action to show list of all tabs from keyboard (IDEA-81685)

platform/platform-api/src/com/intellij/ui/tabs/impl/JBTabsImpl.java

@@ -64,7 +64,7 @@ import java.util.concurrent.CopyOnWriteArrayList;
 public class JBTabsImpl extends JComponent
   implements JBTabs, PropertyChangeListener, TimerListener, DataProvider, PopupMenuListener, Disposable, JBTabsPresentation, Queryable, QuickActionProvider {
 
-  static DataKey<JBTabsImpl> NAVIGATION_ACTIONS_KEY = DataKey.create("JBTabs");
+  public static DataKey<JBTabsImpl> NAVIGATION_ACTIONS_KEY = DataKey.create("JBTabs");
   
   public static final String EDITOR_TABS = "main.editor.tabs";
   public static final Color MAC_AQUA_BG_COLOR = Gray._200;
@@ -518,13 +518,22 @@ public class JBTabsImpl extends JComponent
     }
   }
 
-  private void showMorePopup(final MouseEvent e) {
+  public boolean canShowMorePopup() {
+    final SingleRowPassInfo lastLayout = mySingleRowLayout.myLastSingRowLayout;
+    return lastLayout != null && lastLayout.moreRect != null;
+  }
+
+  public void showMorePopup(@Nullable final MouseEvent e) {
+    final SingleRowPassInfo lastLayout = mySingleRowLayout.myLastSingRowLayout;
+    if (lastLayout == null) {
+      return;
+    }
     mySingleRowLayout.myMorePopup = new JPopupMenu();
     for (final TabInfo each : myVisibleInfos) {
       final JCheckBoxMenuItem item = new JCheckBoxMenuItem(each.getText());
       Color color = UIManager.getColor("MenuItem.background");
       if (color != null) {
-        if (mySingleRowLayout.myLastSingRowLayout.toDrop.contains(each)) {
+        if (lastLayout.toDrop.contains(each)) {
           color = new Color((int) (color.getRed() * 0.85f), (int) (color.getGreen() * 0.85f), (int) (color.getBlue() * 0.85f));
         }
 
@@ -555,7 +564,15 @@ public class JBTabsImpl extends JComponent
       }
     });
 
-    mySingleRowLayout.myMorePopup.show(this, e.getX(), e.getY());
+    if (e != null) {
+      mySingleRowLayout.myMorePopup.show(this, e.getX(), e.getY());
+    }
+    else {
+      final Rectangle rect = lastLayout.moreRect;
+      if (rect != null) {
+        mySingleRowLayout.myMorePopup.show(this, rect.x, rect.y+rect.height);
+      }
+    }
   }
 
 

platform/platform-impl/src/com/intellij/ide/actions/TabListAction.java

@@ -0,0 +1,48 @@
+/*
+ * Copyright 2000-2012 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.intellij.ide.actions;
+
+import com.intellij.openapi.actionSystem.AnAction;
+import com.intellij.openapi.actionSystem.AnActionEvent;
+import com.intellij.ui.tabs.impl.JBTabsImpl;
+
+/**
+ * Shows the popup of all tabs when single row editor tab layout is used and all tabs don't fit on the screen.
+ *
+ * @author yole
+ */
+public class TabListAction extends AnAction {
+  @Override
+  public void actionPerformed(AnActionEvent e) {
+    JBTabsImpl tabs = e.getData(JBTabsImpl.NAVIGATION_ACTIONS_KEY);
+    if (tabs != null) {
+      tabs.showMorePopup(null);
+    }
+  }
+
+  @Override
+  public void update(AnActionEvent e) {
+    e.getPresentation().setEnabled(isTabListAvailable(e));
+  }
+
+  private static boolean isTabListAvailable(AnActionEvent e) {
+    JBTabsImpl tabs = e.getData(JBTabsImpl.NAVIGATION_ACTIONS_KEY);
+    if (tabs == null || !tabs.isEditorTabs()) {
+      return false;
+    }
+    return tabs.canShowMorePopup();
+  }
+}

platform/platform-impl/src/com/intellij/openapi/fileEditor/impl/EditorWindow.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2000-2009 JetBrains s.r.o.
+ * Copyright 2000-2012 JetBrains s.r.o.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -464,6 +464,7 @@ public class EditorWindow {
     return myPanel.getSize();
   }
 
+  @Nullable
   public EditorTabbedContainer getTabbedPane() {
     return myTabbedPane;
   }

platform/platform-resources-en/src/messages/ActionsBundle.properties

@@ -1309,3 +1309,6 @@ action.Images.ShowThumbnails.description=Show thumbnails view for current direct
 
 action.Diff.UpdatedFiles.text=Show Diff
 action.Diff.UpdatedFiles.description=Show diff with version before update
+
+action.TabList.text=Show All Tabs
+action.TabList.description=Show dropdown with the list of all tabs in single-row tab layout

platform/platform-resources/src/idea/PlatformActions.xml

@@ -320,6 +320,7 @@
           <action id="PreviousTab" class="com.intellij.ide.actions.PreviousTabAction"/>
           <action id="CloseActiveTab" class="com.intellij.ide.actions.CloseActiveTabAction"/>
           <action id="PinActiveTab" class="com.intellij.ide.actions.PinActiveTabAction"/>
+          <action id="TabList" class="com.intellij.ide.actions.TabListAction"/>
           <separator/>
           <group id="CloseEditorsGroup">
             <action id="CloseContent" class="com.intellij.ide.actions.CloseAction"/>