Let the ActionBar handle keyboard shortcuts.

Bug: 18021345
Change-Id: I5df8711dcd020f172f798745846e7b6c05c69191

core/java/android/app/ActionBar.java

@@ -1056,6 +1056,11 @@ public abstract class ActionBar {
         return false;
     }
 
+    /** @hide */
+    public boolean onKeyShortcut(int keyCode, KeyEvent event) {
+        return false;
+    }
+
     /** @hide */
     public boolean collapseActionView() {
         return false;

core/java/android/app/Activity.java

@@ -2469,7 +2469,9 @@ public class Activity extends ContextThemeWrapper
      * @return True if the key shortcut was handled.
      */
     public boolean onKeyShortcut(int keyCode, KeyEvent event) {
-        return false;
+        // Let the Action Bar have a chance at handling the shortcut.
+        ActionBar actionBar = getActionBar();
+        return (actionBar != null && actionBar.onKeyShortcut(keyCode, event));
     }
 
     /**

core/java/com/android/internal/app/ToolbarActionBar.java

@@ -463,6 +463,18 @@ public class ToolbarActionBar extends ActionBar {
         return true;
     }
 
+    @Override
+    public boolean onKeyShortcut(int keyCode, KeyEvent event) {
+        Menu menu = mDecorToolbar.getMenu();
+        if (menu != null) {
+            menu.performShortcut(keyCode, event, 0);
+        }
+        // This action bar always returns true for handling keyboard shortcuts.
+        // This will block the window from preparing a temporary panel to handle
+        // keyboard shortcuts.
+        return true;
+    }
+
     public void addOnMenuVisibilityListener(OnMenuVisibilityListener listener) {
         mMenuVisibilityListeners.add(listener);
     }