fix: icon of selected item should be highlighted.

fix: (modpack download): add default category.
feat: (modpack download): category & sort.
2021-08-04 00:09:22 +08:00 · 2021-08-04 00:08:23 +08:00 · 2021-08-03 22:47:53 +08:00 · 2021-08-03 22:07:19 +08:00 · 2021-08-02 23:11:30 +08:00 · 2021-08-02 16:46:45 +08:00
618 changed files with 40477 additions and 17078 deletions
@@ -0,0 +1,28 @@
+# 公告
+
+提交前请确保你的启动器版本是**最新的开发版**，可以在启动器设置中更换更新通道至开发版获取更新。
+
+**如果你在阅读完本公告后仍然希望在此处发布 issue，请将公告内容删去，并按照下面的模板填入相关信息。**
+
+
+
+我们发现，对于不经常检查邮箱的人来说，GitHub Issues 的反馈效率太低，时隔几个小时甚至一天的情况很多。为了改善反馈效率，并将积极为 HMCL 提供问题反馈和建议的人聚集起来，我们希望在这里反馈的人可以在 HMCL 3 用户 QQ 群：219177735 中反馈信息，**而不在 GitHub Issues 中反馈问题**。
+
+如果你希望在 QQ 群中反馈问题，也请将下面的信息表填好直接发在群中，加快我们的沟通速度。
+
+
+
+# 问题提交
+
+*完整地填下面的问题提交表对我们很重要，这可以加快我们分析问题原因的速度。*
+
+* 启动器版本：
+* 操作系统：
+* Java 版本：
+* 错误截图（最好请将整个电脑屏幕的截图发上来）：
+* 游戏版本（如果是启动通过启动器自带的自动安装功能安装的游戏）：
+* 对游戏做的修改（是否自行通过安装器安装 Rift 等 API，以及 mod）：
+* 游戏崩溃报告（如果有）：
+* 启动器崩溃报告（如果有）：
+* 启动器日志文件（出现问题后点击启动器设置中的【导出启动器日志】按钮）：
+* 问题描述（如何触发问题）：
@@ -0,0 +1,27 @@
+name: Java CI
+
+on: [push, pull_request]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up JDK 1.8
+      uses: actions/setup-java@v1
+      with:
+        java-version: 1.8
+        java-package: jdk+fx
+    - name: Check style main
+      run: ./gradlew checkstyleMain
+    - name: Check style test
+      run: ./gradlew checkstyleTest
+    - name: Build with Gradle
+      run: ./gradlew build
+    - name: Upload Artifacts
+      uses: actions/upload-artifact@v2
+      with:
+        name: HMCL
+        path: HMCL/build/libs
@@ -4,7 +4,6 @@
 hs_err_pid*

 .gradle
-.idea

 *.lck
 *.1
@@ -12,14 +11,38 @@ hs_err_pid*
 *.log
 .mine*
 NVIDIA
-*.json

 # gradle build
 /build/
 /HMCL/build/
 /HMCLCore/build/
+/HMCLTransformerDiscoveryService/build/

-# idea output
+# idea
+.idea
 /out/
 /HMCL/out/
-/HMCLCore/out/
+/HMCLCore/out/
+/HMCLTransformerDiscoveryService/out/
+
+# eclipse
+/bin/
+/HMCL/bin/
+/HMCLCore/bin/
+/HMCLTransformerDiscoveryService/bin/
+.classpath
+.project
+.settings
+
+# netbeans
+.nb-gradle
+
+*.exe
+!/HMCL/src/main/resources/assets/HMCLauncher.exe
+
+# macos
+.DS_Store
+
+# test
+/hmcl.json
+/.hmcl.json
@@ -1,5 +1,17 @@
+buildscript {
+    repositories {
+        gradlePluginPortal()
+        maven { url 'https://jitpack.io' }
+    }
+    dependencies {
+        classpath 'org.tukaani:xz:1.8'
+        classpath 'org.glavo:pack200:0.3.0'
+    }
+}
+
 plugins {
-    id 'com.github.johnrengelman.shadow' version '2.0.4'
+    id 'application'
+    id 'com.github.johnrengelman.shadow' version '7.0.0'
 }

 import java.nio.file.FileSystems
@@ -9,21 +21,28 @@ import java.security.Signature
 import java.security.spec.PKCS8EncodedKeySpec
 import java.util.jar.JarFile
 import java.util.jar.JarOutputStream
-import java.util.jar.Pack200
 import java.util.zip.GZIPOutputStream
 import java.util.zip.ZipFile
 import java.nio.file.Files

 import org.tukaani.xz.LZMA2Options
 import org.tukaani.xz.XZOutputStream
+import org.glavo.pack200.Pack200

-def buildnumber = System.getenv("BUILD_NUMBER") ?: "SNAPSHOT"
-def versionroot = System.getenv("VERSION_ROOT") ?: "3.1"
+def dev = null
+def shortcommit = System.getenv("GITHUB_SHA")?.toLowerCase()?.substring(0, 7) ?: null
+if (shortcommit != null && !shortcommit.isEmpty()) dev = "dev-" + shortcommit
+def buildnumber = System.getenv("BUILD_NUMBER") ?: dev ?: "SNAPSHOT"
+if (System.getenv("BUILD_NUMBER") != null && System.getenv("BUILD_NUMBER_OFFSET") != null)
+    buildnumber = (Integer.parseInt(System.getenv("BUILD_NUMBER")) - Integer.parseInt(System.getenv("BUILD_NUMBER_OFFSET"))).toString()
+def versionroot = System.getenv("VERSION_ROOT") ?: "3.3"
 version = versionroot + '.' + buildnumber

+mainClassName = 'org.jackhuang.hmcl.Main'
+
 dependencies {
-    compile project(":HMCLCore")
-    compile rootProject.files("lib/JFoenix.jar")
+    implementation project(":HMCLCore")
+    implementation rootProject.files("lib/JFoenix.jar")
 }

 def digest(String algorithm, byte[] bytes) {
@@ -64,35 +83,73 @@ ext.packer = Pack200.newPacker()
 packer.properties()["pack.effort"] = "9"
 ext.unpacker = Pack200.newUnpacker()

+// Pack200 does not guarantee that unpacked .class file is bit-wise same as the .class file before packing
+// because of shrinking. So we should pack .class files and unpack it to make sure that after unpacking
+// .class files remain the same.
 def repack(File file) {
    def packed = new ByteArrayOutputStream()
    new JarFile(file).withCloseable { packer.pack(it, packed) }
    new JarOutputStream(file.newOutputStream()).withCloseable { unpacker.unpack(new ByteArrayInputStream(packed.toByteArray()), it) }
 }

-jar {
-    manifest {
-        attributes 'Created-By': 'Copyright(c) 2013-2018 huangyuhui.',
-                'Main-Class': 'org.jackhuang.hmcl.Main',
-                'Multi-Release': 'true',
-                'Implementation-Version': version
+sourceSets {
+    java11 {
+        java {
+            srcDirs = ['src/main/java11']
+        }
    }
-    finalizedBy shadowJar
+}
+
+compileJava11Java {
+    if(JavaVersion.current() < JavaVersion.VERSION_11) {
+        javaCompiler = javaToolchains.compilerFor {
+            languageVersion = JavaLanguageVersion.of(11)
+        }
+    }
+    options.compilerArgs.add('--add-exports=java.base/jdk.internal.loader=ALL-UNNAMED')
+    sourceCompatibility = 11
+    targetCompatibility = 11
+}
+
+jar {
+    enabled = false
+    dependsOn shadowJar
 }

 shadowJar {
    classifier = null

-    exclude 'META-INF/maven/**'
-    exclude 'META-INF/NOTICE.txt'
-    exclude 'META-INF/LICENSE.txt'
-
-    dependencies {
-        exclude(dependency('org.jetbrains:annotations'))
+    manifest {
+        attributes 'Created-By': 'Copyright(c) 2013-2020 huangyuhui.',
+                'Main-Class': mainClassName,
+                'Multi-Release': 'true',
+                'Implementation-Version': version,
+                'Class-Path': 'pack200.jar',
+                'Add-Opens': [
+                        'java.base/java.lang',
+                        'java.base/java.lang.reflect',
+                        'javafx.graphics/javafx.css',
+                        'javafx.base/com.sun.javafx.runtime',
+                        'javafx.controls/com.sun.javafx.scene.control.behavior',
+                        'javafx.controls/javafx.scene.control.skin',
+                        'javafx.controls/com.sun.javafx.scene.control',
+                        'javafx.base/com.sun.javafx.binding',
+                        'javafx.base/com.sun.javafx.event',
+                        'javafx.graphics/com.sun.javafx.stage'
+                ].join(" "),
+                'Add-Exports': [
+                        'java.base/jdk.internal.loader',
+                        'javafx.controls/com.sun.javafx.scene.control.behavior',
+                        'javafx.controls/javafx.scene.control.skin',
+                        'javafx.controls/com.sun.javafx.scene.control',
+                        'javafx.base/com.sun.javafx.binding',
+                        'javafx.graphics/com.sun.javafx.stage',
+                        'javafx.base/com.sun.javafx.event'
+                ].join(" ")
    }

    doLast {
-        repack(jar.archivePath)
+        repack(jar.archivePath) // see repack()
        attachSignature(jar.archivePath)
        createChecksum(jar.archivePath)
    }
@@ -105,6 +162,30 @@ def createExecutable(String suffix, String header) {
    createChecksum(output)
 }

+processResources {
+    ext.convertToBSS = { String resource ->
+        // exclude resource
+        doFirst {
+            def cssFile = new File(this.projectDir, "src/main/resources/" + resource)
+            def bssFile = new File(this.projectDir, "build/compiled-resources/" + resource[0..-4] + "bss")
+            bssFile.parentFile.mkdirs()
+            javaexec {
+                main = "com.sun.javafx.css.parser.Css2Bin"
+                args = [cssFile, bssFile]
+            }
+        }
+    }
+    from "build/compiled-resources"
+
+    convertToBSS "assets/css/root.css"
+    convertToBSS "assets/css/blue.css"
+
+    into('META-INF/versions/11') {
+        from sourceSets.java11.output
+    }
+    dependsOn java11Classes
+}
+
 task makePack(dependsOn: jar) {
    ext.outputPath = new File(jar.archivePath.parentFile, jar.archivePath.name[0..-4] + "pack")
    doLast {
@@ -117,7 +198,8 @@ task makePack(dependsOn: jar) {

 task makePackXz(dependsOn: makePack) doLast {
    def packXz = new File(makePack.outputPath.parentFile, makePack.outputPath.name + ".xz")
-    new XZOutputStream(packXz.newOutputStream(), new LZMA2Options(6)).withCloseable { it << makePack.outputPath.bytes }
+    // Our CI server does not have enough memory space to compress file at highest level.
+    new XZOutputStream(packXz.newOutputStream(), new LZMA2Options(5)).withCloseable { it << makePack.outputPath.bytes }
    createChecksum(packXz)
 }

@@ -1,6 +1,6 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2017  huangyuhui <huanghongxun2008@126.com>
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
@@ -13,73 +13,105 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl;

-import static org.jackhuang.hmcl.util.Logging.LOG;
-
-import com.jfoenix.concurrency.JFXUtilities;
 import javafx.application.Application;
 import javafx.application.Platform;
 import javafx.stage.Stage;
-
+import org.jackhuang.hmcl.setting.ConfigHolder;
 import org.jackhuang.hmcl.task.Schedulers;
+import org.jackhuang.hmcl.task.AsyncTaskExecutor;
+import org.jackhuang.hmcl.ui.AwtUtils;
 import org.jackhuang.hmcl.ui.Controllers;
 import org.jackhuang.hmcl.upgrade.UpdateChecker;
-import org.jackhuang.hmcl.util.*;
+import org.jackhuang.hmcl.upgrade.UpdateHandler;
+import org.jackhuang.hmcl.util.CrashReporter;
+import org.jackhuang.hmcl.util.Lang;
+import org.jackhuang.hmcl.util.StringUtils;
+import org.jackhuang.hmcl.util.io.FileUtils;
+import org.jackhuang.hmcl.util.platform.OperatingSystem;

+import java.awt.*;
 import java.io.File;
+import java.io.IOException;
+import java.io.UnsupportedEncodingException;
 import java.lang.management.ManagementFactory;
-import java.net.URISyntaxException;
-import java.net.URL;
-import java.net.URLClassLoader;
+import java.net.*;
 import java.nio.file.Paths;
 import java.util.LinkedList;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
+import java.util.logging.Level;
+
+import static org.jackhuang.hmcl.ui.FXUtils.runInFX;
+import static org.jackhuang.hmcl.util.Logging.LOG;
+import static org.jackhuang.hmcl.util.i18n.I18n.i18n;

 public final class Launcher extends Application {
+    public static final CookieManager COOKIE_MANAGER = new CookieManager();

    @Override
    public void start(Stage primaryStage) {
        Thread.currentThread().setUncaughtExceptionHandler(CRASH_REPORTER);

+        CookieHandler.setDefault(COOKIE_MANAGER);
+
        try {
-            // When launcher visibility is set to "hide and reopen" without Platform.implicitExit = false,
-            // Stage.show() cannot work again because JavaFX Toolkit have already shut down.
-            Platform.setImplicitExit(false);
-            Controllers.initialize(primaryStage);
-            primaryStage.setResizable(false);
-            primaryStage.setScene(Controllers.getScene());
+            try {
+                ConfigHolder.init();
+            } catch (IOException e) {
+                LOG.log(Level.SEVERE, "Failed to load config", e);
+                Main.showErrorAndExit(i18n("fatal.config_loading_failure", Paths.get("").toAbsolutePath().normalize()));
+            }

-            UpdateChecker.init();
+            // runLater to ensure ConfigHolder.init() finished initialization
+            Platform.runLater(() -> {
+                // When launcher visibility is set to "hide and reopen" without Platform.implicitExit = false,
+                // Stage.show() cannot work again because JavaFX Toolkit have already shut down.
+                Platform.setImplicitExit(false);
+                Controllers.initialize(primaryStage);

-            primaryStage.show();
+                initIcon();
+
+                UpdateChecker.init();
+
+                primaryStage.show();
+            });
        } catch (Throwable e) {
            CRASH_REPORTER.uncaughtException(Thread.currentThread(), e);
        }
    }

-    public static void main(String[] args) {
-        Thread.setDefaultUncaughtExceptionHandler(CRASH_REPORTER);
+    @Override
+    public void stop() throws Exception {
+        super.stop();
+        Controllers.onApplicationStop();
+    }

-        if (!FileUtils.makeDirectory(LOG_DIRECTORY))
-            System.out.println("Unable to create log directory " + LOG_DIRECTORY + ", log files cannot be generated.");
+    private void initIcon() {
+        Toolkit toolkit = Toolkit.getDefaultToolkit();
+        Image image = toolkit.getImage(Launcher.class.getResource("/assets/img/icon.png"));
+        AwtUtils.setAppleIcon(image);
+    }
+
+    public static void main(String[] args) {
+        if (UpdateHandler.processArguments(args)) {
+            return;
+        }
+
+        Thread.setDefaultUncaughtExceptionHandler(CRASH_REPORTER);
+        AsyncTaskExecutor.setUncaughtExceptionHandler(new CrashReporter(false));

        try {
-            Logging.start(LOG_DIRECTORY);
-
-            // NetworkUtils.setUserAgentSupplier(() -> "Hello Minecraft! Launcher");
-            Constants.UI_THREAD_SCHEDULER = Constants.JAVAFX_UI_THREAD_SCHEDULER;
-
            LOG.info("*** " + Metadata.TITLE + " ***");
            LOG.info("Operating System: " + System.getProperty("os.name") + ' ' + OperatingSystem.SYSTEM_VERSION);
            LOG.info("Java Version: " + System.getProperty("java.version") + ", " + System.getProperty("java.vendor"));
            LOG.info("Java VM Version: " + System.getProperty("java.vm.name") + " (" + System.getProperty("java.vm.info") + "), " + System.getProperty("java.vm.vendor"));
            LOG.info("Java Home: " + System.getProperty("java.home"));
            LOG.info("Current Directory: " + Paths.get("").toAbsolutePath());
-            LOG.info("HMCL Directory: " + HMCL_DIRECTORY);
+            LOG.info("HMCL Directory: " + Metadata.HMCL_DIRECTORY);
            LOG.info("Memory: " + Runtime.getRuntime().maxMemory() / 1024 / 1024 + "MB");
            ManagementFactory.getMemoryPoolMXBeans().stream().filter(bean -> bean.getName().equals("Metaspace")).findAny()
                    .ifPresent(bean -> LOG.info("Metaspace: " + bean.getUsage().getUsed() / 1024 / 1024 + "MB"));
@@ -93,21 +125,20 @@ public final class Launcher extends Application {
    public static void stopApplication() {
        LOG.info("Stopping application.\n" + StringUtils.getStackTrace(Thread.currentThread().getStackTrace()));

-        JFXUtilities.runInFX(() -> {
+        runInFX(() -> {
            if (Controllers.getStage() == null)
                return;
            Controllers.getStage().close();
            Schedulers.shutdown();
            Controllers.shutdown();
            Platform.exit();
-            Lang.executeDelayed(OperatingSystem::forceGC, TimeUnit.SECONDS, 5, true);
        });
    }

    public static void stopWithoutPlatform() {
        LOG.info("Stopping application without JavaFX Toolkit.\n" + StringUtils.getStackTrace(Thread.currentThread().getStackTrace()));

-        JFXUtilities.runInFX(() -> {
+        runInFX(() -> {
            if (Controllers.getStage() == null)
                return;
            Controllers.getStage().close();
@@ -129,6 +160,16 @@ public final class Launcher extends Application {
                } catch (URISyntaxException e) {
                    return null;
                }
+        } else {
+            try {
+                File jarFile = new File(URLDecoder.decode(Launcher.class.getProtectionDomain().getCodeSource().getLocation().getPath(), "UTF-8"));
+                String ext = FileUtils.getExtension(jarFile);
+                if ("jar".equals(ext) || "exe".equals(ext))
+                    result.add(jarFile);
+            } catch (UnsupportedEncodingException e) {
+                LOG.log(Level.WARNING, "Failed to decode jar path", e);
+                return null;
+            }
        }
        if (result.isEmpty())
            return null;
@@ -136,9 +177,5 @@ public final class Launcher extends Application {
            return result;
    }

-    public static final File MINECRAFT_DIRECTORY = OperatingSystem.getWorkingDirectory("minecraft");
-    public static final File HMCL_DIRECTORY = OperatingSystem.getWorkingDirectory("hmcl");
-    public static final File LOG_DIRECTORY = new File(Launcher.HMCL_DIRECTORY, "logs");
-
-    public static final CrashReporter CRASH_REPORTER = new CrashReporter();
+    public static final CrashReporter CRASH_REPORTER = new CrashReporter(true);
 }
@@ -1,6 +1,6 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
@@ -13,48 +13,58 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl;

-import static org.jackhuang.hmcl.util.Logging.LOG;
-import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
+import org.jackhuang.hmcl.util.Logging;
+import org.jackhuang.hmcl.util.SelfDependencyPatcher;

+import javax.net.ssl.*;
+import javax.swing.*;
 import java.io.File;
 import java.io.IOException;
+import java.io.InputStream;
+import java.nio.file.Files;
+import java.nio.file.Path;
 import java.nio.file.Paths;
+import java.security.KeyManagementException;
 import java.security.KeyStore;
 import java.security.KeyStoreException;
 import java.security.NoSuchAlgorithmException;
+import java.security.cert.CertificateException;
 import java.security.cert.X509Certificate;
+import java.util.Collections;
 import java.util.logging.Level;

-import javax.net.ssl.TrustManager;
-import javax.net.ssl.TrustManagerFactory;
-import javax.net.ssl.X509TrustManager;
-import javax.swing.JOptionPane;
-
-import org.jackhuang.hmcl.setting.ConfigHolder;
-import org.jackhuang.hmcl.upgrade.UpdateHandler;
+import static org.jackhuang.hmcl.util.Lang.thread;
+import static org.jackhuang.hmcl.util.Logging.LOG;
+import static org.jackhuang.hmcl.util.i18n.I18n.i18n;

 public final class Main {

+    private Main() {
+    }
+
    public static void main(String[] args) {
        System.setProperty("java.net.useSystemProxies", "true");
+        System.setProperty("http.agent", "HMCL/" + Metadata.VERSION);
+        System.setProperty("javafx.autoproxy.disable", "true");
+
+        checkDirectoryPath();
+
+        // This environment check will take ~300ms
+        thread(() -> {
+            fixLetsEncrypt();
+            checkDSTRootCAX3();
+        }, "CA Certificate Check", true);
+
+        Logging.start(Metadata.HMCL_DIRECTORY.resolve("logs"));

        checkJavaFX();
-        checkDirectoryPath();
-        checkDSTRootCAX3();

-        if (UpdateHandler.processArguments(args)) {
-            return;
-        }
-
-        try {
-            ConfigHolder.init();
-        } catch (IOException e) {
-            showErrorAndExit(i18n("fatal.config_loading_failure", Paths.get("").toAbsolutePath().normalize()));
-        }
+        // Fix title bar not displaying in GTK systems
+        System.setProperty("jdk.gtk.version", "2");

        Launcher.main(args);
    }
@@ -70,9 +80,13 @@ public final class Main {

    private static void checkJavaFX() {
        try {
-            Class.forName("javafx.application.Application");
-        } catch (ClassNotFoundException e) {
-            showErrorAndExit(i18n("fatal.missing_javafx"));
+            SelfDependencyPatcher.patch();
+        } catch (SelfDependencyPatcher.PatchException e) {
+            LOG.log(Level.SEVERE, "unable to patch JVM", e);
+            showErrorAndExit(i18n("fatal.javafx.missing"));
+        } catch (SelfDependencyPatcher.IncompatibleVersionException e) {
+            LOG.log(Level.SEVERE, "unable to patch JVM", e);
+            showErrorAndExit(i18n("fatal.javafx.incompatible"));
        }
    }

@@ -101,7 +115,7 @@ public final class Main {
    /**
     * Indicates that a fatal error has occurred, and that the application cannot start.
     */
-    private static void showErrorAndExit(String message) {
+    static void showErrorAndExit(String message) {
        System.err.println(message);
        System.err.println("A fatal error has occurred, forcibly exiting.");
        JOptionPane.showMessageDialog(null, message, "Error", JOptionPane.ERROR_MESSAGE);
@@ -111,10 +125,40 @@ public final class Main {
    /**
     * Indicates that potential issues have been detected, and that the application may not function properly (but it can still run).
     */
-    private static void showWarningAndContinue(String message) {
+    static void showWarningAndContinue(String message) {
        System.err.println(message);
        System.err.println("Potential issues have been detected.");
        JOptionPane.showMessageDialog(null, message, "Warning", JOptionPane.WARNING_MESSAGE);
    }

+    static void fixLetsEncrypt() {
+        try {
+            KeyStore defaultKeyStore = KeyStore.getInstance(KeyStore.getDefaultType());
+            Path ksPath = Paths.get(System.getProperty("java.home"), "lib", "security", "cacerts");
+
+            try (InputStream ksStream = Files.newInputStream(ksPath)) {
+                defaultKeyStore.load(ksStream, "changeit".toCharArray());
+            }
+
+            KeyStore letsEncryptKeyStore = KeyStore.getInstance(KeyStore.getDefaultType());
+            InputStream letsEncryptFile = Main.class.getResourceAsStream("/assets/lekeystore.jks");
+            letsEncryptKeyStore.load(letsEncryptFile, "supersecretpassword".toCharArray());
+
+            KeyStore merged = KeyStore.getInstance(KeyStore.getDefaultType());
+            merged.load(null, new char[0]);
+            for (String alias : Collections.list(letsEncryptKeyStore.aliases()))
+                merged.setCertificateEntry(alias, letsEncryptKeyStore.getCertificate(alias));
+            for (String alias : Collections.list(defaultKeyStore.aliases()))
+                merged.setCertificateEntry(alias, defaultKeyStore.getCertificate(alias));
+
+            TrustManagerFactory instance = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
+            instance.init(merged);
+            SSLContext tls = SSLContext.getInstance("TLS");
+            tls.init(null, instance.getTrustManagers(), null);
+            HttpsURLConnection.setDefaultSSLSocketFactory(tls.getSocketFactory());
+            LOG.info("Added Lets Encrypt root certificates as additional trust");
+        } catch (KeyStoreException | IOException | NoSuchAlgorithmException | CertificateException | KeyManagementException e) {
+            LOG.log(Level.SEVERE, "Failed to load lets encrypt certificate. Expect problems", e);
+        }
+    }
 }
@@ -1,6 +1,6 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
@@ -13,11 +13,15 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl;

-import org.jackhuang.hmcl.util.JarUtils;
+import org.jackhuang.hmcl.util.io.JarUtils;
+import org.jackhuang.hmcl.util.platform.OperatingSystem;
+
+import java.nio.file.Path;
+import java.nio.file.Paths;

 /**
 * Stores metadata about this application.
@@ -30,6 +34,20 @@ public final class Metadata {
    public static final String TITLE = NAME + " " + VERSION;
    
    public static final String UPDATE_URL = System.getProperty("hmcl.update_source.override", "https://hmcl.huangyuhui.net/api/update_link");
-    public static final String CONTACT_URL = "https://www.huangyuhui.net/hmcl.php";
+    public static final String CONTACT_URL = "https://hmcl.huangyuhui.net/contact";
+    public static final String HELP_URL = "https://hmcl.huangyuhui.net/help";
+    public static final String CHANGELOG_URL = "https://hmcl.huangyuhui.net/changelog/";
    public static final String PUBLISH_URL = "http://www.mcbbs.net/thread-142335-1-1.html";
+
+    public static final Path MINECRAFT_DIRECTORY = OperatingSystem.getWorkingDirectory("minecraft");
+    public static final Path HMCL_DIRECTORY = getHMCLDirectory();
+
+    private static Path getHMCLDirectory() {
+        String home = System.getProperty("user.home", ".");
+        if (OperatingSystem.CURRENT_OS == OperatingSystem.LINUX) {
+            // to fulfill XDG standard.
+            return Paths.get(home, ".cache", "hmcl");
+        }
+        return OperatingSystem.getWorkingDirectory("hmcl");
+    }
 }
@@ -1,55 +0,0 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
- */
-package org.jackhuang.hmcl.event;
-
-import org.jackhuang.hmcl.setting.Profile;
-import org.jackhuang.hmcl.util.ToStringBuilder;
-
-/**
- * This event gets fired when the selected profile changed.
- * <br>
- * This event is fired on the {@link org.jackhuang.hmcl.event.EventBus#EVENT_BUS}
- * @author huangyuhui
- */
-public final class ProfileChangedEvent extends Event {
-    private final Profile profile;
-
-    /**
-     * Constructor.
-     *
-     * @param source {@link org.jackhuang.hmcl.setting.Settings}
-     * @param profile the new profile.
-     */
-    public ProfileChangedEvent(Object source, Profile profile) {
-        super(source);
-
-        this.profile = profile;
-    }
-
-    public Profile getProfile() {
-        return profile;
-    }
-
-    @Override
-    public String toString() {
-        return new ToStringBuilder(this)
-                .append("source", source)
-                .append("profile", profile)
-                .toString();
-    }
-}
@@ -1,60 +0,0 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
- */
-package org.jackhuang.hmcl.event;
-
-import org.jackhuang.hmcl.setting.Profile;
-import org.jackhuang.hmcl.util.ToStringBuilder;
-
-import java.util.Collection;
-import java.util.Collections;
-
-/**
- * This event gets fired when loading profiles.
- * <br>
- * This event is fired on the {@link org.jackhuang.hmcl.event.EventBus#EVENT_BUS}
- *
- * @author huangyuhui
- */
-public class ProfileLoadingEvent extends Event {
-
-    private final Collection<Profile> profiles;
-
-    /**
-     * Constructor.
-     *
-     * @param source {@link org.jackhuang.hmcl.setting.Settings}
-     */
-    public ProfileLoadingEvent(Object source, Collection<Profile> profiles) {
-        super(source);
-
-        this.profiles = Collections.unmodifiableCollection(profiles);
-    }
-
-    public Collection<Profile> getProfiles() {
-        return profiles;
-    }
-
-    @Override
-    public String toString() {
-        return new ToStringBuilder(this)
-                .append("source", source)
-                .append("profiles", profiles)
-                .toString();
-    }
-}
-
@@ -1,180 +0,0 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
- */
-package org.jackhuang.hmcl.game;
-
-import javafx.geometry.Rectangle2D;
-import javafx.scene.image.Image;
-import org.jackhuang.hmcl.Launcher;
-import org.jackhuang.hmcl.auth.Account;
-import org.jackhuang.hmcl.auth.yggdrasil.GameProfile;
-import org.jackhuang.hmcl.auth.yggdrasil.Texture;
-import org.jackhuang.hmcl.auth.yggdrasil.YggdrasilAccount;
-import org.jackhuang.hmcl.setting.Accounts;
-import org.jackhuang.hmcl.task.FileDownloadTask;
-import org.jackhuang.hmcl.task.Scheduler;
-import org.jackhuang.hmcl.task.Schedulers;
-import org.jackhuang.hmcl.task.Task;
-import org.jackhuang.hmcl.ui.DialogController;
-import org.jackhuang.hmcl.util.NetworkUtils;
-
-import java.io.File;
-import java.util.*;
-
-public final class AccountHelper {
-
-    private AccountHelper() {}
-
-    public static final File SKIN_DIR = new File(Launcher.HMCL_DIRECTORY, "skins");
-
-    public static void loadSkins() {
-        for (Account account : Accounts.getAccounts()) {
-            if (account instanceof YggdrasilAccount) {
-                new SkinLoadTask((YggdrasilAccount) account, false).start();
-            }
-        }
-    }
-
-    public static Task loadSkinAsync(YggdrasilAccount account) {
-        return new SkinLoadTask(account, false);
-    }
-
-    public static Task refreshSkinAsync(YggdrasilAccount account) {
-        return new SkinLoadTask(account, true);
-    }
-
-    private static File getSkinFile(UUID uuid) {
-        return new File(SKIN_DIR, uuid + ".png");
-    }
-
-    public static Image getSkin(YggdrasilAccount account) {
-        return getSkin(account, 1);
-    }
-
-    public static Image getSkin(YggdrasilAccount account, double scaleRatio) {
-        UUID uuid = account.getUUID();
-        if (uuid == null)
-            return getSteveSkin(scaleRatio);
-
-        File file = getSkinFile(uuid);
-        if (file.exists()) {
-            Image original = new Image("file:" + file.getAbsolutePath());
-            return new Image("file:" + file.getAbsolutePath(),
-                    original.getWidth() * scaleRatio,
-                    original.getHeight() * scaleRatio,
-                    false, false);
-        }
-        return getDefaultSkin(uuid, scaleRatio);
-    }
-
-    public static Image getSkinImmediately(YggdrasilAccount account, GameProfile profile, double scaleRatio) throws Exception {
-        File file = getSkinFile(profile.getId());
-        downloadSkin(account, profile, true);
-        if (!file.exists())
-            return getDefaultSkin(profile.getId(), scaleRatio);
-
-        String url = "file:" + file.getAbsolutePath();
-        return scale(url, scaleRatio);
-    }
-
-    public static Rectangle2D getViewport(double scaleRatio) {
-        double size = 8.0 * scaleRatio;
-        return new Rectangle2D(size, size, size, size);
-    }
-
-    private static class SkinLoadTask extends Task {
-        private final YggdrasilAccount account;
-        private final boolean refresh;
-        private final List<Task> dependencies = new LinkedList<>();
-
-        public SkinLoadTask(YggdrasilAccount account) {
-            this(account, false);
-        }
-
-        public SkinLoadTask(YggdrasilAccount account, boolean refresh) {
-            this.account = account;
-            this.refresh = refresh;
-        }
-
-        @Override
-        public Scheduler getScheduler() {
-            return Schedulers.io();
-        }
-
-        @Override
-        public Collection<Task> getDependencies() {
-            return dependencies;
-        }
-
-        @Override
-        public void execute() throws Exception {
-            if (!account.isLoggedIn() && (account.getCharacter() == null || refresh))
-                DialogController.logIn(account);
-
-            downloadSkin(account, refresh);
-        }
-    }
-
-    private static void downloadSkin(YggdrasilAccount account, GameProfile profile, boolean refresh) throws Exception {
-        account.clearCache();
-
-        Optional<Texture> texture = account.getSkin(profile);
-        if (!texture.isPresent()) return;
-        String url = texture.get().getUrl();
-        File file = getSkinFile(profile.getId());
-        if (!refresh && file.exists())
-            return;
-        new FileDownloadTask(NetworkUtils.toURL(url), file).run();
-    }
-
-    private static void downloadSkin(YggdrasilAccount account, boolean refresh) throws Exception {
-        account.clearCache();
-
-        if (account.getCharacter() == null) return;
-        Optional<Texture> texture = account.getSkin();
-        if (!texture.isPresent()) return;
-        String url = texture.get().getUrl();
-        File file = getSkinFile(account.getUUID());
-        if (!refresh && file.exists())
-            return;
-        new FileDownloadTask(NetworkUtils.toURL(url), file).run();
-    }
-
-    public static Image scale(String url, double scaleRatio) {
-        Image origin = new Image(url);
-        return new Image(url,
-                origin.getWidth() * scaleRatio,
-                origin.getHeight() * scaleRatio,
-                false, false);
-    }
-
-    public static Image getSteveSkin(double scaleRatio) {
-         return scale("/assets/img/steve.png", 4);
-    }
-
-    public static Image getAlexSkin(double scaleRatio) {
-        return scale("/assets/img/alex.png", 4);
-    }
-
-    public static Image getDefaultSkin(UUID uuid, double scaleRatio) {
-        int type = uuid.hashCode() & 1;
-        if (type == 1)
-            return getAlexSkin(scaleRatio);
-        else
-            return getSteveSkin(scaleRatio);
-    }
-}
@@ -0,0 +1,47 @@
+/*
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package org.jackhuang.hmcl.game;
+
+import javafx.beans.property.SimpleStringProperty;
+import javafx.beans.property.StringProperty;
+import org.jackhuang.hmcl.download.DefaultCacheRepository;
+
+import java.nio.file.Paths;
+
+public class HMCLCacheRepository extends DefaultCacheRepository {
+
+    private final StringProperty directory = new SimpleStringProperty();
+
+    public HMCLCacheRepository() {
+        directory.addListener((a, b, t) -> changeDirectory(Paths.get(t)));
+    }
+
+    public String getDirectory() {
+        return directory.get();
+    }
+
+    public StringProperty directoryProperty() {
+        return directory;
+    }
+
+    public void setDirectory(String directory) {
+        this.directory.set(directory);
+    }
+
+    public static final HMCLCacheRepository REPOSITORY = new HMCLCacheRepository();
+}
@@ -1,41 +0,0 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
- */
-package org.jackhuang.hmcl.game;
-
-import org.jackhuang.hmcl.download.DefaultDependencyManager;
-import org.jackhuang.hmcl.download.DownloadProvider;
-import org.jackhuang.hmcl.download.GameBuilder;
-import org.jackhuang.hmcl.setting.Profile;
-
-/**
- * @author huangyuhui
- */
-public class HMCLDependencyManager extends DefaultDependencyManager {
-    private final Profile profile;
-
-    public HMCLDependencyManager(Profile profile, DownloadProvider downloadProvider) {
-        super(profile.getRepository(), downloadProvider);
-
-        this.profile = profile;
-    }
-
-    @Override
-    public GameBuilder gameBuilder() {
-        return new HMCLGameBuilder(profile);
-    }
-}
@@ -1,40 +0,0 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
- */
-package org.jackhuang.hmcl.game;
-
-import org.jackhuang.hmcl.download.DefaultGameBuilder;
-import org.jackhuang.hmcl.setting.Profile;
-import org.jackhuang.hmcl.task.Task;
-
-/**
- * @author huangyuhui
- */
-public class HMCLGameBuilder extends DefaultGameBuilder {
-    private final Profile profile;
-
-    public HMCLGameBuilder(Profile profile) {
-        super(profile.getDependency());
-
-        this.profile = profile;
-    }
-
-    @Override
-    protected Task downloadGameAsync(String gameVersion, Version version) {
-        return new HMCLGameDownloadTask(profile, gameVersion, version);
-    }
-}
@@ -1,84 +0,0 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
- */
-package org.jackhuang.hmcl.game;
-
-import org.jackhuang.hmcl.setting.Profile;
-import org.jackhuang.hmcl.setting.Settings;
-import org.jackhuang.hmcl.task.FileDownloadTask;
-import org.jackhuang.hmcl.task.FileDownloadTask.IntegrityCheck;
-import org.jackhuang.hmcl.task.Task;
-import org.jackhuang.hmcl.util.FileUtils;
-import org.jackhuang.hmcl.util.Logging;
-import org.jackhuang.hmcl.util.NetworkUtils;
-
-import java.io.File;
-import java.io.IOException;
-import java.util.LinkedList;
-import java.util.List;
-import java.util.Optional;
-import java.util.logging.Level;
-
-import static org.jackhuang.hmcl.setting.ConfigHolder.config;
-
-/**
- * @author huangyuhui
- */
-public class HMCLGameDownloadTask extends Task {
-    private final Profile profile;
-    private final String gameVersion;
-    private final Version version;
-    private final List<Task> dependencies = new LinkedList<>();
-
-    public HMCLGameDownloadTask(Profile profile, String gameVersion, Version version) {
-        this.profile = profile;
-        this.gameVersion = gameVersion;
-        this.version = version;
-
-        setSignificance(TaskSignificance.MINOR);
-    }
-
-    @Override
-    public List<Task> getDependencies() {
-        return dependencies;
-    }
-
-    @Override
-    public void execute() {
-        File jar = profile.getRepository().getVersionJar(version);
-
-        // Force using common directory will not affect the behaviour that repository acts
-        // Since we always copy the downloaded jar to .minecraft/versions/<version>/
-        File cache = new File(Optional.ofNullable(Settings.instance().getCommonDirectory())
-                .orElse(Settings.getDefaultCommonDirectory()),
-                "jars/" + gameVersion + ".jar");
-        if (cache.exists())
-            try {
-                FileUtils.copyFile(cache, jar);
-                return;
-            } catch (IOException e) {
-                Logging.LOG.log(Level.SEVERE, "Unable to copy cached Minecraft jar from " + cache + " to " + jar, e);
-            }
-
-        dependencies.add(new FileDownloadTask(
-                NetworkUtils.toURL(profile.getDependency().getDownloadProvider().injectURL(version.getDownloadInfo().getUrl())),
-                cache,
-                new IntegrityCheck("SHA-1", version.getDownloadInfo().getSha1())
-        ).then(Task.of(v -> FileUtils.copyFile(cache, jar))));
-    }
-
-}
@@ -1,7 +1,7 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
@@ -13,7 +13,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl.game;

@@ -21,26 +21,32 @@ import org.jackhuang.hmcl.Metadata;
 import org.jackhuang.hmcl.auth.AuthInfo;
 import org.jackhuang.hmcl.launch.DefaultLauncher;
 import org.jackhuang.hmcl.launch.ProcessListener;
-import org.jackhuang.hmcl.util.CommandBuilder;
+import org.jackhuang.hmcl.util.Logging;
+import org.jackhuang.hmcl.util.i18n.I18n;
+import org.jackhuang.hmcl.util.io.FileUtils;
+import org.jackhuang.hmcl.util.platform.ManagedProcess;

-import java.util.List;
+import java.io.File;
+import java.io.IOException;
+import java.util.Locale;
 import java.util.Map;
+import java.util.logging.Level;

 /**
 * @author huangyuhui
 */
 public final class HMCLGameLauncher extends DefaultLauncher {

-    public HMCLGameLauncher(GameRepository repository, String versionId, AuthInfo authInfo, LaunchOptions options) {
-        this(repository, versionId, authInfo, options, null);
+    public HMCLGameLauncher(GameRepository repository, Version version, AuthInfo authInfo, LaunchOptions options) {
+        this(repository, version, authInfo, options, null);
    }

-    public HMCLGameLauncher(GameRepository repository, String versionId, AuthInfo authInfo, LaunchOptions options, ProcessListener listener) {
-        this(repository, versionId, authInfo, options, listener, true);
+    public HMCLGameLauncher(GameRepository repository, Version version, AuthInfo authInfo, LaunchOptions options, ProcessListener listener) {
+        this(repository, version, authInfo, options, listener, true);
    }

-    public HMCLGameLauncher(GameRepository repository, String versionId, AuthInfo authInfo, LaunchOptions options, ProcessListener listener, boolean daemon) {
-        super(repository, versionId, authInfo, options, listener, daemon);
+    public HMCLGameLauncher(GameRepository repository, Version version, AuthInfo authInfo, LaunchOptions options, ProcessListener listener, boolean daemon) {
+        super(repository, version, authInfo, options, listener, daemon);
    }

    @Override
@@ -50,4 +56,29 @@ public final class HMCLGameLauncher extends DefaultLauncher {
        res.put("${launcher_version}", Metadata.VERSION);
        return res;
    }
+
+    private void generateOptionsTxt() {
+        File optionsFile = new File(repository.getRunDirectory(version.getId()), "options.txt");
+        if (optionsFile.exists())
+            return;
+        try {
+            // TODO: Dirty implementation here
+            if (I18n.getCurrentLocale().getLocale() == Locale.CHINA)
+                FileUtils.writeText(optionsFile, "lang:zh_CN\nforceUnicodeFont:true\n");
+        } catch (IOException e) {
+            Logging.LOG.log(Level.WARNING, "Unable to generate options.txt", e);
+        }
+    }
+
+    @Override
+    public ManagedProcess launch() throws IOException, InterruptedException {
+        generateOptionsTxt();
+        return super.launch();
+    }
+
+    @Override
+    public void makeLaunchScript(File scriptFile) throws IOException {
+        generateOptionsTxt();
+        super.makeLaunchScript(scriptFile);
+    }
 }
@@ -1,7 +1,7 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
@@ -13,35 +13,46 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl.game;

 import com.google.gson.Gson;
 import com.google.gson.GsonBuilder;
-import org.jackhuang.hmcl.event.EventBus;
-import org.jackhuang.hmcl.event.RefreshedVersionsEvent;
-import org.jackhuang.hmcl.event.RefreshingVersionsEvent;
-import org.jackhuang.hmcl.setting.EnumGameDirectory;
+import com.google.gson.JsonParseException;
+import com.google.gson.reflect.TypeToken;
+import javafx.scene.image.Image;
+import org.jackhuang.hmcl.Metadata;
+import org.jackhuang.hmcl.download.LibraryAnalyzer;
+import org.jackhuang.hmcl.mod.Modpack;
+import org.jackhuang.hmcl.mod.ModpackConfiguration;
+import org.jackhuang.hmcl.mod.mcbbs.McbbsModpackLocalInstallTask;
+import org.jackhuang.hmcl.mod.mcbbs.McbbsModpackManifest;
 import org.jackhuang.hmcl.setting.Profile;
-import org.jackhuang.hmcl.setting.Settings;
+import org.jackhuang.hmcl.setting.ProxyManager;
 import org.jackhuang.hmcl.setting.VersionSetting;
-import org.jackhuang.hmcl.util.FileUtils;
+import org.jackhuang.hmcl.util.Lang;
 import org.jackhuang.hmcl.util.Logging;
+import org.jackhuang.hmcl.util.StringUtils;
+import org.jackhuang.hmcl.util.gson.JsonUtils;
+import org.jackhuang.hmcl.util.io.FileUtils;
+import org.jackhuang.hmcl.util.platform.JavaVersion;

 import java.io.File;
 import java.io.IOException;
+import java.nio.file.Files;
 import java.util.*;
 import java.util.logging.Level;

 import static org.jackhuang.hmcl.setting.ConfigHolder.config;
+import static org.jackhuang.hmcl.ui.FXUtils.newImage;

 public class HMCLGameRepository extends DefaultGameRepository {
    private final Profile profile;
-    private final Map<String, VersionSetting> versionSettings = new HashMap<>();
-    private final Set<String> beingModpackVersions = new HashSet<>();

-    public boolean checkedModpack = false, checkingModpack = false;
+    // local version settings
+    private final Map<String, VersionSetting> localVersionSettings = new HashMap<>();
+    private final Set<String> beingModpackVersions = new HashSet<>();

    public HMCLGameRepository(Profile profile, File baseDirectory) {
        super(baseDirectory);
@@ -52,49 +63,41 @@ public class HMCLGameRepository extends DefaultGameRepository {
        return profile;
    }

-    private boolean useSelf(String assetId) {
-        return new File(getBaseDirectory(), "assets/indexes/" + assetId + ".json").exists();
-    }
-
    @Override
-    public File getAssetDirectory(String version, String assetId) {
-        if (Settings.instance().isCommonDirectoryDisabled() || useSelf(assetId))
-            return super.getAssetDirectory(version, assetId);
-        else
-            return new File(Settings.instance().getCommonDirectory(), "assets");
-    }
-
-    @Override
-    public File getRunDirectory(String id) {
-        if (beingModpackVersions.contains(id) || isModpack(id))
-            return getVersionRoot(id);
-        else {
-            VersionSetting vs = profile.getVersionSetting(id);
-            switch (vs.getGameDirType()) {
-                case VERSION_FOLDER: return getVersionRoot(id);
-                case ROOT_FOLDER: return super.getRunDirectory(id);
-                case CUSTOM: return new File(vs.getGameDir());
-                default: throw new Error();
-            }
+    public GameDirectoryType getGameDirectoryType(String id) {
+        if (beingModpackVersions.contains(id) || isModpack(id)) {
+            return GameDirectoryType.VERSION_FOLDER;
+        } else {
+            return getVersionSetting(id).getGameDirType();
        }
    }

    @Override
-    public File getLibraryFile(Version version, Library lib) {
-        VersionSetting vs = profile.getVersionSetting(version.getId());
-        File self = super.getLibraryFile(version, lib);
-        if (Settings.instance().isCommonDirectoryDisabled() || self.exists())
-            return self;
-        else
-            return new File(Settings.instance().getCommonDirectory(), "libraries/" + lib.getPath());
+    public File getRunDirectory(String id) {
+        switch (getGameDirectoryType(id)) {
+            case VERSION_FOLDER:
+                return getVersionRoot(id);
+            case ROOT_FOLDER:
+                return super.getRunDirectory(id);
+            case CUSTOM:
+                File dir = new File(getVersionSetting(id).getGameDir());
+                if (!FileUtils.isValidPath(dir)) return getVersionRoot(id);
+                return dir;
+            default:
+                throw new Error();
+        }
    }

-
    @Override
    protected void refreshVersionsImpl() {
-        versionSettings.clear();
+        localVersionSettings.clear();
        super.refreshVersionsImpl();
-        versions.keySet().forEach(this::loadVersionSetting);
+        versions.keySet().forEach(this::loadLocalVersionSetting);
+        versions.keySet().forEach(version -> {
+            if (isModpack(version)) {
+                specializeVersionSetting(version);
+            }
+        });

        try {
            File file = new File(getBaseDirectory(), "launcher_profiles.json");
@@ -105,31 +108,74 @@ public class HMCLGameRepository extends DefaultGameRepository {
        }
    }

-    @Override
-    public void refreshVersions() {
-        EventBus.EVENT_BUS.fireEvent(new RefreshingVersionsEvent(this));
-        refreshVersionsImpl();
-        EventBus.EVENT_BUS.fireEvent(new RefreshedVersionsEvent(this));
-    }
-
    public void changeDirectory(File newDirectory) {
        setBaseDirectory(newDirectory);
        refreshVersionsAsync().start();
    }

-    private File getVersionSettingFile(String id) {
+    private void clean(File directory) throws IOException {
+        FileUtils.deleteDirectory(new File(directory, "crash-reports"));
+        FileUtils.deleteDirectory(new File(directory, "logs"));
+    }
+
+    public void clean(String id) throws IOException {
+        clean(getBaseDirectory());
+        clean(getRunDirectory(id));
+    }
+
+    public void duplicateVersion(String srcId, String dstId, boolean copySaves) throws IOException {
+        File srcDir = getVersionRoot(srcId);
+        File dstDir = getVersionRoot(dstId);
+
+        if (dstDir.exists()) throw new IOException("Version exists");
+        FileUtils.copyDirectory(srcDir.toPath(), dstDir.toPath());
+        if (Files.exists(dstDir.toPath().resolve(srcId + ".jar"))) {
+            Files.move(dstDir.toPath().resolve(srcId + ".jar"), dstDir.toPath().resolve(dstId + ".jar"));
+        }
+        Files.move(dstDir.toPath().resolve(srcId + ".json"), dstDir.toPath().resolve(dstId + ".json"));
+        VersionSetting oldVersionSetting = getVersionSetting(srcId).clone();
+        GameDirectoryType originalGameDirType = oldVersionSetting.getGameDirType();
+        oldVersionSetting.setUsesGlobal(false);
+        oldVersionSetting.setGameDirType(GameDirectoryType.VERSION_FOLDER);
+        VersionSetting newVersionSetting = initLocalVersionSetting(dstId, oldVersionSetting);
+        saveVersionSetting(dstId);
+
+        File srcGameDir = getRunDirectory(srcId);
+        File dstGameDir = getRunDirectory(dstId);
+
+        List<String> blackList = new ArrayList<>(Arrays.asList(
+                "regex:(.*?)\\.log",
+                "usernamecache.json", "usercache.json", // Minecraft
+                "launcher_profiles.json", "launcher.pack.lzma", // Minecraft Launcher
+                "backup", "pack.json", "launcher.jar", "cache", // HMCL
+                ".curseclient", // Curse
+                ".fabric", ".mixin.out", // Fabric
+                "jars", "logs", "versions", "assets", "libraries", "crash-reports", "NVIDIA", "AMD", "screenshots", "natives", "native", "$native", "server-resource-packs", // Minecraft
+                "downloads", // Curse
+                "asm", "backups", "TCNodeTracker", "CustomDISkins", "data", "CustomSkinLoader/caches" // Mods
+        ));
+        blackList.add(srcId + ".jar");
+        blackList.add(srcId + ".json");
+        if (!copySaves)
+            blackList.add("saves");
+
+        if (originalGameDirType != GameDirectoryType.VERSION_FOLDER)
+            FileUtils.copyDirectory(srcGameDir.toPath(), dstGameDir.toPath(), path -> Modpack.acceptFile(path, blackList, null));
+    }
+
+    private File getLocalVersionSettingFile(String id) {
        return new File(getVersionRoot(id), "hmclversion.cfg");
    }

-    private void loadVersionSetting(String id) {
-        File file = getVersionSettingFile(id);
+    private void loadLocalVersionSetting(String id) {
+        File file = getLocalVersionSettingFile(id);
        if (file.exists())
            try {
                VersionSetting versionSetting = GSON.fromJson(FileUtils.readText(file), VersionSetting.class);
-                initVersionSetting(id, versionSetting);
+                initLocalVersionSetting(id, versionSetting);
            } catch (Exception ex) {
                // If [JsonParseException], [IOException] or [NullPointerException] happens, the json file is malformed and needed to be recreated.
-                initVersionSetting(id, new VersionSetting());
+                initLocalVersionSetting(id, new VersionSetting());
            }
    }

@@ -138,18 +184,18 @@ public class HMCLGameRepository extends DefaultGameRepository {
     * @param id the version id.
     * @return new version setting, null if given version does not exist.
     */
-    public VersionSetting createVersionSetting(String id) {
+    public VersionSetting createLocalVersionSetting(String id) {
        if (!hasVersion(id))
            return null;
-        if (versionSettings.containsKey(id))
-            return getVersionSetting(id);
+        if (localVersionSettings.containsKey(id))
+            return getLocalVersionSetting(id);
        else
-            return initVersionSetting(id, new VersionSetting());
+            return initLocalVersionSetting(id, new VersionSetting());
    }

-    private VersionSetting initVersionSetting(String id, VersionSetting vs) {
+    private VersionSetting initLocalVersionSetting(String id, VersionSetting vs) {
+        localVersionSettings.put(id, vs);
        vs.addPropertyChangedListener(a -> saveVersionSetting(id));
-        versionSettings.put(id, vs);
        return vs;
    }

@@ -158,30 +204,54 @@ public class HMCLGameRepository extends DefaultGameRepository {
     *
     * @param id version id
     *
-     * @return may return null if the id not exists
+     * @return corresponding version setting, null if the version has no its own version setting.
     */
-    public VersionSetting getVersionSetting(String id) {
-        if (!versionSettings.containsKey(id))
-            loadVersionSetting(id);
-        VersionSetting setting = versionSettings.get(id);
+    public VersionSetting getLocalVersionSetting(String id) {
+        if (!localVersionSettings.containsKey(id))
+            loadLocalVersionSetting(id);
+        VersionSetting setting = localVersionSettings.get(id);
        if (setting != null && isModpack(id))
-            setting.setGameDirType(EnumGameDirectory.VERSION_FOLDER);
+            setting.setGameDirType(GameDirectoryType.VERSION_FOLDER);
        return setting;
    }

-    public File getVersionIcon(String id) {
+    public VersionSetting getVersionSetting(String id) {
+        VersionSetting vs = getLocalVersionSetting(id);
+        if (vs == null || vs.isUsesGlobal()) {
+            profile.getGlobal().setGlobal(true); // always keep global.isGlobal = true
+            profile.getGlobal().setUsesGlobal(true);
+            return profile.getGlobal();
+        } else
+            return vs;
+    }
+
+    public File getVersionIconFile(String id) {
        return new File(getVersionRoot(id), "icon.png");
    }

+    public Image getVersionIconImage(String id) {
+        if (id == null || !isLoaded())
+            return newImage("/assets/img/grass.png");
+
+        Version version = getVersion(id).resolve(this);
+        File iconFile = getVersionIconFile(id);
+        if (iconFile.exists())
+            return new Image("file:" + iconFile.getAbsolutePath());
+        else if (LibraryAnalyzer.isModded(this, version))
+            return newImage("/assets/img/furnace.png");
+        else
+            return newImage("/assets/img/grass.png");
+    }
+
    public boolean saveVersionSetting(String id) {
-        if (!versionSettings.containsKey(id))
+        if (!localVersionSettings.containsKey(id))
            return false;
-        File file = getVersionSettingFile(id);
+        File file = getLocalVersionSettingFile(id);
        if (!FileUtils.makeDirectory(file.getAbsoluteFile().getParentFile()))
            return false;

        try {
-            FileUtils.writeText(file, GSON.toJson(versionSettings.get(id)));
+            FileUtils.writeText(file, GSON.toJson(localVersionSettings.get(id)));
            return true;
        } catch (IOException e) {
            Logging.LOG.log(Level.SEVERE, "Unable to save version setting of " + id, e);
@@ -189,10 +259,81 @@ public class HMCLGameRepository extends DefaultGameRepository {
        }
    }

+    /**
+     * Make version use self version settings instead of the global one.
+     * @param id the version id.
+     * @return specialized version setting, null if given version does not exist.
+     */
+    public VersionSetting specializeVersionSetting(String id) {
+        VersionSetting vs = getLocalVersionSetting(id);
+        if (vs == null)
+            vs = createLocalVersionSetting(id);
+        if (vs == null)
+            return null;
+        vs.setUsesGlobal(false);
+        return vs;
+    }
+
+    public void globalizeVersionSetting(String id) {
+        VersionSetting vs = getLocalVersionSetting(id);
+        if (vs != null)
+            vs.setUsesGlobal(true);
+    }
+
    public boolean forbidsVersion(String id) {
        return FORBIDDEN.contains(id);
    }

+    public LaunchOptions getLaunchOptions(String version, File gameDir, boolean checkJava) throws InterruptedException {
+        VersionSetting vs = getVersionSetting(version);
+
+        JavaVersion javaVersion = Optional.ofNullable(vs.getJavaVersion(checkJava)).orElse(JavaVersion.fromCurrentEnvironment());
+        LaunchOptions.Builder builder = new LaunchOptions.Builder()
+                .setGameDir(gameDir)
+                .setJava(javaVersion)
+                .setVersionName(Metadata.TITLE)
+                .setVersionType(Metadata.TITLE)
+                .setProfileName(Metadata.TITLE)
+                .setGameArguments(StringUtils.tokenize(vs.getMinecraftArgs()))
+                .setJavaArguments(StringUtils.tokenize(vs.getJavaArgs()))
+                .setMaxMemory(vs.getMaxMemory())
+                .setMinMemory(vs.getMinMemory())
+                .setMetaspace(Lang.toIntOrNull(vs.getPermSize()))
+                .setWidth(vs.getWidth())
+                .setHeight(vs.getHeight())
+                .setFullscreen(vs.isFullscreen())
+                .setServerIp(vs.getServerIp())
+                .setWrapper(vs.getWrapper())
+                .setPrecalledCommand(vs.getPreLaunchCommand())
+                .setNoGeneratedJVMArgs(vs.isNoJVMArgs())
+                .setNativesDirType(vs.getNativesDirType())
+                .setNativesDir(vs.getNativesDir());
+        if (config().hasProxy()) {
+            builder.setProxy(ProxyManager.getProxy());
+            if (config().hasProxyAuth()) {
+                builder.setProxyUser(config().getProxyUser());
+                builder.setProxyPass(config().getProxyPass());
+            }
+        }
+
+        File json = getModpackConfiguration(version);
+        if (json.exists()) {
+            try {
+                String jsonText = FileUtils.readText(json);
+                ModpackConfiguration<?> modpackConfiguration = JsonUtils.GSON.fromJson(jsonText, ModpackConfiguration.class);
+                if (McbbsModpackLocalInstallTask.MODPACK_TYPE.equals(modpackConfiguration.getType())) {
+                    ModpackConfiguration<McbbsModpackManifest> config = JsonUtils.GSON.fromJson(FileUtils.readText(json), new TypeToken<ModpackConfiguration<McbbsModpackManifest>>() {
+                    }.getType());
+                    config.getManifest().injectLaunchOptions(builder);
+                }
+            } catch (IOException | JsonParseException e) {
+                e.printStackTrace();
+            }
+        }
+
+        return builder.create();
+    }
+
    @Override
    public File getModpackConfiguration(String version) {
        return new File(getVersionRoot(version), "modpack.cfg");
@@ -206,8 +347,22 @@ public class HMCLGameRepository extends DefaultGameRepository {
        beingModpackVersions.remove(id);
    }

-    private static final Gson GSON = new GsonBuilder().setPrettyPrinting()
-            .registerTypeAdapter(VersionSetting.class, VersionSetting.Serializer.INSTANCE)
+    public void markVersionLaunchedAbnormally(String id) {
+        try {
+            Files.createFile(getVersionRoot(id).toPath().resolve(".abnormal"));
+        } catch (IOException ignored) {
+        }
+    }
+
+    public boolean unmarkVersionLaunchedAbnormally(String id) {
+        File file = new File(getVersionRoot(id), ".abnormal");
+        boolean result = file.isFile();
+        file.delete();
+        return result;
+    }
+
+    private static final Gson GSON = new GsonBuilder()
+            .setPrettyPrinting()
            .create();

    private static final HashSet<String> FORBIDDEN = new HashSet<>(Arrays.asList("modpack", "minecraftinstance", "manifest"));
@@ -1,80 +0,0 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
- */
-package org.jackhuang.hmcl.game;
-
-import org.jackhuang.hmcl.mod.Modpack;
-import org.jackhuang.hmcl.task.Task;
-import org.jackhuang.hmcl.util.Constants;
-import org.jackhuang.hmcl.util.Logging;
-import org.jackhuang.hmcl.util.Zipper;
-
-import java.io.File;
-import java.util.ArrayList;
-import java.util.List;
-
-/**
- * Export the game to a mod pack file.
- */
-public class HMCLModpackExportTask extends Task {
-    private final DefaultGameRepository repository;
-    private final String version;
-    private final List<String> whitelist;
-    private final Modpack modpack;
-    private final File output;
-
-    /**
-     * @param output  mod pack file.
-     * @param version to locate version.json
-     */
-    public HMCLModpackExportTask(DefaultGameRepository repository, String version, List<String> whitelist, Modpack modpack, File output) {
-        this.repository = repository;
-        this.version = version;
-        this.whitelist = whitelist;
-        this.modpack = modpack;
-        this.output = output;
-
-        onDone().register(event -> {
-            if (event.isFailed()) output.delete();
-        });
-    }
-
-    @Override
-    public void execute() throws Exception {
-        ArrayList<String> blackList = new ArrayList<>(HMCLModpackManager.MODPACK_BLACK_LIST);
-        blackList.add(version + ".jar");
-        blackList.add(version + ".json");
-        Logging.LOG.info("Compressing game files without some files in blacklist, including files or directories: usernamecache.json, asm, logs, backups, versions, assets, usercache.json, libraries, crash-reports, launcher_profiles.json, NVIDIA, TCNodeTracker");
-        try (Zipper zip = new Zipper(output.toPath())) {
-            zip.putDirectory(repository.getRunDirectory(version).toPath(), "minecraft", path -> {
-                for (String s : blackList)
-                    if (path.equals(s))
-                        return false;
-                for (String s : whitelist)
-                    if (path.equals(s))
-                        return true;
-                return false;
-            });
-
-            Version mv = repository.getResolvedVersion(version);
-            String gameVersion = GameVersion.minecraftVersion(repository.getVersionJar(version))
-                    .orElseThrow(() ->  new IllegalStateException("Cannot parse the version of " + version));
-            zip.putTextFile(Constants.GSON.toJson(mv.setJar(gameVersion)), "minecraft/pack.json"); // Making "jar" to gameVersion is to be compatible with old HMCL.
-            zip.putTextFile(Constants.GSON.toJson(modpack.setGameVersion(gameVersion)), "modpack.json"); // Newer HMCL only reads 'gameVersion' field.
-        }
-    }
-}
@@ -1,7 +1,7 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
@@ -13,40 +13,42 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl.game;

 import com.google.gson.JsonParseException;
 import com.google.gson.reflect.TypeToken;
-import org.jackhuang.hmcl.download.DependencyManager;
-import org.jackhuang.hmcl.download.game.VersionJsonSaveTask;
+import org.jackhuang.hmcl.download.DefaultDependencyManager;
+import org.jackhuang.hmcl.download.LibraryAnalyzer;
 import org.jackhuang.hmcl.mod.MinecraftInstanceTask;
 import org.jackhuang.hmcl.mod.Modpack;
 import org.jackhuang.hmcl.mod.ModpackConfiguration;
 import org.jackhuang.hmcl.mod.ModpackInstallTask;
 import org.jackhuang.hmcl.setting.Profile;
 import org.jackhuang.hmcl.task.Task;
-import org.jackhuang.hmcl.util.CompressingUtils;
-import org.jackhuang.hmcl.util.Constants;
-import org.jackhuang.hmcl.util.FileUtils;
+import org.jackhuang.hmcl.util.gson.JsonUtils;
+import org.jackhuang.hmcl.util.io.CompressingUtils;
+import org.jackhuang.hmcl.util.io.FileUtils;

 import java.io.File;
 import java.io.IOException;
 import java.util.LinkedList;
 import java.util.List;
-import java.util.Objects;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;

-public final class HMCLModpackInstallTask extends Task {
+public final class HMCLModpackInstallTask extends Task<Void> {
    private final File zipFile;
    private final String name;
    private final HMCLGameRepository repository;
+    private final DefaultDependencyManager dependency;
    private final Modpack modpack;
-    private final List<Task> dependencies = new LinkedList<>();
-    private final List<Task> dependents = new LinkedList<>();
+    private final List<Task<?>> dependencies = new LinkedList<>();
+    private final List<Task<?>> dependents = new LinkedList<>();

    public HMCLModpackInstallTask(Profile profile, File zipFile, Modpack modpack, String name) {
-        DependencyManager dependency = profile.getDependency();
+        dependency = profile.getDependency();
        repository = profile.getRepository();
        this.zipFile = zipFile;
        this.name = name;
@@ -66,7 +68,7 @@ public final class HMCLModpackInstallTask extends Task {
        ModpackConfiguration<Modpack> config = null;
        try {
            if (json.exists()) {
-                config = Constants.GSON.fromJson(FileUtils.readText(json), new TypeToken<ModpackConfiguration<Modpack>>() {
+                config = JsonUtils.GSON.fromJson(FileUtils.readText(json), new TypeToken<ModpackConfiguration<Modpack>>() {
                }.getType());

                if (!MODPACK_TYPE.equals(config.getType()))
@@ -74,25 +76,43 @@ public final class HMCLModpackInstallTask extends Task {
            }
        } catch (JsonParseException | IOException ignore) {
        }
-        dependents.add(new ModpackInstallTask<>(zipFile, run, "/minecraft", it -> !"pack.json".equals(it), config));
+        dependents.add(new ModpackInstallTask<>(zipFile, run, modpack.getEncoding(), "/minecraft", it -> !"pack.json".equals(it), config));
+        dependents.add(new MinecraftInstanceTask<>(zipFile, modpack.getEncoding(), "/minecraft", modpack, MODPACK_TYPE, modpack.getName(), modpack.getVersion(), repository.getModpackConfiguration(name)).withStage("hmcl.modpack"));
    }

    @Override
-    public List<Task> getDependencies() {
+    public List<Task<?>> getDependencies() {
        return dependencies;
    }

    @Override
-    public List<Task> getDependents() {
+    public List<Task<?>> getDependents() {
        return dependents;
    }

    @Override
    public void execute() throws Exception {
        String json = CompressingUtils.readTextZipEntry(zipFile, "minecraft/pack.json");
-        Version version = Constants.GSON.fromJson(json, Version.class).setId(name).setJar(null);
-        dependencies.add(new VersionJsonSaveTask(repository, version));
-        dependencies.add(new MinecraftInstanceTask<>(zipFile, "/minecraft", modpack, MODPACK_TYPE, repository.getModpackConfiguration(name)));
+        Version originalVersion = JsonUtils.GSON.fromJson(json, Version.class).setId(name).setJar(null);
+        LibraryAnalyzer analyzer = LibraryAnalyzer.analyze(originalVersion);
+        Task<Version> libraryTask = Task.supplyAsync(() -> originalVersion);
+        // reinstall libraries
+        // libraries of Forge and OptiFine should be obtained by installation.
+        for (LibraryAnalyzer.LibraryMark mark : analyzer) {
+            if (LibraryAnalyzer.LibraryType.MINECRAFT.getPatchId().equals(mark.getLibraryId()))
+                continue;
+            libraryTask = libraryTask.thenComposeAsync(version -> dependency.installLibraryAsync(modpack.getGameVersion(), version, mark.getLibraryId(), mark.getLibraryVersion()));
+        }
+
+        dependencies.add(libraryTask.thenComposeAsync(repository::saveAsync));
+    }
+
+    @Override
+    public List<String> getStages() {
+        return Stream.concat(
+                dependents.stream().flatMap(task -> task.getStages().stream()),
+                Stream.of("hmcl.modpack")
+        ).collect(Collectors.toList());
    }

    public static final String MODPACK_TYPE = "HMCL";
@@ -1,7 +1,7 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
@@ -13,76 +13,40 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl.game;

 import com.google.gson.JsonParseException;
 import org.jackhuang.hmcl.mod.Modpack;
-import org.jackhuang.hmcl.util.CompressingUtils;
-import org.jackhuang.hmcl.util.JsonUtils;
-import org.jackhuang.hmcl.util.Lang;
 import org.jackhuang.hmcl.util.StringUtils;
+import org.jackhuang.hmcl.util.gson.JsonUtils;
+import org.jackhuang.hmcl.util.io.CompressingUtils;

-import java.io.File;
 import java.io.IOException;
-import java.util.List;
+import java.nio.charset.Charset;
+import java.nio.file.Path;

 /**
 * @author huangyuhui
 */
 public final class HMCLModpackManager {
-
-    public static final List<String> MODPACK_BLACK_LIST = Lang.immutableListOf(
-            "usernamecache.json", "usercache.json", // Minecraft
-            "launcher_profiles.json", "launcher.pack.lzma", // Minecraft Launcher
-            "pack.json", "launcher.jar", "hmclmc.log", // HMCL
-            "manifest.json", "minecraftinstance.json", ".curseclient", // Curse
-            "minetweaker.log", // Mods
-            "jars", "logs", "versions", "assets", "libraries", "crash-reports", "NVIDIA", "AMD", "screenshots", "natives", "native", "$native", "server-resource-packs", // Minecraft
-            "downloads", // Curse
-            "asm", "backups", "TCNodeTracker", "CustomDISkins", "data" // Mods
-    );
-    public static final List<String> MODPACK_SUGGESTED_BLACK_LIST = Lang.immutableListOf(
-            "fonts", // BetterFonts
-            "saves", "servers.dat", "options.txt", // Minecraft
-            "blueprints" /* BuildCraft */,
-            "optionsof.txt" /* OptiFine */,
-            "journeymap" /* JourneyMap */,
-            "optionsshaders.txt",
-            "mods/VoxelMods");
-
-    public static ModAdviser.ModSuggestion suggestMod(String fileName, boolean isDirectory) {
-        if (match(MODPACK_BLACK_LIST, fileName, isDirectory))
-            return ModAdviser.ModSuggestion.HIDDEN;
-        if (match(MODPACK_SUGGESTED_BLACK_LIST, fileName, isDirectory))
-            return ModAdviser.ModSuggestion.NORMAL;
-        else
-            return ModAdviser.ModSuggestion.SUGGESTED;
-    }
-
-    private static boolean match(List<String> l, String fileName, boolean isDirectory) {
-        for (String s : l)
-            if (isDirectory) {
-                if (fileName.startsWith(s + "/"))
-                    return true;
-            } else if (fileName.equals(s))
-                return true;
-        return false;
+    private HMCLModpackManager() {
    }

    /**
     * Read the manifest in a HMCL modpack.
     *
-     * @param file a HMCL modpack file.
-     * @throws IOException if the file is not a valid zip file.
-     * @throws JsonParseException if the manifest.json is missing or malformed.
+     * @param file     a HMCL modpack file.
+     * @param encoding encoding of modpack zip file.
     * @return the manifest of HMCL modpack.
+     * @throws IOException        if the file is not a valid zip file.
+     * @throws JsonParseException if the manifest.json is missing or malformed.
     */
-    public static Modpack readHMCLModpackManifest(File file) throws IOException, JsonParseException {
-        String manifestJson = CompressingUtils.readTextZipEntry(file, "modpack.json");
-        Modpack manifest = JsonUtils.fromNonNullJson(manifestJson, Modpack.class);
-        String gameJson = CompressingUtils.readTextZipEntry(file, "minecraft/pack.json");
+    public static Modpack readHMCLModpackManifest(Path file, Charset encoding) throws IOException, JsonParseException {
+        String manifestJson = CompressingUtils.readTextZipEntry(file, "modpack.json", encoding);
+        Modpack manifest = JsonUtils.fromNonNullJson(manifestJson, Modpack.class).setEncoding(encoding);
+        String gameJson = CompressingUtils.readTextZipEntry(file, "minecraft/pack.json", encoding);
        Version game = JsonUtils.fromNonNullJson(gameJson, Version.class);
        if (game.getJar() == null)
            if (StringUtils.isBlank(manifest.getVersion()))
@@ -1,7 +1,7 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
@@ -13,7 +13,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl.game;

@@ -1,7 +1,7 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
@@ -13,180 +13,225 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl.game;

 import javafx.application.Platform;
+import javafx.stage.Stage;
 import org.jackhuang.hmcl.Launcher;
-import org.jackhuang.hmcl.auth.Account;
-import org.jackhuang.hmcl.auth.AuthInfo;
-import org.jackhuang.hmcl.auth.AuthenticationException;
-import org.jackhuang.hmcl.auth.CredentialExpiredException;
+import org.jackhuang.hmcl.auth.*;
+import org.jackhuang.hmcl.auth.authlibinjector.AuthlibInjectorDownloadException;
 import org.jackhuang.hmcl.download.DefaultDependencyManager;
+import org.jackhuang.hmcl.download.LibraryAnalyzer;
 import org.jackhuang.hmcl.download.MaintainTask;
+import org.jackhuang.hmcl.download.game.GameAssetIndexDownloadTask;
+import org.jackhuang.hmcl.download.game.GameVerificationFixTask;
 import org.jackhuang.hmcl.download.game.LibraryDownloadException;
-import org.jackhuang.hmcl.launch.*;
-import org.jackhuang.hmcl.mod.CurseCompletionException;
-import org.jackhuang.hmcl.mod.CurseCompletionTask;
+import org.jackhuang.hmcl.download.java.JavaRepository;
+import org.jackhuang.hmcl.launch.NotDecompressingNativesException;
+import org.jackhuang.hmcl.launch.PermissionException;
+import org.jackhuang.hmcl.launch.ProcessCreationException;
+import org.jackhuang.hmcl.launch.ProcessListener;
 import org.jackhuang.hmcl.mod.ModpackConfiguration;
+import org.jackhuang.hmcl.mod.curse.CurseCompletionException;
+import org.jackhuang.hmcl.mod.curse.CurseCompletionTask;
+import org.jackhuang.hmcl.mod.curse.CurseInstallTask;
+import org.jackhuang.hmcl.mod.mcbbs.McbbsModpackCompletionTask;
+import org.jackhuang.hmcl.mod.mcbbs.McbbsModpackLocalInstallTask;
+import org.jackhuang.hmcl.mod.server.ServerModpackCompletionTask;
+import org.jackhuang.hmcl.mod.server.ServerModpackLocalInstallTask;
 import org.jackhuang.hmcl.setting.LauncherVisibility;
 import org.jackhuang.hmcl.setting.Profile;
-import org.jackhuang.hmcl.setting.Settings;
 import org.jackhuang.hmcl.setting.VersionSetting;
 import org.jackhuang.hmcl.task.*;
 import org.jackhuang.hmcl.ui.Controllers;
 import org.jackhuang.hmcl.ui.DialogController;
 import org.jackhuang.hmcl.ui.LogWindow;
 import org.jackhuang.hmcl.ui.construct.DialogCloseEvent;
-import org.jackhuang.hmcl.ui.construct.MessageBox;
+import org.jackhuang.hmcl.ui.construct.MessageDialogPane.MessageType;
 import org.jackhuang.hmcl.ui.construct.TaskExecutorDialogPane;
 import org.jackhuang.hmcl.util.*;
+import org.jackhuang.hmcl.util.gson.UUIDTypeAdapter;
+import org.jackhuang.hmcl.util.i18n.I18n;
+import org.jackhuang.hmcl.util.io.ResponseCodeException;
+import org.jackhuang.hmcl.util.platform.*;
+import org.jackhuang.hmcl.util.versioning.VersionNumber;

 import java.io.File;
+import java.io.FileNotFoundException;
 import java.io.IOException;
+import java.net.SocketTimeoutException;
+import java.net.URL;
 import java.util.*;
+import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.ConcurrentLinkedQueue;
 import java.util.concurrent.CountDownLatch;
-import java.util.concurrent.atomic.AtomicInteger;
+import java.util.concurrent.RejectedExecutionException;
+import java.util.logging.Level;

+import static org.jackhuang.hmcl.setting.ConfigHolder.config;
 import static org.jackhuang.hmcl.util.Lang.mapOf;
+import static org.jackhuang.hmcl.util.Logging.LOG;
 import static org.jackhuang.hmcl.util.Pair.pair;
 import static org.jackhuang.hmcl.util.i18n.I18n.i18n;

 public final class LauncherHelper {
-    public static final LauncherHelper INSTANCE = new LauncherHelper();
-    private LauncherHelper(){}

-    public static final Queue<ManagedProcess> PROCESSES = new ConcurrentLinkedQueue<>();
+    private final Profile profile;
+    private final Account account;
+    private final String selectedVersion;
+    private File scriptFile;
+    private final VersionSetting setting;
+    private LauncherVisibility launcherVisibility;
+    private boolean showLogs;
+
+    public LauncherHelper(Profile profile, Account account, String selectedVersion) {
+        this.profile = Objects.requireNonNull(profile);
+        this.account = Objects.requireNonNull(account);
+        this.selectedVersion = Objects.requireNonNull(selectedVersion);
+        this.setting = profile.getVersionSetting(selectedVersion);
+        this.launcherVisibility = setting.getLauncherVisibility();
+        this.showLogs = setting.isShowLogs();
+        this.launchingStepsPane.setTitle(i18n("version.launch"));
+    }
+
    private final TaskExecutorDialogPane launchingStepsPane = new TaskExecutorDialogPane(it -> {});

-    public void launch(Profile profile, Account account, String selectedVersion, File scriptFile) {
-        if (account == null)
-            throw new IllegalArgumentException("No account");
+    public void setTestMode() {
+        launcherVisibility = LauncherVisibility.KEEP;
+        showLogs = true;
+    }

+    public void launch() {
        Logging.LOG.info("Launching game version: " + selectedVersion);

        GameRepository repository = profile.getRepository();
-
        Version version = repository.getResolvedVersion(selectedVersion);
-        VersionSetting setting = profile.getVersionSetting(selectedVersion);

        Platform.runLater(() -> {
            try {
                checkGameState(profile, setting, version, () -> {
                    Controllers.dialog(launchingStepsPane);
-                    Schedulers.newThread().schedule(() -> launch0(profile, account, selectedVersion, scriptFile));
+                    Schedulers.defaultScheduler().execute(this::launch0);
                });
-            } catch (InterruptedException ignore) {
+            } catch (InterruptedException | RejectedExecutionException ignore) {
            }
        });
    }

-    private void launch0(Profile profile, Account account, String selectedVersion, File scriptFile) {
+    public void makeLaunchScript(File scriptFile) {
+        this.scriptFile = Objects.requireNonNull(scriptFile);
+
+        launch();
+    }
+
+    private void launch0() {
        HMCLGameRepository repository = profile.getRepository();
        DefaultDependencyManager dependencyManager = profile.getDependency();
-        Version version = MaintainTask.maintain(repository.getResolvedVersion(selectedVersion));
-        VersionSetting setting = profile.getVersionSetting(selectedVersion);
+        Version version = MaintainTask.maintain(repository, repository.getResolvedVersion(selectedVersion));
        Optional<String> gameVersion = GameVersion.minecraftVersion(repository.getVersionJar(version));
+        boolean integrityCheck = repository.unmarkVersionLaunchedAbnormally(selectedVersion);
+        CountDownLatch launchingLatch = new CountDownLatch(1);

-        TaskExecutor executor = Task.of(Schedulers.javafx(), () -> emitStatus(LoadingState.DEPENDENCIES))
-                .then(variables -> {
-                    if (setting.isNotCheckGame())
-                        return null;
-                    else
-                        return dependencyManager.checkGameCompletionAsync(version);
+        TaskExecutor executor = dependencyManager.checkPatchCompletionAsync(repository.getVersion(selectedVersion), integrityCheck)
+                .thenComposeAsync(Task.allOf(
+                        Task.composeAsync(() -> {
+                            if (setting.isNotCheckGame())
+                                return null;
+                            else
+                                return dependencyManager.checkGameCompletionAsync(version, integrityCheck);
+                        }), Task.composeAsync(() -> {
+                            try {
+                                ModpackConfiguration<?> configuration = ModpackHelper.readModpackConfiguration(repository.getModpackConfiguration(selectedVersion));
+                                if (CurseInstallTask.MODPACK_TYPE.equals(configuration.getType()))
+                                    return new CurseCompletionTask(dependencyManager, selectedVersion);
+                                else if (ServerModpackLocalInstallTask.MODPACK_TYPE.equals(configuration.getType()))
+                                    return new ServerModpackCompletionTask(dependencyManager, selectedVersion);
+                                else if (McbbsModpackLocalInstallTask.MODPACK_TYPE.equals(configuration.getType()))
+                                    return new McbbsModpackCompletionTask(dependencyManager, selectedVersion);
+                                else
+                                    return null;
+                            } catch (IOException e) {
+                                return null;
+                            }
+                        }))).withStage("launch.state.dependencies")
+                .thenComposeAsync(() -> {
+                    return gameVersion.map(s -> new GameVerificationFixTask(dependencyManager, s, version)).orElse(null);
                })
-                .then(Task.of(Schedulers.javafx(), () -> emitStatus(LoadingState.MODS)))
-                .then(var -> {
+                .thenComposeAsync(Task.supplyAsync(() -> {
                    try {
-                        ModpackConfiguration<?> configuration = ModpackHelper.readModpackConfiguration(repository.getModpackConfiguration(selectedVersion));
-                        if ("Curse".equals(configuration.getType()))
-                            return new CurseCompletionTask(dependencyManager, selectedVersion);
-                        else
-                            return null;
-                    } catch (IOException e) {
-                        return null;
-                    }
-                })
-                .then(Task.of(Schedulers.javafx(), () -> emitStatus(LoadingState.LOGGING_IN)))
-                .then(Task.of(i18n("account.methods"), variables -> {
-                    try {
-                        variables.set("account", account.logIn());
+                        return account.logIn();
                    } catch (CredentialExpiredException e) {
-                        variables.set("account", DialogController.logIn(account));
+                        LOG.info("Credential has expired: " + e);
+                        return DialogController.logIn(account);
                    } catch (AuthenticationException e) {
-                        variables.set("account",
-                                account.playOffline().orElseThrow(() -> e));
+                        LOG.warning("Authentication failed, try playing offline: " + e);
+                        return account.playOffline().orElseThrow(() -> e);
                    }
-                }))
-                .then(Task.of(Schedulers.javafx(), () -> emitStatus(LoadingState.LAUNCHING)))
-                .then(Task.of(variables -> {
-                    variables.set("launcher", new HMCLGameLauncher(
+                }).withStage("launch.state.logging_in"))
+                .thenComposeAsync(authInfo -> Task.supplyAsync(() -> {
+                    return new HMCLGameLauncher(
                            repository,
-                            selectedVersion,
-                            variables.get("account"),
-                            setting.toLaunchOptions(profile.getGameDir()),
-                            setting.getLauncherVisibility() == LauncherVisibility.CLOSE
+                            version.getPatches().isEmpty() ? repository.getResolvedVersion(selectedVersion) : version,
+                            authInfo,
+                            repository.getLaunchOptions(selectedVersion, profile.getGameDir(), !setting.isNotCheckJVM()),
+                            launcherVisibility == LauncherVisibility.CLOSE
                                    ? null // Unnecessary to start listening to game process output when close launcher immediately after game launched.
-                                    : new HMCLProcessListener(variables.get("account"), setting, gameVersion.isPresent())
-                    ));
-                }))
-                .then(variables -> {
-                    DefaultLauncher launcher = variables.get("launcher");
+                                    : new HMCLProcessListener(repository, selectedVersion, authInfo, launchingLatch, gameVersion.isPresent())
+                    );
+                }).thenComposeAsync(launcher -> { // launcher is prev task's result
                    if (scriptFile == null) {
-                        return new LaunchTask<>(launcher::launch).setName(i18n("version.launch"));
+                        return Task.supplyAsync(launcher::launch);
                    } else {
-                        return new LaunchTask<>(() -> {
+                        return Task.supplyAsync(() -> {
                            launcher.makeLaunchScript(scriptFile);
                            return null;
-                        }).setName(i18n("version.launch_script"));
+                        });
                    }
-                })
-                .then(Task.of(variables -> {
+                }).thenAcceptAsync(process -> { // process is LaunchTask's result
                    if (scriptFile == null) {
-                        ManagedProcess process = variables.get(LaunchTask.LAUNCH_ID);
                        PROCESSES.add(process);
-                        if (setting.getLauncherVisibility() == LauncherVisibility.CLOSE)
+                        if (launcherVisibility == LauncherVisibility.CLOSE)
                            Launcher.stopApplication();
                        else
                            launchingStepsPane.setCancel(it -> {
                                process.stop();
                                it.fireEvent(new DialogCloseEvent());
                            });
-                    } else
+                    } else {
                        Platform.runLater(() -> {
                            launchingStepsPane.fireEvent(new DialogCloseEvent());
                            Controllers.dialog(i18n("version.launch_script.success", scriptFile.getAbsolutePath()));
                        });
-
-                }))
+                    }
+                }).thenRunAsync(() -> {
+                    launchingLatch.await();
+                }).withStage("launch.state.waiting_launching"))
+                .withStagesHint(Lang.immutableListOf(
+                        "launch.state.dependencies",
+                        "launch.state.logging_in",
+                        "launch.state.waiting_launching"))
                .executor();
-
-        launchingStepsPane.setExecutor(executor);
+        launchingStepsPane.setExecutor(executor, false);
        executor.addTaskListener(new TaskListener() {
-            final AtomicInteger finished = new AtomicInteger(0);
-
-            @Override
-            public void onFinished(Task task) {
-                finished.incrementAndGet();
-                int runningTasks = executor.getRunningTasks();
-                Platform.runLater(() -> launchingStepsPane.setProgress(1.0 * finished.get() / runningTasks));
-            }

            @Override
            public void onStop(boolean success, TaskExecutor executor) {
-                if (!success && !Controllers.isStopped()) {
-                    Platform.runLater(() -> {
-                        // Check if the application has stopped
-                        // because onStop will be invoked if tasks fail when the executor service shut down.
-                        if (!Controllers.isStopped()) {
-                            launchingStepsPane.fireEvent(new DialogCloseEvent());
-                            Exception ex = executor.getLastException();
+                Platform.runLater(() -> {
+                    // Check if the application has stopped
+                    // because onStop will be invoked if tasks fail when the executor service shut down.
+                    if (!Controllers.isStopped()) {
+                        launchingStepsPane.fireEvent(new DialogCloseEvent());
+                        if (!success) {
+                            Exception ex = executor.getException();
                            if (ex != null) {
                                String message;
                                if (ex instanceof CurseCompletionException) {
-                                    message = i18n("modpack.type.curse.error");
+                                    if (ex.getCause() instanceof FileNotFoundException)
+                                        message = i18n("modpack.type.curse.not_found");
+                                    else
+                                        message = i18n("modpack.type.curse.error");
                                } else if (ex instanceof PermissionException) {
                                    message = i18n("launch.failed.executable_permission");
                                } else if (ex instanceof ProcessCreationException) {
@@ -194,18 +239,57 @@ public final class LauncherHelper {
                                } else if (ex instanceof NotDecompressingNativesException) {
                                    message = i18n("launch.failed.decompressing_natives") + ex.getLocalizedMessage();
                                } else if (ex instanceof LibraryDownloadException) {
-                                    message = i18n("launch.failed.download_library", ((LibraryDownloadException) ex).getLibrary().getName()) + "\n" + StringUtils.getStackTrace(ex.getCause());
+                                    message = i18n("launch.failed.download_library", ((LibraryDownloadException) ex).getLibrary().getName()) + "\n";
+                                    if (ex.getCause() instanceof ResponseCodeException) {
+                                        ResponseCodeException rce = (ResponseCodeException) ex.getCause();
+                                        int responseCode = rce.getResponseCode();
+                                        URL url = rce.getUrl();
+                                        if (responseCode == 404)
+                                            message += i18n("download.code.404", url);
+                                        else
+                                            message += i18n("download.failed", url, responseCode);
+                                    } else {
+                                        message += StringUtils.getStackTrace(ex.getCause());
+                                    }
+                                } else if (ex instanceof DownloadException) {
+                                    URL url = ((DownloadException) ex).getUrl();
+                                    if (ex.getCause() instanceof SocketTimeoutException) {
+                                        message = i18n("install.failed.downloading.timeout", url);
+                                    } else if (ex.getCause() instanceof ResponseCodeException) {
+                                        ResponseCodeException responseCodeException = (ResponseCodeException) ex.getCause();
+                                        if (I18n.hasKey("download.code." + responseCodeException.getResponseCode())) {
+                                            message = i18n("download.code." + responseCodeException.getResponseCode(), url);
+                                        } else {
+                                            message = i18n("install.failed.downloading.detail", url) + "\n" + StringUtils.getStackTrace(ex.getCause());
+                                        }
+                                    } else {
+                                        message = i18n("install.failed.downloading.detail", url) + "\n" + StringUtils.getStackTrace(ex.getCause());
+                                    }
+                                } else if (ex instanceof GameAssetIndexDownloadTask.GameAssetIndexMalformedException) {
+                                    message = i18n("assets.index.malformed");
+                                } else if (ex instanceof AuthlibInjectorDownloadException) {
+                                    message = i18n("account.failed.injector_download_failure");
+                                } else if (ex instanceof CharacterDeletedException) {
+                                    message = i18n("account.failed.character_deleted");
+                                } else if (ex instanceof ResponseCodeException) {
+                                    ResponseCodeException rce = (ResponseCodeException) ex;
+                                    int responseCode = rce.getResponseCode();
+                                    URL url = rce.getUrl();
+                                    if (responseCode == 404)
+                                        message = i18n("download.code.404", url);
+                                    else
+                                        message = i18n("download.failed", url, responseCode);
                                } else {
                                    message = StringUtils.getStackTrace(ex);
                                }
                                Controllers.dialog(message,
                                        scriptFile == null ? i18n("launch.failed") : i18n("version.launch_script.failed"),
-                                        MessageBox.ERROR_MESSAGE);
+                                        MessageType.ERROR);
                            }
                        }
-                    });
-                }
-                launchingStepsPane.setExecutor(null);
+                    }
+                    launchingStepsPane.setExecutor(null);
+                });
            }
        });

@@ -213,107 +297,220 @@ public final class LauncherHelper {
    }

    private static void checkGameState(Profile profile, VersionSetting setting, Version version, Runnable onAccept) throws InterruptedException {
+        if (setting.isNotCheckJVM()) {
+            onAccept.run();
+            return;
+        }
+
        boolean flag = false;
+        boolean java8required = false;
+        boolean newJavaRequired = false;

        // Without onAccept called, the launching operation will be terminated.

        VersionNumber gameVersion = VersionNumber.asVersion(GameVersion.minecraftVersion(profile.getRepository().getVersionJar(version)).orElse("Unknown"));
        JavaVersion java = setting.getJavaVersion();
        if (java == null) {
-            Controllers.dialog(i18n("launch.wrong_javadir"), i18n("message.warning"), MessageBox.WARNING_MESSAGE, onAccept);
+            Controllers.dialog(i18n("launch.wrong_javadir"), i18n("message.warning"), MessageType.WARNING, onAccept);
            setting.setJava(null);
            setting.setDefaultJavaPath(null);
            java = JavaVersion.fromCurrentEnvironment();
            flag = true;
        }

+        if (!flag && version.getJavaVersion() != null) {
+            if (java.getParsedVersion() < version.getJavaVersion().getMajorVersion()) {
+                Optional<JavaVersion> acceptableJava = JavaVersion.getJavas().stream()
+                        .filter(javaVersion -> javaVersion.getParsedVersion() >= version.getJavaVersion().getMajorVersion())
+                        .max(Comparator.comparing(JavaVersion::getVersionNumber));
+                if (acceptableJava.isPresent()) {
+                    setting.setJavaVersion(acceptableJava.get());
+                } else {
+                    Controllers.confirm(i18n("launch.advice.require_newer_java_version", gameVersion.toString(), version.getJavaVersion().getMajorVersion()), i18n("message.warning"), () -> {
+                        downloadJava(version.getJavaVersion(), profile)
+                                .thenAcceptAsync(x -> {
+                                    try {
+                                        Optional<JavaVersion> newAcceptableJava = JavaVersion.getJavas().stream()
+                                                .filter(javaVersion -> javaVersion.getParsedVersion() >= version.getJavaVersion().getMajorVersion())
+                                                .max(Comparator.comparing(JavaVersion::getVersionNumber));
+                                        newAcceptableJava.ifPresent(setting::setJavaVersion);
+                                    } catch (InterruptedException e) {
+                                        LOG.log(Level.SEVERE, "Cannot list javas", e);
+                                    }
+                                }, Platform::runLater).thenAccept(x -> onAccept.run());
+                    }, null);
+                    flag = true;
+                }
+            }
+        }
+
        // Game later than 1.7.2 accepts Java 8.
        if (!flag && java.getParsedVersion() < JavaVersion.JAVA_8 && gameVersion.compareTo(VersionNumber.asVersion("1.7.2")) > 0) {
-            Optional<JavaVersion> java8 = JavaVersion.getJREs().stream()
+            Optional<JavaVersion> java8 = JavaVersion.getJavas().stream()
                    .filter(javaVersion -> javaVersion.getParsedVersion() >= JavaVersion.JAVA_8)
                    .max(Comparator.comparing(JavaVersion::getVersionNumber));
            if (java8.isPresent()) {
+                newJavaRequired = true;
                setting.setJavaVersion(java8.get());
            } else {
                if (gameVersion.compareTo(VersionNumber.asVersion("1.13")) >= 0) {
                    // Minecraft 1.13 and later versions only support Java 8 or later.
                    // Terminate launching operation.
-                    Controllers.dialog(i18n("launch.advice.java8_1_13"), i18n("message.error"), MessageBox.ERROR_MESSAGE, null);
+                    Controllers.dialog(i18n("launch.advice.java8_1_13"), i18n("message.error"), MessageType.ERROR, null);
                } else {
                    // Most mods require Java 8 or later version.
-                    Controllers.dialog(i18n("launch.advice.newer_java"), i18n("message.warning"), MessageBox.WARNING_MESSAGE, onAccept);
+                    Controllers.dialog(i18n("launch.advice.newer_java"), i18n("message.warning"), MessageType.WARNING, onAccept);
                }
                flag = true;
            }
        }

-        // LaunchWrapper will crash because of assuming the system class loader is an instance of URLClassLoader.
-        // cpw has claimed that he will make MinecraftForge of 1.13 and later versions able to run on Java 9.
-        if (!flag && java.getParsedVersion() >= JavaVersion.JAVA_9 && gameVersion.compareTo(VersionNumber.asVersion("1.13")) < 0 && version.getMainClass().contains("launchwrapper")) {
-            Optional<JavaVersion> java8 = JavaVersion.getJREs().stream().filter(javaVersion -> javaVersion.getParsedVersion() == JavaVersion.JAVA_8).findAny();
+        // LaunchWrapper 1.12 will crash because of assuming the system class loader is an instance of URLClassLoader.
+        if (!flag && java.getParsedVersion() >= JavaVersion.JAVA_9
+                && LibraryAnalyzer.LAUNCH_WRAPPER_MAIN.equals(version.getMainClass())
+                && version.getLibraries().stream()
+                .filter(library -> "launchwrapper".equals(library.getArtifactId()))
+                .anyMatch(library -> VersionNumber.asVersion(library.getVersion()).compareTo(VersionNumber.asVersion("1.13")) < 0)) {
+            Optional<JavaVersion> java8 = JavaVersion.getJavas().stream().filter(javaVersion -> javaVersion.getParsedVersion() == JavaVersion.JAVA_8).findAny();
            if (java8.isPresent()) {
+                java8required = true;
                setting.setJavaVersion(java8.get());
+                Controllers.dialog(i18n("launch.advice.java9") + "\n" + i18n("launch.advice.corrected"), i18n("message.info"), MessageType.INFORMATION, onAccept);
+                flag = true;
            } else {
-                Controllers.dialog(i18n("launch.advice.java9"), i18n("message.error"), MessageBox.ERROR_MESSAGE, null);
+                Controllers.dialog(i18n("launch.advice.java9") + "\n" + i18n("launch.advice.uncorrected"), i18n("message.error"), MessageType.ERROR, null);
                flag = true;
            }
        }

        // Minecraft 1.13 may crash when generating world on Java 8 earlier than 1.8.0_51
-        VersionNumber JAVA_8 = VersionNumber.asVersion("1.8.0.51");
+        VersionNumber JAVA_8 = VersionNumber.asVersion("1.8.0_51");
        if (!flag && gameVersion.compareTo(VersionNumber.asVersion("1.13")) >= 0 && java.getParsedVersion() == JavaVersion.JAVA_8 && java.getVersionNumber().compareTo(JAVA_8) < 0) {
-            Optional<JavaVersion> java8 = JavaVersion.getJREs().stream()
+            Optional<JavaVersion> java8 = JavaVersion.getJavas().stream()
                    .filter(javaVersion -> javaVersion.getVersionNumber().compareTo(JAVA_8) >= 0)
                    .max(Comparator.comparing(JavaVersion::getVersionNumber));
            if (java8.isPresent()) {
+                newJavaRequired = true;
                setting.setJavaVersion(java8.get());
            } else {
-                Controllers.dialog(i18n("launch.advice.java8_51_1_13"), i18n("message.warning"), MessageBox.WARNING_MESSAGE, onAccept);
+                Controllers.dialog(i18n("launch.advice.java8_51_1_13"), i18n("message.warning"), MessageType.WARNING, onAccept);
                flag = true;
            }
        }

-        if (!flag && java.getPlatform() == org.jackhuang.hmcl.util.Platform.BIT_32 &&
-                org.jackhuang.hmcl.util.Platform.IS_64_BIT) {
-            Controllers.dialog(i18n("launch.advice.different_platform"), i18n("message.error"), MessageBox.ERROR_MESSAGE, onAccept);
-            flag = true;
+        if (!flag && java.getPlatform() == org.jackhuang.hmcl.util.platform.Platform.BIT_32 &&
+                Architecture.CURRENT.getPlatform() == org.jackhuang.hmcl.util.platform.Platform.BIT_64) {
+            final JavaVersion java32 = java;
+
+            // First find if same java version but whose platform is 64-bit installed.
+            Optional<JavaVersion> java64 = JavaVersion.getJavas().stream()
+                    .filter(javaVersion -> javaVersion.getPlatform() == org.jackhuang.hmcl.util.platform.Platform.PLATFORM)
+                    .filter(javaVersion -> javaVersion.getParsedVersion() == java32.getParsedVersion())
+                    .max(Comparator.comparing(JavaVersion::getVersionNumber));
+
+            if (!java64.isPresent()) {
+                final boolean java8requiredFinal = java8required, newJavaRequiredFinal = newJavaRequired;
+
+                // Then find if other java version which satisfies requirements installed.
+                java64 = JavaVersion.getJavas().stream()
+                        .filter(javaVersion -> javaVersion.getPlatform() == org.jackhuang.hmcl.util.platform.Platform.PLATFORM)
+                        .filter(javaVersion -> {
+                            if (java8requiredFinal) return javaVersion.getParsedVersion() == JavaVersion.JAVA_8;
+                            if (newJavaRequiredFinal) return javaVersion.getParsedVersion() >= JavaVersion.JAVA_8;
+                            return true;
+                        })
+                        .max(Comparator.comparing(JavaVersion::getVersionNumber));
+            }
+
+            if (java64.isPresent()) {
+                setting.setJavaVersion(java64.get());
+            } else {
+                Controllers.dialog(i18n("launch.advice.different_platform"), i18n("message.error"), MessageType.ERROR, onAccept);
+                flag = true;
+            }
        }

-        if (!flag && java.getPlatform() == org.jackhuang.hmcl.util.Platform.BIT_32 &&
+        // 32-bit JVM cannot make use of too much memory.
+        if (!flag && java.getPlatform() == org.jackhuang.hmcl.util.platform.Platform.BIT_32 &&
                setting.getMaxMemory() > 1.5 * 1024) {
            // 1.5 * 1024 is an inaccurate number.
            // Actual memory limit depends on operating system and memory.
-            Controllers.dialog(i18n("launch.advice.too_large_memory_for_32bit"), i18n("message.error"), MessageBox.ERROR_MESSAGE, onAccept);
+            Controllers.confirm(i18n("launch.advice.too_large_memory_for_32bit"), i18n("message.error"), onAccept, null);
            flag = true;
        }
-        
+
+        // Cannot allocate too much memory exceeding free space.
        if (!flag && OperatingSystem.TOTAL_MEMORY > 0 && OperatingSystem.TOTAL_MEMORY < setting.getMaxMemory()) {
-            Controllers.dialog(i18n("launch.advice.not_enough_space", OperatingSystem.TOTAL_MEMORY), i18n("message.error"), MessageBox.ERROR_MESSAGE, onAccept);
+            Controllers.confirm(i18n("launch.advice.not_enough_space", OperatingSystem.TOTAL_MEMORY), i18n("message.error"), onAccept, null);
            flag = true;
        }

+        // Forge 2760~2773 will crash game with LiteLoader.
+        if (!flag) {
+            boolean hasForge2760 = version.getLibraries().stream().filter(it -> it.is("net.minecraftforge", "forge"))
+                    .anyMatch(it ->
+                            VersionNumber.VERSION_COMPARATOR.compare("1.12.2-14.23.5.2760", it.getVersion()) <= 0 &&
+                                    VersionNumber.VERSION_COMPARATOR.compare(it.getVersion(), "1.12.2-14.23.5.2773") < 0);
+            boolean hasLiteLoader = version.getLibraries().stream().anyMatch(it -> it.is("com.mumfrey", "liteloader"));
+            if (hasForge2760 && hasLiteLoader && gameVersion.compareTo(VersionNumber.asVersion("1.12.2")) == 0) {
+                Controllers.confirm(i18n("launch.advice.forge2760_liteloader"), i18n("message.error"), onAccept, null);
+                flag = true;
+            }
+        }
+
+        // OptiFine 1.14.4 is not compatible with Forge 28.2.2 and later versions.
+        if (!flag) {
+            boolean hasForge28_2_2 = version.getLibraries().stream().filter(it -> it.is("net.minecraftforge", "forge"))
+                    .anyMatch(it ->
+                            VersionNumber.VERSION_COMPARATOR.compare("1.14.4-28.2.2", it.getVersion()) <= 0);
+            boolean hasOptiFine = version.getLibraries().stream().anyMatch(it -> it.is("optifine", "OptiFine"));
+            if (hasForge28_2_2 && hasOptiFine && gameVersion.compareTo(VersionNumber.asVersion("1.14.4")) == 0) {
+                Controllers.confirm(i18n("launch.advice.forge28_2_2_optifine"), i18n("message.error"), onAccept, null);
+                flag = true;
+            }
+        }
+
        if (!flag)
            onAccept.run();
    }

-    public static void stopManagedProcesses() {
-        while (!PROCESSES.isEmpty())
-            Optional.ofNullable(PROCESSES.poll()).ifPresent(ManagedProcess::stop);
+    private static CompletableFuture<Void> downloadJava(GameJavaVersion javaVersion, Profile profile) {
+        CompletableFuture<Void> future = new CompletableFuture<>();
+
+        TaskExecutorDialogPane javaDownloadingPane = new TaskExecutorDialogPane(it -> {
+        });
+
+        TaskExecutor executor = JavaRepository.downloadJava(javaVersion,
+                profile.getDependency().getDownloadProvider()).executor(false);
+        executor.addTaskListener(new TaskListener() {
+            @Override
+            public void onStop(boolean success, TaskExecutor executor) {
+                super.onStop(success, executor);
+                Platform.runLater(() -> {
+                    if (!success) {
+                        future.completeExceptionally(Optional.ofNullable(executor.getException()).orElseGet(InterruptedException::new));
+                    } else {
+                        future.complete(null);
+                    }
+                });
+            }
+        });
+
+        javaDownloadingPane.setExecutor(executor, true);
+        Controllers.dialog(javaDownloadingPane);
+        executor.start();
+
+
+        return future;
    }

-    public void emitStatus(LoadingState state) {
-        if (state == LoadingState.DONE) {
-            launchingStepsPane.fireEvent(new DialogCloseEvent());
-        }
-
-        launchingStepsPane.setTitle(state.getLocalizedMessage());
-        launchingStepsPane.setSubtitle((state.ordinal() + 1) + " / " + LoadingState.values().length);
-    }
-
-    private void checkExit(LauncherVisibility v) {
-        switch (v) {
+    private void checkExit() {
+        switch (launcherVisibility) {
            case HIDE_AND_REOPEN:
-                Platform.runLater(Controllers.getStage()::show);
+                Platform.runLater(() -> {
+                    Optional.ofNullable(Controllers.getStage())
+                            .ifPresent(Stage::show);
+                });
                break;
            case KEEP:
                // No operations here
@@ -331,26 +528,6 @@ public final class LauncherHelper {
        }
    }

-    private static class LaunchTask<T> extends TaskResult<T> {
-        private final ExceptionalSupplier<T, Exception> supplier;
-
-        public LaunchTask(ExceptionalSupplier<T, Exception> supplier) {
-            this.supplier = supplier;
-        }
-
-        @Override
-        public void execute() throws Exception {
-            setResult(supplier.get());
-        }
-
-        @Override
-        public String getId() {
-            return LAUNCH_ID;
-        }
-
-        static final String LAUNCH_ID = "launch";
-    }
-
    /**
     * The managed process listener.
     * Guarantee that one [JavaProcess], one [HMCLProcessListener].
@@ -358,18 +535,21 @@ public final class LauncherHelper {
     */
    class HMCLProcessListener implements ProcessListener {

-        private final VersionSetting setting;
+        private final HMCLGameRepository repository;
+        private final String version;
        private final Map<String, String> forbiddenTokens;
-        private final LauncherVisibility visibility;
        private ManagedProcess process;
        private boolean lwjgl;
        private LogWindow logWindow;
        private final boolean detectWindow;
        private final LinkedList<Pair<String, Log4jLevel>> logs;
-        private final CountDownLatch latch = new CountDownLatch(1);
+        private final CountDownLatch logWindowLatch = new CountDownLatch(1);
+        private final CountDownLatch launchingLatch;

-        public HMCLProcessListener(AuthInfo authInfo, VersionSetting setting, boolean detectWindow) {
-            this.setting = setting;
+        public HMCLProcessListener(HMCLGameRepository repository, String version, AuthInfo authInfo, CountDownLatch launchingLatch, boolean detectWindow) {
+            this.repository = repository;
+            this.version = version;
+            this.launchingLatch = launchingLatch;
            this.detectWindow = detectWindow;

            if (authInfo == null)
@@ -381,7 +561,6 @@ public final class LauncherHelper {
                        pair(authInfo.getUsername(), "<player>")
                );

-            visibility = setting.getLauncherVisibility();
            logs = new LinkedList<>();
        }

@@ -389,96 +568,128 @@ public final class LauncherHelper {
        public void setProcess(ManagedProcess process) {
            this.process = process;

-            if (setting.isShowLogs())
+            String command = new CommandBuilder().addAll(process.getCommands()).toString();
+            for (Map.Entry<String, String> entry : forbiddenTokens.entrySet())
+                command = command.replace(entry.getKey(), entry.getValue());
+
+            LOG.info("Launched process: " + command);
+
+            if (showLogs)
                Platform.runLater(() -> {
                    logWindow = new LogWindow();
                    logWindow.show();
-                    latch.countDown();
+                    logWindowLatch.countDown();
                });
        }

+        private void finishLaunch() {
+            switch (launcherVisibility) {
+                case HIDE_AND_REOPEN:
+                    Platform.runLater(() -> {
+                        // If application was stopped and execution services did not finish termination,
+                        // these codes will be executed.
+                        if (Controllers.getStage() != null) {
+                            Controllers.getStage().hide();
+                            launchingLatch.countDown();
+                        }
+                    });
+                    break;
+                case CLOSE:
+                    // Never come to here.
+                    break;
+                case KEEP:
+                    Platform.runLater(launchingLatch::countDown);
+                    break;
+                case HIDE:
+                    launchingLatch.countDown();
+                    Platform.runLater(() -> {
+                        // If application was stopped and execution services did not finish termination,
+                        // these codes will be executed.
+                        if (Controllers.getStage() != null) {
+                            Controllers.getStage().close();
+                            Controllers.shutdown();
+                            Schedulers.shutdown();
+                        }
+                    });
+                    break;
+            }
+        }
+
        @Override
        public synchronized void onLog(String log, Log4jLevel level) {
            String newLog = log;
            for (Map.Entry<String, String> entry : forbiddenTokens.entrySet())
                newLog = newLog.replace(entry.getKey(), entry.getValue());
+            String filteredLog = newLog;

            if (level.lessOrEqual(Log4jLevel.ERROR))
-                System.err.print(log);
+                System.err.println(filteredLog);
            else
-                System.out.print(log);
+                System.out.println(filteredLog);

-            logs.add(pair(log, level));
-            if (logs.size() > Settings.instance().getLogLines())
+            logs.add(pair(filteredLog, level));
+            if (logs.size() > config().getLogLines())
                logs.removeFirst();

-            if (setting.isShowLogs()) {
+            if (showLogs) {
                try {
-                    latch.await();
-                    logWindow.waitForLoaded();
+                    logWindowLatch.await();
                } catch (InterruptedException e) {
                    Thread.currentThread().interrupt();
                    return;
                }

-                Platform.runLater(() -> logWindow.logLine(log, level));
+                Platform.runLater(() -> logWindow.logLine(filteredLog, level));
            }

-            if (!lwjgl && (log.contains("LWJGL Version: ") || !detectWindow)) {
+            if (!lwjgl && (filteredLog.toLowerCase().contains("lwjgl version") || filteredLog.toLowerCase().contains("lwjgl openal") || !detectWindow)) {
                lwjgl = true;
-                switch (visibility) {
-                    case HIDE_AND_REOPEN:
-                        Platform.runLater(() -> {
-                            Controllers.getStage().hide();
-                            emitStatus(LoadingState.DONE);
-                        });
-                        break;
-                    case CLOSE:
-                        // Never come to here.
-                        break;
-                    case KEEP:
-                        Platform.runLater(() -> {
-                            emitStatus(LoadingState.DONE);
-                        });
-                        break;
-                    case HIDE:
-                        Platform.runLater(() -> {
-                            Controllers.getStage().close();
-                            emitStatus(LoadingState.DONE);
-                        });
-                        break;
-                }
+                finishLaunch();
            }
        }

        @Override
        public void onExit(int exitCode, ExitType exitType) {
+            launchingLatch.countDown();
+
            if (exitType == ExitType.INTERRUPTED)
                return;

-            if (exitType != ExitType.NORMAL && logWindow == null)
+            // Game crashed before opening the game window.
+            if (!lwjgl) finishLaunch();
+
+            if (exitType != ExitType.NORMAL) {
+                repository.markVersionLaunchedAbnormally(version);
                Platform.runLater(() -> {
-                    logWindow = new LogWindow();
+                    if (logWindow == null) {
+                        logWindow = new LogWindow();

-                    switch (exitType) {
-                        case JVM_ERROR:
-                            logWindow.setTitle(i18n("launch.failed.cannot_create_jvm"));
-                            break;
-                        case APPLICATION_ERROR:
-                            logWindow.setTitle(i18n("launch.failed.exited_abnormally"));
-                            break;
-                    }
+                        switch (exitType) {
+                            case JVM_ERROR:
+                                logWindow.setTitle(i18n("launch.failed.cannot_create_jvm"));
+                                break;
+                            case APPLICATION_ERROR:
+                                logWindow.setTitle(i18n("launch.failed.exited_abnormally"));
+                                break;
+                        }

-                    logWindow.show();
-                    logWindow.onDone.register(() -> {
                        logWindow.logLine("Command: " + new CommandBuilder().addAll(process.getCommands()).toString(), Log4jLevel.INFO);
                        for (Map.Entry<String, Log4jLevel> entry : logs)
                            logWindow.logLine(entry.getKey(), entry.getValue());
-                    });
-                });
+                    }

-            checkExit(visibility);
+                    logWindow.showGameCrashReport();
+                });
+            }
+
+            checkExit();
        }

    }
+
+    public static final Queue<ManagedProcess> PROCESSES = new ConcurrentLinkedQueue<>();
+    public static void stopManagedProcesses() {
+        while (!PROCESSES.isEmpty())
+            Optional.ofNullable(PROCESSES.poll()).ifPresent(ManagedProcess::stop);
+    }
 }
@@ -1,7 +1,7 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
@@ -13,7 +13,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl.game;

@@ -1,7 +1,7 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
@@ -13,49 +13,76 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl.game;

 import com.google.gson.JsonParseException;
 import com.google.gson.reflect.TypeToken;
 import org.jackhuang.hmcl.mod.*;
-import org.jackhuang.hmcl.setting.EnumGameDirectory;
+import org.jackhuang.hmcl.mod.curse.CurseCompletionException;
+import org.jackhuang.hmcl.mod.curse.CurseInstallTask;
+import org.jackhuang.hmcl.mod.curse.CurseManifest;
+import org.jackhuang.hmcl.mod.mcbbs.McbbsModpackLocalInstallTask;
+import org.jackhuang.hmcl.mod.mcbbs.McbbsModpackManifest;
+import org.jackhuang.hmcl.mod.multimc.MultiMCInstanceConfiguration;
+import org.jackhuang.hmcl.mod.multimc.MultiMCModpackInstallTask;
+import org.jackhuang.hmcl.mod.server.ServerModpackLocalInstallTask;
+import org.jackhuang.hmcl.mod.server.ServerModpackManifest;
+import org.jackhuang.hmcl.mod.server.ServerModpackRemoteInstallTask;
 import org.jackhuang.hmcl.setting.Profile;
 import org.jackhuang.hmcl.setting.VersionSetting;
-import org.jackhuang.hmcl.task.FinalizedCallback;
+import org.jackhuang.hmcl.task.Schedulers;
 import org.jackhuang.hmcl.task.Task;
-import org.jackhuang.hmcl.util.Constants;
-import org.jackhuang.hmcl.util.FileUtils;
 import org.jackhuang.hmcl.util.Lang;
+import org.jackhuang.hmcl.util.function.ExceptionalConsumer;
+import org.jackhuang.hmcl.util.function.ExceptionalRunnable;
+import org.jackhuang.hmcl.util.gson.JsonUtils;
+import org.jackhuang.hmcl.util.io.FileUtils;

 import java.io.File;
 import java.io.FileNotFoundException;
 import java.io.IOException;
+import java.nio.charset.Charset;
+import java.nio.file.Path;
+import java.util.Objects;
 import java.util.Optional;

 public final class ModpackHelper {
    private ModpackHelper() {}

-    public static Modpack readModpackManifest(File file) throws UnsupportedModpackException {
+    public static Modpack readModpackManifest(Path file, Charset charset) throws UnsupportedModpackException {
        try {
-            return CurseManifest.readCurseForgeModpackManifest(file);
+            return McbbsModpackManifest.readManifest(file, charset);
+        } catch (Exception ignored) {
+            ignored.printStackTrace();
+            // ignore it, not a valid MCBBS modpack.
+        }
+
+        try {
+            return CurseManifest.readCurseForgeModpackManifest(file, charset);
        } catch (Exception e) {
            // ignore it, not a valid CurseForge modpack.
        }

        try {
-            return HMCLModpackManager.readHMCLModpackManifest(file);
+            return HMCLModpackManager.readHMCLModpackManifest(file, charset);
        } catch (Exception e) {
            // ignore it, not a valid HMCL modpack.
        }

        try {
-            return MultiMCInstanceConfiguration.readMultiMCModpackManifest(file);
+            return MultiMCInstanceConfiguration.readMultiMCModpackManifest(file, charset);
        } catch (Exception e) {
            // ignore it, not a valid MultiMC modpack.
        }

+        try {
+            return ServerModpackManifest.readManifest(file, charset);
+        } catch (Exception e) {
+            // ignore it, not a valid Server modpack.
+        }
+
        throw new UnsupportedModpackException(file.toString());
    }

@@ -64,7 +91,7 @@ public final class ModpackHelper {
            throw new FileNotFoundException(file.getPath());
        else
            try {
-                return Constants.GSON.fromJson(FileUtils.readText(file), new TypeToken<ModpackConfiguration<?>>() {
+                return JsonUtils.GSON.fromJson(FileUtils.readText(file), new TypeToken<ModpackConfiguration<?>>() {
                }.getType());
            } catch (JsonParseException e) {
                throw new IOException("Malformed modpack configuration");
@@ -82,51 +109,106 @@ public final class ModpackHelper {
            throw new UnsupportedModpackException();
    }

-    public static Task getInstallTask(Profile profile, File zipFile, String name, Modpack modpack) {
+    public static Task<Void> getInstallTask(Profile profile, ServerModpackManifest manifest, String name, Modpack modpack) {
        profile.getRepository().markVersionAsModpack(name);

-        FinalizedCallback finalizeTask = (variables, isDependentsSucceeded) -> {
-            if (isDependentsSucceeded) {
-                profile.getRepository().refreshVersions();
-                VersionSetting vs = profile.specializeVersionSetting(name);
-                profile.getRepository().undoMark(name);
-                if (vs != null)
-                    vs.setGameDirType(EnumGameDirectory.VERSION_FOLDER);
+        ExceptionalRunnable<?> success = () -> {
+            HMCLGameRepository repository = profile.getRepository();
+            repository.refreshVersions();
+            VersionSetting vs = repository.specializeVersionSetting(name);
+            repository.undoMark(name);
+            if (vs != null)
+                vs.setGameDirType(GameDirectoryType.VERSION_FOLDER);
+        };
+
+        ExceptionalConsumer<Exception, ?> failure = ex -> {
+            if (ex instanceof CurseCompletionException && !(ex.getCause() instanceof FileNotFoundException)) {
+                success.run();
+                // This is tolerable and we will not delete the game
+            }
+        };
+
+        return new ServerModpackRemoteInstallTask(profile.getDependency(), manifest, name)
+                .whenComplete(Schedulers.defaultScheduler(), success, failure);
+    }
+
+    public static Task<Void> getInstallTask(Profile profile, File zipFile, String name, Modpack modpack) {
+        profile.getRepository().markVersionAsModpack(name);
+
+        ExceptionalRunnable<?> success = () -> {
+            HMCLGameRepository repository = profile.getRepository();
+            repository.refreshVersions();
+            VersionSetting vs = repository.specializeVersionSetting(name);
+            repository.undoMark(name);
+            if (vs != null)
+                vs.setGameDirType(GameDirectoryType.VERSION_FOLDER);
+        };
+
+        ExceptionalConsumer<Exception, ?> failure = ex -> {
+            if (ex instanceof CurseCompletionException && !(ex.getCause() instanceof FileNotFoundException)) {
+                success.run();
+                // This is tolerable and we will not delete the game
            }
        };

        if (modpack.getManifest() instanceof CurseManifest)
-            return new CurseInstallTask(profile.getDependency(), zipFile, ((CurseManifest) modpack.getManifest()), name)
-                    .finalized(finalizeTask);
+            return new CurseInstallTask(profile.getDependency(), zipFile, modpack, ((CurseManifest) modpack.getManifest()), name)
+                    .whenComplete(Schedulers.defaultScheduler(), success, failure);
        else if (modpack.getManifest() instanceof HMCLModpackManifest)
            return new HMCLModpackInstallTask(profile, zipFile, modpack, name)
-                    .finalized(finalizeTask);
+                    .whenComplete(Schedulers.defaultScheduler(), success, failure);
        else if (modpack.getManifest() instanceof MultiMCInstanceConfiguration)
-            return new MultiMCModpackInstallTask(profile.getDependency(), zipFile, ((MultiMCInstanceConfiguration) modpack.getManifest()), name)
-                    .finalized(finalizeTask)
-                    .then(new MultiMCInstallVersionSettingTask(profile, ((MultiMCInstanceConfiguration) modpack.getManifest()), name));
-        else throw new IllegalStateException("Unrecognized modpack: " + modpack);
+            return new MultiMCModpackInstallTask(profile.getDependency(), zipFile, modpack, (MultiMCInstanceConfiguration) modpack.getManifest(), name)
+                    .whenComplete(Schedulers.defaultScheduler(), success, failure)
+                    .thenComposeAsync(createMultiMCPostInstallTask(profile, (MultiMCInstanceConfiguration) modpack.getManifest(), name));
+        else if (modpack.getManifest() instanceof ServerModpackManifest)
+            return new ServerModpackLocalInstallTask(profile.getDependency(), zipFile, modpack, (ServerModpackManifest) modpack.getManifest(), name)
+                    .whenComplete(Schedulers.defaultScheduler(), success, failure);
+        else if (modpack.getManifest() instanceof McbbsModpackManifest)
+            return new McbbsModpackLocalInstallTask(profile.getDependency(), zipFile, modpack, (McbbsModpackManifest) modpack.getManifest(), name)
+                    .whenComplete(Schedulers.defaultScheduler(), success, failure)
+                    .thenComposeAsync(createMcbbsPostInstallTask(profile, (McbbsModpackManifest) modpack.getManifest(), name));
+        else throw new IllegalArgumentException("Unrecognized modpack: " + modpack.getManifest());
    }

-    public static Task getUpdateTask(Profile profile, File zipFile, String name, ModpackConfiguration<?> configuration) throws UnsupportedModpackException, MismatchedModpackTypeException {
-        Modpack modpack = ModpackHelper.readModpackManifest(zipFile);
+    public static Task<Void> getUpdateTask(Profile profile, ServerModpackManifest manifest, Charset charset, String name, ModpackConfiguration<?> configuration) throws UnsupportedModpackException {
+        switch (configuration.getType()) {
+            case ServerModpackRemoteInstallTask.MODPACK_TYPE:
+                return new ModpackUpdateTask(profile.getRepository(), name, new ServerModpackRemoteInstallTask(profile.getDependency(), manifest, name));
+            default:
+                throw new UnsupportedModpackException();
+        }
+    }
+
+    public static Task<Void> getUpdateTask(Profile profile, File zipFile, Charset charset, String name, ModpackConfiguration<?> configuration) throws UnsupportedModpackException, MismatchedModpackTypeException {
+        Modpack modpack = ModpackHelper.readModpackManifest(zipFile.toPath(), charset);

        switch (configuration.getType()) {
            case CurseInstallTask.MODPACK_TYPE:
                if (!(modpack.getManifest() instanceof CurseManifest))
                    throw new MismatchedModpackTypeException(CurseInstallTask.MODPACK_TYPE, getManifestType(modpack.getManifest()));

-                return new CurseInstallTask(profile.getDependency(), zipFile, (CurseManifest) modpack.getManifest(), name);
+                return new ModpackUpdateTask(profile.getRepository(), name, new CurseInstallTask(profile.getDependency(), zipFile, modpack, (CurseManifest) modpack.getManifest(), name));
            case MultiMCModpackInstallTask.MODPACK_TYPE:
                if (!(modpack.getManifest() instanceof MultiMCInstanceConfiguration))
                    throw new MismatchedModpackTypeException(MultiMCModpackInstallTask.MODPACK_TYPE, getManifestType(modpack.getManifest()));

-                return new MultiMCModpackInstallTask(profile.getDependency(), zipFile, (MultiMCInstanceConfiguration) modpack.getManifest(), name);
+                return new ModpackUpdateTask(profile.getRepository(), name, new MultiMCModpackInstallTask(profile.getDependency(), zipFile, modpack, (MultiMCInstanceConfiguration) modpack.getManifest(), name));
            case HMCLModpackInstallTask.MODPACK_TYPE:
                if (!(modpack.getManifest() instanceof HMCLModpackManifest))
                    throw new MismatchedModpackTypeException(HMCLModpackInstallTask.MODPACK_TYPE, getManifestType(modpack.getManifest()));

-                return new HMCLModpackInstallTask(profile, zipFile, modpack, name);
+                return new ModpackUpdateTask(profile.getRepository(), name, new HMCLModpackInstallTask(profile, zipFile, modpack, name));
+            case McbbsModpackLocalInstallTask.MODPACK_TYPE:
+                if (!(modpack.getManifest() instanceof McbbsModpackManifest))
+                    throw new MismatchedModpackTypeException(McbbsModpackLocalInstallTask.MODPACK_TYPE, getManifestType(modpack.getManifest()));
+
+                return new ModpackUpdateTask(profile.getRepository(), name, new McbbsModpackLocalInstallTask(profile.getDependency(), zipFile, modpack, (McbbsModpackManifest) modpack.getManifest(), name));
+            case ServerModpackLocalInstallTask.MODPACK_TYPE:
+                if (!(modpack.getManifest() instanceof ServerModpackManifest))
+                    throw new MismatchedModpackTypeException(ServerModpackLocalInstallTask.MODPACK_TYPE, getManifestType(modpack.getManifest()));
+
+                return new ModpackUpdateTask(profile.getRepository(), name, new ServerModpackLocalInstallTask(profile.getDependency(), zipFile, modpack, (ServerModpackManifest) modpack.getManifest(), name));
            default:
                throw new UnsupportedModpackException();
        }
@@ -134,7 +216,7 @@ public final class ModpackHelper {

    public static void toVersionSetting(MultiMCInstanceConfiguration c, VersionSetting vs) {
        vs.setUsesGlobal(false);
-        vs.setGameDirType(EnumGameDirectory.VERSION_FOLDER);
+        vs.setGameDirType(GameDirectoryType.VERSION_FOLDER);

        if (c.isOverrideJavaLocation()) {
            vs.setJavaDir(Lang.nonNull(c.getJavaPath(), ""));
@@ -169,5 +251,18 @@ public final class ModpackHelper {
        }
    }

+    private static Task<Void> createMultiMCPostInstallTask(Profile profile, MultiMCInstanceConfiguration manifest, String version) {
+        return Task.runAsync(Schedulers.javafx(), () -> {
+            VersionSetting vs = Objects.requireNonNull(profile.getRepository().specializeVersionSetting(version));
+            ModpackHelper.toVersionSetting(manifest, vs);
+        });
+    }

+    private static Task<Void> createMcbbsPostInstallTask(Profile profile, McbbsModpackManifest manifest, String version) {
+        return Task.runAsync(Schedulers.javafx(), () -> {
+            VersionSetting vs = Objects.requireNonNull(profile.getRepository().specializeVersionSetting(version));
+            if (manifest.getLaunchInfo().getMinMemory() > vs.getMaxMemory())
+                vs.setMaxMemory(manifest.getLaunchInfo().getMinMemory());
+        });
+    }
 }
@@ -1,50 +0,0 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
- */
-package org.jackhuang.hmcl.game;
-
-import org.jackhuang.hmcl.mod.MultiMCInstanceConfiguration;
-import org.jackhuang.hmcl.setting.Profile;
-import org.jackhuang.hmcl.setting.VersionSetting;
-import org.jackhuang.hmcl.task.Scheduler;
-import org.jackhuang.hmcl.task.Schedulers;
-import org.jackhuang.hmcl.task.Task;
-
-import java.util.Objects;
-
-public final class MultiMCInstallVersionSettingTask extends Task {
-    private final Profile profile;
-    private final MultiMCInstanceConfiguration manifest;
-    private final String version;
-
-    public MultiMCInstallVersionSettingTask(Profile profile, MultiMCInstanceConfiguration manifest, String version) {
-        this.profile = profile;
-        this.manifest = manifest;
-        this.version = version;
-    }
-
-    @Override
-    public Scheduler getScheduler() {
-        return Schedulers.javafx();
-    }
-
-    @Override
-    public void execute() {
-        VersionSetting vs = Objects.requireNonNull(profile.specializeVersionSetting(version));
-        ModpackHelper.toVersionSetting(manifest, vs);
-    }
-}
@@ -0,0 +1,264 @@
+/*
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package org.jackhuang.hmcl.game;
+
+import javafx.beans.binding.Bindings;
+import javafx.beans.binding.ObjectBinding;
+import javafx.scene.image.Image;
+import javafx.scene.image.PixelWriter;
+import javafx.scene.image.WritableImage;
+import org.jackhuang.hmcl.Metadata;
+import org.jackhuang.hmcl.auth.Account;
+import org.jackhuang.hmcl.auth.ServerResponseMalformedException;
+import org.jackhuang.hmcl.auth.microsoft.MicrosoftAccount;
+import org.jackhuang.hmcl.auth.yggdrasil.*;
+import org.jackhuang.hmcl.task.FileDownloadTask;
+import org.jackhuang.hmcl.util.ResourceNotFoundError;
+import org.jackhuang.hmcl.util.StringUtils;
+import org.jackhuang.hmcl.util.javafx.BindingMapping;
+
+import javax.imageio.ImageIO;
+import java.awt.*;
+import java.awt.image.BufferedImage;
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URL;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.EnumMap;
+import java.util.Map;
+import java.util.Optional;
+import java.util.UUID;
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.ThreadPoolExecutor;
+import java.util.concurrent.TimeUnit;
+import java.util.logging.Level;
+
+import static java.util.Collections.emptyMap;
+import static java.util.Collections.singletonMap;
+import static java.util.Objects.requireNonNull;
+import static org.jackhuang.hmcl.util.Lang.threadPool;
+import static org.jackhuang.hmcl.util.Logging.LOG;
+
+/**
+ * @author yushijinhun
+ */
+public final class TexturesLoader {
+
+    private TexturesLoader() {
+    }
+
+    // ==== Texture Loading ====
+    public static class LoadedTexture {
+        private final BufferedImage image;
+        private final Map<String, String> metadata;
+
+        public LoadedTexture(BufferedImage image, Map<String, String> metadata) {
+            this.image = requireNonNull(image);
+            this.metadata = requireNonNull(metadata);
+        }
+
+        public BufferedImage getImage() {
+            return image;
+        }
+
+        public Map<String, String> getMetadata() {
+            return metadata;
+        }
+    }
+
+    private static final ThreadPoolExecutor POOL = threadPool("TexturesDownload", true, 2, 10, TimeUnit.SECONDS);
+    private static final Path TEXTURES_DIR = Metadata.MINECRAFT_DIRECTORY.resolve("assets").resolve("skins");
+
+    private static Path getTexturePath(Texture texture) {
+        String url = texture.getUrl();
+        int slash = url.lastIndexOf('/');
+        int dot = url.lastIndexOf('.');
+        if (dot < slash) {
+            dot = url.length();
+        }
+        String hash = url.substring(slash + 1, dot);
+        String prefix = hash.length() > 2 ? hash.substring(0, 2) : "xx";
+        return TEXTURES_DIR.resolve(prefix).resolve(hash);
+    }
+
+    public static LoadedTexture loadTexture(Texture texture) throws IOException {
+        if (StringUtils.isBlank(texture.getUrl())) {
+            throw new IOException("Texture url is empty");
+        }
+
+        Path file = getTexturePath(texture);
+        if (!Files.isRegularFile(file)) {
+            // download it
+            try {
+                new FileDownloadTask(new URL(texture.getUrl()), file.toFile()).run();
+                LOG.info("Texture downloaded: " + texture.getUrl());
+            } catch (Exception e) {
+                if (Files.isRegularFile(file)) {
+                    // concurrency conflict?
+                    LOG.log(Level.WARNING, "Failed to download texture " + texture.getUrl() + ", but the file is available", e);
+                } else {
+                    throw new IOException("Failed to download texture " + texture.getUrl());
+                }
+            }
+        }
+
+        BufferedImage img;
+        try (InputStream in = Files.newInputStream(file)) {
+            img = ImageIO.read(in);
+        }
+        if (img == null)
+            throw new IOException("Texture is malformed");
+
+        Map<String, String> metadata = texture.getMetadata();
+        if (metadata == null) {
+            metadata = emptyMap();
+        }
+        return new LoadedTexture(img, metadata);
+    }
+    // ====
+
+    // ==== Skins ====
+    private final static Map<TextureModel, LoadedTexture> DEFAULT_SKINS = new EnumMap<>(TextureModel.class);
+
+    static {
+        loadDefaultSkin("/assets/img/steve.png", TextureModel.STEVE);
+        loadDefaultSkin("/assets/img/alex.png", TextureModel.ALEX);
+    }
+
+    private static void loadDefaultSkin(String path, TextureModel model) {
+        try (InputStream in = ResourceNotFoundError.getResourceAsStream(path)) {
+            DEFAULT_SKINS.put(model, new LoadedTexture(ImageIO.read(in), singletonMap("model", model.modelName)));
+        } catch (Throwable e) {
+            throw new ResourceNotFoundError("Cannoot load default skin from " + path, e);
+        }
+    }
+
+    public static LoadedTexture getDefaultSkin(TextureModel model) {
+        return DEFAULT_SKINS.get(model);
+    }
+
+    public static ObjectBinding<LoadedTexture> skinBinding(YggdrasilService service, UUID uuid) {
+        LoadedTexture uuidFallback = getDefaultSkin(TextureModel.detectUUID(uuid));
+        return BindingMapping.of(service.getProfileRepository().binding(uuid))
+                .map(profile -> profile
+                        .flatMap(it -> {
+                            try {
+                                return YggdrasilService.getTextures(it);
+                            } catch (ServerResponseMalformedException e) {
+                                LOG.log(Level.WARNING, "Failed to parse texture payload", e);
+                                return Optional.empty();
+                            }
+                        })
+                        .flatMap(it -> Optional.ofNullable(it.get(TextureType.SKIN)))
+                        .filter(it -> StringUtils.isNotBlank(it.getUrl())))
+                .asyncMap(it -> {
+                    if (it.isPresent()) {
+                        Texture texture = it.get();
+                        return CompletableFuture.supplyAsync(() -> {
+                            try {
+                                return loadTexture(texture);
+                            } catch (IOException e) {
+                                LOG.log(Level.WARNING, "Failed to load texture " + texture.getUrl() + ", using fallback texture", e);
+                                return uuidFallback;
+                            }
+                        }, POOL);
+                    } else {
+                        return CompletableFuture.completedFuture(uuidFallback);
+                    }
+                }, uuidFallback);
+    }
+
+    public static ObjectBinding<LoadedTexture> skinBinding(Account account) {
+        LoadedTexture uuidFallback = getDefaultSkin(TextureModel.detectUUID(account.getUUID()));
+        return BindingMapping.of(account.getTextures())
+                .map(textures -> textures
+                        .flatMap(it -> Optional.ofNullable(it.get(TextureType.SKIN)))
+                        .filter(it -> StringUtils.isNotBlank(it.getUrl())))
+                .asyncMap(it -> {
+                    if (it.isPresent()) {
+                        Texture texture = it.get();
+                        return CompletableFuture.supplyAsync(() -> {
+                            try {
+                                return loadTexture(texture);
+                            } catch (IOException e) {
+                                LOG.log(Level.WARNING, "Failed to load texture " + texture.getUrl() + ", using fallback texture", e);
+                                return uuidFallback;
+                            }
+                        }, POOL);
+                    } else {
+                        return CompletableFuture.completedFuture(uuidFallback);
+                    }
+                }, uuidFallback);
+    }
+
+    // ====
+
+    // ==== Avatar ====
+    public static BufferedImage toAvatar(BufferedImage skin, int size) {
+        BufferedImage avatar = new BufferedImage(size, size, BufferedImage.TYPE_INT_ARGB);
+        Graphics2D g = avatar.createGraphics();
+
+        int scale = skin.getWidth() / 64;
+        int faceOffset = (int) Math.round(size / 18.0);
+        g.drawImage(skin,
+                faceOffset, faceOffset, size - faceOffset, size - faceOffset,
+                8 * scale, 8 * scale, 16 * scale, 16 * scale,
+                null);
+        g.drawImage(skin,
+                0, 0, size, size,
+                40 * scale, 8 * scale, 48 * scale, 16 * scale, null);
+
+        g.dispose();
+        return avatar;
+    }
+
+    public static ObjectBinding<Image> fxAvatarBinding(YggdrasilService service, UUID uuid, int size) {
+        return BindingMapping.of(skinBinding(service, uuid))
+                .map(it -> toAvatar(it.image, size))
+                .map(TexturesLoader::toFXImage);
+    }
+
+    public static ObjectBinding<Image> fxAvatarBinding(Account account, int size) {
+        if (account instanceof YggdrasilAccount || account instanceof MicrosoftAccount) {
+            return BindingMapping.of(skinBinding(account))
+                    .map(it -> toAvatar(it.image, size))
+                    .map(TexturesLoader::toFXImage);
+        } else {
+            return Bindings.createObjectBinding(
+                    () -> toFXImage(toAvatar(getDefaultSkin(TextureModel.detectUUID(account.getUUID())).image, size)));
+        }
+    }
+    // ====
+
+    // Based on https://stackoverflow.com/a/57552025
+    // Fix #874: Use it instead of SwingFXUtils.toFXImage
+    private static WritableImage toFXImage(BufferedImage image) {
+        WritableImage wr = new WritableImage(image.getWidth(), image.getHeight());
+        PixelWriter pw = wr.getPixelWriter();
+
+        final int iw = image.getWidth();
+        final int ih = image.getHeight();
+        for (int x = 0; x < iw; x++) {
+            for (int y = 0; y < ih; y++) {
+                pw.setArgb(x, y, image.getRGB(x, y));
+            }
+        }
+        return wr;
+    }
+}
@@ -1,6 +1,6 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
@@ -13,31 +13,41 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl.setting;

-import org.jackhuang.hmcl.Launcher;
-import org.jackhuang.hmcl.auth.Account;
-import org.jackhuang.hmcl.auth.AccountFactory;
-import org.jackhuang.hmcl.auth.authlibinjector.AuthlibInjectorAccount;
-import org.jackhuang.hmcl.auth.authlibinjector.AuthlibInjectorAccountFactory;
-import org.jackhuang.hmcl.auth.authlibinjector.AuthlibInjectorDownloader;
-import org.jackhuang.hmcl.auth.authlibinjector.AuthlibInjectorServer;
-import org.jackhuang.hmcl.auth.offline.OfflineAccount;
-import org.jackhuang.hmcl.auth.offline.OfflineAccountFactory;
-import org.jackhuang.hmcl.auth.yggdrasil.MojangYggdrasilProvider;
-import org.jackhuang.hmcl.auth.yggdrasil.YggdrasilAccount;
-import org.jackhuang.hmcl.auth.yggdrasil.YggdrasilAccountFactory;
-
 import javafx.beans.Observable;
 import javafx.beans.property.ObjectProperty;
 import javafx.beans.property.ReadOnlyListProperty;
 import javafx.beans.property.ReadOnlyListWrapper;
 import javafx.beans.property.SimpleObjectProperty;
 import javafx.collections.ObservableList;
+import org.jackhuang.hmcl.Metadata;
+import org.jackhuang.hmcl.auth.Account;
+import org.jackhuang.hmcl.auth.AccountFactory;
+import org.jackhuang.hmcl.auth.AuthenticationException;
+import org.jackhuang.hmcl.auth.authlibinjector.AuthlibInjectorAccount;
+import org.jackhuang.hmcl.auth.authlibinjector.AuthlibInjectorAccountFactory;
+import org.jackhuang.hmcl.auth.authlibinjector.AuthlibInjectorArtifactInfo;
+import org.jackhuang.hmcl.auth.authlibinjector.AuthlibInjectorArtifactProvider;
+import org.jackhuang.hmcl.auth.authlibinjector.AuthlibInjectorDownloader;
+import org.jackhuang.hmcl.auth.authlibinjector.AuthlibInjectorServer;
+import org.jackhuang.hmcl.auth.authlibinjector.SimpleAuthlibInjectorArtifactProvider;
+import org.jackhuang.hmcl.auth.microsoft.MicrosoftAccount;
+import org.jackhuang.hmcl.auth.microsoft.MicrosoftAccountFactory;
+import org.jackhuang.hmcl.auth.microsoft.MicrosoftService;
+import org.jackhuang.hmcl.auth.offline.OfflineAccount;
+import org.jackhuang.hmcl.auth.offline.OfflineAccountFactory;
+import org.jackhuang.hmcl.auth.yggdrasil.YggdrasilAccount;
+import org.jackhuang.hmcl.auth.yggdrasil.YggdrasilAccountFactory;
+import org.jackhuang.hmcl.task.Schedulers;
+import org.jackhuang.hmcl.ui.account.MicrosoftAccountLoginStage;

 import java.io.IOException;
+import java.nio.file.Paths;
+import java.util.HashMap;
+import java.util.List;
 import java.util.Map;
 import java.util.Optional;
 import java.util.logging.Level;
@@ -46,6 +56,7 @@ import static java.util.stream.Collectors.toList;
 import static javafx.collections.FXCollections.observableArrayList;
 import static org.jackhuang.hmcl.setting.ConfigHolder.config;
 import static org.jackhuang.hmcl.ui.FXUtils.onInvalidating;
+import static org.jackhuang.hmcl.util.Lang.immutableListOf;
 import static org.jackhuang.hmcl.util.Lang.mapOf;
 import static org.jackhuang.hmcl.util.Logging.LOG;
 import static org.jackhuang.hmcl.util.Pair.pair;
@@ -57,44 +68,65 @@ import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
 public final class Accounts {
    private Accounts() {}

+    private static final AuthlibInjectorArtifactProvider AUTHLIB_INJECTOR_DOWNLOADER = createAuthlibInjectorArtifactProvider();
+    private static void triggerAuthlibInjectorUpdateCheck() {
+        if (AUTHLIB_INJECTOR_DOWNLOADER instanceof AuthlibInjectorDownloader) {
+            Schedulers.io().execute(() -> {
+                try {
+                    ((AuthlibInjectorDownloader) AUTHLIB_INJECTOR_DOWNLOADER).checkUpdate();
+                } catch (IOException e) {
+                    LOG.log(Level.WARNING, "Failed to check update for authlib-injector", e);
+                }
+            });
+        }
+    }
+
    public static final OfflineAccountFactory FACTORY_OFFLINE = OfflineAccountFactory.INSTANCE;
-    public static final YggdrasilAccountFactory FACTORY_YGGDRASIL = new YggdrasilAccountFactory(MojangYggdrasilProvider.INSTANCE);
-    public static final AuthlibInjectorAccountFactory FACTORY_AUTHLIB_INJECTOR = new AuthlibInjectorAccountFactory(
-            new AuthlibInjectorDownloader(Launcher.HMCL_DIRECTORY.toPath(), () -> Settings.instance().getDownloadProvider())::getArtifactInfo,
-            Accounts::getOrCreateAuthlibInjectorServer);
+    public static final YggdrasilAccountFactory FACTORY_MOJANG = YggdrasilAccountFactory.MOJANG;
+    public static final AuthlibInjectorAccountFactory FACTORY_AUTHLIB_INJECTOR = new AuthlibInjectorAccountFactory(AUTHLIB_INJECTOR_DOWNLOADER, Accounts::getOrCreateAuthlibInjectorServer);
+    public static final MicrosoftAccountFactory FACTORY_MICROSOFT = new MicrosoftAccountFactory(new MicrosoftService(MicrosoftAccountLoginStage.INSTANCE));
+    public static final List<AccountFactory<?>> FACTORIES = immutableListOf(FACTORY_OFFLINE, FACTORY_MOJANG, FACTORY_AUTHLIB_INJECTOR, FACTORY_MICROSOFT);

-    private static final String TYPE_OFFLINE = "offline";
-    private static final String TYPE_YGGDRASIL_ACCOUNT = "yggdrasil";
-    private static final String TYPE_AUTHLIB_INJECTOR = "authlibInjector";
+    // ==== login type / account factory mapping ====
+    private static final Map<String, AccountFactory<?>> type2factory = new HashMap<>();
+    private static final Map<AccountFactory<?>, String> factory2type = new HashMap<>();
+    static {
+        type2factory.put("offline", FACTORY_OFFLINE);
+        type2factory.put("yggdrasil", FACTORY_MOJANG);
+        type2factory.put("authlibInjector", FACTORY_AUTHLIB_INJECTOR);
+        type2factory.put("microsoft", FACTORY_MICROSOFT);

-    private static Map<String, AccountFactory<?>> type2factory = mapOf(
-            pair(TYPE_OFFLINE, FACTORY_OFFLINE),
-            pair(TYPE_YGGDRASIL_ACCOUNT, FACTORY_YGGDRASIL),
-            pair(TYPE_AUTHLIB_INJECTOR, FACTORY_AUTHLIB_INJECTOR));
+        type2factory.forEach((type, factory) -> factory2type.put(factory, type));
+    }

-    private static String accountType(Account account) {
+    public static String getLoginType(AccountFactory<?> factory) {
+        return Optional.ofNullable(factory2type.get(factory))
+                .orElseThrow(() -> new IllegalArgumentException("Unrecognized account factory"));
+    }
+
+    public static AccountFactory<?> getAccountFactory(String loginType) {
+        return Optional.ofNullable(type2factory.get(loginType))
+                .orElseThrow(() -> new IllegalArgumentException("Unrecognized login type"));
+    }
+    // ====
+
+    public static AccountFactory<?> getAccountFactory(Account account) {
        if (account instanceof OfflineAccount)
-            return TYPE_OFFLINE;
+            return FACTORY_OFFLINE;
        else if (account instanceof AuthlibInjectorAccount)
-            return TYPE_AUTHLIB_INJECTOR;
+            return FACTORY_AUTHLIB_INJECTOR;
        else if (account instanceof YggdrasilAccount)
-            return TYPE_YGGDRASIL_ACCOUNT;
+            return FACTORY_MOJANG;
+        else if (account instanceof MicrosoftAccount)
+            return FACTORY_MICROSOFT;
        else
            throw new IllegalArgumentException("Failed to determine account type: " + account);
    }

-    public static AccountFactory<?> getAccountFactory(Account account) {
-        return type2factory.get(accountType(account));
-    }
-
-    static String accountId(Account account) {
-        return account.getUsername() + ":" + account.getCharacter();
-    }
-
    private static ObservableList<Account> accounts = observableArrayList(account -> new Observable[] { account });
-    private static ReadOnlyListProperty<Account> accountsWrapper = new ReadOnlyListWrapper<>(accounts);
+    private static ReadOnlyListWrapper<Account> accountsWrapper = new ReadOnlyListWrapper<>(Accounts.class, "accounts", accounts);

-    private static ObjectProperty<Account> selectedAccount = new SimpleObjectProperty<Account>() {
+    private static ObjectProperty<Account> selectedAccount = new SimpleObjectProperty<Account>(Accounts.class, "selectedAccount") {
        {
            accounts.addListener(onInvalidating(this::invalidated));
        }
@@ -125,7 +157,7 @@ public final class Accounts {
            // selection is valid, store it
            if (!initialized)
                return;
-            config().setSelectedAccount(selected == null ? "" : accountId(selected));
+            updateAccountStorages();
        }
    };

@@ -138,9 +170,12 @@ public final class Accounts {
        accounts.addListener(onInvalidating(Accounts::updateAccountStorages));
    }

-    static Map<Object, Object> getAccountStorage(Account account) {
+    private static Map<Object, Object> getAccountStorage(Account account) {
        Map<Object, Object> storage = account.toStorage();
-        storage.put("type", accountType(account));
+        storage.put("type", getLoginType(getAccountFactory(account)));
+        if (account == selectedAccount.get()) {
+            storage.put("selected", true);
+        }
        return storage;
    }

@@ -175,18 +210,42 @@ public final class Accounts {
                return;
            }
            accounts.add(account);
+
+            if (Boolean.TRUE.equals(storage.get("selected"))) {
+                selectedAccount.set(account);
+            }
        });

        initialized = true;

        config().getAuthlibInjectorServers().addListener(onInvalidating(Accounts::removeDanglingAuthlibInjectorAccounts));

-        // load selected account
-        selectedAccount.set(
-                accounts.stream()
-                        .filter(it -> accountId(it).equals(config().getSelectedAccount()))
-                        .findFirst()
-                        .orElse(null));
+        Account selected = selectedAccount.get();
+        if (selected != null) {
+            Schedulers.io().execute(() -> {
+                try {
+                    selected.logIn();
+                } catch (AuthenticationException e) {
+                    LOG.log(Level.WARNING, "Failed to log " + selected + " in", e);
+                }
+            });
+        }
+
+        if (!config().getAuthlibInjectorServers().isEmpty()) {
+            triggerAuthlibInjectorUpdateCheck();
+        }
+
+        for (AuthlibInjectorServer server : config().getAuthlibInjectorServers()) {
+            if (selected instanceof AuthlibInjectorAccount && ((AuthlibInjectorAccount) selected).getServer() == server)
+                continue;
+            Schedulers.io().execute(() -> {
+                try {
+                    server.fetchMetadataResponse();
+                } catch (IOException e) {
+                    LOG.log(Level.WARNING, "Failed to fetch authlib-injector server metdata: " + server, e);
+                }
+            });
+        }
    }

    public static ObservableList<Account> getAccounts() {
@@ -194,7 +253,7 @@ public final class Accounts {
    }

    public static ReadOnlyListProperty<Account> accountsProperty() {
-        return accountsWrapper;
+        return accountsWrapper.getReadOnlyProperty();
    }

    public static Account getSelectedAccount() {
@@ -210,21 +269,34 @@ public final class Accounts {
    }

    // ==== authlib-injector ====
+    private static AuthlibInjectorArtifactProvider createAuthlibInjectorArtifactProvider() {
+        String authlibinjectorLocation = System.getProperty("hmcl.authlibinjector.location");
+        if (authlibinjectorLocation == null) {
+            return new AuthlibInjectorDownloader(
+                    Metadata.HMCL_DIRECTORY.resolve("authlib-injector.jar"),
+                    DownloadProviders::getDownloadProvider) {
+                @Override
+                public Optional<AuthlibInjectorArtifactInfo> getArtifactInfoImmediately() {
+                    Optional<AuthlibInjectorArtifactInfo> local = super.getArtifactInfoImmediately();
+                    if (local.isPresent()) {
+                        return local;
+                    }
+                    // search authlib-injector.jar in current directory, it's used as a fallback
+                    return parseArtifact(Paths.get("authlib-injector.jar"));
+                }
+            };
+        } else {
+            LOG.info("Using specified authlib-injector: " + authlibinjectorLocation);
+            return new SimpleAuthlibInjectorArtifactProvider(Paths.get(authlibinjectorLocation));
+        }
+    }
+
    private static AuthlibInjectorServer getOrCreateAuthlibInjectorServer(String url) {
        return config().getAuthlibInjectorServers().stream()
                .filter(server -> url.equals(server.getUrl()))
                .findFirst()
                .orElseGet(() -> {
-                    // this usually happens when migrating data from an older version
-                    AuthlibInjectorServer server;
-                    try {
-                        server = AuthlibInjectorServer.fetchServerInfo(url);
-                        LOG.info("Migrated authlib injector server " + server);
-                    } catch (IOException e) {
-                        server = new AuthlibInjectorServer(url, url);
-                        LOG.log(Level.WARNING, "Failed to migrate authlib injector server " + url, e);
-                    }
-
+                    AuthlibInjectorServer server = new AuthlibInjectorServer(url);
                    config().getAuthlibInjectorServers().add(server);
                    return server;
                });
@@ -245,18 +317,15 @@ public final class Accounts {
    // ====

    // ==== Login type name i18n ===
-    private static Map<AccountFactory<?>, String> loginType2name = mapOf(
-            pair(Accounts.FACTORY_OFFLINE, i18n("account.methods.offline")),
-            pair(Accounts.FACTORY_YGGDRASIL, i18n("account.methods.yggdrasil")),
-            pair(Accounts.FACTORY_AUTHLIB_INJECTOR, i18n("account.methods.authlib_injector")));
+    private static Map<AccountFactory<?>, String> unlocalizedLoginTypeNames = mapOf(
+            pair(Accounts.FACTORY_OFFLINE, "account.methods.offline"),
+            pair(Accounts.FACTORY_MOJANG, "account.methods.yggdrasil"),
+            pair(Accounts.FACTORY_AUTHLIB_INJECTOR, "account.methods.authlib_injector"),
+            pair(Accounts.FACTORY_MICROSOFT, "account.methods.microsoft"));

-    public static String getAccountTypeName(AccountFactory<?> factory) {
-        return Optional.ofNullable(loginType2name.get(factory))
-                .orElseThrow(() -> new IllegalArgumentException("No corresponding login type name"));
-    }
-
-    public static String getAccountTypeName(Account account) {
-        return getAccountTypeName(getAccountFactory(account));
+    public static String getLocalizedLoginTypeName(AccountFactory<?> factory) {
+        return i18n(Optional.ofNullable(unlocalizedLoginTypeNames.get(factory))
+                .orElseThrow(() -> new IllegalArgumentException("Unrecognized account factory")));
    }
    // ====
 }
@@ -0,0 +1,91 @@
+/*
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package org.jackhuang.hmcl.setting;
+
+import com.google.gson.JsonParseException;
+import org.jackhuang.hmcl.auth.authlibinjector.AuthlibInjectorServer;
+import org.jackhuang.hmcl.task.Schedulers;
+import org.jackhuang.hmcl.task.Task;
+import org.jackhuang.hmcl.util.gson.JsonUtils;
+import org.jackhuang.hmcl.util.gson.Validation;
+import org.jackhuang.hmcl.util.io.FileUtils;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.Collections;
+import java.util.List;
+import java.util.logging.Level;
+
+import static org.jackhuang.hmcl.setting.ConfigHolder.config;
+import static org.jackhuang.hmcl.util.Logging.LOG;
+
+public class AuthlibInjectorServers implements Validation {
+
+    public static final String CONFIG_FILENAME = "authlib-injectors.json";
+
+    private final List<String> urls;
+
+    public AuthlibInjectorServers(List<String> urls) {
+        this.urls = urls;
+    }
+
+    public List<String> getUrls() {
+        return urls;
+    }
+
+    @Override
+    public void validate() throws JsonParseException {
+        if (urls == null)
+            throw new JsonParseException("authlib-injectors.json -> urls cannot be null");
+    }
+
+    private static final Path configLocation = Paths.get(CONFIG_FILENAME);
+    private static AuthlibInjectorServers configInstance;
+
+    public synchronized static void init() {
+        if (configInstance != null) {
+            throw new IllegalStateException("AuthlibInjectorServers is already loaded");
+        }
+
+        configInstance = new AuthlibInjectorServers(Collections.emptyList());
+
+        if (Files.exists(configLocation)) {
+            try {
+                String content = FileUtils.readText(configLocation);
+                configInstance = JsonUtils.GSON.fromJson(content, AuthlibInjectorServers.class);
+            } catch (IOException | JsonParseException e) {
+                LOG.log(Level.WARNING, "Malformed authlib-injectors.json", e);
+            }
+        }
+
+        if (ConfigHolder.isNewlyCreated() && !AuthlibInjectorServers.getConfigInstance().getUrls().isEmpty()) {
+            config().setPreferredLoginType(Accounts.getLoginType(Accounts.FACTORY_AUTHLIB_INJECTOR));
+            for (String url : AuthlibInjectorServers.getConfigInstance().getUrls()) {
+                Task.supplyAsync(Schedulers.io(), () -> AuthlibInjectorServer.locateServer(url))
+                        .thenAcceptAsync(Schedulers.javafx(), server -> config().getAuthlibInjectorServers().add(server))
+                        .start();
+            }
+        }
+    }
+
+    public static AuthlibInjectorServers getConfigInstance() {
+        return configInstance;
+    }
+}
@@ -1,7 +1,7 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
@@ -13,74 +13,64 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl.setting;

-import java.io.File;
-import java.lang.reflect.Modifier;
-import java.net.Proxy;
-import java.util.Map;
-import java.util.TreeMap;
-import java.util.stream.Stream;
-
-import org.hildan.fxgson.creators.ObservableListCreator;
-import org.hildan.fxgson.creators.ObservableMapCreator;
-import org.hildan.fxgson.creators.ObservableSetCreator;
-import org.hildan.fxgson.factories.JavaFxPropertyTypeAdapterFactory;
-import org.jackhuang.hmcl.Launcher;
-import org.jackhuang.hmcl.auth.authlibinjector.AuthlibInjectorServer;
-import org.jackhuang.hmcl.upgrade.UpdateChannel;
-import org.jackhuang.hmcl.util.EnumOrdinalDeserializer;
-import org.jackhuang.hmcl.util.FileTypeAdapter;
-import org.jackhuang.hmcl.util.ObservableHelper;
-import org.jackhuang.hmcl.util.i18n.Locales;
-import org.jackhuang.hmcl.util.i18n.Locales.SupportedLocale;
-
 import com.google.gson.Gson;
 import com.google.gson.GsonBuilder;
 import com.google.gson.JsonParseException;
 import com.google.gson.annotations.SerializedName;
-
 import javafx.beans.InvalidationListener;
 import javafx.beans.Observable;
-import javafx.beans.property.BooleanProperty;
-import javafx.beans.property.DoubleProperty;
-import javafx.beans.property.IntegerProperty;
-import javafx.beans.property.ObjectProperty;
-import javafx.beans.property.SimpleBooleanProperty;
-import javafx.beans.property.SimpleDoubleProperty;
-import javafx.beans.property.SimpleIntegerProperty;
-import javafx.beans.property.SimpleObjectProperty;
-import javafx.beans.property.SimpleStringProperty;
-import javafx.beans.property.StringProperty;
+import javafx.beans.property.*;
 import javafx.collections.FXCollections;
 import javafx.collections.ObservableList;
 import javafx.collections.ObservableMap;
 import javafx.collections.ObservableSet;
+import org.hildan.fxgson.creators.ObservableListCreator;
+import org.hildan.fxgson.creators.ObservableMapCreator;
+import org.hildan.fxgson.creators.ObservableSetCreator;
+import org.hildan.fxgson.factories.JavaFxPropertyTypeAdapterFactory;
+import org.jackhuang.hmcl.Metadata;
+import org.jackhuang.hmcl.auth.authlibinjector.AuthlibInjectorServer;
+import org.jackhuang.hmcl.upgrade.UpdateChannel;
+import org.jackhuang.hmcl.util.gson.EnumOrdinalDeserializer;
+import org.jackhuang.hmcl.util.gson.FileTypeAdapter;
+import org.jackhuang.hmcl.util.i18n.Locales;
+import org.jackhuang.hmcl.util.i18n.Locales.SupportedLocale;
+import org.jackhuang.hmcl.util.javafx.ObservableHelper;
+import org.jackhuang.hmcl.util.javafx.PropertyUtils;
+import org.jetbrains.annotations.Nullable;
+
+import java.io.File;
+import java.net.Proxy;
+import java.util.Map;
+import java.util.TreeMap;

 public final class Config implements Cloneable, Observable {

+    public static final int CURRENT_UI_VERSION = 0;
+
    private static final Gson CONFIG_GSON = new GsonBuilder()
-            .registerTypeAdapter(VersionSetting.class, VersionSetting.Serializer.INSTANCE)
-            .registerTypeAdapter(Profile.class, Profile.Serializer.INSTANCE)
            .registerTypeAdapter(File.class, FileTypeAdapter.INSTANCE)
            .registerTypeAdapter(ObservableList.class, new ObservableListCreator())
            .registerTypeAdapter(ObservableSet.class, new ObservableSetCreator())
            .registerTypeAdapter(ObservableMap.class, new ObservableMapCreator())
            .registerTypeAdapterFactory(new JavaFxPropertyTypeAdapterFactory(true, true))
-            .registerTypeAdapter(Theme.class, new Theme.TypeAdapter())
-            .registerTypeAdapter(SupportedLocale.class, new SupportedLocale.TypeAdapter())
            .registerTypeAdapter(EnumBackgroundImage.class, new EnumOrdinalDeserializer<>(EnumBackgroundImage.class)) // backward compatibility for backgroundType
            .registerTypeAdapter(Proxy.Type.class, new EnumOrdinalDeserializer<>(Proxy.Type.class)) // backward compatibility for hasProxy
            .setPrettyPrinting()
            .create();

+    @Nullable
    public static Config fromJson(String json) throws JsonParseException {
-        Config instance = CONFIG_GSON.fromJson(json, Config.class);
-        // Gson will replace the property fields (even they are final!)
-        // So we have to add the listeners again after deserialization
-        instance.addListenerToProperties();
+        Config loaded = CONFIG_GSON.fromJson(json, Config.class);
+        if (loaded == null) {
+            return null;
+        }
+        Config instance = new Config();
+        PropertyUtils.copyProperties(loaded, instance);
        return instance;
    }

@@ -97,7 +87,7 @@ public final class Config implements Cloneable, Observable {
    private ObjectProperty<EnumCommonDirectory> commonDirType = new SimpleObjectProperty<>(EnumCommonDirectory.DEFAULT);

    @SerializedName("commonpath")
-    private StringProperty commonDirectory = new SimpleStringProperty(Launcher.MINECRAFT_DIRECTORY.getAbsolutePath());
+    private StringProperty commonDirectory = new SimpleStringProperty(Metadata.MINECRAFT_DIRECTORY.toString());

    @SerializedName("hasProxy")
    private BooleanProperty hasProxy = new SimpleBooleanProperty();
@@ -106,13 +96,13 @@ public final class Config implements Cloneable, Observable {
    private BooleanProperty hasProxyAuth = new SimpleBooleanProperty();

    @SerializedName("proxyType")
-    private ObjectProperty<Proxy.Type> proxyType = new SimpleObjectProperty<>(Proxy.Type.DIRECT);
+    private ObjectProperty<Proxy.Type> proxyType = new SimpleObjectProperty<>(Proxy.Type.HTTP);

    @SerializedName("proxyHost")
    private StringProperty proxyHost = new SimpleStringProperty();

    @SerializedName("proxyPort")
-    private StringProperty proxyPort = new SimpleStringProperty();
+    private IntegerProperty proxyPort = new SimpleIntegerProperty();

    @SerializedName("proxyUserName")
    private StringProperty proxyUser = new SimpleStringProperty();
@@ -120,14 +110,20 @@ public final class Config implements Cloneable, Observable {
    @SerializedName("proxyPassword")
    private StringProperty proxyPass = new SimpleStringProperty();

+    @SerializedName("width")
+    private DoubleProperty width = new SimpleDoubleProperty();
+
+    @SerializedName("height")
+    private DoubleProperty height = new SimpleDoubleProperty();
+
    @SerializedName("theme")
    private ObjectProperty<Theme> theme = new SimpleObjectProperty<>(Theme.BLUE);

    @SerializedName("localization")
    private ObjectProperty<SupportedLocale> localization = new SimpleObjectProperty<>(Locales.DEFAULT);

-    @SerializedName("downloadtype")
-    private IntegerProperty downloadType = new SimpleIntegerProperty(1);
+    @SerializedName("downloadType")
+    private StringProperty downloadType = new SimpleStringProperty("bmclapi");

    @SerializedName("configurations")
    private ObservableMap<String, Profile> configurations = FXCollections.observableMap(new TreeMap<>());
@@ -135,9 +131,6 @@ public final class Config implements Cloneable, Observable {
    @SerializedName("accounts")
    private ObservableList<Map<Object, Object>> accountStorages = FXCollections.observableArrayList();

-    @SerializedName("selectedAccount")
-    private StringProperty selectedAccount = new SimpleStringProperty("");
-
    @SerializedName("fontFamily")
    private StringProperty fontFamily = new SimpleStringProperty("Consolas");

@@ -148,7 +141,7 @@ public final class Config implements Cloneable, Observable {
    private IntegerProperty logLines = new SimpleIntegerProperty(100);

    @SerializedName("authlibInjectorServers")
-    private ObservableList<AuthlibInjectorServer> authlibInjectorServers = FXCollections.observableArrayList();
+    private ObservableList<AuthlibInjectorServer> authlibInjectorServers = FXCollections.observableArrayList(server -> new Observable[] { server });

    @SerializedName("updateChannel")
    private ObjectProperty<UpdateChannel> updateChannel = new SimpleObjectProperty<>(UpdateChannel.STABLE);
@@ -156,27 +149,26 @@ public final class Config implements Cloneable, Observable {
    @SerializedName("_version")
    private IntegerProperty configVersion = new SimpleIntegerProperty(0);

+    /**
+     * The version of UI that the user have last used.
+     * If there is a major change in UI, {@link Config#CURRENT_UI_VERSION} should be increased.
+     * When {@link #CURRENT_UI_VERSION} is higher than the property, the user guide should be shown,
+     * then this property is set to the same value as {@link #CURRENT_UI_VERSION}.
+     * In particular, the property is default to 0, so that whoever open the application for the first time will see the guide.
+     */
+    @SerializedName("uiVersion")
+    private IntegerProperty uiVersion = new SimpleIntegerProperty(0);
+
+    /**
+     * The preferred login type to use when the user wants to add an account.
+     */
+    @SerializedName("preferredLoginType")
+    private StringProperty preferredLoginType = new SimpleStringProperty();
+
    private transient ObservableHelper helper = new ObservableHelper(this);

    public Config() {
-        addListenerToProperties();
-    }
-
-    private void addListenerToProperties() {
-        Stream.of(getClass().getDeclaredFields())
-                .filter(it -> {
-                    int modifiers = it.getModifiers();
-                    return !Modifier.isTransient(modifiers) && !Modifier.isStatic(modifiers);
-                })
-                .filter(it -> Observable.class.isAssignableFrom(it.getType()))
-                .map(it -> {
-                    try {
-                        return (Observable) it.get(this);
-                    } catch (IllegalAccessException e) {
-                        throw new IllegalStateException("Failed to get my own properties");
-                    }
-                })
-                .forEach(helper::receiveUpdatesFrom);
+        PropertyUtils.attachListener(this, helper);
    }

    @Override
@@ -307,15 +299,15 @@ public final class Config implements Cloneable, Observable {
        return proxyHost;
    }

-    public String getProxyPort() {
+    public int getProxyPort() {
        return proxyPort.get();
    }

-    public void setProxyPort(String proxyPort) {
+    public void setProxyPort(int proxyPort) {
        this.proxyPort.set(proxyPort);
    }

-    public StringProperty proxyPortProperty() {
+    public IntegerProperty proxyPortProperty() {
        return proxyPort;
    }

@@ -343,6 +335,30 @@ public final class Config implements Cloneable, Observable {
        return proxyPass;
    }

+    public double getWidth() {
+        return width.get();
+    }
+
+    public DoubleProperty widthProperty() {
+        return width;
+    }
+
+    public void setWidth(double width) {
+        this.width.set(width);
+    }
+
+    public double getHeight() {
+        return height.get();
+    }
+
+    public DoubleProperty heightProperty() {
+        return height;
+    }
+
+    public void setHeight(double height) {
+        this.height.set(height);
+    }
+
    public Theme getTheme() {
        return theme.get();
    }
@@ -367,15 +383,15 @@ public final class Config implements Cloneable, Observable {
        return localization;
    }

-    public int getDownloadType() {
+    public String getDownloadType() {
        return downloadType.get();
    }

-    public void setDownloadType(int downloadType) {
+    public void setDownloadType(String downloadType) {
        this.downloadType.set(downloadType);
    }

-    public IntegerProperty downloadTypeProperty() {
+    public StringProperty downloadTypeProperty() {
        return downloadType;
    }

@@ -387,18 +403,6 @@ public final class Config implements Cloneable, Observable {
        return accountStorages;
    }

-    public String getSelectedAccount() {
-        return selectedAccount.get();
-    }
-
-    public void setSelectedAccount(String selectedAccount) {
-        this.selectedAccount.set(selectedAccount);
-    }
-
-    public StringProperty selectedAccountProperty() {
-        return selectedAccount;
-    }
-
    public String getFontFamily() {
        return fontFamily.get();
    }
@@ -450,4 +454,40 @@ public final class Config implements Cloneable, Observable {
    public void setUpdateChannel(UpdateChannel updateChannel) {
        this.updateChannel.set(updateChannel);
    }
+
+    public int getConfigVersion() {
+        return configVersion.get();
+    }
+
+    public IntegerProperty configVersionProperty() {
+        return configVersion;
+    }
+
+    public void setConfigVersion(int configVersion) {
+        this.configVersion.set(configVersion);
+    }
+
+    public int getUiVersion() {
+        return uiVersion.get();
+    }
+
+    public IntegerProperty uiVersionProperty() {
+        return uiVersion;
+    }
+
+    public void setUiVersion(int uiVersion) {
+        this.uiVersion.set(uiVersion);
+    }
+
+    public String getPreferredLoginType() {
+        return preferredLoginType.get();
+    }
+
+    public void setPreferredLoginType(String preferredLoginType) {
+        this.preferredLoginType.set(preferredLoginType);
+    }
+
+    public StringProperty preferredLoginTypeProperty() {
+        return preferredLoginType;
+    }
 }
@@ -1,6 +1,6 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
@@ -13,12 +13,16 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl.setting;

-import static java.nio.charset.StandardCharsets.UTF_8;
-import static org.jackhuang.hmcl.util.Logging.LOG;
+import com.google.gson.Gson;
+import com.google.gson.JsonParseException;
+import org.jackhuang.hmcl.util.InvocationDispatcher;
+import org.jackhuang.hmcl.util.Lang;
+import org.jackhuang.hmcl.util.io.FileUtils;
+import org.jackhuang.hmcl.util.platform.OperatingSystem;

 import java.io.IOException;
 import java.nio.file.Files;
@@ -27,10 +31,8 @@ import java.nio.file.Paths;
 import java.util.Map;
 import java.util.logging.Level;

-import com.google.gson.Gson;
-import com.google.gson.JsonParseException;
-
-import org.jackhuang.hmcl.util.OperatingSystem;
+import static java.nio.charset.StandardCharsets.UTF_8;
+import static org.jackhuang.hmcl.util.Logging.LOG;

 public final class ConfigHolder {

@@ -51,9 +53,6 @@ public final class ConfigHolder {
    }

    public static boolean isNewlyCreated() {
-        if (configInstance == null) {
-            throw new IllegalStateException("Configuration hasn't been loaded");
-        }
        return newlyCreated;
    }

@@ -63,13 +62,16 @@ public final class ConfigHolder {
        }

        configLocation = locateConfig();
+
+        LOG.log(Level.INFO, "Config location: " + configLocation);
+
        configInstance = loadConfig();
        configInstance.addListener(source -> markConfigDirty());

        Settings.init();

        if (newlyCreated) {
-            saveConfig();
+            saveConfigSync();

            // hide the config file on windows
            if (OperatingSystem.CURRENT_OS == OperatingSystem.WINDOWS) {
@@ -89,6 +91,26 @@ public final class ConfigHolder {
    }

    private static Path locateConfig() {
+        Path exePath = Paths.get("");
+        try {
+            Path jarPath = Paths.get(ConfigHolder.class.getProtectionDomain().getCodeSource().getLocation()
+                    .toURI()).toAbsolutePath();
+            if (Files.isRegularFile(jarPath)) {
+                jarPath = jarPath.getParent();
+                exePath = jarPath;
+
+                Path config = jarPath.resolve(CONFIG_FILENAME);
+                if (Files.isRegularFile(config))
+                    return config;
+
+                Path dotConfig = jarPath.resolve(CONFIG_FILENAME_LINUX);
+                if (Files.isRegularFile(dotConfig))
+                    return dotConfig;
+            }
+
+        } catch (Throwable ignore) {
+        }
+
        Path config = Paths.get(CONFIG_FILENAME);
        if (Files.isRegularFile(config))
            return config;
@@ -98,13 +120,13 @@ public final class ConfigHolder {
            return dotConfig;

        // create new
-        return OperatingSystem.CURRENT_OS == OperatingSystem.WINDOWS ? config : dotConfig;
+        return exePath.resolve(OperatingSystem.CURRENT_OS == OperatingSystem.WINDOWS ? CONFIG_FILENAME : CONFIG_FILENAME_LINUX);
    }

    private static Config loadConfig() throws IOException {
        if (Files.exists(configLocation)) {
            try {
-                String content = new String(Files.readAllBytes(configLocation), UTF_8);
+                String content = FileUtils.readText(configLocation);
                Config deserialized = Config.fromJson(content);
                if (deserialized == null) {
                    LOG.info("Config is empty");
@@ -123,22 +145,26 @@ public final class ConfigHolder {
        return new Config();
    }

-    private static void saveConfig() throws IOException {
-        LOG.info("Saving config");
+    private static InvocationDispatcher<String> configWriter = InvocationDispatcher.runOn(Lang::thread, content -> {
        try {
-            Files.write(configLocation, configInstance.toJson().getBytes(UTF_8));
+            writeToConfig(content);
        } catch (IOException e) {
            LOG.log(Level.SEVERE, "Failed to save config", e);
-            throw e;
+        }
+    });
+
+    private static void writeToConfig(String content) throws IOException {
+        LOG.info("Saving config");
+        synchronized (configLocation) {
+            Files.write(configLocation, content.getBytes(UTF_8));
        }
    }

    static void markConfigDirty() {
-        // TODO: change this to async
-        try {
-            saveConfig();
-        } catch (IOException ignored) {
-            // ignore it as it has been logged
-        }
+        configWriter.accept(configInstance.toJson());
+    }
+
+    private static void saveConfigSync() throws IOException {
+        writeToConfig(configInstance.toJson());
    }
 }
@@ -1,6 +1,6 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
@@ -13,22 +13,19 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl.setting;

-import org.jackhuang.hmcl.auth.offline.OfflineAccount;
-import org.jackhuang.hmcl.auth.offline.OfflineAccountFactory;
 import org.jackhuang.hmcl.util.StringUtils;
-import org.jackhuang.hmcl.util.UUIDTypeAdapter;
-
-import java.util.LinkedList;
-import java.util.List;
+import java.util.HashMap;
 import java.util.Map;

 import static org.jackhuang.hmcl.util.Lang.tryCast;

 final class ConfigUpgrader {
+    private static final int VERSION = 0;
+
    private ConfigUpgrader() {
    }

@@ -37,10 +34,22 @@ final class ConfigUpgrader {
     *
     * @param deserialized deserialized config settings
     * @param rawJson      raw json structure of the config settings without modification
+     * @return true if config version is upgraded
     */
-    static void upgradeConfig(Config deserialized, Map<?, ?> rawJson) {
+    static boolean upgradeConfig(Config deserialized, Map<?, ?> rawJson) {
+        boolean upgraded;
+        if (deserialized.getConfigVersion() < VERSION) {
+            deserialized.setConfigVersion(VERSION);
+            // TODO: Add upgrade code here.
+            upgraded = true;
+        } else {
+            upgraded = false;
+        }
+
        upgradeV2(deserialized, rawJson);
        upgradeV3(deserialized, rawJson);
+
+        return upgraded;
    }

    /**
@@ -53,20 +62,21 @@ final class ConfigUpgrader {
        // Convert OfflineAccounts whose stored uuid is important.
        tryCast(rawJson.get("auth"), Map.class).ifPresent(auth -> {
            tryCast(auth.get("offline"), Map.class).ifPresent(offline -> {
-                List<OfflineAccount> accounts = new LinkedList<>();
+                String selected = rawJson.containsKey("selectedAccount") ? null
+                        : tryCast(offline.get("IAuthenticator_UserName"), String.class).orElse(null);
+
                tryCast(offline.get("uuidMap"), Map.class).ifPresent(uuidMap -> {
                    ((Map<?, ?>) uuidMap).forEach((key, value) -> {
-                        OfflineAccount account = OfflineAccountFactory.INSTANCE.create((String) key, UUIDTypeAdapter.fromString((String) value));
-                        accounts.add(account);
-                        deserialized.getAccountStorages().add(Accounts.getAccountStorage(account));
+                        Map<Object, Object> storage = new HashMap<>();
+                        storage.put("type", "offline");
+                        storage.put("username", key);
+                        storage.put("uuid", value);
+                        if (key.equals(selected)) {
+                            storage.put("selected", true);
+                        }
+                        deserialized.getAccountStorages().add(storage);
                    });
                });
-
-                tryCast(offline.get("IAuthenticator_UserName"), String.class).ifPresent(selected -> {
-                    if (!rawJson.containsKey("selectedAccount"))
-                        accounts.stream().filter(account -> selected.equals(account.getUsername())).findAny().ifPresent(account ->
-                                deserialized.setSelectedAccount(Accounts.accountId(account)));
-                });
            });
        });
    }
@@ -86,5 +96,34 @@ final class ConfigUpgrader {
            deserialized.setHasProxy(StringUtils.isNotBlank(deserialized.getProxyHost()));
        if (!rawJson.containsKey("hasProxyAuth"))
            deserialized.setHasProxyAuth(StringUtils.isNotBlank(deserialized.getProxyUser()));
+
+        if (!rawJson.containsKey("downloadType")) {
+            tryCast(rawJson.get("downloadtype"), Number.class)
+                    .map(Number::intValue)
+                    .ifPresent(id -> {
+                        if (id == 0) {
+                            deserialized.setDownloadType("mojang");
+                        } else if (id == 1) {
+                            deserialized.setDownloadType("bmclapi");
+                        }
+                    });
+        }
+
+        tryCast(rawJson.get("selectedAccount"), String.class)
+                .ifPresent(selected -> {
+                    deserialized.getAccountStorages().stream()
+                            .filter(storage -> {
+                                Object type = storage.get("type");
+                                if ("offline".equals(type)) {
+                                    return selected.equals(storage.get("username") + ":" + storage.get("username"));
+                                } else if ("yggdrasil".equals(type) || "authlibInjector".equals(type)) {
+                                    return selected.equals(storage.get("username") + ":" + storage.get("displayName"));
+                                } else {
+                                    return false;
+                                }
+                            })
+                            .findFirst()
+                            .ifPresent(storage -> storage.put("selected", true));
+                });
    }
 }
@@ -1,7 +1,7 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
@@ -13,24 +13,83 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl.setting;

+import org.jackhuang.hmcl.download.AdaptedDownloadProvider;
 import org.jackhuang.hmcl.download.BMCLAPIDownloadProvider;
-import org.jackhuang.hmcl.download.CurseCDNDownloadProvider;
 import org.jackhuang.hmcl.download.DownloadProvider;
 import org.jackhuang.hmcl.download.MojangDownloadProvider;
-import org.jackhuang.hmcl.util.Lang;
+import org.jackhuang.hmcl.ui.FXUtils;

-import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+import static org.jackhuang.hmcl.setting.ConfigHolder.config;
+import static org.jackhuang.hmcl.util.Lang.mapOf;
+import static org.jackhuang.hmcl.util.Pair.pair;

 public final class DownloadProviders {
    private DownloadProviders() {}

-    public static final List<DownloadProvider> DOWNLOAD_PROVIDERS = Lang.immutableListOf(new MojangDownloadProvider(), BMCLAPIDownloadProvider.INSTANCE, CurseCDNDownloadProvider.INSTANCE);
+    private static final AdaptedDownloadProvider DOWNLOAD_PROVIDER = new AdaptedDownloadProvider();

-    public static DownloadProvider getDownloadProvider(int index) {
-        return Lang.get(DOWNLOAD_PROVIDERS, index).orElse(DOWNLOAD_PROVIDERS.get(0));
+    public static final Map<String, DownloadProvider> providersById;
+
+    public static final String DEFAULT_PROVIDER_ID = "mcbbs";
+
+    static {
+        String bmclapiRoot = "https://bmclapi2.bangbang93.com";
+        String bmclapiRootOverride = System.getProperty("hmcl.bmclapi.override");
+        if (bmclapiRootOverride != null) bmclapiRoot = bmclapiRootOverride;
+
+        providersById = mapOf(
+                pair("mojang", new MojangDownloadProvider()),
+                pair("bmclapi", new BMCLAPIDownloadProvider(bmclapiRoot)),
+                pair("mcbbs", new BMCLAPIDownloadProvider("https://download.mcbbs.net")));
+    }
+
+    static void init() {
+        FXUtils.onChangeAndOperate(config().downloadTypeProperty(), downloadType -> {
+            DownloadProvider primary = Optional.ofNullable(providersById.get(config().getDownloadType()))
+                    .orElse(providersById.get(DEFAULT_PROVIDER_ID));
+            DOWNLOAD_PROVIDER.setDownloadProviderCandidates(
+                    Stream.concat(
+                            Stream.of(primary),
+                            providersById.values().stream().filter(x -> x != primary)
+                    ).collect(Collectors.toList())
+            );
+        });
+    }
+
+    public static String getPrimaryDownloadProviderId() {
+        String downloadType = config().getDownloadType();
+        if (providersById.containsKey(downloadType))
+            return downloadType;
+        else
+            return DEFAULT_PROVIDER_ID;
+    }
+
+    public static AdaptedDownloadProvider getDownloadProviderByPrimaryId(String primaryId) {
+        AdaptedDownloadProvider adaptedDownloadProvider = new AdaptedDownloadProvider();
+        DownloadProvider primary = Optional.ofNullable(providersById.get(primaryId))
+                .orElse(providersById.get(DEFAULT_PROVIDER_ID));
+        adaptedDownloadProvider.setDownloadProviderCandidates(
+                Stream.concat(
+                        Stream.of(primary),
+                        providersById.values().stream().filter(x -> x != primary)
+                ).collect(Collectors.toList())
+        );
+        return adaptedDownloadProvider;
+    }
+
+    /**
+     * Get current primary preferred download provider
+     */
+    public static AdaptedDownloadProvider getDownloadProvider() {
+        return DOWNLOAD_PROVIDER;
    }
 }
@@ -1,6 +1,6 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
@@ -13,7 +13,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl.setting;

@@ -1,6 +1,6 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2017  huangyuhui <huanghongxun2008@126.com>
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
@@ -13,15 +13,11 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl.setting;

 public enum EnumCommonDirectory {
-    /**
-     * same to game directory
-     */
-    DISABLED,
    /**
     * %appdata%/.minecraft or ~/.minecraft
     */
@@ -1,28 +0,0 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
- */
-package org.jackhuang.hmcl.setting;
-
-import javafx.scene.text.Font;
-
-import java.util.List;
-
-public final class Fonts {
-    private Fonts() {}
-
-    public static final List<String> FONTS = Font.getFamilies();
-}
@@ -1,7 +1,7 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
@@ -13,7 +13,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl.setting;

@@ -1,6 +1,6 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
@@ -13,91 +13,108 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl.setting;

 import com.google.gson.*;
+import com.google.gson.annotations.JsonAdapter;
+import javafx.application.Platform;
 import javafx.beans.InvalidationListener;
-import javafx.beans.property.BooleanProperty;
-import javafx.beans.property.SimpleBooleanProperty;
-
-import org.jackhuang.hmcl.game.HMCLDependencyManager;
+import javafx.beans.Observable;
+import javafx.beans.property.*;
+import org.jackhuang.hmcl.download.DefaultDependencyManager;
+import org.jackhuang.hmcl.download.DownloadProvider;
+import org.jackhuang.hmcl.event.EventBus;
+import org.jackhuang.hmcl.event.EventPriority;
+import org.jackhuang.hmcl.event.RefreshedVersionsEvent;
+import org.jackhuang.hmcl.game.HMCLCacheRepository;
 import org.jackhuang.hmcl.game.HMCLGameRepository;
-import org.jackhuang.hmcl.mod.ModManager;
-import org.jackhuang.hmcl.util.ImmediateObjectProperty;
-import org.jackhuang.hmcl.util.ImmediateStringProperty;
+import org.jackhuang.hmcl.game.Version;
+import org.jackhuang.hmcl.ui.WeakListenerHolder;
 import org.jackhuang.hmcl.util.ToStringBuilder;
+import org.jackhuang.hmcl.util.javafx.ObservableHelper;

 import java.io.File;
 import java.lang.reflect.Type;
 import java.util.Optional;

+import static org.jackhuang.hmcl.ui.FXUtils.onInvalidating;
+import static org.jackhuang.hmcl.ui.FXUtils.runInFX;
+
 /**
 *
 * @author huangyuhui
 */
-public final class Profile {
-
+@JsonAdapter(Profile.Serializer.class)
+public final class Profile implements Observable {
+    private final WeakListenerHolder listenerHolder = new WeakListenerHolder();
    private final HMCLGameRepository repository;
-    private final ModManager modManager;

-    private final ImmediateObjectProperty<File> gameDirProperty;
+    private final StringProperty selectedVersion = new SimpleStringProperty();

-    public ImmediateObjectProperty<File> gameDirProperty() {
-        return gameDirProperty;
+    public StringProperty selectedVersionProperty() {
+        return selectedVersion;
+    }
+
+    public String getSelectedVersion() {
+        return selectedVersion.get();
+    }
+
+    public void setSelectedVersion(String selectedVersion) {
+        this.selectedVersion.set(selectedVersion);
+    }
+
+    private final ObjectProperty<File> gameDir;
+
+    public ObjectProperty<File> gameDirProperty() {
+        return gameDir;
    }

    public File getGameDir() {
-        return gameDirProperty.get();
+        return gameDir.get();
    }

    public void setGameDir(File gameDir) {
-        gameDirProperty.set(gameDir);
+        this.gameDir.set(gameDir);
    }

-    private final ImmediateObjectProperty<VersionSetting> globalProperty = new ImmediateObjectProperty<>(this, "global", new VersionSetting());
+    private final ReadOnlyObjectWrapper<VersionSetting> global = new ReadOnlyObjectWrapper<>(this, "global");

-    public ImmediateObjectProperty<VersionSetting> globalProperty() {
-        return globalProperty;
+    public ReadOnlyObjectProperty<VersionSetting> globalProperty() {
+        return global.getReadOnlyProperty();
    }

    public VersionSetting getGlobal() {
-        return globalProperty.get();
+        return global.get();
    }

-    private void setGlobal(VersionSetting global) {
-        if (global == null)
-            global = new VersionSetting();
-        globalProperty.set(global);
-    }
+    private final SimpleStringProperty name;

-    private final ImmediateStringProperty nameProperty;
-
-    public ImmediateStringProperty nameProperty() {
-        return nameProperty;
+    public StringProperty nameProperty() {
+        return name;
    }

    public String getName() {
-        return nameProperty.get();
+        return name.get();
    }

    public void setName(String name) {
-        nameProperty.set(name);
+        this.name.set(name);
    }

-    private BooleanProperty useRelativePathProperty = new SimpleBooleanProperty(this, "useRelativePath", false);
+    private BooleanProperty useRelativePath = new SimpleBooleanProperty(this, "useRelativePath", false);

    public BooleanProperty useRelativePathProperty() {
-        return useRelativePathProperty();
+        return useRelativePath;
    }

    public boolean isUseRelativePath() {
-        return useRelativePathProperty.get();
+        return useRelativePath.get();
    }

    public void setUseRelativePath(boolean useRelativePath) {
-        useRelativePathProperty.set(useRelativePath);
+        this.useRelativePath.set(useRelativePath);
    }

    public Profile(String name) {
@@ -105,60 +122,56 @@ public final class Profile {
    }

    public Profile(String name, File initialGameDir) {
-        nameProperty = new ImmediateStringProperty(this, "name", name);
-        gameDirProperty = new ImmediateObjectProperty<>(this, "gameDir", initialGameDir);
-        repository = new HMCLGameRepository(this, initialGameDir);
-        modManager = new ModManager(repository);
+        this(name, initialGameDir, new VersionSetting());
+    }

-        gameDirProperty.addListener((a, b, newValue) -> repository.changeDirectory(newValue));
+    public Profile(String name, File initialGameDir, VersionSetting global) {
+        this(name, initialGameDir, global, null, false);
+    }
+
+    public Profile(String name, File initialGameDir, VersionSetting global, String selectedVersion, boolean useRelativePath) {
+        this.name = new SimpleStringProperty(this, "name", name);
+        gameDir = new SimpleObjectProperty<>(this, "gameDir", initialGameDir);
+        repository = new HMCLGameRepository(this, initialGameDir);
+        this.global.set(global == null ? new VersionSetting() : global);
+        this.selectedVersion.set(selectedVersion);
+        this.useRelativePath.set(useRelativePath);
+
+        gameDir.addListener((a, b, newValue) -> repository.changeDirectory(newValue));
+        this.selectedVersion.addListener(o -> checkSelectedVersion());
+        listenerHolder.add(EventBus.EVENT_BUS.channel(RefreshedVersionsEvent.class).registerWeak(event -> checkSelectedVersion(), EventPriority.HIGHEST));
+
+        addPropertyChangedListener(onInvalidating(this::invalidate));
+    }
+
+    private void checkSelectedVersion() {
+        runInFX(() -> {
+            if (!repository.isLoaded()) return;
+            String newValue = selectedVersion.get();
+            if (!repository.hasVersion(newValue)) {
+                Optional<String> version = repository.getVersions().stream().findFirst().map(Version::getId);
+                if (version.isPresent())
+                    selectedVersion.setValue(version.get());
+                else if (newValue != null)
+                    selectedVersion.setValue(null);
+            }
+        });
    }

    public HMCLGameRepository getRepository() {
        return repository;
    }

-    public ModManager getModManager() {
-        return modManager;
+    public DefaultDependencyManager getDependency() {
+        return getDependency(DownloadProviders.getDownloadProvider());
    }

-    public HMCLDependencyManager getDependency() {
-        return new HMCLDependencyManager(this, Settings.instance().getDownloadProvider());
+    public DefaultDependencyManager getDependency(DownloadProvider downloadProvider) {
+        return new DefaultDependencyManager(repository, downloadProvider, HMCLCacheRepository.REPOSITORY);
    }

    public VersionSetting getVersionSetting(String id) {
-        VersionSetting vs = repository.getVersionSetting(id);
-        if (vs == null || vs.isUsesGlobal()) {
-            getGlobal().setGlobal(true); // always keep global.isGlobal = true
-            getGlobal().setUsesGlobal(true);
-            return getGlobal();
-        } else
-            return vs;
-    }
-
-    public boolean isVersionGlobal(String id) {
-        VersionSetting vs = repository.getVersionSetting(id);
-        return vs == null || vs.isUsesGlobal();
-    }
-
-    /**
-     * Make version use self version settings instead of the global one.
-     * @param id the version id.
-     * @return specialized version setting, null if given version does not exist.
-     */
-    public VersionSetting specializeVersionSetting(String id) {
-        VersionSetting vs = repository.getVersionSetting(id);
-        if (vs == null)
-            vs = repository.createVersionSetting(id);
-        if (vs == null)
-            return null;
-        vs.setUsesGlobal(false);
-        return vs;
-    }
-
-    public void globalizeVersionSetting(String id) {
-        VersionSetting vs = repository.getVersionSetting(id);
-        if (vs != null)
-            vs.setUsesGlobal(true);
+        return repository.getVersionSetting(id);
    }

    @Override
@@ -170,20 +183,50 @@ public final class Profile {
                .toString();
    }

-    public void addPropertyChangedListener(InvalidationListener listener) {
-        nameProperty.addListener(listener);
-        globalProperty.addListener(listener);
-        gameDirProperty.addListener(listener);
-        useRelativePathProperty.addListener(listener);
-        globalProperty.get().addPropertyChangedListener(listener);
+    private void addPropertyChangedListener(InvalidationListener listener) {
+        name.addListener(listener);
+        global.addListener(listener);
+        gameDir.addListener(listener);
+        useRelativePath.addListener(listener);
+        global.get().addPropertyChangedListener(listener);
+        selectedVersion.addListener(listener);
+    }
+
+    private ObservableHelper observableHelper = new ObservableHelper(this);
+
+    @Override
+    public void addListener(InvalidationListener listener) {
+        observableHelper.addListener(listener);
+    }
+
+    @Override
+    public void removeListener(InvalidationListener listener) {
+        observableHelper.removeListener(listener);
+    }
+
+    private void invalidate() {
+        Platform.runLater(observableHelper::invalidate);
+    }
+
+    public static class ProfileVersion {
+        private final Profile profile;
+        private final String version;
+
+        public ProfileVersion(Profile profile, String version) {
+            this.profile = profile;
+            this.version = version;
+        }
+
+        public Profile getProfile() {
+            return profile;
+        }
+
+        public String getVersion() {
+            return version;
+        }
    }

    public static final class Serializer implements JsonSerializer<Profile>, JsonDeserializer<Profile> {
-        public static final Serializer INSTANCE = new Serializer();
-
-        private Serializer() {
-        }
-
        @Override
        public JsonElement serialize(Profile src, Type typeOfSrc, JsonSerializationContext context) {
            if (src == null)
@@ -193,21 +236,22 @@ public final class Profile {
            jsonObject.add("global", context.serialize(src.getGlobal()));
            jsonObject.addProperty("gameDir", src.getGameDir().getPath());
            jsonObject.addProperty("useRelativePath", src.isUseRelativePath());
+            jsonObject.addProperty("selectedMinecraftVersion", src.getSelectedVersion());

            return jsonObject;
        }

        @Override
        public Profile deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context) throws JsonParseException {
-            if (json == null || json == JsonNull.INSTANCE || !(json instanceof JsonObject)) return null;
+            if (json == JsonNull.INSTANCE || !(json instanceof JsonObject)) return null;
            JsonObject obj = (JsonObject) json;
            String gameDir = Optional.ofNullable(obj.get("gameDir")).map(JsonElement::getAsString).orElse("");

-            Profile profile = new Profile("Default", new File(gameDir));
-            profile.setGlobal(context.deserialize(obj.get("global"), VersionSetting.class));
-
-            profile.setUseRelativePath(Optional.ofNullable(obj.get("useRelativePath")).map(JsonElement::getAsBoolean).orElse(false));
-            return profile;
+            return new Profile("Default",
+                    new File(gameDir),
+                    context.deserialize(obj.get("global"), VersionSetting.class),
+                    Optional.ofNullable(obj.get("selectedMinecraftVersion")).map(JsonElement::getAsString).orElse(""),
+                    Optional.ofNullable(obj.get("useRelativePath")).map(JsonElement::getAsBoolean).orElse(false));
        }

    }
@@ -1,6 +1,6 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
@@ -13,10 +13,29 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl.setting;

+import javafx.application.Platform;
+import javafx.beans.Observable;
+import javafx.beans.property.*;
+import javafx.collections.ObservableList;
+import org.jackhuang.hmcl.Metadata;
+import org.jackhuang.hmcl.event.EventBus;
+import org.jackhuang.hmcl.event.RefreshedVersionsEvent;
+
+import java.io.File;
+import java.util.HashSet;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.function.Consumer;
+import java.util.stream.Collectors;
+
+import static javafx.collections.FXCollections.observableArrayList;
+import static org.jackhuang.hmcl.setting.ConfigHolder.config;
+import static org.jackhuang.hmcl.ui.FXUtils.onInvalidating;
+import static org.jackhuang.hmcl.ui.FXUtils.runInFX;
 import static org.jackhuang.hmcl.util.i18n.I18n.i18n;

 public final class Profiles {
@@ -37,4 +56,160 @@ public final class Profiles {
                return profile.getName();
        }
    }
+
+    private static final ObservableList<Profile> profiles = observableArrayList(profile -> new Observable[] { profile });
+    private static final ReadOnlyListWrapper<Profile> profilesWrapper = new ReadOnlyListWrapper<>(profiles);
+
+    private static ObjectProperty<Profile> selectedProfile = new SimpleObjectProperty<Profile>() {
+        {
+            profiles.addListener(onInvalidating(this::invalidated));
+        }
+
+        @Override
+        protected void invalidated() {
+            if (!initialized)
+                return;
+
+            Profile profile = get();
+
+            if (profiles.isEmpty()) {
+                if (profile != null) {
+                    set(null);
+                    return;
+                }
+            } else {
+                if (!profiles.contains(profile)) {
+                    set(profiles.get(0));
+                    return;
+                }
+            }
+
+            config().setSelectedProfile(profile == null ? "" : profile.getName());
+            if (profile != null) {
+                if (profile.getRepository().isLoaded())
+                    selectedVersion.bind(profile.selectedVersionProperty());
+                else {
+                    selectedVersion.unbind();
+                    selectedVersion.set(null);
+                    // bind when repository was reloaded.
+                    profile.getRepository().refreshVersionsAsync().start();
+                }
+            } else {
+                selectedVersion.unbind();
+                selectedVersion.set(null);
+            }
+        }
+    };
+
+    private static void checkProfiles() {
+        if (profiles.isEmpty()) {
+            Profile current = new Profile(Profiles.DEFAULT_PROFILE, new File(".minecraft"), new VersionSetting(), null, true);
+            Profile home = new Profile(Profiles.HOME_PROFILE, Metadata.MINECRAFT_DIRECTORY.toFile());
+            Platform.runLater(() -> profiles.addAll(current, home));
+        }
+    }
+
+    /**
+     * True if {@link #init()} hasn't been called.
+     */
+    private static boolean initialized = false;
+
+    static {
+        profiles.addListener(onInvalidating(Profiles::updateProfileStorages));
+        profiles.addListener(onInvalidating(Profiles::checkProfiles));
+
+        selectedProfile.addListener((a, b, newValue) -> {
+            if (newValue != null)
+                newValue.getRepository().refreshVersionsAsync().start();
+        });
+    }
+
+    private static void updateProfileStorages() {
+        // don't update the underlying storage before data loading is completed
+        // otherwise it might cause data loss
+        if (!initialized)
+            return;
+        // update storage
+        config().getConfigurations().clear();
+        config().getConfigurations().putAll(profiles.stream().collect(Collectors.toMap(Profile::getName, it -> it)));
+    }
+
+    /**
+     * Called when it's ready to load profiles from {@link ConfigHolder#config()}.
+     */
+    static void init() {
+        if (initialized)
+            throw new IllegalStateException("Already initialized");
+
+        HashSet<String> names = new HashSet<>();
+        config().getConfigurations().forEach((name, profile) -> {
+            if (!names.add(name)) return;
+            profiles.add(profile);
+            profile.setName(name);
+        });
+        checkProfiles();
+
+        // Platform.runLater is necessary or profiles will be empty
+        // since checkProfiles adds 2 base profile later.
+        Platform.runLater(() -> {
+            initialized = true;
+
+            selectedProfile.set(
+                    profiles.stream()
+                            .filter(it -> it.getName().equals(config().getSelectedProfile()))
+                            .findFirst()
+                            .orElse(profiles.get(0)));
+        });
+
+        EventBus.EVENT_BUS.channel(RefreshedVersionsEvent.class).registerWeak(event -> {
+            runInFX(() -> {
+                Profile profile = selectedProfile.get();
+                if (profile != null && profile.getRepository() == event.getSource()) {
+                    selectedVersion.bind(profile.selectedVersionProperty());
+                    for (Consumer<Profile> listener : versionsListeners)
+                        listener.accept(profile);
+                }
+            });
+        });
+    }
+
+    public static ObservableList<Profile> getProfiles() {
+        return profiles;
+    }
+
+    public static ReadOnlyListProperty<Profile> profilesProperty() {
+        return profilesWrapper.getReadOnlyProperty();
+    }
+
+    public static Profile getSelectedProfile() {
+        return selectedProfile.get();
+    }
+
+    public static void setSelectedProfile(Profile profile) {
+        selectedProfile.set(profile);
+    }
+
+    public static ObjectProperty<Profile> selectedProfileProperty() {
+        return selectedProfile;
+    }
+
+    private static final ReadOnlyStringWrapper selectedVersion = new ReadOnlyStringWrapper();
+
+    public static ReadOnlyStringProperty selectedVersionProperty() {
+        return selectedVersion.getReadOnlyProperty();
+    }
+
+    // Guaranteed that the repository is loaded.
+    public static String getSelectedVersion() {
+        return selectedVersion.get();
+    }
+
+    private static final List<Consumer<Profile>> versionsListeners = new LinkedList<>();
+
+    public static void registerVersionsListener(Consumer<Profile> listener) {
+        Profile profile = getSelectedProfile();
+        if (profile != null && profile.getRepository().isLoaded())
+            listener.accept(profile);
+        versionsListeners.add(listener);
+    }
 }
@@ -1,6 +1,6 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
@@ -13,11 +13,14 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl.setting;

-import static org.jackhuang.hmcl.setting.ConfigHolder.config;
+import javafx.beans.binding.Bindings;
+import javafx.beans.binding.ObjectBinding;
+import javafx.beans.value.ObservableObjectValue;
+import org.jackhuang.hmcl.util.StringUtils;

 import java.net.Authenticator;
 import java.net.InetSocketAddress;
@@ -25,31 +28,14 @@ import java.net.PasswordAuthentication;
 import java.net.Proxy;
 import java.net.Proxy.Type;

-import org.jackhuang.hmcl.util.Lang;
-import org.jackhuang.hmcl.util.StringUtils;
-
-import javafx.beans.binding.Bindings;
-import javafx.beans.binding.ObjectBinding;
-import javafx.beans.value.ObservableObjectValue;
+import static org.jackhuang.hmcl.setting.ConfigHolder.config;
+import static org.jackhuang.hmcl.util.Logging.LOG;

 public final class ProxyManager {
    private ProxyManager() {
    }

-    private static ObjectBinding<Proxy> proxyProperty = Bindings.createObjectBinding(
-            () -> {
-                String host = config().getProxyHost();
-                Integer port = Lang.toIntOrNull(config().getProxyPort());
-                if (!config().hasProxy() || StringUtils.isBlank(host) || port == null || config().getProxyType() == Proxy.Type.DIRECT) {
-                    return Proxy.NO_PROXY;
-                } else {
-                    return new Proxy(config().getProxyType(), new InetSocketAddress(host, port));
-                }
-            },
-            config().proxyTypeProperty(),
-            config().proxyHostProperty(),
-            config().proxyPortProperty(),
-            config().hasProxyProperty());
+    private static ObjectBinding<Proxy> proxyProperty;

    public static Proxy getProxy() {
        return proxyProperty.get();
@@ -60,12 +46,29 @@ public final class ProxyManager {
    }

    static void init() {
-        proxyProperty.addListener(observable -> updateSystemProxy());
+        proxyProperty = Bindings.createObjectBinding(
+                () -> {
+                    String host = config().getProxyHost();
+                    int port = config().getProxyPort();
+                    if (!config().hasProxy() || StringUtils.isBlank(host) || config().getProxyType() == Proxy.Type.DIRECT) {
+                        return Proxy.NO_PROXY;
+                    } else {
+                        if (port < 0 || port > 0xFFFF) {
+                            LOG.warning("Illegal proxy port: " + port);
+                            return Proxy.NO_PROXY;
+                        }
+                        return new Proxy(config().getProxyType(), new InetSocketAddress(host, port));
+                    }
+                },
+                config().proxyTypeProperty(),
+                config().proxyHostProperty(),
+                config().proxyPortProperty(),
+                config().hasProxyProperty());

+        proxyProperty.addListener(any -> updateSystemProxy());
        updateSystemProxy();

        Authenticator.setDefault(new Authenticator() {
-
            @Override
            protected PasswordAuthentication getPasswordAuthentication() {
                if (config().hasProxyAuth()) {
@@ -1,7 +1,7 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
@@ -13,25 +13,21 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl.setting;

-import javafx.beans.value.ObservableValue;
-import javafx.scene.text.Font;
+import javafx.beans.binding.Bindings;
+import org.jackhuang.hmcl.Metadata;
+import org.jackhuang.hmcl.game.HMCLCacheRepository;
+import org.jackhuang.hmcl.util.CacheRepository;
+import org.jackhuang.hmcl.util.io.FileUtils;

-import org.jackhuang.hmcl.Launcher;
-import org.jackhuang.hmcl.download.DownloadProvider;
-import org.jackhuang.hmcl.event.*;
-import org.jackhuang.hmcl.task.Schedulers;
-import org.jackhuang.hmcl.util.*;
-
-import java.util.*;
-import java.util.stream.Collectors;
+import java.util.Locale;

 import static org.jackhuang.hmcl.setting.ConfigHolder.config;

-public class Settings {
+public final class Settings {

    private static Settings instance;

@@ -50,47 +46,31 @@ public class Settings {
    }

    private Settings() {
+        config().localizationProperty().addListener(unused -> updateSystemLocale());
+        updateSystemLocale();
+
+        DownloadProviders.init();
        ProxyManager.init();
        Accounts.init();
+        Profiles.init();
+        AuthlibInjectorServers.init();

-        checkProfileMap();
-
-        for (Map.Entry<String, Profile> profileEntry : getProfileMap().entrySet()) {
-            profileEntry.getValue().setName(profileEntry.getKey());
-            profileEntry.getValue().nameProperty().setChangedListener(this::profileNameChanged);
-            profileEntry.getValue().addPropertyChangedListener(e -> ConfigHolder.markConfigDirty());
-        }
-    }
-
-    public Font getFont() {
-        return Font.font(config().getFontFamily(), config().getFontSize());
-    }
-
-    public void setFont(Font font) {
-        config().setFontFamily(font.getFamily());
-        config().setFontSize(font.getSize());
-    }
-
-    public int getLogLines() {
-        return Math.max(config().getLogLines(), 100);
-    }
-
-    public void setLogLines(int logLines) {
-        config().setLogLines(logLines);
-    }
-
-    public boolean isCommonDirectoryDisabled() {
-        return config().getCommonDirType() == EnumCommonDirectory.DISABLED;
+        CacheRepository.setInstance(HMCLCacheRepository.REPOSITORY);
+        HMCLCacheRepository.REPOSITORY.directoryProperty().bind(Bindings.createStringBinding(() -> {
+            if (FileUtils.canCreateDirectory(getCommonDirectory())) {
+                return getCommonDirectory();
+            } else {
+                return getDefaultCommonDirectory();
+            }
+        }, config().commonDirectoryProperty(), config().commonDirTypeProperty()));
    }

    public static String getDefaultCommonDirectory() {
-        return Launcher.MINECRAFT_DIRECTORY.getAbsolutePath();
+        return Metadata.MINECRAFT_DIRECTORY.toString();
    }

    public String getCommonDirectory() {
        switch (config().getCommonDirType()) {
-            case DISABLED:
-                return null;
            case DEFAULT:
                return getDefaultCommonDirectory();
            case CUSTOM:
@@ -100,109 +80,7 @@ public class Settings {
        }
    }

-    /****************************************
-     *        DOWNLOAD PROVIDERS            *
-     ****************************************/
-
-    public DownloadProvider getDownloadProvider() {
-        return DownloadProviders.getDownloadProvider(config().getDownloadType());
-    }
-
-    public void setDownloadProvider(DownloadProvider downloadProvider) {
-        int index = DownloadProviders.DOWNLOAD_PROVIDERS.indexOf(downloadProvider);
-        if (index == -1)
-            throw new IllegalArgumentException("Unknown download provider: " + downloadProvider);
-        config().setDownloadType(index);
-    }
-
-    /****************************************
-     *               PROFILES               *
-     ****************************************/
-
-    public Profile getSelectedProfile() {
-        checkProfileMap();
-
-        if (!hasProfile(config().getSelectedProfile())) {
-            getProfileMap().keySet().stream().findFirst().ifPresent(selectedProfile -> {
-                config().setSelectedProfile(selectedProfile);
-            });
-            Schedulers.computation().schedule(this::onProfileChanged);
-        }
-        return getProfile(config().getSelectedProfile());
-    }
-
-    public void setSelectedProfile(Profile selectedProfile) {
-        if (hasProfile(selectedProfile.getName()) && !Objects.equals(selectedProfile.getName(), config().getSelectedProfile())) {
-            config().setSelectedProfile(selectedProfile.getName());
-            Schedulers.computation().schedule(this::onProfileChanged);
-        }
-    }
-
-    public Profile getProfile(String name) {
-        checkProfileMap();
-
-        Optional<Profile> p = name == null ? getProfileMap().values().stream().findFirst() : Optional.ofNullable(getProfileMap().get(name));
-        return p.orElse(null);
-    }
-
-    public boolean hasProfile(String name) {
-        return getProfileMap().containsKey(name);
-    }
-
-    public Map<String, Profile> getProfileMap() {
-        return config().getConfigurations();
-    }
-
-    public Collection<Profile> getProfiles() {
-        return getProfileMap().values().stream().filter(t -> StringUtils.isNotBlank(t.getName())).collect(Collectors.toList());
-    }
-
-    public void putProfile(Profile ver) {
-        if (StringUtils.isBlank(ver.getName()))
-            throw new IllegalArgumentException("Profile's name is empty");
-
-        getProfileMap().put(ver.getName(), ver);
-        Schedulers.computation().schedule(this::onProfileLoading);
-
-        ver.nameProperty().setChangedListener(this::profileNameChanged);
-    }
-
-    public void deleteProfile(Profile profile) {
-        deleteProfile(profile.getName());
-    }
-
-    public void deleteProfile(String profileName) {
-        getProfileMap().remove(profileName);
-        checkProfileMap();
-        Schedulers.computation().schedule(this::onProfileLoading);
-    }
-
-    private void checkProfileMap() {
-        if (getProfileMap().isEmpty()) {
-            Profile current = new Profile(Profiles.DEFAULT_PROFILE);
-            current.setUseRelativePath(true);
-            getProfileMap().put(Profiles.DEFAULT_PROFILE, current);
-
-            Profile home = new Profile(Profiles.HOME_PROFILE, Launcher.MINECRAFT_DIRECTORY);
-            getProfileMap().put(Profiles.HOME_PROFILE, home);
-        }
-    }
-
-    private void onProfileChanged() {
-        EventBus.EVENT_BUS.fireEvent(new ProfileChangedEvent(this, getSelectedProfile()));
-        getSelectedProfile().getRepository().refreshVersionsAsync().start();
-    }
-
-    private void profileNameChanged(ObservableValue<? extends String> observableValue, String oldValue, String newValue) {
-        getProfileMap().put(newValue, getProfileMap().remove(oldValue));
-    }
-
-    /**
-     * Start profiles loading process.
-     * Invoked by loading GUI phase.
-     */
-    public void onProfileLoading() {
-        EventBus.EVENT_BUS.fireEvent(new ProfileLoadingEvent(this, getProfiles()));
-        onProfileChanged();
+    private static void updateSystemLocale() {
+        Locale.setDefault(config().getLocalization().getLocale());
    }
 }
@@ -1,6 +1,6 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
@@ -13,45 +13,50 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl.setting;

+import com.google.gson.annotations.JsonAdapter;
+import com.google.gson.stream.JsonReader;
+import com.google.gson.stream.JsonWriter;
 import javafx.beans.binding.Bindings;
 import javafx.beans.binding.ObjectBinding;
 import javafx.scene.paint.Color;
-import org.jackhuang.hmcl.util.FileUtils;
-import org.jackhuang.hmcl.util.IOUtils;
 import org.jackhuang.hmcl.util.Logging;
-
-import com.google.gson.stream.JsonReader;
-import com.google.gson.stream.JsonWriter;
-
-import static org.jackhuang.hmcl.setting.ConfigHolder.config;
+import org.jackhuang.hmcl.util.ResourceNotFoundError;
+import org.jackhuang.hmcl.util.io.FileUtils;
+import org.jackhuang.hmcl.util.io.IOUtils;
+import org.jackhuang.hmcl.util.javafx.BindingMapping;

 import java.io.File;
 import java.io.IOException;
 import java.util.Optional;
 import java.util.logging.Level;

+import static org.jackhuang.hmcl.setting.ConfigHolder.config;
+
+@JsonAdapter(Theme.TypeAdapter.class)
 public class Theme {
    public static final Theme BLUE = new Theme("blue", "#5C6BC0");
-
+    public static final Color BLACK = Color.web("#292929");
    public static final Color[] SUGGESTED_COLORS = new Color[]{
            Color.web("#5C6BC0"), // blue
            Color.web("#283593"), // dark blue
            Color.web("#43A047"), // green
            Color.web("#E67E22"), // orange
            Color.web("#9C27B0"), // purple
-            Color.web("#F44336")  // red
+            Color.web("#B71C1C")  // red
    };

+    private final Color paint;
    private final String color;
    private final String name;

    Theme(String name, String color) {
        this.name = name;
        this.color = color;
+        this.paint = Color.web(color);
    }

    public String getName() {
@@ -75,21 +80,26 @@ public class Theme {
    }

    public String[] getStylesheets() {
+        Color textFill = getForegroundColor();
+
        String css;
        try {
            File temp = File.createTempFile("hmcl", ".css");
-            FileUtils.writeText(temp, IOUtils.readFullyAsString(Theme.class.getResourceAsStream("/assets/css/custom.css"))
+            FileUtils.writeText(temp, IOUtils.readFullyAsString(ResourceNotFoundError.getResourceAsStream("/assets/css/custom.css"))
                    .replace("%base-color%", color)
-                    .replace("%font-color%", getColorDisplayName(getForegroundColor())));
+                    .replace("%base-rippler-color%", String.format("rgba(%d, %d, %d, 0.3)", (int) Math.ceil(paint.getRed() * 256), (int) Math.ceil(paint.getGreen() * 256), (int) Math.ceil(paint.getBlue() * 256)))
+                    .replace("%disabled-font-color%", String.format("rgba(%d, %d, %d, 0.7)", (int) Math.ceil(textFill.getRed() * 256), (int) Math.ceil(textFill.getGreen() * 256), (int) Math.ceil(textFill.getBlue() * 256)))
+                    .replace("%font-color%", getColorDisplayName(getForegroundColor()))
+                    .replace("%font%", Optional.ofNullable(System.getProperty("hmcl.font.override")).map(fontFamily -> "-fx-font-family: " + fontFamily + ";").orElse("")));
            css = temp.toURI().toString();
-        } catch (IOException e) {
+        } catch (IOException | NullPointerException e) {
            Logging.LOG.log(Level.SEVERE, "Unable to create theme stylesheet. Fallback to blue theme.", e);
-            css = Theme.class.getResource("/assets/css/blue.css").toExternalForm();
+            css = "/assets/css/blue.css";
        }

        return new String[]{
                css,
-                Theme.class.getResource("/assets/css/root.css").toExternalForm()
+                "/assets/css/root.css"
        };
    }

@@ -130,11 +140,12 @@ public class Theme {
    }

    public static ObjectBinding<Color> foregroundFillBinding() {
-        return Bindings.createObjectBinding(() -> config().getTheme().getForegroundColor(), config().themeProperty());
+        return BindingMapping.of(config().themeProperty())
+                .map(Theme::getForegroundColor);
    }

    public static ObjectBinding<Color> blackFillBinding() {
-        return Bindings.createObjectBinding(() -> Color.BLACK);
+        return Bindings.createObjectBinding(() -> BLACK);
    }

    public static ObjectBinding<Color> whiteFillBinding() {
@@ -1,6 +1,6 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
@@ -13,33 +13,36 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl.setting;

 import com.google.gson.*;
+import com.google.gson.annotations.JsonAdapter;
 import javafx.beans.InvalidationListener;
+import javafx.beans.property.*;
+import org.jackhuang.hmcl.game.GameDirectoryType;
+import org.jackhuang.hmcl.game.NativesDirectoryType;
+import org.jackhuang.hmcl.util.Lang;
+import org.jackhuang.hmcl.util.StringUtils;
+import org.jackhuang.hmcl.util.platform.JavaVersion;
+import org.jackhuang.hmcl.util.platform.OperatingSystem;
+import org.jackhuang.hmcl.util.platform.Platform;

-import org.jackhuang.hmcl.Metadata;
-import org.jackhuang.hmcl.game.LaunchOptions;
-import org.jackhuang.hmcl.util.*;
-
-import java.io.File;
 import java.io.IOException;
 import java.lang.reflect.Type;
+import java.nio.file.InvalidPathException;
+import java.nio.file.Paths;
 import java.util.List;
 import java.util.Optional;
 import java.util.stream.Collectors;

-import static org.jackhuang.hmcl.setting.ConfigHolder.config;
-
 /**
 *
 * @author huangyuhui
 */
-public final class VersionSetting {
-
-    public transient String id;
+@JsonAdapter(VersionSetting.Serializer.class)
+public final class VersionSetting implements Cloneable {

    private boolean global = false;

@@ -51,9 +54,9 @@ public final class VersionSetting {
        this.global = global;
    }

-    private final ImmediateBooleanProperty usesGlobalProperty = new ImmediateBooleanProperty(this, "usesGlobal", false);
+    private final BooleanProperty usesGlobalProperty = new SimpleBooleanProperty(this, "usesGlobal", false);

-    public ImmediateBooleanProperty usesGlobalProperty() {
+    public BooleanProperty usesGlobalProperty() {
        return usesGlobalProperty;
    }

@@ -62,7 +65,7 @@ public final class VersionSetting {
     * 1. Global settings.
     * 2. Version settings.
     * If a version claims that it uses global settings, its version setting will be disabled.
-     *
+     * <p>
     * Defaults false because if one version uses global first, custom version file will not be generated.
     */
    public boolean isUsesGlobal() {
@@ -75,9 +78,9 @@ public final class VersionSetting {

    // java

-    private final ImmediateStringProperty javaProperty = new ImmediateStringProperty(this, "java", "");
+    private final StringProperty javaProperty = new SimpleStringProperty(this, "java", "");

-    public ImmediateStringProperty javaProperty() {
+    public StringProperty javaProperty() {
        return javaProperty;
    }

@@ -101,7 +104,7 @@ public final class VersionSetting {
        setDefaultJavaPath(null);
    }

-    private final ImmediateStringProperty defaultJavaPathProperty = new ImmediateStringProperty(this, "defaultJavaPath", "");
+    private final StringProperty defaultJavaPathProperty = new SimpleStringProperty(this, "defaultJavaPath", "");

    /**
     * Path to Java executable, or null if user customizes java directory.
@@ -115,9 +118,42 @@ public final class VersionSetting {
        defaultJavaPathProperty.set(defaultJavaPath);
    }

-    private final ImmediateStringProperty javaDirProperty = new ImmediateStringProperty(this, "javaDir", "");
+    /**
+     * 0 - .minecraft/versions/&lt;version&gt;/natives/<br/>
+     */
+    private final ObjectProperty<NativesDirectoryType> nativesDirTypeProperty = new SimpleObjectProperty<>(this, "nativesDirType", NativesDirectoryType.VERSION_FOLDER);

-    public ImmediateStringProperty javaDirProperty() {
+    public ObjectProperty<NativesDirectoryType> nativesDirTypeProperty() {
+        return nativesDirTypeProperty;
+    }
+
+    public NativesDirectoryType getNativesDirType() {
+        return nativesDirTypeProperty.get();
+    }
+
+    public void setNativesDirType(NativesDirectoryType nativesDirType) {
+        nativesDirTypeProperty.set(nativesDirType);
+    }
+
+    // Path to lwjgl natives directory
+
+    private final StringProperty nativesDirProperty = new SimpleStringProperty(this, "nativesDirProperty", "");
+
+    public StringProperty nativesDirProperty() {
+        return nativesDirProperty;
+    }
+
+    public String getNativesDir() {
+        return nativesDirProperty.get();
+    }
+
+    public void setNativesDir(String nativesDir) {
+        nativesDirProperty.set(nativesDir);
+    }
+
+    private final StringProperty javaDirProperty = new SimpleStringProperty(this, "javaDir", "");
+
+    public StringProperty javaDirProperty() {
        return javaDirProperty;
    }

@@ -132,9 +168,9 @@ public final class VersionSetting {
        javaDirProperty.set(javaDir);
    }

-    private final ImmediateStringProperty wrapperProperty = new ImmediateStringProperty(this, "wrapper", "");
+    private final StringProperty wrapperProperty = new SimpleStringProperty(this, "wrapper", "");

-    public ImmediateStringProperty wrapperProperty() {
+    public StringProperty wrapperProperty() {
        return wrapperProperty;
    }

@@ -149,9 +185,9 @@ public final class VersionSetting {
        wrapperProperty.set(wrapper);
    }

-    private final ImmediateStringProperty permSizeProperty = new ImmediateStringProperty(this, "permSize", "");
+    private final StringProperty permSizeProperty = new SimpleStringProperty(this, "permSize", "");

-    public ImmediateStringProperty permSizeProperty() {
+    public StringProperty permSizeProperty() {
        return permSizeProperty;
    }

@@ -166,9 +202,9 @@ public final class VersionSetting {
        permSizeProperty.set(permSize);
    }

-    private final ImmediateIntegerProperty maxMemoryProperty = new ImmediateIntegerProperty(this, "maxMemory", OperatingSystem.SUGGESTED_MEMORY);
+    private final IntegerProperty maxMemoryProperty = new SimpleIntegerProperty(this, "maxMemory", OperatingSystem.SUGGESTED_MEMORY);

-    public ImmediateIntegerProperty maxMemoryProperty() {
+    public IntegerProperty maxMemoryProperty() {
        return maxMemoryProperty;
    }

@@ -186,9 +222,9 @@ public final class VersionSetting {
    /**
     * The minimum memory that JVM can allocate for heap.
     */
-    private final ImmediateObjectProperty<Integer> minMemoryProperty = new ImmediateObjectProperty<>(this, "minMemory", null);
+    private final ObjectProperty<Integer> minMemoryProperty = new SimpleObjectProperty<>(this, "minMemory", null);

-    public ImmediateObjectProperty<Integer> minMemoryProperty() {
+    public ObjectProperty<Integer> minMemoryProperty() {
        return minMemoryProperty;
    }

@@ -200,9 +236,9 @@ public final class VersionSetting {
        minMemoryProperty.set(minMemory);
    }

-    private final ImmediateStringProperty preLaunchCommandProperty = new ImmediateStringProperty(this, "precalledCommand", "");
+    private final StringProperty preLaunchCommandProperty = new SimpleStringProperty(this, "precalledCommand", "");

-    public ImmediateStringProperty preLaunchCommandProperty() {
+    public StringProperty preLaunchCommandProperty() {
        return preLaunchCommandProperty;
    }

@@ -220,9 +256,9 @@ public final class VersionSetting {

    // options

-    private final ImmediateStringProperty javaArgsProperty = new ImmediateStringProperty(this, "javaArgs", "");
+    private final StringProperty javaArgsProperty = new SimpleStringProperty(this, "javaArgs", "");

-    public ImmediateStringProperty javaArgsProperty() {
+    public StringProperty javaArgsProperty() {
        return javaArgsProperty;
    }

@@ -237,9 +273,9 @@ public final class VersionSetting {
        javaArgsProperty.set(javaArgs);
    }

-    private final ImmediateStringProperty minecraftArgsProperty = new ImmediateStringProperty(this, "minecraftArgs", "");
+    private final StringProperty minecraftArgsProperty = new SimpleStringProperty(this, "minecraftArgs", "");

-    public ImmediateStringProperty minecraftArgsProperty() {
+    public StringProperty minecraftArgsProperty() {
        return minecraftArgsProperty;
    }

@@ -254,9 +290,9 @@ public final class VersionSetting {
        minecraftArgsProperty.set(minecraftArgs);
    }

-    private final ImmediateBooleanProperty noJVMArgsProperty = new ImmediateBooleanProperty(this, "noJVMArgs", false);
+    private final BooleanProperty noJVMArgsProperty = new SimpleBooleanProperty(this, "noJVMArgs", false);

-    public ImmediateBooleanProperty noJVMArgsProperty() {
+    public BooleanProperty noJVMArgsProperty() {
        return noJVMArgsProperty;
    }

@@ -271,9 +307,26 @@ public final class VersionSetting {
        noJVMArgsProperty.set(noJVMArgs);
    }

-    private final ImmediateBooleanProperty notCheckGameProperty = new ImmediateBooleanProperty(this, "notCheckGame", false);
+    private final BooleanProperty notCheckJVMProperty = new SimpleBooleanProperty(this, "notCheckJVM", false);

-    public ImmediateBooleanProperty notCheckGameProperty() {
+    public BooleanProperty notCheckJVMProperty() {
+        return notCheckJVMProperty;
+    }
+
+    /**
+     * True if HMCL does not check JVM validity.
+     */
+    public boolean isNotCheckJVM() {
+        return notCheckJVMProperty.get();
+    }
+
+    public void setNotCheckJVM(boolean notCheckJVM) {
+        notCheckJVMProperty.set(notCheckJVM);
+    }
+
+    private final BooleanProperty notCheckGameProperty = new SimpleBooleanProperty(this, "notCheckGame", false);
+
+    public BooleanProperty notCheckGameProperty() {
        return notCheckGameProperty;
    }

@@ -288,9 +341,9 @@ public final class VersionSetting {
        notCheckGameProperty.set(notCheckGame);
    }

-    private final ImmediateBooleanProperty showLogsProperty = new ImmediateBooleanProperty(this, "showLogs", false);
+    private final BooleanProperty showLogsProperty = new SimpleBooleanProperty(this, "showLogs", false);

-    public ImmediateBooleanProperty showLogsProperty() {
+    public BooleanProperty showLogsProperty() {
        return showLogsProperty;
    }

@@ -307,15 +360,15 @@ public final class VersionSetting {

    // Minecraft settings.

-    private final ImmediateStringProperty serverIpProperty = new ImmediateStringProperty(this, "serverIp", "");
+    private final StringProperty serverIpProperty = new SimpleStringProperty(this, "serverIp", "");

-    public ImmediateStringProperty serverIpProperty() {
+    public StringProperty serverIpProperty() {
        return serverIpProperty;
    }

    /**
-     * The server ip that will be entered after Minecraft successfully loaded immediately.
-     *
+     * The server ip that will be entered after Minecraft successfully loaded ly.
+     * <p>
     * Format: ip:port or without port.
     */
    public String getServerIp() {
@@ -327,9 +380,9 @@ public final class VersionSetting {
    }


-    private final ImmediateBooleanProperty fullscreenProperty = new ImmediateBooleanProperty(this, "fullscreen", false);
+    private final BooleanProperty fullscreenProperty = new SimpleBooleanProperty(this, "fullscreen", false);

-    public ImmediateBooleanProperty fullscreenProperty() {
+    public BooleanProperty fullscreenProperty() {
        return fullscreenProperty;
    }

@@ -344,15 +397,15 @@ public final class VersionSetting {
        fullscreenProperty.set(fullscreen);
    }

-    private final ImmediateIntegerProperty widthProperty = new ImmediateIntegerProperty(this, "width", 854);
+    private final IntegerProperty widthProperty = new SimpleIntegerProperty(this, "width", 854);

-    public ImmediateIntegerProperty widthProperty() {
+    public IntegerProperty widthProperty() {
        return widthProperty;
    }

    /**
     * The width of Minecraft window, defaults 800.
-     *
+     * <p>
     * The field saves int value.
     * String type prevents unexpected value from JsonParseException.
     * We can only reset this field instead of recreating the whole setting file.
@@ -366,15 +419,15 @@ public final class VersionSetting {
    }


-    private final ImmediateIntegerProperty heightProperty = new ImmediateIntegerProperty(this, "height", 480);
+    private final IntegerProperty heightProperty = new SimpleIntegerProperty(this, "height", 480);

-    public ImmediateIntegerProperty heightProperty() {
+    public IntegerProperty heightProperty() {
        return heightProperty;
    }

    /**
     * The height of Minecraft window, defaults 480.
-     *
+     * <p>
     * The field saves int value.
     * String type prevents unexpected value from JsonParseException.
     * We can only reset this field instead of recreating the whole setting file.
@@ -391,26 +444,26 @@ public final class VersionSetting {
     * 0 - .minecraft<br/>
     * 1 - .minecraft/versions/&lt;version&gt;/<br/>
     */
-    private final ImmediateObjectProperty<EnumGameDirectory> gameDirTypeProperty = new ImmediateObjectProperty<>(this, "gameDirType", EnumGameDirectory.ROOT_FOLDER);
+    private final ObjectProperty<GameDirectoryType> gameDirTypeProperty = new SimpleObjectProperty<>(this, "gameDirType", GameDirectoryType.ROOT_FOLDER);

-    public ImmediateObjectProperty<EnumGameDirectory> gameDirTypeProperty() {
+    public ObjectProperty<GameDirectoryType> gameDirTypeProperty() {
        return gameDirTypeProperty;
    }

-    public EnumGameDirectory getGameDirType() {
+    public GameDirectoryType getGameDirType() {
        return gameDirTypeProperty.get();
    }

-    public void setGameDirType(EnumGameDirectory gameDirType) {
+    public void setGameDirType(GameDirectoryType gameDirType) {
        gameDirTypeProperty.set(gameDirType);
    }

    /**
     * Your custom gameDir
     */
-    private final ImmediateStringProperty gameDirProperty = new ImmediateStringProperty(this, "gameDir", "");
+    private final StringProperty gameDirProperty = new SimpleStringProperty(this, "gameDir", "");

-    public ImmediateStringProperty gameDirProperty() {
+    public StringProperty gameDirProperty() {
        return gameDirProperty;
    }

@@ -429,9 +482,9 @@ public final class VersionSetting {
     * 1 - Hide the launcher when the game starts.<br/>
     * 2 - Keep the launcher open.<br/>
     */
-    private final ImmediateObjectProperty<LauncherVisibility> launcherVisibilityProperty = new ImmediateObjectProperty<>(this, "launcherVisibility", LauncherVisibility.HIDE);
+    private final ObjectProperty<LauncherVisibility> launcherVisibilityProperty = new SimpleObjectProperty<>(this, "launcherVisibility", LauncherVisibility.HIDE);

-    public ImmediateObjectProperty<LauncherVisibility> launcherVisibilityProperty() {
+    public ObjectProperty<LauncherVisibility> launcherVisibilityProperty() {
        return launcherVisibilityProperty;
    }

@@ -444,18 +497,25 @@ public final class VersionSetting {
    }

    public JavaVersion getJavaVersion() throws InterruptedException {
+        return getJavaVersion(true);
+    }
+
+    public JavaVersion getJavaVersion(boolean checkJava) throws InterruptedException {
        // TODO: lazy initialization may result in UI suspension.
        if (StringUtils.isBlank(getJava()))
            setJava(StringUtils.isBlank(getJavaDir()) ? "Default" : "Custom");
        if ("Default".equals(getJava())) return JavaVersion.fromCurrentEnvironment();
        else if (isUsesCustomJavaDir()) {
            try {
-                return JavaVersion.fromExecutable(new File(getJavaDir()));
-            } catch (IOException e) {
+                if (checkJava)
+                    return JavaVersion.fromExecutable(Paths.get(getJavaDir()));
+                else
+                    return new JavaVersion(Paths.get(getJavaDir()), "", Platform.PLATFORM);
+            } catch (IOException | InvalidPathException e) {
                return null; // Custom Java Directory not found,
            }
        } else if (StringUtils.isNotBlank(getJava())) {
-            List<JavaVersion> matchedJava = JavaVersion.getJREs().stream()
+            List<JavaVersion> matchedJava = JavaVersion.getJavas().stream()
                    .filter(java -> java.getVersion().equals(getJava()))
                    .collect(Collectors.toList());
            if (matchedJava.isEmpty()) {
@@ -488,6 +548,7 @@ public final class VersionSetting {
        minecraftArgsProperty.addListener(listener);
        noJVMArgsProperty.addListener(listener);
        notCheckGameProperty.addListener(listener);
+        notCheckJVMProperty.addListener(listener);
        showLogsProperty.addListener(listener);
        serverIpProperty.addListener(listener);
        fullscreenProperty.addListener(listener);
@@ -497,40 +558,40 @@ public final class VersionSetting {
        gameDirProperty.addListener(listener);
        launcherVisibilityProperty.addListener(listener);
        defaultJavaPathProperty.addListener(listener);
+        nativesDirProperty.addListener(listener);
+        nativesDirTypeProperty.addListener(listener);
    }

-    public LaunchOptions toLaunchOptions(File gameDir) throws InterruptedException {
-        JavaVersion javaVersion = Optional.ofNullable(getJavaVersion()).orElse(JavaVersion.fromCurrentEnvironment());
-        return new LaunchOptions.Builder()
-                .setGameDir(gameDir)
-                .setJava(javaVersion)
-                .setVersionName(Metadata.TITLE)
-                .setProfileName(Metadata.TITLE)
-                .setMinecraftArgs(getMinecraftArgs())
-                .setJavaArgs(getJavaArgs())
-                .setMaxMemory(getMaxMemory())
-                .setMinMemory(getMinMemory())
-                .setMetaspace(Lang.toIntOrNull(getPermSize()))
-                .setWidth(getWidth())
-                .setHeight(getHeight())
-                .setFullscreen(isFullscreen())
-                .setServerIp(getServerIp())
-                .setWrapper(getWrapper())
-                .setProxyHost(config().getProxyHost())
-                .setProxyPort(config().getProxyPort())
-                .setProxyUser(config().getProxyUser())
-                .setProxyPass(config().getProxyPass())
-                .setPrecalledCommand(getPreLaunchCommand())
-                .setNoGeneratedJVMArgs(isNoJVMArgs())
-                .create();
+    @Override
+    public VersionSetting clone() {
+        VersionSetting versionSetting = new VersionSetting();
+        versionSetting.setUsesGlobal(isUsesGlobal());
+        versionSetting.setJava(getJava());
+        versionSetting.setDefaultJavaPath(getDefaultJavaPath());
+        versionSetting.setJavaDir(getJavaDir());
+        versionSetting.setWrapper(getWrapper());
+        versionSetting.setPermSize(getPermSize());
+        versionSetting.setMaxMemory(getMaxMemory());
+        versionSetting.setMinMemory(getMinMemory());
+        versionSetting.setPreLaunchCommand(getPreLaunchCommand());
+        versionSetting.setJavaArgs(getJavaArgs());
+        versionSetting.setMinecraftArgs(getMinecraftArgs());
+        versionSetting.setNoJVMArgs(isNoJVMArgs());
+        versionSetting.setNotCheckGame(isNotCheckGame());
+        versionSetting.setNotCheckJVM(isNotCheckJVM());
+        versionSetting.setShowLogs(isShowLogs());
+        versionSetting.setServerIp(getServerIp());
+        versionSetting.setFullscreen(isFullscreen());
+        versionSetting.setWidth(getWidth());
+        versionSetting.setHeight(getHeight());
+        versionSetting.setGameDirType(getGameDirType());
+        versionSetting.setGameDir(getGameDir());
+        versionSetting.setLauncherVisibility(getLauncherVisibility());
+        versionSetting.setNativesDir(getNativesDir());
+        return versionSetting;
    }

    public static class Serializer implements JsonSerializer<VersionSetting>, JsonDeserializer<VersionSetting> {
-        public static final Serializer INSTANCE = new Serializer();
-
-        private Serializer() {
-        }
-
        @Override
        public JsonElement serialize(VersionSetting src, Type typeOfSrc, JsonSerializationContext context) {
            if (src == null) return JsonNull.INSTANCE;
@@ -552,18 +613,21 @@ public final class VersionSetting {
            obj.addProperty("fullscreen", src.isFullscreen());
            obj.addProperty("noJVMArgs", src.isNoJVMArgs());
            obj.addProperty("notCheckGame", src.isNotCheckGame());
+            obj.addProperty("notCheckJVM", src.isNotCheckJVM());
            obj.addProperty("showLogs", src.isShowLogs());
            obj.addProperty("gameDir", src.getGameDir());
            obj.addProperty("launcherVisibility", src.getLauncherVisibility().ordinal());
            obj.addProperty("gameDirType", src.getGameDirType().ordinal());
            obj.addProperty("defaultJavaPath", src.getDefaultJavaPath());
+            obj.addProperty("nativesDir", src.getNativesDir());
+            obj.addProperty("nativesDirType", src.getNativesDirType().ordinal());

            return obj;
        }

        @Override
        public VersionSetting deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context) throws JsonParseException {
-            if (json == null || json == JsonNull.INSTANCE || !(json instanceof JsonObject))
+            if (json == JsonNull.INSTANCE || !(json instanceof JsonObject))
                return null;
            JsonObject obj = (JsonObject) json;

@@ -586,13 +650,16 @@ public final class VersionSetting {
            vs.setJava(Optional.ofNullable(obj.get("java")).map(JsonElement::getAsString).orElse(""));
            vs.setWrapper(Optional.ofNullable(obj.get("wrapper")).map(JsonElement::getAsString).orElse(""));
            vs.setGameDir(Optional.ofNullable(obj.get("gameDir")).map(JsonElement::getAsString).orElse(""));
+            vs.setNativesDir(Optional.ofNullable(obj.get("nativesDir")).map(JsonElement::getAsString).orElse(""));
            vs.setFullscreen(Optional.ofNullable(obj.get("fullscreen")).map(JsonElement::getAsBoolean).orElse(false));
            vs.setNoJVMArgs(Optional.ofNullable(obj.get("noJVMArgs")).map(JsonElement::getAsBoolean).orElse(false));
            vs.setNotCheckGame(Optional.ofNullable(obj.get("notCheckGame")).map(JsonElement::getAsBoolean).orElse(false));
+            vs.setNotCheckJVM(Optional.ofNullable(obj.get("notCheckJVM")).map(JsonElement::getAsBoolean).orElse(false));
            vs.setShowLogs(Optional.ofNullable(obj.get("showLogs")).map(JsonElement::getAsBoolean).orElse(false));
            vs.setLauncherVisibility(LauncherVisibility.values()[Optional.ofNullable(obj.get("launcherVisibility")).map(JsonElement::getAsInt).orElse(1)]);
-            vs.setGameDirType(EnumGameDirectory.values()[Optional.ofNullable(obj.get("gameDirType")).map(JsonElement::getAsInt).orElse(0)]);
+            vs.setGameDirType(GameDirectoryType.values()[Optional.ofNullable(obj.get("gameDirType")).map(JsonElement::getAsInt).orElse(0)]);
            vs.setDefaultJavaPath(Optional.ofNullable(obj.get("defaultJavaPath")).map(JsonElement::getAsString).orElse(null));
+            vs.setNativesDirType(NativesDirectoryType.values()[Optional.ofNullable(obj.get("nativesDirType")).map(JsonElement::getAsInt).orElse(0)]);

            return vs;
        }
@@ -1,153 +0,0 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2017  huangyuhui <huanghongxun2008@126.com>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
- */
-package org.jackhuang.hmcl.ui;
-
-import com.jfoenix.controls.JFXButton;
-import com.jfoenix.controls.JFXProgressBar;
-import javafx.beans.property.ObjectProperty;
-import javafx.beans.property.SimpleObjectProperty;
-import javafx.beans.property.SimpleStringProperty;
-import javafx.beans.property.StringProperty;
-import javafx.fxml.FXML;
-import javafx.scene.control.Label;
-import javafx.scene.image.Image;
-import javafx.scene.layout.BorderPane;
-import javafx.scene.layout.StackPane;
-
-import org.jackhuang.hmcl.auth.Account;
-import org.jackhuang.hmcl.auth.authlibinjector.AuthlibInjectorAccount;
-import org.jackhuang.hmcl.auth.authlibinjector.AuthlibInjectorServer;
-import org.jackhuang.hmcl.auth.offline.OfflineAccount;
-import org.jackhuang.hmcl.auth.yggdrasil.YggdrasilAccount;
-import org.jackhuang.hmcl.game.AccountHelper;
-import org.jackhuang.hmcl.setting.Accounts;
-import org.jackhuang.hmcl.setting.Theme;
-import org.jackhuang.hmcl.task.Schedulers;
-import org.jackhuang.hmcl.ui.construct.AdvancedListItem;
-import org.jackhuang.hmcl.ui.construct.ComponentList;
-import org.jackhuang.hmcl.ui.wizard.DecoratorPage;
-
-import static org.jackhuang.hmcl.ui.FXUtils.installTooltip;
-import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
-
-import java.util.Optional;
-
-public class AccountPage extends StackPane implements DecoratorPage {
-    private final StringProperty title;
-    private final ObjectProperty<Runnable> onDelete = new SimpleObjectProperty<>(this, "onDelete");
-    private final AdvancedListItem item;
-    private final Account account;
-
-    @FXML
-    private Label lblType;
-    @FXML
-    private Label lblServer;
-    @FXML
-    private Label lblCharacter;
-    @FXML
-    private Label lblEmail;
-    @FXML
-    private BorderPane paneServer;
-    @FXML
-    private BorderPane paneEmail;
-    @FXML
-    private ComponentList componentList;
-    @FXML
-    private JFXButton btnDelete;
-    @FXML
-    private JFXButton btnRefresh;
-    @FXML
-    private JFXProgressBar progressBar;
-
-    public AccountPage(Account account, AdvancedListItem item) {
-        this.account = account;
-        this.item = item;
-
-        title = new SimpleStringProperty(this, "title", i18n("account") + " - " + account.getCharacter());
-
-        FXUtils.loadFXML(this, "/assets/fxml/account.fxml");
-
-        if (account instanceof AuthlibInjectorAccount) {
-            AuthlibInjectorServer server = ((AuthlibInjectorAccount) account).getServer();
-            lblServer.setText(server.getName());
-            installTooltip(lblServer, server.getUrl());
-        } else {
-            componentList.removeChildren(paneServer);
-
-            if (account instanceof OfflineAccount) {
-                componentList.removeChildren(paneEmail);
-            }
-        }
-
-        btnDelete.setGraphic(SVG.delete(Theme.blackFillBinding(), 15, 15));
-        btnRefresh.setGraphic(SVG.refresh(Theme.blackFillBinding(), 15, 15));
-
-        lblCharacter.setText(account.getCharacter());
-        lblType.setText(Accounts.getAccountTypeName(account));
-        lblEmail.setText(account.getUsername());
-
-        btnRefresh.setVisible(account instanceof YggdrasilAccount);
-    }
-
-    @FXML
-    private void onDelete() {
-        Accounts.getAccounts().remove(account);
-        Optional.ofNullable(onDelete.get()).ifPresent(Runnable::run);
-    }
-
-    @FXML
-    private void onRefresh() {
-        if (account instanceof YggdrasilAccount) {
-            progressBar.setVisible(true);
-            AccountHelper.refreshSkinAsync((YggdrasilAccount) account)
-                    .finalized(Schedulers.javafx(), (variables, isDependentsSucceeded) -> {
-                        progressBar.setVisible(false);
-
-                        if (isDependentsSucceeded) {
-                            Image image = AccountHelper.getSkin((YggdrasilAccount) account, 4);
-                            item.setImage(image, AccountHelper.getViewport(4));
-                        }
-                    }).start();
-        }
-    }
-
-    public String getTitle() {
-        return title.get();
-    }
-
-    @Override
-    public StringProperty titleProperty() {
-        return title;
-    }
-
-    public void setTitle(String title) {
-        this.title.set(title);
-    }
-
-    public Runnable getOnDelete() {
-        return onDelete.get();
-    }
-
-    public ObjectProperty<Runnable> onDeleteProperty() {
-        return onDelete;
-    }
-
-    public void setOnDelete(Runnable onDelete) {
-        this.onDelete.set(onDelete);
-    }
-}
@@ -1,78 +0,0 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
- */
-package org.jackhuang.hmcl.ui;
-
-import static org.jackhuang.hmcl.ui.FXUtils.loadFXML;
-import static org.jackhuang.hmcl.ui.FXUtils.smoothScrolling;
-import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
-
-import org.jackhuang.hmcl.auth.authlibinjector.AuthlibInjectorServer;
-import org.jackhuang.hmcl.ui.wizard.DecoratorPage;
-import org.jackhuang.hmcl.util.MappedObservableList;
-
-import javafx.beans.binding.Bindings;
-import javafx.beans.property.SimpleStringProperty;
-import javafx.beans.property.StringProperty;
-import javafx.collections.ObservableList;
-import javafx.fxml.FXML;
-import javafx.scene.control.ScrollPane;
-import javafx.scene.layout.StackPane;
-import javafx.scene.layout.VBox;
-
-import static org.jackhuang.hmcl.setting.ConfigHolder.config;
-
-public class AuthlibInjectorServersPage extends StackPane implements DecoratorPage {
-    private final StringProperty title = new SimpleStringProperty(this, "title", i18n("account.injector.manage.title"));
-
-    @FXML private ScrollPane scrollPane;
-    @FXML private VBox listPane;
-    @FXML private StackPane contentPane;
-
-    private ObservableList<AuthlibInjectorServerItem> serverItems;
-
-    public AuthlibInjectorServersPage() {
-        loadFXML(this, "/assets/fxml/authlib-injector-servers.fxml");
-        smoothScrolling(scrollPane);
-
-        serverItems = MappedObservableList.create(config().getAuthlibInjectorServers(), this::createServerItem);
-        Bindings.bindContent(listPane.getChildren(), serverItems);
-    }
-
-    private AuthlibInjectorServerItem createServerItem(AuthlibInjectorServer server) {
-        return new AuthlibInjectorServerItem(server,
-                item -> config().getAuthlibInjectorServers().remove(item.getServer()));
-    }
-
-    @FXML
-    private void onAdd() {
-        Controllers.dialog(new AddAuthlibInjectorServerPane());
-    }
-
-    public String getTitle() {
-        return title.get();
-    }
-
-    @Override
-    public StringProperty titleProperty() {
-        return title;
-    }
-
-    public void setTitle(String title) {
-        this.title.set(title);
-    }
-}
@@ -0,0 +1,20 @@
+package org.jackhuang.hmcl.ui;
+
+import java.awt.*;
+import java.lang.reflect.Method;
+
+public final class AwtUtils {
+    private AwtUtils() {
+    }
+
+    public static void setAppleIcon(Image image) {
+        try {
+            Class<?> taskbarClass = Class.forName("java.awt.TaskBar");
+            Method getTaskBarMethod = taskbarClass.getDeclaredMethod("getTaskBar");
+            Object taskBar = getTaskBarMethod.invoke(null);
+            Method setIconImageMethod = taskbarClass.getDeclaredMethod("setIconImage", Image.class);
+            setIconImageMethod.invoke(taskBar, image);
+        } catch (Throwable ignore) {
+        }
+    }
+}
@@ -1,7 +1,7 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
@@ -13,41 +13,86 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl.ui;

+import javafx.beans.property.DoubleProperty;
+import javafx.beans.property.SimpleDoubleProperty;
 import javafx.scene.Node;
 import javafx.scene.Scene;
-import javafx.scene.image.Image;
 import javafx.scene.layout.Region;
+import javafx.scene.paint.Color;
 import javafx.stage.Stage;
+import javafx.stage.StageStyle;
 import org.jackhuang.hmcl.Launcher;
 import org.jackhuang.hmcl.Metadata;
-import org.jackhuang.hmcl.setting.Settings;
+import org.jackhuang.hmcl.download.java.JavaRepository;
+import org.jackhuang.hmcl.mod.curse.CurseModManager;
+import org.jackhuang.hmcl.setting.EnumCommonDirectory;
+import org.jackhuang.hmcl.setting.Profiles;
 import org.jackhuang.hmcl.task.Task;
 import org.jackhuang.hmcl.task.TaskExecutor;
+import org.jackhuang.hmcl.ui.account.AuthlibInjectorServersPage;
+import org.jackhuang.hmcl.ui.account.MicrosoftAccountLoginStage;
+import org.jackhuang.hmcl.ui.animation.ContainerAnimations;
 import org.jackhuang.hmcl.ui.construct.InputDialogPane;
-import org.jackhuang.hmcl.ui.construct.MessageBox;
 import org.jackhuang.hmcl.ui.construct.MessageDialogPane;
+import org.jackhuang.hmcl.ui.construct.MessageDialogPane.MessageType;
+import org.jackhuang.hmcl.ui.construct.PromptDialogPane;
 import org.jackhuang.hmcl.ui.construct.TaskExecutorDialogPane;
+import org.jackhuang.hmcl.ui.decorator.DecoratorController;
+import org.jackhuang.hmcl.ui.download.ModpackInstallWizardProvider;
+import org.jackhuang.hmcl.ui.main.RootPage;
+import org.jackhuang.hmcl.ui.versions.GameListPage;
+import org.jackhuang.hmcl.ui.versions.ModDownloadListPage;
+import org.jackhuang.hmcl.ui.versions.VersionPage;
+import org.jackhuang.hmcl.ui.versions.Versions;
 import org.jackhuang.hmcl.util.FutureCallback;
-import org.jackhuang.hmcl.util.JavaVersion;
-
-import static org.jackhuang.hmcl.setting.ConfigHolder.config;
+import org.jackhuang.hmcl.util.Lazy;
+import org.jackhuang.hmcl.util.Logging;
+import org.jackhuang.hmcl.util.io.FileUtils;
+import org.jackhuang.hmcl.util.platform.JavaVersion;

+import java.io.File;
+import java.util.List;
+import java.util.concurrent.CompletableFuture;
 import java.util.function.Consumer;

+import static org.jackhuang.hmcl.setting.ConfigHolder.config;
+import static org.jackhuang.hmcl.ui.FXUtils.newImage;
+import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
+
 public final class Controllers {
+    private static DoubleProperty stageWidth = new SimpleDoubleProperty();
+    private static DoubleProperty stageHeight = new SimpleDoubleProperty();

    private static Scene scene;
    private static Stage stage;
-    private static MainPage mainPage = null;
-    private static SettingsPage settingsPage = null;
-    private static VersionPage versionPage = null;
+    private static Lazy<VersionPage> versionPage = new Lazy<>(VersionPage::new);
+    private static Lazy<GameListPage> gameListPage = new Lazy<>(() -> {
+        GameListPage gameListPage = new GameListPage();
+        gameListPage.selectedProfileProperty().bindBidirectional(Profiles.selectedProfileProperty());
+        gameListPage.profilesProperty().bindContent(Profiles.profilesProperty());
+        FXUtils.applyDragListener(gameListPage, it -> "zip".equals(FileUtils.getExtension(it)), modpacks -> {
+            File modpack = modpacks.get(0);
+            Controllers.getDecorator().startWizard(new ModpackInstallWizardProvider(Profiles.getSelectedProfile(), modpack), i18n("install.modpack"));
+        });
+        return gameListPage;
+    });
    private static AuthlibInjectorServersPage serversPage = null;
-    private static LeftPaneController leftPaneController;
-    private static Decorator decorator;
+    private static Lazy<RootPage> rootPage = new Lazy<>(RootPage::new);
+    private static DecoratorController decorator;
+    private static Lazy<ModDownloadListPage> modDownloadListPage = new Lazy<>(() -> {
+        return new ModDownloadListPage(CurseModManager.SECTION_MODPACK, Versions::downloadModpackImpl) {
+            {
+                state.set(State.fromTitle(i18n("modpack.download")));
+            }
+        };
+    });
+
+    private Controllers() {
+    }

    public static Scene getScene() {
        return scene;
@@ -58,17 +103,18 @@ public final class Controllers {
    }

    // FXThread
-    public static SettingsPage getSettingsPage() {
-        if (settingsPage == null)
-            settingsPage = new SettingsPage();
-        return settingsPage;
+    public static VersionPage getVersionPage() {
+        return versionPage.get();
    }

    // FXThread
-    public static VersionPage getVersionPage() {
-        if (versionPage == null)
-            versionPage = new VersionPage();
-        return versionPage;
+    public static GameListPage getGameListPage() {
+        return gameListPage.get();
+    }
+
+    // FXThread
+    public static RootPage getRootPage() {
+        return rootPage.get();
    }

    // FXThread
@@ -79,43 +125,55 @@ public final class Controllers {
    }

    // FXThread
-    public static Decorator getDecorator() {
+    public static ModDownloadListPage getModpackDownloadListPage() {
+        return modDownloadListPage.get();
+    }
+
+    // FXThread
+    public static DecoratorController getDecorator() {
        return decorator;
    }

-    public static MainPage getMainPage() {
-        if (mainPage == null)
-            mainPage = new MainPage();
-        return mainPage;
-    }
-
-    public static LeftPaneController getLeftPaneController() {
-        return leftPaneController;
+    public static void onApplicationStop() {
+        config().setHeight(stageHeight.get());
+        config().setWidth(stageWidth.get());
    }

    public static void initialize(Stage stage) {
+        Logging.LOG.info("Start initializing application");
+
        Controllers.stage = stage;
+        MicrosoftAccountLoginStage.INSTANCE.initOwner(stage);
+
+        stage.setHeight(config().getHeight());
+        stageHeight.bind(stage.heightProperty());
+        stage.setWidth(config().getWidth());
+        stageWidth.bind(stage.widthProperty());

        stage.setOnCloseRequest(e -> Launcher.stopApplication());

-        decorator = new Decorator(stage, getMainPage(), Metadata.TITLE, false, true);
-        decorator.showPage(null);
-        leftPaneController = new LeftPaneController(decorator.getLeftPane());
+        decorator = new DecoratorController(stage, getRootPage());

-        Settings.instance().onProfileLoading();
-        Task.of(JavaVersion::initialize).start();
+        if (config().getCommonDirType() == EnumCommonDirectory.CUSTOM &&
+                !FileUtils.canCreateDirectory(config().getCommonDirectory())) {
+            config().setCommonDirType(EnumCommonDirectory.DEFAULT);
+            dialog(i18n("launcher.cache_directory.invalid"));
+        }

-        decorator.setCustomMaximize(false);
+        Task.runAsync(JavaVersion::initialize).thenRunAsync(JavaRepository::initialize).start();

-        scene = new Scene(decorator, 804, 521);
+        scene = new Scene(decorator.getDecorator());
+        scene.setFill(Color.TRANSPARENT);
+        stage.setMinHeight(482 + 32);
+        stage.setMinWidth(802 + 32);
+        decorator.getDecorator().prefWidthProperty().bind(scene.widthProperty());
+        decorator.getDecorator().prefHeightProperty().bind(scene.heightProperty());
        scene.getStylesheets().setAll(config().getTheme().getStylesheets());
-        stage.setMinWidth(804);
-        stage.setMaxWidth(804);
-        stage.setMinHeight(521);
-        stage.setMaxHeight(521);

-        stage.getIcons().add(new Image("/assets/img/icon.png"));
+        stage.getIcons().add(newImage("/assets/img/icon.png"));
        stage.setTitle(Metadata.TITLE);
+        stage.initStyle(StageStyle.TRANSPARENT);
+        stage.setScene(scene);
    }

    public static void dialog(Region content) {
@@ -128,45 +186,55 @@ public final class Controllers {
    }

    public static void dialog(String text, String title) {
-        dialog(text, title, MessageBox.INFORMATION_MESSAGE);
+        dialog(text, title, MessageType.INFORMATION);
    }

-    public static void dialog(String text, String title, int type) {
+    public static void dialog(String text, String title, MessageType type) {
        dialog(text, title, type, null);
    }

-    public static void dialog(String text, String title, int type, Runnable onAccept) {
+    public static void dialog(String text, String title, MessageType type, Runnable onAccept) {
        dialog(new MessageDialogPane(text, title, type, onAccept));
    }

-    public static void confirmDialog(String text, String title, Runnable onAccept, Runnable onCancel) {
-        dialog(new MessageDialogPane(text, title, onAccept, onCancel));
+    public static void confirm(String text, String title, Runnable onAccept, Runnable onCancel) {
+        confirm(text, title, MessageType.QUESTION, onAccept, onCancel);
    }

-    public static InputDialogPane inputDialog(String text, FutureCallback<String> onResult) {
-        InputDialogPane pane = new InputDialogPane(text, onResult);
+    public static void confirm(String text, String title, MessageType type, Runnable onAccept, Runnable onCancel) {
+        dialog(new MessageDialogPane(text, title, type, onAccept, onCancel));
+    }
+
+    public static CompletableFuture<String> prompt(String title, FutureCallback<String> onResult) {
+        return prompt(title, onResult, "");
+    }
+
+    public static CompletableFuture<String> prompt(String title, FutureCallback<String> onResult, String initialValue) {
+        InputDialogPane pane = new InputDialogPane(title, initialValue, onResult);
        dialog(pane);
-        return pane;
+        return pane.getCompletableFuture();
    }

-    public static Region taskDialog(TaskExecutor executor, String title, String subtitle) {
-        return taskDialog(executor, title, subtitle, null);
+    public static CompletableFuture<List<PromptDialogPane.Builder.Question<?>>> prompt(PromptDialogPane.Builder builder) {
+        PromptDialogPane pane = new PromptDialogPane(builder);
+        dialog(pane);
+        return pane.getCompletableFuture();
    }

-    public static Region taskDialog(TaskExecutor executor, String title, String subtitle, Consumer<Region> onCancel) {
+    public static TaskExecutorDialogPane taskDialog(TaskExecutor executor, String title) {
+        return taskDialog(executor, title, null);
+    }
+
+    public static TaskExecutorDialogPane taskDialog(TaskExecutor executor, String title, Consumer<Region> onCancel) {
        TaskExecutorDialogPane pane = new TaskExecutorDialogPane(onCancel);
        pane.setTitle(title);
-        pane.setSubtitle(subtitle);
        pane.setExecutor(executor);
        dialog(pane);
        return pane;
    }

    public static void navigate(Node node) {
-        if (decorator.getNowPage() == node)
-            decorator.showPage(null);
-        else
-            decorator.showPage(node);
+        decorator.getNavigator().navigate(node, ContainerAnimations.FADE.getAnimationProducer());
    }

    public static boolean isStopped() {
@@ -174,10 +242,11 @@ public final class Controllers {
    }

    public static void shutdown() {
-        mainPage = null;
-        settingsPage = null;
+        rootPage = null;
        versionPage = null;
        serversPage = null;
+        gameListPage = null;
+        modDownloadListPage = null;
        decorator = null;
        stage = null;
        scene = null;
@@ -1,6 +1,6 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
@@ -13,7 +13,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl.ui;

@@ -22,17 +22,16 @@ import javafx.scene.Scene;
 import javafx.scene.control.Button;
 import javafx.scene.control.Label;
 import javafx.scene.control.TextArea;
-import javafx.scene.image.Image;
 import javafx.scene.layout.BorderPane;
 import javafx.scene.layout.HBox;
 import javafx.scene.layout.StackPane;
 import javafx.stage.Stage;
-
-import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
-
 import org.jackhuang.hmcl.Metadata;
 import org.jackhuang.hmcl.upgrade.UpdateChecker;

+import static org.jackhuang.hmcl.ui.FXUtils.newImage;
+import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
+
 /**
 * @author huangyuhui
 */
@@ -68,7 +67,7 @@ public class CrashWindow extends Stage {

        Scene scene = new Scene(pane, 800, 480);
        setScene(scene);
-        getIcons().add(new Image("/assets/img/icon.png"));
+        getIcons().add(newImage("/assets/img/icon.png"));
        setTitle(i18n("message.error"));

        setOnCloseRequest(e -> System.exit(1));
@@ -1,732 +0,0 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
- */
-package org.jackhuang.hmcl.ui;
-
-import com.jfoenix.controls.JFXButton;
-import com.jfoenix.controls.JFXDialog;
-import com.jfoenix.controls.JFXDrawer;
-import com.jfoenix.controls.JFXHamburger;
-import com.jfoenix.svg.SVGGlyph;
-import javafx.animation.Interpolator;
-import javafx.animation.KeyFrame;
-import javafx.animation.KeyValue;
-import javafx.animation.Timeline;
-import javafx.application.Platform;
-import javafx.beans.binding.Bindings;
-import javafx.beans.property.BooleanProperty;
-import javafx.beans.property.ObjectProperty;
-import javafx.beans.property.SimpleBooleanProperty;
-import javafx.beans.property.SimpleObjectProperty;
-import javafx.event.EventHandler;
-import javafx.fxml.FXML;
-import javafx.geometry.BoundingBox;
-import javafx.geometry.Bounds;
-import javafx.geometry.Insets;
-import javafx.geometry.Rectangle2D;
-import javafx.scene.Cursor;
-import javafx.scene.Node;
-import javafx.scene.control.Label;
-import javafx.scene.control.Tooltip;
-import javafx.scene.image.Image;
-import javafx.scene.image.ImageView;
-import javafx.scene.input.DragEvent;
-import javafx.scene.input.MouseEvent;
-import javafx.scene.layout.*;
-import javafx.scene.paint.Color;
-import javafx.scene.shape.Rectangle;
-import javafx.stage.Screen;
-import javafx.stage.Stage;
-import javafx.stage.StageStyle;
-import javafx.util.Duration;
-import org.jackhuang.hmcl.Launcher;
-import org.jackhuang.hmcl.auth.authlibinjector.AuthlibInjectorDnD;
-import org.jackhuang.hmcl.setting.ConfigHolder;
-import org.jackhuang.hmcl.setting.EnumBackgroundImage;
-import org.jackhuang.hmcl.setting.Theme;
-import org.jackhuang.hmcl.ui.animation.AnimationProducer;
-import org.jackhuang.hmcl.ui.animation.ContainerAnimations;
-import org.jackhuang.hmcl.ui.animation.TransitionHandler;
-import org.jackhuang.hmcl.ui.construct.AdvancedListBox;
-import org.jackhuang.hmcl.ui.construct.DialogCloseEvent;
-import org.jackhuang.hmcl.ui.construct.StackContainerPane;
-import org.jackhuang.hmcl.ui.construct.TaskExecutorDialogWizardDisplayer;
-import org.jackhuang.hmcl.ui.wizard.*;
-import org.jackhuang.hmcl.util.Lang;
-import org.jackhuang.hmcl.util.OperatingSystem;
-
-import java.io.IOException;
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.nio.file.Paths;
-import java.util.List;
-import java.util.Locale;
-import java.util.Optional;
-import java.util.Queue;
-import java.util.Random;
-import java.util.concurrent.ConcurrentLinkedQueue;
-import java.util.logging.Level;
-
-import static java.util.stream.Collectors.toList;
-import static org.jackhuang.hmcl.setting.ConfigHolder.config;
-import static org.jackhuang.hmcl.util.Logging.LOG;
-
-public final class Decorator extends StackPane implements TaskExecutorDialogWizardDisplayer {
-    private static final SVGGlyph minus = Lang.apply(new SVGGlyph(0, "MINUS", "M804.571 420.571v109.714q0 22.857-16 38.857t-38.857 16h-694.857q-22.857 0-38.857-16t-16-38.857v-109.714q0-22.857 16-38.857t38.857-16h694.857q22.857 0 38.857 16t16 38.857z", Color.WHITE),
-            glyph -> { glyph.setSize(12, 2); glyph.setTranslateY(4); });
-    private static final SVGGlyph resizeMax = Lang.apply(new SVGGlyph(0, "RESIZE_MAX", "M726 810v-596h-428v596h428zM726 44q34 0 59 25t25 59v768q0 34-25 60t-59 26h-428q-34 0-59-26t-25-60v-768q0-34 25-60t59-26z", Color.WHITE),
-            glyph -> { glyph.setPrefSize(12, 12); glyph.setSize(12, 12); });
-    private static final SVGGlyph resizeMin = Lang.apply(new SVGGlyph(0, "RESIZE_MIN", "M80.842 943.158v-377.264h565.894v377.264h-565.894zM0 404.21v619.79h727.578v-619.79h-727.578zM377.264 161.684h565.894v377.264h-134.736v80.842h215.578v-619.79h-727.578v323.37h80.842v-161.686z", Color.WHITE),
-            glyph -> { glyph.setPrefSize(12, 12); glyph.setSize(12, 12); });
-    private static final SVGGlyph close = Lang.apply(new SVGGlyph(0, "CLOSE", "M810 274l-238 238 238 238-60 60-238-238-238 238-60-60 238-238-238-238 60-60 238 238 238-238z", Color.WHITE),
-            glyph -> { glyph.setPrefSize(12, 12); glyph.setSize(12, 12); });
-
-    private static final String PROPERTY_DIALOG_CLOSE_HANDLER = Decorator.class.getName() + ".dialog.closeListener";
-
-    private final ObjectProperty<Runnable> onCloseButtonAction;
-    private final BooleanProperty customMaximize = new SimpleBooleanProperty(false);
-
-    private final Stage primaryStage;
-    private final Node mainPage;
-    private final boolean max, min;
-    private final WizardController wizardController = new WizardController(this);
-    private final Queue<Object> cancelQueue = new ConcurrentLinkedQueue<>();
-
-    private double xOffset, yOffset, newX, newY, initX, initY;
-    private boolean allowMove, isDragging, maximized;
-    private BoundingBox originalBox, maximizedBox;
-    private final TransitionHandler animationHandler;
-
-    private JFXDialog dialog;
-    private StackContainerPane dialogPane;
-
-    @FXML
-    private StackPane contentPlaceHolder;
-    @FXML
-    private StackPane drawerWrapper;
-    @FXML
-    private BorderPane titleContainer;
-    @FXML
-    private BorderPane leftRootPane;
-    @FXML
-    private HBox buttonsContainer;
-    @FXML
-    private JFXButton backNavButton;
-    @FXML
-    private JFXButton refreshNavButton;
-    @FXML
-    private JFXButton closeNavButton;
-    @FXML
-    private JFXButton refreshMenuButton;
-    @FXML
-    private Label titleLabel;
-    @FXML
-    private Label lblTitle;
-    @FXML
-    private AdvancedListBox leftPane;
-    @FXML
-    private JFXDrawer drawer;
-    @FXML
-    private StackPane titleBurgerContainer;
-    @FXML
-    private JFXHamburger titleBurger;
-    @FXML
-    private JFXButton btnMin;
-    @FXML
-    private JFXButton btnMax;
-    @FXML
-    private JFXButton btnClose;
-    @FXML
-    private HBox navLeft;
-    @FXML
-    private ImageView welcomeView;
-    @FXML
-    private Rectangle separator;
-
-    public Decorator(Stage primaryStage, Node mainPage, String title) {
-        this(primaryStage, mainPage, title, true, true);
-    }
-
-    public Decorator(Stage primaryStage, Node mainPage, String title, boolean max, boolean min) {
-        this.primaryStage = primaryStage;
-        this.mainPage = mainPage;
-        this.max = max;
-        this.min = min;
-
-        FXUtils.loadFXML(this, "/assets/fxml/decorator.fxml");
-
-        onCloseButtonAction = new SimpleObjectProperty<>(this, "onCloseButtonAction", Launcher::stopApplication);
-
-        primaryStage.initStyle(StageStyle.UNDECORATED);
-        btnClose.setGraphic(close);
-        btnMin.setGraphic(minus);
-        btnMax.setGraphic(resizeMax);
-
-        close.fillProperty().bind(Theme.foregroundFillBinding());
-        minus.fillProperty().bind(Theme.foregroundFillBinding());
-        resizeMax.fillProperty().bind(Theme.foregroundFillBinding());
-        resizeMin.fillProperty().bind(Theme.foregroundFillBinding());
-
-        refreshNavButton.setGraphic(SVG.refresh(Theme.foregroundFillBinding(), 15, 15));
-        closeNavButton.setGraphic(SVG.close(Theme.foregroundFillBinding(), 15, 15));
-        backNavButton.setGraphic(SVG.back(Theme.foregroundFillBinding(), 15, 15));
-
-        separator.visibleProperty().bind(refreshNavButton.visibleProperty());
-
-        lblTitle.setText(title);
-
-        buttonsContainer.setBackground(new Background(new BackgroundFill(Color.BLACK, CornerRadii.EMPTY, Insets.EMPTY)));
-        titleContainer.addEventHandler(MouseEvent.MOUSE_CLICKED, event -> {
-            if (event.getClickCount() == 2)
-                btnMax.fire();
-        });
-
-        welcomeView.setCursor(Cursor.HAND);
-        welcomeView.setOnMouseClicked(e -> {
-            Timeline nowAnimation = new Timeline();
-            nowAnimation.getKeyFrames().addAll(
-                    new KeyFrame(Duration.ZERO, new KeyValue(welcomeView.opacityProperty(), 1.0D, Interpolator.EASE_BOTH)),
-                    new KeyFrame(new Duration(300), new KeyValue(welcomeView.opacityProperty(), 0.0D, Interpolator.EASE_BOTH)),
-                    new KeyFrame(new Duration(300), e2 -> drawerWrapper.getChildren().remove(welcomeView))
-            );
-            nowAnimation.play();
-        });
-        if (!ConfigHolder.isNewlyCreated() || config().getLocalization().getLocale() != Locale.CHINA)
-            drawerWrapper.getChildren().remove(welcomeView);
-
-        if (!min) buttonsContainer.getChildren().remove(btnMin);
-        if (!max) buttonsContainer.getChildren().remove(btnMax);
-
-        //JFXDepthManager.setDepth(titleContainer, 1);
-        titleContainer.addEventHandler(MouseEvent.MOUSE_ENTERED, e -> allowMove = true);
-        titleContainer.addEventHandler(MouseEvent.MOUSE_EXITED, e -> {
-            if (!isDragging) allowMove = false;
-        });
-        Rectangle rectangle = new Rectangle(0, 0, 0, 0);
-        rectangle.widthProperty().bind(titleContainer.widthProperty());
-        rectangle.heightProperty().bind(Bindings.createDoubleBinding(() -> titleContainer.getHeight() + 100, titleContainer.heightProperty()));
-        titleContainer.setClip(rectangle);
-
-        animationHandler = new TransitionHandler(contentPlaceHolder);
-
-        setupBackground();
-        setupAuthlibInjectorDnD();
-    }
-
-    // ==== Background ====
-    private void setupBackground() {
-        drawerWrapper.backgroundProperty().bind(
-                Bindings.createObjectBinding(
-                        () -> {
-                            Image image = null;
-                            if (config().getBackgroundImageType() == EnumBackgroundImage.CUSTOM && config().getBackgroundImage() != null) {
-                                image = tryLoadImage(Paths.get(config().getBackgroundImage()))
-                                        .orElse(null);
-                            }
-                            if (image == null) {
-                                image = loadDefaultBackgroundImage();
-                            }
-                            return new Background(new BackgroundImage(image, BackgroundRepeat.NO_REPEAT, BackgroundRepeat.NO_REPEAT, BackgroundPosition.DEFAULT, new BackgroundSize(800, 480, false, false, true, true)));
-                        },
-                        config().backgroundImageTypeProperty(),
-                        config().backgroundImageProperty()));
-    }
-
-    private Image defaultBackground = new Image("/assets/img/background.jpg");
-
-    /**
-     * Load background image from bg/, background.png, background.jpg
-     */
-    private Image loadDefaultBackgroundImage() {
-        Optional<Image> image = randomImageIn(Paths.get("bg"));
-        if (!image.isPresent()) {
-            image = tryLoadImage(Paths.get("background.png"));
-        }
-        if (!image.isPresent()) {
-            image = tryLoadImage(Paths.get("background.jpg"));
-        }
-        return image.orElse(defaultBackground);
-    }
-
-    private Optional<Image> randomImageIn(Path imageDir) {
-        if (!Files.isDirectory(imageDir)) {
-            return Optional.empty();
-        }
-
-        List<Path> candidates;
-        try {
-            candidates = Files.list(imageDir)
-                    .filter(Files::isRegularFile)
-                    .filter(it -> {
-                        String filename = it.getFileName().toString();
-                        return filename.endsWith(".png") || filename.endsWith(".jpg");
-                    })
-                    .collect(toList());
-        } catch (IOException e) {
-            LOG.log(Level.WARNING, "Failed to list files in ./bg", e);
-            return Optional.empty();
-        }
-
-        Random rnd = new Random();
-        while (candidates.size() > 0) {
-            int selected = rnd.nextInt(candidates.size());
-            Optional<Image> loaded = tryLoadImage(candidates.get(selected));
-            if (loaded.isPresent()) {
-                return Optional.of(loaded.get());
-            } else {
-                candidates.remove(selected);
-            }
-        }
-        return Optional.empty();
-    }
-
-    private Optional<Image> tryLoadImage(Path path) {
-        if (Files.isRegularFile(path)) {
-            try {
-                return Optional.of(new Image(path.toAbsolutePath().toUri().toString()));
-            } catch (IllegalArgumentException ignored) {
-            }
-        }
-        return Optional.empty();
-    }
-
-    private boolean isMaximized() {
-        switch (OperatingSystem.CURRENT_OS) {
-            case OSX:
-                Rectangle2D bounds = Screen.getPrimary().getVisualBounds();
-                return primaryStage.getWidth() >= bounds.getWidth() && primaryStage.getHeight() >= bounds.getHeight();
-            default:
-                return primaryStage.isMaximized();
-        }
-    }
-
-    // ====
-
-    @FXML
-    private void onMouseMoved(MouseEvent mouseEvent) {
-        if (!isMaximized() && !primaryStage.isFullScreen() && !maximized) {
-            if (!primaryStage.isResizable())
-                updateInitMouseValues(mouseEvent);
-            else {
-                double x = mouseEvent.getX(), y = mouseEvent.getY();
-                Bounds boundsInParent = getBoundsInParent();
-                if (getBorder() != null && getBorder().getStrokes().size() > 0) {
-                    double borderWidth = this.contentPlaceHolder.snappedLeftInset();
-                    if (this.isRightEdge(x, y, boundsInParent)) {
-                        if (y < borderWidth) {
-                            setCursor(Cursor.NE_RESIZE);
-                        } else if (y > this.getHeight() - borderWidth) {
-                            setCursor(Cursor.SE_RESIZE);
-                        } else {
-                            setCursor(Cursor.E_RESIZE);
-                        }
-                    } else if (this.isLeftEdge(x, y, boundsInParent)) {
-                        if (y < borderWidth) {
-                            setCursor(Cursor.NW_RESIZE);
-                        } else if (y > this.getHeight() - borderWidth) {
-                            setCursor(Cursor.SW_RESIZE);
-                        } else {
-                            setCursor(Cursor.W_RESIZE);
-                        }
-                    } else if (this.isTopEdge(x, y, boundsInParent)) {
-                        setCursor(Cursor.N_RESIZE);
-                    } else if (this.isBottomEdge(x, y, boundsInParent)) {
-                        setCursor(Cursor.S_RESIZE);
-                    } else {
-                        setCursor(Cursor.DEFAULT);
-                    }
-
-                    this.updateInitMouseValues(mouseEvent);
-                }
-            }
-        } else {
-            setCursor(Cursor.DEFAULT);
-        }
-    }
-
-    @FXML
-    private void onMouseReleased() {
-        isDragging = false;
-    }
-
-    @FXML
-    private void onMouseDragged(MouseEvent mouseEvent) {
-        this.isDragging = true;
-        if (mouseEvent.isPrimaryButtonDown() && (this.xOffset != -1.0 || this.yOffset != -1.0)) {
-            if (!this.primaryStage.isFullScreen() && !mouseEvent.isStillSincePress() && !isMaximized() && !this.maximized) {
-                this.newX = mouseEvent.getScreenX();
-                this.newY = mouseEvent.getScreenY();
-                double deltaX = this.newX - this.initX;
-                double deltaY = this.newY - this.initY;
-                Cursor cursor = this.getCursor();
-                if (Cursor.E_RESIZE == cursor) {
-                    this.setStageWidth(this.primaryStage.getWidth() + deltaX);
-                    mouseEvent.consume();
-                } else if (Cursor.NE_RESIZE == cursor) {
-                    if (this.setStageHeight(this.primaryStage.getHeight() - deltaY)) {
-                        this.primaryStage.setY(this.primaryStage.getY() + deltaY);
-                    }
-
-                    this.setStageWidth(this.primaryStage.getWidth() + deltaX);
-                    mouseEvent.consume();
-                } else if (Cursor.SE_RESIZE == cursor) {
-                    this.setStageWidth(this.primaryStage.getWidth() + deltaX);
-                    this.setStageHeight(this.primaryStage.getHeight() + deltaY);
-                    mouseEvent.consume();
-                } else if (Cursor.S_RESIZE == cursor) {
-                    this.setStageHeight(this.primaryStage.getHeight() + deltaY);
-                    mouseEvent.consume();
-                } else if (Cursor.W_RESIZE == cursor) {
-                    if (this.setStageWidth(this.primaryStage.getWidth() - deltaX)) {
-                        this.primaryStage.setX(this.primaryStage.getX() + deltaX);
-                    }
-
-                    mouseEvent.consume();
-                } else if (Cursor.SW_RESIZE == cursor) {
-                    if (this.setStageWidth(this.primaryStage.getWidth() - deltaX)) {
-                        this.primaryStage.setX(this.primaryStage.getX() + deltaX);
-                    }
-
-                    this.setStageHeight(this.primaryStage.getHeight() + deltaY);
-                    mouseEvent.consume();
-                } else if (Cursor.NW_RESIZE == cursor) {
-                    if (this.setStageWidth(this.primaryStage.getWidth() - deltaX)) {
-                        this.primaryStage.setX(this.primaryStage.getX() + deltaX);
-                    }
-
-                    if (this.setStageHeight(this.primaryStage.getHeight() - deltaY)) {
-                        this.primaryStage.setY(this.primaryStage.getY() + deltaY);
-                    }
-
-                    mouseEvent.consume();
-                } else if (Cursor.N_RESIZE == cursor) {
-                    if (this.setStageHeight(this.primaryStage.getHeight() - deltaY)) {
-                        this.primaryStage.setY(this.primaryStage.getY() + deltaY);
-                    }
-
-                    mouseEvent.consume();
-                } else if (this.allowMove) {
-                    this.primaryStage.setX(mouseEvent.getScreenX() - this.xOffset);
-                    this.primaryStage.setY(mouseEvent.getScreenY() - this.yOffset);
-                    mouseEvent.consume();
-                }
-            }
-        }
-    }
-
-    @FXML
-    private void onMin() {
-        primaryStage.setIconified(true);
-    }
-
-    @FXML
-    private void onMax() {
-        if (!max) return;
-        if (!this.isCustomMaximize()) {
-            this.primaryStage.setMaximized(!this.primaryStage.isMaximized());
-            this.maximized = this.primaryStage.isMaximized();
-            if (this.primaryStage.isMaximized()) {
-                this.btnMax.setGraphic(resizeMin);
-                this.btnMax.setTooltip(new Tooltip("Restore Down"));
-            } else {
-                this.btnMax.setGraphic(resizeMax);
-                this.btnMax.setTooltip(new Tooltip("Maximize"));
-            }
-        } else {
-            if (!this.maximized) {
-                this.originalBox = new BoundingBox(primaryStage.getX(), primaryStage.getY(), primaryStage.getWidth(), primaryStage.getHeight());
-                Screen screen = Screen.getScreensForRectangle(primaryStage.getX(), primaryStage.getY(), primaryStage.getWidth(), primaryStage.getHeight()).get(0);
-                Rectangle2D bounds = screen.getVisualBounds();
-                this.maximizedBox = new BoundingBox(bounds.getMinX(), bounds.getMinY(), bounds.getWidth(), bounds.getHeight());
-                primaryStage.setX(this.maximizedBox.getMinX());
-                primaryStage.setY(this.maximizedBox.getMinY());
-                primaryStage.setWidth(this.maximizedBox.getWidth());
-                primaryStage.setHeight(this.maximizedBox.getHeight());
-                this.btnMax.setGraphic(resizeMin);
-                this.btnMax.setTooltip(new Tooltip("Restore Down"));
-            } else {
-                primaryStage.setX(this.originalBox.getMinX());
-                primaryStage.setY(this.originalBox.getMinY());
-                primaryStage.setWidth(this.originalBox.getWidth());
-                primaryStage.setHeight(this.originalBox.getHeight());
-                this.originalBox = null;
-                this.btnMax.setGraphic(resizeMax);
-                this.btnMax.setTooltip(new Tooltip("Maximize"));
-            }
-
-            this.maximized = !this.maximized;
-        }
-    }
-
-    @FXML
-    private void onClose() {
-        onCloseButtonAction.get().run();
-    }
-
-    private void updateInitMouseValues(MouseEvent mouseEvent) {
-        initX = mouseEvent.getScreenX();
-        initY = mouseEvent.getScreenY();
-        xOffset = mouseEvent.getSceneX();
-        yOffset = mouseEvent.getSceneY();
-    }
-
-    private boolean isRightEdge(double x, double y, Bounds boundsInParent) {
-        return x < getWidth() && x > getWidth() - contentPlaceHolder.snappedLeftInset();
-    }
-
-    private boolean isTopEdge(double x, double y, Bounds boundsInParent) {
-        return y >= 0 && y < contentPlaceHolder.snappedLeftInset();
-    }
-
-    private boolean isBottomEdge(double x, double y, Bounds boundsInParent) {
-        return y < getHeight() && y > getHeight() - contentPlaceHolder.snappedLeftInset();
-    }
-
-    private boolean isLeftEdge(double x, double y, Bounds boundsInParent) {
-        return x >= 0 && x < contentPlaceHolder.snappedLeftInset();
-    }
-
-    private boolean setStageWidth(double width) {
-        if (width >= primaryStage.getMinWidth() && width >= titleContainer.getMinWidth()) {
-            primaryStage.setWidth(width);
-            initX = newX;
-            return true;
-        } else {
-            if (width >= primaryStage.getMinWidth() && width <= titleContainer.getMinWidth())
-                primaryStage.setWidth(titleContainer.getMinWidth());
-
-            return false;
-        }
-    }
-
-    private boolean setStageHeight(double height) {
-        if (height >= primaryStage.getMinHeight() && height >= titleContainer.getHeight()) {
-            primaryStage.setHeight(height);
-            initY = newY;
-            return true;
-        } else {
-            if (height >= primaryStage.getMinHeight() && height <= titleContainer.getHeight())
-                primaryStage.setHeight(titleContainer.getHeight());
-
-            return false;
-        }
-    }
-
-    public void setMaximized(boolean maximized) {
-        if (this.maximized != maximized) {
-            Platform.runLater(btnMax::fire);
-        }
-    }
-
-    private void showCloseNavButton() {
-        navLeft.getChildren().add(closeNavButton);
-    }
-
-    private void hideCloseNavButton() {
-        navLeft.getChildren().remove(closeNavButton);
-    }
-
-    private void setContent(Node content, AnimationProducer animation) {
-        isWizardPageNow = false;
-        animationHandler.setContent(content, animation);
-
-        if (content instanceof Region) {
-            ((Region) content).setMinSize(0, 0);
-            FXUtils.setOverflowHidden((Region) content, true);
-        }
-
-        refreshNavButton.setVisible(content instanceof Refreshable);
-        backNavButton.setVisible(content != mainPage);
-
-        String prefix = category == null ? "" : category + " - ";
-
-        titleLabel.textProperty().unbind();
-
-        if (content instanceof WizardPage)
-            titleLabel.setText(prefix + ((WizardPage) content).getTitle());
-
-        if (content instanceof DecoratorPage)
-            titleLabel.textProperty().bind(((DecoratorPage) content).titleProperty());
-    }
-
-    private String category;
-    private Node nowPage;
-    private boolean isWizardPageNow;
-
-    public Node getNowPage() {
-        return nowPage;
-    }
-
-    public void showPage(Node content) {
-        FXUtils.checkFxUserThread();
-
-        contentPlaceHolder.getStyleClass().removeAll("gray-background", "white-background");
-        if (content != null)
-            contentPlaceHolder.getStyleClass().add("gray-background");
-
-        Node c = content == null ? mainPage : content;
-        onEnd();
-        if (nowPage instanceof DecoratorPage)
-            ((DecoratorPage) nowPage).onClose();
-        nowPage = content;
-
-        setContent(c, ContainerAnimations.FADE.getAnimationProducer());
-
-        if (c instanceof Region) {
-            // Let root pane fix window size.
-            StackPane parent = (StackPane) c.getParent();
-            ((Region) c).prefWidthProperty().bind(parent.widthProperty());
-            ((Region) c).prefHeightProperty().bind(parent.heightProperty());
-        }
-    }
-
-    public void showDialog(Node node) {
-        FXUtils.checkFxUserThread();
-
-        if (dialog == null) {
-            dialog = new JFXDialog();
-            dialogPane = new StackContainerPane();
-
-            dialog.setContent(dialogPane);
-            dialog.setDialogContainer(drawerWrapper);
-            dialog.setOverlayClose(false);
-            dialog.show();
-        }
-
-        dialogPane.push(node);
-
-        EventHandler<DialogCloseEvent> handler = event -> closeDialog(node);
-        node.getProperties().put(PROPERTY_DIALOG_CLOSE_HANDLER, handler);
-        node.addEventHandler(DialogCloseEvent.CLOSE, handler);
-    }
-
-    @SuppressWarnings("unchecked")
-    private void closeDialog(Node node) {
-        FXUtils.checkFxUserThread();
-
-        Optional.ofNullable(node.getProperties().get(PROPERTY_DIALOG_CLOSE_HANDLER))
-                .ifPresent(handler -> node.removeEventHandler(DialogCloseEvent.CLOSE, (EventHandler<DialogCloseEvent>) handler));
-
-        if (dialog != null) {
-            dialogPane.pop(node);
-
-            if (dialogPane.getChildren().isEmpty()) {
-                dialog.close();
-                dialog = null;
-                dialogPane = null;
-            }
-        }
-    }
-
-    public void startWizard(WizardProvider wizardProvider) {
-        startWizard(wizardProvider, null);
-    }
-
-    public void startWizard(WizardProvider wizardProvider, String category) {
-        FXUtils.checkFxUserThread();
-
-        this.category = category;
-        wizardController.setProvider(wizardProvider);
-        wizardController.onStart();
-    }
-
-    @Override
-    public void onStart() {
-        backNavButton.setVisible(true);
-        backNavButton.setDisable(false);
-        showCloseNavButton();
-        refreshNavButton.setVisible(false);
-    }
-
-    @Override
-    public void onEnd() {
-        backNavButton.setVisible(false);
-        hideCloseNavButton();
-        refreshNavButton.setVisible(false);
-    }
-
-    @Override
-    public void navigateTo(Node page, Navigation.NavigationDirection nav) {
-        contentPlaceHolder.getStyleClass().removeAll("gray-background", "white-background");
-        contentPlaceHolder.getStyleClass().add("white-background");
-        setContent(page, nav.getAnimation().getAnimationProducer());
-        isWizardPageNow = true;
-    }
-
-    @FXML
-    private void onRefresh() {
-        ((Refreshable) contentPlaceHolder.getChildren().get(0)).refresh();
-    }
-
-    @FXML
-    private void onCloseNav() {
-        wizardController.onCancel();
-        showPage(null);
-    }
-
-    @FXML
-    private void onBack() {
-        if (isWizardPageNow && wizardController.canPrev())
-            wizardController.onPrev(true);
-        else
-            onCloseNav();
-    }
-
-    @Override
-    public Queue<Object> getCancelQueue() {
-        return cancelQueue;
-    }
-
-    public Runnable getOnCloseButtonAction() {
-        return onCloseButtonAction.get();
-    }
-
-    public ObjectProperty<Runnable> onCloseButtonActionProperty() {
-        return onCloseButtonAction;
-    }
-
-    public void setOnCloseButtonAction(Runnable onCloseButtonAction) {
-        this.onCloseButtonAction.set(onCloseButtonAction);
-    }
-
-    public boolean isCustomMaximize() {
-        return customMaximize.get();
-    }
-
-    public BooleanProperty customMaximizeProperty() {
-        return customMaximize;
-    }
-
-    public void setCustomMaximize(boolean customMaximize) {
-        this.customMaximize.set(customMaximize);
-    }
-
-    @Override
-    public WizardController getWizardController() {
-        return wizardController;
-    }
-
-    public AdvancedListBox getLeftPane() {
-        return leftPane;
-    }
-
-    private void setupAuthlibInjectorDnD() {
-        addEventFilter(DragEvent.DRAG_OVER, AuthlibInjectorDnD.dragOverHandler());
-        addEventFilter(DragEvent.DRAG_DROPPED, AuthlibInjectorDnD.dragDroppedHandler(
-                url -> Controllers.dialog(new AddAuthlibInjectorServerPane(url))));
-    }
-}
@@ -1,7 +1,7 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
@@ -13,35 +13,40 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl.ui;

-import com.jfoenix.concurrency.JFXUtilities;
 import org.jackhuang.hmcl.auth.Account;
 import org.jackhuang.hmcl.auth.AuthInfo;
+import org.jackhuang.hmcl.auth.AuthenticationException;
 import org.jackhuang.hmcl.auth.yggdrasil.YggdrasilAccount;
-import org.jackhuang.hmcl.task.SilentException;
+import org.jackhuang.hmcl.ui.account.AccountLoginPane;

 import java.util.Optional;
+import java.util.concurrent.CancellationException;
 import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.atomic.AtomicReference;

-public final class DialogController {
+import static org.jackhuang.hmcl.ui.FXUtils.runInFX;

-    public static AuthInfo logIn(Account account) throws Exception {
+public final class DialogController {
+    private DialogController() {
+    }
+
+    public static AuthInfo logIn(Account account) throws CancellationException, AuthenticationException, InterruptedException {
        if (account instanceof YggdrasilAccount) {
            CountDownLatch latch = new CountDownLatch(1);
            AtomicReference<AuthInfo> res = new AtomicReference<>(null);
-            JFXUtilities.runInFX(() -> {
+            runInFX(() -> {
                AccountLoginPane pane = new AccountLoginPane(account, it -> {
-                        res.set(it);
-                        latch.countDown();
+                    res.set(it);
+                    latch.countDown();
                }, latch::countDown);
                Controllers.dialog(pane);
            });
            latch.await();
-            return Optional.ofNullable(res.get()).orElseThrow(SilentException::new);
+            return Optional.ofNullable(res.get()).orElseThrow(CancellationException::new);
        }
        return account.logIn();
    }
@@ -1,6 +1,6 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
@@ -13,59 +13,76 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl.ui;

 import com.jfoenix.controls.*;
-import javafx.animation.Animation;
 import javafx.animation.Interpolator;
 import javafx.animation.KeyFrame;
+import javafx.animation.KeyValue;
 import javafx.animation.Timeline;
 import javafx.application.Platform;
 import javafx.beans.InvalidationListener;
+import javafx.beans.Observable;
+import javafx.beans.WeakInvalidationListener;
 import javafx.beans.property.Property;
 import javafx.beans.value.ChangeListener;
 import javafx.beans.value.ObservableValue;
 import javafx.beans.value.WeakChangeListener;
-import javafx.event.EventHandler;
+import javafx.beans.value.WritableValue;
 import javafx.fxml.FXMLLoader;
+import javafx.geometry.Insets;
+import javafx.geometry.Pos;
 import javafx.scene.Node;
-import javafx.scene.control.ListCell;
-import javafx.scene.control.ListView;
-import javafx.scene.control.ScrollBar;
-import javafx.scene.control.ScrollPane;
-import javafx.scene.control.Tooltip;
+import javafx.scene.control.*;
+import javafx.scene.image.Image;
 import javafx.scene.image.ImageView;
-import javafx.scene.input.MouseEvent;
-import javafx.scene.input.ScrollEvent;
+import javafx.scene.input.TransferMode;
 import javafx.scene.layout.Region;
+import javafx.scene.layout.StackPane;
 import javafx.scene.shape.Rectangle;
 import javafx.util.Callback;
 import javafx.util.Duration;
 import javafx.util.StringConverter;
-
-import org.jackhuang.hmcl.util.*;
+import org.jackhuang.hmcl.util.Logging;
+import org.jackhuang.hmcl.util.ResourceNotFoundError;
 import org.jackhuang.hmcl.util.i18n.I18n;
+import org.jackhuang.hmcl.util.io.FileUtils;
+import org.jackhuang.hmcl.util.javafx.ExtendedProperties;
+import org.jackhuang.hmcl.util.javafx.SafeStringConverter;
+import org.jackhuang.hmcl.util.platform.OperatingSystem;

 import java.io.File;
+import java.io.FileFilter;
 import java.io.IOException;
+import java.io.UncheckedIOException;
 import java.lang.reflect.Constructor;
 import java.lang.reflect.Method;
 import java.net.URI;
-import java.util.concurrent.CountDownLatch;
-import java.util.concurrent.atomic.AtomicReference;
+import java.util.List;
+import java.util.Objects;
+import java.util.function.BooleanSupplier;
 import java.util.function.Consumer;
 import java.util.function.Function;
-import java.util.function.Supplier;
 import java.util.logging.Level;
+import java.util.stream.Collectors;

+import static org.jackhuang.hmcl.util.Lang.thread;
 import static org.jackhuang.hmcl.util.Lang.tryCast;

 public final class FXUtils {
    private FXUtils() {
    }

+    public static void runInFX(Runnable runnable) {
+        if (Platform.isFxApplicationThread()) {
+            runnable.run();
+        } else {
+            Platform.runLater(runnable);
+        }
+    }
+
    public static void checkFxUserThread() {
        if (!Platform.isFxApplicationThread()) {
            throw new IllegalStateException("Not on FX application thread; currentThread = "
@@ -81,18 +98,34 @@ public final class FXUtils {
        value.addListener((a, b, c) -> consumer.accept(c));
    }

-    public static <T> void onWeakChange(ObservableValue<T> value, Consumer<T> consumer) {
-        value.addListener(new WeakChangeListener<>((a, b, c) -> consumer.accept(c)));
+    public static <T> WeakChangeListener<T> onWeakChange(ObservableValue<T> value, Consumer<T> consumer) {
+        WeakChangeListener<T> listener = new WeakChangeListener<>((a, b, c) -> consumer.accept(c));
+        value.addListener(listener);
+        return listener;
    }

    public static <T> void onChangeAndOperate(ObservableValue<T> value, Consumer<T> consumer) {
-        onChange(value, consumer);
        consumer.accept(value.getValue());
+        onChange(value, consumer);
    }

-    public static <T> void onWeakChangeAndOperate(ObservableValue<T> value, Consumer<T> consumer) {
-        onWeakChange(value, consumer);
+    public static <T> WeakChangeListener<T> onWeakChangeAndOperate(ObservableValue<T> value, Consumer<T> consumer) {
        consumer.accept(value.getValue());
+        return onWeakChange(value, consumer);
+    }
+
+    public static WeakInvalidationListener observeWeak(Runnable runnable, Observable... observables) {
+        WeakInvalidationListener listener = new WeakInvalidationListener(observable -> runnable.run());
+        for (Observable observable : observables) {
+            observable.addListener(listener);
+        }
+        runnable.run();
+        return listener;
+    }
+
+    public static void runLaterIf(BooleanSupplier condition, Runnable runnable) {
+        if (condition.getAsBoolean()) Platform.runLater(() -> runLaterIf(condition, runnable));
+        else runnable.run();
    }

    public static void limitSize(ImageView imageView, double maxWidth, double maxHeight) {
@@ -140,6 +173,20 @@ public final class FXUtils {
                });
    }

+    public static <K, T> void setupCellValueFactory(JFXTreeTableColumn<K, T> column, Function<K, ObservableValue<T>> mapper) {
+        column.setCellValueFactory(param -> {
+            if (column.validateValue(param))
+                return mapper.apply(param.getValue().getValue());
+            else
+                return column.getComputedValue(param);
+        });
+    }
+
+    public static Node wrapMargin(Node node, Insets insets) {
+        StackPane.setMargin(node, insets);
+        return new StackPane(node);
+    }
+
    public static void setValidateWhileTextChanged(Node field, boolean validate) {
        if (field instanceof JFXTextField) {
            if (validate) {
@@ -163,19 +210,19 @@ public final class FXUtils {
        return field.getProperties().containsKey("FXUtils.validation");
    }

-    public static void setOverflowHidden(Region region, boolean hidden) {
-        if (hidden) {
-            Rectangle rectangle = new Rectangle();
-            rectangle.widthProperty().bind(region.widthProperty());
-            rectangle.heightProperty().bind(region.heightProperty());
-            region.setClip(rectangle);
-        } else {
-            region.setClip(null);
-        }
+    public static Rectangle setOverflowHidden(Region region) {
+        Rectangle rectangle = new Rectangle();
+        rectangle.widthProperty().bind(region.widthProperty());
+        rectangle.heightProperty().bind(region.heightProperty());
+        region.setClip(rectangle);
+        return rectangle;
    }

-    public static boolean getOverflowHidden(Region region) {
-        return region.getClip() != null;
+    public static Rectangle setOverflowHidden(Region region, double arc) {
+        Rectangle rectangle = setOverflowHidden(region);
+        rectangle.setArcWidth(arc);
+        rectangle.setArcHeight(arc);
+        return rectangle;
    }

    public static void setLimitWidth(Region region, double width) {
@@ -198,6 +245,14 @@ public final class FXUtils {
        return region.getMaxHeight();
    }

+    public static Node limitingSize(Node node, double width, double height) {
+        StackPane pane = new StackPane(node);
+        pane.setAlignment(Pos.CENTER);
+        FXUtils.setLimitWidth(pane, width);
+        FXUtils.setLimitHeight(pane, height);
+        return pane;
+    }
+
    public static void smoothScrolling(ScrollPane scrollPane) {
        JFXScrollPane.smoothScrolling(scrollPane);
    }
@@ -206,34 +261,73 @@ public final class FXUtils {
        FXMLLoader loader = new FXMLLoader(node.getClass().getResource(absolutePath), I18n.getResourceBundle());
        loader.setRoot(node);
        loader.setController(node);
-        Lang.invoke((ExceptionalSupplier<Object, IOException>) loader::load);
+        try {
+            loader.load();
+        } catch (IOException e) {
+            throw new UncheckedIOException(e);
+        }
    }

-    public static void installTooltip(Node node, String tooltip) {
-        installTooltip(node, 0, 5000, 0, new Tooltip(tooltip));
+    public static void installFastTooltip(Node node, Tooltip tooltip) {
+        installTooltip(node, 50, 5000, 0, tooltip);
+    }
+
+    public static void installFastTooltip(Node node, String tooltip) {
+        installFastTooltip(node, new Tooltip(tooltip));
+    }
+
+    public static void installSlowTooltip(Node node, Tooltip tooltip) {
+        installTooltip(node, 500, 5000, 0, tooltip);
+    }
+
+    public static void installSlowTooltip(Node node, String tooltip) {
+        installSlowTooltip(node, new Tooltip(tooltip));
    }

    public static void installTooltip(Node node, double openDelay, double visibleDelay, double closeDelay, Tooltip tooltip) {
-        try {
-            // Java 8
-            Class<?> behaviorClass = Class.forName("javafx.scene.control.Tooltip$TooltipBehavior");
-            Constructor<?> behaviorConstructor = behaviorClass.getDeclaredConstructor(Duration.class, Duration.class, Duration.class, boolean.class);
-            behaviorConstructor.setAccessible(true);
-            Object behavior = behaviorConstructor.newInstance(new Duration(openDelay), new Duration(visibleDelay), new Duration(closeDelay), false);
-            Method installMethod = behaviorClass.getDeclaredMethod("install", Node.class, Tooltip.class);
-            installMethod.setAccessible(true);
-            installMethod.invoke(behavior, node, tooltip);
-        } catch (ReflectiveOperationException e) {
+        runInFX(() -> {
            try {
-                // Java 9
-                Tooltip.class.getMethod("setShowDelay", Duration.class).invoke(tooltip, new Duration(openDelay));
-                Tooltip.class.getMethod("setShowDuration", Duration.class).invoke(tooltip, new Duration(visibleDelay));
-                Tooltip.class.getMethod("setHideDelay", Duration.class).invoke(tooltip, new Duration(closeDelay));
-            } catch (ReflectiveOperationException e2) {
-                e.addSuppressed(e2);
-                Logging.LOG.log(Level.SEVERE, "Cannot install tooltip", e);
+                // Java 8
+                Class<?> behaviorClass = Class.forName("javafx.scene.control.Tooltip$TooltipBehavior");
+                Constructor<?> behaviorConstructor = behaviorClass.getDeclaredConstructor(Duration.class, Duration.class, Duration.class, boolean.class);
+                behaviorConstructor.setAccessible(true);
+                Object behavior = behaviorConstructor.newInstance(new Duration(openDelay), new Duration(visibleDelay), new Duration(closeDelay), false);
+                Method installMethod = behaviorClass.getDeclaredMethod("install", Node.class, Tooltip.class);
+                installMethod.setAccessible(true);
+                installMethod.invoke(behavior, node, tooltip);
+            } catch (ReflectiveOperationException e) {
+                try {
+                    // Java 9
+                    Tooltip.class.getMethod("setShowDelay", Duration.class).invoke(tooltip, new Duration(openDelay));
+                    Tooltip.class.getMethod("setShowDuration", Duration.class).invoke(tooltip, new Duration(visibleDelay));
+                    Tooltip.class.getMethod("setHideDelay", Duration.class).invoke(tooltip, new Duration(closeDelay));
+                } catch (ReflectiveOperationException e2) {
+                    e.addSuppressed(e2);
+                    Logging.LOG.log(Level.SEVERE, "Cannot install tooltip", e);
+                }
+                Tooltip.install(node, tooltip);
            }
-            Tooltip.install(node, tooltip);
+        });
+    }
+
+    public static void playAnimation(Node node, String animationKey, Timeline timeline) {
+        animationKey = "FXUTILS.ANIMATION." + animationKey;
+        Object oldTimeline = node.getProperties().get(animationKey);
+        if (oldTimeline instanceof Timeline) ((Timeline) oldTimeline).stop();
+        if (timeline != null) timeline.play();
+        node.getProperties().put(animationKey, timeline);
+    }
+
+    public static <T> void playAnimation(Node node, String animationKey, Duration duration, WritableValue<T> property, T from, T to, Interpolator interpolator) {
+        if (from == null) from = property.getValue();
+        if (duration == null || Objects.equals(duration, Duration.ZERO) || Objects.equals(from, to)) {
+            playAnimation(node, animationKey, null);
+            property.setValue(to);
+        } else {
+            playAnimation(node, animationKey, new Timeline(
+                    new KeyFrame(Duration.ZERO, new KeyValue(property, from, interpolator)),
+                    new KeyFrame(duration, new KeyValue(property, to, interpolator))
+            ));
        }
    }

@@ -254,11 +348,15 @@ public final class FXUtils {
                }
                break;
            default:
-                try {
-                    java.awt.Desktop.getDesktop().open(file);
-                } catch (Throwable e) {
-                    Logging.LOG.log(Level.SEVERE, "Unable to open " + path + " by java.awt.Desktop.getDesktop()::open", e);
-                }
+                thread(() -> {
+                    if (java.awt.Desktop.isDesktopSupported()) {
+                        try {
+                            java.awt.Desktop.getDesktop().open(file);
+                        } catch (Throwable e) {
+                            Logging.LOG.log(Level.SEVERE, "Unable to open " + path + " by java.awt.Desktop.getDesktop()::open", e);
+                        }
+                    }
+                });
        }
    }

@@ -270,21 +368,25 @@ public final class FXUtils {
    public static void openLink(String link) {
        if (link == null)
            return;
-        try {
-            java.awt.Desktop.getDesktop().browse(new URI(link));
-        } catch (Throwable e) {
-            if (OperatingSystem.CURRENT_OS == OperatingSystem.OSX)
+        thread(() -> {
+            if (java.awt.Desktop.isDesktopSupported()) {
                try {
-                    Runtime.getRuntime().exec(new String[] { "/usr/bin/open", link });
-                } catch (IOException ex) {
-                    Logging.LOG.log(Level.WARNING, "Unable to open link: " + link, ex);
+                    java.awt.Desktop.getDesktop().browse(new URI(link));
+                } catch (Throwable e) {
+                    if (OperatingSystem.CURRENT_OS == OperatingSystem.OSX)
+                        try {
+                            Runtime.getRuntime().exec(new String[]{"/usr/bin/open", link});
+                        } catch (IOException ex) {
+                            Logging.LOG.log(Level.WARNING, "Unable to open link: " + link, ex);
+                        }
+                    Logging.LOG.log(Level.WARNING, "Failed to open link: " + link, e);
                }
-            Logging.LOG.log(Level.WARNING, "Failed to open link: " + link, e);
-        }
+            }
+        });
    }

    public static void bindInt(JFXTextField textField, Property<Number> property) {
-        textField.textProperty().bindBidirectional(property, SafeIntStringConverter.INSTANCE);
+        textField.textProperty().bindBidirectional(property, SafeStringConverter.fromInteger());
    }

    public static void unbindInt(JFXTextField textField, Property<Number> property) {
@@ -321,9 +423,11 @@ public final class FXUtils {
     * @param comboBox the combo box being bound with {@code property}.
     * @param property the property being bound with {@code combo box}.
     * @see #unbindEnum(JFXComboBox)
+     * @deprecated Use {@link ExtendedProperties#selectedItemPropertyFor(ComboBox)}
     */
    @SuppressWarnings("unchecked")
-    public static void bindEnum(JFXComboBox<?> comboBox, Property<? extends Enum> property) {
+    @Deprecated
+    public static void bindEnum(JFXComboBox<?> comboBox, Property<? extends Enum<?>> property) {
        unbindEnum(comboBox);
        ChangeListener<Number> listener = (a, b, newValue) ->
                ((Property) property).setValue(property.getValue().getClass().getEnumConstants()[newValue.intValue()]);
@@ -337,78 +441,57 @@ public final class FXUtils {
     * You should <b>only and always</b> use {@code bindEnum} as well as {@code unbindEnum} at the same time.
     * @param comboBox the combo box being bound with the property which can be inferred by {@code bindEnum}.
     * @see #bindEnum(JFXComboBox, Property)
+     * @deprecated Use {@link ExtendedProperties#selectedItemPropertyFor(ComboBox)}
     */
    @SuppressWarnings("unchecked")
+    @Deprecated
    public static void unbindEnum(JFXComboBox<?> comboBox) {
        ChangeListener listener = tryCast(comboBox.getProperties().get("FXUtils.bindEnum.listener"), ChangeListener.class).orElse(null);
        if (listener == null) return;
        comboBox.getSelectionModel().selectedIndexProperty().removeListener(listener);
    }

-    public static void smoothScrolling(ListView<?> listView) {
-        listView.skinProperty().addListener(o -> {
-            ScrollBar bar = (ScrollBar) listView.lookup(".scroll-bar");
-            Node virtualFlow = listView.lookup(".virtual-flow");
-            double[] frictions = new double[]{0.99, 0.1, 0.05, 0.04, 0.03, 0.02, 0.01, 0.04, 0.01, 0.008, 0.008, 0.008, 0.008, 0.0006, 0.0005, 0.00003, 0.00001};
-            double[] pushes = new double[]{1};
-            double[] derivatives = new double[frictions.length];
-
-            Timeline timeline = new Timeline();
-            bar.addEventHandler(MouseEvent.DRAG_DETECTED, e -> timeline.stop());
-
-            EventHandler<ScrollEvent> scrollEventHandler = event -> {
-                if (event.getEventType() == ScrollEvent.SCROLL) {
-                    int direction = event.getDeltaY() > 0 ? -1 : 1;
-                    for (int i = 0; i < pushes.length; ++i)
-                        derivatives[i] += direction * pushes[i];
-                    if (timeline.getStatus() == Animation.Status.STOPPED)
-                        timeline.play();
-                    event.consume();
-                }
-            };
-
-            bar.addEventHandler(ScrollEvent.ANY, scrollEventHandler);
-            virtualFlow.setOnScroll(scrollEventHandler);
-
-            timeline.getKeyFrames().add(new KeyFrame(Duration.millis(3), event -> {
-                for (int i = 0; i < derivatives.length; ++i)
-                    derivatives[i] *= frictions[i];
-                for (int i = 1; i < derivatives.length; ++i)
-                    derivatives[i] += derivatives[i - 1];
-                double dy = derivatives[derivatives.length - 1];
-                double height = listView.getLayoutBounds().getHeight();
-                bar.setValue(Math.min(Math.max(bar.getValue() + dy / height, 0), 1));
-                if (Math.abs(dy) < 0.001)
-                    timeline.stop();
-                listView.requestLayout();
-            }));
-            timeline.setCycleCount(Animation.INDEFINITE);
-        });
+    /**
+     * Suppress IllegalArgumentException since the url is supposed to be correct definitely.
+     * @param url the url of image. The image resource should be a file within the jar.
+     * @return the image resource within the jar.
+     * @see org.jackhuang.hmcl.util.CrashReporter
+     * @see ResourceNotFoundError
+     */
+    public static Image newImage(String url) {
+        try {
+            return new Image(url);
+        } catch (IllegalArgumentException e) {
+            throw new ResourceNotFoundError("Cannot access image: " + url, e);
+        }
    }

-    public static <T> T runInUIThread(Supplier<T> supplier) {
-        if (javafx.application.Platform.isFxApplicationThread()) {
-            return supplier.get();
-        } else {
-            CountDownLatch doneLatch = new CountDownLatch(1);
-            AtomicReference<T> reference = new AtomicReference<>();
-            Platform.runLater(() -> {
-                try {
-                    reference.set(supplier.get());
-                } finally {
-                    doneLatch.countDown();
-                }
+    public static void applyDragListener(Node node, FileFilter filter, Consumer<List<File>> callback) {
+        applyDragListener(node, filter, callback, null);
+    }

-            });
-
-            try {
-                doneLatch.await();
-            } catch (InterruptedException var3) {
-                Thread.currentThread().interrupt();
+    public static void applyDragListener(Node node, FileFilter filter, Consumer<List<File>> callback, Runnable dragDropped) {
+        node.setOnDragOver(event -> {
+            if (event.getGestureSource() != node && event.getDragboard().hasFiles()) {
+                if (event.getDragboard().getFiles().stream().anyMatch(filter::accept))
+                    event.acceptTransferModes(TransferMode.COPY_OR_MOVE);
            }
+            event.consume();
+        });

-            return reference.get();
-        }
+        node.setOnDragDropped(event -> {
+            List<File> files = event.getDragboard().getFiles();
+            if (files != null) {
+                List<File> acceptFiles = files.stream().filter(filter::accept).collect(Collectors.toList());
+                if (!acceptFiles.isEmpty()) {
+                    callback.accept(acceptFiles);
+                    event.setDropCompleted(true);
+                }
+            }
+            if (dragDropped != null)
+                dragDropped.run();
+            event.consume();
+        });
    }

    public static <T> StringConverter<T> stringConverter(Function<T, String> func) {
@@ -432,6 +515,7 @@ public final class FXUtils {
            public void updateItem(T item, boolean empty) {
                super.updateItem(item, empty);
                if (!empty) {
+                    setContentDisplay(ContentDisplay.GRAPHIC_ONLY);
                    setGraphic(graphicBuilder.apply(item));
                }
            }
@@ -449,4 +533,11 @@ public final class FXUtils {
            return "Interpolator.SINE";
        }
    };
+
+    public static Runnable withJFXPopupClosing(Runnable runnable, JFXPopup popup) {
+        return () -> {
+            runnable.run();
+            popup.hide();
+        };
+    }
 }
@@ -1,98 +0,0 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
- */
-package org.jackhuang.hmcl.ui;
-
-import javafx.fxml.FXML;
-import javafx.scene.control.ScrollPane;
-import javafx.scene.layout.VBox;
-
-import org.jackhuang.hmcl.download.MaintainTask;
-import org.jackhuang.hmcl.download.game.VersionJsonSaveTask;
-import org.jackhuang.hmcl.game.GameVersion;
-import org.jackhuang.hmcl.game.Library;
-import org.jackhuang.hmcl.game.Version;
-import org.jackhuang.hmcl.setting.Profile;
-import org.jackhuang.hmcl.task.Schedulers;
-import org.jackhuang.hmcl.task.Task;
-import org.jackhuang.hmcl.ui.download.InstallerWizardProvider;
-import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
-
-import java.util.LinkedList;
-import java.util.Optional;
-import java.util.function.Consumer;
-
-public class InstallerController {
-    private Profile profile;
-    private String versionId;
-    private Version version;
-    @FXML
-    private ScrollPane scrollPane;
-    @FXML private VBox contentPane;
-    private String forge;
-    private String liteLoader;
-    private String optiFine;
-
-    @FXML
-    private void initialize() {
-        FXUtils.smoothScrolling(scrollPane);
-    }
-
-    public void loadVersion(Profile profile, String versionId) {
-        this.profile = profile;
-        this.versionId = versionId;
-        this.version = profile.getRepository().getResolvedVersion(versionId);
-
-        contentPane.getChildren().clear();
-        forge = liteLoader = optiFine = null;
-
-        for (Library library : version.getLibraries()) {
-            Consumer<InstallerItem> removeAction = x -> {
-                LinkedList<Library> newList = new LinkedList<>(version.getLibraries());
-                newList.remove(library);
-                new MaintainTask(version.setLibraries(newList))
-                        .then(variables -> new VersionJsonSaveTask(profile.getRepository(), variables.get(MaintainTask.ID)))
-                        .with(profile.getRepository().refreshVersionsAsync())
-                        .with(Task.of(Schedulers.javafx(), () -> loadVersion(this.profile, this.versionId)))
-                        .start();
-            };
-
-            if (library.getGroupId().equalsIgnoreCase("net.minecraftforge") && library.getArtifactId().equalsIgnoreCase("forge")) {
-                contentPane.getChildren().add(new InstallerItem("Forge", library.getVersion(), removeAction));
-                forge = library.getVersion();
-            }
-            if (library.getGroupId().equalsIgnoreCase("com.mumfrey") && library.getArtifactId().equalsIgnoreCase("liteloader")) {
-                contentPane.getChildren().add(new InstallerItem("LiteLoader", library.getVersion(), removeAction));
-                liteLoader = library.getVersion();
-            }
-            if (library.getGroupId().equalsIgnoreCase("net.optifine") && library.getArtifactId().equalsIgnoreCase("optifine")) {
-                contentPane.getChildren().add(new InstallerItem("OptiFine", library.getVersion(), removeAction));
-                optiFine = library.getVersion();
-            }
-        }
-    }
-
-    @FXML
-    private void onAdd() {
-        Optional<String> gameVersion = GameVersion.minecraftVersion(profile.getRepository().getVersionJar(version));
-
-        if (!gameVersion.isPresent())
-            Controllers.dialog(i18n("version.cannot_read"));
-        else
-            Controllers.getDecorator().startWizard(new InstallerWizardProvider(profile, gameVersion.get(), version, forge, liteLoader, optiFine));
-    }
-}
@@ -1,7 +1,7 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
@@ -13,43 +13,204 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl.ui;

+import com.jfoenix.controls.JFXButton;
 import com.jfoenix.effects.JFXDepthManager;
-import javafx.fxml.FXML;
+import javafx.beans.binding.Bindings;
+import javafx.beans.property.*;
+import javafx.event.EventHandler;
+import javafx.geometry.Insets;
+import javafx.geometry.Pos;
+import javafx.scene.Cursor;
+import javafx.scene.control.Control;
 import javafx.scene.control.Label;
+import javafx.scene.control.Skin;
+import javafx.scene.control.SkinBase;
+import javafx.scene.image.Image;
+import javafx.scene.image.ImageView;
+import javafx.scene.input.MouseEvent;
 import javafx.scene.layout.BorderPane;
+import javafx.scene.layout.HBox;
+import javafx.scene.layout.Priority;
+import org.jackhuang.hmcl.download.LibraryAnalyzer;
+import org.jackhuang.hmcl.setting.Theme;
+import org.jackhuang.hmcl.util.i18n.I18n;

+import static org.jackhuang.hmcl.download.LibraryAnalyzer.LibraryType.*;
 import static org.jackhuang.hmcl.util.i18n.I18n.i18n;

-import java.util.function.Consumer;
-
 /**
 * @author huangyuhui
 */
-public class InstallerItem extends BorderPane {
-    private final Consumer<InstallerItem> deleteCallback;
+public class InstallerItem extends Control {
+    private final String id;
+    private final String imageUrl;
+    public final StringProperty libraryVersion = new SimpleStringProperty();
+    public final StringProperty incompatibleLibraryName = new SimpleStringProperty();
+    public final BooleanProperty incompatibleWithGame = new SimpleBooleanProperty();
+    public final BooleanProperty removable = new SimpleBooleanProperty();
+    public final BooleanProperty upgradable = new SimpleBooleanProperty(false);
+    public final BooleanProperty installable = new SimpleBooleanProperty(true);
+    public final ObjectProperty<EventHandler<? super MouseEvent>> removeAction = new SimpleObjectProperty<>();
+    public final ObjectProperty<EventHandler<? super MouseEvent>> action = new SimpleObjectProperty<>();

-    @FXML
-    private Label lblInstallerArtifact;
-
-    @FXML
-    private Label lblInstallerVersion;
-
-    public InstallerItem(String artifact, String version, Consumer<InstallerItem> deleteCallback) {
-        this.deleteCallback = deleteCallback;
-        FXUtils.loadFXML(this, "/assets/fxml/version/installer-item.fxml");
-
-        setStyle("-fx-background-radius: 2; -fx-background-color: white; -fx-padding: 8;");
-        JFXDepthManager.setDepth(this, 1);
-        lblInstallerArtifact.setText(artifact);
-        lblInstallerVersion.setText(i18n("archive.version") + ": " + version);
+    public InstallerItem(LibraryAnalyzer.LibraryType id) {
+        this(id.getPatchId());
    }

-    @FXML
-    private void onDelete() {
-        deleteCallback.accept(this);
+    public InstallerItem(String id) {
+        this.id = id;
+
+        switch (id) {
+            case "game":
+                imageUrl = "/assets/img/grass.png";
+                break;
+            case "fabric":
+                imageUrl = "/assets/img/fabric.png";
+                break;
+            case "forge":
+                imageUrl = "/assets/img/forge.png";
+                break;
+            case "liteloader":
+                imageUrl = "/assets/img/chicken.png";
+                break;
+            case "optifine":
+                imageUrl = "/assets/img/command.png";
+                break;
+            default:
+                imageUrl = null;
+                break;
+        }
+    }
+
+    public void setState(String libraryVersion, boolean incompatibleWithGame, boolean removable) {
+        this.libraryVersion.set(libraryVersion);
+        this.incompatibleWithGame.set(incompatibleWithGame);
+        this.removable.set(removable);
+    }
+
+    public String getLibraryId() {
+        return id;
+    }
+
+    @Override
+    protected Skin<?> createDefaultSkin() {
+        return new InstallerItemSkin(this);
+    }
+
+    public static class InstallerItemGroup {
+        public final InstallerItem game = new InstallerItem(MINECRAFT);
+        public final InstallerItem fabric = new InstallerItem(FABRIC);
+        public final InstallerItem forge = new InstallerItem(FORGE);
+        public final InstallerItem liteLoader = new InstallerItem(LITELOADER);
+        public final InstallerItem optiFine = new InstallerItem(OPTIFINE);
+
+        public InstallerItemGroup() {
+            forge.incompatibleLibraryName.bind(Bindings.createStringBinding(() -> {
+                if (fabric.libraryVersion.get() != null) return FABRIC.getPatchId();
+                return null;
+            }, fabric.libraryVersion));
+
+            liteLoader.incompatibleLibraryName.bind(Bindings.createStringBinding(() -> {
+                if (fabric.libraryVersion.get() != null) return FABRIC.getPatchId();
+                return null;
+            }, fabric.libraryVersion));
+
+            optiFine.incompatibleLibraryName.bind(Bindings.createStringBinding(() -> {
+                if (fabric.libraryVersion.get() != null) return FABRIC.getPatchId();
+                return null;
+            }, fabric.libraryVersion));
+
+            fabric.incompatibleLibraryName.bind(Bindings.createStringBinding(() -> {
+                if (liteLoader.libraryVersion.get() != null) return LITELOADER.getPatchId();
+                if (optiFine.libraryVersion.get() != null) return OPTIFINE.getPatchId();
+                if (forge.libraryVersion.get() != null) return FORGE.getPatchId();
+                return null;
+            }, optiFine.libraryVersion, forge.libraryVersion));
+        }
+
+        public InstallerItem[] getLibraries() {
+            return new InstallerItem[]{game, fabric, forge, liteLoader, optiFine};
+        }
+    }
+
+    public static class InstallerItemSkin extends SkinBase<InstallerItem> {
+
+        InstallerItemSkin(InstallerItem control) {
+            super(control);
+
+            HBox hbox = new HBox();
+            getChildren().setAll(hbox);
+            JFXDepthManager.setDepth(hbox, 1);
+
+            hbox.getStyleClass().add("card");
+
+            hbox.setAlignment(Pos.CENTER_LEFT);
+
+            if (control.imageUrl != null) {
+                hbox.getChildren().add(FXUtils.limitingSize(new ImageView(new Image(control.imageUrl, 32, 32, true, true)), 32, 32));
+            }
+
+            Label nameLabel = new Label();
+            hbox.getChildren().add(nameLabel);
+            nameLabel.setPrefWidth(80);
+            nameLabel.textProperty().set(I18n.hasKey("install.installer." + control.id) ? i18n("install.installer." + control.id) : control.id);
+            HBox.setMargin(nameLabel, new Insets(0, 4, 0, 4));
+
+            Label label = new Label();
+            hbox.getChildren().add(label);
+            label.setMaxWidth(Double.MAX_VALUE);
+            HBox.setHgrow(label, Priority.ALWAYS);
+            label.textProperty().bind(Bindings.createStringBinding(() -> {
+                String incompatibleWith = control.incompatibleLibraryName.get();
+                String version = control.libraryVersion.get();
+                if (control.incompatibleWithGame.get()) {
+                    return i18n("install.installer.change_version", version);
+                } else if (incompatibleWith != null) {
+                    return i18n("install.installer.incompatible", i18n("install.installer." + incompatibleWith));
+                } else if (version == null) {
+                    return i18n("install.installer.not_installed");
+                } else {
+                    return i18n("install.installer.version", version);
+                }
+            }, control.incompatibleLibraryName, control.incompatibleWithGame, control.libraryVersion));
+            BorderPane.setMargin(label, new Insets(0, 0, 0, 8));
+            BorderPane.setAlignment(label, Pos.CENTER_LEFT);
+
+            JFXButton closeButton = new JFXButton();
+            closeButton.setGraphic(SVG.close(Theme.blackFillBinding(), -1, -1));
+            closeButton.getStyleClass().add("toggle-icon4");
+            closeButton.visibleProperty().bind(control.removable);
+            closeButton.managedProperty().bind(closeButton.visibleProperty());
+            closeButton.onMouseClickedProperty().bind(control.removeAction);
+            hbox.getChildren().add(closeButton);
+
+            JFXButton arrowButton = new JFXButton();
+            arrowButton.graphicProperty().bind(Bindings.createObjectBinding(() -> control.upgradable.get()
+                            ? SVG.update(Theme.blackFillBinding(), -1, -1)
+                            : SVG.arrowRight(Theme.blackFillBinding(), -1, -1),
+                    control.upgradable));
+            arrowButton.getStyleClass().add("toggle-icon4");
+            arrowButton.visibleProperty().bind(Bindings.createBooleanBinding(
+                    () -> control.installable.get() && control.incompatibleLibraryName.get() == null,
+                    control.installable, control.incompatibleLibraryName));
+            arrowButton.managedProperty().bind(arrowButton.visibleProperty());
+            arrowButton.onMouseClickedProperty().bind(control.action);
+            hbox.getChildren().add(arrowButton);
+
+            FXUtils.onChangeAndOperate(arrowButton.visibleProperty(), clickable -> {
+                if (clickable) {
+                    hbox.onMouseClickedProperty().bind(control.action);
+                    hbox.setCursor(Cursor.HAND);
+                } else {
+                    hbox.onMouseClickedProperty().unbind();
+                    hbox.onMouseClickedProperty().set(null);
+                    hbox.setCursor(Cursor.DEFAULT);
+                }
+            });
+        }
    }
 }
@@ -1,273 +0,0 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
- */
-package org.jackhuang.hmcl.ui;
-
-import com.jfoenix.concurrency.JFXUtilities;
-import com.jfoenix.controls.JFXButton;
-import com.jfoenix.controls.JFXPopup;
-import javafx.application.Platform;
-import javafx.beans.binding.Bindings;
-import javafx.beans.binding.When;
-import javafx.beans.property.ListProperty;
-import javafx.beans.property.ObjectProperty;
-import javafx.beans.property.SimpleListProperty;
-import javafx.beans.property.SimpleObjectProperty;
-import javafx.scene.Node;
-import javafx.scene.control.Tooltip;
-import javafx.scene.image.Image;
-import javafx.scene.input.MouseButton;
-import javafx.scene.layout.Region;
-import javafx.scene.layout.VBox;
-import javafx.scene.paint.Color;
-
-import org.jackhuang.hmcl.auth.Account;
-import org.jackhuang.hmcl.auth.authlibinjector.AuthlibInjectorAccount;
-import org.jackhuang.hmcl.auth.offline.OfflineAccount;
-import org.jackhuang.hmcl.auth.yggdrasil.YggdrasilAccount;
-import org.jackhuang.hmcl.event.*;
-import org.jackhuang.hmcl.game.AccountHelper;
-import org.jackhuang.hmcl.game.HMCLGameRepository;
-import org.jackhuang.hmcl.game.ModpackHelper;
-import org.jackhuang.hmcl.mod.Modpack;
-import org.jackhuang.hmcl.mod.UnsupportedModpackException;
-import org.jackhuang.hmcl.setting.*;
-import org.jackhuang.hmcl.task.Schedulers;
-import org.jackhuang.hmcl.task.Task;
-import org.jackhuang.hmcl.task.TaskExecutor;
-import org.jackhuang.hmcl.ui.construct.*;
-import org.jackhuang.hmcl.upgrade.UpdateChecker;
-import org.jackhuang.hmcl.util.Lang;
-import org.jackhuang.hmcl.util.MappedObservableList;
-
-import java.io.File;
-import java.util.LinkedList;
-import java.util.Objects;
-import java.util.Optional;
-import java.util.concurrent.atomic.AtomicReference;
-
-import static javafx.collections.FXCollections.singletonObservableList;
-import static org.jackhuang.hmcl.ui.FXUtils.onInvalidating;
-import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
-
-public final class LeftPaneController {
-    private final AdvancedListBox leftPane;
-    private final VBox profilePane = new VBox();
-    private final VBox accountPane = new VBox();
-    private final IconedItem launcherSettingsItem;
-
-    private ListProperty<RipplerContainer> accountItems = new SimpleListProperty<>();
-    private ObjectProperty<Account> selectedAccount = new SimpleObjectProperty<Account>() {
-        {
-            accountItems.addListener(onInvalidating(this::invalidated));
-        }
-
-        @Override
-        protected void invalidated() {
-            Account selected = get();
-            accountItems.forEach(item -> item.setSelected(
-                    getAccountFromItem(item)
-                            .map(it -> it == selected)
-                            .orElse(false)));
-        }
-    };
-
-    public LeftPaneController(AdvancedListBox leftPane) {
-        this.leftPane = leftPane;
-
-        launcherSettingsItem = new IconedItem(SVG.gear(Theme.blackFillBinding(), 20, 20));
-
-        launcherSettingsItem.getLabel().textProperty().bind(
-                new When(UpdateChecker.outdatedProperty())
-                        .then(i18n("update.found"))
-                        .otherwise(i18n("settings.launcher")));
-
-        launcherSettingsItem.getLabel().textFillProperty().bind(
-                new When(UpdateChecker.outdatedProperty())
-                        .then(Color.RED)
-                        .otherwise(Color.BLACK));
-
-        launcherSettingsItem.prefWidthProperty().bind(leftPane.widthProperty());
-        launcherSettingsItem.setOnMouseClicked(e -> Controllers.navigate(Controllers.getSettingsPage()));
-
-        leftPane
-                .add(new ClassTitle(i18n("account").toUpperCase(), Lang.apply(new JFXButton(), button -> {
-                    button.setGraphic(SVG.plus(Theme.blackFillBinding(), 10, 10));
-                    button.getStyleClass().add("toggle-icon-tiny");
-                    button.setOnMouseClicked(e -> addNewAccount());
-                })))
-                .add(accountPane)
-                .startCategory(i18n("launcher").toUpperCase())
-                .add(launcherSettingsItem)
-                .add(new ClassTitle(i18n("profile.title").toUpperCase(), Lang.apply(new JFXButton(), button -> {
-                    button.setGraphic(SVG.plus(Theme.blackFillBinding(), 10, 10));
-                    button.getStyleClass().add("toggle-icon-tiny");
-                    button.setOnMouseClicked(e ->
-                            Controllers.getDecorator().showPage(new ProfilePage(null)));
-                })))
-                .add(profilePane);
-
-        // ==== Accounts ====
-        // Missing account item
-        AdvancedListItem missingAccountItem = new AdvancedListItem(i18n("account.missing"), i18n("message.unknown"));
-        RipplerContainer missingAccountRippler = new RipplerContainer(missingAccountItem);
-        missingAccountItem.setOnSettingsButtonClicked(e -> addNewAccount());
-        missingAccountRippler.setOnMouseClicked(e -> addNewAccount());
-
-        accountItems.bind(
-                new When(Accounts.accountsProperty().emptyProperty())
-                        .then(singletonObservableList(missingAccountRippler))
-                        .otherwise(MappedObservableList.create(Accounts.getAccounts(), this::createAccountItem)));
-        Bindings.bindContent(accountPane.getChildren(), accountItems);
-
-        selectedAccount.bindBidirectional(Accounts.selectedAccountProperty());
-        // ====
-
-        EventBus.EVENT_BUS.channel(ProfileLoadingEvent.class).register(this::onProfilesLoading);
-        EventBus.EVENT_BUS.channel(ProfileChangedEvent.class).register(this::onProfileChanged);
-        EventBus.EVENT_BUS.channel(RefreshedVersionsEvent.class).register(this::onRefreshedVersions);
-    }
-
-    // ==== Accounts ====
-    private Optional<Account> getAccountFromItem(RipplerContainer accountItem) {
-        return Optional.ofNullable(accountItem.getProperties().get("account"))
-                .map(Account.class::cast);
-    }
-
-    private static String accountSubtitle(Account account) {
-        if (account instanceof OfflineAccount)
-            return i18n("account.methods.offline");
-        else if (account instanceof YggdrasilAccount)
-            return account.getUsername();
-        else
-            return "";
-    }
-
-    private RipplerContainer createAccountItem(Account account) {
-        AdvancedListItem item = new AdvancedListItem(account.getCharacter(), accountSubtitle(account));
-        RipplerContainer rippler = new RipplerContainer(item);
-        item.setOnSettingsButtonClicked(e -> {
-            AccountPage accountPage = new AccountPage(account, item);
-            JFXPopup popup = new JFXPopup(accountPage);
-            accountPage.setOnDelete(popup::hide);
-            popup.show((Node) e.getSource(), JFXPopup.PopupVPosition.TOP, JFXPopup.PopupHPosition.LEFT, e.getX(), e.getY());
-        });
-        rippler.setOnMouseClicked(e -> {
-            if (e.getButton() == MouseButton.PRIMARY) {
-                selectedAccount.set(account);
-            }
-        });
-        rippler.getProperties().put("account", account);
-        rippler.maxWidthProperty().bind(leftPane.widthProperty());
-
-        if (account instanceof YggdrasilAccount) {
-            Image image = AccountHelper.getSkin((YggdrasilAccount) account, 4);
-            item.setImage(image, AccountHelper.getViewport(4));
-        } else {
-            item.setImage(AccountHelper.getDefaultSkin(account.getUUID(), 4), AccountHelper.getViewport(4));
-        }
-
-        if (account instanceof AuthlibInjectorAccount) {
-            FXUtils.installTooltip(rippler, 500, 5000, 0, new Tooltip(((AuthlibInjectorAccount) account).getServer().getName()));
-        }
-
-        // update skin
-        if (account instanceof YggdrasilAccount) {
-            AccountHelper.refreshSkinAsync((YggdrasilAccount) account)
-                    .subscribe(Schedulers.javafx(), () -> {
-                        Image image = AccountHelper.getSkin((YggdrasilAccount) account, 4);
-                        item.setImage(image, AccountHelper.getViewport(4));
-                    });
-        }
-
-        return rippler;
-    }
-
-    public void checkAccount() {
-        if (Accounts.getAccounts().isEmpty())
-            addNewAccount();
-    }
-
-    private void addNewAccount() {
-        Controllers.dialog(new AddAccountPane());
-    }
-    // ====
-
-    private void onProfileChanged(ProfileChangedEvent event) {
-        Profile profile = event.getProfile();
-
-        Platform.runLater(() -> {
-            for (Node node : profilePane.getChildren()) {
-                if (node instanceof RipplerContainer && node.getProperties().get("profile") instanceof String) {
-                    boolean current = Objects.equals(node.getProperties().get("profile"), profile.getName());
-                    ((RipplerContainer) node).setSelected(current);
-                    ((AdvancedListItem) ((RipplerContainer) node).getContainer()).setSubtitle(current ? i18n("profile.selected") : "");
-                }
-            }
-        });
-    }
-
-    private void onProfilesLoading() {
-        LinkedList<RipplerContainer> list = new LinkedList<>();
-        for (Profile profile : Settings.instance().getProfiles()) {
-            AdvancedListItem item = new AdvancedListItem(Profiles.getProfileDisplayName(profile));
-            RipplerContainer ripplerContainer = new RipplerContainer(item);
-            item.setOnSettingsButtonClicked(e -> Controllers.getDecorator().showPage(new ProfilePage(profile)));
-            ripplerContainer.setOnMouseClicked(e -> Settings.instance().setSelectedProfile(profile));
-            ripplerContainer.getProperties().put("profile", profile.getName());
-            ripplerContainer.maxWidthProperty().bind(leftPane.widthProperty());
-            list.add(ripplerContainer);
-        }
-        Platform.runLater(() -> profilePane.getChildren().setAll(list));
-    }
-
-    private boolean checkedModpack = false;
-    private static boolean showNewAccount = true;
-
-    private void onRefreshedVersions(RefreshedVersionsEvent event) {
-        JFXUtilities.runInFX(() -> {
-            HMCLGameRepository repository = (HMCLGameRepository) event.getSource();
-            if (!checkedModpack) {
-                checkedModpack = true;
-
-                if (repository.getVersionCount() == 0) {
-                    File modpackFile = new File("modpack.zip").getAbsoluteFile();
-                    if (modpackFile.exists()) {
-                        try {
-                            AtomicReference<Region> region = new AtomicReference<>();
-                            Modpack modpack = ModpackHelper.readModpackManifest(modpackFile);
-                            TaskExecutor executor = ModpackHelper.getInstallTask(repository.getProfile(), modpackFile, modpack.getName(), modpack)
-                                    .with(Task.of(Schedulers.javafx(), () -> {
-                                        region.get().fireEvent(new DialogCloseEvent());
-                                        checkAccount();
-                                    })).executor();
-                            region.set(Controllers.taskDialog(executor, i18n("modpack.installing"), ""));
-                            executor.start();
-                            showNewAccount = false;
-                        } catch (UnsupportedModpackException ignore) {
-                        }
-                    }
-                }
-            }
-
-            if (showNewAccount) {
-                showNewAccount = false;
-                checkAccount();
-            }
-        });
-    }
-}
@@ -0,0 +1,49 @@
+/*
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package org.jackhuang.hmcl.ui;
+
+import javafx.beans.property.BooleanProperty;
+import javafx.beans.property.SimpleBooleanProperty;
+import javafx.scene.Node;
+import javafx.scene.control.Skin;
+
+public abstract class ListPage<T extends Node> extends ListPageBase<T> {
+    private final BooleanProperty refreshable = new SimpleBooleanProperty(this, "refreshable", false);
+
+    public abstract void add();
+
+    public void refresh() {
+    }
+
+    @Override
+    protected Skin<?> createDefaultSkin() {
+        return new ListPageSkin(this);
+    }
+
+    public boolean isRefreshable() {
+        return refreshable.get();
+    }
+
+    public BooleanProperty refreshableProperty() {
+        return refreshable;
+    }
+
+    public void setRefreshable(boolean refreshable) {
+        this.refreshable.set(refreshable);
+    }
+}
@@ -0,0 +1,55 @@
+/*
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package org.jackhuang.hmcl.ui;
+
+import javafx.beans.property.BooleanProperty;
+import javafx.beans.property.ListProperty;
+import javafx.beans.property.SimpleBooleanProperty;
+import javafx.beans.property.SimpleListProperty;
+import javafx.collections.FXCollections;
+import javafx.collections.ObservableList;
+import javafx.scene.control.Control;
+
+public class ListPageBase<T> extends Control {
+    private final ListProperty<T> items = new SimpleListProperty<>(this, "items", FXCollections.observableArrayList());
+    private final BooleanProperty loading = new SimpleBooleanProperty(this, "loading", false);
+
+    public ObservableList<T> getItems() {
+        return items.get();
+    }
+
+    public void setItems(ObservableList<T> items) {
+        this.items.set(items);
+    }
+
+    public ListProperty<T> itemsProperty() {
+        return items;
+    }
+
+    public boolean isLoading() {
+        return loading.get();
+    }
+
+    public void setLoading(boolean loading) {
+        this.loading.set(loading);
+    }
+
+    public BooleanProperty loadingProperty() {
+        return loading;
+    }
+}
@@ -0,0 +1,112 @@
+/*
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package org.jackhuang.hmcl.ui;
+
+import com.jfoenix.controls.JFXButton;
+import com.jfoenix.controls.JFXScrollPane;
+import javafx.beans.binding.Bindings;
+import javafx.geometry.Insets;
+import javafx.geometry.Pos;
+import javafx.scene.control.ScrollPane;
+import javafx.scene.control.SkinBase;
+import javafx.scene.layout.BorderPane;
+import javafx.scene.layout.Pane;
+import javafx.scene.layout.StackPane;
+import javafx.scene.layout.VBox;
+import org.jackhuang.hmcl.setting.Theme;
+import org.jackhuang.hmcl.ui.construct.SpinnerPane;
+
+public class ListPageSkin extends SkinBase<ListPage<?>> {
+
+    public ListPageSkin(ListPage<?> skinnable) {
+        super(skinnable);
+
+        SpinnerPane spinnerPane = new SpinnerPane();
+        spinnerPane.getStyleClass().add("large-spinner-pane");
+        Pane placeholder = new Pane();
+        VBox list = new VBox();
+
+        StackPane contentPane = new StackPane();
+        {
+            ScrollPane scrollPane = new ScrollPane();
+            {
+                scrollPane.setFitToWidth(true);
+
+                list.maxWidthProperty().bind(scrollPane.widthProperty());
+                list.setSpacing(10);
+
+                VBox content = new VBox();
+                content.getChildren().setAll(list, placeholder);
+
+                Bindings.bindContent(list.getChildren(), skinnable.itemsProperty());
+
+                scrollPane.setContent(content);
+                JFXScrollPane.smoothScrolling(scrollPane);
+            }
+            
+            VBox vBox = new VBox();
+            {
+                vBox.getStyleClass().add("card-list");
+                vBox.setAlignment(Pos.BOTTOM_RIGHT);
+                vBox.setPickOnBounds(false);
+
+                JFXButton btnAdd = new JFXButton();
+                FXUtils.setLimitWidth(btnAdd, 40);
+                FXUtils.setLimitHeight(btnAdd, 40);
+                btnAdd.getStyleClass().add("jfx-button-raised-round");
+                btnAdd.setButtonType(JFXButton.ButtonType.RAISED);
+                btnAdd.setGraphic(SVG.plus(Theme.whiteFillBinding(), -1, -1));
+                btnAdd.setOnMouseClicked(e -> skinnable.add());
+
+                JFXButton btnRefresh = new JFXButton();
+                FXUtils.setLimitWidth(btnRefresh, 40);
+                FXUtils.setLimitHeight(btnRefresh, 40);
+                btnRefresh.getStyleClass().add("jfx-button-raised-round");
+                btnRefresh.setButtonType(JFXButton.ButtonType.RAISED);
+                btnRefresh.setGraphic(SVG.refresh(Theme.whiteFillBinding(), -1, -1));
+                btnRefresh.setOnMouseClicked(e -> skinnable.refresh());
+
+                vBox.getChildren().setAll(btnAdd);
+
+                FXUtils.onChangeAndOperate(skinnable.refreshableProperty(),
+                        refreshable -> {
+                            if (refreshable) {
+                                list.setPadding(new Insets(10, 10, 15 + 40 + 15 + 40 + 15, 10));
+                                vBox.getChildren().setAll(btnRefresh, btnAdd);
+                            } else {
+                                list.setPadding(new Insets(10, 10, 15 + 40 + 15, 10));
+                                vBox.getChildren().setAll(btnAdd);
+                            }
+                        });
+            }
+
+            // Keep a blank space to prevent buttons from blocking up mod items.
+            BorderPane group = new BorderPane();
+            group.setPickOnBounds(false);
+            group.setBottom(vBox);
+            placeholder.minHeightProperty().bind(vBox.heightProperty());
+
+            contentPane.getChildren().setAll(scrollPane, group);
+        }
+
+        spinnerPane.loadingProperty().bind(skinnable.loadingProperty());
+        spinnerPane.setContent(contentPane);
+
+        getChildren().setAll(spinnerPane);
+    }
+}
@@ -1,6 +1,6 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
@@ -13,234 +13,322 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl.ui;

+import com.jfoenix.controls.JFXButton;
+import com.jfoenix.controls.JFXCheckBox;
+import com.jfoenix.controls.JFXComboBox;
+import com.jfoenix.controls.JFXListView;
+import javafx.application.Platform;
+import javafx.beans.InvalidationListener;
 import javafx.beans.binding.Bindings;
-import javafx.beans.property.ReadOnlyIntegerProperty;
-import javafx.beans.property.ReadOnlyIntegerWrapper;
-import javafx.concurrent.Worker;
-import javafx.fxml.FXML;
+import javafx.beans.property.*;
+import javafx.beans.value.WeakChangeListener;
+import javafx.css.PseudoClass;
+import javafx.geometry.Insets;
+import javafx.geometry.Pos;
 import javafx.scene.Scene;
-import javafx.scene.control.ComboBox;
-import javafx.scene.control.ToggleButton;
-import javafx.scene.image.Image;
-import javafx.scene.layout.StackPane;
-import javafx.scene.web.WebEngine;
-import javafx.scene.web.WebView;
+import javafx.scene.control.*;
+import javafx.scene.control.Label;
+import javafx.scene.layout.*;
 import javafx.stage.Stage;
-
-import org.jackhuang.hmcl.event.Event;
-import org.jackhuang.hmcl.event.EventManager;
 import org.jackhuang.hmcl.game.LauncherHelper;
-import org.jackhuang.hmcl.setting.Settings;
-import org.jackhuang.hmcl.util.IOUtils;
-import org.jackhuang.hmcl.util.Lang;
 import org.jackhuang.hmcl.util.Log4jLevel;
-import org.jackhuang.hmcl.util.StringUtils;
-import org.w3c.dom.Document;
-import org.w3c.dom.Element;
-import org.w3c.dom.Node;
+
+import javax.swing.*;
+import java.awt.*;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
+import java.util.ArrayDeque;
+import java.util.EnumMap;
+import java.util.List;
+import java.util.Map;
+import java.util.logging.Level;
+import java.util.stream.Collectors;
+import java.util.stream.IntStream;

 import static org.jackhuang.hmcl.setting.ConfigHolder.config;
+import static org.jackhuang.hmcl.ui.FXUtils.newImage;
+import static org.jackhuang.hmcl.util.Lang.thread;
+import static org.jackhuang.hmcl.util.Logging.LOG;
+import static org.jackhuang.hmcl.util.StringUtils.parseEscapeSequence;
 import static org.jackhuang.hmcl.util.i18n.I18n.i18n;

-import java.util.concurrent.CountDownLatch;
-
 /**
 *
 * @author huangyuhui
 */
 public final class LogWindow extends Stage {

-    private final ReadOnlyIntegerWrapper fatal = new ReadOnlyIntegerWrapper(0);
-    private final ReadOnlyIntegerWrapper error = new ReadOnlyIntegerWrapper(0);
-    private final ReadOnlyIntegerWrapper warn = new ReadOnlyIntegerWrapper(0);
-    private final ReadOnlyIntegerWrapper info = new ReadOnlyIntegerWrapper(0);
-    private final ReadOnlyIntegerWrapper debug = new ReadOnlyIntegerWrapper(0);
+    private final ArrayDeque<Log> logs = new ArrayDeque<>();
+    private final Map<Log4jLevel, SimpleIntegerProperty> levelCountMap = new EnumMap<Log4jLevel, SimpleIntegerProperty>(Log4jLevel.class) {
+        {
+            for (Log4jLevel level : Log4jLevel.values()) put(level, new SimpleIntegerProperty());
+        }
+    };
+    private final Map<Log4jLevel, SimpleBooleanProperty> levelShownMap = new EnumMap<Log4jLevel, SimpleBooleanProperty>(Log4jLevel.class) {
+        {
+            for (Log4jLevel level : Log4jLevel.values()) {
+                SimpleBooleanProperty property = new SimpleBooleanProperty(true);
+                put(level, property);
+            }
+        }
+    };
    private final LogWindowImpl impl = new LogWindowImpl();
-    private final CountDownLatch latch = new CountDownLatch(1);
-    public final EventManager<Event> onDone = new EventManager<>();
+    private final WeakChangeListener<Number> logLinesListener = FXUtils.onWeakChange(config().logLinesProperty(), logLines -> checkLogCount());
+
+    private boolean stopCheckLogCount = false;

    public LogWindow() {
        setScene(new Scene(impl, 800, 480));
        getScene().getStylesheets().addAll(config().getTheme().getStylesheets());
        setTitle(i18n("logwindow.title"));
-        getIcons().add(new Image("/assets/img/icon.png"));
-    }
+        getIcons().add(newImage("/assets/img/icon.png"));

-    public LogWindow(String text) {
-        this();
-
-        onDone.register(() -> logLine(text, Log4jLevel.INFO));
-    }
-
-    public ReadOnlyIntegerProperty fatalProperty() {
-        return fatal.getReadOnlyProperty();
-    }
-
-    public int getFatal() {
-        return fatal.get();
-    }
-
-    public ReadOnlyIntegerProperty errorProperty() {
-        return error.getReadOnlyProperty();
-    }
-
-    public int getError() {
-        return error.get();
-    }
-
-    public ReadOnlyIntegerProperty warnProperty() {
-        return warn.getReadOnlyProperty();
-    }
-
-    public int getWarn() {
-        return warn.get();
-    }
-
-    public ReadOnlyIntegerProperty infoProperty() {
-        return info.getReadOnlyProperty();
-    }
-
-    public int getInfo() {
-        return info.get();
-    }
-
-    public ReadOnlyIntegerProperty debugProperty() {
-        return debug.getReadOnlyProperty();
-    }
-
-    public int getDebug() {
-        return debug.get();
+        levelShownMap.values().forEach(property -> property.addListener((a, b, newValue) -> shakeLogs()));
    }

    public void logLine(String line, Log4jLevel level) {
-        Element div = impl.document.createElement("div");
-        // a <pre> element to prevent multiple spaces and tabs being removed.
-        Element pre = impl.document.createElement("pre");
-        pre.setTextContent(line);
-        div.appendChild(pre);
-        impl.body.appendChild(div);
-        impl.engine.executeScript("checkNewLog(\"" + level.name().toLowerCase() + "\");scrollToBottom();");
+        Log log = new Log(parseEscapeSequence(line), level);
+        logs.add(log);
+        if (levelShownMap.get(level).get())
+            impl.listView.getItems().add(log);

-        switch (level) {
-            case FATAL:
-                fatal.set(fatal.get() + 1);
-                break;
-            case ERROR:
-                error.set(error.get() + 1);
-                break;
-            case WARN:
-                warn.set(warn.get() + 1);
-                break;
-            case INFO:
-                info.set(info.get() + 1);
-                break;
-            case DEBUG:
-                debug.set(debug.get() + 1);
-                break;
-            default:
-                // ignore
+        levelCountMap.get(level).setValue(levelCountMap.get(level).getValue() + 1);
+        if (!stopCheckLogCount) checkLogCount();
+    }
+
+    public void showGameCrashReport() {
+        stopCheckLogCount = true;
+        for (Log log : impl.listView.getItems()) {
+            if (log.log.contains("Minecraft Crash Report")) {
+                Platform.runLater(() -> {
+                    impl.listView.scrollTo(log);
+                });
                break;
+            }
+        }
+        show();
+    }
+
+    private void shakeLogs() {
+        impl.listView.getItems().setAll(logs.stream().filter(log -> levelShownMap.get(log.level).get()).collect(Collectors.toList()));
+    }
+
+    private void checkLogCount() {
+        while (logs.size() > config().getLogLines()) {
+            Log removedLog = logs.removeFirst();
+            if (!impl.listView.getItems().isEmpty() && impl.listView.getItems().get(0) == removedLog) {
+                // TODO: fix O(n)
+                impl.listView.getItems().remove(0);
+            }
        }
    }

-    public void waitForLoaded() throws InterruptedException {
-        latch.await();
+    private static class Log {
+        private final String log;
+        private final Log4jLevel level;
+
+        public Log(String log, Log4jLevel level) {
+            this.log = log;
+            this.level = level;
+        }
    }

-    public class LogWindowImpl extends StackPane {
+    public class LogWindowImpl extends Control {

-        @FXML
-        private WebView webView;
-        @FXML
-        private ToggleButton btnFatals;
-        @FXML
-        private ToggleButton btnErrors;
-        @FXML
-        private ToggleButton btnWarns;
-        @FXML
-        private ToggleButton btnInfos;
-        @FXML
-        private ToggleButton btnDebugs;
-        @FXML
-        private ComboBox<String> cboLines;
-
-        final WebEngine engine;
-        Node body;
-        Document document;
+        private ListView<Log> listView = new JFXListView<>();
+        private BooleanProperty autoScroll = new SimpleBooleanProperty();
+        private List<StringProperty> buttonText = IntStream.range(0, 5).mapToObj(x -> new SimpleStringProperty()).collect(Collectors.toList());
+        private List<BooleanProperty> showLevel = IntStream.range(0, 5).mapToObj(x -> new SimpleBooleanProperty(true)).collect(Collectors.toList());
+        private JFXComboBox<String> cboLines = new JFXComboBox<>();

        LogWindowImpl() {
-            FXUtils.loadFXML(this, "/assets/fxml/log.fxml");
-
-            engine = webView.getEngine();
-            engine.loadContent(Lang.ignoringException(() -> IOUtils.readFullyAsString(getClass().getResourceAsStream("/assets/log-window-content.html")))
-                    .replace("${FONT}", Settings.instance().getFont().getSize() + "px \"" + Settings.instance().getFont().getFamily() + "\""));
-            engine.getLoadWorker().stateProperty().addListener((a, b, newValue) -> {
-                if (newValue == Worker.State.SUCCEEDED) {
-                    document = engine.getDocument();
-                    body = document.getElementsByTagName("body").item(0);
-                    engine.executeScript("limitedLogs=" + Settings.instance().getLogLines());
-                    latch.countDown();
-                    onDone.fireEvent(new Event(LogWindow.this));
-                }
-            });
+            getStyleClass().add("log-window");

            boolean flag = false;
+            cboLines.getItems().setAll("500", "2000", "5000");
            for (String i : cboLines.getItems())
-                if (Integer.toString(Settings.instance().getLogLines()).equals(i)) {
+                if (Integer.toString(config().getLogLines()).equals(i)) {
                    cboLines.getSelectionModel().select(i);
                    flag = true;
                }

            cboLines.getSelectionModel().selectedItemProperty().addListener((a, b, newValue) -> {
-                Settings.instance().setLogLines(newValue == null ? 100 : Integer.parseInt(newValue));
-                engine.executeScript("limitedLogs=" + Settings.instance().getLogLines());
+                config().setLogLines(newValue == null ? 100 : Integer.parseInt(newValue));
            });

            if (!flag)
                cboLines.getSelectionModel().select(0);

-            btnFatals.textProperty().bind(Bindings.createStringBinding(() -> Integer.toString(fatal.get()) + " fatals", fatal));
-            btnErrors.textProperty().bind(Bindings.createStringBinding(() -> Integer.toString(error.get()) + " errors", error));
-            btnWarns.textProperty().bind(Bindings.createStringBinding(() -> Integer.toString(warn.get()) + " warns", warn));
-            btnInfos.textProperty().bind(Bindings.createStringBinding(() -> Integer.toString(info.get()) + " infos", info));
-            btnDebugs.textProperty().bind(Bindings.createStringBinding(() -> Integer.toString(debug.get()) + " debugs", debug));
-
-            btnFatals.selectedProperty().addListener(o -> specificChanged());
-            btnErrors.selectedProperty().addListener(o -> specificChanged());
-            btnWarns.selectedProperty().addListener(o -> specificChanged());
-            btnInfos.selectedProperty().addListener(o -> specificChanged());
-            btnDebugs.selectedProperty().addListener(o -> specificChanged());
+            Log4jLevel[] levels = new Log4jLevel[]{Log4jLevel.FATAL, Log4jLevel.ERROR, Log4jLevel.WARN, Log4jLevel.INFO, Log4jLevel.DEBUG};
+            String[] suffix = new String[]{"fatals", "errors", "warns", "infos", "debugs"};
+            for (int i = 0; i < 5; ++i) {
+                buttonText.get(i).bind(Bindings.concat(levelCountMap.get(levels[i]), " " + suffix[i]));
+                levelShownMap.get(levels[i]).bind(showLevel.get(i));
+            }
        }

-        private void specificChanged() {
-            String res = "";
-            if (btnFatals.isSelected())
-                res += "\"fatal\", ";
-            if (btnErrors.isSelected())
-                res += "\"error\", ";
-            if (btnWarns.isSelected())
-                res += "\"warn\", ";
-            if (btnInfos.isSelected())
-                res += "\"info\", ";
-            if (btnDebugs.isSelected())
-                res += "\"debug\", ";
-            if (StringUtils.isNotBlank(res))
-                res = StringUtils.substringBeforeLast(res, ", ");
-            engine.executeScript("specific([" + res + "])");
-        }
-
-        @FXML
        private void onTerminateGame() {
            LauncherHelper.stopManagedProcesses();
        }

-        @FXML
        private void onClear() {
-            engine.executeScript("clear()");
+            impl.listView.getItems().clear();
+            logs.clear();
+        }
+
+        private void onExportLogs() {
+            thread(() -> {
+                Path logFile = Paths.get("minecraft-exported-logs-" + LocalDateTime.now().format(DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH-mm-ss")) + ".log").toAbsolutePath();
+                try {
+                    Files.write(logFile, logs.stream().map(x -> x.log).collect(Collectors.toList()));
+                } catch (IOException e) {
+                    LOG.log(Level.WARNING, "Failed to export logs", e);
+                    return;
+                }
+
+                JOptionPane.showMessageDialog(null, i18n("settings.launcher.launcher_log.export.success", logFile), i18n("settings.launcher.launcher_log.export"), JOptionPane.INFORMATION_MESSAGE);
+                if (Desktop.isDesktopSupported()) {
+                    try {
+                        Desktop.getDesktop().open(logFile.toFile());
+                    } catch (IOException | IllegalArgumentException ignored) {
+                    }
+                }
+            });
+        }
+
+        @Override
+        protected Skin<?> createDefaultSkin() {
+            return new LogWindowSkin(this);
+        }
+    }
+
+    private static class LogWindowSkin extends SkinBase<LogWindowImpl> {
+        private static PseudoClass EMPTY = PseudoClass.getPseudoClass("empty");
+        private static PseudoClass FATAL = PseudoClass.getPseudoClass("fatal");
+        private static PseudoClass ERROR = PseudoClass.getPseudoClass("error");
+        private static PseudoClass WARN = PseudoClass.getPseudoClass("warn");
+        private static PseudoClass INFO = PseudoClass.getPseudoClass("info");
+        private static PseudoClass DEBUG = PseudoClass.getPseudoClass("debug");
+        private static PseudoClass TRACE = PseudoClass.getPseudoClass("trace");
+
+        private static ToggleButton createToggleButton(String backgroundColor, StringProperty buttonText, BooleanProperty showLevel) {
+            ToggleButton button = new ToggleButton();
+            button.setStyle("-fx-background-color: " + backgroundColor + ";");
+            button.getStyleClass().add("log-toggle");
+            button.textProperty().bind(buttonText);
+            button.setSelected(true);
+            showLevel.bind(button.selectedProperty());
+            return button;
+        }
+
+        protected LogWindowSkin(LogWindowImpl control) {
+            super(control);
+
+            VBox vbox = new VBox(3);
+            vbox.setPadding(new Insets(3, 0, 3, 0));
+            vbox.setStyle("-fx-background-color: white");
+            getChildren().setAll(vbox);
+
+            {
+                BorderPane borderPane = new BorderPane();
+                borderPane.setPadding(new Insets(0, 3, 0, 3));
+
+                {
+                    HBox hBox = new HBox(3);
+                    hBox.setPadding(new Insets(0, 0, 0, 4));
+                    hBox.setAlignment(Pos.CENTER_LEFT);
+
+                    Label label = new Label(i18n("logwindow.show_lines"));
+                    hBox.getChildren().setAll(label, control.cboLines);
+
+                    borderPane.setLeft(hBox);
+                }
+
+                {
+                    HBox hBox = new HBox(3);
+                    hBox.getChildren().setAll(
+                            createToggleButton("#F7A699", control.buttonText.get(0), control.showLevel.get(0)),
+                            createToggleButton("#FFCCBB", control.buttonText.get(1), control.showLevel.get(1)),
+                            createToggleButton("#FFEECC", control.buttonText.get(2), control.showLevel.get(2)),
+                            createToggleButton("#FBFBFB", control.buttonText.get(3), control.showLevel.get(3)),
+                            createToggleButton("#EEE9E0", control.buttonText.get(4), control.showLevel.get(4))
+                    );
+                    borderPane.setRight(hBox);
+                }
+
+                vbox.getChildren().add(borderPane);
+            }
+
+            {
+                ListView<Log> listView = control.listView;
+                listView.getItems().addListener((InvalidationListener) observable -> {
+                    if (!listView.getItems().isEmpty() && control.autoScroll.get())
+                        listView.scrollTo(listView.getItems().size() - 1);
+                });
+                listView.setStyle("-fx-font-family: " + config().getFontFamily() + "; -fx-font-size: " + config().getFontSize() + "px;");
+                listView.setCellFactory(x -> new ListCell<Log>() {
+                    {
+                        Region clippedContainer = (Region)listView.lookup(".clipped-container");
+                        if (clippedContainer != null) {
+                            maxWidthProperty().bind(clippedContainer.widthProperty());
+                            prefWidthProperty().bind(clippedContainer.widthProperty());
+                        }
+                        setPadding(new Insets(2));
+                        setWrapText(true);
+                        setGraphic(null);
+                    }
+
+                    @Override
+                    protected void updateItem(Log item, boolean empty) {
+                        super.updateItem(item, empty);
+                        pseudoClassStateChanged(EMPTY, empty);
+                        pseudoClassStateChanged(FATAL, !empty && item.level == Log4jLevel.FATAL);
+                        pseudoClassStateChanged(ERROR, !empty && item.level == Log4jLevel.ERROR);
+                        pseudoClassStateChanged(WARN, !empty && item.level == Log4jLevel.WARN);
+                        pseudoClassStateChanged(INFO, !empty && item.level == Log4jLevel.INFO);
+                        pseudoClassStateChanged(DEBUG, !empty && item.level == Log4jLevel.DEBUG);
+                        pseudoClassStateChanged(TRACE, !empty && item.level == Log4jLevel.TRACE);
+                        if (empty) {
+                            setText(null);
+                        } else {
+                            setText(item.log);
+                        }
+                    }
+                });
+
+                VBox.setVgrow(listView, Priority.ALWAYS);
+                vbox.getChildren().add(listView);
+            }
+
+            {
+                HBox hBox = new HBox(3);
+                hBox.setAlignment(Pos.CENTER_RIGHT);
+                hBox.setPadding(new Insets(0, 3, 0, 3));
+
+                JFXCheckBox autoScrollCheckBox = new JFXCheckBox(i18n("logwindow.autoscroll"));
+                autoScrollCheckBox.setSelected(true);
+                control.autoScroll.bind(autoScrollCheckBox.selectedProperty());
+
+                JFXButton terminateButton = new JFXButton(i18n("logwindow.terminate_game"));
+                terminateButton.setOnMouseClicked(e -> getSkinnable().onTerminateGame());
+
+                JFXButton exportLogsButton = new JFXButton(i18n("button.export"));
+                exportLogsButton.setOnMouseClicked(e -> getSkinnable().onExportLogs());
+
+                JFXButton clearButton = new JFXButton(i18n("button.clear"));
+                clearButton.setOnMouseClicked(e -> getSkinnable().onClear());
+                hBox.getChildren().setAll(autoScrollCheckBox, exportLogsButton, terminateButton, clearButton);
+
+                vbox.getChildren().add(hBox);
+            }
        }
    }
 }
@@ -1,262 +0,0 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
- */
-package org.jackhuang.hmcl.ui;
-
-import com.jfoenix.concurrency.JFXUtilities;
-import com.jfoenix.controls.*;
-import javafx.beans.property.SimpleStringProperty;
-import javafx.beans.property.StringProperty;
-import javafx.fxml.FXML;
-import javafx.scene.Node;
-import javafx.scene.control.ScrollPane;
-import javafx.scene.image.Image;
-import javafx.scene.input.MouseButton;
-import javafx.scene.layout.Region;
-import javafx.scene.layout.StackPane;
-import javafx.stage.FileChooser;
-
-import org.jackhuang.hmcl.event.EventBus;
-import org.jackhuang.hmcl.event.ProfileChangedEvent;
-import org.jackhuang.hmcl.event.RefreshedVersionsEvent;
-import org.jackhuang.hmcl.event.RefreshingVersionsEvent;
-import org.jackhuang.hmcl.game.*;
-import org.jackhuang.hmcl.mod.MismatchedModpackTypeException;
-import org.jackhuang.hmcl.mod.UnsupportedModpackException;
-import org.jackhuang.hmcl.setting.Accounts;
-import org.jackhuang.hmcl.setting.Profile;
-import org.jackhuang.hmcl.setting.Settings;
-import org.jackhuang.hmcl.task.Schedulers;
-import org.jackhuang.hmcl.task.Task;
-import org.jackhuang.hmcl.task.TaskExecutor;
-import org.jackhuang.hmcl.ui.construct.DialogCloseEvent;
-import org.jackhuang.hmcl.ui.construct.MessageBox;
-import org.jackhuang.hmcl.ui.download.DownloadWizardProvider;
-import org.jackhuang.hmcl.ui.wizard.DecoratorPage;
-import org.jackhuang.hmcl.util.Lang;
-import org.jackhuang.hmcl.util.OperatingSystem;
-import org.jackhuang.hmcl.util.VersionNumber;
-
-import java.io.File;
-import java.io.IOException;
-import java.util.List;
-import java.util.concurrent.Callable;
-import java.util.concurrent.atomic.AtomicReference;
-import java.util.stream.Collectors;
-
-import static org.jackhuang.hmcl.util.StringUtils.removePrefix;
-import static org.jackhuang.hmcl.util.StringUtils.removeSuffix;
-import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
-
-public final class MainPage extends StackPane implements DecoratorPage {
-
-    private final StringProperty title = new SimpleStringProperty(this, "title", i18n("main_page"));
-
-    private Profile profile;
-
-    @FXML
-    private JFXButton btnRefresh;
-    @FXML
-    private StackPane contentPane;
-    @FXML
-    private JFXButton btnAdd;
-    @FXML
-    private JFXSpinner spinner;
-    @FXML
-    private JFXMasonryPane masonryPane;
-    @FXML
-    private ScrollPane scrollPane;
-
-    {
-        FXUtils.loadFXML(this, "/assets/fxml/main.fxml");
-
-        loadingVersions();
-
-        EventBus.EVENT_BUS.channel(RefreshedVersionsEvent.class).register(event -> {
-            if (event.getSource() == profile.getRepository())
-                loadVersions((HMCLGameRepository) event.getSource());
-        });
-        EventBus.EVENT_BUS.channel(RefreshingVersionsEvent.class).register(event -> {
-            if (event.getSource() == profile.getRepository())
-                // This will occupy 0.5s. Too slow!
-                JFXUtilities.runInFX(this::loadingVersions);
-        });
-        EventBus.EVENT_BUS.channel(ProfileChangedEvent.class).register(event -> {
-            this.profile = event.getProfile();
-        });
-
-        btnAdd.setOnMouseClicked(e -> Controllers.getDecorator().startWizard(new DownloadWizardProvider(), i18n("install")));
-        FXUtils.installTooltip(btnAdd, i18n("install"));
-        btnRefresh.setOnMouseClicked(e -> Settings.instance().getSelectedProfile().getRepository().refreshVersionsAsync().start());
-        FXUtils.installTooltip(btnRefresh, i18n("button.refresh"));
-    }
-
-    private String modifyVersion(String gameVersion, String version) {
-        return removeSuffix(removePrefix(removeSuffix(removePrefix(version.replace(gameVersion, "").trim(), "-"), "-"), "_"), "_");
-    }
-
-    private Node buildNode(HMCLGameRepository repository, Version version, Callable<String> gameCallable) {
-        Profile profile = repository.getProfile();
-        String id = version.getId();
-        VersionItem item = new VersionItem();
-        item.setUpdate(repository.isModpack(id));
-        Task.ofResult("game", gameCallable).subscribe(Schedulers.javafx(), vars -> {
-            String game = vars.get("game");
-            item.setGameVersion(game);
-
-            StringBuilder libraries = new StringBuilder();
-            for (Library library : version.getLibraries()) {
-                if (library.getGroupId().equalsIgnoreCase("net.minecraftforge") && library.getArtifactId().equalsIgnoreCase("forge")) {
-                    libraries.append(i18n("install.installer.forge")).append(": ").append(modifyVersion(game, library.getVersion().replaceAll("(?i)forge", ""))).append("\n");
-                }
-                if (library.getGroupId().equalsIgnoreCase("com.mumfrey") && library.getArtifactId().equalsIgnoreCase("liteloader")) {
-                    libraries.append(i18n("install.installer.liteloader")).append(": ").append(modifyVersion(game, library.getVersion().replaceAll("(?i)liteloader", ""))).append("\n");
-                }
-                if (library.getGroupId().equalsIgnoreCase("net.optifine") && library.getArtifactId().equalsIgnoreCase("optifine")) {
-                    libraries.append(i18n("install.installer.optifine")).append(": ").append(modifyVersion(game, library.getVersion().replaceAll("(?i)optifine", ""))).append("\n");
-                }
-            }
-
-            item.setLibraries(libraries.toString());
-        });
-        item.setVersionName(id);
-        item.setOnLaunchButtonClicked(e -> {
-            if (Accounts.getSelectedAccount() == null)
-                Controllers.getLeftPaneController().checkAccount();
-            else
-                LauncherHelper.INSTANCE.launch(profile, Accounts.getSelectedAccount(), id, null);
-        });
-        item.setOnScriptButtonClicked(e -> {
-            if (Accounts.getSelectedAccount() == null)
-                Controllers.dialog(i18n("login.empty_username"));
-            else {
-                FileChooser chooser = new FileChooser();
-                if (repository.getRunDirectory(id).isDirectory())
-                    chooser.setInitialDirectory(repository.getRunDirectory(id));
-                chooser.setTitle(i18n("version.launch_script.save"));
-                chooser.getExtensionFilters().add(OperatingSystem.CURRENT_OS == OperatingSystem.WINDOWS
-                        ? new FileChooser.ExtensionFilter(i18n("extension.bat"), "*.bat")
-                        : new FileChooser.ExtensionFilter(i18n("extension.sh"), "*.sh"));
-                File file = chooser.showSaveDialog(Controllers.getStage());
-                if (file != null)
-                    LauncherHelper.INSTANCE.launch(profile, Accounts.getSelectedAccount(), id, file);
-            }
-        });
-        item.setOnSettingsButtonClicked(e -> {
-            Controllers.getDecorator().showPage(Controllers.getVersionPage());
-            Controllers.getVersionPage().load(id, profile);
-        });
-        item.setOnUpdateButtonClicked(event -> {
-            FileChooser chooser = new FileChooser();
-            chooser.setTitle(i18n("modpack.choose"));
-            chooser.getExtensionFilters().add(new FileChooser.ExtensionFilter(i18n("modpack"), "*.zip"));
-            File selectedFile = chooser.showOpenDialog(Controllers.getStage());
-            if (selectedFile != null) {
-                AtomicReference<Region> region = new AtomicReference<>();
-                try {
-                    TaskExecutor executor = ModpackHelper.getUpdateTask(profile, selectedFile, id, ModpackHelper.readModpackConfiguration(repository.getModpackConfiguration(id)))
-                            .then(Task.of(Schedulers.javafx(), () -> region.get().fireEvent(new DialogCloseEvent()))).executor();
-                    region.set(Controllers.taskDialog(executor, i18n("modpack.update"), ""));
-                    executor.start();
-                } catch (UnsupportedModpackException e) {
-                    region.get().fireEvent(new DialogCloseEvent());
-                    Controllers.dialog(i18n("modpack.unsupported"), i18n("message.error"), MessageBox.ERROR_MESSAGE);
-                } catch (MismatchedModpackTypeException e) {
-                    region.get().fireEvent(new DialogCloseEvent());
-                    Controllers.dialog(i18n("modpack.mismatched_type"), i18n("message.error"), MessageBox.ERROR_MESSAGE);
-                } catch (IOException e) {
-                    region.get().fireEvent(new DialogCloseEvent());
-                    Controllers.dialog(i18n("modpack.invalid"), i18n("message.error"), MessageBox.ERROR_MESSAGE);
-                }
-            }
-        });
-        item.setOnMouseClicked(event -> {
-            if (event.getButton() == MouseButton.SECONDARY) {
-                JFXListView<String> versionList = new JFXListView<>();
-                JFXPopup versionPopup = new JFXPopup(versionList);
-                versionList.getStyleClass().add("option-list-view");
-                FXUtils.setLimitWidth(versionList, 150);
-                versionList.getItems().setAll(Lang.immutableListOf(
-                        i18n("version.manage.rename"),
-                        i18n("version.manage.remove"),
-                        i18n("modpack.export"),
-                        i18n("folder.game")
-                ));
-                versionList.setOnMouseClicked(e -> {
-                    versionPopup.hide();
-                    switch (versionList.getSelectionModel().getSelectedIndex()) {
-                        case 0:
-                            VersionPage.renameVersion(profile, id);
-                            break;
-                        case 1:
-                            VersionPage.deleteVersion(profile, id);
-                            break;
-                        case 2:
-                            VersionPage.exportVersion(profile, id);
-                            break;
-                        case 3:
-                            FXUtils.openFolder(repository.getRunDirectory(id));
-                            break;
-                        default:
-                            break;
-                    }
-                });
-                versionPopup.show(item, JFXPopup.PopupVPosition.TOP, JFXPopup.PopupHPosition.LEFT, event.getX(), event.getY());
-            } else if (event.getButton() == MouseButton.PRIMARY && event.getClickCount() == 2) {
-                if (Accounts.getSelectedAccount() == null)
-                    Controllers.dialog(i18n("login.empty_username"));
-                else
-                    LauncherHelper.INSTANCE.launch(profile, Accounts.getSelectedAccount(), id, null);
-            }
-        });
-        File iconFile = repository.getVersionIcon(id);
-        if (iconFile.exists())
-            item.setImage(new Image("file:" + iconFile.getAbsolutePath()));
-        return item;
-    }
-
-    private void loadingVersions() {
-        getChildren().setAll(spinner);
-        masonryPane.getChildren().clear();
-    }
-
-    private void loadVersions(HMCLGameRepository repository) {
-        List<Node> children = repository.getVersions().parallelStream()
-                .sorted((a, b) -> VersionNumber.COMPARATOR.compare(VersionNumber.asVersion(a.getId()), VersionNumber.asVersion(b.getId())))
-                .map(version -> buildNode(repository, version, () -> GameVersion.minecraftVersion(repository.getVersionJar(version.getId())).orElse("Unknown")))
-                .collect(Collectors.toList());
-        JFXUtilities.runInFX(() -> {
-            if (profile == repository.getProfile()) {
-                masonryPane.getChildren().setAll(children);
-                getChildren().setAll(contentPane);
-            }
-        });
-    }
-
-    public String getTitle() {
-        return title.get();
-    }
-
-    @Override
-    public StringProperty titleProperty() {
-        return title;
-    }
-
-    public void setTitle(String title) {
-        this.title.set(title);
-    }
-}
@@ -1,177 +0,0 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
- */
-package org.jackhuang.hmcl.ui;
-
-import com.jfoenix.concurrency.JFXUtilities;
-import com.jfoenix.controls.JFXSpinner;
-import com.jfoenix.controls.JFXTabPane;
-import javafx.fxml.FXML;
-import javafx.scene.control.ScrollPane;
-import javafx.scene.input.TransferMode;
-import javafx.scene.layout.StackPane;
-import javafx.scene.layout.VBox;
-import javafx.stage.FileChooser;
-
-import org.jackhuang.hmcl.mod.ModInfo;
-import org.jackhuang.hmcl.mod.ModManager;
-import org.jackhuang.hmcl.task.Schedulers;
-import org.jackhuang.hmcl.task.Task;
-import org.jackhuang.hmcl.util.FileUtils;
-import org.jackhuang.hmcl.util.Logging;
-import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
-
-import java.io.File;
-import java.io.IOException;
-import java.util.Arrays;
-import java.util.Collection;
-import java.util.LinkedList;
-import java.util.List;
-import java.util.logging.Level;
-import java.util.stream.Collectors;
-
-public final class ModController {
-    @FXML
-    private ScrollPane scrollPane;
-
-    @FXML private StackPane rootPane;
-
-    @FXML private VBox modPane;
-
-    @FXML private StackPane contentPane;
-    @FXML private JFXSpinner spinner;
-
-    private JFXTabPane parentTab;
-    private ModManager modManager;
-    private String versionId;
-
-    @FXML
-    private void initialize() {
-        FXUtils.smoothScrolling(scrollPane);
-
-        rootPane.setOnDragOver(event -> {
-            if (event.getGestureSource() != rootPane && event.getDragboard().hasFiles())
-                event.acceptTransferModes(TransferMode.COPY_OR_MOVE);
-            event.consume();
-        });
-
-        rootPane.setOnDragDropped(event -> {
-            List<File> files = event.getDragboard().getFiles();
-            if (files != null) {
-                Collection<File> mods = files.stream()
-                        .filter(it -> Arrays.asList("jar", "zip", "litemod").contains(FileUtils.getExtension(it)))
-                        .collect(Collectors.toList());
-                if (!mods.isEmpty()) {
-                    mods.forEach(it -> {
-                        try {
-                            modManager.addMod(versionId, it);
-                        } catch (IOException | IllegalArgumentException e) {
-                            Logging.LOG.log(Level.WARNING, "Unable to parse mod file " + it, e);
-                        }
-                    });
-                    loadMods(modManager, versionId);
-                    event.setDropCompleted(true);
-                }
-            }
-            event.consume();
-        });
-    }
-
-    public void loadMods(ModManager modManager, String versionId) {
-        this.modManager = modManager;
-        this.versionId = versionId;
-        Task.of(variables -> {
-            synchronized (ModController.this) {
-                JFXUtilities.runInFX(() -> {
-                    rootPane.getChildren().remove(contentPane);
-                    spinner.setVisible(true);
-                });
-
-                modManager.refreshMods(versionId);
-
-                // Surprisingly, if there are a great number of mods, this processing will cause a long UI pause,
-                // constructing UI elements.
-                // We must do this asynchronously.
-                LinkedList<ModItem> list = new LinkedList<>();
-                for (ModInfo modInfo : modManager.getMods(versionId)) {
-                    ModItem item = new ModItem(modInfo, i -> {
-                        modManager.removeMods(versionId, modInfo);
-                        loadMods(modManager, versionId);
-                    });
-                    modInfo.activeProperty().addListener((a, b, newValue) -> {
-                        if (newValue)
-                            item.getStyleClass().remove("disabled");
-                        else
-                            item.getStyleClass().add("disabled");
-                    });
-                    if (!modInfo.isActive())
-                        item.getStyleClass().add("disabled");
-
-                    list.add(item);
-                }
-
-                variables.set("list", list);
-            }
-        }).finalized(Schedulers.javafx(), (variables, isDependentsSucceeded) -> {
-            rootPane.getChildren().add(contentPane);
-            spinner.setVisible(false);
-            if (isDependentsSucceeded)
-                FXUtils.onWeakChangeAndOperate(parentTab.getSelectionModel().selectedItemProperty(), newValue -> {
-                    if (newValue != null && newValue.getUserData() == ModController.this)
-                        modPane.getChildren().setAll(variables.<List<ModItem>>get("list"));
-                });
-        }).start();
-    }
-
-    @FXML
-    private void onAdd() {
-        FileChooser chooser = new FileChooser();
-        chooser.setTitle(i18n("mods.choose_mod"));
-        chooser.getExtensionFilters().setAll(new FileChooser.ExtensionFilter(i18n("extension.mod"), "*.jar", "*.zip", "*.litemod"));
-        List<File> res = chooser.showOpenMultipleDialog(Controllers.getStage());
-
-        // It's guaranteed that succeeded and failed are thread safe here.
-        List<String> succeeded = new LinkedList<>();
-        List<String> failed = new LinkedList<>();
-        if (res == null) return;
-        Task.of(variables -> {
-            for (File file : res) {
-                try {
-                    modManager.addMod(versionId, file);
-                    succeeded.add(file.getName());
-                } catch (Exception e) {
-                    Logging.LOG.log(Level.WARNING, "Unable to add mod " + file, e);
-                    failed.add(file.getName());
-
-                    // Actually addMod will not throw exceptions because FileChooser has already filtered files.
-                }
-            }
-        }).with(Task.of(Schedulers.javafx(), variables -> {
-            List<String> prompt = new LinkedList<>();
-            if (!succeeded.isEmpty())
-                prompt.add(i18n("mods.add.success", String.join(", ", succeeded)));
-            if (!failed.isEmpty())
-                prompt.add(i18n("mods.add.failed", String.join(", ", failed)));
-            Controllers.dialog(String.join("\n", prompt), i18n("mods.add"));
-            loadMods(modManager, versionId);
-        })).start();
-    }
-
-    public void setParentTab(JFXTabPane parentTab) {
-        this.parentTab = parentTab;
-    }
-}
@@ -1,71 +0,0 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
- */
-package org.jackhuang.hmcl.ui;
-
-import com.jfoenix.concurrency.JFXUtilities;
-import com.jfoenix.controls.JFXButton;
-import com.jfoenix.controls.JFXCheckBox;
-import com.jfoenix.effects.JFXDepthManager;
-import javafx.geometry.Pos;
-import javafx.scene.layout.BorderPane;
-
-import org.jackhuang.hmcl.mod.ModInfo;
-import org.jackhuang.hmcl.setting.Theme;
-import org.jackhuang.hmcl.util.StringUtils;
-
-import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
-
-import java.util.function.Consumer;
-
-public final class ModItem extends BorderPane {
-
-    public ModItem(ModInfo info, Consumer<ModItem> deleteCallback) {
-        JFXCheckBox chkEnabled = new JFXCheckBox();
-        BorderPane.setAlignment(chkEnabled, Pos.CENTER);
-        setLeft(chkEnabled);
-
-        TwoLineListItem modItem = new TwoLineListItem();
-        BorderPane.setAlignment(modItem, Pos.CENTER);
-        setCenter(modItem);
-
-        JFXButton btnRemove = new JFXButton();
-        JFXUtilities.runInFX(() -> {
-            FXUtils.installTooltip(btnRemove, i18n("mods.remove"));
-        });
-        btnRemove.setOnMouseClicked(e -> deleteCallback.accept(this));
-        btnRemove.getStyleClass().add("toggle-icon4");
-        BorderPane.setAlignment(btnRemove, Pos.CENTER);
-        btnRemove.setGraphic(SVG.close(Theme.blackFillBinding(), 15, 15));
-        setRight(btnRemove);
-
-        setStyle("-fx-background-radius: 2; -fx-background-color: white; -fx-padding: 8;");
-        JFXDepthManager.setDepth(this, 1);
-        modItem.setTitle(info.getFileName());
-        StringBuilder message = new StringBuilder(info.getName());
-        if (StringUtils.isNotBlank(info.getVersion()))
-            message.append(", ").append(i18n("archive.version")).append(": ").append(info.getVersion());
-        if (StringUtils.isNotBlank(info.getGameVersion()))
-            message.append(", ").append(i18n("archive.game_version")).append(": ").append(info.getGameVersion());
-        if (StringUtils.isNotBlank(info.getAuthors()))
-            message.append(", ").append(i18n("archive.author")).append(": ").append(info.getAuthors());
-        modItem.setSubtitle(message.toString());
-        chkEnabled.setSelected(info.isActive());
-        chkEnabled.selectedProperty().addListener((a, b, newValue) ->
-                info.activeProperty().set(newValue));
-    }
-}
@@ -1,6 +1,6 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
@@ -13,13 +13,15 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl.ui;

 import javafx.beans.binding.ObjectBinding;
+import javafx.geometry.Pos;
 import javafx.scene.Group;
 import javafx.scene.Node;
+import javafx.scene.layout.StackPane;
 import javafx.scene.paint.Paint;
 import javafx.scene.shape.SVGPath;

@@ -27,14 +29,24 @@ public final class SVG {
    private SVG() {
    }

+    public interface SVGIcon {
+        Node createIcon(ObjectBinding<? extends Paint> fill, double width, double height);
+    }
+
    private static Node createSVGPath(String d, ObjectBinding<? extends Paint> fill, double width, double height) {
        SVGPath path = new SVGPath();
        path.getStyleClass().add("svg");
        path.setContent(d);
-        path.fillProperty().bind(fill);
+        if (fill != null) path.fillProperty().bind(fill);
+
+        if (width < 0 || height < 0) {
+            StackPane pane = new StackPane(path);
+            pane.setAlignment(Pos.CENTER);
+            return pane;
+        }

        Group svg = new Group(path);
-        double scale = Math.min(width / svg.getBoundsInParent().getWidth(), height / svg.getBoundsInParent().getHeight());
+        double scale = Math.min(width / 24, height / 24);
        svg.setScaleX(scale);
        svg.setScaleY(scale);

@@ -47,6 +59,10 @@ public final class SVG {
        return createSVGPath("M12,15.5A3.5,3.5 0 0,1 8.5,12A3.5,3.5 0 0,1 12,8.5A3.5,3.5 0 0,1 15.5,12A3.5,3.5 0 0,1 12,15.5M19.43,12.97C19.47,12.65 19.5,12.33 19.5,12C19.5,11.67 19.47,11.34 19.43,11L21.54,9.37C21.73,9.22 21.78,8.95 21.66,8.73L19.66,5.27C19.54,5.05 19.27,4.96 19.05,5.05L16.56,6.05C16.04,5.66 15.5,5.32 14.87,5.07L14.5,2.42C14.46,2.18 14.25,2 14,2H10C9.75,2 9.54,2.18 9.5,2.42L9.13,5.07C8.5,5.32 7.96,5.66 7.44,6.05L4.95,5.05C4.73,4.96 4.46,5.05 4.34,5.27L2.34,8.73C2.21,8.95 2.27,9.22 2.46,9.37L4.57,11C4.53,11.34 4.5,11.67 4.5,12C4.5,12.33 4.53,12.65 4.57,12.97L2.46,14.63C2.27,14.78 2.21,15.05 2.34,15.27L4.34,18.73C4.46,18.95 4.73,19.03 4.95,18.95L7.44,17.94C7.96,18.34 8.5,18.68 9.13,18.93L9.5,21.58C9.54,21.82 9.75,22 10,22H14C14.25,22 14.46,21.82 14.5,21.58L14.87,18.93C15.5,18.67 16.04,18.34 16.56,17.94L19.05,18.95C19.27,19.03 19.54,18.95 19.66,18.73L21.66,15.27C21.78,15.05 21.73,14.78 21.54,14.63L19.43,12.97Z", fill, width, height);
    }

+    public static Node gearOutline(ObjectBinding<? extends Paint> fill, double width, double height) {
+        return createSVGPath("M12,8A4,4 0 0,1 16,12A4,4 0 0,1 12,16A4,4 0 0,1 8,12A4,4 0 0,1 12,8M12,10A2,2 0 0,0 10,12A2,2 0 0,0 12,14A2,2 0 0,0 14,12A2,2 0 0,0 12,10M10,22C9.75,22 9.54,21.82 9.5,21.58L9.13,18.93C8.5,18.68 7.96,18.34 7.44,17.94L4.95,18.95C4.73,19.03 4.46,18.95 4.34,18.73L2.34,15.27C2.21,15.05 2.27,14.78 2.46,14.63L4.57,12.97L4.5,12L4.57,11L2.46,9.37C2.27,9.22 2.21,8.95 2.34,8.73L4.34,5.27C4.46,5.05 4.73,4.96 4.95,5.05L7.44,6.05C7.96,5.66 8.5,5.32 9.13,5.07L9.5,2.42C9.54,2.18 9.75,2 10,2H14C14.25,2 14.46,2.18 14.5,2.42L14.87,5.07C15.5,5.32 16.04,5.66 16.56,6.05L19.05,5.05C19.27,4.96 19.54,5.05 19.66,5.27L21.66,8.73C21.79,8.95 21.73,9.22 21.54,9.37L19.43,11L19.5,12L19.43,13L21.54,14.63C21.73,14.78 21.79,15.05 21.66,15.27L19.66,18.73C19.54,18.95 19.27,19.04 19.05,18.95L16.56,17.95C16.04,18.34 15.5,18.68 14.87,18.93L14.5,21.58C14.46,21.82 14.25,22 14,22H10M11.25,4L10.88,6.61C9.68,6.86 8.62,7.5 7.85,8.39L5.44,7.35L4.69,8.65L6.8,10.2C6.4,11.37 6.4,12.64 6.8,13.8L4.68,15.36L5.43,16.66L7.86,15.62C8.63,16.5 9.68,17.14 10.87,17.38L11.24,20H12.76L13.13,17.39C14.32,17.14 15.37,16.5 16.14,15.62L18.57,16.66L19.32,15.36L17.2,13.81C17.6,12.64 17.6,11.37 17.2,10.2L19.31,8.65L18.56,7.35L16.15,8.39C15.38,7.5 14.32,6.86 13.12,6.62L12.75,4H11.25Z", fill, width, height);
+    }
+
    public static Node back(ObjectBinding<? extends Paint> fill, double width, double height) {
        return createSVGPath("M20,11V13H8L13.5,18.5L12.08,19.92L4.16,12L12.08,4.08L13.5,5.5L8,11H20Z", fill, width, height);
    }
@@ -55,14 +71,26 @@ public final class SVG {
        return createSVGPath("M19,6.41L17.59,5L12,10.59L6.41,5L5,6.41L10.59,12L5,17.59L6.41,19L12,13.41L17.59,19L19,17.59L13.41,12L19,6.41Z", fill, width, height);
    }

+    public static Node copy(ObjectBinding<? extends Paint> fill, double width, double height) {
+        return createSVGPath("M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z", fill, width, height);
+    }
+
    public static Node dotsVertical(ObjectBinding<? extends Paint> fill, double width, double height) {
        return createSVGPath("M12,16A2,2 0 0,1 14,18A2,2 0 0,1 12,20A2,2 0 0,1 10,18A2,2 0 0,1 12,16M12,10A2,2 0 0,1 14,12A2,2 0 0,1 12,14A2,2 0 0,1 10,12A2,2 0 0,1 12,10M12,4A2,2 0 0,1 14,6A2,2 0 0,1 12,8A2,2 0 0,1 10,6A2,2 0 0,1 12,4Z", fill, width, height);
    }

+    public static Node dotsHorizontal(ObjectBinding<? extends Paint> fill, double width, double height) {
+        return createSVGPath("M16,12A2,2 0 0,1 18,10A2,2 0 0,1 20,12A2,2 0 0,1 18,14A2,2 0 0,1 16,12M10,12A2,2 0 0,1 12,10A2,2 0 0,1 14,12A2,2 0 0,1 12,14A2,2 0 0,1 10,12M4,12A2,2 0 0,1 6,10A2,2 0 0,1 8,12A2,2 0 0,1 6,14A2,2 0 0,1 4,12Z", fill, width, height);
+    }
+
    public static Node delete(ObjectBinding<? extends Paint> fill, double width, double height) {
        return createSVGPath("M19,4H15.5L14.5,3H9.5L8.5,4H5V6H19M6,19A2,2 0 0,0 8,21H16A2,2 0 0,0 18,19V7H6V19Z", fill, width, height);
    }

+    public static Node deleteOutline(ObjectBinding<? extends Paint> fill, double width, double height) {
+        return createSVGPath("M6,19A2,2 0 0,0 8,21H16A2,2 0 0,0 18,19V7H6V19M8,9H16V19H8V9M15.5,4L14.5,3H9.5L8.5,4H5V6H19V4H15.5Z", fill, width, height);
+    }
+
    public static Node accountEdit(ObjectBinding<? extends Paint> fill, double width, double height) {
        return createSVGPath("M21.7,13.35L20.7,14.35L18.65,12.3L19.65,11.3C19.86,11.09 20.21,11.09 20.42,11.3L21.7,12.58C21.91,12.79 21.91,13.14 21.7,13.35M12,18.94L18.06,12.88L20.11,14.93L14.06,21H12V18.94M12,14C7.58,14 4,15.79 4,18V20H10V18.11L14,14.11C13.34,14.03 12.67,14 12,14M12,4A4,4 0 0,0 8,8A4,4 0 0,0 12,12A4,4 0 0,0 16,8A4,4 0 0,0 12,4Z", fill, width, height);
    }
@@ -83,6 +111,10 @@ public final class SVG {
        return createSVGPath("M1008 6.286q18.857 13.714 15.429 36.571l-146.286 877.714q-2.857 16.571-18.286 25.714-8 4.571-17.714 4.571-6.286 0-13.714-2.857l-258.857-105.714-138.286 168.571q-10.286 13.143-28 13.143-7.429 0-12.571-2.286-10.857-4-17.429-13.429t-6.571-20.857v-199.429l493.714-605.143-610.857 528.571-225.714-92.571q-21.143-8-22.857-31.429-1.143-22.857 18.286-33.714l950.857-548.571q8.571-5.143 18.286-5.14311.429 0 20.571 6.286z", fill, width, height);
    }

+    public static Node launchOutline(ObjectBinding<? extends Paint> fill, double width, double height) {
+        return createSVGPath("M14,3V5H17.59L7.76,14.83L9.17,16.24L19,6.41V10H21V3M19,19H5V5H12V3H5C3.89,3 3,3.89 3,5V19A2,2 0 0,0 5,21H19A2,2 0 0,0 21,19V12H19V19Z", fill, width, height);
+    }
+
    public static Node script(ObjectBinding<? extends Paint> fill, double width, double height) {
        return createSVGPath("M14,20A2,2 0 0,0 16,18V5H9A1,1 0 0,0 8,6V16H5V5A3,3 0 0,1 8,2H19A3,3 0 0,1 22,5V6H18V18L18,19A3,3 0 0,1 15,22H5A3,3 0 0,1 2,19V18H12A2,2 0 0,0 14,20Z", fill, width, height);
    }
@@ -91,6 +123,10 @@ public final class SVG {
        return createSVGPath("M20.71,4.04C21.1,3.65 21.1,3 20.71,2.63L18.37,0.29C18,-0.1 17.35,-0.1 16.96,0.29L15,2.25L18.75,6M17.75,7L14,3.25L4,13.25V17H7.75L17.75,7Z", fill, width, height);
    }

+    public static Node pencilOutline(ObjectBinding<? extends Paint> fill, double width, double height) {
+        return createSVGPath("M14.06,9L15,9.94L5.92,19H5V18.08L14.06,9M17.66,3C17.41,3 17.15,3.1 16.96,3.29L15.13,5.12L18.88,8.87L20.71,7.04C21.1,6.65 21.1,6 20.71,5.63L18.37,3.29C18.17,3.09 17.92,3 17.66,3M14.06,6.19L3,17.25V21H6.75L17.81,9.94L14.06,6.19Z", fill, width, height);
+    }
+
    public static Node refresh(ObjectBinding<? extends Paint> fill, double width, double height) {
        return createSVGPath("M17.65,6.35C16.2,4.9 14.21,4 12,4A8,8 0 0,0 4,12A8,8 0 0,0 12,20C15.73,20 18.84,17.45 19.73,14H17.65C16.83,16.33 14.61,18 12,18A6,6 0 0,1 6,12A6,6 0 0,1 12,6C13.66,6 15.14,6.69 16.22,7.78L13,11H20V4L17.65,6.35Z", fill, width, height);
    }
@@ -99,6 +135,10 @@ public final class SVG {
        return createSVGPath("M19,20H4C2.89,20 2,19.1 2,18V6C2,4.89 2.89,4 4,4H10L12,6H19A2,2 0 0,1 21,8H21L4,8V18L6.14,10H23.21L20.93,18.5C20.7,19.37 19.92,20 19,20Z", fill, width, height);
    }

+    public static Node folderOutline(ObjectBinding<? extends Paint> fill, double width, double height) {
+        return createSVGPath("M20,18H4V8H20M20,6H12L10,4H4C2.89,4 2,4.89 2,6V18A2,2 0 0,0 4,20H20A2,2 0 0,0 22,18V8C22,6.89 21.1,6 20,6Z", fill, width, height);
+    }
+
    public static Node update(ObjectBinding<? extends Paint> fill, double width, double height) {
        return createSVGPath("M21,10.12H14.22L16.96,7.3C14.23,4.6 9.81,4.5 7.08,7.2C4.35,9.91 4.35,14.28 7.08,17C9.81,19.7 14.23,19.7 16.96,17C18.32,15.65 19,14.08 19,12.1H21C21,14.08 20.12,16.65 18.36,18.39C14.85,21.87 9.15,21.87 5.64,18.39C2.14,14.92 2.11,9.28 5.62,5.81C9.13,2.34 14.76,2.34 18.27,5.81L21,3V10.12M12.5,8V12.25L16,14.33L15.28,15.54L11,13V8H12.5Z", fill, width, height);
    }
@@ -127,4 +167,95 @@ public final class SVG {
        return createSVGPath("M19,13H13V19H11V13H5V11H11V5H13V11H19V13Z", fill, width, height);
    }

+    public static Node plusCircleOutline(ObjectBinding<? extends Paint> fill, double width, double height) {
+        return createSVGPath("M12,20C7.59,20 4,16.41 4,12C4,7.59 7.59,4 12,4C16.41,4 20,7.59 20,12C20,16.41 16.41,20 12,20M12,2A10,10 0 0,0 2,12A10,10 0 0,0 12,22A10,10 0 0,0 22,12A10,10 0 0,0 12,2M13,7H11V11H7V13H11V17H13V13H17V11H13V7Z", fill, width, height);
+    }
+
+    public static Node importIcon(ObjectBinding<? extends Paint> fill, double width, double height) {
+        return createSVGPath("M14,12L10,8V11H2V13H10V16M20,18V6C20,4.89 19.1,4 18,4H6A2,2 0 0,0 4,6V9H6V6H18V18H6V15H4V18A2,2 0 0,0 6,20H18A2,2 0 0,0 20,18Z", fill, width, height);
+    }
+
+    public static Node export(ObjectBinding<? extends Paint> fill, double width, double height) {
+        return createSVGPath("M23,12L19,8V11H10V13H19V16M1,18V6C1,4.89 1.9,4 3,4H15A2,2 0 0,1 17,6V9H15V6H3V18H15V15H17V18A2,2 0 0,1 15,20H3A2,2 0 0,1 1,18Z", fill, width, height);
+    }
+
+    public static Node openInNew(ObjectBinding<? extends Paint> fill, double width, double height) {
+        return createSVGPath("M14,3V5H17.59L7.76,14.83L9.17,16.24L19,6.41V10H21V3M19,19H5V5H12V3H5C3.89,3 3,3.9 3,5V19A2,2 0 0,0 5,21H19A2,2 0 0,0 21,19V12H19V19Z", fill, width, height);
+    }
+
+    public static Node triangle(ObjectBinding<? extends Paint> fill, double width, double height) {
+        return createSVGPath("M1,21H23L12,2", fill, width, height);
+    }
+
+    public static Node home(ObjectBinding<? extends Paint> fill, double width, double height) {
+        return createSVGPath("M10,20V14H14V20H19V12H22L12,3L2,12H5V20H10Z", fill, width, height);
+    }
+
+    public static Node viewList(ObjectBinding<? extends Paint> fill, double width, double height) {
+        return createSVGPath("M7,5H21V7H7V5M7,13V11H21V13H7M4,4.5A1.5,1.5 0 0,1 5.5,6A1.5,1.5 0 0,1 4,7.5A1.5,1.5 0 0,1 2.5,6A1.5,1.5 0 0,1 4,4.5M4,10.5A1.5,1.5 0 0,1 5.5,12A1.5,1.5 0 0,1 4,13.5A1.5,1.5 0 0,1 2.5,12A1.5,1.5 0 0,1 4,10.5M7,19V17H21V19H7M4,16.5A1.5,1.5 0 0,1 5.5,18A1.5,1.5 0 0,1 4,19.5A1.5,1.5 0 0,1 2.5,18A1.5,1.5 0 0,1 4,16.5Z", fill, width, height);
+    }
+
+    public static Node check(ObjectBinding<? extends Paint> fill, double width, double height) {
+        return createSVGPath("M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z", fill, width, height);
+    }
+
+    public static Node arrowRight(ObjectBinding<? extends Paint> fill, double width, double height) {
+        return createSVGPath("M4,11V13H16L10.5,18.5L11.92,19.92L19.84,12L11.92,4.08L10.5,5.5L16,11H4Z", fill, width, height);
+    }
+
+    public static Node wrench(ObjectBinding<? extends Paint> fill, double width, double height) {
+        return createSVGPath("M22.7,19L13.6,9.9C14.5,7.6 14,4.9 12.1,3C10.1,1 7.1,0.6 4.7,1.7L9,6L6,9L1.6,4.7C0.4,7.1 0.9,10.1 2.9,12.1C4.8,14 7.5,14.5 9.8,13.6L18.9,22.7C19.3,23.1 19.9,23.1 20.3,22.7L22.6,20.4C23.1,20 23.1,19.3 22.7,19Z", fill, width, height);
+    }
+
+    public static Node wrenchOutline(ObjectBinding<? extends Paint> fill, double width, double height) {
+        return createSVGPath("M22.61,19L13.53,9.91C14.46,7.57 14,4.81 12.09,2.91C9.79,0.61 6.21,0.4 3.66,2.26L7.5,6.11L6.08,7.5L2.25,3.69C0.39,6.23 0.6,9.82 2.9,12.11C4.76,13.97 7.47,14.46 9.79,13.59L18.9,22.7C19.29,23.09 19.92,23.09 20.31,22.7L22.61,20.4C23,20 23,19.39 22.61,19M19.61,20.59L10.15,11.13C9.54,11.58 8.86,11.85 8.15,11.95C6.79,12.15 5.36,11.74 4.32,10.7C3.37,9.76 2.93,8.5 3,7.26L6.09,10.35L10.33,6.11L7.24,3C8.5,2.95 9.73,3.39 10.68,4.33C11.76,5.41 12.17,6.9 11.92,8.29C11.8,9 11.5,9.66 11.04,10.25L20.5,19.7L19.61,20.59Z", fill, width, height);
+    }
+
+    public static Node upload(ObjectBinding<? extends Paint> fill, double width, double height) {
+        return createSVGPath("M9,16V10H5L12,3L19,10H15V16H9M5,20V18H19V20H5Z", fill, width, height);
+    }
+
+    public static Node hanger(ObjectBinding<? extends Paint> fill, double width, double height) {
+        return createSVGPath("M12 4A3.5 3.5 0 0 0 8.5 7.5H10.5A1.5 1.5 0 0 1 12 6A1.5 1.5 0 0 1 13.5 7.5A1.5 1.5 0 0 1 12 9C11.45 9 11 9.45 11 10V11.75L2.4 18.2A1 1 0 0 0 3 20H21A1 1 0 0 0 21.6 18.2L13 11.75V10.85A3.5 3.5 0 0 0 15.5 7.5A3.5 3.5 0 0 0 12 4M12 13.5L18 18H6Z", fill, width, height);
+    }
+
+    public static Node puzzle(ObjectBinding<? extends Paint> fill, double width, double height) {
+        return createSVGPath("M22,13.5C22,15.26 20.7,16.72 19,16.96V20A2,2 0 0,1 17,22H13.2V21.7A2.7,2.7 0 0,0 10.5,19C9,19 7.8,20.21 7.8,21.7V22H4A2,2 0 0,1 2,20V16.2H2.3C3.79,16.2 5,15 5,13.5C5,12 3.79,10.8 2.3,10.8H2V7A2,2 0 0,1 4,5H7.04C7.28,3.3 8.74,2 10.5,2C12.26,2 13.72,3.3 13.96,5H17A2,2 0 0,1 19,7V10.04C20.7,10.28 22,11.74 22,13.5M17,15H18.5A1.5,1.5 0 0,0 20,13.5A1.5,1.5 0 0,0 18.5,12H17V7H12V5.5A1.5,1.5 0 0,0 10.5,4A1.5,1.5 0 0,0 9,5.5V7H4V9.12C5.76,9.8 7,11.5 7,13.5C7,15.5 5.75,17.2 4,17.88V20H6.12C6.8,18.25 8.5,17 10.5,17C12.5,17 14.2,18.25 14.88,20H17V15Z", fill, width, height);
+    }
+
+    public static Node cube(ObjectBinding<? extends Paint> fill, double width, double height) {
+        return createSVGPath("M21,16.5C21,16.88 20.79,17.21 20.47,17.38L12.57,21.82C12.41,21.94 12.21,22 12,22C11.79,22 11.59,21.94 11.43,21.82L3.53,17.38C3.21,17.21 3,16.88 3,16.5V7.5C3,7.12 3.21,6.79 3.53,6.62L11.43,2.18C11.59,2.06 11.79,2 12,2C12.21,2 12.41,2.06 12.57,2.18L20.47,6.62C20.79,6.79 21,7.12 21,7.5V16.5M12,4.15L6.04,7.5L12,10.85L17.96,7.5L12,4.15M5,15.91L11,19.29V12.58L5,9.21V15.91M19,15.91V9.21L13,12.58V19.29L19,15.91Z", fill, width, height);
+    }
+
+    public static Node pack(ObjectBinding<? extends Paint> fill, double width, double height) {
+        return createSVGPath("M21,16.5C21,16.88 20.79,17.21 20.47,17.38L12.57,21.82C12.41,21.94 12.21,22 12,22C11.79,22 11.59,21.94 11.43,21.82L3.53,17.38C3.21,17.21 3,16.88 3,16.5V7.5C3,7.12 3.21,6.79 3.53,6.62L11.43,2.18C11.59,2.06 11.79,2 12,2C12.21,2 12.41,2.06 12.57,2.18L20.47,6.62C20.79,6.79 21,7.12 21,7.5V16.5M12,4.15L10.11,5.22L16,8.61L17.96,7.5L12,4.15M6.04,7.5L12,10.85L13.96,9.75L8.08,6.35L6.04,7.5M5,15.91L11,19.29V12.58L5,9.21V15.91M19,15.91V9.21L13,12.58V19.29L19,15.91Z", fill, width, height);
+    }
+
+    public static Node gamepad(ObjectBinding<? extends Paint> fill, double width, double height) {
+        return createSVGPath("M6,9H8V11H10V13H8V15H6V13H4V11H6V9M18.5,9A1.5,1.5 0 0,1 20,10.5A1.5,1.5 0 0,1 18.5,12A1.5,1.5 0 0,1 17,10.5A1.5,1.5 0 0,1 18.5,9M15.5,12A1.5,1.5 0 0,1 17,13.5A1.5,1.5 0 0,1 15.5,15A1.5,1.5 0 0,1 14,13.5A1.5,1.5 0 0,1 15.5,12M17,5A7,7 0 0,1 24,12A7,7 0 0,1 17,19C15.04,19 13.27,18.2 12,16.9C10.73,18.2 8.96,19 7,19A7,7 0 0,1 0,12A7,7 0 0,1 7,5H17M7,7A5,5 0 0,0 2,12A5,5 0 0,0 7,17C8.64,17 10.09,16.21 11,15H13C13.91,16.21 15.36,17 17,17A5,5 0 0,0 22,12A5,5 0 0,0 17,7H7Z", fill, width, height);
+    }
+
+    public static Node fire(ObjectBinding<? extends Paint> fill, double width, double height) {
+        return createSVGPath("M17.66 11.2C17.43 10.9 17.15 10.64 16.89 10.38C16.22 9.78 15.46 9.35 14.82 8.72C13.33 7.26 13 4.85 13.95 3C13 3.23 12.17 3.75 11.46 4.32C8.87 6.4 7.85 10.07 9.07 13.22C9.11 13.32 9.15 13.42 9.15 13.55C9.15 13.77 9 13.97 8.8 14.05C8.57 14.15 8.33 14.09 8.14 13.93C8.08 13.88 8.04 13.83 8 13.76C6.87 12.33 6.69 10.28 7.45 8.64C5.78 10 4.87 12.3 5 14.47C5.06 14.97 5.12 15.47 5.29 15.97C5.43 16.57 5.7 17.17 6 17.7C7.08 19.43 8.95 20.67 10.96 20.92C13.1 21.19 15.39 20.8 17.03 19.32C18.86 17.66 19.5 15 18.56 12.72L18.43 12.46C18.22 12 17.66 11.2 17.66 11.2M14.5 17.5C14.22 17.74 13.76 18 13.4 18.1C12.28 18.5 11.16 17.94 10.5 17.28C11.69 17 12.4 16.12 12.61 15.23C12.78 14.43 12.46 13.77 12.33 13C12.21 12.26 12.23 11.63 12.5 10.94C12.69 11.32 12.89 11.7 13.13 12C13.9 13 15.11 13.44 15.37 14.8C15.41 14.94 15.43 15.08 15.43 15.23C15.46 16.05 15.1 16.95 14.5 17.5H14.5Z", fill, width, height);
+    }
+
+    public static Node monitorScreenshot(ObjectBinding<? extends Paint> fill, double width, double height) {
+        return createSVGPath("M9,6H5V10H7V8H9M19,10H17V12H15V14H19M21,16H3V4H21M21,2H3C1.89,2 1,2.89 1,4V16A2,2 0 0,0 3,18H10V20H8V22H16V20H14V18H21A2,2 0 0,0 23,16V4C23,2.89 22.1,2 21,2", fill, width, height);
+    }
+
+    public static Node texture(ObjectBinding<? extends Paint> fill, double width, double height) {
+        return createSVGPath("M9.29,21H12.12L21,12.12V9.29M19,21C19.55,21 20.05,20.78 20.41,20.41C20.78,20.05 21,19.55 21,19V17L17,21M5,3A2,2 0 0,0 3,5V7L7,3M11.88,3L3,11.88V14.71L14.71,3M19.5,3.08L3.08,19.5C3.17,19.85 3.35,20.16 3.59,20.41C3.84,20.65 4.15,20.83 4.5,20.92L20.93,4.5C20.74,3.8 20.2,3.26 19.5,3.08Z", fill, width, height);
+    }
+
+    public static Node alphaCircleOutline(ObjectBinding<? extends Paint> fill, double width, double height) {
+        return createSVGPath("M11,7H13A2,2 0 0,1 15,9V17H13V13H11V17H9V9A2,2 0 0,1 11,7M11,9V11H13V9H11M12,20A8,8 0 0,0 20,12A8,8 0 0,0 12,4A8,8 0 0,0 4,12A8,8 0 0,0 12,20M12,2A10,10 0 0,1 22,12A10,10 0 0,1 12,22A10,10 0 0,1 2,12A10,10 0 0,1 12,2Z", fill, width, height);
+    }
+
+    public static Node betaCircleOutline(ObjectBinding<? extends Paint> fill, double width, double height) {
+        return createSVGPath("M15,10.5C15,11.3 14.3,12 13.5,12C14.3,12 15,12.7 15,13.5V15A2,2 0 0,1 13,17H9V7H13A2,2 0 0,1 15,9V10.5M13,15V13H11V15H13M13,11V9H11V11H13M12,2A10,10 0 0,1 22,12A10,10 0 0,1 12,22A10,10 0 0,1 2,12A10,10 0 0,1 12,2M12,4A8,8 0 0,0 4,12A8,8 0 0,0 12,20A8,8 0 0,0 20,12A8,8 0 0,0 12,4Z", fill, width, height);
+    }
+
+    public static Node releaseCircleOutline(ObjectBinding<? extends Paint> fill, double width, double height) {
+        return createSVGPath("M9,7H13A2,2 0 0,1 15,9V11C15,11.84 14.5,12.55 13.76,12.85L15,17H13L11.8,13H11V17H9V7M11,9V11H13V9H11M12,2A10,10 0 0,1 22,12A10,10 0 0,1 12,22A10,10 0 0,1 2,12A10,10 0 0,1 12,2M12,4A8,8 0 0,0 4,12C4,16.41 7.58,20 12,20A8,8 0 0,0 20,12A8,8 0 0,0 12,4Z", fill, width, height);
+    }
 }
@@ -1,43 +0,0 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
- */
-package org.jackhuang.hmcl.ui;
-
-import javafx.util.StringConverter;
-import org.jackhuang.hmcl.util.Lang;
-
-import java.util.Optional;
-
-/**
- * @author huangyuhui
- */
-public final class SafeIntStringConverter extends StringConverter<Number> {
-    public static final SafeIntStringConverter INSTANCE = new SafeIntStringConverter();
-
-    private SafeIntStringConverter() {
-    }
-
-    @Override
-    public Number fromString(String string) {
-        return Optional.ofNullable(string).map(Lang::toIntOrNull).orElse(null);
-    }
-
-    @Override
-    public String toString(Number object) {
-        return Optional.ofNullable(object).map(Object::toString).orElse("");
-    }
-}
@@ -1,317 +0,0 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
- */
-package org.jackhuang.hmcl.ui;
-
-import com.jfoenix.controls.*;
-import com.jfoenix.effects.JFXDepthManager;
-import javafx.application.Platform;
-import javafx.beans.InvalidationListener;
-import javafx.beans.WeakInvalidationListener;
-import javafx.beans.binding.Bindings;
-import javafx.beans.binding.When;
-import javafx.beans.property.ObjectProperty;
-import javafx.beans.property.SimpleObjectProperty;
-import javafx.beans.property.SimpleStringProperty;
-import javafx.beans.property.StringProperty;
-import javafx.collections.FXCollections;
-import javafx.collections.ObservableList;
-import javafx.fxml.FXML;
-import javafx.scene.control.Label;
-import javafx.scene.control.ScrollPane;
-import javafx.scene.control.ToggleGroup;
-import javafx.scene.layout.GridPane;
-import javafx.scene.layout.Pane;
-import javafx.scene.layout.StackPane;
-import javafx.scene.paint.Color;
-import javafx.scene.text.Font;
-import javafx.scene.text.Text;
-import org.jackhuang.hmcl.setting.*;
-import org.jackhuang.hmcl.task.Task;
-import org.jackhuang.hmcl.ui.construct.FontComboBox;
-import org.jackhuang.hmcl.ui.construct.MultiFileItem;
-import org.jackhuang.hmcl.ui.construct.Validator;
-import org.jackhuang.hmcl.ui.wizard.DecoratorPage;
-import org.jackhuang.hmcl.upgrade.UpdateChannel;
-import org.jackhuang.hmcl.upgrade.RemoteVersion;
-import org.jackhuang.hmcl.upgrade.UpdateChecker;
-import org.jackhuang.hmcl.upgrade.UpdateHandler;
-import org.jackhuang.hmcl.util.Lang;
-import org.jackhuang.hmcl.util.i18n.Locales;
-
-import static org.jackhuang.hmcl.setting.ConfigHolder.config;
-import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
-
-import java.net.Proxy;
-import java.util.Arrays;
-import java.util.Collections;
-import java.util.Objects;
-import java.util.Optional;
-
-public final class SettingsPage extends StackPane implements DecoratorPage {
-    private final StringProperty title = new SimpleStringProperty(this, "title", i18n("settings.launcher"));
-
-    @FXML
-    private JFXTextField txtProxyHost;
-    @FXML
-    private JFXTextField txtProxyPort;
-    @FXML
-    private JFXTextField txtProxyUsername;
-    @FXML
-    private JFXPasswordField txtProxyPassword;
-    @FXML
-    private JFXTextField txtFontSize;
-    @FXML
-    private JFXComboBox<Label> cboLanguage;
-    @FXML
-    private JFXComboBox<?> cboDownloadSource;
-    @FXML
-    private FontComboBox cboFont;
-    @FXML
-    private MultiFileItem<EnumCommonDirectory> fileCommonLocation;
-    @FXML
-    private Label lblDisplay;
-    @FXML
-    private Label lblUpdate;
-    @FXML
-    private Label lblUpdateSub;
-    @FXML
-    private Text lblUpdateNote;
-    @FXML
-    private JFXRadioButton chkUpdateStable;
-    @FXML
-    private JFXRadioButton chkUpdateDev;
-    @FXML
-    private JFXButton btnUpdate;
-    @FXML
-    private ScrollPane scroll;
-    @FXML
-    private MultiFileItem<EnumBackgroundImage> backgroundItem;
-    @FXML
-    private StackPane themeColorPickerContainer;
-    @FXML
-    private JFXCheckBox chkDisableProxy;
-    @FXML
-    private JFXRadioButton chkProxyHttp;
-    @FXML
-    private JFXRadioButton chkProxySocks;
-    @FXML
-    private JFXCheckBox chkProxyAuthentication;
-    @FXML
-    private GridPane authPane;
-    @FXML
-    private Pane proxyPane;
-
-    private ObjectProperty<Proxy.Type> selectedProxyType;
-
-    private InvalidationListener updateListener;
-
-    public SettingsPage() {
-        FXUtils.loadFXML(this, "/assets/fxml/setting.fxml");
-
-        FXUtils.smoothScrolling(scroll);
-
-        cboDownloadSource.getSelectionModel().select(DownloadProviders.DOWNLOAD_PROVIDERS.indexOf(Settings.instance().getDownloadProvider()));
-        cboDownloadSource.getSelectionModel().selectedIndexProperty().addListener((a, b, newValue) -> Settings.instance().setDownloadProvider(DownloadProviders.getDownloadProvider(newValue.intValue())));
-
-        cboFont.getSelectionModel().select(Settings.instance().getFont().getFamily());
-        cboFont.valueProperty().addListener((a, b, newValue) -> {
-            Font font = Font.font(newValue, Settings.instance().getFont().getSize());
-            Settings.instance().setFont(font);
-            lblDisplay.setStyle("-fx-font: " + font.getSize() + " \"" + font.getFamily() + "\";");
-        });
-
-        txtFontSize.setText(Double.toString(Settings.instance().getFont().getSize()));
-        txtFontSize.getValidators().add(new Validator(it -> Lang.toDoubleOrNull(it) != null));
-        txtFontSize.textProperty().addListener((a, b, newValue) -> {
-            if (txtFontSize.validate()) {
-                Font font = Font.font(Settings.instance().getFont().getFamily(), Double.parseDouble(newValue));
-                Settings.instance().setFont(font);
-                lblDisplay.setStyle("-fx-font: " + font.getSize() + " \"" + font.getFamily() + "\";");
-            }
-        });
-
-        lblDisplay.setStyle("-fx-font: " + Settings.instance().getFont().getSize() + " \"" + Settings.instance().getFont().getFamily() + "\";");
-
-        ObservableList<Label> list = FXCollections.observableArrayList();
-        for (Locales.SupportedLocale locale : Locales.LOCALES)
-            list.add(new Label(locale.getName(config().getLocalization().getResourceBundle())));
-
-        cboLanguage.setItems(list);
-        cboLanguage.getSelectionModel().select(Locales.LOCALES.indexOf(config().getLocalization()));
-        cboLanguage.getSelectionModel().selectedIndexProperty().addListener((a, b, newValue) -> config().setLocalization(Locales.getLocale(newValue.intValue())));
-
-        // ==== Proxy ====
-        txtProxyHost.textProperty().bindBidirectional(config().proxyHostProperty());
-        txtProxyPort.textProperty().bindBidirectional(config().proxyPortProperty());
-        txtProxyUsername.textProperty().bindBidirectional(config().proxyUserProperty());
-        txtProxyPassword.textProperty().bindBidirectional(config().proxyPassProperty());
-
-        proxyPane.disableProperty().bind(chkDisableProxy.selectedProperty());
-        authPane.disableProperty().bind(chkProxyAuthentication.selectedProperty().not());
-
-        chkDisableProxy.setSelected(!config().hasProxy());
-        chkDisableProxy.selectedProperty().addListener(o -> config().setHasProxy(!chkDisableProxy.isSelected()));
-        config().hasProxyProperty().addListener(o -> chkDisableProxy.setSelected(!config().hasProxy()));
-        chkProxyAuthentication.selectedProperty().bindBidirectional(config().hasProxyAuthProperty());
-
-        selectedProxyType = new SimpleObjectProperty<Proxy.Type>(Proxy.Type.HTTP) {
-            {
-                invalidated();
-            }
-
-            @Override
-            protected void invalidated() {
-                Proxy.Type type = Objects.requireNonNull(get());
-                if (type == Proxy.Type.DIRECT) {
-                    set(Proxy.Type.HTTP); // HTTP by default
-                } else {
-                    chkProxyHttp.setSelected(type == Proxy.Type.HTTP);
-                    chkProxySocks.setSelected(type == Proxy.Type.SOCKS);
-                }
-            }
-        };
-        selectedProxyType.bindBidirectional(config().proxyTypeProperty());
-
-        ToggleGroup proxyConfigurationGroup = new ToggleGroup();
-        chkProxyHttp.setUserData(Proxy.Type.HTTP);
-        chkProxyHttp.setToggleGroup(proxyConfigurationGroup);
-        chkProxySocks.setUserData(Proxy.Type.SOCKS);
-        chkProxySocks.setToggleGroup(proxyConfigurationGroup);
-        proxyConfigurationGroup.getToggles().forEach(
-                toggle -> toggle.selectedProperty().addListener((observable, oldValue, newValue) -> {
-                    if (newValue) {
-                        selectedProxyType.set((Proxy.Type) toggle.getUserData());
-                    }
-                }));
-        // ====
-
-        fileCommonLocation.loadChildren(Arrays.asList(
-                fileCommonLocation.createChildren(i18n("launcher.common_directory.disabled"), EnumCommonDirectory.DISABLED),
-                fileCommonLocation.createChildren(i18n("launcher.common_directory.default"), EnumCommonDirectory.DEFAULT)
-        ), EnumCommonDirectory.CUSTOM);
-        fileCommonLocation.selectedDataProperty().bindBidirectional(config().commonDirTypeProperty());
-        fileCommonLocation.customTextProperty().bindBidirectional(config().commonDirectoryProperty());
-        fileCommonLocation.subtitleProperty().bind(
-                Bindings.createObjectBinding(() -> Optional.ofNullable(Settings.instance().getCommonDirectory())
-                                .orElse(i18n("launcher.common_directory.disabled")),
-                        config().commonDirectoryProperty(), config().commonDirTypeProperty()));
-
-        // ==== Update ====
-        FXUtils.installTooltip(btnUpdate, i18n("update.tooltip"));
-        updateListener = any -> {
-            btnUpdate.setVisible(UpdateChecker.isOutdated());
-
-            if (UpdateChecker.isOutdated()) {
-                lblUpdateSub.setText(i18n("update.newest_version", UpdateChecker.getLatestVersion().getVersion()));
-                lblUpdateSub.getStyleClass().setAll("update-label");
-
-                lblUpdate.setText(i18n("update.found"));
-                lblUpdate.getStyleClass().setAll("update-label");
-            } else if (UpdateChecker.isCheckingUpdate()) {
-                lblUpdateSub.setText(i18n("update.checking"));
-                lblUpdateSub.getStyleClass().setAll("subtitle-label");
-
-                lblUpdate.setText(i18n("update"));
-                lblUpdate.getStyleClass().setAll();
-            } else {
-                lblUpdateSub.setText(i18n("update.latest"));
-                lblUpdateSub.getStyleClass().setAll("subtitle-label");
-
-                lblUpdate.setText(i18n("update"));
-                lblUpdate.getStyleClass().setAll();
-            }
-        };
-        UpdateChecker.latestVersionProperty().addListener(new WeakInvalidationListener(updateListener));
-        UpdateChecker.outdatedProperty().addListener(new WeakInvalidationListener(updateListener));
-        UpdateChecker.checkingUpdateProperty().addListener(new WeakInvalidationListener(updateListener));
-        updateListener.invalidated(null);
-
-        lblUpdateNote.setWrappingWidth(470);
-
-        ObjectProperty<UpdateChannel> updateChannel = new SimpleObjectProperty<UpdateChannel>() {
-            @Override
-            protected void invalidated() {
-                UpdateChannel updateChannel = Objects.requireNonNull(get());
-                chkUpdateDev.setSelected(updateChannel == UpdateChannel.DEVELOPMENT);
-                chkUpdateStable.setSelected(updateChannel == UpdateChannel.STABLE);
-            }
-        };
-
-        ToggleGroup updateChannelGroup = new ToggleGroup();
-        chkUpdateDev.setToggleGroup(updateChannelGroup);
-        chkUpdateDev.setUserData(UpdateChannel.DEVELOPMENT);
-        chkUpdateStable.setToggleGroup(updateChannelGroup);
-        chkUpdateStable.setUserData(UpdateChannel.STABLE);
-        updateChannelGroup.getToggles().forEach(
-                toggle -> toggle.selectedProperty().addListener((observable, oldValue, newValue) -> {
-                    if (newValue) {
-                        updateChannel.set((UpdateChannel) toggle.getUserData());
-                    }
-                }));
-        updateChannel.bindBidirectional(ConfigHolder.config().updateChannelProperty());
-        // ====
-
-        // ==== Background ====
-        backgroundItem.loadChildren(Collections.singletonList(
-                backgroundItem.createChildren(i18n("launcher.background.default"), EnumBackgroundImage.DEFAULT)
-        ), EnumBackgroundImage.CUSTOM);
-        backgroundItem.customTextProperty().bindBidirectional(config().backgroundImageProperty());
-        backgroundItem.selectedDataProperty().bindBidirectional(config().backgroundImageTypeProperty());
-        backgroundItem.subtitleProperty().bind(
-                new When(backgroundItem.selectedDataProperty().isEqualTo(EnumBackgroundImage.DEFAULT))
-                        .then(i18n("launcher.background.default"))
-                        .otherwise(config().backgroundImageProperty()));
-        // ====
-
-        // ==== Theme ====
-        JFXColorPicker picker = new JFXColorPicker(Color.web(config().getTheme().getColor()), null);
-        picker.setCustomColorText(i18n("color.custom"));
-        picker.setRecentColorsText(i18n("color.recent"));
-        picker.getCustomColors().setAll(Theme.SUGGESTED_COLORS);
-        picker.setOnAction(e -> {
-            Theme theme = Theme.custom(Theme.getColorDisplayName(picker.getValue()));
-            config().setTheme(theme);
-            Controllers.getScene().getStylesheets().setAll(theme.getStylesheets());
-        });
-        themeColorPickerContainer.getChildren().setAll(picker);
-        Platform.runLater(() -> JFXDepthManager.setDepth(picker, 0));
-        // ====
-    }
-
-    public String getTitle() {
-        return title.get();
-    }
-
-    @Override
-    public StringProperty titleProperty() {
-        return title;
-    }
-
-    public void setTitle(String title) {
-        this.title.set(title);
-    }
-
-    @FXML
-    private void onUpdate() {
-        RemoteVersion target = UpdateChecker.getLatestVersion();
-        if (target == null) {
-            return;
-        }
-        UpdateHandler.updateFrom(target);
-    }
-}
@@ -0,0 +1,113 @@
+/*
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package org.jackhuang.hmcl.ui;
+
+import com.jfoenix.controls.JFXButton;
+import com.jfoenix.controls.JFXScrollPane;
+import com.jfoenix.effects.JFXDepthManager;
+import javafx.beans.binding.Bindings;
+import javafx.geometry.Insets;
+import javafx.scene.Node;
+import javafx.scene.control.ScrollPane;
+import javafx.scene.control.SkinBase;
+import javafx.scene.layout.BorderPane;
+import javafx.scene.layout.HBox;
+import javafx.scene.layout.StackPane;
+import javafx.scene.layout.VBox;
+import org.jackhuang.hmcl.setting.Theme;
+import org.jackhuang.hmcl.ui.construct.SpinnerPane;
+
+import java.util.List;
+
+public abstract class ToolbarListPageSkin<T extends ListPageBase<? extends Node>> extends SkinBase<T> {
+
+    public ToolbarListPageSkin(T skinnable) {
+        super(skinnable);
+
+        SpinnerPane spinnerPane = new SpinnerPane();
+        spinnerPane.getStyleClass().add("large-spinner-pane");
+
+        BorderPane root = new BorderPane();
+
+        List<Node> toolbarButtons = initializeToolbar(skinnable);
+        if (!toolbarButtons.isEmpty()) {
+            HBox toolbar = new HBox();
+            toolbar.getStyleClass().add("jfx-tool-bar-second");
+            JFXDepthManager.setDepth(toolbar, 1);
+            toolbar.setPickOnBounds(false);
+            toolbar.getChildren().setAll(toolbarButtons);
+            root.setTop(toolbar);
+        }
+
+        {
+            ScrollPane scrollPane = new ScrollPane();
+            scrollPane.setFitToWidth(true);
+
+            VBox content = new VBox();
+            content.setSpacing(10);
+            content.setPadding(new Insets(10));
+
+            Bindings.bindContent(content.getChildren(), skinnable.itemsProperty());
+
+            scrollPane.setContent(content);
+            JFXScrollPane.smoothScrolling(scrollPane);
+
+            root.setCenter(scrollPane);
+        }
+
+        FXUtils.onChangeAndOperate(skinnable.loadingProperty(), loading -> {
+            if (loading) {
+                spinnerPane.showSpinner();
+            } else {
+                spinnerPane.hideSpinner();
+            }
+        });
+        spinnerPane.setContent(root);
+
+        getChildren().setAll(spinnerPane);
+    }
+
+    public static Node wrap(Node node) {
+        StackPane stackPane = new StackPane();
+        stackPane.setPadding(new Insets(0, 5, 0, 2));
+        stackPane.getChildren().setAll(node);
+        return stackPane;
+    }
+
+    public static JFXButton createToolbarButton(String text, SVG.SVGIcon creator, Runnable onClick) {
+        JFXButton ret = new JFXButton();
+        ret.getStyleClass().add("jfx-tool-bar-button");
+        ret.textFillProperty().bind(Theme.foregroundFillBinding());
+        ret.setGraphic(wrap(creator.createIcon(Theme.foregroundFillBinding(), -1, -1)));
+        ret.setText(text);
+        ret.setOnMouseClicked(e -> onClick.run());
+        return ret;
+    }
+
+    public static JFXButton createDecoratorButton(String tooltip, SVG.SVGIcon creator, Runnable onClick) {
+        JFXButton ret = new JFXButton();
+        ret.getStyleClass().add("jfx-decorator-button");
+        ret.textFillProperty().bind(Theme.foregroundFillBinding());
+        ret.setGraphic(wrap(creator.createIcon(Theme.foregroundFillBinding(), -1, -1)));
+        FXUtils.installFastTooltip(ret, tooltip);
+        ret.setOnMouseClicked(e -> onClick.run());
+        return ret;
+    }
+
+    protected abstract List<Node> initializeToolbar(T skinnable);
+}
@@ -1,217 +0,0 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
- */
-package org.jackhuang.hmcl.ui;
-
-import javafx.beans.property.SimpleStringProperty;
-import javafx.beans.property.StringProperty;
-import javafx.css.*;
-import javafx.scene.Node;
-import javafx.scene.control.Label;
-import javafx.scene.layout.StackPane;
-import javafx.scene.layout.VBox;
-import javafx.scene.paint.Color;
-import javafx.scene.paint.Paint;
-import javafx.scene.text.Font;
-
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.List;
-
-public class TwoLineListItem extends StackPane {
-
-    private final StringProperty title = new SimpleStringProperty(this, "title");
-    private final StringProperty subtitle = new SimpleStringProperty(this, "subtitle");
-
-    private final StyleableObjectProperty<Font> titleFont = new SimpleStyleableObjectProperty<>(StyleableProperties.TITLE_FONT, this, "title-font", Font.font(15));
-    private final StyleableObjectProperty<Font> subtitleFont = new SimpleStyleableObjectProperty<>(StyleableProperties.SUBTITLE_FONT, this, "subtitle-font", Font.getDefault());
-
-    private final StyleableObjectProperty<Paint> titleFill = new SimpleStyleableObjectProperty<>(StyleableProperties.TITLE_FILL, this, "title-fill", Color.BLACK);
-    private final StyleableObjectProperty<Paint> subtitleFill = new SimpleStyleableObjectProperty<>(StyleableProperties.SUBTITLE_FILL, this, "subtitle-fill", Color.GRAY);
-
-    public TwoLineListItem(String titleString, String subtitleString) {
-        this();
-
-        title.set(titleString);
-        subtitle.set(subtitleString);
-    }
-
-    public TwoLineListItem() {
-        Label lblTitle = new Label();
-        lblTitle.textFillProperty().bind(titleFill);
-        lblTitle.fontProperty().bind(titleFont);
-        lblTitle.textProperty().bind(title);
-
-        Label lblSubtitle = new Label();
-        lblSubtitle.textFillProperty().bind(subtitleFill);
-        lblSubtitle.fontProperty().bind(subtitleFont);
-        lblSubtitle.textProperty().bind(subtitle);
-
-        VBox vbox = new VBox();
-        vbox.getChildren().setAll(lblTitle, lblSubtitle);
-        getChildren().setAll(vbox);
-    }
-
-    public String getTitle() {
-        return title.get();
-    }
-
-    public StringProperty titleProperty() {
-        return title;
-    }
-
-    public void setTitle(String title) {
-        this.title.set(title);
-    }
-
-    public String getSubtitle() {
-        return subtitle.get();
-    }
-
-    public StringProperty subtitleProperty() {
-        return subtitle;
-    }
-
-    public void setSubtitle(String subtitle) {
-        this.subtitle.set(subtitle);
-    }
-
-    public Font getTitleFont() {
-        return titleFont.get();
-    }
-
-    public StyleableObjectProperty<Font> titleFontProperty() {
-        return titleFont;
-    }
-
-    public void setTitleFont(Font titleFont) {
-        this.titleFont.set(titleFont);
-    }
-
-    public Font getSubtitleFont() {
-        return subtitleFont.get();
-    }
-
-    public StyleableObjectProperty<Font> subtitleFontProperty() {
-        return subtitleFont;
-    }
-
-    public void setSubtitleFont(Font subtitleFont) {
-        this.subtitleFont.set(subtitleFont);
-    }
-
-    public Paint getTitleFill() {
-        return titleFill.get();
-    }
-
-    public StyleableObjectProperty<Paint> titleFillProperty() {
-        return titleFill;
-    }
-
-    public void setTitleFill(Paint titleFill) {
-        this.titleFill.set(titleFill);
-    }
-
-    public Paint getSubtitleFill() {
-        return subtitleFill.get();
-    }
-
-    public StyleableObjectProperty<Paint> subtitleFillProperty() {
-        return subtitleFill;
-    }
-
-    public void setSubtitleFill(Paint subtitleFill) {
-        this.subtitleFill.set(subtitleFill);
-    }
-
-    @Override
-    public String toString() {
-        return getTitle();
-    }
-
-    @Override
-    public List<CssMetaData<? extends Styleable, ?>> getCssMetaData() {
-        return getClassCssMetaData();
-    }
-
-    public static List<CssMetaData<? extends Styleable, ?>> getClassCssMetaData() {
-        return StyleableProperties.STYLEABLES;
-    }
-
-    private static class StyleableProperties {
-
-        private static final FontCssMetaData<TwoLineListItem> TITLE_FONT = new FontCssMetaData<TwoLineListItem>("-jfx-title-font", Font.font(15)) {
-            @Override
-            public boolean isSettable(TwoLineListItem control) {
-                return control.title == null || !control.title.isBound();
-            }
-
-            @Override
-            public StyleableProperty<Font> getStyleableProperty(TwoLineListItem control) {
-                return control.titleFontProperty();
-            }
-        };
-
-        private static final FontCssMetaData<TwoLineListItem> SUBTITLE_FONT = new FontCssMetaData<TwoLineListItem>("-jfx-subtitle-font", Font.getDefault()) {
-            @Override
-            public boolean isSettable(TwoLineListItem control) {
-                return control.subtitle == null || !control.subtitle.isBound();
-            }
-
-            @Override
-            public StyleableProperty<Font> getStyleableProperty(TwoLineListItem control) {
-                return control.subtitleFontProperty();
-            }
-        };
-
-        private static final CssMetaData<TwoLineListItem, Paint> TITLE_FILL = new CssMetaData<TwoLineListItem, Paint>("-jfx-title-fill", StyleConverter.getPaintConverter(), Color.BLACK) {
-            @Override
-            public boolean isSettable(TwoLineListItem control) {
-                return control.titleFill == null || !control.titleFill.isBound();
-            }
-
-            @Override
-            public StyleableProperty<Paint> getStyleableProperty(TwoLineListItem control) {
-                return control.titleFillProperty();
-            }
-        };
-
-        private static final CssMetaData<TwoLineListItem, Paint> SUBTITLE_FILL = new CssMetaData<TwoLineListItem, Paint>("-jfx-subtitle-fill", StyleConverter.getPaintConverter(), Color.GRAY) {
-            @Override
-            public boolean isSettable(TwoLineListItem control) {
-                return control.subtitleFill == null || !control.subtitleFill.isBound();
-            }
-
-            @Override
-            public StyleableProperty<Paint> getStyleableProperty(TwoLineListItem control) {
-                return control.subtitleFillProperty();
-            }
-        };
-
-        private static final List<CssMetaData<? extends Styleable, ?>> STYLEABLES;
-
-        private StyleableProperties() {
-        }
-
-        static {
-            List<CssMetaData<? extends Styleable, ?>> styleables = new ArrayList<>(Node.getClassCssMetaData());
-            Collections.addAll(styleables, TITLE_FONT);
-            Collections.addAll(styleables, SUBTITLE_FONT);
-            STYLEABLES = Collections.unmodifiableList(styleables);
-        }
-    }
-}
@@ -0,0 +1,65 @@
+/*
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package org.jackhuang.hmcl.ui;
+
+import com.jfoenix.controls.JFXButton;
+import com.jfoenix.controls.JFXDialogLayout;
+import javafx.scene.control.Label;
+import javafx.scene.web.WebEngine;
+import javafx.scene.web.WebView;
+import org.jackhuang.hmcl.Metadata;
+import org.jackhuang.hmcl.ui.construct.DialogCloseEvent;
+
+import static org.jackhuang.hmcl.Metadata.CHANGELOG_URL;
+import static org.jackhuang.hmcl.setting.ConfigHolder.config;
+import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
+
+public class UpgradeDialog extends JFXDialogLayout {
+    public UpgradeDialog(Runnable updateRunnable) {
+        {
+            setHeading(new Label(i18n("update.changelog")));
+        }
+
+        {
+            WebView webView = new WebView();
+            webView.getEngine().setUserDataDirectory(Metadata.HMCL_DIRECTORY.toFile());
+            WebEngine engine = webView.getEngine();
+            engine.load(CHANGELOG_URL + config().getUpdateChannel().channelName);
+            engine.getLoadWorker().stateProperty().addListener((observable, oldValue, newValue) -> {
+                String url = engine.getLoadWorker().getMessage().trim();
+                if (!url.startsWith(CHANGELOG_URL)) {
+                    engine.getLoadWorker().cancel();
+                    FXUtils.openLink(url);
+                }
+            });
+            setBody(webView);
+        }
+
+        {
+            JFXButton updateButton = new JFXButton(i18n("update.accept"));
+            updateButton.getStyleClass().add("dialog-accept");
+            updateButton.setOnMouseClicked(e -> updateRunnable.run());
+
+            JFXButton cancelButton = new JFXButton(i18n("button.cancel"));
+            cancelButton.getStyleClass().add("dialog-cancel");
+            cancelButton.setOnMouseClicked(e -> fireEvent(new DialogCloseEvent()));
+
+            setActions(updateButton, cancelButton);
+        }
+    }
+}
@@ -1,231 +0,0 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
- */
-package org.jackhuang.hmcl.ui;
-
-import com.jfoenix.concurrency.JFXUtilities;
-import com.jfoenix.controls.JFXButton;
-import javafx.beans.binding.Bindings;
-import javafx.event.EventHandler;
-import javafx.fxml.FXML;
-import javafx.geometry.Insets;
-import javafx.geometry.Pos;
-import javafx.scene.control.Label;
-import javafx.scene.effect.BlurType;
-import javafx.scene.effect.DropShadow;
-import javafx.scene.image.Image;
-import javafx.scene.image.ImageView;
-import javafx.scene.input.MouseButton;
-import javafx.scene.input.MouseEvent;
-import javafx.scene.layout.*;
-import javafx.scene.paint.Color;
-import javafx.scene.text.TextAlignment;
-
-import org.jackhuang.hmcl.setting.Theme;
-import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
-
-import java.util.Optional;
-
-public final class VersionItem extends StackPane {
-    @FXML
-    private Pane icon;
-    @FXML
-    private VBox content;
-    @FXML
-    private StackPane header;
-    @FXML
-    private StackPane body;
-    @FXML
-    private JFXButton btnSettings;
-    @FXML
-    private JFXButton btnUpdate;
-    @FXML
-    private JFXButton btnLaunch;
-    @FXML
-    private JFXButton btnScript;
-    @FXML
-    private Label lblVersionName;
-    @FXML
-    private Label lblGameVersion;
-    @FXML
-    private Label lblLibraries;
-    @FXML
-    private ImageView iconView;
-
-    private EventHandler<? super MouseEvent> launchClickedHandler = null;
-
-    private void initializeComponents() {
-        setPickOnBounds(false);
-        FXUtils.setLimitWidth(this, 160);
-        FXUtils.setLimitHeight(this, 149);
-
-        content = new VBox();
-        {
-            header = new StackPane();
-            VBox.setVgrow(header, Priority.ALWAYS);
-            header.setPickOnBounds(false);
-            header.setPadding(new Insets(8));
-            header.setStyle("-fx-background-radius: 2 2 0 0; -fx-background-color: rgb(255,255,255,0.87);");
-            {
-                VBox headerContent = new VBox();
-                headerContent.setPadding(new Insets(8, 8, 0, 8));
-                {
-                    lblVersionName = new Label();
-                    lblVersionName.setStyle("-fx-font-size: 15;");
-                    lblVersionName.setTextAlignment(TextAlignment.JUSTIFY);
-                    lblVersionName.setWrapText(true);
-                    headerContent.getChildren().add(lblVersionName);
-
-                    lblGameVersion = new Label();
-                    lblGameVersion.setStyle("-fx-font-size: 11;");
-                    lblGameVersion.setTextAlignment(TextAlignment.JUSTIFY);
-                    lblGameVersion.setWrapText(true);
-                    headerContent.getChildren().add(lblGameVersion);
-
-                    lblLibraries = new Label();
-                    lblLibraries.setStyle("-fx-font-size: 10; -fx-text-fill: gray;");
-                    lblLibraries.setTextAlignment(TextAlignment.JUSTIFY);
-                    lblLibraries.setWrapText(true);
-                    headerContent.getChildren().add(lblLibraries);
-                }
-                header.getChildren().add(headerContent);
-            }
-            content.getChildren().add(header);
-
-            body = new StackPane();
-            body.setStyle("-fx-background-radius: 0 0 2 2; -fx-background-color: rgb(255,255,255,0.87); -fx-padding: 8;");
-            body.setMinHeight(40);
-            body.setPickOnBounds(false);
-            {
-                BorderPane bodyContent = new BorderPane();
-                {
-                    HBox hbox = new HBox();
-                    hbox.setSpacing(8);
-                    {
-                        btnSettings = new JFXButton();
-                        btnSettings.getStyleClass().add("toggle-icon4");
-                        FXUtils.setLimitWidth(btnSettings, 30);
-                        FXUtils.setLimitHeight(btnSettings, 30);
-                        hbox.getChildren().add(btnSettings);
-
-                        btnUpdate = new JFXButton();
-                        btnUpdate.getStyleClass().add("toggle-icon4");
-                        FXUtils.setLimitWidth(btnUpdate, 30);
-                        FXUtils.setLimitHeight(btnUpdate, 30);
-                        hbox.getChildren().add(btnUpdate);
-                    }
-                    bodyContent.setLeft(hbox);
-                }
-                {
-                    HBox hbox = new HBox();
-                    hbox.setSpacing(8);
-                    {
-                        btnScript = new JFXButton();
-                        btnScript.getStyleClass().add("toggle-icon4");
-                        FXUtils.setLimitWidth(btnScript, 30);
-                        FXUtils.setLimitHeight(btnScript, 30);
-                        hbox.getChildren().add(btnScript);
-
-                        btnLaunch = new JFXButton();
-                        btnLaunch.getStyleClass().add("toggle-icon4");
-                        FXUtils.setLimitWidth(btnLaunch, 30);
-                        FXUtils.setLimitHeight(btnLaunch, 30);
-                        hbox.getChildren().add(btnLaunch);
-                    }
-                    bodyContent.setRight(hbox);
-                }
-                body.getChildren().setAll(bodyContent);
-            }
-            content.getChildren().add(body);
-        }
-        getChildren().add(content);
-
-        icon = new StackPane();
-        StackPane.setAlignment(icon, Pos.TOP_RIGHT);
-        icon.setPickOnBounds(false);
-        {
-            iconView = new ImageView();
-            StackPane.setAlignment(iconView, Pos.CENTER_RIGHT);
-            StackPane.setMargin(iconView, new Insets(0, 12, 0, 0));
-            iconView.setImage(new Image("/assets/img/icon.png"));
-            icon.getChildren().add(iconView);
-        }
-        getChildren().add(icon);
-    }
-
-    public VersionItem() {
-        initializeComponents();
-        setEffect(new DropShadow(BlurType.GAUSSIAN, Color.rgb(0, 0, 0, 0.26), 5.0, 0.12, -1.0, 1.0));
-        btnSettings.setGraphic(SVG.gear(Theme.blackFillBinding(), 15, 15));
-        btnUpdate.setGraphic(SVG.update(Theme.blackFillBinding(), 15, 15));
-        btnLaunch.setGraphic(SVG.launch(Theme.blackFillBinding(), 15, 15));
-        btnScript.setGraphic(SVG.script(Theme.blackFillBinding(), 15, 15));
-
-        JFXUtilities.runInFX(() -> {
-            FXUtils.installTooltip(btnSettings, i18n("version.settings"));
-            FXUtils.installTooltip(btnUpdate, i18n("version.update"));
-            FXUtils.installTooltip(btnLaunch, i18n("version.launch"));
-            FXUtils.installTooltip(btnScript, i18n("version.launch_script"));
-        });
-
-        icon.translateYProperty().bind(Bindings.createDoubleBinding(() -> header.getBoundsInParent().getHeight() - icon.getHeight() / 2 - 16, header.boundsInParentProperty(), icon.heightProperty()));
-        FXUtils.limitSize(iconView, 32, 32);
-
-        setOnMouseClicked(e -> {
-            if (e.getButton() == MouseButton.PRIMARY)
-                if (e.getClickCount() == 2)
-                    Optional.ofNullable(launchClickedHandler).ifPresent(h -> h.handle(e));
-        });
-    }
-
-    public void setUpdate(boolean update) {
-        btnUpdate.setVisible(update);
-    }
-
-    public void setVersionName(String versionName) {
-        lblVersionName.setText(versionName);
-    }
-
-    public void setGameVersion(String gameVersion) {
-        lblGameVersion.setText(gameVersion);
-    }
-
-    public void setLibraries(String libraries) {
-        lblLibraries.setText(libraries);
-    }
-
-    public void setImage(Image image) {
-        iconView.setImage(image);
-    }
-
-    public void setOnSettingsButtonClicked(EventHandler<? super MouseEvent> handler) {
-        btnSettings.setOnMouseClicked(handler);
-    }
-
-    public void setOnScriptButtonClicked(EventHandler<? super MouseEvent> handler) {
-        btnScript.setOnMouseClicked(handler);
-    }
-
-    public void setOnLaunchButtonClicked(EventHandler<? super MouseEvent> handler) {
-        launchClickedHandler = handler;
-        btnLaunch.setOnMouseClicked(handler);
-    }
-
-    public void setOnUpdateButtonClicked(EventHandler<? super MouseEvent> handler) {
-        btnUpdate.setOnMouseClicked(handler);
-    }
-}
@@ -1,218 +0,0 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
- */
-package org.jackhuang.hmcl.ui;
-
-import com.jfoenix.controls.JFXButton;
-import com.jfoenix.controls.JFXListView;
-import com.jfoenix.controls.JFXPopup;
-import com.jfoenix.controls.JFXTabPane;
-import javafx.beans.property.SimpleStringProperty;
-import javafx.beans.property.StringProperty;
-import javafx.fxml.FXML;
-import javafx.scene.control.Tab;
-import javafx.scene.layout.StackPane;
-import org.jackhuang.hmcl.download.game.GameAssetIndexDownloadTask;
-import org.jackhuang.hmcl.setting.EnumGameDirectory;
-import org.jackhuang.hmcl.setting.Profile;
-import org.jackhuang.hmcl.ui.export.ExportWizardProvider;
-import org.jackhuang.hmcl.ui.wizard.DecoratorPage;
-import org.jackhuang.hmcl.util.FileUtils;
-
-import java.io.File;
-
-import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
-
-public final class VersionPage extends StackPane implements DecoratorPage {
-    private final StringProperty title = new SimpleStringProperty(this, "title", null);
-
-    @FXML
-    private VersionSettingsController versionSettingsController;
-    @FXML
-    private Tab modTab;
-    @FXML
-    private ModController modController;
-    @FXML
-    private InstallerController installerController;
-    @FXML
-    private JFXListView<?> browseList;
-    @FXML
-    private JFXListView<?> managementList;
-    @FXML
-    private JFXButton btnBrowseMenu;
-    @FXML
-    private JFXButton btnDelete;
-    @FXML
-    private JFXButton btnManagementMenu;
-    @FXML
-    private JFXButton btnExport;
-    @FXML
-    private StackPane rootPane;
-    @FXML
-    private StackPane contentPane;
-    @FXML
-    private JFXTabPane tabPane;
-
-    private final JFXPopup browsePopup;
-    private final JFXPopup managementPopup;
-
-    private Profile profile;
-    private String version;
-
-    {
-        FXUtils.loadFXML(this, "/assets/fxml/version/version.fxml");
-
-        getChildren().removeAll(browseList, managementList);
-
-        browsePopup = new JFXPopup(browseList);
-        managementPopup = new JFXPopup(managementList);
-
-        FXUtils.installTooltip(btnDelete, i18n("version.manage.remove"));
-        FXUtils.installTooltip(btnBrowseMenu, i18n("settings.game.exploration"));
-        FXUtils.installTooltip(btnManagementMenu, i18n("settings.game.management"));
-        FXUtils.installTooltip(btnExport, i18n("modpack.export"));
-    }
-
-    public void load(String id, Profile profile) {
-        this.version = id;
-        this.profile = profile;
-
-        title.set(i18n("settings.game") + " - " + id);
-
-        versionSettingsController.loadVersionSetting(profile, id);
-        modController.setParentTab(tabPane);
-        modTab.setUserData(modController);
-        modController.loadMods(profile.getModManager(), id);
-        installerController.loadVersion(profile, id);
-    }
-
-    @FXML
-    private void onBrowseMenu() {
-        browseList.getSelectionModel().select(-1);
-        browsePopup.show(btnBrowseMenu, JFXPopup.PopupVPosition.TOP, JFXPopup.PopupHPosition.RIGHT, -12, 15);
-    }
-
-    @FXML
-    private void onManagementMenu() {
-        managementList.getSelectionModel().select(-1);
-        managementPopup.show(btnManagementMenu, JFXPopup.PopupVPosition.TOP, JFXPopup.PopupHPosition.RIGHT, -12, 15);
-    }
-
-    @FXML
-    private void onDelete() {
-        deleteVersion(profile, version);
-    }
-
-    @FXML
-    private void onExport() {
-        exportVersion(profile, version);
-    }
-
-    @FXML
-    private void onBrowse() {
-        String sub;
-        switch (browseList.getSelectionModel().getSelectedIndex()) {
-            case 0:
-                sub = "";
-                break;
-            case 1:
-                sub = "mods";
-                break;
-            case 2:
-                sub = "coremods";
-                break;
-            case 3:
-                sub = "config";
-                break;
-            case 4:
-                sub = "resourcepacks";
-                break;
-            case 5:
-                sub = "screenshots";
-                break;
-            case 6:
-                sub = "saves";
-                break;
-            default:
-                return;
-        }
-        FXUtils.openFolder(new File(profile.getRepository().getRunDirectory(version), sub));
-    }
-
-    @FXML
-    private void onManagement() {
-        switch (managementList.getSelectionModel().getSelectedIndex()) {
-            case 0: // rename a version
-                renameVersion(profile, version);
-                break;
-            case 1: // remove a version
-                deleteVersion(profile, version);
-                break;
-            case 2: // redownload asset index
-                new GameAssetIndexDownloadTask(profile.getDependency(), profile.getRepository().getResolvedVersion(version)).start();
-                break;
-            case 3: // delete libraries
-                FileUtils.deleteDirectoryQuietly(new File(profile.getRepository().getBaseDirectory(), "libraries"));
-                break;
-            case 4:
-                throw new Error();
-        }
-    }
-
-    public String getTitle() {
-        return title.get();
-    }
-
-    @Override
-    public StringProperty titleProperty() {
-        return title;
-    }
-
-    public void setTitle(String title) {
-        this.title.set(title);
-    }
-
-    public static void deleteVersion(Profile profile, String version) {
-        boolean isIndependent = profile.getVersionSetting(version).getGameDirType() == EnumGameDirectory.VERSION_FOLDER;
-        boolean isMovingToTrashSupported = FileUtils.isMovingToTrashSupported();
-        String message = isIndependent ? i18n("version.manage.remove.confirm.independent", version) :
-                isMovingToTrashSupported ? i18n("version.manage.remove.confirm.trash", version, version + "_removed") :
-                        i18n("version.manage.remove.confirm", version);
-        Controllers.confirmDialog(message, i18n("message.confirm"), () -> {
-            if (profile.getRepository().removeVersionFromDisk(version)) {
-                profile.getRepository().refreshVersionsAsync().start();
-                Controllers.navigate(null);
-            }
-        }, null);
-    }
-
-    public static void renameVersion(Profile profile, String version) {
-        Controllers.inputDialog(i18n("version.manage.rename.message"), (res, resolve, reject) -> {
-            if (profile.getRepository().renameVersion(version, res)) {
-                profile.getRepository().refreshVersionsAsync().start();
-                Controllers.navigate(null);
-                resolve.run();
-            } else {
-                reject.accept(i18n("version.manage.rename.fail"));
-            }
-        }).setInitialText(version);
-    }
-
-    public static void exportVersion(Profile profile, String version) {
-        Controllers.getDecorator().startWizard(new ExportWizardProvider(profile, version), i18n("modpack.wizard"));
-    }
-}
@@ -0,0 +1,58 @@
+/*
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package org.jackhuang.hmcl.ui;
+
+import javafx.beans.InvalidationListener;
+import javafx.beans.WeakInvalidationListener;
+import javafx.beans.value.ChangeListener;
+import javafx.beans.value.WeakChangeListener;
+import javafx.collections.ListChangeListener;
+import javafx.collections.WeakListChangeListener;
+
+import java.util.LinkedList;
+import java.util.List;
+
+public class WeakListenerHolder {
+    private List<Object> refs = new LinkedList<>();
+
+    public WeakListenerHolder() {
+    }
+
+    public WeakInvalidationListener weak(InvalidationListener listener) {
+        refs.add(listener);
+        return new WeakInvalidationListener(listener);
+    }
+
+    public <T> WeakChangeListener<T> weak(ChangeListener<T> listener) {
+        refs.add(listener);
+        return new WeakChangeListener<>(listener);
+    }
+
+    public <T> WeakListChangeListener<T> weak(ListChangeListener<T> listener) {
+        refs.add(listener);
+        return new WeakListChangeListener<>(listener);
+    }
+
+    public void add(Object obj) {
+        refs.add(obj);
+    }
+
+    public boolean remove(Object obj) {
+        return refs.remove(obj);
+    }
+}
@@ -1,7 +1,7 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
@@ -13,24 +13,57 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl.ui;

+import com.jfoenix.controls.JFXProgressBar;
+import javafx.beans.binding.Bindings;
 import javafx.scene.Scene;
-import javafx.scene.image.Image;
+import javafx.scene.layout.BorderPane;
+import javafx.scene.layout.StackPane;
+import javafx.scene.web.WebEngine;
 import javafx.scene.web.WebView;
 import javafx.stage.Stage;
+import org.jackhuang.hmcl.Metadata;

 import static org.jackhuang.hmcl.setting.ConfigHolder.config;
+import static org.jackhuang.hmcl.ui.FXUtils.newImage;

 public class WebStage extends Stage {
-    private final WebView webView = new WebView();
+    protected final StackPane pane = new StackPane();
+    protected final JFXProgressBar progressBar = new JFXProgressBar();
+    protected final WebView webView = new WebView();
+    protected final WebEngine webEngine = webView.getEngine();

    public WebStage() {
-        setScene(new Scene(webView, 800, 480));
+        this(800, 480);
+    }
+
+    public WebStage(int width, int height) {
+        setScene(new Scene(pane, width, height));
        getScene().getStylesheets().addAll(config().getTheme().getStylesheets());
-        getIcons().add(new Image("/assets/img/icon.png"));
+        getIcons().add(newImage("/assets/img/icon.png"));
+        webView.getEngine().setUserDataDirectory(Metadata.HMCL_DIRECTORY.toFile());
+        webView.setContextMenuEnabled(false);
+        progressBar.progressProperty().bind(webView.getEngine().getLoadWorker().progressProperty());
+
+        progressBar.visibleProperty().bind(Bindings.createBooleanBinding(() -> {
+            switch (webView.getEngine().getLoadWorker().getState()) {
+                case SUCCEEDED:
+                case FAILED:
+                case CANCELLED:
+                    return false;
+                default:
+                    return true;
+            }
+        }, webEngine.getLoadWorker().stateProperty()));
+
+        BorderPane borderPane = new BorderPane();
+        borderPane.setPickOnBounds(false);
+        borderPane.setTop(progressBar);
+        progressBar.prefWidthProperty().bind(borderPane.widthProperty());
+        pane.getChildren().setAll(webView, borderPane);
    }

    public WebView getWebView() {
@@ -0,0 +1,110 @@
+/*
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package org.jackhuang.hmcl.ui.account;
+
+import javafx.beans.binding.Bindings;
+import javafx.beans.property.ObjectProperty;
+import javafx.beans.property.SimpleObjectProperty;
+import javafx.collections.ObservableList;
+import javafx.scene.Node;
+import javafx.scene.control.Tooltip;
+import javafx.scene.image.ImageView;
+import org.jackhuang.hmcl.auth.Account;
+import org.jackhuang.hmcl.auth.authlibinjector.AuthlibInjectorAccount;
+import org.jackhuang.hmcl.auth.authlibinjector.AuthlibInjectorServer;
+import org.jackhuang.hmcl.auth.yggdrasil.YggdrasilAccount;
+import org.jackhuang.hmcl.game.TexturesLoader;
+import org.jackhuang.hmcl.setting.Accounts;
+import org.jackhuang.hmcl.ui.FXUtils;
+import org.jackhuang.hmcl.ui.construct.AdvancedListItem;
+import org.jackhuang.hmcl.util.Pair;
+
+import static org.jackhuang.hmcl.ui.FXUtils.newImage;
+import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
+
+public class AccountAdvancedListItem extends AdvancedListItem {
+    private final Tooltip tooltip;
+    private final ImageView imageView;
+
+    private ObjectProperty<Account> account = new SimpleObjectProperty<Account>() {
+
+        @Override
+        protected void invalidated() {
+            Account account = get();
+            if (account == null) {
+                titleProperty().unbind();
+                setTitle(i18n("account.missing"));
+                setSubtitle(i18n("account.missing.add"));
+                imageView.imageProperty().unbind();
+                imageView.setImage(newImage("/assets/img/craft_table.png"));
+                tooltip.setText("");
+            } else {
+                titleProperty().bind(Bindings.createStringBinding(account::getCharacter, account));
+                setSubtitle(accountSubtitle(account));
+                imageView.imageProperty().bind(TexturesLoader.fxAvatarBinding(account, 32));
+                tooltip.setText(account.getCharacter() + " " + accountTooltip(account));
+            }
+        }
+    };
+
+    public AccountAdvancedListItem() {
+        tooltip = new Tooltip();
+        FXUtils.installFastTooltip(this, tooltip);
+
+        Pair<Node, ImageView> view = createImageView(null);
+        setLeftGraphic(view.getKey());
+        imageView = view.getValue();
+
+        setOnScroll(event -> {
+            Account current = account.get();
+            if (current == null) return;
+            ObservableList<Account> accounts = Accounts.getAccounts();
+            int currentIndex = accounts.indexOf(account.get());
+            if (event.getDeltaY() > 0) { // up
+                currentIndex--;
+            } else { // down
+                currentIndex++;
+            }
+            Accounts.setSelectedAccount(accounts.get((currentIndex + accounts.size()) % accounts.size()));
+        });
+    }
+
+    public ObjectProperty<Account> accountProperty() {
+        return account;
+    }
+
+    private static String accountSubtitle(Account account) {
+        String loginTypeName = Accounts.getLocalizedLoginTypeName(Accounts.getAccountFactory(account));
+        if (account instanceof AuthlibInjectorAccount) {
+            return ((AuthlibInjectorAccount) account).getServer().getName();
+        } else {
+            return loginTypeName;
+        }
+    }
+
+    private static String accountTooltip(Account account) {
+        if (account instanceof AuthlibInjectorAccount) {
+            AuthlibInjectorServer server = ((AuthlibInjectorAccount) account).getServer();
+            return account.getUsername() + ", " + i18n("account.injector.server") + ": " + server.getName();
+        } else if (account instanceof YggdrasilAccount) {
+            return account.getUsername();
+        } else {
+            return "";
+        }
+    }
+}
@@ -0,0 +1,58 @@
+/*
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package org.jackhuang.hmcl.ui.account;
+
+import javafx.beans.property.*;
+import javafx.collections.FXCollections;
+import org.jackhuang.hmcl.auth.Account;
+import org.jackhuang.hmcl.ui.Controllers;
+import org.jackhuang.hmcl.ui.ListPage;
+import org.jackhuang.hmcl.ui.decorator.DecoratorPage;
+import org.jackhuang.hmcl.util.javafx.MappedObservableList;
+
+import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
+import static org.jackhuang.hmcl.util.javafx.ExtendedProperties.createSelectedItemPropertyFor;
+
+public class AccountList extends ListPage<AccountListItem> implements DecoratorPage {
+    private final ReadOnlyObjectWrapper<State> state = new ReadOnlyObjectWrapper<>(State.fromTitle(i18n("account.manage")));
+    private final ListProperty<Account> accounts = new SimpleListProperty<>(this, "accounts", FXCollections.observableArrayList());
+    private final ObjectProperty<Account> selectedAccount;
+
+    public AccountList() {
+        setItems(MappedObservableList.create(accounts, AccountListItem::new));
+        selectedAccount = createSelectedItemPropertyFor(getItems(), Account.class);
+    }
+
+    public ObjectProperty<Account> selectedAccountProperty() {
+        return selectedAccount;
+    }
+
+    public ListProperty<Account> accountsProperty() {
+        return accounts;
+    }
+
+    @Override
+    public void add() {
+        Controllers.dialog(new AddAccountPane());
+    }
+
+    @Override
+    public ReadOnlyObjectProperty<State> stateProperty() {
+        return state.getReadOnlyProperty();
+    }
+}
@@ -0,0 +1,227 @@
+/*
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package org.jackhuang.hmcl.ui.account;
+
+import javafx.beans.binding.Bindings;
+import javafx.beans.binding.ObjectBinding;
+import javafx.beans.binding.StringBinding;
+import javafx.beans.property.*;
+import javafx.beans.value.ObservableBooleanValue;
+import javafx.scene.control.RadioButton;
+import javafx.scene.control.Skin;
+import javafx.scene.image.Image;
+import javafx.stage.FileChooser;
+import org.jackhuang.hmcl.auth.Account;
+import org.jackhuang.hmcl.auth.AuthenticationException;
+import org.jackhuang.hmcl.auth.CredentialExpiredException;
+import org.jackhuang.hmcl.auth.authlibinjector.AuthlibInjectorAccount;
+import org.jackhuang.hmcl.auth.authlibinjector.AuthlibInjectorServer;
+import org.jackhuang.hmcl.auth.offline.OfflineAccount;
+import org.jackhuang.hmcl.auth.yggdrasil.CompleteGameProfile;
+import org.jackhuang.hmcl.auth.yggdrasil.TextureType;
+import org.jackhuang.hmcl.auth.yggdrasil.YggdrasilAccount;
+import org.jackhuang.hmcl.game.TexturesLoader;
+import org.jackhuang.hmcl.setting.Accounts;
+import org.jackhuang.hmcl.task.Schedulers;
+import org.jackhuang.hmcl.task.Task;
+import org.jackhuang.hmcl.ui.Controllers;
+import org.jackhuang.hmcl.ui.DialogController;
+import org.jackhuang.hmcl.ui.construct.MessageDialogPane.MessageType;
+import org.jackhuang.hmcl.util.skin.InvalidSkinException;
+import org.jackhuang.hmcl.util.skin.NormalizedSkin;
+import org.jetbrains.annotations.Nullable;
+
+import java.awt.image.BufferedImage;
+import java.io.File;
+import java.io.IOException;
+import java.util.Optional;
+import java.util.Set;
+import java.util.concurrent.CancellationException;
+import java.util.logging.Level;
+
+import javax.imageio.ImageIO;
+
+import static java.util.Collections.emptySet;
+import static javafx.beans.binding.Bindings.createBooleanBinding;
+import static org.jackhuang.hmcl.util.Logging.LOG;
+import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
+
+public class AccountListItem extends RadioButton {
+
+    private final Account account;
+    private final StringProperty title = new SimpleStringProperty();
+    private final StringProperty subtitle = new SimpleStringProperty();
+    private final ObjectProperty<Image> image = new SimpleObjectProperty<>();
+
+    public AccountListItem(Account account) {
+        this.account = account;
+        getStyleClass().clear();
+        setUserData(account);
+
+        String loginTypeName = Accounts.getLocalizedLoginTypeName(Accounts.getAccountFactory(account));
+        if (account instanceof AuthlibInjectorAccount) {
+            AuthlibInjectorServer server = ((AuthlibInjectorAccount) account).getServer();
+            subtitle.bind(Bindings.concat(
+                    loginTypeName, ", ", i18n("account.injector.server"), ": ",
+                    Bindings.createStringBinding(server::getName, server)));
+        } else {
+            subtitle.set(loginTypeName);
+        }
+
+        StringBinding characterName = Bindings.createStringBinding(account::getCharacter, account);
+        if (account instanceof OfflineAccount) {
+            title.bind(characterName);
+        } else {
+            title.bind(
+                    account.getUsername().isEmpty() ? characterName :
+                            Bindings.concat(account.getUsername(), " - ", characterName));
+        }
+
+        image.bind(TexturesLoader.fxAvatarBinding(account, 32));
+    }
+
+    @Override
+    protected Skin<?> createDefaultSkin() {
+        return new AccountListItemSkin(this);
+    }
+
+    public Task<?> refreshAsync() {
+        return Task.runAsync(() -> {
+            account.clearCache();
+            try {
+                account.logIn();
+            } catch (CredentialExpiredException e) {
+                try {
+                    DialogController.logIn(account);
+                } catch (CancellationException e1) {
+                    // ignore cancellation
+                } catch (Exception e1) {
+                    LOG.log(Level.WARNING, "Failed to refresh " + account + " with password", e1);
+                    throw e1;
+                }
+            } catch (AuthenticationException e) {
+                LOG.log(Level.WARNING, "Failed to refresh " + account + " with token", e);
+                throw e;
+            }
+        });
+    }
+
+    public ObservableBooleanValue canUploadSkin() {
+        if (account instanceof YggdrasilAccount) {
+            if (account instanceof AuthlibInjectorAccount) {
+                AuthlibInjectorAccount aiAccount = (AuthlibInjectorAccount) account;
+                ObjectBinding<Optional<CompleteGameProfile>> profile = aiAccount.getYggdrasilService().getProfileRepository().binding(aiAccount.getUUID());
+                return createBooleanBinding(() -> {
+                    Set<TextureType> uploadableTextures = profile.get()
+                            .map(AuthlibInjectorAccount::getUploadableTextures)
+                            .orElse(emptySet());
+                    return uploadableTextures.contains(TextureType.SKIN);
+                }, profile);
+            } else {
+                return createBooleanBinding(() -> true);
+            }
+        } else {
+            return createBooleanBinding(() -> false);
+        }
+    }
+
+    /**
+     * @return the skin upload task, null if no file is selected
+     */
+    @Nullable
+    public Task<?> uploadSkin() {
+        if (!(account instanceof YggdrasilAccount)) {
+            return null;
+        }
+
+        FileChooser chooser = new FileChooser();
+        chooser.setTitle(i18n("account.skin.upload"));
+        chooser.getExtensionFilters().add(new FileChooser.ExtensionFilter(i18n("account.skin.file"), "*.png"));
+        File selectedFile = chooser.showOpenDialog(Controllers.getStage());
+        if (selectedFile == null) {
+            return null;
+        }
+
+        return refreshAsync()
+                .thenRunAsync(() -> {
+                    BufferedImage skinImg;
+                    try {
+                        skinImg = ImageIO.read(selectedFile);
+                    } catch (IOException e) {
+                        throw new InvalidSkinException("Failed to read skin image", e);
+                    }
+                    if (skinImg == null) {
+                        throw new InvalidSkinException("Failed to read skin image");
+                    }
+                    NormalizedSkin skin = new NormalizedSkin(skinImg);
+                    String model = skin.isSlim() ? "slim" : "";
+                    LOG.info("Uploading skin [" + selectedFile + "], model [" + model + "]");
+                    ((YggdrasilAccount) account).uploadSkin(model, selectedFile.toPath());
+                })
+                .thenComposeAsync(refreshAsync())
+                .whenComplete(Schedulers.javafx(), e -> {
+                    if (e != null) {
+                        Controllers.dialog(AddAccountPane.accountException(e), i18n("account.skin.upload.failed"), MessageType.ERROR);
+                    }
+                });
+    }
+
+    public void remove() {
+        Accounts.getAccounts().remove(account);
+    }
+
+    public Account getAccount() {
+        return account;
+    }
+
+    public String getTitle() {
+        return title.get();
+    }
+
+    public void setTitle(String title) {
+        this.title.set(title);
+    }
+
+    public StringProperty titleProperty() {
+        return title;
+    }
+
+    public String getSubtitle() {
+        return subtitle.get();
+    }
+
+    public void setSubtitle(String subtitle) {
+        this.subtitle.set(subtitle);
+    }
+
+    public StringProperty subtitleProperty() {
+        return subtitle;
+    }
+
+    public Image getImage() {
+        return image.get();
+    }
+
+    public void setImage(Image image) {
+        this.image.set(image);
+    }
+
+    public ObjectProperty<Image> imageProperty() {
+        return image;
+    }
+}
@@ -0,0 +1,140 @@
+/*
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package org.jackhuang.hmcl.ui.account;
+
+import com.jfoenix.controls.JFXButton;
+import com.jfoenix.controls.JFXRadioButton;
+import com.jfoenix.effects.JFXDepthManager;
+import javafx.geometry.Pos;
+import javafx.scene.control.Label;
+import javafx.scene.control.SkinBase;
+import javafx.scene.control.Tooltip;
+import javafx.scene.image.ImageView;
+import javafx.scene.layout.BorderPane;
+import javafx.scene.layout.HBox;
+import javafx.scene.layout.VBox;
+import org.jackhuang.hmcl.auth.authlibinjector.AuthlibInjectorAccount;
+import org.jackhuang.hmcl.auth.authlibinjector.AuthlibInjectorServer;
+import org.jackhuang.hmcl.setting.Theme;
+import org.jackhuang.hmcl.task.Schedulers;
+import org.jackhuang.hmcl.task.Task;
+import org.jackhuang.hmcl.ui.FXUtils;
+import org.jackhuang.hmcl.ui.SVG;
+import org.jackhuang.hmcl.ui.construct.SpinnerPane;
+import org.jackhuang.hmcl.util.javafx.BindingMapping;
+
+import static org.jackhuang.hmcl.ui.FXUtils.runInFX;
+import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
+
+public class AccountListItemSkin extends SkinBase<AccountListItem> {
+
+    public AccountListItemSkin(AccountListItem skinnable) {
+        super(skinnable);
+
+        BorderPane root = new BorderPane();
+
+        JFXRadioButton chkSelected = new JFXRadioButton() {
+            @Override
+            public void fire() {
+                skinnable.fire();
+            }
+        };
+        BorderPane.setAlignment(chkSelected, Pos.CENTER);
+        chkSelected.selectedProperty().bind(skinnable.selectedProperty());
+        root.setLeft(chkSelected);
+
+        HBox center = new HBox();
+        center.setSpacing(8);
+        center.setAlignment(Pos.CENTER_LEFT);
+
+        ImageView imageView = new ImageView();
+        FXUtils.limitSize(imageView, 32, 32);
+        imageView.imageProperty().bind(skinnable.imageProperty());
+
+        Label title = new Label();
+        title.getStyleClass().add("title");
+        title.textProperty().bind(skinnable.titleProperty());
+        Label subtitle = new Label();
+        subtitle.getStyleClass().add("subtitle");
+        subtitle.textProperty().bind(skinnable.subtitleProperty());
+        if (skinnable.getAccount() instanceof AuthlibInjectorAccount) {
+            Tooltip tooltip = new Tooltip();
+            AuthlibInjectorServer server = ((AuthlibInjectorAccount) skinnable.getAccount()).getServer();
+            tooltip.textProperty().bind(BindingMapping.of(server, AuthlibInjectorServer::toString));
+            FXUtils.installSlowTooltip(subtitle, tooltip);
+        }
+        VBox item = new VBox(title, subtitle);
+        item.getStyleClass().add("two-line-list-item");
+        BorderPane.setAlignment(item, Pos.CENTER);
+
+        center.getChildren().setAll(imageView, item);
+        root.setCenter(center);
+
+        HBox right = new HBox();
+        right.setAlignment(Pos.CENTER_RIGHT);
+
+        JFXButton btnRefresh = new JFXButton();
+        SpinnerPane spinnerRefresh = new SpinnerPane();
+        btnRefresh.setOnMouseClicked(e -> {
+            spinnerRefresh.showSpinner();
+            skinnable.refreshAsync()
+                    .whenComplete(ex -> spinnerRefresh.hideSpinner())
+                    .start();
+        });
+        btnRefresh.getStyleClass().add("toggle-icon4");
+        btnRefresh.setGraphic(SVG.refresh(Theme.blackFillBinding(), -1, -1));
+        runInFX(() -> FXUtils.installFastTooltip(btnRefresh, i18n("button.refresh")));
+        spinnerRefresh.setContent(btnRefresh);
+        right.getChildren().add(spinnerRefresh);
+
+        JFXButton btnUpload = new JFXButton();
+        SpinnerPane spinnerUpload = new SpinnerPane();
+        btnUpload.setOnMouseClicked(e -> {
+            Task<?> uploadTask = skinnable.uploadSkin();
+            if (uploadTask != null) {
+                spinnerUpload.showSpinner();
+                uploadTask
+                        .whenComplete(Schedulers.javafx(), ex -> spinnerUpload.hideSpinner())
+                        .start();
+            }
+        });
+        btnUpload.getStyleClass().add("toggle-icon4");
+        btnUpload.setGraphic(SVG.hanger(Theme.blackFillBinding(), -1, -1));
+        runInFX(() -> FXUtils.installFastTooltip(btnUpload, i18n("account.skin.upload")));
+        spinnerUpload.managedProperty().bind(spinnerUpload.visibleProperty());
+        spinnerUpload.visibleProperty().bind(skinnable.canUploadSkin());
+        spinnerUpload.setContent(btnUpload);
+        spinnerUpload.getStyleClass().add("small-spinner-pane");
+        right.getChildren().add(spinnerUpload);
+
+        JFXButton btnRemove = new JFXButton();
+        btnRemove.setOnMouseClicked(e -> skinnable.remove());
+        btnRemove.getStyleClass().add("toggle-icon4");
+        BorderPane.setAlignment(btnRemove, Pos.CENTER);
+        btnRemove.setGraphic(SVG.delete(Theme.blackFillBinding(), -1, -1));
+        runInFX(() -> FXUtils.installFastTooltip(btnRemove, i18n("button.delete")));
+        right.getChildren().add(btnRemove);
+        root.setRight(right);
+
+        root.getStyleClass().add("card");
+        root.setStyle("-fx-padding: 8 8 8 0;");
+        JFXDepthManager.setDepth(root, 1);
+
+        getChildren().setAll(root);
+    }
+}
@@ -1,6 +1,6 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
@@ -13,9 +13,9 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
-package org.jackhuang.hmcl.ui;
+package org.jackhuang.hmcl.ui.account;

 import com.jfoenix.controls.JFXPasswordField;
 import com.jfoenix.controls.JFXProgressBar;
@@ -27,17 +27,20 @@ import org.jackhuang.hmcl.auth.AuthInfo;
 import org.jackhuang.hmcl.auth.NoSelectedCharacterException;
 import org.jackhuang.hmcl.task.Schedulers;
 import org.jackhuang.hmcl.task.Task;
+import org.jackhuang.hmcl.ui.FXUtils;
 import org.jackhuang.hmcl.ui.construct.DialogCloseEvent;

 import java.util.function.Consumer;
+import java.util.logging.Level;
+
+import static org.jackhuang.hmcl.util.Logging.LOG;

 public class AccountLoginPane extends StackPane {
    private final Account oldAccount;
    private final Consumer<AuthInfo> success;
    private final Runnable failed;

-    @FXML
-    private Label lblUsername;
+    @FXML private Label lblUsername;
    @FXML private JFXPasswordField txtPassword;
    @FXML private Label lblCreationWarning;
    @FXML private JFXProgressBar progressBar;
@@ -58,25 +61,20 @@ public class AccountLoginPane extends StackPane {
        String password = txtPassword.getText();
        progressBar.setVisible(true);
        lblCreationWarning.setText("");
-        Task.ofResult("login", () -> {
-            try {
-                return oldAccount.logInWithPassword(password);
-            } catch (Exception e) {
-                return e;
-            }
-        }).subscribe(Schedulers.javafx(), variable -> {
-            Object account = variable.get("login");
-            if (account instanceof AuthInfo) {
-                success.accept(((AuthInfo) account));
-                fireEvent(new DialogCloseEvent());
-            } else if (account instanceof NoSelectedCharacterException) {
-                fireEvent(new DialogCloseEvent());
-            } else if (account instanceof Exception) {
-                lblCreationWarning.setText(AddAccountPane.accountException((Exception) account));
-            }
-
-            progressBar.setVisible(false);
-        });
+        Task.supplyAsync(() -> oldAccount.logInWithPassword(password))
+                .whenComplete(Schedulers.javafx(), authInfo -> {
+                    success.accept(authInfo);
+                    fireEvent(new DialogCloseEvent());
+                    progressBar.setVisible(false);
+                }, e -> {
+                    LOG.log(Level.INFO, "Failed to login with password: " + oldAccount, e);
+                    if (e instanceof NoSelectedCharacterException) {
+                        fireEvent(new DialogCloseEvent());
+                    } else {
+                        lblCreationWarning.setText(AddAccountPane.accountException(e));
+                    }
+                    progressBar.setVisible(false);
+                }).start();
    }

    @FXML
@@ -1,6 +1,6 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2017  huangyuhui <huanghongxun2008@126.com>
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2021  huangyuhui <huanghongxun2008@126.com> and contributors
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
@@ -13,51 +13,54 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
-package org.jackhuang.hmcl.ui;
-
-import com.jfoenix.concurrency.JFXUtilities;
-import com.jfoenix.controls.*;
+package org.jackhuang.hmcl.ui.account;

+import com.jfoenix.controls.JFXButton;
+import com.jfoenix.controls.JFXComboBox;
+import com.jfoenix.controls.JFXPasswordField;
+import com.jfoenix.controls.JFXTextField;
+import javafx.application.Platform;
 import javafx.beans.binding.Bindings;
+import javafx.beans.property.ListProperty;
 import javafx.beans.property.ReadOnlyObjectProperty;
+import javafx.beans.property.SimpleListProperty;
+import javafx.collections.FXCollections;
 import javafx.fxml.FXML;
 import javafx.geometry.Pos;
 import javafx.scene.control.Hyperlink;
 import javafx.scene.control.Label;
-import javafx.scene.image.Image;
 import javafx.scene.image.ImageView;
 import javafx.scene.layout.BorderPane;
 import javafx.scene.layout.HBox;
 import javafx.scene.layout.StackPane;
-
 import org.jackhuang.hmcl.auth.*;
+import org.jackhuang.hmcl.auth.authlibinjector.AuthlibInjectorDownloadException;
 import org.jackhuang.hmcl.auth.authlibinjector.AuthlibInjectorServer;
 import org.jackhuang.hmcl.auth.yggdrasil.GameProfile;
 import org.jackhuang.hmcl.auth.yggdrasil.RemoteAuthenticationException;
-import org.jackhuang.hmcl.auth.yggdrasil.YggdrasilAccount;
-import org.jackhuang.hmcl.game.AccountHelper;
+import org.jackhuang.hmcl.auth.yggdrasil.YggdrasilService;
+import org.jackhuang.hmcl.game.TexturesLoader;
 import org.jackhuang.hmcl.setting.Accounts;
 import org.jackhuang.hmcl.task.Schedulers;
 import org.jackhuang.hmcl.task.Task;
-import org.jackhuang.hmcl.ui.construct.AdvancedListBox;
-import org.jackhuang.hmcl.ui.construct.DialogCloseEvent;
-import org.jackhuang.hmcl.ui.construct.IconedItem;
-import org.jackhuang.hmcl.ui.construct.SpinnerPane;
-import org.jackhuang.hmcl.ui.construct.Validator;
-import org.jackhuang.hmcl.util.Constants;
-import org.jackhuang.hmcl.util.Logging;
+import org.jackhuang.hmcl.ui.Controllers;
+import org.jackhuang.hmcl.ui.FXUtils;
+import org.jackhuang.hmcl.ui.construct.*;
+import org.jackhuang.hmcl.util.javafx.BindingMapping;
+import org.jackhuang.hmcl.util.skin.InvalidSkinException;

+import java.util.ArrayList;
 import java.util.List;
+import java.util.Map;
 import java.util.concurrent.CountDownLatch;
-import java.util.logging.Level;

+import static java.util.Collections.emptyList;
+import static java.util.Collections.unmodifiableList;
 import static java.util.Objects.requireNonNull;
 import static org.jackhuang.hmcl.setting.ConfigHolder.config;
-import static org.jackhuang.hmcl.ui.FXUtils.jfxListCellFactory;
-import static org.jackhuang.hmcl.ui.FXUtils.onInvalidating;
-import static org.jackhuang.hmcl.ui.FXUtils.stringConverter;
+import static org.jackhuang.hmcl.ui.FXUtils.*;
 import static org.jackhuang.hmcl.util.i18n.I18n.i18n;

 public class AddAccountPane extends StackPane {
@@ -66,13 +69,17 @@ public class AddAccountPane extends StackPane {
    @FXML private JFXPasswordField txtPassword;
    @FXML private Label lblCreationWarning;
    @FXML private Label lblPassword;
+    @FXML private Label lblUsername;
    @FXML private JFXComboBox<AccountFactory<?>> cboType;
    @FXML private JFXComboBox<AuthlibInjectorServer> cboServers;
    @FXML private Label lblInjectorServer;
-    @FXML private Hyperlink linkManageInjectorServers;
-    @FXML private JFXDialogLayout layout;
    @FXML private JFXButton btnAccept;
+    @FXML private JFXButton btnAddServer;
+    @FXML private JFXButton btnManageServer;
    @FXML private SpinnerPane acceptPane;
+    @FXML private HBox linksContainer;
+
+    private ListProperty<Hyperlink> links = new SimpleListProperty<>();

    public AddAccountPane() {
        FXUtils.loadFXML(this, "/assets/fxml/account-add.fxml");
@@ -80,43 +87,108 @@ public class AddAccountPane extends StackPane {
        cboServers.setCellFactory(jfxListCellFactory(server -> new TwoLineListItem(server.getName(), server.getUrl())));
        cboServers.setConverter(stringConverter(AuthlibInjectorServer::getName));
        Bindings.bindContent(cboServers.getItems(), config().getAuthlibInjectorServers());
-        cboServers.getItems().addListener(onInvalidating(this::selectDefaultServer));
-        selectDefaultServer();
+        cboServers.getItems().addListener(onInvalidating(this::resetServerSelection));
+        resetServerSelection();

-        cboType.getItems().setAll(Accounts.FACTORY_OFFLINE, Accounts.FACTORY_YGGDRASIL, Accounts.FACTORY_AUTHLIB_INJECTOR);
-        cboType.setConverter(stringConverter(Accounts::getAccountTypeName));
-        cboType.getSelectionModel().select(0);
+        cboType.getItems().setAll(Accounts.FACTORIES);
+        cboType.setConverter(stringConverter(Accounts::getLocalizedLoginTypeName));
+        // try selecting the preferred login type
+        cboType.getSelectionModel().select(
+                cboType.getItems().stream()
+                        .filter(type -> Accounts.getLoginType(type).equals(config().getPreferredLoginType()))
+                        .findFirst()
+                        .orElse(Accounts.FACTORY_OFFLINE));
+
+        btnAddServer.visibleProperty().bind(cboServers.visibleProperty());
+        btnManageServer.visibleProperty().bind(cboServers.visibleProperty());
+
+        cboServers.getItems().addListener(onInvalidating(this::checkIfNoServer));
+        checkIfNoServer();

        ReadOnlyObjectProperty<AccountFactory<?>> loginType = cboType.getSelectionModel().selectedItemProperty();

-        txtPassword.visibleProperty().bind(loginType.isNotEqualTo(Accounts.FACTORY_OFFLINE));
+        // remember the last used login type
+        loginType.addListener((observable, oldValue, newValue) -> config().setPreferredLoginType(Accounts.getLoginType(newValue)));
+
+        txtUsername.visibleProperty().bind(Bindings.createBooleanBinding(() -> loginType.get().getLoginType().requiresUsername, loginType));
+        lblUsername.visibleProperty().bind(txtUsername.visibleProperty());
+        txtPassword.visibleProperty().bind(Bindings.createBooleanBinding(() -> loginType.get().getLoginType().requiresPassword, loginType));
        lblPassword.visibleProperty().bind(txtPassword.visibleProperty());

        cboServers.visibleProperty().bind(loginType.isEqualTo(Accounts.FACTORY_AUTHLIB_INJECTOR));
        lblInjectorServer.visibleProperty().bind(cboServers.visibleProperty());
-        linkManageInjectorServers.visibleProperty().bind(cboServers.visibleProperty());

-        txtUsername.getValidators().add(new Validator(i18n("input.email"), str -> !txtPassword.isVisible() || str.contains("@")));
+        txtUsername.getValidators().add(new Validator(i18n("input.email"), this::validateUsername));

        btnAccept.disableProperty().bind(Bindings.createBooleanBinding(
                () -> !( // consider the opposite situation: input is valid
-                        txtUsername.validate() &&
+                        (!txtUsername.isVisible() || txtUsername.validate()) &&
                        // invisible means the field is not needed, neither should it be validated
                        (!txtPassword.isVisible() || txtPassword.validate()) &&
                        (!cboServers.isVisible() || cboServers.getSelectionModel().getSelectedItem() != null)
                ),
-                txtUsername.textProperty(),
-                txtPassword.textProperty(), txtPassword.visibleProperty(),
-                cboServers.getSelectionModel().selectedItemProperty(), cboServers.visibleProperty()));
+                txtUsername.textProperty(), txtPassword.textProperty(),
+                loginType, cboServers.getSelectionModel().selectedItemProperty(),
+                txtPassword.visibleProperty(), cboServers.visibleProperty()));
+
+        // authlib-injector links
+        links.bind(BindingMapping.of(cboServers.getSelectionModel().selectedItemProperty())
+                .map(AddAccountPane::createHyperlinks)
+                .map(FXCollections::observableList));
+        Bindings.bindContent(linksContainer.getChildren(), links);
+        linksContainer.visibleProperty().bind(cboServers.visibleProperty());
    }

-    /**
-     * Selects the first server if no server is selected.
-     */
-    private void selectDefaultServer() {
-        if (!cboServers.getItems().isEmpty() && cboServers.getSelectionModel().isEmpty()) {
-            cboServers.getSelectionModel().select(0);
+    private boolean validateUsername(String username) {
+        AccountFactory<?> loginType = cboType.getSelectionModel().getSelectedItem();
+        if (loginType == Accounts.FACTORY_OFFLINE) {
+            return true;
+        } else if (loginType == Accounts.FACTORY_AUTHLIB_INJECTOR) {
+            AuthlibInjectorServer server = cboServers.getSelectionModel().getSelectedItem();
+            if (server != null && server.isNonEmailLogin()) {
+                return true;
+            }
        }
+
+        return username.contains("@");
+    }
+
+    private static final String[] ALLOWED_LINKS = { "register" };
+
+    public static List<Hyperlink> createHyperlinks(AuthlibInjectorServer server) {
+        if (server == null) {
+            return emptyList();
+        }
+
+        Map<String, String> links = server.getLinks();
+        List<Hyperlink> result = new ArrayList<>();
+        for (String key : ALLOWED_LINKS) {
+            String value = links.get(key);
+            if (value != null) {
+                Hyperlink link = new Hyperlink(i18n("account.injector.link." + key));
+                FXUtils.installSlowTooltip(link, value);
+                link.setOnAction(e -> FXUtils.openLink(value));
+                result.add(link);
+            }
+        }
+        return unmodifiableList(result);
+    }
+
+    private void resetServerSelection() {
+        if (!cboServers.getItems().isEmpty()) {
+            Platform.runLater(() -> {
+                // the selection will not be updated as expected
+                // if we call it immediately
+                cboServers.getSelectionModel().selectFirst();
+            });
+        }
+    }
+
+    private void checkIfNoServer() {
+        if (cboServers.getItems().isEmpty())
+            cboServers.getStyleClass().setAll("jfx-combo-box-warning");
+        else
+            cboServers.getStyleClass().setAll("jfx-combo-box");
    }

    /**
@@ -144,10 +216,8 @@ public class AddAccountPane extends StackPane {
        AccountFactory<?> factory = cboType.getSelectionModel().getSelectedItem();
        Object additionalData = getAuthAdditionalData();

-        Task.ofResult("create_account", () -> factory.create(new Selector(), username, password, additionalData))
-                .finalized(Schedulers.javafx(), variables -> {
-
-                    Account account = variables.get("create_account");
+        Task.supplyAsync(() -> factory.create(new Selector(), username, password, additionalData))
+                .whenComplete(Schedulers.javafx(), account -> {
                    int oldIndex = Accounts.getAccounts().indexOf(account);
                    if (oldIndex == -1) {
                        Accounts.getAccounts().add(account);
@@ -185,14 +255,20 @@ public class AddAccountPane extends StackPane {
        Controllers.navigate(Controllers.getServersPage());
    }

-    private class Selector extends BorderPane implements CharacterSelector {
+    @FXML
+    private void onAddInjecterServer() {
+        Controllers.dialog(new AddAuthlibInjectorServerPane());
+    }
+
+    private static class Selector extends BorderPane implements CharacterSelector {
+
        private final AdvancedListBox listBox = new AdvancedListBox();
        private final JFXButton cancel = new JFXButton();

        private final CountDownLatch latch = new CountDownLatch(1);
        private GameProfile selectedProfile = null;

-        {
+        public Selector() {
            setStyle("-fx-padding: 8px;");

            cancel.setText(i18n("button.cancel"));
@@ -210,50 +286,35 @@ public class AddAccountPane extends StackPane {
        }

        @Override
-        public GameProfile select(Account account, List<GameProfile> names) throws NoSelectedCharacterException {
-            if (!(account instanceof YggdrasilAccount))
-                return CharacterSelector.DEFAULT.select(account, names);
-            YggdrasilAccount yggdrasilAccount = (YggdrasilAccount) account;
+        public GameProfile select(YggdrasilService service, List<GameProfile> profiles) throws NoSelectedCharacterException {
+            Platform.runLater(() -> {
+                for (GameProfile profile : profiles) {
+                    ImageView portraitView = new ImageView();
+                    portraitView.setSmooth(false);
+                    portraitView.imageProperty().bind(TexturesLoader.fxAvatarBinding(service, profile.getId(), 32));
+                    FXUtils.limitSize(portraitView, 32, 32);

-            for (GameProfile profile : names) {
-                Image image;
-                try {
-                    image = AccountHelper.getSkinImmediately(yggdrasilAccount, profile, 4);
-                } catch (Exception e) {
-                    Logging.LOG.log(Level.WARNING, "Failed to get skin for " + profile.getName(), e);
-                    image = null;
+                    IconedItem accountItem = new IconedItem(portraitView, profile.getName());
+                    accountItem.setOnMouseClicked(e -> {
+                        selectedProfile = profile;
+                        latch.countDown();
+                    });
+                    listBox.add(accountItem);
                }
-                ImageView portraitView = new ImageView();
-                portraitView.setSmooth(false);
-                if (image == null) {
-                    portraitView.setImage(Constants.DEFAULT_ICON.get());
-                } else {
-                    portraitView.setImage(image);
-                    portraitView.setViewport(AccountHelper.getViewport(4));
-                }
-                FXUtils.limitSize(portraitView, 32, 32);
-
-                IconedItem accountItem = new IconedItem(portraitView, profile.getName());
-                accountItem.setOnMouseClicked(e -> {
-                    selectedProfile = profile;
-                    latch.countDown();
-                });
-                listBox.add(accountItem);
-            }
-
-            JFXUtilities.runInFX(() -> Controllers.dialog(this));
+                Controllers.dialog(this);
+            });

            try {
                latch.await();

                if (selectedProfile == null)
-                    throw new NoSelectedCharacterException(account);
+                    throw new NoSelectedCharacterException();

                return selectedProfile;
            } catch (InterruptedException ignore) {
-                throw new NoSelectedCharacterException(account);
+                throw new NoSelectedCharacterException();
            } finally {
-                JFXUtilities.runInFX(() -> Selector.this.fireEvent(new DialogCloseEvent()));
+                runInFX(() -> Selector.this.fireEvent(new DialogCloseEvent()));
            }
        }
    }
@@ -275,8 +336,18 @@ public class AddAccountPane extends StackPane {
                    return i18n("account.failed.invalid_token");
                else if (remoteMessage.contains("Invalid username or password"))
                    return i18n("account.failed.invalid_password");
+                else
+                    return remoteMessage;
            }
            return exception.getMessage();
+        } else if (exception instanceof AuthlibInjectorDownloadException) {
+            return i18n("account.failed.injector_download_failure");
+        } else if (exception instanceof CharacterDeletedException) {
+            return i18n("account.failed.character_deleted");
+        } else if (exception instanceof InvalidSkinException) {
+            return i18n("account.skin.invalid_skin");
+        } else if (exception.getClass() == AuthenticationException.class) {
+            return exception.getLocalizedMessage();
        } else {
            return exception.getClass().getName() + ": " + exception.getLocalizedMessage();
        }
@@ -1,6 +1,6 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2021  huangyuhui <huanghongxun2008@126.com> and contributors
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
@@ -13,37 +13,37 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
-package org.jackhuang.hmcl.ui;
-
-import static org.jackhuang.hmcl.ui.FXUtils.loadFXML;
-import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
-
-import java.io.IOException;
-import org.jackhuang.hmcl.auth.authlibinjector.AuthlibInjectorServer;
-import org.jackhuang.hmcl.task.Schedulers;
-import org.jackhuang.hmcl.task.Task;
-import org.jackhuang.hmcl.ui.animation.ContainerAnimations;
-import org.jackhuang.hmcl.ui.animation.TransitionHandler;
-import org.jackhuang.hmcl.ui.construct.DialogCloseEvent;
-import org.jackhuang.hmcl.ui.construct.SpinnerPane;
-import org.jackhuang.hmcl.util.NetworkUtils;
+package org.jackhuang.hmcl.ui.account;

 import com.jfoenix.controls.JFXButton;
 import com.jfoenix.controls.JFXDialogLayout;
 import com.jfoenix.controls.JFXTextField;
-
-import javafx.beans.binding.Bindings;
 import javafx.fxml.FXML;
 import javafx.scene.control.Label;
 import javafx.scene.layout.StackPane;
+import org.jackhuang.hmcl.auth.authlibinjector.AuthlibInjectorServer;
+import org.jackhuang.hmcl.task.Schedulers;
+import org.jackhuang.hmcl.task.Task;
+import org.jackhuang.hmcl.ui.animation.ContainerAnimations;
+import org.jackhuang.hmcl.ui.animation.TransitionPane;
+import org.jackhuang.hmcl.ui.construct.DialogAware;
+import org.jackhuang.hmcl.ui.construct.DialogCloseEvent;
+import org.jackhuang.hmcl.ui.construct.SpinnerPane;
+import org.jackhuang.hmcl.util.io.NetworkUtils;
+
+import java.io.IOException;
+import java.util.logging.Level;

 import static org.jackhuang.hmcl.setting.ConfigHolder.config;
+import static org.jackhuang.hmcl.ui.FXUtils.loadFXML;
+import static org.jackhuang.hmcl.util.Logging.LOG;
+import static org.jackhuang.hmcl.util.i18n.I18n.i18n;

-public class AddAuthlibInjectorServerPane extends StackPane {
+public class AddAuthlibInjectorServerPane extends StackPane implements DialogAware {

-    @FXML private StackPane addServerContainer;
+    @FXML private TransitionPane root;
    @FXML private Label lblServerUrl;
    @FXML private Label lblServerName;
    @FXML private Label lblCreationWarning;
@@ -54,8 +54,6 @@ public class AddAuthlibInjectorServerPane extends StackPane {
    @FXML private SpinnerPane nextPane;
    @FXML private JFXButton btnAddNext;

-    private TransitionHandler transitionHandler;
-
    private AuthlibInjectorServer serverBeingAdded;

    public AddAuthlibInjectorServerPane(String url) {
@@ -66,19 +64,15 @@ public class AddAuthlibInjectorServerPane extends StackPane {

    public AddAuthlibInjectorServerPane() {
        loadFXML(this, "/assets/fxml/authlib-injector-server-add.fxml");
-        transitionHandler = new TransitionHandler(addServerContainer);
-        transitionHandler.setContent(addServerPane, ContainerAnimations.NONE.getAnimationProducer());
+        root.setContent(addServerPane, ContainerAnimations.NONE.getAnimationProducer());

-        btnAddNext.disableProperty().bind(
-                Bindings.createBooleanBinding(txtServerUrl::validate, txtServerUrl.textProperty()).not());
+        btnAddNext.disableProperty().bind(txtServerUrl.textProperty().isEmpty());
        nextPane.hideSpinner();
    }

-    private String fixInputUrl(String url) {
-        if (!url.endsWith("/")) {
-            url += "/";
-        }
-        return url;
+    @Override
+    public void onDialogShown() {
+        txtServerUrl.requestFocus();
    }

    private String resolveFetchExceptionMessage(Throwable exception) {
@@ -101,26 +95,27 @@ public class AddAuthlibInjectorServerPane extends StackPane {

        lblCreationWarning.setText("");

-        String url = fixInputUrl(txtServerUrl.getText());
+        String url = txtServerUrl.getText();

        nextPane.showSpinner();
        addServerPane.setDisable(true);

-        Task.of(() -> {
-            serverBeingAdded = AuthlibInjectorServer.fetchServerInfo(url);
-        }).finalized(Schedulers.javafx(), (variables, isDependentsSucceeded) -> {
+        Task.runAsync(() -> {
+            serverBeingAdded = AuthlibInjectorServer.locateServer(url);
+        }).whenComplete(Schedulers.javafx(), exception -> {
            addServerPane.setDisable(false);
            nextPane.hideSpinner();

-            if (isDependentsSucceeded) {
+            if (exception == null) {
                lblServerName.setText(serverBeingAdded.getName());
                lblServerUrl.setText(serverBeingAdded.getUrl());

                lblServerWarning.setVisible("http".equals(NetworkUtils.toURL(serverBeingAdded.getUrl()).getProtocol()));

-                transitionHandler.setContent(confirmServerPane, ContainerAnimations.SWIPE_LEFT.getAnimationProducer());
+                root.setContent(confirmServerPane, ContainerAnimations.SWIPE_LEFT.getAnimationProducer());
            } else {
-                lblCreationWarning.setText(resolveFetchExceptionMessage(variables.<Exception>get("lastException")));
+                LOG.log(Level.WARNING, "Failed to resolve auth server: " + url, exception);
+                lblCreationWarning.setText(resolveFetchExceptionMessage(exception));
            }
        }).start();

@@ -128,13 +123,13 @@ public class AddAuthlibInjectorServerPane extends StackPane {

    @FXML
    private void onAddPrev() {
-        transitionHandler.setContent(addServerPane, ContainerAnimations.SWIPE_RIGHT.getAnimationProducer());
+        root.setContent(addServerPane, ContainerAnimations.SWIPE_RIGHT.getAnimationProducer());
    }

    @FXML
    private void onAddFinish() {
        if (!config().getAuthlibInjectorServers().contains(serverBeingAdded)) {
-            config().getAuthlibInjectorServers().add(serverBeingAdded);
+            config().getAuthlibInjectorServers().add(0, serverBeingAdded);
        }
        fireEvent(new DialogCloseEvent());
    }
@@ -1,7 +1,7 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
@@ -13,18 +13,21 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
-package org.jackhuang.hmcl.ui;
+package org.jackhuang.hmcl.ui.account;

 import com.jfoenix.controls.JFXButton;
 import com.jfoenix.effects.JFXDepthManager;
+
+import javafx.beans.binding.Bindings;
 import javafx.geometry.Pos;
 import javafx.scene.control.Label;
 import javafx.scene.layout.BorderPane;
 import javafx.scene.layout.VBox;
 import org.jackhuang.hmcl.auth.authlibinjector.AuthlibInjectorServer;
 import org.jackhuang.hmcl.setting.Theme;
+import org.jackhuang.hmcl.ui.SVG;

 import java.util.function.Consumer;

@@ -32,17 +35,17 @@ public final class AuthlibInjectorServerItem extends BorderPane {
    private final AuthlibInjectorServer server;

    private final Label lblServerName = new Label();
-    private final Label lblServerIp = new Label();
+    private final Label lblServerUrl = new Label();

    public AuthlibInjectorServerItem(AuthlibInjectorServer server, Consumer<AuthlibInjectorServerItem> deleteCallback) {
        this.server = server;

        lblServerName.setStyle("-fx-font-size: 15;");
-        lblServerIp.setStyle("-fx-font-size: 10;");
+        lblServerUrl.setStyle("-fx-font-size: 10;");

        VBox center = new VBox();
        BorderPane.setAlignment(center, Pos.CENTER);
-        center.getChildren().addAll(lblServerName, lblServerIp);
+        center.getChildren().addAll(lblServerName, lblServerUrl);
        setCenter(center);

        JFXButton right = new JFXButton();
@@ -54,8 +57,8 @@ public final class AuthlibInjectorServerItem extends BorderPane {

        setStyle("-fx-background-radius: 2; -fx-background-color: white; -fx-padding: 8;");
        JFXDepthManager.setDepth(this, 1);
-        lblServerName.setText(server.getName());
-        lblServerIp.setText(server.getUrl());
+        lblServerName.textProperty().bind(Bindings.createStringBinding(server::getName, server));
+        lblServerUrl.setText(server.getUrl());
    }

    public AuthlibInjectorServer getServer() {
@@ -0,0 +1,56 @@
+/*
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package org.jackhuang.hmcl.ui.account;
+
+import javafx.beans.binding.Bindings;
+import javafx.beans.property.ReadOnlyObjectWrapper;
+import javafx.collections.ObservableList;
+import org.jackhuang.hmcl.auth.authlibinjector.AuthlibInjectorServer;
+import org.jackhuang.hmcl.ui.Controllers;
+import org.jackhuang.hmcl.ui.ListPage;
+import org.jackhuang.hmcl.ui.decorator.DecoratorPage;
+import org.jackhuang.hmcl.util.javafx.MappedObservableList;
+
+import static org.jackhuang.hmcl.setting.ConfigHolder.config;
+import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
+
+public class AuthlibInjectorServersPage extends ListPage<AuthlibInjectorServerItem> implements DecoratorPage {
+    private final ReadOnlyObjectWrapper<State> state = new ReadOnlyObjectWrapper<>(State.fromTitle(i18n("account.injector.manage.title")));
+
+    private final ObservableList<AuthlibInjectorServerItem> serverItems;
+
+    public AuthlibInjectorServersPage() {
+        serverItems = MappedObservableList.create(config().getAuthlibInjectorServers(), this::createServerItem);
+        Bindings.bindContent(itemsProperty(), serverItems);
+    }
+
+    private AuthlibInjectorServerItem createServerItem(AuthlibInjectorServer server) {
+        return new AuthlibInjectorServerItem(server,
+                item -> config().getAuthlibInjectorServers().remove(item.getServer()));
+    }
+
+    @Override
+    public void add() {
+        Controllers.dialog(new AddAuthlibInjectorServerPane());
+    }
+
+    @Override
+    public ReadOnlyObjectWrapper<State> stateProperty() {
+        return state;
+    }
+}
@@ -0,0 +1,72 @@
+/*
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package org.jackhuang.hmcl.ui.account;
+
+import javafx.application.Platform;
+import javafx.stage.Modality;
+import org.jackhuang.hmcl.auth.microsoft.MicrosoftService;
+import org.jackhuang.hmcl.ui.WebStage;
+
+import java.util.concurrent.CompletableFuture;
+import java.util.function.Predicate;
+
+import static org.jackhuang.hmcl.Launcher.COOKIE_MANAGER;
+
+public class MicrosoftAccountLoginStage extends WebStage implements MicrosoftService.WebViewCallback {
+    public static final MicrosoftAccountLoginStage INSTANCE = new MicrosoftAccountLoginStage();
+
+    CompletableFuture<String> future;
+    Predicate<String> urlTester;
+
+    public MicrosoftAccountLoginStage() {
+        super(600, 600);
+        initModality(Modality.APPLICATION_MODAL);
+
+        titleProperty().bind(webEngine.titleProperty());
+
+        webEngine.locationProperty().addListener((observable, oldValue, newValue) -> {
+            if (urlTester != null && urlTester.test(newValue)) {
+                future.complete(newValue);
+                hide();
+            }
+        });
+
+        showingProperty().addListener((observable, oldValue, newValue) -> {
+            if (!newValue) {
+                if (future != null) {
+                    future.completeExceptionally(new InterruptedException());
+                }
+                future = null;
+                urlTester = null;
+            }
+        });
+    }
+
+    @Override
+    public CompletableFuture<String> show(MicrosoftService service, Predicate<String> urlTester, String initialURL) {
+        Platform.runLater(() -> {
+            COOKIE_MANAGER.getCookieStore().removeAll();
+
+            webEngine.load(initialURL);
+            show();
+        });
+        this.future = new CompletableFuture<>();
+        this.urlTester = urlTester;
+        return future;
+    }
+}
@@ -1,7 +1,7 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
@@ -13,7 +13,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl.ui.animation;

@@ -23,7 +23,10 @@ import javafx.util.Duration;

 public interface AnimationHandler {
    Duration getDuration();
+
    Pane getCurrentRoot();
+
    Node getPreviousNode();
+
    Node getCurrentNode();
 }
@@ -1,7 +1,7 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
@@ -13,12 +13,12 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl.ui.animation;

 import javafx.animation.KeyFrame;
-import javafx.util.Duration;
+import org.jetbrains.annotations.Nullable;

 import java.util.List;

@@ -26,4 +26,6 @@ public interface AnimationProducer {
    void init(AnimationHandler handler);

    List<KeyFrame> animate(AnimationHandler handler);
+
+    @Nullable AnimationProducer opposite();
 }
@@ -1,7 +1,7 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright c 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
@@ -13,21 +13,20 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl.ui.animation;

 import javafx.animation.Interpolator;
 import javafx.animation.KeyFrame;
 import javafx.animation.KeyValue;
-import javafx.scene.Node;
 import javafx.util.Duration;
-import org.jackhuang.hmcl.util.Lang;
+import org.jackhuang.hmcl.ui.FXUtils;
+import org.jetbrains.annotations.Nullable;

 import java.util.Arrays;
 import java.util.Collections;
 import java.util.List;
-import java.util.function.BiFunction;
 import java.util.function.Consumer;
 import java.util.function.Function;

@@ -44,6 +43,7 @@ public enum ContainerAnimations {
        c.getCurrentNode().setScaleY(1);
        c.getCurrentNode().setOpacity(1);
    }, c -> Collections.emptyList()),
+
    /**
     * A fade between the old and new view
     */
@@ -52,30 +52,65 @@ public enum ContainerAnimations {
        c.getPreviousNode().setTranslateY(0);
        c.getPreviousNode().setScaleX(1);
        c.getPreviousNode().setScaleY(1);
+        c.getPreviousNode().setOpacity(1);
        c.getCurrentNode().setTranslateX(0);
        c.getCurrentNode().setTranslateY(0);
        c.getCurrentNode().setScaleX(1);
        c.getCurrentNode().setScaleY(1);
+        c.getCurrentNode().setOpacity(0);
    }, c ->
            Arrays.asList(new KeyFrame(Duration.ZERO,
-                            new KeyValue(c.getPreviousNode().opacityProperty(), 1.0D, Interpolator.EASE_BOTH),
-                            new KeyValue(c.getCurrentNode().opacityProperty(), 0.0D, Interpolator.EASE_BOTH)),
+                            new KeyValue(c.getPreviousNode().opacityProperty(), 1, Interpolator.EASE_BOTH),
+                            new KeyValue(c.getCurrentNode().opacityProperty(), 0, Interpolator.EASE_BOTH)),
                    new KeyFrame(c.getDuration(),
-                            new KeyValue(c.getPreviousNode().opacityProperty(), 0.0D, Interpolator.EASE_BOTH),
-                            new KeyValue(c.getCurrentNode().opacityProperty(), 1.0D, Interpolator.EASE_BOTH)))),
+                            new KeyValue(c.getPreviousNode().opacityProperty(), 0, Interpolator.EASE_BOTH),
+                            new KeyValue(c.getCurrentNode().opacityProperty(), 1, Interpolator.EASE_BOTH)))),
+
+    /**
+     * A fade between the old and new view
+     */
+    FADE_IN(c -> {
+        c.getCurrentNode().setTranslateX(0);
+        c.getCurrentNode().setTranslateY(0);
+        c.getCurrentNode().setScaleX(1);
+        c.getCurrentNode().setScaleY(1);
+        c.getCurrentNode().setOpacity(0);
+    }, c ->
+            Arrays.asList(new KeyFrame(Duration.ZERO,
+                            new KeyValue(c.getCurrentNode().opacityProperty(), 0, FXUtils.SINE)),
+                    new KeyFrame(c.getDuration(),
+                            new KeyValue(c.getCurrentNode().opacityProperty(), 1, FXUtils.SINE)))),
+
+    /**
+     * A fade between the old and new view
+     */
+    FADE_OUT(c -> {
+        c.getCurrentNode().setTranslateX(0);
+        c.getCurrentNode().setTranslateY(0);
+        c.getCurrentNode().setScaleX(1);
+        c.getCurrentNode().setScaleY(1);
+        c.getCurrentNode().setOpacity(1);
+    }, c ->
+            Arrays.asList(new KeyFrame(Duration.ZERO,
+                            new KeyValue(c.getCurrentNode().opacityProperty(), 1, FXUtils.SINE)),
+                    new KeyFrame(c.getDuration(),
+                            new KeyValue(c.getCurrentNode().opacityProperty(), 0, FXUtils.SINE)))),
    /**
     * A zoom effect
     */
    ZOOM_IN(c -> {
        c.getPreviousNode().setTranslateX(0);
        c.getPreviousNode().setTranslateY(0);
+        c.getPreviousNode().setScaleX(1);
+        c.getPreviousNode().setScaleY(1);
+        c.getPreviousNode().setOpacity(1);
        c.getCurrentNode().setTranslateX(0);
        c.getCurrentNode().setTranslateY(0);
    }, c ->
            Arrays.asList(new KeyFrame(Duration.ZERO,
                            new KeyValue(c.getPreviousNode().scaleXProperty(), 1, Interpolator.EASE_BOTH),
                            new KeyValue(c.getPreviousNode().scaleYProperty(), 1, Interpolator.EASE_BOTH),
-                            new KeyValue(c.getPreviousNode().opacityProperty(), 1.0D, Interpolator.EASE_BOTH)),
+                            new KeyValue(c.getPreviousNode().opacityProperty(), 1, Interpolator.EASE_BOTH)),
                    new KeyFrame(c.getDuration(),
                            new KeyValue(c.getPreviousNode().scaleXProperty(), 4, Interpolator.EASE_BOTH),
                            new KeyValue(c.getPreviousNode().scaleYProperty(), 4, Interpolator.EASE_BOTH),
@@ -86,13 +121,16 @@ public enum ContainerAnimations {
    ZOOM_OUT(c -> {
        c.getPreviousNode().setTranslateX(0);
        c.getPreviousNode().setTranslateY(0);
+        c.getPreviousNode().setScaleX(1);
+        c.getPreviousNode().setScaleY(1);
+        c.getPreviousNode().setOpacity(1);
        c.getCurrentNode().setTranslateX(0);
        c.getCurrentNode().setTranslateY(0);
    }, c ->
            (Arrays.asList(new KeyFrame(Duration.ZERO,
                            new KeyValue(c.getPreviousNode().scaleXProperty(), 1, Interpolator.EASE_BOTH),
                            new KeyValue(c.getPreviousNode().scaleYProperty(), 1, Interpolator.EASE_BOTH),
-                            new KeyValue(c.getPreviousNode().opacityProperty(), 1.0D, Interpolator.EASE_BOTH)),
+                            new KeyValue(c.getPreviousNode().opacityProperty(), 1, Interpolator.EASE_BOTH)),
                    new KeyFrame(c.getDuration(),
                            new KeyValue(c.getPreviousNode().scaleXProperty(), 0, Interpolator.EASE_BOTH),
                            new KeyValue(c.getPreviousNode().scaleYProperty(), 0, Interpolator.EASE_BOTH),
@@ -104,9 +142,11 @@ public enum ContainerAnimations {
        c.getPreviousNode().setScaleX(1);
        c.getPreviousNode().setScaleY(1);
        c.getPreviousNode().setOpacity(0);
+        c.getPreviousNode().setTranslateX(0);
        c.getCurrentNode().setScaleX(1);
        c.getCurrentNode().setScaleY(1);
        c.getCurrentNode().setOpacity(1);
+        c.getCurrentNode().setTranslateX(c.getCurrentRoot().getWidth());
    }, c ->
            Arrays.asList(new KeyFrame(Duration.ZERO,
                            new KeyValue(c.getCurrentNode().translateXProperty(), c.getCurrentRoot().getWidth(), Interpolator.EASE_BOTH),
@@ -122,18 +162,63 @@ public enum ContainerAnimations {
        c.getPreviousNode().setScaleX(1);
        c.getPreviousNode().setScaleY(1);
        c.getPreviousNode().setOpacity(0);
+        c.getPreviousNode().setTranslateX(0);
        c.getCurrentNode().setScaleX(1);
        c.getCurrentNode().setScaleY(1);
        c.getCurrentNode().setOpacity(1);
+        c.getCurrentNode().setTranslateX(-c.getCurrentRoot().getWidth());
    }, c ->
            Arrays.asList(new KeyFrame(Duration.ZERO,
                            new KeyValue(c.getCurrentNode().translateXProperty(), -c.getCurrentRoot().getWidth(), Interpolator.EASE_BOTH),
                            new KeyValue(c.getPreviousNode().translateXProperty(), 0, Interpolator.EASE_BOTH)),
                    new KeyFrame(c.getDuration(),
                            new KeyValue(c.getCurrentNode().translateXProperty(), 0, Interpolator.EASE_BOTH),
-                            new KeyValue(c.getPreviousNode().translateXProperty(), c.getCurrentRoot().getWidth(), Interpolator.EASE_BOTH))));
+                            new KeyValue(c.getPreviousNode().translateXProperty(), c.getCurrentRoot().getWidth(), Interpolator.EASE_BOTH)))),
+
+    SWIPE_LEFT_FADE_SHORT(c -> {
+        c.getPreviousNode().setScaleX(1);
+        c.getPreviousNode().setScaleY(1);
+        c.getPreviousNode().setOpacity(0);
+        c.getPreviousNode().setTranslateX(0);
+        c.getCurrentNode().setScaleX(1);
+        c.getCurrentNode().setScaleY(1);
+        c.getCurrentNode().setOpacity(1);
+        c.getCurrentNode().setTranslateX(c.getCurrentRoot().getWidth());
+    }, c ->
+            Arrays.asList(new KeyFrame(Duration.ZERO,
+                            new KeyValue(c.getCurrentNode().translateXProperty(), 50, Interpolator.EASE_BOTH),
+                            new KeyValue(c.getPreviousNode().translateXProperty(), 0, Interpolator.EASE_BOTH),
+                            new KeyValue(c.getCurrentNode().opacityProperty(), 0, Interpolator.EASE_BOTH),
+                            new KeyValue(c.getPreviousNode().opacityProperty(), 1, Interpolator.EASE_BOTH)),
+                    new KeyFrame(c.getDuration(),
+                            new KeyValue(c.getCurrentNode().translateXProperty(), 0, Interpolator.EASE_BOTH),
+                            new KeyValue(c.getPreviousNode().translateXProperty(), -50, Interpolator.EASE_BOTH),
+                            new KeyValue(c.getCurrentNode().opacityProperty(), 1, Interpolator.EASE_BOTH),
+                            new KeyValue(c.getPreviousNode().opacityProperty(), 0, Interpolator.EASE_BOTH)))),
+
+    SWIPE_RIGHT_FADE_SHORT(c -> {
+        c.getPreviousNode().setScaleX(1);
+        c.getPreviousNode().setScaleY(1);
+        c.getPreviousNode().setOpacity(0);
+        c.getPreviousNode().setTranslateX(0);
+        c.getCurrentNode().setScaleX(1);
+        c.getCurrentNode().setScaleY(1);
+        c.getCurrentNode().setOpacity(1);
+        c.getCurrentNode().setTranslateX(c.getCurrentRoot().getWidth());
+    }, c ->
+            Arrays.asList(new KeyFrame(Duration.ZERO,
+                            new KeyValue(c.getCurrentNode().translateXProperty(), -50, Interpolator.EASE_BOTH),
+                            new KeyValue(c.getPreviousNode().translateXProperty(), 0, Interpolator.EASE_BOTH),
+                            new KeyValue(c.getCurrentNode().opacityProperty(), 0, Interpolator.EASE_BOTH),
+                            new KeyValue(c.getPreviousNode().opacityProperty(), 1, Interpolator.EASE_BOTH)),
+                    new KeyFrame(c.getDuration(),
+                            new KeyValue(c.getCurrentNode().translateXProperty(), 0, Interpolator.EASE_BOTH),
+                            new KeyValue(c.getPreviousNode().translateXProperty(), 50, Interpolator.EASE_BOTH),
+                            new KeyValue(c.getCurrentNode().opacityProperty(), 1, Interpolator.EASE_BOTH),
+                            new KeyValue(c.getPreviousNode().opacityProperty(), 0, Interpolator.EASE_BOTH))));

    private final AnimationProducer animationProducer;
+    private ContainerAnimations opposite;

    ContainerAnimations(Consumer<AnimationHandler> init, Function<AnimationHandler, List<KeyFrame>> animationProducer) {
        this.animationProducer = new AnimationProducer() {
@@ -146,10 +231,30 @@ public enum ContainerAnimations {
            public List<KeyFrame> animate(AnimationHandler handler) {
                return animationProducer.apply(handler);
            }
+
+            @Override
+            public @Nullable AnimationProducer opposite() {
+                return opposite != null ? opposite.getAnimationProducer() : null;
+            }
        };
    }

    public AnimationProducer getAnimationProducer() {
        return animationProducer;
    }
+
+    public ContainerAnimations getOpposite() {
+        return opposite;
+    }
+
+    static {
+        NONE.opposite = NONE;
+        FADE.opposite = FADE;
+        SWIPE_LEFT.opposite = SWIPE_RIGHT;
+        SWIPE_RIGHT.opposite = SWIPE_LEFT;
+        FADE_IN.opposite = FADE_OUT;
+        FADE_OUT.opposite = FADE_IN;
+        ZOOM_IN.opposite = ZOOM_OUT;
+        ZOOM_OUT.opposite = ZOOM_IN;
+    }
 }
@@ -1,7 +1,7 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
@@ -13,7 +13,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl.ui.animation;

@@ -21,29 +21,17 @@ import javafx.animation.KeyFrame;
 import javafx.animation.Timeline;
 import javafx.application.Platform;
 import javafx.scene.Node;
-import javafx.scene.Parent;
 import javafx.scene.layout.StackPane;
-import javafx.scene.shape.Rectangle;
 import javafx.util.Duration;
+import org.jackhuang.hmcl.ui.FXUtils;

-public final class TransitionHandler implements AnimationHandler {
-    private final StackPane view;
-    private Timeline animation;
+public class TransitionPane extends StackPane implements AnimationHandler {
    private Duration duration;
    private Node previousNode, currentNode;

-    /**
-     * @param view A stack pane that contains another control that is {@link Parent}
-     */
-    public TransitionHandler(StackPane view) {
-        this.view = view;
-        currentNode = view.getChildren().stream().findFirst().orElse(null);
-
-        // prevent content overflow
-        Rectangle clip = new Rectangle();
-        clip.widthProperty().bind(view.widthProperty());
-        clip.heightProperty().bind(view.heightProperty());
-        view.setClip(clip);
+    {
+        currentNode = getChildren().stream().findFirst().orElse(null);
+        FXUtils.setOverflowHidden(this);
    }

    @Override
@@ -58,7 +46,7 @@ public final class TransitionHandler implements AnimationHandler {

    @Override
    public StackPane getCurrentRoot() {
-        return view;
+        return this;
    }

    @Override
@@ -67,35 +55,30 @@ public final class TransitionHandler implements AnimationHandler {
    }

    public void setContent(Node newView, AnimationProducer transition) {
-        setContent(newView, transition, Duration.millis(320));
+        setContent(newView, transition, Duration.millis(160));
    }

    public void setContent(Node newView, AnimationProducer transition, Duration duration) {
        this.duration = duration;

-        Timeline prev = animation;
-        if (prev != null)
-            prev.stop();
-
        updateContent(newView);

        transition.init(this);

        // runLater or "init" will not work
        Platform.runLater(() -> {
-            Timeline nowAnimation = new Timeline();
-            nowAnimation.getKeyFrames().addAll(transition.animate(this));
-            nowAnimation.getKeyFrames().add(new KeyFrame(duration, e -> {
-                view.setMouseTransparent(false);
-                view.getChildren().remove(previousNode);
+            Timeline newAnimation = new Timeline();
+            newAnimation.getKeyFrames().addAll(transition.animate(this));
+            newAnimation.getKeyFrames().add(new KeyFrame(duration, e -> {
+                setMouseTransparent(false);
+                getChildren().remove(previousNode);
            }));
-            nowAnimation.play();
-            animation = nowAnimation;
+            FXUtils.playAnimation(this, "transition_pane", newAnimation);
        });
    }

    private void updateContent(Node newView) {
-        if (view.getWidth() > 0 && view.getHeight() > 0) {
+        if (getWidth() > 0 && getHeight() > 0) {
            previousNode = currentNode;
            if (previousNode == null)
                previousNode = EMPTY_PANE;
@@ -105,11 +88,11 @@ public final class TransitionHandler implements AnimationHandler {
        if (previousNode == newView)
            previousNode = EMPTY_PANE;

-        view.setMouseTransparent(true);
+        setMouseTransparent(true);

        currentNode = newView;

-        view.getChildren().setAll(previousNode, currentNode);
+        getChildren().setAll(previousNode, currentNode);
    }

    private final StackPane EMPTY_PANE = new StackPane();
@@ -1,6 +1,6 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
@@ -13,7 +13,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl.ui.construct;

@@ -37,12 +37,11 @@ public class AdvancedListBox extends ScrollPane {
        setFitToWidth(true);
        setHbarPolicy(ScrollBarPolicy.NEVER);

-        container.setSpacing(5);
        container.getStyleClass().add("advanced-list-box-content");
    }

    public AdvancedListBox add(Node child) {
-        if (child instanceof Pane)
+        if (child instanceof Pane || child instanceof AdvancedListItem)
            container.getChildren().add(child);
        else {
            StackPane pane = new StackPane();
@@ -53,22 +52,37 @@ public class AdvancedListBox extends ScrollPane {
        return this;
    }

-    public AdvancedListBox remove(Node child) {
-        if (child instanceof Pane)
-            container.getChildren().remove(child);
+    public AdvancedListBox add(int index, Node child) {
+        if (child instanceof Pane || child instanceof AdvancedListItem)
+            container.getChildren().add(index, child);
        else {
-            StackPane pane = null;
-            for (Node node : container.getChildren())
+            StackPane pane = new StackPane();
+            pane.getStyleClass().add("advanced-list-box-item");
+            pane.getChildren().setAll(child);
+            container.getChildren().add(index, pane);
+        }
+        return this;
+    }
+
+    public AdvancedListBox remove(Node child) {
+        container.getChildren().remove(indexOf(child));
+        return this;
+    }
+
+    public int indexOf(Node child) {
+        if (child instanceof Pane) {
+            return container.getChildren().indexOf(child);
+        } else {
+            for (int i = 0; i < container.getChildren().size(); ++i) {
+                Node node = container.getChildren().get(i);
                if (node instanceof StackPane) {
                    ObservableList<Node> list = ((StackPane) node).getChildren();
                    if (list.size() == 1 && list.get(0) == child)
-                        pane = (StackPane) node;
+                        return i;
                }
-            if (pane == null)
-                throw new Error();
-            container.getChildren().remove(pane);
+            }
+            return -1;
        }
-        return this;
    }

    public AdvancedListBox startCategory(String category) {
@@ -1,7 +1,7 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
@@ -13,59 +13,144 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl.ui.construct;

-import com.jfoenix.controls.JFXButton;
+import javafx.beans.property.*;
+import javafx.event.ActionEvent;
 import javafx.event.EventHandler;
-import javafx.fxml.FXML;
-import javafx.geometry.Rectangle2D;
-import javafx.scene.control.Label;
+import javafx.scene.Node;
+import javafx.scene.control.Control;
+import javafx.scene.control.Skin;
 import javafx.scene.image.Image;
 import javafx.scene.image.ImageView;
 import javafx.scene.input.MouseEvent;
 import javafx.scene.layout.StackPane;
 import org.jackhuang.hmcl.ui.FXUtils;
+import org.jackhuang.hmcl.util.Pair;

-public final class AdvancedListItem extends StackPane {
-    @FXML
-    private StackPane imageViewContainer;
-    @FXML
-    private Label lblTitle;
-    @FXML
-    private Label lblSubtitle;
-    @FXML
-    private ImageView imageView;
-    @FXML private JFXButton btnSettings;
+import static org.jackhuang.hmcl.util.Pair.pair;

-    public AdvancedListItem(String title) {
-        this(title, "");
+public class AdvancedListItem extends Control {
+    private final ObjectProperty<Node> leftGraphic = new SimpleObjectProperty<>(this, "leftGraphic");
+    private final ObjectProperty<Node> rightGraphic = new SimpleObjectProperty<>(this, "rightGraphic");
+    private final StringProperty title = new SimpleStringProperty(this, "title");
+    private final BooleanProperty active = new SimpleBooleanProperty(this, "active");
+    private final StringProperty subtitle = new SimpleStringProperty(this, "subtitle");
+    private final BooleanProperty actionButtonVisible = new SimpleBooleanProperty(this, "actionButtonVisible", true);
+
+    public AdvancedListItem() {
+        getStyleClass().add("advanced-list-item");
+        addEventHandler(MouseEvent.MOUSE_CLICKED, e -> fireEvent(new ActionEvent()));
    }

-    public AdvancedListItem(String title, String subtitle) {
-        FXUtils.loadFXML(this, "/assets/fxml/advanced-list-item.fxml");
-
-        lblTitle.setText(title);
-        lblSubtitle.setText(subtitle);
-
-        FXUtils.limitSize(imageView, 32, 32);
+    public Node getLeftGraphic() {
+        return leftGraphic.get();
    }

-    public void setOnSettingsButtonClicked(EventHandler<? super MouseEvent> handler) {
-        btnSettings.setOnMouseClicked(handler);
+    public ObjectProperty<Node> leftGraphicProperty() {
+        return leftGraphic;
+    }
+
+    public void setLeftGraphic(Node leftGraphic) {
+        this.leftGraphic.set(leftGraphic);
+    }
+
+    public Node getRightGraphic() {
+        return rightGraphic.get();
+    }
+
+    public ObjectProperty<Node> rightGraphicProperty() {
+        return rightGraphic;
+    }
+
+    public void setRightGraphic(Node rightGraphic) {
+        this.rightGraphic.set(rightGraphic);
+    }
+
+    public String getTitle() {
+        return title.get();
+    }
+
+    public StringProperty titleProperty() {
+        return title;
    }

    public void setTitle(String title) {
-        lblTitle.setText(title);
+        this.title.set(title);
+    }
+
+    public boolean isActive() {
+        return active.get();
+    }
+
+    public BooleanProperty activeProperty() {
+        return active;
+    }
+
+    public void setActive(boolean active) {
+        this.active.set(active);
+    }
+
+    public String getSubtitle() {
+        return subtitle.get();
+    }
+
+    public StringProperty subtitleProperty() {
+        return subtitle;
    }

    public void setSubtitle(String subtitle) {
-        lblSubtitle.setText(subtitle);
+        this.subtitle.set(subtitle);
    }

-    public void setImage(Image image, Rectangle2D viewport) {
+    public boolean isActionButtonVisible() {
+        return actionButtonVisible.get();
+    }
+
+    public BooleanProperty actionButtonVisibleProperty() {
+        return actionButtonVisible;
+    }
+
+    public void setActionButtonVisible(boolean actionButtonVisible) {
+        this.actionButtonVisible.set(actionButtonVisible);
+    }
+
+    public final ObjectProperty<EventHandler<ActionEvent>> onActionProperty() {
+        return onAction;
+    }
+
+    public final void setOnAction(EventHandler<ActionEvent> value) {
+        onActionProperty().set(value);
+    }
+
+    public final EventHandler<ActionEvent> getOnAction() {
+        return onActionProperty().get();
+    }
+
+    private ObjectProperty<EventHandler<ActionEvent>> onAction = new SimpleObjectProperty<EventHandler<ActionEvent>>(this, "onAction") {
+        @Override
+        protected void invalidated() {
+            setEventHandler(ActionEvent.ACTION, get());
+        }
+    };
+
+    @Override
+    protected Skin<?> createDefaultSkin() {
+        return new AdvancedListItemSkin(this);
+    }
+
+    public static Pair<Node, ImageView> createImageView(Image image) {
+        StackPane imageViewContainer = new StackPane();
+        FXUtils.setLimitWidth(imageViewContainer, 32);
+        FXUtils.setLimitHeight(imageViewContainer, 32);
+
+        ImageView imageView = new ImageView();
+        FXUtils.limitSize(imageView, 32, 32);
+        imageView.setPreserveRatio(true);
        imageView.setImage(image);
-        imageView.setViewport(viewport);
+        imageViewContainer.getChildren().setAll(imageView);
+        return pair(imageViewContainer, imageView);
    }
 }
@@ -0,0 +1,103 @@
+/*
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package org.jackhuang.hmcl.ui.construct;
+
+import javafx.css.PseudoClass;
+import javafx.geometry.Pos;
+import javafx.scene.control.Label;
+import javafx.scene.control.SkinBase;
+import javafx.scene.layout.BorderPane;
+import javafx.scene.layout.HBox;
+import javafx.scene.layout.StackPane;
+import javafx.scene.layout.VBox;
+import org.jackhuang.hmcl.ui.FXUtils;
+
+public class AdvancedListItemSkin extends SkinBase<AdvancedListItem> {
+    private final PseudoClass SELECTED = PseudoClass.getPseudoClass("selected");
+
+    public AdvancedListItemSkin(AdvancedListItem skinnable) {
+        super(skinnable);
+
+        StackPane stackPane = new StackPane();
+        stackPane.getStyleClass().add("container");
+        RipplerContainer container = new RipplerContainer(stackPane);
+
+        FXUtils.onChangeAndOperate(skinnable.activeProperty(), active -> {
+            skinnable.pseudoClassStateChanged(SELECTED, active);
+        });
+
+        BorderPane root = new BorderPane();
+        root.setPickOnBounds(false);
+
+        HBox left = new HBox();
+        left.setAlignment(Pos.CENTER_LEFT);
+        left.setMouseTransparent(true);
+
+        VBox vbox = new VBox();
+        root.setCenter(vbox);
+        vbox.setMouseTransparent(true);
+        vbox.setAlignment(Pos.CENTER_LEFT);
+
+        Label title = new Label();
+        title.textProperty().bind(skinnable.titleProperty());
+        title.getStyleClass().add("title");
+        vbox.getChildren().add(title);
+
+        Label subtitle = new Label();
+        subtitle.textProperty().bind(skinnable.subtitleProperty());
+        subtitle.getStyleClass().add("subtitle");
+        vbox.getChildren().add(subtitle);
+
+        FXUtils.onChangeAndOperate(skinnable.subtitleProperty(), subtitleString -> {
+            if (subtitleString == null) vbox.getChildren().setAll(title);
+            else vbox.getChildren().setAll(title, subtitle);
+        });
+
+        FXUtils.onChangeAndOperate(skinnable.leftGraphicProperty(),
+                newGraphic -> {
+                    if (newGraphic == null) {
+                        left.getChildren().clear();
+                    } else {
+                        left.getChildren().setAll(newGraphic);
+                    }
+                });
+        root.setLeft(left);
+
+        HBox right = new HBox();
+        right.setAlignment(Pos.CENTER);
+        right.setMouseTransparent(true);
+        right.getStyleClass().add("toggle-icon4");
+        FXUtils.setLimitWidth(right, 40);
+        FXUtils.onChangeAndOperate(skinnable.rightGraphicProperty(),
+                newGraphic -> {
+                    if (newGraphic == null) {
+                        right.getChildren().clear();
+                    } else {
+                        right.getChildren().setAll(newGraphic);
+                    }
+                });
+
+        FXUtils.onChangeAndOperate(skinnable.actionButtonVisibleProperty(),
+                visible -> root.setRight(visible ? right : null));
+
+        stackPane.setPickOnBounds(false);
+        stackPane.getChildren().setAll(root);
+
+        getChildren().setAll(container);
+    }
+}
@@ -1,7 +1,7 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
@@ -13,7 +13,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl.ui.construct;

@@ -1,7 +1,7 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
@@ -13,57 +13,43 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl.ui.construct;

+import org.jackhuang.hmcl.util.javafx.MappedObservableList;
+
 import javafx.beans.DefaultProperty;
+import javafx.beans.binding.Bindings;
+import javafx.beans.binding.ObjectBinding;
 import javafx.beans.property.IntegerProperty;
 import javafx.beans.property.SimpleIntegerProperty;
 import javafx.beans.property.SimpleStringProperty;
 import javafx.beans.property.StringProperty;
 import javafx.collections.FXCollections;
-import javafx.collections.ListChangeListener;
 import javafx.collections.ObservableList;
+import javafx.css.PseudoClass;
 import javafx.scene.Node;
-import javafx.scene.layout.StackPane;
+import javafx.scene.control.Control;
+import javafx.scene.control.SkinBase;
 import javafx.scene.layout.VBox;

+import java.util.function.Consumer;
+
@DefaultProperty("content")
-public class ComponentList extends StackPane {
-    private final VBox vbox = new VBox();
+public class ComponentList extends Control {
    private final StringProperty title = new SimpleStringProperty(this, "title", "Group");
    private final StringProperty subtitle = new SimpleStringProperty(this, "subtitle", "");
    private final IntegerProperty depth = new SimpleIntegerProperty(this, "depth", 0);
    private boolean hasSubtitle = false;
    public final ObservableList<Node> content = FXCollections.observableArrayList();
+    private boolean expanded = false;
+    private Consumer<ComponentList> lazyInitializer;

    public ComponentList() {
-        getChildren().setAll(vbox);
-        content.addListener((ListChangeListener<? super Node>) change -> {
-            while (change.next()) {
-                for (int i = change.getFrom(); i < change.getTo(); ++i)
-                    addChildren(change.getList().get(i));
-            }
-        });
        getStyleClass().add("options-list");
    }

-    public void addChildren(Node node) {
-        StackPane child = new StackPane();
-        child.getChildren().add(new ComponentListCell(node));
-        if (vbox.getChildren().isEmpty())
-            child.getStyleClass().add("options-list-item-ahead");
-        else
-            child.getStyleClass().add("options-list-item");
-        child.getProperties().put("node", node);
-        vbox.getChildren().add(child);
-    }
-
-    public void removeChildren(Node node) {
-        vbox.getChildren().removeIf(node1 -> node1.getProperties().get("node") == node);
-    }
-
    public String getTitle() {
        return title.get();
    }
@@ -111,4 +97,64 @@ public class ComponentList extends StackPane {
    public ObservableList<Node> getContent() {
        return content;
    }
+
+    public void setLazyInitializer(Consumer<ComponentList> lazyInitializer) {
+        this.lazyInitializer = lazyInitializer;
+    }
+
+    public void onExpand() {
+        if (!expanded && lazyInitializer != null) {
+            lazyInitializer.accept(this);
+        }
+
+        expanded = true;
+    }
+
+    @Override
+    protected javafx.scene.control.Skin<?> createDefaultSkin() {
+        return new Skin(this);
+    }
+
+    protected static class Skin extends SkinBase<ComponentList> {
+        private static final PseudoClass PSEUDO_CLASS_FIRST = PseudoClass.getPseudoClass("first");
+        private static final PseudoClass PSEUDO_CLASS_LAST = PseudoClass.getPseudoClass("last");
+
+        private final ObservableList<Node> list;
+        private final ObjectBinding<Node> firstItem;
+        private final ObjectBinding<Node> lastItem;
+
+        protected Skin(ComponentList control) {
+            super(control);
+
+            list = MappedObservableList.create(control.getContent(), node -> {
+                ComponentListCell cell = new ComponentListCell(node);
+                cell.getStyleClass().add("options-list-item");
+                return cell;
+            });
+
+            firstItem = Bindings.valueAt(list, 0);
+            firstItem.addListener((observable, oldValue, newValue) -> {
+                if (newValue != null)
+                    newValue.pseudoClassStateChanged(PSEUDO_CLASS_FIRST, true);
+                if (oldValue != null)
+                    oldValue.pseudoClassStateChanged(PSEUDO_CLASS_FIRST, false);
+            });
+            if (!list.isEmpty())
+                list.get(0).pseudoClassStateChanged(PSEUDO_CLASS_FIRST, true);
+
+            lastItem = Bindings.valueAt(list, Bindings.subtract(Bindings.size(list), 1));
+            lastItem.addListener((observable, oldValue, newValue) -> {
+                if (newValue != null)
+                    newValue.pseudoClassStateChanged(PSEUDO_CLASS_LAST, true);
+                if (oldValue != null)
+                    oldValue.pseudoClassStateChanged(PSEUDO_CLASS_LAST, false);
+            });
+            if (!list.isEmpty())
+                list.get(list.size() - 1).pseudoClassStateChanged(PSEUDO_CLASS_LAST, true);
+
+            VBox vbox = new VBox();
+            Bindings.bindContent(vbox.getChildren(), list);
+            getChildren().setAll(vbox);
+        }
+    }
 }
@@ -1,7 +1,7 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
@@ -13,7 +13,7 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl.ui.construct;

@@ -24,6 +24,7 @@ import javafx.animation.KeyValue;
 import javafx.animation.Timeline;
 import javafx.beans.property.BooleanProperty;
 import javafx.beans.property.SimpleBooleanProperty;
+import javafx.geometry.Insets;
 import javafx.geometry.Pos;
 import javafx.scene.Node;
 import javafx.scene.control.Label;
@@ -40,13 +41,13 @@ import org.jackhuang.hmcl.ui.SVG;
 /**
 * @author huangyuhui
 */
-public class ComponentListCell extends StackPane {
+class ComponentListCell extends StackPane {
    private final Node content;
    private Animation expandAnimation;
    private Rectangle clipRect;
    private final BooleanProperty expanded = new SimpleBooleanProperty(this, "expanded", false);

-    public ComponentListCell(Node content) {
+    ComponentListCell(Node content) {
        this.content = content;

        updateLayout();
@@ -78,29 +79,32 @@ public class ComponentListCell extends StackPane {
            content.getStyleClass().add("options-sublist");

            BorderPane groupNode = new BorderPane();
-            groupNode.getStyleClass().add("options-list-item-header");

-            Node expandIcon = SVG.expand(Theme.blackFillBinding(), 10, 10);
+            Node expandIcon = SVG.expand(Theme.blackFillBinding(), 20, 20);
            JFXButton expandButton = new JFXButton();
            expandButton.setGraphic(expandIcon);
            expandButton.getStyleClass().add("options-list-item-expand-button");

            VBox labelVBox = new VBox();
+            labelVBox.setAlignment(Pos.CENTER_LEFT);

+            boolean overrideHeaderLeft = false;
            if (list instanceof ComponentSublist) {
                Node leftNode = ((ComponentSublist) list).getHeaderLeft();
-                if (leftNode != null)
+                if (leftNode != null) {
                    labelVBox.getChildren().setAll(leftNode);
-            } else {
+                    overrideHeaderLeft = true;
+                }
+            }
+
+            if (!overrideHeaderLeft) {
                Label label = new Label();
                label.textProperty().bind(list.titleProperty());
-                label.setMouseTransparent(true);
                labelVBox.getChildren().add(label);

                if (list.isHasSubtitle()) {
                    Label subtitleLabel = new Label();
                    subtitleLabel.textProperty().bind(list.subtitleProperty());
-                    subtitleLabel.setMouseTransparent(true);
                    subtitleLabel.getStyleClass().add("subtitle-label");
                    labelVBox.getChildren().add(subtitleLabel);
                }
@@ -109,6 +113,8 @@ public class ComponentListCell extends StackPane {
            groupNode.setLeft(labelVBox);

            HBox right = new HBox();
+            right.setSpacing(16);
+            right.setAlignment(Pos.CENTER_RIGHT);
            if (list instanceof ComponentSublist) {
                Node rightNode = ((ComponentSublist) list).getHeaderRight();
                if (rightNode != null)
@@ -116,21 +122,13 @@ public class ComponentListCell extends StackPane {
            }
            right.getChildren().add(expandButton);
            groupNode.setRight(right);
-            labelVBox.setAlignment(Pos.CENTER_LEFT);
-            right.setAlignment(Pos.CENTER_RIGHT);

            VBox container = new VBox();
-            container.setStyle("-fx-padding: 8 0 0 0;");
+            container.setPadding(new Insets(8, 0, 0, 0));
            FXUtils.setLimitHeight(container, 0);
-            Rectangle clipRect = new Rectangle();
-            clipRect.widthProperty().bind(container.widthProperty());
-            clipRect.heightProperty().bind(container.heightProperty());
-            container.setClip(clipRect);
+            FXUtils.setOverflowHidden(container);
            container.getChildren().setAll(content);
-
-            VBox holder = new VBox();
-            holder.getChildren().setAll(groupNode, container);
-            holder.getStyleClass().add("options-list-item-container");
+            groupNode.setBottom(container);

            expandButton.setOnMouseClicked(e -> {
                if (expandAnimation != null && expandAnimation.getStatus() == Animation.Status.RUNNING) {
@@ -145,6 +143,7 @@ public class ComponentListCell extends StackPane {

                if (isExpanded()) {
                    updateClip(newHeight);
+                    list.onExpand();
                }

                expandAnimation = new Timeline(new KeyFrame(new Duration(320.0),
@@ -162,9 +161,10 @@ public class ComponentListCell extends StackPane {
            expandedProperty().addListener((a, b, newValue) ->
                    expandIcon.setRotate(newValue ? 180 : 0));

-            getChildren().setAll(holder);
-        } else
+            getChildren().setAll(groupNode);
+        } else {
            getChildren().setAll(content);
+        }
    }

    public boolean isExpanded() {
@@ -1,3 +1,20 @@
+/*
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
 package org.jackhuang.hmcl.ui.construct;

 import javafx.beans.DefaultProperty;
@@ -6,7 +23,7 @@ import javafx.beans.property.SimpleObjectProperty;
 import javafx.scene.Node;

@DefaultProperty("content")
-public final class ComponentSublist extends ComponentList {
+public class ComponentSublist extends ComponentList {

    private final ObjectProperty<Node> headerLeft = new SimpleObjectProperty<>(this, "headerLeft");
    private final ObjectProperty<Node> headerRight = new SimpleObjectProperty<>(this, "headerRight");
@@ -1,7 +1,7 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
@@ -13,16 +13,19 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
-package org.jackhuang.hmcl.task;
+package org.jackhuang.hmcl.ui.construct;
+
+import org.jackhuang.hmcl.ui.Controllers;

 /**
- * If a task throws {@link SilentException},
- * the task will be marked as failure but do not log the stacktrace.
- *
- * @author huangyuhui
+ * @author yushijinhun
+ * @see Controllers#dialog(javafx.scene.layout.Region)
 */
-public final class SilentException extends Exception {
+public interface DialogAware {
+
+    default void onDialogShown() {
+    }

 }
@@ -1,6 +1,6 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
@@ -13,16 +13,15 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl.ui.construct;

-import org.jackhuang.hmcl.ui.Controllers;
-
 import javafx.event.Event;
 import javafx.event.EventTarget;
 import javafx.event.EventType;
 import javafx.scene.layout.Region;
+import org.jackhuang.hmcl.ui.Controllers;

 /**
 * Indicates a close operation on the dialog.
@@ -32,7 +31,7 @@ import javafx.scene.layout.Region;
 */
 public class DialogCloseEvent extends Event {

-    public static final EventType<DialogCloseEvent> CLOSE = new EventType<>("CLOSE");
+    public static final EventType<DialogCloseEvent> CLOSE = new EventType<>("DIALOG_CLOSE");

    public DialogCloseEvent() {
        super(CLOSE);
@@ -1,7 +1,7 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
@@ -13,12 +13,11 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl.ui.construct;

 import com.jfoenix.controls.JFXButton;
-
 import javafx.beans.property.BooleanProperty;
 import javafx.beans.property.SimpleBooleanProperty;
 import javafx.beans.property.SimpleStringProperty;
@@ -28,19 +27,18 @@ import javafx.scene.control.Tooltip;
 import javafx.scene.layout.BorderPane;
 import javafx.scene.layout.VBox;
 import javafx.stage.DirectoryChooser;
-
 import org.jackhuang.hmcl.setting.Theme;
 import org.jackhuang.hmcl.ui.Controllers;
 import org.jackhuang.hmcl.ui.FXUtils;
 import org.jackhuang.hmcl.ui.SVG;

-import static org.jackhuang.hmcl.ui.FXUtils.onInvalidating;
-import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
-
 import java.io.File;
 import java.nio.file.Path;
 import java.nio.file.Paths;

+import static org.jackhuang.hmcl.ui.FXUtils.onInvalidating;
+import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
+
 public class FileItem extends BorderPane {
    private final Label lblPath = new Label();

@@ -63,7 +61,7 @@ public class FileItem extends BorderPane {
        right.setGraphic(SVG.pencil(Theme.blackFillBinding(), 15, 15));
        right.getStyleClass().add("toggle-icon4");
        right.setOnMouseClicked(e -> onExplore());
-        FXUtils.installTooltip(right, i18n("button.edit"));
+        FXUtils.installFastTooltip(right, i18n("button.edit"));
        setRight(right);

        Tooltip tip = new Tooltip();
@@ -77,7 +75,13 @@ public class FileItem extends BorderPane {
     * Converts the given path to absolute/relative(if possible) path according to {@link #convertToRelativePathProperty()}.
     */
    private String processPath(String path) {
-        Path given = Paths.get(path).toAbsolutePath();
+        Path given;
+        try {
+            given = Paths.get(path).toAbsolutePath();
+        } catch (IllegalArgumentException e) {
+            return path;
+        }
+
        if (isConvertToRelativePath()) {
            try {
                return Paths.get(".").normalize().toAbsolutePath().relativize(given).normalize().toString();
@@ -0,0 +1,59 @@
+/*
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package org.jackhuang.hmcl.ui.construct;
+
+import com.jfoenix.effects.JFXDepthManager;
+import javafx.css.PseudoClass;
+import javafx.geometry.Insets;
+import javafx.scene.Cursor;
+import javafx.scene.control.ListCell;
+import javafx.scene.layout.StackPane;
+import org.jackhuang.hmcl.ui.FXUtils;
+
+public abstract class FloatListCell<T> extends ListCell<T> {
+    private final PseudoClass SELECTED = PseudoClass.getPseudoClass("selected");
+
+    protected final StackPane pane = new StackPane();
+
+    {
+        setText(null);
+        setGraphic(null);
+
+        pane.getStyleClass().add("card");
+        pane.setCursor(Cursor.HAND);
+        setPadding(new Insets(9, 9, 0, 9));
+        JFXDepthManager.setDepth(pane, 1);
+
+        FXUtils.onChangeAndOperate(selectedProperty(), selected -> {
+            pane.pseudoClassStateChanged(SELECTED, selected);
+        });
+    }
+
+    @Override
+    protected void updateItem(T item, boolean empty) {
+        super.updateItem(item, empty);
+        updateControl(item, empty);
+        if (empty) {
+            setGraphic(null);
+        } else {
+            setGraphic(pane);
+        }
+    }
+
+    protected abstract void updateControl(T dataItem, boolean empty);
+}
@@ -0,0 +1,192 @@
+/*
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package org.jackhuang.hmcl.ui.construct;
+
+import javafx.beans.binding.Bindings;
+import javafx.beans.binding.NumberBinding;
+import javafx.geometry.Orientation;
+import javafx.geometry.Point2D;
+import javafx.scene.Node;
+import javafx.scene.control.ScrollBar;
+import javafx.scene.control.Skin;
+import javafx.scene.layout.Region;
+import javafx.scene.shape.Rectangle;
+import org.jackhuang.hmcl.util.Lang;
+
+public class FloatScrollBarSkin implements Skin<ScrollBar> {
+    private ScrollBar scrollBar;
+    private Region group;
+    private Rectangle track = new Rectangle();
+    private Rectangle thumb = new Rectangle();
+
+    public FloatScrollBarSkin(final ScrollBar scrollBar) {
+        this.scrollBar = scrollBar;
+        scrollBar.setPrefHeight(1e-18);
+        scrollBar.setPrefWidth(1e-18);
+
+        this.group = new Region() {
+            Point2D dragStart;
+            double preDragThumbPos;
+
+            NumberBinding range = Bindings.subtract(scrollBar.maxProperty(), scrollBar.minProperty());
+            NumberBinding position = Bindings.divide(Bindings.subtract(scrollBar.valueProperty(), scrollBar.minProperty()), range);
+
+            {
+                // Children are added unmanaged because for some reason the height of the bar keeps changing
+                // if they're managed in certain situations... not sure about the cause.
+                getChildren().addAll(track, thumb);
+
+                track.setManaged(false);
+                track.getStyleClass().add("track");
+
+                thumb.setManaged(false);
+                thumb.getStyleClass().add("thumb");
+
+                scrollBar.orientationProperty().addListener(obs -> setup());
+
+                setup();
+
+
+                thumb.setOnMousePressed(me -> {
+                    if (me.isSynthesized()) {
+                        // touch-screen events handled by Scroll handler
+                        me.consume();
+                        return;
+                    }
+                    /*
+                     ** if max isn't greater than min then there is nothing to do here
+                     */
+                    if (getSkinnable().getMax() > getSkinnable().getMin()) {
+                        dragStart = thumb.localToParent(me.getX(), me.getY());
+                        double clampedValue = Lang.clamp(getSkinnable().getMin(), getSkinnable().getValue(), getSkinnable().getMax());
+                        preDragThumbPos = (clampedValue - getSkinnable().getMin()) / (getSkinnable().getMax() - getSkinnable().getMin());
+                        me.consume();
+                    }
+                });
+
+
+                thumb.setOnMouseDragged(me -> {
+                    if (me.isSynthesized()) {
+                        // touch-screen events handled by Scroll handler
+                        me.consume();
+                        return;
+                    }
+                    /*
+                     ** if max isn't greater than min then there is nothing to do here
+                     */
+                    if (getSkinnable().getMax() > getSkinnable().getMin()) {
+                        /*
+                         ** if the tracklength isn't greater then do nothing....
+                         */
+                        if (trackLength() > thumbLength()) {
+                            Point2D cur = thumb.localToParent(me.getX(), me.getY());
+                            if (dragStart == null) {
+                                // we're getting dragged without getting a mouse press
+                                dragStart = thumb.localToParent(me.getX(), me.getY());
+                            }
+                            double dragPos = getSkinnable().getOrientation() == Orientation.VERTICAL ? cur.getY() - dragStart.getY() : cur.getX() - dragStart.getX();
+                            double position = preDragThumbPos + dragPos / (trackLength() - thumbLength());
+                            if (!getSkinnable().isFocused() && getSkinnable().isFocusTraversable())
+                                getSkinnable().requestFocus();
+                            double newValue = (position * (getSkinnable().getMax() - getSkinnable().getMin())) + getSkinnable().getMin();
+                            if (!Double.isNaN(newValue)) {
+                                getSkinnable().setValue(Lang.clamp(getSkinnable().getMin(), newValue, getSkinnable().getMax()));
+                            }
+                        }
+
+                        me.consume();
+                    }
+                });
+            }
+
+            private double trackLength() {
+                return getSkinnable().getOrientation() == Orientation.VERTICAL ? track.getHeight() : track.getWidth();
+            }
+
+            private double thumbLength() {
+                return getSkinnable().getOrientation() == Orientation.VERTICAL ? thumb.getHeight() : thumb.getWidth();
+            }
+
+            private void setup() {
+                track.widthProperty().unbind();
+                track.heightProperty().unbind();
+
+                if (scrollBar.getOrientation() == Orientation.HORIZONTAL) {
+                    track.relocate(0, -5);
+                    track.widthProperty().bind(scrollBar.widthProperty());
+                    track.setHeight(5);
+                } else {
+                    track.relocate(-5, 0);
+                    track.setWidth(5);
+                    track.heightProperty().bind(scrollBar.heightProperty());
+                }
+
+                thumb.xProperty().unbind();
+                thumb.yProperty().unbind();
+                thumb.widthProperty().unbind();
+                thumb.heightProperty().unbind();
+
+                if (scrollBar.getOrientation() == Orientation.HORIZONTAL) {
+                    thumb.relocate(0, -5);
+                    thumb.widthProperty().bind(Bindings.max(20, scrollBar.visibleAmountProperty().divide(range).multiply(scrollBar.widthProperty())));
+                    thumb.setHeight(5);
+                    thumb.xProperty().bind(Bindings.subtract(scrollBar.widthProperty(), thumb.widthProperty()).multiply(position));
+                } else {
+                    thumb.relocate(-5, 0);
+                    thumb.setWidth(5);
+                    thumb.heightProperty().bind(Bindings.max(20, scrollBar.visibleAmountProperty().divide(range).multiply(scrollBar.heightProperty())));
+                    thumb.yProperty().bind(Bindings.subtract(scrollBar.heightProperty(), thumb.heightProperty()).multiply(position));
+                }
+            }
+
+            @Override
+            protected double computeMaxWidth(double height) {
+                if (scrollBar.getOrientation() == Orientation.HORIZONTAL) {
+                    return Double.MAX_VALUE;
+                }
+
+                return 5;
+            }
+
+            @Override
+            protected double computeMaxHeight(double width) {
+                if (scrollBar.getOrientation() == Orientation.VERTICAL) {
+                    return Double.MAX_VALUE;
+                }
+
+                return 5;
+            }
+        };
+    }
+
+    @Override
+    public void dispose() {
+        scrollBar = null;
+        group = null;
+    }
+
+    @Override
+    public Node getNode() {
+        return group;
+    }
+
+    @Override
+    public ScrollBar getSkinnable() {
+        return scrollBar;
+    }
+}
@@ -1,7 +1,7 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
@@ -13,36 +13,51 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl.ui.construct;

+import static javafx.collections.FXCollections.emptyObservableList;
+import static javafx.collections.FXCollections.observableList;
+import static javafx.collections.FXCollections.singletonObservableList;
+
+import org.jackhuang.hmcl.util.javafx.BindingMapping;
+
 import com.jfoenix.controls.JFXComboBox;
+import com.jfoenix.controls.JFXListCell;
+
 import javafx.beans.NamedArg;
-import javafx.collections.FXCollections;
-import javafx.scene.control.ListCell;
+import javafx.beans.binding.Bindings;
 import javafx.scene.text.Font;

 public class FontComboBox extends JFXComboBox<String> {

-    public FontComboBox(@NamedArg(value = "fontSize", defaultValue = "12.0") double fontSize,
-                        @NamedArg(value = "enableStyle", defaultValue = "false") boolean enableStyle) {
-        super(FXCollections.observableArrayList(Font.getFamilies()));
+    private boolean loaded = false;

-        valueProperty().addListener((a, b, newValue) -> {
-            if (enableStyle)
-                setStyle("-fx-font-family: \"" + newValue + "\";");
-        });
+    public FontComboBox(@NamedArg(value = "fontSize", defaultValue = "12.0") double fontSize) {
+        styleProperty().bind(Bindings.concat("-fx-font-family: \"", valueProperty(), "\""));

-        setCellFactory(listView -> new ListCell<String>() {
+        setCellFactory(listView -> new JFXListCell<String>() {
            @Override
-            protected void updateItem(String item, boolean empty) {
+            public void updateItem(String item, boolean empty) {
                super.updateItem(item, empty);
-                if (item != null) {
+                if (!empty) {
                    setText(item);
-                    setFont(new Font(item, fontSize));
+                    setGraphic(null);
+                    setStyle("-fx-font-family: \"" + item + "\"");
                }
            }
        });
+
+        itemsProperty().bind(BindingMapping.of(valueProperty())
+                        .map(value -> value == null ? emptyObservableList() : singletonObservableList(value)));
+
+        setOnMouseClicked(e -> {
+            if (loaded)
+                return;
+            itemsProperty().unbind();
+            setItems(observableList(Font.getFamilies()));
+            loaded = true;
+        });
    }
 }
@@ -1,7 +1,7 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
@@ -13,11 +13,10 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl.ui.construct;

-import javafx.geometry.Pos;
 import javafx.scene.Node;
 import javafx.scene.control.Label;
 import javafx.scene.layout.HBox;
@@ -34,18 +33,22 @@ public class IconedItem extends RipplerContainer {
    public IconedItem(Node icon) {
        super(createHBox(icon));
        label = ((Label) lookup("#label"));
+        getStyleClass().setAll("iconed-item");
    }

    private static HBox createHBox(Node icon) {
        HBox hBox = new HBox();
-        icon.setMouseTransparent(true);
+
+        if (icon != null) {
+            icon.setMouseTransparent(true);
+            hBox.getChildren().add(icon);
+        }
+
+        hBox.getStyleClass().add("iconed-item-container");
        Label textLabel = new Label();
        textLabel.setId("label");
-        textLabel.setAlignment(Pos.CENTER);
        textLabel.setMouseTransparent(true);
-        hBox.getChildren().addAll(icon, textLabel);
-        hBox.setStyle("-fx-padding: 10 16 10 16; -fx-spacing: 10; -fx-font-size: 14;");
-        hBox.setAlignment(Pos.CENTER_LEFT);
+        hBox.getChildren().addAll(textLabel);
        return hBox;
    }

@@ -0,0 +1,36 @@
+/*
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package org.jackhuang.hmcl.ui.construct;
+
+import javafx.scene.Node;
+import org.jackhuang.hmcl.ui.FXUtils;
+
+public class IconedMenuItem extends IconedItem {
+
+    public IconedMenuItem(Node node, String text, Runnable action) {
+        super(node, text);
+
+        getStyleClass().setAll("iconed-menu-item");
+        setOnMouseClicked(e -> action.run());
+    }
+
+    public IconedMenuItem addTooltip(String tooltip) {
+        FXUtils.installFastTooltip(this, tooltip);
+        return this;
+    }
+}
@@ -1,3 +1,20 @@
+/*
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
 package org.jackhuang.hmcl.ui.construct;

 import com.jfoenix.controls.JFXButton;
@@ -15,22 +32,20 @@ import javafx.scene.input.MouseEvent;
 import javafx.scene.layout.BorderPane;
 import javafx.scene.layout.HBox;
 import javafx.scene.layout.VBox;
-
-import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
-
 import org.jackhuang.hmcl.setting.Theme;
 import org.jackhuang.hmcl.ui.FXUtils;
 import org.jackhuang.hmcl.ui.SVG;

+import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
+
@DefaultProperty("image")
 public final class ImagePickerItem extends BorderPane {

    private final ImageView imageView;
-    private final JFXButton selectButton;
-    private final Label label;

    private final StringProperty title = new SimpleStringProperty(this, "title");
    private final ObjectProperty<EventHandler<? super MouseEvent>> onSelectButtonClicked = new SimpleObjectProperty<>(this, "onSelectButtonClicked");
+    private final ObjectProperty<EventHandler<? super MouseEvent>> onDeleteButtonClicked = new SimpleObjectProperty<>(this, "onDeleteButtonClicked");
    private final ObjectProperty<Image> image = new SimpleObjectProperty<>(this, "image");

    public ImagePickerItem() {
@@ -38,21 +53,26 @@ public final class ImagePickerItem extends BorderPane {
        imageView.setSmooth(false);
        imageView.setPreserveRatio(true);

-        selectButton = new JFXButton();
-        selectButton.setGraphic(SVG.pencil(Theme.blackFillBinding(), 15, 15));
+        JFXButton selectButton = new JFXButton();
+        selectButton.setGraphic(SVG.pencil(Theme.blackFillBinding(), 20, 20));
        selectButton.onMouseClickedProperty().bind(onSelectButtonClicked);
        selectButton.getStyleClass().add("toggle-icon4");

-        FXUtils.installTooltip(selectButton, i18n("button.edit"));
+        JFXButton deleteButton = new JFXButton();
+        deleteButton.setGraphic(SVG.close(Theme.blackFillBinding(), 20, 20));
+        deleteButton.onMouseClickedProperty().bind(onDeleteButtonClicked);
+        deleteButton.getStyleClass().add("toggle-icon4");
+
+        FXUtils.installFastTooltip(selectButton, i18n("button.edit"));

        HBox hBox = new HBox();
-        hBox.getChildren().setAll(imageView, selectButton);
+        hBox.getChildren().setAll(imageView, selectButton, deleteButton);
        hBox.setAlignment(Pos.CENTER_RIGHT);
        hBox.setSpacing(8);
        setRight(hBox);

        VBox vBox = new VBox();
-        label = new Label();
+        Label label = new Label();
        label.textProperty().bind(title);
        vBox.getChildren().setAll(label);
        vBox.setAlignment(Pos.CENTER_LEFT);
@@ -85,6 +105,18 @@ public final class ImagePickerItem extends BorderPane {
        this.onSelectButtonClicked.set(onSelectButtonClicked);
    }

+    public EventHandler<? super MouseEvent> getOnDeleteButtonClicked() {
+        return onDeleteButtonClicked.get();
+    }
+
+    public ObjectProperty<EventHandler<? super MouseEvent>> onDeleteButtonClickedProperty() {
+        return onDeleteButtonClicked;
+    }
+
+    public void setOnDeleteButtonClicked(EventHandler<? super MouseEvent> onDeleteButtonClicked) {
+        this.onDeleteButtonClicked.set(onDeleteButtonClicked);
+    }
+
    public Image getImage() {
        return image.get();
    }
@@ -1,6 +1,6 @@
 /*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
@@ -13,51 +13,59 @@
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 package org.jackhuang.hmcl.ui.construct;

 import com.jfoenix.controls.JFXButton;
 import com.jfoenix.controls.JFXTextField;
-import javafx.beans.binding.Bindings;
 import javafx.fxml.FXML;
 import javafx.scene.control.Label;
 import javafx.scene.layout.StackPane;
+import javafx.scene.layout.VBox;
 import org.jackhuang.hmcl.ui.FXUtils;
 import org.jackhuang.hmcl.util.FutureCallback;

+import java.util.concurrent.CompletableFuture;
+
 public class InputDialogPane extends StackPane {
+    private final CompletableFuture<String> future = new CompletableFuture<>();

    @FXML
    private JFXButton acceptButton;
    @FXML
    private JFXButton cancelButton;
    @FXML
-    private JFXTextField textField;
+    private Label title;
    @FXML
-    private Label content;
+    private VBox vbox;
    @FXML
    private Label lblCreationWarning;
+    @FXML
+    private SpinnerPane acceptPane;

-    public InputDialogPane(String text, FutureCallback<String> onResult) {
+    public InputDialogPane(String text, String initialValue, FutureCallback<String> onResult) {
        FXUtils.loadFXML(this, "/assets/fxml/input-dialog.fxml");
-        content.setText(text);
+        title.setText(text);
+        JFXTextField textField = new JFXTextField();
+        textField.setText(initialValue);
+        vbox.getChildren().setAll(textField);
        cancelButton.setOnMouseClicked(e -> fireEvent(new DialogCloseEvent()));
        acceptButton.setOnMouseClicked(e -> {
+            acceptPane.showSpinner();
+
            onResult.call(textField.getText(), () -> {
+                acceptPane.hideSpinner();
+                future.complete(textField.getText());
                fireEvent(new DialogCloseEvent());
            }, msg -> {
+                acceptPane.hideSpinner();
                lblCreationWarning.setText(msg);
            });
        });
-
-        acceptButton.disableProperty().bind(Bindings.createBooleanBinding(
-                () -> !textField.validate(),
-                textField.textProperty()
-        ));
    }

-    public void setInitialText(String text) {
-        textField.setText(text);
+    public CompletableFuture<String> getCompletableFuture() {
+        return future;
    }
 }