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// Copyright (c) 2011 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 CHROME_BROWSER_UI_COCOA_MENU_BUTTON_H_
#define CHROME_BROWSER_UI_COCOA_MENU_BUTTON_H_
#import <Cocoa/Cocoa.h>
#include "base/mac/scoped_nsobject.h"
#import "chrome/browser/ui/cocoa/toolbar/toolbar_button.h"
// This a button which displays a user-provided menu "attached" below it upon
// being clicked or dragged (or clicked and held). It expects a
// |ClickHoldButtonCell| as cell.
//
// There are two different behaviors of this button depending on the value of
// the |openMenuOnClick| property. If YES, the target-action mechanism will be
// handled internally to always show the menu when clicked. This behavior is
// used for the Wrench menu, for example. When the property is NO, the button
// can have a separate target-action but will open the menu when clicked and
// held. This is used for the toolbar back/forward buttons, which have a
// primary action and the menu as a secondary click-hold action. The default
// value is NO so that custom actions can be hooked up in Interface Builder.
@interface MenuButton : ToolbarButton {
@private
base::scoped_nsobject<NSMenu> attachedMenu_;
BOOL openMenuOnClick_;
BOOL openMenuOnRightClick_;
base::scoped_nsobject<NSPopUpButtonCell> popUpCell_;
}
// The menu to display. Note that it should have no (i.e., a blank) title and
// that the 0-th entry should be blank (and won't be displayed). (This is
// because we use a pulldown list, for which Cocoa uses the 0-th item as "title"
// in the button. This might change if we ever switch to a pop-up. Our direct
// use of the given NSMenu object means that the one can set and use NSMenu's
// delegate as usual.)
@property(retain, nonatomic) IBOutlet NSMenu* attachedMenu;
// Whether or not to open the menu when the button is clicked. Otherwise, the
// menu will only be opened when clicked and held.
@property(assign, nonatomic) BOOL openMenuOnClick;
// Whether or not to open the menu when the right button is clicked.
@property(assign, nonatomic) BOOL openMenuOnRightClick;
// Returns the rectangle that menus are anchored at. Can be overridden by
// subclasses, returns -bounds by default.
- (NSRect)menuRect;
@end // @interface MenuButton
// Available for subclasses.
@interface MenuButton (Protected)
- (void)configureCell;
@end
#endif // CHROME_BROWSER_UI_COCOA_MENU_BUTTON_H_
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