[Bugfix] 修复导出整合包文件选择界面UI线程阻塞 (#6363)

Fixes #6354

HMCL/src/main/java/org/jackhuang/hmcl/ui/export/ModpackFileSelectionPage.java

@@ -27,17 +27,21 @@ import javafx.scene.control.Label;
 import javafx.scene.control.TreeItem;
 import javafx.scene.layout.BorderPane;
 import javafx.scene.layout.HBox;
+import javafx.scene.layout.StackPane;
 import org.jackhuang.hmcl.game.GameInstanceID;
 import org.jackhuang.hmcl.game.HMCLGameRepository;
 import org.jackhuang.hmcl.modpack.ModAdviser;
+import org.jackhuang.hmcl.task.Schedulers;
 import org.jackhuang.hmcl.ui.FXUtils;
 import org.jackhuang.hmcl.ui.construct.NoneMultipleSelectionModel;
+import org.jackhuang.hmcl.ui.construct.SpinnerPane;
 import org.jackhuang.hmcl.ui.wizard.WizardController;
 import org.jackhuang.hmcl.ui.wizard.WizardPage;
 import org.jackhuang.hmcl.util.Pair;
 import org.jackhuang.hmcl.util.SettingsMap;
 import org.jackhuang.hmcl.util.StringUtils;
 import org.jackhuang.hmcl.util.io.FileUtils;
+import org.jetbrains.annotations.Nullable;
 
 import java.io.IOException;
 import java.nio.file.Files;
@@ -45,6 +49,7 @@ import java.nio.file.Path;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
+import java.util.concurrent.CompletableFuture;
 
 import static org.jackhuang.hmcl.ui.FXUtils.onEscPressed;
 import static org.jackhuang.hmcl.util.Lang.mapOf;
@@ -59,7 +64,7 @@ public final class ModpackFileSelectionPage extends BorderPane implements Wizard
     private final WizardController controller;
     private final GameInstanceID instanceId;
     private final ModAdviser adviser;
-    private final ModpackFileTreeItem rootNode;
+    private @Nullable ModpackFileTreeItem rootNode;
 
     public ModpackFileSelectionPage(WizardController controller, HMCLGameRepository repository, GameInstanceID instanceId, ModAdviser adviser) {
         this.controller = controller;
@@ -67,27 +72,59 @@ public final class ModpackFileSelectionPage extends BorderPane implements Wizard
         this.adviser = adviser;
 
         JFXTreeView<String> treeView = new JFXTreeView<>();
-        rootNode = getTreeItem(repository.getRunDirectory(instanceId), "minecraft", 0);
-        treeView.setRoot(rootNode);
         treeView.setSelectionModel(new NoneMultipleSelectionModel<>());
         onEscPressed(treeView, () -> controller.onPrev(true));
-        setMargin(treeView, new Insets(10, 10, 5, 10));
-        this.setCenter(treeView);
+
+        Label placeholder = new Label(i18n("modpack.files.empty"));
+        StackPane placeholderPane = new StackPane(placeholder);
+        placeholderPane.getStyleClass().add("notice-pane");
+        placeholderPane.setVisible(false);
+
+        SpinnerPane spinnerPane = new SpinnerPane();
+        StackPane center = new StackPane(treeView, placeholderPane);
+        spinnerPane.setContent(center);
+
+        setMargin(spinnerPane, new Insets(10, 10, 5, 10));
+        this.setCenter(spinnerPane);
+
 
         HBox nextPane = new HBox();
         nextPane.setPadding(new Insets(16, 16, 16, 0));
         nextPane.setAlignment(Pos.CENTER_RIGHT);
-        {
-            JFXButton btnNext = FXUtils.newRaisedButton(i18n("wizard.next"));
-            btnNext.setPrefSize(100, 40);
-            btnNext.setOnAction(e -> onNext());
 
-            nextPane.getChildren().setAll(btnNext);
-        }
+        JFXButton btnNext = FXUtils.newRaisedButton(i18n("wizard.next"));
+        btnNext.setPrefSize(100, 40);
+        btnNext.setOnAction(e -> onNext());
+        nextPane.getChildren().setAll(btnNext);
+
+        loadRoot(repository, treeView, placeholderPane, spinnerPane, btnNext);
+        spinnerPane.setOnFailedAction((__) -> loadRoot(repository, treeView, placeholderPane, spinnerPane, btnNext));
 
         this.setBottom(nextPane);
     }
 
+    private void loadRoot(HMCLGameRepository repository, JFXTreeView<String> treeView, StackPane placeholderPane, SpinnerPane spinnerPane, JFXButton btnNext) {
+        spinnerPane.setLoading(true);
+        btnNext.setDisable(true);
+        CompletableFuture
+                .supplyAsync(() -> getTreeItem(repository.getRunDirectory(instanceId), "minecraft", 0), Schedulers.io())
+                .whenCompleteAsync((root, throwable) -> {
+                    if (throwable == null) {
+                        if (root != null) {
+                            treeView.setRoot(rootNode = root);
+                        } else {
+                            placeholderPane.setVisible(true);
+                        }
+                        spinnerPane.setFailedReason(null);
+                        btnNext.setDisable(false);
+                    } else {
+                        LOG.warning("Failed to load modpack file tree", throwable);
+                        spinnerPane.setFailedReason(i18n("modpack.files.load_failed"));
+                    }
+                    spinnerPane.setLoading(false);
+                }, Schedulers.javafx());
+    }
+
     private ModpackFileTreeItem getTreeItem(Path file, String basePath, int level) {
         if (Files.notExists(file))
             return null;
@@ -95,7 +132,7 @@ public final class ModpackFileSelectionPage extends BorderPane implements Wizard
         boolean isDirectory = Files.isDirectory(file);
 
         ModAdviser.ModSuggestion state = ModAdviser.ModSuggestion.SUGGESTED;
-        if (basePath.length() > "minecraft/".length()) {
+        if (level > 0) {
             state = adviser.advise(StringUtils.substringAfter(basePath, "minecraft/") + (isDirectory ? "/" : ""), isDirectory);
 
             String fileName = FileUtils.getName(file);

HMCL/src/main/resources/assets/lang/I18N.properties

@@ -1038,8 +1038,10 @@ modpack.file_api=Modpack URL Prefix
 modpack.files.blueprints=BuildCraft Blueprints
 modpack.files.config=Mod Configuration Files
 modpack.files.dumps=NEI Debug Output Files
+modpack.files.empty=No files to export
 modpack.files.hmclversion_cfg=Launcher Configuration File
 modpack.files.liteconfig=LiteLoader Related Files
+modpack.files.load_failed=Failed to load modpack file tree. Please click here to retry.
 modpack.files.mods=Mods
 modpack.files.mods.voxelmods=VoxelMods Options
 modpack.files.options_txt=Minecraft Option File

HMCL/src/main/resources/assets/lang/I18N_zh.properties

@@ -847,8 +847,10 @@ modpack.file_api=模組包下載連結前綴
 modpack.files.blueprints=BuildCraft 藍圖
 modpack.files.config=模組設定檔案
 modpack.files.dumps=NEI 除錯輸出檔案
+modpack.files.empty=沒有需要匯出的檔案
 modpack.files.hmclversion_cfg=啟動器設定檔案
 modpack.files.liteconfig=LiteLoader 相關檔案
+modpack.files.load_failed=載入整合包檔案樹失敗，點選此處重試
 modpack.files.mods=模組
 modpack.files.mods.voxelmods=VoxelMods 設定，如小地圖
 modpack.files.options_txt=遊戲設定

HMCL/src/main/resources/assets/lang/I18N_zh_CN.properties

@@ -853,8 +853,10 @@ modpack.file_api=整合包下载链接前缀
 modpack.files.blueprints=BuildCraft 蓝图
 modpack.files.config=模组配置文件
 modpack.files.dumps=NEI 调试输出文件
+modpack.files.empty=没有需要导出的文件
 modpack.files.hmclversion_cfg=启动器配置文件
 modpack.files.liteconfig=LiteLoader 相关文件
+modpack.files.load_failed=加载整合包文件树失败，点击此处重试
 modpack.files.mods=模组
 modpack.files.mods.voxelmods=VoxelMods 配置，如小地图
 modpack.files.options_txt=游戏设置