添加模组/资源包/光影已安装提示

HMCL/src/main/java/org/jackhuang/hmcl/ui/versions/DownloadListPage.java

@@ -48,6 +48,7 @@
 import org.jackhuang.hmcl.task.Task;
 import org.jackhuang.hmcl.ui.Controllers;
 import org.jackhuang.hmcl.ui.FXUtils;
+import org.jackhuang.hmcl.ui.SVG;
 import org.jackhuang.hmcl.ui.WeakListenerHolder;
 import org.jackhuang.hmcl.ui.construct.*;
 import org.jackhuang.hmcl.ui.decorator.DecoratorPage;
@@ -59,6 +60,9 @@
 import org.jetbrains.annotations.Nullable;
 
 import java.net.URI;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
 import java.util.*;
 import java.util.stream.Collectors;
 
@@ -236,6 +240,56 @@ protected Skin<?> createDefaultSkin() {
         return new ModDownloadListPageSkin(this);
     }
 
+    private static void checkInstalledInList(DownloadListPage page, RemoteAddon addon, java.util.function.Consumer<Boolean> callback) {
+        HMCLGameRepository.InstanceReference ref = page.getInstanceReference();
+        if (ref.repository() == null || ref.instanceId() == null) {
+            callback.accept(false);
+            return;
+        }
+
+        Path targetDir;
+        switch (page.repository.getType()) {
+            case MOD:
+                targetDir = ref.repository().getModsDirectory(ref.instanceId());
+                break;
+            case RESOURCE_PACK:
+                targetDir = ref.repository().getResourcePackDirectory(ref.instanceId());
+                break;
+            case SHADER_PACK:
+                targetDir = ref.repository().getShaderPackDirectory(ref.instanceId());
+                break;
+            default:
+                callback.accept(false);
+                return;
+        }
+
+        Path finalTargetDir = targetDir;
+        Task.supplyAsync(() -> {
+            if (!Files.isDirectory(finalTargetDir)) {
+                return false;
+            }
+            String slug = addon.slug().toLowerCase(Locale.ROOT);
+            // Also match slugs where hyphens/underscores are removed (e.g. slug "fresh-animations" matches filename "FreshAnimations_v1.10.4.zip")
+            String slugNormalized = slug.replaceAll("[^a-z0-9]", "");
+            try (var list = Files.list(finalTargetDir)) {
+                boolean found = list.map(Path::getFileName)
+                        .map(Path::toString)
+                        .anyMatch(name -> {
+                            String lowerName = name.toLowerCase(Locale.ROOT);
+                            boolean match = lowerName.contains(slug) || lowerName.replaceAll("[^a-z0-9]", "").contains(slugNormalized);
+                            return match;
+                        });
+                return found;
+            } catch (IOException e) {
+                return false;
+            }
+        }).whenComplete(Schedulers.javafx(), (result, exception) -> {
+            if (exception != null) {
+            }
+            callback.accept(result != null && result);
+        }).start();
+    }
+
     private static class ModDownloadListPageSkin extends SkinBase<DownloadListPage> {
         private final JFXListView<RemoteAddon> listView = new JFXListView<>();
         private final RemoteImageLoader iconLoader;
@@ -548,6 +602,7 @@ protected ModDownloadListPageSkin(DownloadListPage control) {
 
                     private final TwoLineListItem content = new TwoLineListItem();
                     private final ImageContainer imageContainer = new ImageContainer(40);
+                    private final Label installedLabel = new Label();
 
                     {
                         setPadding(PADDING);
@@ -559,7 +614,14 @@ protected ModDownloadListPageSkin(DownloadListPage control) {
 
                         imageContainer.setMouseTransparent(true);
 
-                        container.getChildren().setAll(imageContainer, content);
+                        installedLabel.setGraphic(SVG.CHECK_CIRCLE.createIcon(16));
+                        installedLabel.setText(i18n("addon.installed"));
+                        installedLabel.getStyleClass().add("label-installed");
+                        installedLabel.setVisible(false);
+                        installedLabel.setManaged(false);
+                        installedLabel.setMouseTransparent(true);
+
+                        container.getChildren().setAll(imageContainer, content, installedLabel);
                         HBox.setHgrow(content, Priority.ALWAYS);
 
                         this.graphic = new RipplerContainer(container);
@@ -597,6 +659,18 @@ protected void updateItem(RemoteAddon item, boolean empty) {
                                     content.addTag(getSkinnable().getLocalizedCategory(category, null));
                             }
                             iconLoader.load(imageContainer.imageProperty(), item.iconUrl());
+
+                            // Check installed status
+                            installedLabel.setVisible(false);
+                            installedLabel.setManaged(false);
+                            RemoteAddon currentItem = item;
+                            checkInstalledInList(getSkinnable(), item, installed -> {
+                                if (getItem() == currentItem) {
+                                    installedLabel.setVisible(installed);
+                                    installedLabel.setManaged(installed);
+                                }
+                            });
+
                             setGraphic(wrapper);
                         }
                     }

HMCL/src/main/java/org/jackhuang/hmcl/ui/versions/DownloadPage.java

@@ -49,6 +49,7 @@
 import org.jackhuang.hmcl.util.versioning.GameVersionNumber;
 import org.jetbrains.annotations.Nullable;
 
+import java.nio.file.Files;
 import java.nio.file.Path;
 import java.util.*;
 import java.util.stream.Stream;
@@ -422,6 +423,14 @@ private static final class AddonItem extends StackPane {
             VBox pane = new VBox(8);
             pane.setPadding(new Insets(8, 0, 8, 0));
 
+            Label installedLabel = new Label();
+            installedLabel.setGraphic(SVG.CHECK_CIRCLE.createIcon(16));
+            installedLabel.setText(i18n("addon.installed"));
+            installedLabel.getStyleClass().add("label-installed");
+            installedLabel.setVisible(false);
+            installedLabel.setManaged(false);
+            installedLabel.setMouseTransparent(true);
+
             {
                 HBox descPane = new HBox(8);
                 descPane.setPadding(new Insets(0, 8, 0, 8));
@@ -476,19 +485,56 @@ private static final class AddonItem extends StackPane {
                         }
                     }
 
-                    descPane.getChildren().setAll(graphicPane, content);
+                    descPane.getChildren().setAll(graphicPane, content, installedLabel);
                 }
 
                 pane.getChildren().add(descPane);
             }
 
+            // Check if the file is already installed in the target instance
+            checkInstalled(selfPage, dataItem, installed -> {
+                installedLabel.setVisible(installed);
+                installedLabel.setManaged(installed);
+            });
+
             RipplerContainer container = new RipplerContainer(pane);
             FXUtils.onClicked(container, () -> Controllers.dialog(new AddonVersion(mod, dataItem, selfPage)));
             getChildren().setAll(container);
 
             // Workaround for https://github.com/HMCL-dev/HMCL/issues/2129
             this.setMinHeight(50);
         }
+
+        private static void checkInstalled(DownloadPage selfPage, RemoteAddon.Version dataItem, java.util.function.Consumer<Boolean> callback) {
+            HMCLGameRepository.InstanceReference ref = selfPage.instanceReference;
+            if (ref.repository() == null || ref.instanceId() == null) {
+                callback.accept(false);
+                return;
+            }
+
+            Path targetDir;
+            switch (selfPage.type) {
+                case MOD:
+                    targetDir = ref.repository().getModsDirectory(ref.instanceId());
+                    break;
+                case RESOURCE_PACK:
+                    targetDir = ref.repository().getResourcePackDirectory(ref.instanceId());
+                    break;
+                case SHADER_PACK:
+                    targetDir = ref.repository().getShaderPackDirectory(ref.instanceId());
+                    break;
+                default:
+                    callback.accept(false);
+                    return;
+            }
+
+            Path targetFile = targetDir.resolve(dataItem.file().filename());
+
+            Task.supplyAsync(() -> Files.exists(targetFile))
+                    .whenComplete(Schedulers.javafx(), (exists, exception) -> {
+                        callback.accept(exists != null && exists);
+                    }).start();
+        }
     }
 
     private static final class AddonVersion extends JFXDialogLayout {

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

@@ -198,6 +198,7 @@ addon.dependency.incompatible=Incompatible Addons (Installing these addons at th
 addon.dependency.broken=Broken Dependencies (This addon existed before, but it does not exist anymore. Try using another download source.)
 addon.download.title.release=Minecraft %s
 addon.download.title.snapshot=Minecraft %s (Snapshots)
+addon.installed=Installed
 addon.modrinth=Modrinth
 
 archive.author=Author(s)

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

@@ -196,6 +196,7 @@ addon.dependency.incompatible=不相容附加內容 (與正在下載的檔案同
 addon.dependency.broken=損壞的相依內容 (該相依內容曾經存在於附加內容下載源中，但現在已被刪除，請嘗試其他下載源)
 addon.download.title.release=Minecraft %s
 addon.download.title.snapshot=Minecraft %s (快照)
+addon.installed=已安裝
 addon.modrinth=Modrinth
 
 archive.author=作者

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

@@ -198,6 +198,7 @@ addon.dependency.incompatible=不兼容的附加内容 (同时与正在下载的
 addon.dependency.broken=损坏的前置内容 (该前置内容曾经在该附加内容下载源上存在过，但现在被删除了，换个下载源试试吧)
 addon.download.title.release=Minecraft %s
 addon.download.title.snapshot=Minecraft %s (快照)
+addon.installed=已安装
 addon.modrinth=Modrinth
 
 archive.author=作者

HMCLCore/src/main/java/org/jackhuang/hmcl/game/DefaultGameRepository.java

@@ -151,6 +151,11 @@ public Path getResourcePackDirectory(String id) {
         return getRunDirectory(id).resolve("resourcepacks");
     }
 
+    @Override
+    public Path getShaderPackDirectory(String id) {
+        return getRunDirectory(id).resolve("shaderpacks");
+    }
+
     @Override
     public Path getVersionRoot(String id) {
         return getBaseDirectory().resolve("versions/" + id);

HMCLCore/src/main/java/org/jackhuang/hmcl/game/GameRepository.java

@@ -143,6 +143,12 @@ default Task<Void> refreshVersionsAsync() {
     /// @return the resource pack directory
     Path getResourcePackDirectory(String id);
 
+    /// Get the directory for placing shader packs.
+    ///
+    /// @param id instance id
+    /// @return the shader pack directory
+    Path getShaderPackDirectory(String id);
+
     /**
      * Get minecraft jar
      *