重构 TabHeader

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

@@ -133,27 +133,33 @@ public CreateAccountPane(AccountFactory<?> factory) {
         }
 
         if (showMethodSwitcher) {
-            TabControl.Tab<?>[] tabs = new TabControl.Tab[Accounts.FACTORIES.size()];
-            TabControl.Tab<?> selected = null;
+            TabItem<?>[] tabs = new TabItem<?>[Accounts.FACTORIES.size()];
+            var tabToFactory = new IdentityHashMap<TabItem<?>, AccountFactory<?>>();
+
+            @Nullable TabItem<?> selected = null;
             for (int i = 0; i < tabs.length; i++) {
                 AccountFactory<?> f = Accounts.FACTORIES.get(i);
-                tabs[i] = new TabControl.Tab<>(Accounts.getLoginType(f), Accounts.getLocalizedLoginTypeName(f));
-                tabs[i].setUserData(f);
+                TabItem<Node> tab = new TabItem<>();
+                tabs[i] = tab;
+
+                tab.setText(Accounts.getLocalizedLoginTypeName(f));
+                tabToFactory.put(tab, f);
                 if (factory == f) {
-                    selected = tabs[i];
+                    selected = tab;
                 }
             }
 
             TabHeader tabHeader = new TabHeader(tabs);
             tabHeader.getStyleClass().add("add-account-tab-header");
             tabHeader.setMinWidth(USE_PREF_SIZE);
             tabHeader.setMaxWidth(USE_PREF_SIZE);
-            tabHeader.getSelectionModel().select(selected);
-            onChange(tabHeader.getSelectionModel().selectedItemProperty(),
+            if (selected != null)
+                tabHeader.getController().selectTab(selected);
+            onChange(tabHeader.getController().selectedTabProperty(),
                     newItem -> {
                         if (newItem == null)
                             return;
-                        AccountFactory<?> newMethod = (AccountFactory<?>) newItem.getUserData();
+                        AccountFactory<?> newMethod = tabToFactory.get(newItem);
                         settings().preferredLoginTypeProperty().set(Accounts.getLoginType(newMethod));
                         this.factory = newMethod;
                         initDetailsPane();

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

@@ -22,7 +22,7 @@
 @NotNullByDefault
 public class TransitionPane extends StackPane {
 
-    /// The requested page, or `null` before content is assigned.
+    /// The requested page, or `null` when content is absent.
     private @Nullable Node currentNode;
 
     /// The pending or running transition, or `null` when content is settled.
@@ -44,6 +44,20 @@ public TransitionPane() {
         return currentNode;
     }
 
+    /// Stops any transition and removes displayed and prewarmed content without animation.
+    /// Resets [#getCurrentNode()] to null. Repeated calls on an empty pane have no effect.
+    /// Nodes are detached even if settling the transition throws an exception.
+    public final void clearContent() {
+        try {
+            if (activeTransition != null)
+                activeTransition.stop();
+        } finally {
+            disposePreloadPane();
+            currentNode = null;
+            getChildren().clear();
+        }
+    }
+
     /// Attaches unowned content for hidden CSS and layout prewarming during scene pulses.
     /// Replaces any previous candidate without changing the current content. The hidden
     /// container uses a snapshot of this pane's content-area size and does not affect

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

@@ -14,6 +14,7 @@
 import org.jackhuang.hmcl.ui.SVG;
 import org.jackhuang.hmcl.ui.SVGContainer;
 import org.jackhuang.hmcl.ui.animation.Motion;
+import org.jetbrains.annotations.Nullable;
 
 import java.util.function.Consumer;
 
@@ -77,18 +78,25 @@ public AdvancedListBox addNavigationDrawerItem(String title, SVG leftGraphic, Ru
         return add(item);
     }
 
-    public AdvancedListBox addNavigationDrawerTab(TabHeader tabHeader, TabControl.Tab<?> tab, String title, SVG leftGraphic) {
+    /// Adds an item that activates the tab through the controller and tracks its selection state.
+    ///
+    /// @param leftGraphic the item icon, or null for no icon
+    /// @return this list box
+    public AdvancedListBox addNavigationDrawerTab(TabController controller, TabItem<?> tab, String title, @Nullable SVG leftGraphic) {
         AdvancedListItem item = createNavigationDrawerItem(title, leftGraphic);
-        item.activeProperty().bind(tabHeader.getSelectionModel().selectedItemProperty().isEqualTo(tab));
-        item.setOnAction(e -> tabHeader.select(tab));
+        item.activeProperty().bind(controller.selectedTabProperty().isEqualTo(tab));
+        item.setOnAction(e -> controller.selectTab(tab));
         return add(item);
     }
 
-    public AdvancedListBox addNavigationDrawerTab(TabHeader tabHeader, TabControl.Tab<?> tab, String title,
+    /// Adds an item that activates the tab through the controller and switches icons with its selection state.
+    ///
+    /// @return this list box
+    public AdvancedListBox addNavigationDrawerTab(TabController controller, TabItem<?> tab, String title,
                                                   SVG unselectedGraphic, SVG selectedGraphic) {
         AdvancedListItem item = createNavigationDrawerItem(title, null);
-        item.activeProperty().bind(tabHeader.getSelectionModel().selectedItemProperty().isEqualTo(tab));
-        item.setOnAction(e -> tabHeader.select(tab));
+        item.activeProperty().bind(controller.selectedTabProperty().isEqualTo(tab));
+        item.setOnAction(e -> controller.selectTab(tab));
 
         var leftGraphic = new SVGContainer(item.isActive() ? selectedGraphic : unselectedGraphic, AdvancedListItem.LEFT_ICON_SIZE);
         leftGraphic.setMouseTransparent(true);