Feat: Add empty state placeholders for versions

Author: KSSJW

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

@@ -33,6 +33,7 @@
 import javafx.geometry.Insets;
 import javafx.geometry.Pos;
 import javafx.scene.Node;
+import javafx.scene.control.Label;
 import javafx.scene.control.SelectionMode;
 import javafx.scene.control.SkinBase;
 import javafx.scene.image.Image;
@@ -193,6 +194,13 @@ final class DataPackListPageSkin extends SkinBase<DataPackListPage> {
 
             listView.setCellFactory(x -> new DataPackInfoListCell(listView, getSkinnable().readOnly));
             listView.getSelectionModel().setSelectionMode(SelectionMode.MULTIPLE);
+
+            StackPane placeholderContainer = new StackPane();
+            placeholderContainer.getStyleClass().add("notice-pane");
+            Label placeholderLabel = new Label(i18n("datapack.empty"));
+            placeholderContainer.getChildren().add(placeholderLabel);
+            listView.setPlaceholder(placeholderContainer);
+
             this.listView.setItems(filteredList);
             listView.getItems().addListener(listener);
 

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

@@ -219,6 +219,13 @@ final class ModListPageSkin extends SkinBase<ModListPage> {
 
             listView.setCellFactory(x -> new ModInfoListCell(listView));
             listView.getSelectionModel().setSelectionMode(SelectionMode.MULTIPLE);
+
+            StackPane placeholderContainer = new StackPane();
+            placeholderContainer.getStyleClass().add("notice-pane");
+            Label placeholderLabel = new Label(i18n("mods.empty"));
+            placeholderContainer.getChildren().add(placeholderLabel);
+            listView.setPlaceholder(placeholderContainer);
+            
             Bindings.bindContent(listView.getItems(), skinnable.getItems());
             skinnable.getItems().addListener((ListChangeListener<? super ModInfoObject>) c -> {
                 if (isSearching) {

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

@@ -371,6 +371,13 @@ private ResourcePackListPageSkin(ResourcePackListPage control) {
 
                 listView.setCellFactory(x -> new ResourcePackListCell(listView, control));
                 listView.getSelectionModel().setSelectionMode(SelectionMode.MULTIPLE);
+
+                StackPane placeholderContainer = new StackPane();
+                placeholderContainer.getStyleClass().add("notice-pane");
+                Label placeholderLabel = new Label(i18n("resourcepack.empty"));
+                placeholderContainer.getChildren().add(placeholderLabel);
+                listView.setPlaceholder(placeholderContainer);
+
                 Bindings.bindContent(listView.getItems(), control.getItems());
 
                 listView.setOnContextMenuRequested(event -> {

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

@@ -636,6 +636,12 @@ protected void updateItem(Item item, boolean empty) {
     private final class SchematicsPageSkin extends ToolbarListPageSkin<Item, SchematicsPage> {
         SchematicsPageSkin() {
             super(SchematicsPage.this);
+
+            StackPane placeholderContainer = new StackPane();
+            placeholderContainer.getStyleClass().add("notice-pane");
+            Label placeholderLabel = new Label(i18n("schematics.empty"));
+            placeholderContainer.getChildren().add(placeholderLabel);
+            listView.setPlaceholder(placeholderContainer);
         }
 
         @Override

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

@@ -24,6 +24,7 @@
 import javafx.geometry.Pos;
 import javafx.scene.Node;
 import javafx.scene.control.Control;
+import javafx.scene.control.Label;
 import javafx.scene.control.Skin;
 import javafx.scene.control.SkinBase;
 import javafx.scene.layout.BorderPane;
@@ -162,6 +163,12 @@ private final class WorldBackupsPageSkin extends ToolbarListPageSkin<BackupInfo,
 
         WorldBackupsPageSkin() {
             super(WorldBackupsPage.this);
+
+            StackPane placeholderContainer = new StackPane();
+            placeholderContainer.getStyleClass().add("notice-pane");
+            Label placeholderLabel = new Label(i18n("world.backup.empty"));
+            placeholderContainer.getChildren().add(placeholderLabel);
+            listView.setPlaceholder(placeholderContainer);
         }
 
         @Override

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

@@ -27,6 +27,7 @@
 import javafx.geometry.Insets;
 import javafx.geometry.Pos;
 import javafx.scene.Node;
+import javafx.scene.control.Label;
 import javafx.scene.control.ListCell;
 import javafx.scene.control.Skin;
 import javafx.scene.control.Tooltip;
@@ -216,6 +217,12 @@ private final class WorldListPageSkin extends ToolbarListPageSkin<World, WorldLi
 
         WorldListPageSkin() {
             super(WorldListPage.this);
+
+            StackPane placeholderContainer = new StackPane();
+            placeholderContainer.getStyleClass().add("notice-pane");
+            Label placeholderLabel = new Label(i18n("world.empty"));
+            placeholderContainer.getChildren().add(placeholderLabel);
+            listView.setPlaceholder(placeholderContainer);
         }
 
         @Override

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

@@ -1151,6 +1151,7 @@ mods.disable=Disable
 mods.download=Download Mod
 mods.download.title=Download Mod - %1s
 mods.download.recommend=Recommended Mod Version - Minecraft %1s
+mods.empty=No Mods
 mods.enable=Enable
 mods.game.version=Game Version
 mods.manage=Mods
@@ -1184,6 +1185,7 @@ nbt.title=View File - %s
 datapack=Data Packs
 datapack.add=Add
 datapack.add.title=Choose data pack archive you want to add
+datapack.empty=No Data Packs
 datapack.reload.toast=Minecraft is running. Use the /reload command to reload data packs
 datapack.title=World [%s] - Data Packs
 
@@ -1202,6 +1204,7 @@ world.backup.create.new_one=New Backup
 world.backup.create.failed=Failed to create backup.\n%s
 world.backup.create.success=Successfully created a new backup: %s
 world.backup.delete=Delete this backup
+world.backup.empty=No Backup
 world.backup.processing=Backing up ...
 world.chunkbase=Chunk Base
 world.chunkbase.end_city=End City
@@ -1221,6 +1224,7 @@ world.delete=Delete the World
 world.delete.failed=Failed to delete world.\n%s
 world.download=Download
 world.download.title=Download World - %1s
+world.empty=No Worlds
 world.export=Export the World
 world.export.title=Choose the directory for this exported world
 world.export.location=Save As
@@ -1295,6 +1299,7 @@ resourcepack.add.title=Choose resource pack archive you want to add
 resourcepack.delete.failed=Failed to delete resource pack
 resourcepack.download=Download
 resourcepack.download.title=Download Resource Pack - %1s
+resourcepack.empty=No Resource Packs
 resourcepack.manage=Resource Packs
 resourcepack.update_in_modpack.warning=Updating resource packs in a modpack can lead to irreparable results, possibly leading to incorrect textures and sounds. Are you sure you want to update?
 resourcepack.warning.invalid=Invalid pack meta
@@ -1317,6 +1322,7 @@ schematics.create_directory.failed=Failed to create directory
 schematics.create_directory.failed.already_exists=Directory already exists
 schematics.create_directory.failed.empty_name=Name cannot be empty
 schematics.create_directory.failed.invalid_name=Name contains invalid characters
+schematics.empty=No Schematics
 schematics.info.description=Description
 schematics.info.enclosing_size=Enclosing Size
 schematics.info.name=Name

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

@@ -948,6 +948,7 @@ mods.disable=停用
 mods.download=模組下載
 mods.download.title=模組下載 - %1s
 mods.download.recommend=推薦版本 - Minecraft %1s
+mods.empty=沒有模組
 mods.enable=啟用
 mods.game.version=遊戲版本
 mods.manage=模組管理
@@ -981,6 +982,7 @@ nbt.title=查看檔案 - %s
 datapack=資料包
 datapack.add=新增資料包
 datapack.add.title=選取要新增的資料包壓縮檔
+datapack.empty=沒有資料包
 datapack.reload.toast=Minecraft 正在執行，請使用 /reload 指令重新載入資料包
 datapack.title=世界 [%s] - 資料包
 
@@ -999,6 +1001,7 @@ world.backup.create.new_one=建立新備份
 world.backup.create.failed=建立備份失敗。\n%s
 world.backup.create.success=成功建立新備份：%s
 world.backup.delete=刪除此備份
+world.backup.empty=沒有備份
 world.backup.processing=正在備份中……
 world.chunkbase=世界地圖
 world.chunkbase.end_city=終界城地圖
@@ -1018,6 +1021,7 @@ world.delete=刪除此世界
 world.delete.failed=刪除世界失敗。\n%s
 world.download=下載世界
 world.download.title=世界下載 - %1s
+world.empty=沒有世界
 world.export=匯出此世界
 world.export.title=選取該世界的儲存位置
 world.export.location=儲存到
@@ -1088,6 +1092,7 @@ resourcepack.add.title=選取要新增的資源包壓縮檔
 resourcepack.delete.failed=刪除資源包失敗
 resourcepack.download=下載資源包
 resourcepack.download.title=資源包下載 - %1s
+resourcepack.empty=沒有資源包
 resourcepack.manage=資源包管理
 resourcepack.update_in_modpack.warning=更新模組包中的資源包可能導致模組包損壞，使遊戲紋理和音效異常。你確定要更新嗎？
 resourcepack.warning.invalid=資源包中繼資料無效
@@ -1110,6 +1115,7 @@ schematics.create_directory.failed=建立目錄失敗
 schematics.create_directory.failed.already_exists=目錄已存在
 schematics.create_directory.failed.empty_name=名稱不能為空
 schematics.create_directory.failed.invalid_name=名稱中包含無效字元
+schematics.empty=沒有投影檔
 schematics.info.description=描述
 schematics.info.enclosing_size=框大小
 schematics.info.name=名稱

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

@@ -953,6 +953,7 @@ mods.disable=禁用
 mods.download=模组下载
 mods.download.title=模组下载 - %1s
 mods.download.recommend=推荐版本 - Minecraft %1s
+mods.empty=没有模组
 mods.enable=启用
 mods.game.version=游戏版本
 mods.manage=模组管理
@@ -986,6 +987,7 @@ nbt.title=查看文件 - %s
 datapack=数据包
 datapack.add=添加数据包
 datapack.add.title=选择要添加的数据包压缩包
+datapack.empty=没有数据包
 datapack.reload.toast=Minecraft 正在运行，请使用 /reload 命令重新加载数据包
 datapack.title=世界 [%s] - 数据包
 
@@ -1004,6 +1006,7 @@ world.backup.create.new_one=创建新备份
 world.backup.create.failed=创建备份失败。\n%s
 world.backup.create.success=成功创建新备份：%s
 world.backup.delete=删除此备份
+world.backup.empty=没有备份
 world.backup.processing=正在备份中……
 world.chunkbase=世界地图
 world.chunkbase.end_city=末地城地图
@@ -1023,6 +1026,7 @@ world.delete=删除此世界
 world.delete.failed=删除世界失败。\n%s
 world.download=下载世界
 world.download.title=世界下载 - %1s
+world.empty=没有世界
 world.export=导出此世界
 world.export.title=选择该世界的存储位置
 world.export.location=保存到
@@ -1093,6 +1097,7 @@ resourcepack.add.title=选择要添加的资源包压缩包
 resourcepack.delete.failed=删除资源包失败
 resourcepack.download=下载资源包
 resourcepack.download.title=资源包下载 - %1s
+resourcepack.empty=没有资源包
 resourcepack.manage=资源包管理
 resourcepack.update_in_modpack.warning=更新整合包中的资源包可能导致整合包损坏，使游戏纹理和音效异常。你确定要更新吗？
 resourcepack.warning.invalid=资源包元数据无效
@@ -1115,6 +1120,7 @@ schematics.create_directory.failed=创建文件夹失败
 schematics.create_directory.failed.already_exists=文件夹已存在
 schematics.create_directory.failed.empty_name=名称不能为空
 schematics.create_directory.failed.invalid_name=名称中包含非法字符
+schematics.empty=没有原理图
 schematics.info.description=描述
 schematics.info.enclosing_size=包围盒尺寸
 schematics.info.name=名称