Menu for the OSX app launcher.

ui/base/cocoa/controls/hover_image_menu_button.h

+// Copyright 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef UI_BASE_COCOA_CONTROLS_HOVER_IMAGE_MENU_BUTTON_H_
+#define UI_BASE_COCOA_CONTROLS_HOVER_IMAGE_MENU_BUTTON_H_
+
+#import <Cocoa/Cocoa.h>
+
+#import "ui/base/cocoa/tracking_area.h"
+#include "ui/base/ui_export.h"
+
+@class HoverImageMenuButtonCell;
+
+// An NSPopUpButton that additionally tracks mouseover state and calls
+// [[self cell] setHovered:flag] when the hover state changes. Uses
+// HoverImageMenuButtonCell as the default cellClass. Note that the menu item at
+// index 0 is ignored and client code should populate it with a dummy item.
+UI_EXPORT
+@interface HoverImageMenuButton : NSPopUpButton {
+ @private
+  ui::ScopedCrTrackingArea trackingArea_;
+}
+
+- (HoverImageMenuButtonCell*)hoverImageMenuButtonCell;
+
+@end
+
+#endif  // UI_BASE_COCOA_CONTROLS_HOVER_IMAGE_MENU_BUTTON_H_