Add refresh button in mod list page

* Check if port is valid before setting it
* Validate user input
* Change proxyPort to int

.github/ISSUE_TEMPLATE.md

@@ -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（在启动器设置中打开日志文件夹并将文件夹内所有文件打包发在这里）：
+* 问题描述（如何触发问题）：

.gitignore

@@ -33,4 +33,4 @@ NVIDIA
 .settings
 
 # netbeans
-.nb-gradle
+.nb-gradle

HMCL/build.gradle

@@ -110,6 +110,24 @@ 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()
+            exec {
+                commandLine 'javapackager', '-createbss', '-outdir', bssFile.parent, '-srcfiles', cssFile.path
+            }
+        }
+    }
+    from "build/compiled-resources"
+
+    convertToBSS "assets/css/root.css"
+    convertToBSS "assets/css/blue.css"
+}
+
 task makePack(dependsOn: jar) {
     ext.outputPath = new File(jar.archivePath.parentFile, jar.archivePath.name[0..-4] + "pack")
     doLast {

HMCL/src/main/java/org/jackhuang/hmcl/Launcher.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2017  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 
@@ -26,7 +26,6 @@ import org.jackhuang.hmcl.task.Schedulers;
 import org.jackhuang.hmcl.ui.Controllers;
 import org.jackhuang.hmcl.upgrade.UpdateChecker;
 import org.jackhuang.hmcl.util.*;
-import org.jackhuang.hmcl.util.io.FileUtils;
 import org.jackhuang.hmcl.util.platform.OperatingSystem;
 
 import java.io.File;
@@ -50,22 +49,25 @@ public final class Launcher extends Application {
         Thread.currentThread().setUncaughtExceptionHandler(CRASH_REPORTER);
 
         try {
-            ConfigHolder.init();
-        } catch (IOException e) {
-            Main.showErrorAndExit(i18n("fatal.config_loading_failure", Paths.get("").toAbsolutePath().normalize()));
-        }
+            try {
+                ConfigHolder.init();
+            } catch (IOException e) {
+                Main.showErrorAndExit(i18n("fatal.config_loading_failure", Paths.get("").toAbsolutePath().normalize()));
+            }
 
-        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());
+            // 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.setResizable(false);
+                primaryStage.setScene(Controllers.getScene());
 
-            UpdateChecker.init();
+                UpdateChecker.init();
 
-            primaryStage.show();
+                primaryStage.show();
+            });
         } catch (Throwable e) {
             CRASH_REPORTER.uncaughtException(Thread.currentThread(), e);
         }
@@ -74,19 +76,14 @@ public final class Launcher extends Application {
     public static void main(String[] args) {
         Thread.setDefaultUncaughtExceptionHandler(CRASH_REPORTER);
 
-        if (!FileUtils.makeDirectory(LOG_DIRECTORY))
-            System.out.println("Unable to create log directory " + LOG_DIRECTORY + ", log files cannot be generated.");
-
         try {
-            Logging.start(LOG_DIRECTORY);
-
             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"));
@@ -143,9 +140,5 @@ 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();
 }

HMCL/src/main/java/org/jackhuang/hmcl/Main.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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 +13,13 @@
  * 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.upgrade.UpdateHandler;
+import org.jackhuang.hmcl.util.Logging;
+
 import javax.net.ssl.TrustManager;
 import javax.net.ssl.TrustManagerFactory;
 import javax.net.ssl.X509TrustManager;
@@ -29,6 +31,7 @@ import java.security.NoSuchAlgorithmException;
 import java.security.cert.X509Certificate;
 import java.util.logging.Level;
 
+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;
 
@@ -37,10 +40,15 @@ public final class 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");
 
         checkJavaFX();
         checkDirectoryPath();
-        checkDSTRootCAX3();
+
+        // This environment check will take ~300ms
+        thread(() -> checkDSTRootCAX3(), "CA Certificate Check", true);
+
+        Logging.start(Metadata.HMCL_DIRECTORY.resolve("logs"));
 
         if (UpdateHandler.processArguments(args)) {
             return;

HMCL/src/main/java/org/jackhuang/hmcl/Metadata.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 
+import java.nio.file.Path;
+
 import org.jackhuang.hmcl.util.io.JarUtils;
+import org.jackhuang.hmcl.util.platform.OperatingSystem;
 
 /**
  * Stores metadata about this application.
@@ -33,4 +36,7 @@ public final class Metadata {
     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 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 = OperatingSystem.getWorkingDirectory("hmcl");
 }

HMCL/src/main/java/org/jackhuang/hmcl/game/AccountHelper.java

@@ -1,7 +1,7 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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
@@ -13,13 +13,13 @@
  * 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.embed.swing.SwingFXUtils;
 import javafx.scene.image.Image;
-import org.jackhuang.hmcl.Launcher;
+import org.jackhuang.hmcl.Metadata;
 import org.jackhuang.hmcl.auth.Account;
 import org.jackhuang.hmcl.auth.yggdrasil.GameProfile;
 import org.jackhuang.hmcl.auth.yggdrasil.Texture;
@@ -41,7 +41,7 @@ public final class AccountHelper {
 
     private AccountHelper() {}
 
-    public static final File SKIN_DIR = new File(Launcher.HMCL_DIRECTORY, "skins");
+    public static final File SKIN_DIR = Metadata.HMCL_DIRECTORY.resolve("skins").toFile();
 
     public static void loadSkins() {
         for (Account account : Accounts.getAccounts()) {
@@ -75,6 +75,9 @@ public final class AccountHelper {
         File file = getSkinFile(uuid);
         if (file.exists()) {
             Image original = new Image("file:" + file.getAbsolutePath());
+            if (original.isError())
+                return getDefaultSkin(uuid, scaleRatio);
+
             return new Image("file:" + file.getAbsolutePath(),
                     original.getWidth() * scaleRatio,
                     original.getHeight() * scaleRatio,
@@ -140,12 +143,12 @@ public final class AccountHelper {
     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;
+        Optional<Texture> texture = account.getSkin(profile);
+        if (!texture.isPresent()) return;
+        String url = texture.get().getUrl();
         new FileDownloadTask(NetworkUtils.toURL(url), file).run();
     }
 
@@ -153,12 +156,15 @@ public final class AccountHelper {
         account.clearCache();
 
         if (account.getCharacter() == null) return;
+        File file = getSkinFile(account.getUUID());
+        if (!refresh && file.exists()) {
+            Image original = new Image("file:" + file.getAbsolutePath());
+            if (!original.isError())
+                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();
     }
 

HMCL/src/main/java/org/jackhuang/hmcl/game/HMCLCacheRepository.java

@@ -1,3 +1,20 @@
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;

HMCL/src/main/java/org/jackhuang/hmcl/game/HMCLGameLauncher.java

@@ -1,7 +1,7 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 

HMCL/src/main/java/org/jackhuang/hmcl/game/HMCLGameRepository.java

@@ -1,7 +1,7 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 
@@ -25,7 +25,6 @@ import org.jackhuang.hmcl.event.RefreshedVersionsEvent;
 import org.jackhuang.hmcl.event.RefreshingVersionsEvent;
 import org.jackhuang.hmcl.setting.EnumGameDirectory;
 import org.jackhuang.hmcl.setting.Profile;
-import org.jackhuang.hmcl.setting.Settings;
 import org.jackhuang.hmcl.setting.VersionSetting;
 import org.jackhuang.hmcl.util.Logging;
 import org.jackhuang.hmcl.util.io.FileUtils;
@@ -93,6 +92,16 @@ public class HMCLGameRepository extends DefaultGameRepository {
         refreshVersionsAsync().start();
     }
 
+    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));
+    }
+
     private File getVersionSettingFile(String id) {
         return new File(getVersionRoot(id), "hmclversion.cfg");
     }
@@ -217,8 +226,8 @@ public class HMCLGameRepository extends DefaultGameRepository {
         beingModpackVersions.remove(id);
     }
 
-    private static final Gson GSON = new GsonBuilder().setPrettyPrinting()
-            .registerTypeAdapter(VersionSetting.class, VersionSetting.Serializer.INSTANCE)
+    private static final Gson GSON = new GsonBuilder()
+            .setPrettyPrinting()
             .create();
 
     private static final HashSet<String> FORBIDDEN = new HashSet<>(Arrays.asList("modpack", "minecraftinstance", "manifest"));

HMCL/src/main/java/org/jackhuang/hmcl/game/HMCLModpackExportTask.java

@@ -1,7 +1,7 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 

HMCL/src/main/java/org/jackhuang/hmcl/game/HMCLModpackInstallTask.java

@@ -1,7 +1,7 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 
@@ -73,7 +73,7 @@ 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));
     }
 
     @Override
@@ -91,7 +91,7 @@ public final class HMCLModpackInstallTask extends Task {
         String json = CompressingUtils.readTextZipEntry(zipFile, "minecraft/pack.json");
         Version version = JsonUtils.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)));
+        dependencies.add(new MinecraftInstanceTask<>(zipFile, modpack.getEncoding(), "/minecraft", modpack, MODPACK_TYPE, repository.getModpackConfiguration(name)));
     }
 
     public static final String MODPACK_TYPE = "HMCL";

HMCL/src/main/java/org/jackhuang/hmcl/game/HMCLModpackManager.java

@@ -1,7 +1,7 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 
@@ -24,8 +24,9 @@ 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.nio.charset.Charset;
+import java.nio.file.Path;
 import java.util.List;
 
 /**
@@ -75,14 +76,15 @@ public final class HMCLModpackManager {
      * Read the manifest in a HMCL modpack.
      *
      * @param file a HMCL modpack file.
+     * @param encoding encoding of modpack zip file.
      * @throws IOException if the file is not a valid zip file.
      * @throws JsonParseException if the manifest.json is missing or malformed.
      * @return the manifest of HMCL modpack.
      */
-    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()))

HMCL/src/main/java/org/jackhuang/hmcl/game/HMCLModpackManifest.java

@@ -1,7 +1,7 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 

HMCL/src/main/java/org/jackhuang/hmcl/game/LauncherHelper.java

@@ -1,7 +1,7 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 
@@ -30,7 +30,6 @@ import org.jackhuang.hmcl.launch.*;
 import org.jackhuang.hmcl.mod.CurseCompletionException;
 import org.jackhuang.hmcl.mod.CurseCompletionTask;
 import org.jackhuang.hmcl.mod.ModpackConfiguration;
-import org.jackhuang.hmcl.setting.Accounts;
 import org.jackhuang.hmcl.setting.LauncherVisibility;
 import org.jackhuang.hmcl.setting.Profile;
 import org.jackhuang.hmcl.setting.VersionSetting;
@@ -54,6 +53,7 @@ import org.jackhuang.hmcl.util.platform.OperatingSystem;
 import org.jackhuang.hmcl.util.versioning.VersionNumber;
 
 import java.io.File;
+import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.util.*;
 import java.util.concurrent.ConcurrentLinkedQueue;
@@ -62,6 +62,7 @@ import java.util.concurrent.atomic.AtomicInteger;
 
 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;
 
@@ -144,8 +145,10 @@ public final class LauncherHelper {
                     try {
                         variables.set("account", account.logIn());
                     } catch (CredentialExpiredException e) {
+                        LOG.info("Credential has expired: " + e);
                         variables.set("account", DialogController.logIn(account));
                     } catch (AuthenticationException e) {
+                        LOG.warning("Authentication failed, try playing offline: " + e);
                         variables.set("account",
                                 account.playOffline().orElseThrow(() -> e));
                     }
@@ -193,7 +196,7 @@ public final class LauncherHelper {
                 }))
                 .executor();
 
-        launchingStepsPane.setExecutor(executor);
+        launchingStepsPane.setExecutor(executor, false);
         executor.addTaskListener(new TaskListener() {
             final AtomicInteger finished = new AtomicInteger(0);
 
@@ -216,7 +219,10 @@ public final class LauncherHelper {
                             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) {
@@ -243,6 +249,11 @@ 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;
@@ -290,8 +301,10 @@ public final class LauncherHelper {
             if (java8.isPresent()) {
                 java8required = true;
                 setting.setJavaVersion(java8.get());
+                Controllers.dialog(i18n("launch.advice.java9") + "\n" + i18n("launch.advice.corrected"), i18n("message.info"), MessageBox.INFORMATION_MESSAGE, 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"), MessageBox.ERROR_MESSAGE, null);
                 flag = true;
             }
         }
@@ -343,6 +356,7 @@ public final class LauncherHelper {
             }
         }
 
+        // 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.
@@ -350,12 +364,26 @@ public final class LauncherHelper {
             Controllers.dialog(i18n("launch.advice.too_large_memory_for_32bit"), i18n("message.error"), MessageBox.ERROR_MESSAGE, onAccept);
             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);
             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 ->
+                            0 <= VersionNumber.VERSION_COMPARATOR.compare("1.12.2-14.23.5.2760", it.getVersion()) &&
+                                    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.dialog(i18n("launch.advice.forge2760_liteloader"), i18n("message.error"), MessageBox.ERROR_MESSAGE, onAccept);
+                flag = true;
+            }
+        }
+
         if (!flag)
             onAccept.run();
     }
@@ -454,6 +482,39 @@ public final class LauncherHelper {
                 });
         }
 
+        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();
+                            emitStatus(LoadingState.DONE);
+                        }
+                    });
+                    break;
+                case CLOSE:
+                    // Never come to here.
+                    break;
+                case KEEP:
+                    Platform.runLater(() -> {
+                        emitStatus(LoadingState.DONE);
+                    });
+                    break;
+                case HIDE:
+                    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();
+                            emitStatus(LoadingState.DONE);
+                        }
+                    });
+                    break;
+            }
+        }
+
         @Override
         public synchronized void onLog(String log, Log4jLevel level) {
             String newLog = log;
@@ -483,28 +544,7 @@ public final class LauncherHelper {
 
             if (!lwjgl && (log.contains("LWJGL Version: ") || !detectWindow)) {
                 lwjgl = true;
-                switch (launcherVisibility) {
-                    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();
             }
         }
 
@@ -513,6 +553,9 @@ public final class LauncherHelper {
             if (exitType == ExitType.INTERRUPTED)
                 return;
 
+            // Game crashed before opening the game window.
+            if (!lwjgl) finishLaunch();
+
             if (exitType != ExitType.NORMAL && logWindow == null)
                 Platform.runLater(() -> {
                     logWindow = new LogWindow();

HMCL/src/main/java/org/jackhuang/hmcl/game/LoadingState.java

@@ -1,7 +1,7 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 

HMCL/src/main/java/org/jackhuang/hmcl/game/ModAdviser.java

@@ -1,7 +1,7 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 

HMCL/src/main/java/org/jackhuang/hmcl/game/ModpackHelper.java

@@ -1,7 +1,7 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 
@@ -23,35 +23,39 @@ import org.jackhuang.hmcl.mod.*;
 import org.jackhuang.hmcl.setting.EnumGameDirectory;
 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.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.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 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.
         }
@@ -85,49 +89,57 @@ public final class ModpackHelper {
     public static Task getInstallTask(Profile profile, File zipFile, String name, Modpack modpack) {
         profile.getRepository().markVersionAsModpack(name);
 
-        FinalizedCallback finalizeTask = (variables, isDependentsSucceeded) -> {
-            if (isDependentsSucceeded) {
+        ExceptionalRunnable<?> success = () -> {
+            HMCLGameRepository repository = profile.getRepository();
+            repository.refreshVersions();
+            VersionSetting vs = repository.specializeVersionSetting(name);
+            repository.undoMark(name);
+            if (vs != null)
+                vs.setGameDirType(EnumGameDirectory.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
+            } else {
                 HMCLGameRepository repository = profile.getRepository();
-                repository.refreshVersions();
-                VersionSetting vs = repository.specializeVersionSetting(name);
-                repository.undoMark(name);
-                if (vs != null)
-                    vs.setGameDirType(EnumGameDirectory.VERSION_FOLDER);
+                repository.removeVersionFromDisk(name);
             }
         };
 
         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)
+                    .finalized(Schedulers.defaultScheduler(), ExceptionalConsumer.fromRunnable(success), failure);
         else if (modpack.getManifest() instanceof HMCLModpackManifest)
             return new HMCLModpackInstallTask(profile, zipFile, modpack, name)
-                    .finalized(finalizeTask);
+                    .finalized(Schedulers.defaultScheduler(), ExceptionalConsumer.fromRunnable(success), failure);
         else if (modpack.getManifest() instanceof MultiMCInstanceConfiguration)
-            return new MultiMCModpackInstallTask(profile.getDependency(), zipFile, ((MultiMCInstanceConfiguration) modpack.getManifest()), name)
-                    .finalized(finalizeTask)
+            return new MultiMCModpackInstallTask(profile.getDependency(), zipFile, modpack, ((MultiMCInstanceConfiguration) modpack.getManifest()), name)
+                    .finalized(Schedulers.defaultScheduler(), ExceptionalConsumer.fromRunnable(success), failure)
                     .then(new MultiMCInstallVersionSettingTask(profile, ((MultiMCInstanceConfiguration) modpack.getManifest()), name));
         else throw new IllegalStateException("Unrecognized modpack: " + modpack);
     }
 
-    public static Task getUpdateTask(Profile profile, File zipFile, String name, ModpackConfiguration<?> configuration) throws UnsupportedModpackException, MismatchedModpackTypeException {
-        Modpack modpack = ModpackHelper.readModpackManifest(zipFile);
+    public static Task 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));
             default:
                 throw new UnsupportedModpackException();
         }

HMCL/src/main/java/org/jackhuang/hmcl/game/MultiMCInstallVersionSettingTask.java

@@ -1,7 +1,7 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 

HMCL/src/main/java/org/jackhuang/hmcl/setting/Accounts.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 
@@ -23,14 +23,16 @@ import javafx.beans.property.ReadOnlyListProperty;
 import javafx.beans.property.ReadOnlyListWrapper;
 import javafx.beans.property.SimpleObjectProperty;
 import javafx.collections.ObservableList;
-import org.jackhuang.hmcl.Launcher;
+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.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.offline.OfflineAccount;
 import org.jackhuang.hmcl.auth.offline.OfflineAccountFactory;
 import org.jackhuang.hmcl.auth.yggdrasil.MojangYggdrasilProvider;
@@ -39,6 +41,8 @@ import org.jackhuang.hmcl.auth.yggdrasil.YggdrasilAccountFactory;
 import org.jackhuang.hmcl.task.Schedulers;
 
 import java.io.IOException;
+import java.nio.file.Paths;
+import java.util.HashMap;
 import java.util.Map;
 import java.util.Optional;
 import java.util.logging.Level;
@@ -60,36 +64,39 @@ public final class Accounts {
 
     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(), DownloadProviders::getDownloadProvider)::getArtifactInfo,
-            Accounts::getOrCreateAuthlibInjectorServer);
+    public static final AuthlibInjectorAccountFactory FACTORY_AUTHLIB_INJECTOR = new AuthlibInjectorAccountFactory(createAuthlibInjectorArtifactProvider(), Accounts::getOrCreateAuthlibInjectorServer);
 
-    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_YGGDRASIL);
+        type2factory.put("authlibInjector", FACTORY_AUTHLIB_INJECTOR);
 
-    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));
-
-    private static String accountType(Account account) {
-        if (account instanceof OfflineAccount)
-            return TYPE_OFFLINE;
-        else if (account instanceof AuthlibInjectorAccount)
-            return TYPE_AUTHLIB_INJECTOR;
-        else if (account instanceof YggdrasilAccount)
-            return TYPE_YGGDRASIL_ACCOUNT;
-        else
-            throw new IllegalArgumentException("Failed to determine account type: " + account);
+        type2factory.forEach((type, factory) -> factory2type.put(factory, type));
     }
 
+    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) {
-        return type2factory.get(accountType(account));
-    }
-
-    static String accountId(Account account) {
-        return account.getUsername() + ":" + account.getCharacter();
+        if (account instanceof OfflineAccount)
+            return FACTORY_OFFLINE;
+        else if (account instanceof AuthlibInjectorAccount)
+            return FACTORY_AUTHLIB_INJECTOR;
+        else if (account instanceof YggdrasilAccount)
+            return FACTORY_YGGDRASIL;
+        else
+            throw new IllegalArgumentException("Failed to determine account type: " + account);
     }
 
     private static ObservableList<Account> accounts = observableArrayList(account -> new Observable[] { account });
@@ -126,7 +133,7 @@ public final class Accounts {
             // selection is valid, store it
             if (!initialized)
                 return;
-            config().setSelectedAccount(selected == null ? "" : accountId(selected));
+            updateAccountStorages();
         }
     };
 
@@ -139,9 +146,12 @@ 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;
     }
 
@@ -176,27 +186,38 @@ 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
-        Account selected = accounts.stream()
-                .filter(it -> accountId(it).equals(config().getSelectedAccount()))
-                .findFirst()
-                .orElse(null);
-        selectedAccount.set(selected);
-
-        Schedulers.io().schedule(() -> {
-            if (selected != null)
+        Account selected = selectedAccount.get();
+        if (selected != null) {
+            Schedulers.io().schedule(() -> {
                 try {
                     selected.logIn();
                 } catch (AuthenticationException e) {
                     LOG.log(Level.WARNING, "Failed to log " + selected + " in", e);
                 }
-        });
+            });
+        }
+
+        for (AuthlibInjectorServer server : config().getAuthlibInjectorServers()) {
+            if (selected instanceof AuthlibInjectorAccount && ((AuthlibInjectorAccount) selected).getServer() == server)
+                continue;
+            Schedulers.io().schedule(() -> {
+                try {
+                    server.fetchMetadataResponse();
+                } catch (IOException e) {
+                    LOG.log(Level.WARNING, "Failed to fetch authlib-injector server metdata: " + server, e);
+                }
+            });
+        }
     }
 
     public static ObservableList<Account> getAccounts() {
@@ -220,21 +241,22 @@ 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, DownloadProviders::getDownloadProvider);
+        } 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;
                 });
@@ -255,18 +277,14 @@ 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_YGGDRASIL, "account.methods.yggdrasil"),
+            pair(Accounts.FACTORY_AUTHLIB_INJECTOR, "account.methods.authlib_injector"));
 
-    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")));
     }
     // ====
 }

HMCL/src/main/java/org/jackhuang/hmcl/setting/Config.java

@@ -1,7 +1,7 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 
@@ -32,7 +32,7 @@ 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.Metadata;
 import org.jackhuang.hmcl.auth.authlibinjector.AuthlibInjectorServer;
 import org.jackhuang.hmcl.upgrade.UpdateChannel;
 import org.jackhuang.hmcl.util.gson.EnumOrdinalDeserializer;
@@ -40,36 +40,37 @@ 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.lang.reflect.Modifier;
 import java.net.Proxy;
 import java.util.Map;
 import java.util.TreeMap;
-import java.util.stream.Stream;
 
 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;
     }
 
@@ -86,7 +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();
@@ -101,7 +102,7 @@ public final class Config implements Cloneable, Observable {
     private StringProperty proxyHost = new SimpleStringProperty();
 
     @SerializedName("proxyPort")
-    private StringProperty proxyPort = new SimpleStringProperty();
+    private IntegerProperty proxyPort = new SimpleIntegerProperty();
 
     @SerializedName("proxyUserName")
     private StringProperty proxyUser = new SimpleStringProperty();
@@ -124,9 +125,6 @@ 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");
 
@@ -137,7 +135,7 @@ 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);
@@ -145,27 +143,26 @@ 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
@@ -296,15 +293,15 @@ 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;
     }
 
@@ -376,18 +373,6 @@ 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();
     }
@@ -440,4 +425,39 @@ public final class Config implements Cloneable, Observable {
         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;
+    }
 }

HMCL/src/main/java/org/jackhuang/hmcl/setting/ConfigHolder.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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 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 +31,6 @@ import java.nio.file.Paths;
 import java.util.Map;
 import java.util.logging.Level;
 
-import org.jackhuang.hmcl.util.InvocationDispatcher;
-import org.jackhuang.hmcl.util.Lang;
-import org.jackhuang.hmcl.util.platform.OperatingSystem;
-
 import static java.nio.charset.StandardCharsets.UTF_8;
 import static org.jackhuang.hmcl.util.Logging.LOG;
 
@@ -52,13 +52,6 @@ public final class ConfigHolder {
         return configInstance;
     }
 
-    public static boolean isNewlyCreated() {
-        if (configInstance == null) {
-            throw new IllegalStateException("Configuration hasn't been loaded");
-        }
-        return newlyCreated;
-    }
-
     public synchronized static void init() throws IOException {
         if (configInstance != null) {
             throw new IllegalStateException("Configuration is already loaded");
@@ -106,7 +99,7 @@ public final class ConfigHolder {
     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");

HMCL/src/main/java/org/jackhuang/hmcl/setting/ConfigUpgrader.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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.gson.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)));
-                });
             });
         });
     }
@@ -98,5 +108,22 @@ final class ConfigUpgrader {
                         }
                     });
         }
+
+        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));
+                });
     }
 }

HMCL/src/main/java/org/jackhuang/hmcl/setting/DownloadProviders.java

@@ -1,7 +1,7 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 

HMCL/src/main/java/org/jackhuang/hmcl/setting/EnumBackgroundImage.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 

HMCL/src/main/java/org/jackhuang/hmcl/setting/EnumCommonDirectory.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2017  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 

HMCL/src/main/java/org/jackhuang/hmcl/setting/EnumGameDirectory.java

@@ -1,7 +1,7 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 

HMCL/src/main/java/org/jackhuang/hmcl/setting/LauncherVisibility.java

@@ -1,7 +1,7 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 

HMCL/src/main/java/org/jackhuang/hmcl/setting/Profile.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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 +13,13 @@
  * 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 com.jfoenix.concurrency.JFXUtilities;
 import javafx.application.Platform;
 import javafx.beans.InvalidationListener;
 import javafx.beans.Observable;
@@ -46,6 +48,7 @@ import static org.jackhuang.hmcl.ui.FXUtils.onInvalidating;
  *
  * @author huangyuhui
  */
+@JsonAdapter(Profile.Serializer.class)
 public final class Profile implements Observable {
     private final WeakListenerHolder listenerHolder = new WeakListenerHolder();
     private final HMCLGameRepository repository;
@@ -146,15 +149,17 @@ public final class Profile implements Observable {
     }
 
     private void checkSelectedVersion() {
-        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);
-        }
+        JFXUtilities.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() {
@@ -214,11 +219,6 @@ public final class Profile implements Observable {
     }
 
     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)

HMCL/src/main/java/org/jackhuang/hmcl/setting/Profiles.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 
@@ -22,7 +22,7 @@ import javafx.application.Platform;
 import javafx.beans.Observable;
 import javafx.beans.property.*;
 import javafx.collections.ObservableList;
-import org.jackhuang.hmcl.Launcher;
+import org.jackhuang.hmcl.Metadata;
 import org.jackhuang.hmcl.event.EventBus;
 import org.jackhuang.hmcl.event.RefreshedVersionsEvent;
 
@@ -104,7 +104,7 @@ public final class Profiles {
     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, Launcher.MINECRAFT_DIRECTORY);
+            Profile home = new Profile(Profiles.HOME_PROFILE, Metadata.MINECRAFT_DIRECTORY.toFile());
             Platform.runLater(() -> profiles.addAll(current, home));
         }
     }

HMCL/src/main/java/org/jackhuang/hmcl/setting/ProxyManager.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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
@@ -13,14 +13,13 @@
  * 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.binding.Bindings;
 import javafx.beans.binding.ObjectBinding;
 import javafx.beans.value.ObservableObjectValue;
-import org.jackhuang.hmcl.util.Lang;
 import org.jackhuang.hmcl.util.StringUtils;
 
 import java.net.Authenticator;
@@ -30,6 +29,7 @@ import java.net.Proxy;
 import java.net.Proxy.Type;
 
 import static org.jackhuang.hmcl.setting.ConfigHolder.config;
+import static org.jackhuang.hmcl.util.Logging.LOG;
 
 public final class ProxyManager {
     private ProxyManager() {
@@ -49,10 +49,14 @@ public final class ProxyManager {
         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) {
+                    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));
                     }
                 },

HMCL/src/main/java/org/jackhuang/hmcl/setting/Settings.java

@@ -1,7 +1,7 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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
@@ -13,17 +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.setting;
 
 import javafx.beans.binding.Bindings;
-import org.jackhuang.hmcl.Launcher;
+import org.jackhuang.hmcl.Metadata;
 import org.jackhuang.hmcl.game.HMCLCacheRepository;
 import org.jackhuang.hmcl.util.CacheRepository;
-
-import java.nio.file.InvalidPathException;
-import java.nio.file.Paths;
+import org.jackhuang.hmcl.util.io.FileUtils;
 
 import static org.jackhuang.hmcl.setting.ConfigHolder.config;
 
@@ -53,18 +51,16 @@ public class Settings {
 
         CacheRepository.setInstance(HMCLCacheRepository.REPOSITORY);
         HMCLCacheRepository.REPOSITORY.directoryProperty().bind(Bindings.createStringBinding(() -> {
-            String str = getCommonDirectory();
-            try {
-                Paths.get(str);
-                return str;
-            } catch (InvalidPathException e) {
+            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() {

HMCL/src/main/java/org/jackhuang/hmcl/setting/Theme.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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 +13,11 @@
  * 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;
 
+import com.google.gson.annotations.JsonAdapter;
 import com.google.gson.stream.JsonReader;
 import com.google.gson.stream.JsonWriter;
 import javafx.beans.binding.Bindings;
@@ -34,6 +35,7 @@ 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");
 
@@ -43,7 +45,7 @@ public class Theme {
             Color.web("#43A047"), // green
             Color.web("#E67E22"), // orange
             Color.web("#9C27B0"), // purple
-            Color.web("#F44336")  // red
+            Color.web("#B71C1C")  // red
     };
 
     private final String color;
@@ -82,14 +84,14 @@ public class Theme {
                     .replace("%base-color%", color)
                     .replace("%font-color%", getColorDisplayName(getForegroundColor())));
             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"
         };
     }
 

HMCL/src/main/java/org/jackhuang/hmcl/setting/VersionSetting.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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 +13,13 @@
  * 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 org.jackhuang.hmcl.Metadata;
 import org.jackhuang.hmcl.game.LaunchOptions;
@@ -43,6 +45,7 @@ import static org.jackhuang.hmcl.setting.ConfigHolder.config;
  *
  * @author huangyuhui
  */
+@JsonAdapter(VersionSetting.Serializer.class)
 public final class VersionSetting {
 
     public transient String id;
@@ -277,6 +280,23 @@ public final class VersionSetting {
         noJVMArgsProperty.set(noJVMArgs);
     }
 
+    private final ImmediateBooleanProperty notCheckJVMProperty = new ImmediateBooleanProperty(this, "notCheckJVM", false);
+
+    public ImmediateBooleanProperty 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 ImmediateBooleanProperty notCheckGameProperty = new ImmediateBooleanProperty(this, "notCheckGame", false);
 
     public ImmediateBooleanProperty notCheckGameProperty() {
@@ -494,6 +514,7 @@ 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);
@@ -507,7 +528,7 @@ public final class VersionSetting {
 
     public LaunchOptions toLaunchOptions(File gameDir) throws InterruptedException {
         JavaVersion javaVersion = Optional.ofNullable(getJavaVersion()).orElse(JavaVersion.fromCurrentEnvironment());
-        return new LaunchOptions.Builder()
+        LaunchOptions.Builder builder = new LaunchOptions.Builder()
                 .setGameDir(gameDir)
                 .setJava(javaVersion)
                 .setVersionName(Metadata.TITLE)
@@ -522,21 +543,20 @@ public final class VersionSetting {
                 .setFullscreen(isFullscreen())
                 .setServerIp(getServerIp())
                 .setWrapper(getWrapper())
-                .setProxyHost(config().getProxyHost())
-                .setProxyPort(config().getProxyPort())
-                .setProxyUser(config().getProxyUser())
-                .setProxyPass(config().getProxyPass())
                 .setPrecalledCommand(getPreLaunchCommand())
-                .setNoGeneratedJVMArgs(isNoJVMArgs())
-                .create();
+                .setNoGeneratedJVMArgs(isNoJVMArgs());
+        if (config().hasProxy()) {
+            builder.setProxyHost(config().getProxyHost());
+            builder.setProxyPort(config().getProxyPort());
+            if (config().hasProxyAuth()) {
+                builder.setProxyUser(config().getProxyUser());
+                builder.setProxyPass(config().getProxyPass());
+            }
+        }
+        return builder.create();
     }
 
     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;
@@ -558,6 +578,7 @@ 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());
@@ -595,6 +616,7 @@ public final class VersionSetting {
             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)]);

HMCL/src/main/java/org/jackhuang/hmcl/ui/Controllers.java

@@ -1,7 +1,7 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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
@@ -13,10 +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;
 
+import com.jfoenix.concurrency.JFXUtilities;
 import javafx.scene.Node;
 import javafx.scene.Scene;
 import javafx.scene.image.Image;
@@ -24,26 +25,39 @@ import javafx.scene.layout.Region;
 import javafx.stage.Stage;
 import org.jackhuang.hmcl.Launcher;
 import org.jackhuang.hmcl.Metadata;
+import org.jackhuang.hmcl.game.HMCLGameRepository;
+import org.jackhuang.hmcl.game.Version;
 import org.jackhuang.hmcl.setting.Accounts;
+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.AccountList;
 import org.jackhuang.hmcl.ui.account.AuthlibInjectorServersPage;
-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.TaskExecutorDialogPane;
+import org.jackhuang.hmcl.ui.construct.*;
 import org.jackhuang.hmcl.ui.decorator.DecoratorController;
+import org.jackhuang.hmcl.ui.download.ModpackInstallWizardProvider;
 import org.jackhuang.hmcl.ui.profile.ProfileList;
+import org.jackhuang.hmcl.ui.versions.GameItem;
 import org.jackhuang.hmcl.ui.versions.GameList;
 import org.jackhuang.hmcl.ui.versions.VersionPage;
+import org.jackhuang.hmcl.upgrade.UpdateChecker;
 import org.jackhuang.hmcl.util.FutureCallback;
+import org.jackhuang.hmcl.util.Logging;
+import org.jackhuang.hmcl.util.io.FileUtils;
+import org.jackhuang.hmcl.util.javafx.MultiStepBinding;
 import org.jackhuang.hmcl.util.platform.JavaVersion;
+import org.jackhuang.hmcl.util.versioning.VersionNumber;
 
+import java.io.File;
+import java.util.Comparator;
+import java.util.Date;
+import java.util.List;
 import java.util.function.Consumer;
+import java.util.stream.Collectors;
 
 import static org.jackhuang.hmcl.setting.ConfigHolder.config;
+import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
 
 public final class Controllers {
 
@@ -84,9 +98,10 @@ public final class Controllers {
     // FXThread
     public static AccountList getAccountListPage() {
         if (accountListPage == null) {
-            accountListPage = new AccountList();
+            AccountList accountListPage = new AccountList();
             accountListPage.selectedAccountProperty().bindBidirectional(Accounts.selectedAccountProperty());
             accountListPage.accountsProperty().bindContent(Accounts.accountsProperty());
+            Controllers.accountListPage = accountListPage;
         }
         return accountListPage;
     }
@@ -94,9 +109,10 @@ public final class Controllers {
     // FXThread
     public static ProfileList getProfileListPage() {
         if (profileListPage == null) {
-            profileListPage = new ProfileList();
+            ProfileList profileListPage = new ProfileList();
             profileListPage.selectedProfileProperty().bindBidirectional(Profiles.selectedProfileProperty());
             profileListPage.profilesProperty().bindContent(Profiles.profilesProperty());
+            Controllers.profileListPage = profileListPage;
         }
         return profileListPage;
     }
@@ -121,8 +137,44 @@ public final class Controllers {
     }
 
     public static MainPage getMainPage() {
-        if (mainPage == null)
-            mainPage = new MainPage();
+        if (mainPage == null) {
+            MainPage mainPage = new MainPage();
+            FXUtils.applyDragListener(mainPage, it -> "zip".equals(FileUtils.getExtension(it)), modpacks -> {
+                File modpack = modpacks.get(0);
+                Controllers.getDecorator().startWizard(new ModpackInstallWizardProvider(Profiles.getSelectedProfile(), modpack), i18n("install.modpack"));
+            });
+
+            FXUtils.onChangeAndOperate(Profiles.selectedVersionProperty(), version -> {
+                if (version != null) {
+                    mainPage.setCurrentGame(version);
+                } else {
+                    mainPage.setCurrentGame(i18n("version.empty"));
+                }
+            });
+            mainPage.showUpdateProperty().bind(UpdateChecker.outdatedProperty());
+            mainPage.latestVersionProperty().bind(
+                    MultiStepBinding.of(UpdateChecker.latestVersionProperty())
+                            .map(version -> version == null ? "" : i18n("update.bubble.title", version.getVersion())));
+
+            Profiles.registerVersionsListener(profile -> {
+                HMCLGameRepository repository = profile.getRepository();
+                List<Node> children = repository.getVersions().parallelStream()
+                        .filter(version -> !version.isHidden())
+                        .sorted(Comparator.comparing((Version version) -> version.getReleaseTime() == null ? new Date(0L) : version.getReleaseTime())
+                                .thenComparing(a -> VersionNumber.asVersion(a.getId())))
+                        .map(version -> {
+                            Node node = PopupMenu.wrapPopupMenuItem(new GameItem(profile, version.getId()));
+                            node.setOnMouseClicked(e -> profile.setSelectedVersion(version.getId()));
+                            return node;
+                        })
+                        .collect(Collectors.toList());
+                JFXUtilities.runInFX(() -> {
+                    if (profile == Profiles.getSelectedProfile())
+                        mainPage.getVersions().setAll(children);
+                });
+            });
+            Controllers.mainPage = mainPage;
+        }
         return mainPage;
     }
 
@@ -131,6 +183,8 @@ public final class Controllers {
     }
 
     public static void initialize(Stage stage) {
+        Logging.LOG.info("Start initializing application");
+
         Controllers.stage = stage;
 
         stage.setOnCloseRequest(e -> Launcher.stopApplication());
@@ -139,6 +193,12 @@ public final class Controllers {
         leftPaneController = new LeftPaneController();
         decorator.getDecorator().drawerProperty().setAll(leftPaneController);
 
+        if (config().getCommonDirType() == EnumCommonDirectory.CUSTOM &&
+                !FileUtils.canCreateDirectory(config().getCommonDirectory())) {
+            config().setCommonDirType(EnumCommonDirectory.DEFAULT);
+            dialog(i18n("launcher.cache_directory.invalid"));
+        }
+
         Task.of(JavaVersion::initialize).start();
 
         scene = new Scene(decorator.getDecorator(), 800, 519);
@@ -179,6 +239,10 @@ public final class Controllers {
         return pane;
     }
 
+    public static Region taskDialog(TaskExecutor executor, String title) {
+        return taskDialog(executor, title, "");
+    }
+
     public static Region taskDialog(TaskExecutor executor, String title, String subtitle) {
         return taskDialog(executor, title, subtitle, null);
     }

HMCL/src/main/java/org/jackhuang/hmcl/ui/CrashWindow.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 

HMCL/src/main/java/org/jackhuang/hmcl/ui/DialogController.java

@@ -1,7 +1,7 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 

HMCL/src/main/java/org/jackhuang/hmcl/ui/FXUtils.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 
@@ -37,6 +37,7 @@ import javafx.scene.control.*;
 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;
@@ -50,11 +51,13 @@ import org.jackhuang.hmcl.util.javafx.ExtendedProperties;
 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.List;
 import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.atomic.AtomicReference;
 import java.util.function.BooleanSupplier;
@@ -62,6 +65,7 @@ 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;
@@ -445,6 +449,34 @@ public final class FXUtils {
         }
     }
 
+    public static void applyDragListener(Node node, FileFilter filter, Consumer<List<File>> callback) {
+        applyDragListener(node, filter, callback, null);
+    }
+
+    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();
+        });
+
+        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) {
         return new StringConverter<T>() {
 

HMCL/src/main/java/org/jackhuang/hmcl/ui/InstallerItem.java

@@ -1,7 +1,7 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 

HMCL/src/main/java/org/jackhuang/hmcl/ui/LeftPaneController.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 
@@ -26,7 +26,6 @@ import org.jackhuang.hmcl.event.RefreshedVersionsEvent;
 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.Accounts;
 import org.jackhuang.hmcl.setting.Profile;
 import org.jackhuang.hmcl.setting.Profiles;
@@ -37,10 +36,10 @@ import org.jackhuang.hmcl.ui.account.AccountAdvancedListItem;
 import org.jackhuang.hmcl.ui.account.AddAccountPane;
 import org.jackhuang.hmcl.ui.construct.AdvancedListBox;
 import org.jackhuang.hmcl.ui.construct.AdvancedListItem;
-import org.jackhuang.hmcl.ui.construct.DialogCloseEvent;
 import org.jackhuang.hmcl.ui.profile.ProfileAdvancedListItem;
 import org.jackhuang.hmcl.ui.versions.GameAdvancedListItem;
 import org.jackhuang.hmcl.ui.versions.Versions;
+import org.jackhuang.hmcl.util.io.CompressingUtils;
 
 import java.io.File;
 import java.util.concurrent.atomic.AtomicReference;
@@ -111,7 +110,6 @@ public final class LeftPaneController extends AdvancedListBox {
     // ====
 
     private boolean checkedModpack = false;
-    private static boolean showNewAccount = true;
 
     private void onRefreshedVersions(HMCLGameRepository repository) {
         JFXUtilities.runInFX(() -> {
@@ -121,27 +119,21 @@ public final class LeftPaneController extends AdvancedListBox {
                 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) {
-                        }
+                        Task.ofResult("encoding", () -> CompressingUtils.findSuitableEncoding(modpackFile.toPath()))
+                                .then(Task.ofResult("modpack", var -> ModpackHelper.readModpackManifest(modpackFile.toPath(), var.get("encoding"))))
+                                .then(Task.of(var -> {
+                                    AtomicReference<Region> region = new AtomicReference<>();
+                                    Modpack modpack = var.get("modpack");
+                                    TaskExecutor executor = ModpackHelper.getInstallTask(repository.getProfile(), modpackFile, modpack.getName(), modpack)
+                                            .with(Task.of(Schedulers.javafx(), this::checkAccount)).executor();
+                                    region.set(Controllers.taskDialog(executor, i18n("modpack.installing")));
+                                    executor.start();
+                                })).start();
                     }
                 }
             }
 
-            if (showNewAccount) {
-                showNewAccount = false;
-                checkAccount();
-            }
+            checkAccount();
         });
     }
 }

HMCL/src/main/java/org/jackhuang/hmcl/ui/ListPage.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2017  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 
@@ -30,9 +30,13 @@ import javafx.scene.control.Skin;
 public abstract class ListPage<T extends Node> extends Control {
     private final ListProperty<T> items = new SimpleListProperty<>(this, "items", FXCollections.observableArrayList());
     private final BooleanProperty loading = new SimpleBooleanProperty(this, "loading", false);
+    private final BooleanProperty refreshable = new SimpleBooleanProperty(this, "refreshable", false);
 
     public abstract void add();
 
+    public void refresh() {
+    }
+
     @Override
     protected Skin<?> createDefaultSkin() {
         return new ListPageSkin(this);
@@ -61,4 +65,16 @@ public abstract class ListPage<T extends Node> extends Control {
     public BooleanProperty loadingProperty() {
         return loading;
     }
+
+    public boolean isRefreshable() {
+        return refreshable.get();
+    }
+
+    public BooleanProperty refreshableProperty() {
+        return refreshable;
+    }
+
+    public void setRefreshable(boolean refreshable) {
+        this.refreshable.set(refreshable);
+    }
 }

HMCL/src/main/java/org/jackhuang/hmcl/ui/ListPageSkin.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2017  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 
@@ -46,14 +46,14 @@ public class ListPageSkin extends SkinBase<ListPage> {
             {
                 scrollPane.setFitToWidth(true);
 
-                VBox accountList = new VBox();
-                accountList.maxWidthProperty().bind(scrollPane.widthProperty());
-                accountList.setSpacing(10);
-                accountList.setStyle("-fx-padding: 10 10 10 10;");
+                VBox list = new VBox();
+                list.maxWidthProperty().bind(scrollPane.widthProperty());
+                list.setSpacing(10);
+                list.setPadding(new Insets(10));
 
-                Bindings.bindContent(accountList.getChildren(), skinnable.itemsProperty());
+                Bindings.bindContent(list.getChildren(), skinnable.itemsProperty());
 
-                scrollPane.setContent(accountList);
+                scrollPane.setContent(list);
                 JFXScrollPane.smoothScrolling(scrollPane);
             }
 
@@ -72,7 +72,21 @@ public class ListPageSkin extends SkinBase<ListPage> {
                 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().setAll("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) vBox.getChildren().setAll(btnRefresh, btnAdd);
+                            else vBox.getChildren().setAll(btnAdd);
+                        });
             }
 
             contentPane.getChildren().setAll(scrollPane, vBox);

HMCL/src/main/java/org/jackhuang/hmcl/ui/LogWindow.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 

HMCL/src/main/java/org/jackhuang/hmcl/ui/MainPage.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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
@@ -13,47 +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.ui;
 
-import com.jfoenix.concurrency.JFXUtilities;
 import com.jfoenix.controls.JFXButton;
 import com.jfoenix.controls.JFXPopup;
-import javafx.animation.Interpolator;
 import javafx.animation.KeyFrame;
 import javafx.animation.KeyValue;
 import javafx.animation.Timeline;
-import javafx.beans.property.ReadOnlyStringProperty;
-import javafx.beans.property.ReadOnlyStringWrapper;
-import javafx.fxml.FXML;
+import javafx.beans.binding.Bindings;
+import javafx.beans.property.*;
+import javafx.collections.FXCollections;
+import javafx.collections.ObservableList;
+import javafx.geometry.Insets;
 import javafx.geometry.Pos;
 import javafx.scene.Node;
 import javafx.scene.control.Label;
+import javafx.scene.layout.HBox;
 import javafx.scene.layout.StackPane;
+import javafx.scene.layout.VBox;
+import javafx.scene.paint.Color;
 import javafx.scene.shape.Rectangle;
 import javafx.util.Duration;
-import org.jackhuang.hmcl.game.HMCLGameRepository;
-import org.jackhuang.hmcl.game.Version;
 import org.jackhuang.hmcl.setting.Profile;
 import org.jackhuang.hmcl.setting.Profiles;
 import org.jackhuang.hmcl.setting.Theme;
 import org.jackhuang.hmcl.ui.construct.PopupMenu;
-import org.jackhuang.hmcl.ui.construct.RipplerContainer;
 import org.jackhuang.hmcl.ui.construct.TwoLineListItem;
 import org.jackhuang.hmcl.ui.decorator.DecoratorPage;
-import org.jackhuang.hmcl.ui.versions.GameItem;
 import org.jackhuang.hmcl.ui.versions.Versions;
 import org.jackhuang.hmcl.upgrade.RemoteVersion;
 import org.jackhuang.hmcl.upgrade.UpdateChecker;
 import org.jackhuang.hmcl.upgrade.UpdateHandler;
-import org.jackhuang.hmcl.util.javafx.MultiStepBinding;
-import org.jackhuang.hmcl.util.versioning.VersionNumber;
-
-import java.util.Comparator;
-import java.util.List;
-import java.util.stream.Collectors;
 
+import static org.jackhuang.hmcl.ui.FXUtils.SINE;
 import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
 
 public final class MainPage extends StackPane implements DecoratorPage {
@@ -62,109 +56,142 @@ public final class MainPage extends StackPane implements DecoratorPage {
     private final PopupMenu menu = new PopupMenu();
     private final JFXPopup popup = new JFXPopup(menu);
 
-    @FXML
-    private StackPane main;
-    @FXML
+    private final StringProperty currentGame = new SimpleStringProperty(this, "currentGame");
+    private final BooleanProperty showUpdate = new SimpleBooleanProperty(this, "showUpdate");
+    private final StringProperty latestVersion = new SimpleStringProperty(this, "latestVersion");
+    private final ObservableList<Node> versions = FXCollections.observableArrayList();
+
     private StackPane updatePane;
-    @FXML
-    private JFXButton btnLaunch;
-    @FXML
-    private JFXButton btnMenu;
-    @FXML
-    private JFXButton closeUpdateButton;
-    @FXML
-    private Label lblCurrentGame;
-    @FXML
-    private Label lblIcon;
-    @FXML
-    private TwoLineListItem lblLatestVersion;
-    @FXML
-    private Rectangle separator;
+    private JFXButton menuButton;
 
     {
-        FXUtils.loadFXML(this, "/assets/fxml/main.fxml");
+        setPadding(new Insets(25));
 
-        btnLaunch.setClip(new Rectangle(-100, -100, 310, 200));
-        btnMenu.setClip(new Rectangle(211, -100, 100, 200));
-        menu.setMaxHeight(365);
-        menu.setMinWidth(545);
+        updatePane = new StackPane();
+        updatePane.setVisible(false);
+        updatePane.getStyleClass().add("bubble");
+        FXUtils.setLimitWidth(updatePane, 230);
+        FXUtils.setLimitHeight(updatePane, 55);
+        StackPane.setAlignment(updatePane, Pos.TOP_RIGHT);
+        updatePane.setOnMouseClicked(e -> onUpgrade());
+        FXUtils.onChange(showUpdateProperty(), this::doAnimation);
 
-        updatePane.visibleProperty().bind(UpdateChecker.outdatedProperty());
-        closeUpdateButton.setGraphic(SVG.close(Theme.whiteFillBinding(), 10, 10));
-        closeUpdateButton.setOnMouseClicked(event -> {
-            Duration duration = Duration.millis(320);
-            Timeline nowAnimation = new Timeline();
-            nowAnimation.getKeyFrames().addAll(
-                    new KeyFrame(Duration.ZERO,
-                            new KeyValue(updatePane.translateXProperty(), 0, Interpolator.EASE_IN)),
-                    new KeyFrame(duration,
-                            new KeyValue(updatePane.translateXProperty(), 260, Interpolator.EASE_IN)),
-                    new KeyFrame(duration, e -> {
-                updatePane.visibleProperty().unbind();
-                updatePane.setVisible(false);
-            }));
-            nowAnimation.play();
-        });
-        lblIcon.setGraphic(SVG.update(Theme.whiteFillBinding(), 20, 20));
-        lblLatestVersion.titleProperty().bind(
-                MultiStepBinding.of(UpdateChecker.latestVersionProperty())
-                        .map(version -> version == null ? "" : i18n("update.bubble.title", version.getVersion())));
+        {
+            HBox hBox = new HBox();
+            hBox.setSpacing(12);
+            hBox.setAlignment(Pos.CENTER_LEFT);
+            StackPane.setAlignment(hBox, Pos.CENTER_LEFT);
+            StackPane.setMargin(hBox, new Insets(9, 12, 9, 16));
+            {
+                Label lblIcon = new Label();
+                lblIcon.setGraphic(SVG.update(Theme.whiteFillBinding(), 20, 20));
 
-        StackPane graphic = new StackPane();
-        Node svg = SVG.triangle(Theme.whiteFillBinding(), 10, 10);
-        StackPane.setAlignment(svg, Pos.CENTER_RIGHT);
-        graphic.getChildren().setAll(svg);
-        graphic.setTranslateX(12);
-        btnMenu.setGraphic(graphic);
+                TwoLineListItem prompt = new TwoLineListItem();
+                prompt.setTitleFill(Color.WHITE);
+                prompt.setSubtitleFill(Color.WHITE);
+                prompt.setSubtitle(i18n("update.bubble.subtitle"));
+                prompt.setPickOnBounds(false);
+                prompt.setStyle("-jfx-title-font-weight: BOLD;");
+                prompt.titleProperty().bind(latestVersionProperty());
 
-        FXUtils.onChangeAndOperate(Profiles.selectedVersionProperty(), version -> {
-            if (version != null) {
-                lblCurrentGame.setText(version);
-            } else {
-                lblCurrentGame.setText(i18n("version.empty"));
+                hBox.getChildren().setAll(lblIcon, prompt);
             }
-        });
 
-        Profiles.registerVersionsListener(this::loadVersions);
+            JFXButton closeUpdateButton = new JFXButton();
+            closeUpdateButton.setGraphic(SVG.close(Theme.whiteFillBinding(), 10, 10));
+            StackPane.setAlignment(closeUpdateButton, Pos.TOP_RIGHT);
+            closeUpdateButton.getStyleClass().add("toggle-icon-tiny");
+            StackPane.setMargin(closeUpdateButton, new Insets(5));
+            closeUpdateButton.setOnMouseClicked(e -> closeUpdateBubble());
+
+            updatePane.getChildren().setAll(hBox, closeUpdateButton);
+        }
+
+        StackPane launchPane = new StackPane();
+        launchPane.setMaxWidth(230);
+        launchPane.setMaxHeight(55);
+        StackPane.setAlignment(launchPane, Pos.BOTTOM_RIGHT);
+        {
+            JFXButton launchButton = new JFXButton();
+            launchButton.setPrefWidth(230);
+            launchButton.setPrefHeight(55);
+            launchButton.setButtonType(JFXButton.ButtonType.RAISED);
+            launchButton.getStyleClass().add("jfx-button-raised");
+            launchButton.setOnMouseClicked(e -> launch());
+            launchButton.setClip(new Rectangle(-100, -100, 310, 200));
+            {
+                VBox graphic = new VBox();
+                graphic.setAlignment(Pos.CENTER);
+                graphic.setTranslateX(-7);
+                graphic.setMaxWidth(200);
+                Label launchLabel = new Label(i18n("version.launch"));
+                launchLabel.setStyle("-fx-font-size: 16px;");
+                Label currentLabel = new Label();
+                currentLabel.setStyle("-fx-font-size: 12px;");
+                currentLabel.textProperty().bind(currentGameProperty());
+                graphic.getChildren().setAll(launchLabel, currentLabel);
+
+                launchButton.setGraphic(graphic);
+            }
+
+            Rectangle separator = new Rectangle();
+            separator.getStyleClass().add("darker-fill");
+            separator.setWidth(1);
+            separator.setHeight(57);
+            separator.setTranslateX(95);
+            separator.setMouseTransparent(true);
+
+            menuButton = new JFXButton();
+            menuButton.setPrefHeight(55);
+            menuButton.setPrefWidth(230);
+            menuButton.setButtonType(JFXButton.ButtonType.RAISED);
+            menuButton.getStyleClass().add("jfx-button-raised");
+            menuButton.setStyle("-fx-font-size: 15px;");
+            menuButton.setOnMouseClicked(e -> onMenu());
+            menuButton.setClip(new Rectangle(211, -100, 100, 200));
+            StackPane graphic = new StackPane();
+            Node svg = SVG.triangle(Theme.whiteFillBinding(), 10, 10);
+            StackPane.setAlignment(svg, Pos.CENTER_RIGHT);
+            graphic.getChildren().setAll(svg);
+            graphic.setTranslateX(12);
+            menuButton.setGraphic(graphic);
+
+            launchPane.getChildren().setAll(launchButton, separator, menuButton);
+        }
+
+        getChildren().setAll(updatePane, launchPane);
+
+        menu.setMaxHeight(365);
+        menu.setMaxWidth(545);
+        menu.setAlwaysShowingVBar(true);
+        menu.setOnMouseClicked(e -> popup.hide());
+        Bindings.bindContent(menu.getContent(), versions);
     }
 
-    private void loadVersions(Profile profile) {
-        HMCLGameRepository repository = profile.getRepository();
-        List<Node> children = repository.getVersions().parallelStream()
-                .filter(version -> !version.isHidden())
-                .sorted(Comparator.comparing(Version::getReleaseTime).thenComparing(a -> VersionNumber.asVersion(a.getId())))
-                .map(version -> {
-                    StackPane pane = new StackPane();
-                    GameItem item = new GameItem(profile, version.getId());
-                    pane.getChildren().setAll(item);
-                    pane.getStyleClass().setAll("menu-container");
-                    item.setMouseTransparent(true);
-                    RipplerContainer container = new RipplerContainer(pane);
-                    container.setOnMouseClicked(e -> {
-                        profile.setSelectedVersion(version.getId());
-                        popup.hide();
-                    });
-                    return container;
-                })
-                .collect(Collectors.toList());
-        JFXUtilities.runInFX(() -> {
-            if (profile == Profiles.getSelectedProfile())
-                menu.getContent().setAll(children);
-        });
+    private void doAnimation(boolean show) {
+        Duration duration = Duration.millis(320);
+        Timeline nowAnimation = new Timeline();
+        nowAnimation.getKeyFrames().addAll(
+                new KeyFrame(Duration.ZERO,
+                        new KeyValue(updatePane.translateXProperty(), show ? 260 : 0, SINE)),
+                new KeyFrame(duration,
+                        new KeyValue(updatePane.translateXProperty(), show ? 0 : 260, SINE)));
+        if (show) nowAnimation.getKeyFrames().add(
+                new KeyFrame(Duration.ZERO, e -> updatePane.setVisible(true)));
+        else nowAnimation.getKeyFrames().add(
+                new KeyFrame(duration, e -> updatePane.setVisible(false)));
+        nowAnimation.play();
     }
 
-    @FXML
     private void launch() {
         Profile profile = Profiles.getSelectedProfile();
         Versions.launch(profile, profile.getSelectedVersion());
     }
 
-    @FXML
     private void onMenu() {
-        popup.show(btnMenu, JFXPopup.PopupVPosition.BOTTOM, JFXPopup.PopupHPosition.RIGHT, 0, -btnMenu.getHeight());
+        popup.show(menuButton, JFXPopup.PopupVPosition.BOTTOM, JFXPopup.PopupHPosition.RIGHT, 0, -menuButton.getHeight());
     }
 
-    @FXML
     private void onUpgrade() {
         RemoteVersion target = UpdateChecker.getLatestVersion();
         if (target == null) {
@@ -173,6 +200,11 @@ public final class MainPage extends StackPane implements DecoratorPage {
         UpdateHandler.updateFrom(target);
     }
 
+    private void closeUpdateBubble() {
+        showUpdate.unbind();
+        showUpdate.set(false);
+    }
+
     public String getTitle() {
         return title.get();
     }
@@ -185,4 +217,44 @@ public final class MainPage extends StackPane implements DecoratorPage {
     public void setTitle(String title) {
         this.title.set(title);
     }
+
+    public String getCurrentGame() {
+        return currentGame.get();
+    }
+
+    public StringProperty currentGameProperty() {
+        return currentGame;
+    }
+
+    public void setCurrentGame(String currentGame) {
+        this.currentGame.set(currentGame);
+    }
+
+    public boolean isShowUpdate() {
+        return showUpdate.get();
+    }
+
+    public BooleanProperty showUpdateProperty() {
+        return showUpdate;
+    }
+
+    public void setShowUpdate(boolean showUpdate) {
+        this.showUpdate.set(showUpdate);
+    }
+
+    public String getLatestVersion() {
+        return latestVersion.get();
+    }
+
+    public StringProperty latestVersionProperty() {
+        return latestVersion;
+    }
+
+    public void setLatestVersion(String latestVersion) {
+        this.latestVersion.set(latestVersion);
+    }
+
+    public ObservableList<Node> getVersions() {
+        return versions;
+    }
 }

HMCL/src/main/java/org/jackhuang/hmcl/ui/SVG.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 

HMCL/src/main/java/org/jackhuang/hmcl/ui/SafeIntStringConverter.java

@@ -1,7 +1,7 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 

HMCL/src/main/java/org/jackhuang/hmcl/ui/SettingsPage.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 
@@ -24,27 +24,40 @@ import javafx.beans.InvalidationListener;
 import javafx.beans.WeakInvalidationListener;
 import javafx.beans.binding.Bindings;
 import javafx.beans.binding.When;
-import javafx.beans.property.*;
+import javafx.beans.property.ReadOnlyStringProperty;
+import javafx.beans.property.ReadOnlyStringWrapper;
 import javafx.scene.control.ToggleGroup;
 import javafx.scene.paint.Color;
 import javafx.scene.text.Font;
 import org.jackhuang.hmcl.Metadata;
 import org.jackhuang.hmcl.setting.*;
+import org.jackhuang.hmcl.ui.construct.MessageBox;
 import org.jackhuang.hmcl.ui.construct.Validator;
 import org.jackhuang.hmcl.ui.decorator.DecoratorPage;
 import org.jackhuang.hmcl.upgrade.RemoteVersion;
 import org.jackhuang.hmcl.upgrade.UpdateChannel;
 import org.jackhuang.hmcl.upgrade.UpdateChecker;
 import org.jackhuang.hmcl.upgrade.UpdateHandler;
+import org.jackhuang.hmcl.util.Logging;
 import org.jackhuang.hmcl.util.i18n.Locales;
 import org.jackhuang.hmcl.util.javafx.SafeStringConverter;
 
+import java.awt.*;
+import java.io.IOException;
 import java.net.Proxy;
+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.Arrays;
 import java.util.Collections;
 import java.util.Optional;
+import java.util.logging.Level;
 
 import static org.jackhuang.hmcl.setting.ConfigHolder.config;
+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;
 import static org.jackhuang.hmcl.util.javafx.ExtendedProperties.reservedSelectedPropertyFor;
 import static org.jackhuang.hmcl.util.javafx.ExtendedProperties.selectedItemPropertyFor;
@@ -83,7 +96,11 @@ public final class SettingsPage extends SettingsView implements DecoratorPage {
 
         // ==== Proxy ====
         txtProxyHost.textProperty().bindBidirectional(config().proxyHostProperty());
-        txtProxyPort.textProperty().bindBidirectional(config().proxyPortProperty());
+        txtProxyPort.textProperty().bindBidirectional(config().proxyPortProperty(),
+                SafeStringConverter.fromInteger()
+                        .restrict(it -> it >= 0 && it <= 0xFFFF)
+                        .fallbackTo(0)
+                        .asPredicate(Validator.addTo(txtProxyPort)));
         txtProxyUsername.textProperty().bindBidirectional(config().proxyUserProperty());
         txtProxyPassword.textProperty().bindBidirectional(config().proxyPassProperty());
 
@@ -102,13 +119,13 @@ public final class SettingsPage extends SettingsView implements DecoratorPage {
         // ====
 
         fileCommonLocation.loadChildren(Arrays.asList(
-                fileCommonLocation.createChildren(i18n("launcher.common_directory.default"), EnumCommonDirectory.DEFAULT)
+                fileCommonLocation.createChildren(i18n("launcher.cache_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")),
+                                .orElse(i18n("launcher.cache_directory.disabled")),
                         config().commonDirectoryProperty(), config().commonDirTypeProperty()));
 
         // ==== Update ====
@@ -200,6 +217,32 @@ public final class SettingsPage extends SettingsView implements DecoratorPage {
         UpdateHandler.updateFrom(target);
     }
 
+    @Override
+    protected void onExportLogs() {
+        // We cannot determine which file is JUL using.
+        // So we write all the logs to a new file.
+        thread(() -> {
+            Path logFile = Paths.get("hmcl-exported-logs-" + LocalDateTime.now().format(DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH-mm-ss")) + ".log").toAbsolutePath();
+
+            LOG.info("Exporting logs to " + logFile);
+            try {
+                Files.write(logFile, Logging.getRawLogs());
+            } catch (IOException e) {
+                Platform.runLater(() -> Controllers.dialog(i18n("settings.launcher.launcher_log.export.failed") + "\n" + e, null, MessageBox.ERROR_MESSAGE));
+                LOG.log(Level.WARNING, "Failed to export logs", e);
+                return;
+            }
+
+            Platform.runLater(() -> Controllers.dialog(i18n("settings.launcher.launcher_log.export.success", logFile)));
+            if (Desktop.isDesktopSupported()) {
+                try {
+                    Desktop.getDesktop().open(logFile.toFile());
+                } catch (IOException ignored) {
+                }
+            }
+        });
+    }
+
     @Override
     protected void onHelp() {
         FXUtils.openLink(Metadata.HELP_URL);

HMCL/src/main/java/org/jackhuang/hmcl/ui/SettingsView.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2017  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 
@@ -26,18 +26,16 @@ import javafx.scene.control.ScrollPane;
 import javafx.scene.layout.*;
 import javafx.scene.text.Text;
 import javafx.scene.text.TextAlignment;
-
-import static org.jackhuang.hmcl.setting.ConfigHolder.config;
-import static org.jackhuang.hmcl.ui.FXUtils.stringConverter;
-import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
-
 import org.jackhuang.hmcl.setting.EnumBackgroundImage;
 import org.jackhuang.hmcl.setting.EnumCommonDirectory;
 import org.jackhuang.hmcl.setting.Theme;
 import org.jackhuang.hmcl.ui.construct.*;
-import org.jackhuang.hmcl.util.i18n.I18n;
 import org.jackhuang.hmcl.util.i18n.Locales.SupportedLocale;
 
+import static org.jackhuang.hmcl.setting.ConfigHolder.config;
+import static org.jackhuang.hmcl.ui.FXUtils.stringConverter;
+import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
+
 public abstract class SettingsView extends StackPane {
     protected final JFXTextField txtProxyHost;
     protected final JFXTextField txtProxyPort;
@@ -145,9 +143,9 @@ public abstract class SettingsView extends StackPane {
 
                 {
                     fileCommonLocation = new MultiFileItem<>(true);
-                    fileCommonLocation.setTitle(i18n("launcher.common_directory"));
+                    fileCommonLocation.setTitle(i18n("launcher.cache_directory"));
                     fileCommonLocation.setDirectory(true);
-                    fileCommonLocation.setChooserTitle(i18n("launcher.common_directory.choose"));
+                    fileCommonLocation.setChooserTitle(i18n("launcher.cache_directory.choose"));
                     fileCommonLocation.setHasSubtitle(true);
                     fileCommonLocation.setCustomText("settings.custom");
 
@@ -333,34 +331,49 @@ public abstract class SettingsView extends StackPane {
                 }
 
                 {
-                    VBox fontPane = new VBox();
-                    fontPane.setSpacing(5);
-                    settingsPane.getContent().add(fontPane);
+                    ComponentSublist logPane = new ComponentSublist();
+                    logPane.setTitle(i18n("settings.launcher.log"));
 
                     {
-                        BorderPane borderPane = new BorderPane();
-                        fontPane.getChildren().add(borderPane);
-                        {
-                            Label left = new Label(i18n("settings.launcher.log_font"));
-                            BorderPane.setAlignment(left, Pos.CENTER_LEFT);
-                            borderPane.setLeft(left);
-                        }
+                        JFXButton logButton = new JFXButton(i18n("settings.launcher.launcher_log.export"));
+                        logButton.setOnMouseClicked(e -> onExportLogs());
+                        logButton.getStyleClass().setAll("jfx-button-border");
 
-                        {
-                            HBox hBox = new HBox();
-                            hBox.setSpacing(3);
-
-                            cboFont = new FontComboBox(12, false);
-                            txtFontSize = new JFXTextField();
-                            FXUtils.setLimitWidth(txtFontSize, 50);
-                            hBox.getChildren().setAll(cboFont, txtFontSize);
-
-                            borderPane.setRight(hBox);
-                        }
+                        logPane.setHeaderRight(logButton);
                     }
 
-                    lblDisplay = new Label("[23:33:33] [Client Thread/INFO] [WaterPower]: Loaded mod WaterPower.");
-                    fontPane.getChildren().add(lblDisplay);
+                    {
+                        VBox fontPane = new VBox();
+                        fontPane.setSpacing(5);
+
+                        {
+                            BorderPane borderPane = new BorderPane();
+                            fontPane.getChildren().add(borderPane);
+                            {
+                                Label left = new Label(i18n("settings.launcher.log.font"));
+                                BorderPane.setAlignment(left, Pos.CENTER_LEFT);
+                                borderPane.setLeft(left);
+                            }
+
+                            {
+                                HBox hBox = new HBox();
+                                hBox.setSpacing(3);
+
+                                cboFont = new FontComboBox(12, false);
+                                txtFontSize = new JFXTextField();
+                                FXUtils.setLimitWidth(txtFontSize, 50);
+                                hBox.getChildren().setAll(cboFont, txtFontSize);
+
+                                borderPane.setRight(hBox);
+                            }
+                        }
+
+                        lblDisplay = new Label("[23:33:33] [Client Thread/INFO] [WaterPower]: Loaded mod WaterPower.");
+                        fontPane.getChildren().add(lblDisplay);
+
+                        logPane.getContent().add(fontPane);
+                    }
+                    settingsPane.getContent().add(logPane);
                 }
 
                 {
@@ -477,4 +490,5 @@ public abstract class SettingsView extends StackPane {
 
     protected abstract void onUpdate();
     protected abstract void onHelp();
+    protected abstract void onExportLogs();
 }

HMCL/src/main/java/org/jackhuang/hmcl/ui/WeakListenerHolder.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2017  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 

HMCL/src/main/java/org/jackhuang/hmcl/ui/WebStage.java

@@ -1,7 +1,7 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 

HMCL/src/main/java/org/jackhuang/hmcl/ui/account/AccountAdvancedListItem.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2017  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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.account;
 

HMCL/src/main/java/org/jackhuang/hmcl/ui/account/AccountList.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2017  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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.account;
 

HMCL/src/main/java/org/jackhuang/hmcl/ui/account/AccountListItem.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2017  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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.account;
 
@@ -44,7 +44,7 @@ public class AccountListItem extends RadioButton {
         getStyleClass().clear();
         setUserData(account);
 
-        StringBuilder subtitleString = new StringBuilder(Accounts.getAccountTypeName(account));
+        StringBuilder subtitleString = new StringBuilder(Accounts.getLocalizedLoginTypeName(Accounts.getAccountFactory(account)));
         if (account instanceof AuthlibInjectorAccount) {
             AuthlibInjectorServer server = ((AuthlibInjectorAccount) account).getServer();
             subtitleString.append(", ").append(i18n("account.injector.server")).append(": ").append(server.getName());

HMCL/src/main/java/org/jackhuang/hmcl/ui/account/AccountListItemSkin.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2017  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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.account;
 

HMCL/src/main/java/org/jackhuang/hmcl/ui/account/AccountLoginPane.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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.account;
 

HMCL/src/main/java/org/jackhuang/hmcl/ui/account/AddAccountPane.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2017  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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.account;
 
@@ -80,8 +80,13 @@ public class AddAccountPane extends StackPane {
         selectDefaultServer();
 
         cboType.getItems().setAll(Accounts.FACTORY_OFFLINE, Accounts.FACTORY_YGGDRASIL, Accounts.FACTORY_AUTHLIB_INJECTOR);
-        cboType.setConverter(stringConverter(Accounts::getAccountTypeName));
-        cboType.getSelectionModel().select(0);
+        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());
@@ -91,6 +96,9 @@ public class AddAccountPane extends StackPane {
 
         ReadOnlyObjectProperty<AccountFactory<?>> loginType = cboType.getSelectionModel().selectedItemProperty();
 
+        // remember the last used login type
+        loginType.addListener((observable, oldValue, newValue) -> config().setPreferredLoginType(Accounts.getLoginType(newValue)));
+
         txtPassword.visibleProperty().bind(loginType.isNotEqualTo(Accounts.FACTORY_OFFLINE));
         lblPassword.visibleProperty().bind(txtPassword.visibleProperty());
 
@@ -290,6 +298,8 @@ public class AddAccountPane extends StackPane {
             return exception.getMessage();
         } else if (exception instanceof AuthlibInjectorDownloadException) {
             return i18n("account.failed.injector_download_failure");
+        } else if (exception.getClass() == AuthenticationException.class) {
+            return exception.getLocalizedMessage();
         } else {
             return exception.getClass().getName() + ": " + exception.getLocalizedMessage();
         }

HMCL/src/main/java/org/jackhuang/hmcl/ui/account/AddAuthlibInjectorServerPane.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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.account;
 
@@ -35,9 +35,11 @@ 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 implements DialogAware {
@@ -116,7 +118,9 @@ public class AddAuthlibInjectorServerPane extends StackPane implements DialogAwa
 
                 transitionHandler.setContent(confirmServerPane, ContainerAnimations.SWIPE_LEFT.getAnimationProducer());
             } else {
-                lblCreationWarning.setText(resolveFetchExceptionMessage(variables.<Exception>get("lastException")));
+                Exception exception = variables.get("lastException");
+                LOG.log(Level.WARNING, "Failed to resolve auth server: " + url, exception);
+                lblCreationWarning.setText(resolveFetchExceptionMessage(exception));
             }
         }).start();
 

HMCL/src/main/java/org/jackhuang/hmcl/ui/account/AuthlibInjectorServerItem.java

@@ -1,7 +1,7 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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.account;
 

HMCL/src/main/java/org/jackhuang/hmcl/ui/account/AuthlibInjectorServersPage.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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.account;
 

HMCL/src/main/java/org/jackhuang/hmcl/ui/animation/AnimationHandler.java

@@ -1,7 +1,7 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 

HMCL/src/main/java/org/jackhuang/hmcl/ui/animation/AnimationProducer.java

@@ -1,7 +1,7 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 

HMCL/src/main/java/org/jackhuang/hmcl/ui/animation/ContainerAnimations.java

@@ -1,7 +1,7 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright c 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 

HMCL/src/main/java/org/jackhuang/hmcl/ui/animation/TransitionHandler.java

@@ -1,7 +1,7 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 

HMCL/src/main/java/org/jackhuang/hmcl/ui/construct/AdvancedListBox.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 

HMCL/src/main/java/org/jackhuang/hmcl/ui/construct/AdvancedListItem.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2017  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 

HMCL/src/main/java/org/jackhuang/hmcl/ui/construct/AdvancedListItemSkin.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2017  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 

HMCL/src/main/java/org/jackhuang/hmcl/ui/construct/ClassTitle.java

@@ -1,7 +1,7 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 

HMCL/src/main/java/org/jackhuang/hmcl/ui/construct/ComponentList.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 

HMCL/src/main/java/org/jackhuang/hmcl/ui/construct/ComponentListCell.java

@@ -1,7 +1,7 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 
@@ -88,11 +88,16 @@ class ComponentListCell extends StackPane {
             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());
                 labelVBox.getChildren().add(label);
@@ -108,6 +113,7 @@ 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();

HMCL/src/main/java/org/jackhuang/hmcl/ui/construct/ComponentSublist.java

@@ -1,3 +1,20 @@
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;

HMCL/src/main/java/org/jackhuang/hmcl/ui/construct/DialogAware.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2017  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 

HMCL/src/main/java/org/jackhuang/hmcl/ui/construct/DialogCloseEvent.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 

HMCL/src/main/java/org/jackhuang/hmcl/ui/construct/FileItem.java

@@ -1,7 +1,7 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 

HMCL/src/main/java/org/jackhuang/hmcl/ui/construct/FontComboBox.java

@@ -1,7 +1,7 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 

HMCL/src/main/java/org/jackhuang/hmcl/ui/construct/IconedItem.java

@@ -1,7 +1,7 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 

HMCL/src/main/java/org/jackhuang/hmcl/ui/construct/IconedMenuItem.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2017  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 

HMCL/src/main/java/org/jackhuang/hmcl/ui/construct/ImagePickerItem.java

@@ -1,3 +1,20 @@
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;

HMCL/src/main/java/org/jackhuang/hmcl/ui/construct/InputDialogPane.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 
@@ -38,15 +38,20 @@ public class InputDialogPane extends StackPane {
     private Label content;
     @FXML
     private Label lblCreationWarning;
+    @FXML
+    private SpinnerPane acceptPane;
 
     public InputDialogPane(String text, FutureCallback<String> onResult) {
         FXUtils.loadFXML(this, "/assets/fxml/input-dialog.fxml");
         content.setText(text);
         cancelButton.setOnMouseClicked(e -> fireEvent(new DialogCloseEvent()));
         acceptButton.setOnMouseClicked(e -> {
+            acceptPane.showSpinner();
             onResult.call(textField.getText(), () -> {
+                acceptPane.hideSpinner();
                 fireEvent(new DialogCloseEvent());
             }, msg -> {
+                acceptPane.hideSpinner();
                 lblCreationWarning.setText(msg);
             });
         });

HMCL/src/main/java/org/jackhuang/hmcl/ui/construct/MenuSeparator.java

@@ -1,3 +1,20 @@
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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.geometry.Insets;

HMCL/src/main/java/org/jackhuang/hmcl/ui/construct/MessageBox.java

@@ -1,7 +1,7 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 

HMCL/src/main/java/org/jackhuang/hmcl/ui/construct/MessageDialogPane.java

@@ -1,7 +1,7 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun4008@126.com>
- * 
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 

HMCL/src/main/java/org/jackhuang/hmcl/ui/construct/MultiColorItem.java

@@ -1,3 +1,20 @@
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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.JFXColorPicker;

HMCL/src/main/java/org/jackhuang/hmcl/ui/construct/MultiFileItem.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 

HMCL/src/main/java/org/jackhuang/hmcl/ui/construct/Navigator.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2017  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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 +13,11 @@
  * 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 javafx.application.Platform;
 import javafx.beans.property.ObjectProperty;
-import javafx.beans.property.ReadOnlyBooleanWrapper;
 import javafx.beans.property.SimpleObjectProperty;
 import javafx.event.Event;
 import javafx.event.EventHandler;
@@ -30,36 +28,51 @@ import javafx.scene.layout.StackPane;
 import org.jackhuang.hmcl.ui.FXUtils;
 import org.jackhuang.hmcl.ui.animation.ContainerAnimations;
 import org.jackhuang.hmcl.ui.animation.TransitionHandler;
+import org.jackhuang.hmcl.util.Logging;
 
 import java.util.Optional;
 import java.util.Stack;
+import java.util.logging.Level;
 
 public class Navigator extends StackPane {
     private static final String PROPERTY_DIALOG_CLOSE_HANDLER = Navigator.class.getName() + ".closeListener";
 
     private final Stack<Node> stack = new Stack<>();
     private final TransitionHandler animationHandler = new TransitionHandler(this);
-    private final ReadOnlyBooleanWrapper canGoBack = new ReadOnlyBooleanWrapper();
+    private boolean initialized = false;
 
-    public Navigator(Node init) {
+    public void init(Node init) {
         stack.push(init);
         getChildren().setAll(init);
 
-        Platform.runLater(() ->
-                fireEvent(new NavigationEvent(this, init, NavigationEvent.NAVIGATED)));
+        fireEvent(new NavigationEvent(this, init, NavigationEvent.NAVIGATED));
+
+        initialized = true;
     }
 
     public void navigate(Node node) {
         FXUtils.checkFxUserThread();
 
+        if (!initialized)
+            throw new IllegalStateException("Navigator must have a root page");
+
         Node from = stack.peek();
         if (from == node)
             return;
 
+        Logging.LOG.info("Navigate to " + node);
+
         stack.push(node);
-        fireEvent(new NavigationEvent(this, from, NavigationEvent.NAVIGATING));
+
+        NavigationEvent navigating = new NavigationEvent(this, from, NavigationEvent.NAVIGATING);
+        fireEvent(navigating);
+        node.fireEvent(navigating);
+
         setContent(node);
-        fireEvent(new NavigationEvent(this, node, NavigationEvent.NAVIGATED));
+
+        NavigationEvent navigated = new NavigationEvent(this, node, NavigationEvent.NAVIGATED);
+        fireEvent(navigated);
+        node.fireEvent(navigated);
 
         EventHandler<PageCloseEvent> handler = event -> close(node);
         node.getProperties().put(PROPERTY_DIALOG_CLOSE_HANDLER, handler);
@@ -79,14 +92,26 @@ public class Navigator extends StackPane {
     public void close(Node from) {
         FXUtils.checkFxUserThread();
 
-        if (stack.peek() != from)
-            throw new IllegalStateException();
+        if (!initialized)
+            throw new IllegalStateException("Navigator must have a root page");
+
+        if (stack.peek() != from) {
+            // Allow page to be closed multiple times.
+            Logging.LOG.log(Level.INFO, "Closing already closed page: " + from, new Throwable());
+            return;
+        }
+
+        Logging.LOG.info("Closed page " + from);
+
         stack.pop();
         Node node = stack.peek();
+
         NavigationEvent navigating = new NavigationEvent(this, from, NavigationEvent.NAVIGATING);
         fireEvent(navigating);
         node.fireEvent(navigating);
+
         setContent(node);
+
         NavigationEvent navigated = new NavigationEvent(this, node, NavigationEvent.NAVIGATED);
         fireEvent(navigated);
         node.fireEvent(navigated);

HMCL/src/main/java/org/jackhuang/hmcl/ui/construct/NoneMultipleSelectionModel.java

@@ -1,7 +1,7 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 

HMCL/src/main/java/org/jackhuang/hmcl/ui/construct/NumberValidator.java

@@ -1,7 +1,7 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 

HMCL/src/main/java/org/jackhuang/hmcl/ui/construct/PageCloseEvent.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2017  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 

HMCL/src/main/java/org/jackhuang/hmcl/ui/construct/PopupMenu.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2017  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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.ui.construct;
 
 import javafx.beans.binding.Bindings;
+import javafx.beans.binding.When;
+import javafx.beans.property.BooleanProperty;
+import javafx.beans.property.SimpleBooleanProperty;
 import javafx.collections.FXCollections;
 import javafx.collections.ObservableList;
 import javafx.scene.Node;
@@ -25,12 +28,14 @@ import javafx.scene.control.Control;
 import javafx.scene.control.ScrollPane;
 import javafx.scene.control.Skin;
 import javafx.scene.control.SkinBase;
+import javafx.scene.layout.StackPane;
 import javafx.scene.layout.VBox;
 import org.jackhuang.hmcl.ui.FXUtils;
 
 public class PopupMenu extends Control {
 
     private final ObservableList<Node> content = FXCollections.observableArrayList();
+    private final BooleanProperty alwaysShowingVBar = new SimpleBooleanProperty();
 
     public PopupMenu() {
     }
@@ -39,11 +44,31 @@ public class PopupMenu extends Control {
         return content;
     }
 
+    public boolean isAlwaysShowingVBar() {
+        return alwaysShowingVBar.get();
+    }
+
+    public BooleanProperty alwaysShowingVBarProperty() {
+        return alwaysShowingVBar;
+    }
+
+    public void setAlwaysShowingVBar(boolean alwaysShowingVBar) {
+        this.alwaysShowingVBar.set(alwaysShowingVBar);
+    }
+
     @Override
     protected Skin<?> createDefaultSkin() {
         return new PopupMenuSkin();
     }
 
+    public static Node wrapPopupMenuItem(Node node) {
+        StackPane pane = new StackPane();
+        pane.getChildren().setAll(node);
+        pane.getStyleClass().setAll("menu-container");
+        node.setMouseTransparent(true);
+        return new RipplerContainer(pane);
+    }
+
     private class PopupMenuSkin extends SkinBase<PopupMenu> {
 
         protected PopupMenuSkin() {
@@ -52,6 +77,9 @@ public class PopupMenu extends Control {
             ScrollPane scrollPane = new ScrollPane();
             scrollPane.setFitToHeight(true);
             scrollPane.setFitToWidth(true);
+            scrollPane.vbarPolicyProperty().bind(new When(alwaysShowingVBar)
+                    .then(ScrollPane.ScrollBarPolicy.ALWAYS)
+                    .otherwise(ScrollPane.ScrollBarPolicy.AS_NEEDED));
 
             VBox content = new VBox();
             content.getStyleClass().add("menu");

HMCL/src/main/java/org/jackhuang/hmcl/ui/construct/RipplerContainer.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 
@@ -27,7 +27,12 @@ import javafx.beans.property.BooleanProperty;
 import javafx.beans.property.ObjectProperty;
 import javafx.beans.property.SimpleBooleanProperty;
 import javafx.beans.property.SimpleObjectProperty;
-import javafx.css.*;
+import javafx.css.CssMetaData;
+import javafx.css.PseudoClass;
+import javafx.css.SimpleStyleableObjectProperty;
+import javafx.css.Styleable;
+import javafx.css.StyleableObjectProperty;
+import javafx.css.StyleablePropertyFactory;
 import javafx.geometry.Insets;
 import javafx.scene.Node;
 import javafx.scene.layout.Background;
@@ -39,8 +44,6 @@ import javafx.scene.paint.Paint;
 import javafx.scene.shape.Rectangle;
 import org.jackhuang.hmcl.util.Lang;
 
-import java.util.ArrayList;
-import java.util.Collections;
 import java.util.List;
 
 @DefaultProperty("container")
@@ -210,32 +213,12 @@ public class RipplerContainer extends StackPane {
     }
 
     public static List<CssMetaData<? extends Styleable, ?>> getClassCssMetaData() {
-        return StyleableProperties.STYLEABLES;
+        return StyleableProperties.FACTORY.getCssMetaData();
     }
 
     private static class StyleableProperties {
+        private static final StyleablePropertyFactory<RipplerContainer> FACTORY = new StyleablePropertyFactory<>(StackPane.getClassCssMetaData());
 
-        private static final CssMetaData<RipplerContainer, Paint> RIPPLER_FILL = new CssMetaData<RipplerContainer, Paint>("-jfx-rippler-fill", StyleConverter.getPaintConverter(), Color.rgb(0, 200, 255)) {
-            @Override
-            public boolean isSettable(RipplerContainer control) {
-                return control.ripplerFill == null || !control.ripplerFill.isBound();
-            }
-
-            @Override
-            public StyleableProperty<Paint> getStyleableProperty(RipplerContainer control) {
-                return control.ripplerFillProperty();
-            }
-        };
-
-        private static final List<CssMetaData<? extends Styleable, ?>> STYLEABLES;
-
-        private StyleableProperties() {
-        }
-
-        static {
-            List<CssMetaData<? extends Styleable, ?>> styleables = new ArrayList<>(Node.getClassCssMetaData());
-            Collections.addAll(styleables, RIPPLER_FILL);
-            STYLEABLES = Collections.unmodifiableList(styleables);
-        }
+        private static final CssMetaData<RipplerContainer, Paint> RIPPLER_FILL = FACTORY.createPaintCssMetaData("-jfx-rippler-fill", s -> s.ripplerFill, Color.rgb(0, 200, 255));
     }
 }

HMCL/src/main/java/org/jackhuang/hmcl/ui/construct/SpinnerPane.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2017  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 

HMCL/src/main/java/org/jackhuang/hmcl/ui/construct/StackContainerPane.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2017  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 

HMCL/src/main/java/org/jackhuang/hmcl/ui/construct/TaskExecutorDialogPane.java

@@ -1,7 +1,7 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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
@@ -13,13 +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.ui.construct;
 
 import com.jfoenix.concurrency.JFXUtilities;
 import com.jfoenix.controls.JFXButton;
 import com.jfoenix.controls.JFXProgressBar;
+import javafx.application.Platform;
 import javafx.beans.binding.Bindings;
 import javafx.beans.property.StringProperty;
 import javafx.fxml.FXML;
@@ -27,6 +28,7 @@ import javafx.scene.control.Label;
 import javafx.scene.layout.Region;
 import javafx.scene.layout.StackPane;
 import org.jackhuang.hmcl.task.TaskExecutor;
+import org.jackhuang.hmcl.task.TaskListener;
 import org.jackhuang.hmcl.ui.FXUtils;
 
 import java.util.Optional;
@@ -66,10 +68,23 @@ public class TaskExecutorDialogPane extends StackPane {
     }
 
     public void setExecutor(TaskExecutor executor) {
+        setExecutor(executor, true);
+    }
+
+    public void setExecutor(TaskExecutor executor, boolean autoClose) {
         this.executor = executor;
 
-        if (executor != null)
+        if (executor != null) {
             taskListPane.setExecutor(executor);
+
+            if (autoClose)
+                executor.addTaskListener(new TaskListener() {
+                    @Override
+                    public void onStop(boolean success, TaskExecutor executor) {
+                        Platform.runLater(() -> fireEvent(new DialogCloseEvent()));
+                    }
+                });
+        }
     }
 
     public StringProperty titleProperty() {

HMCL/src/main/java/org/jackhuang/hmcl/ui/construct/TaskListPane.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 
@@ -94,6 +94,8 @@ public final class TaskListPane extends StackPane {
                     task.setName(i18n("modpack.type.curse.completion"));
                 } else if (task instanceof ModpackInstallTask) {
                     task.setName(i18n("modpack.installing"));
+                } else if (task instanceof ModpackUpdateTask) {
+                    task.setName(i18n("modpack.update"));
                 } else if (task instanceof CurseInstallTask) {
                     task.setName(i18n("modpack.install", i18n("modpack.type.curse")));
                 } else if (task instanceof MultiMCModpackInstallTask) {

HMCL/src/main/java/org/jackhuang/hmcl/ui/construct/TwoLineListItem.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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
@@ -13,14 +13,17 @@
  * 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.beans.property.SimpleStringProperty;
 import javafx.beans.property.StringProperty;
-import javafx.css.*;
-import javafx.scene.Node;
+import javafx.css.CssMetaData;
+import javafx.css.SimpleStyleableObjectProperty;
+import javafx.css.Styleable;
+import javafx.css.StyleableObjectProperty;
+import javafx.css.StyleablePropertyFactory;
 import javafx.scene.control.Label;
 import javafx.scene.layout.StackPane;
 import javafx.scene.layout.VBox;
@@ -28,8 +31,6 @@ 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 {
@@ -152,69 +153,15 @@ public class TwoLineListItem extends StackPane {
     }
 
     public static List<CssMetaData<? extends Styleable, ?>> getClassCssMetaData() {
-        return StyleableProperties.STYLEABLES;
+        return StyleableProperties.FACTORY.getCssMetaData();
     }
 
     private static class StyleableProperties {
+        private static final StyleablePropertyFactory<TwoLineListItem> FACTORY = new StyleablePropertyFactory<>(StackPane.getClassCssMetaData());
 
-        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);
-        }
+        private static final CssMetaData<TwoLineListItem, Font> TITLE_FONT = FACTORY.createFontCssMetaData("-jfx-title-font", s -> s.titleFont, Font.font(15));
+        private static final CssMetaData<TwoLineListItem, Font> SUBTITLE_FONT = FACTORY.createFontCssMetaData("-jfx-subtitle-font", s -> s.subtitleFont);
+        private static final CssMetaData<TwoLineListItem, Paint> TITLE_FILL = FACTORY.createPaintCssMetaData("-jfx-title-fill", s -> s.titleFill);
+        private static final CssMetaData<TwoLineListItem, Paint> SUBTITLE_FILL = FACTORY.createPaintCssMetaData("-jfx-subtitle-fill", s -> s.subtitleFill, Color.GREY);
     }
 }

HMCL/src/main/java/org/jackhuang/hmcl/ui/construct/Validator.java

@@ -1,7 +1,7 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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;
 

HMCL/src/main/java/org/jackhuang/hmcl/ui/decorator/Decorator.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2017  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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.decorator;
 
@@ -30,7 +30,7 @@ import javafx.scene.layout.StackPane;
 import javafx.stage.Stage;
 import javafx.stage.StageStyle;
 
-public class DecoratorControl extends Control {
+public class Decorator extends Control {
     private final ListProperty<Node> drawer = new SimpleListProperty<>(FXCollections.observableArrayList());
     private final ListProperty<Node> content = new SimpleListProperty<>(FXCollections.observableArrayList());
     private final ListProperty<Node> container = new SimpleListProperty<>(FXCollections.observableArrayList());
@@ -49,7 +49,7 @@ public class DecoratorControl extends Control {
     private final Stage primaryStage;
     private StackPane drawerWrapper;
 
-    public DecoratorControl(Stage primaryStage) {
+    public Decorator(Stage primaryStage) {
         this.primaryStage = primaryStage;
 
         primaryStage.initStyle(StageStyle.UNDECORATED);

HMCL/src/main/java/org/jackhuang/hmcl/ui/decorator/DecoratorController.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2017  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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.decorator;
 
@@ -40,16 +40,14 @@ import javafx.util.Duration;
 import org.jackhuang.hmcl.Launcher;
 import org.jackhuang.hmcl.Metadata;
 import org.jackhuang.hmcl.auth.authlibinjector.AuthlibInjectorDnD;
-import org.jackhuang.hmcl.setting.ConfigHolder;
+import org.jackhuang.hmcl.setting.Config;
 import org.jackhuang.hmcl.setting.EnumBackgroundImage;
-import org.jackhuang.hmcl.task.TaskExecutor;
 import org.jackhuang.hmcl.ui.Controllers;
 import org.jackhuang.hmcl.ui.FXUtils;
 import org.jackhuang.hmcl.ui.account.AddAuthlibInjectorServerPane;
 import org.jackhuang.hmcl.ui.construct.*;
 import org.jackhuang.hmcl.ui.wizard.Refreshable;
 import org.jackhuang.hmcl.ui.wizard.WizardProvider;
-import org.jackhuang.hmcl.util.FutureCallback;
 
 import java.io.IOException;
 import java.nio.file.Files;
@@ -59,7 +57,6 @@ import java.util.List;
 import java.util.Locale;
 import java.util.Optional;
 import java.util.Random;
-import java.util.function.Consumer;
 import java.util.logging.Level;
 
 import static java.util.stream.Collectors.toList;
@@ -69,7 +66,7 @@ import static org.jackhuang.hmcl.util.Logging.LOG;
 public class DecoratorController {
     private static final String PROPERTY_DIALOG_CLOSE_HANDLER = DecoratorController.class.getName() + ".dialog.closeListener";
 
-    private final DecoratorControl decorator;
+    private final Decorator decorator;
     private final ImageView welcomeView;
     private final Navigator navigator;
     private final Node mainPage;
@@ -80,13 +77,14 @@ public class DecoratorController {
     public DecoratorController(Stage stage, Node mainPage) {
         this.mainPage = mainPage;
 
-        decorator = new DecoratorControl(stage);
+        decorator = new Decorator(stage);
         decorator.titleProperty().set(Metadata.TITLE);
         decorator.setOnCloseButtonAction(Launcher::stopApplication);
 
-        navigator = new Navigator(mainPage);
+        navigator = new Navigator();
         navigator.setOnNavigating(this::onNavigating);
         navigator.setOnNavigated(this::onNavigated);
+        navigator.init(mainPage);
 
         decorator.getContent().setAll(navigator);
         decorator.onCloseNavButtonActionProperty().set(e -> close());
@@ -106,18 +104,34 @@ public class DecoratorController {
             );
             nowAnimation.play();
         });
-        if (ConfigHolder.isNewlyCreated() && config().getLocalization().getLocale() == Locale.CHINA)
-            decorator.getContainer().setAll(welcomeView);
+
+        if (switchedToNewUI()) {
+            if (config().getLocalization().getLocale() == Locale.CHINA) {
+                // currently, user guide is only available in Chinese
+                decorator.getContainer().setAll(welcomeView);
+            }
+        }
 
         setupBackground();
 
         setupAuthlibInjectorDnD();
     }
 
-    public DecoratorControl getDecorator() {
+    public Decorator getDecorator() {
         return decorator;
     }
 
+    /**
+     * @return true if the user is seeing the current version of UI for the first time.
+     */
+    private boolean switchedToNewUI() {
+        if (config().getUiVersion() < Config.CURRENT_UI_VERSION) {
+            config().setUiVersion(Config.CURRENT_UI_VERSION);
+            return true;
+        }
+        return false;
+    }
+
     // ==== Background ====
 
     private void setupBackground() {
@@ -342,45 +356,6 @@ public class DecoratorController {
         }
     }
 
-    public void showDialog(String text) {
-        showDialog(text, null);
-    }
-
-    public void showDialog(String text, String title) {
-        showDialog(text, title, MessageBox.INFORMATION_MESSAGE);
-    }
-
-    public void showDialog(String text, String title, int type) {
-        showDialog(text, title, type, null);
-    }
-
-    public void showDialog(String text, String title, int type, Runnable onAccept) {
-        showDialog(new MessageDialogPane(text, title, type, onAccept));
-    }
-
-    public void showConfirmDialog(String text, String title, Runnable onAccept, Runnable onCancel) {
-        showDialog(new MessageDialogPane(text, title, onAccept, onCancel));
-    }
-
-    public InputDialogPane showInputDialog(String text, FutureCallback<String> onResult) {
-        InputDialogPane pane = new InputDialogPane(text, onResult);
-        showDialog(pane);
-        return pane;
-    }
-
-    public Region showTaskDialog(TaskExecutor executor, String title, String subtitle) {
-        return showTaskDialog(executor, title, subtitle, null);
-    }
-
-    public Region showTaskDialog(TaskExecutor executor, String title, String subtitle, Consumer<Region> onCancel) {
-        TaskExecutorDialogPane pane = new TaskExecutorDialogPane(onCancel);
-        pane.setTitle(title);
-        pane.setSubtitle(subtitle);
-        pane.setExecutor(executor);
-        showDialog(pane);
-        return pane;
-    }
-
     // ==== Wizard ====
 
     public void startWizard(WizardProvider wizardProvider) {

HMCL/src/main/java/org/jackhuang/hmcl/ui/decorator/DecoratorPage.java

@@ -1,7 +1,7 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2018  huangyuhui <huanghongxun2008@126.com>
- * 
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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.decorator;
 

HMCL/src/main/java/org/jackhuang/hmcl/ui/decorator/DecoratorSkin.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2017  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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.decorator;
 
@@ -42,7 +42,7 @@ import org.jackhuang.hmcl.ui.FXUtils;
 import org.jackhuang.hmcl.ui.SVG;
 import org.jackhuang.hmcl.util.Lang;
 
-public class DecoratorSkin extends SkinBase<DecoratorControl> {
+public class DecoratorSkin extends SkinBase<Decorator> {
     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); });
 
@@ -62,14 +62,14 @@ public class DecoratorSkin extends SkinBase<DecoratorControl> {
      *
      * @param control The control for which this Skin should attach to.
      */
-    public DecoratorSkin(DecoratorControl control) {
+    public DecoratorSkin(Decorator control) {
         super(control);
 
         primaryStage = control.getPrimaryStage();
 
         minus.fillProperty().bind(Theme.foregroundFillBinding());
 
-        DecoratorControl skinnable = getSkinnable();
+        Decorator skinnable = getSkinnable();
 
         BorderPane root = new BorderPane();
         root.getStyleClass().setAll("jfx-decorator", "resize-border");
@@ -146,7 +146,7 @@ public class DecoratorSkin extends SkinBase<DecoratorControl> {
         titleContainer.setOnMouseMoved(this::onMouseMoved);
         titleContainer.setPickOnBounds(false);
         titleContainer.setMinHeight(40);
-        titleContainer.getStyleClass().setAll("jfx-tool-bar");
+        titleContainer.getStyleClass().addAll("jfx-tool-bar", "window-title-bar");
         titleContainer.addEventHandler(MouseEvent.MOUSE_ENTERED, e -> allowMove = true);
         titleContainer.addEventHandler(MouseEvent.MOUSE_EXITED, e -> {
             if (!isDragging) allowMove = false;
@@ -169,9 +169,9 @@ public class DecoratorSkin extends SkinBase<DecoratorControl> {
                 titleWrapper.setCenter(lblTitle);
 
                 Rectangle separator = new Rectangle();
+                separator.getStyleClass().add("separator");
                 separator.heightProperty().bind(titleWrapper.heightProperty());
                 separator.setWidth(1);
-                separator.setFill(Color.GRAY);
                 titleWrapper.setRight(separator);
             }
             titleContainer.setLeft(titleWrapper);

HMCL/src/main/java/org/jackhuang/hmcl/ui/decorator/DecoratorWizardDisplayer.java

@@ -1,6 +1,6 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2017  huangyuhui <huanghongxun2008@126.com>
+/**
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2018  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.decorator;