| // 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_base_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_BASE_EXPORT | 
 | @interface HoverImageMenuButton : NSPopUpButton { | 
 |  @private | 
 |   ui::ScopedCrTrackingArea trackingArea_; | 
 | } | 
 |  | 
 | - (HoverImageMenuButtonCell*)hoverImageMenuButtonCell; | 
 |  | 
 | @end | 
 |  | 
 | #endif  // UI_BASE_COCOA_CONTROLS_HOVER_IMAGE_MENU_BUTTON_H_ |