1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef CHROME_BROWSER_UI_COCOA_MENU_BUTTON_H_ 6 #define CHROME_BROWSER_UI_COCOA_MENU_BUTTON_H_ 7 8 #import <Cocoa/Cocoa.h> 9 10 #include "base/mac/scoped_nsobject.h" 11 #import "chrome/browser/ui/cocoa/toolbar/toolbar_button.h" 12 13 // This a button which displays a user-provided menu "attached" below it upon 14 // being clicked or dragged (or clicked and held). It expects a 15 // |ClickHoldButtonCell| as cell. 16 // 17 // There are two different behaviors of this button depending on the value of 18 // the |openMenuOnClick| property. If YES, the target-action mechanism will be 19 // handled internally to always show the menu when clicked. This behavior is 20 // used for the Wrench menu, for example. When the property is NO, the button 21 // can have a separate target-action but will open the menu when clicked and 22 // held. This is used for the toolbar back/forward buttons, which have a 23 // primary action and the menu as a secondary click-hold action. The default 24 // value is NO so that custom actions can be hooked up in Interface Builder. 25 @interface MenuButton : ToolbarButton { 26 @private 27 base::scoped_nsobject<NSMenu> attachedMenu_; 28 BOOL openMenuOnClick_; 29 BOOL openMenuOnRightClick_; 30 base::scoped_nsobject<NSPopUpButtonCell> popUpCell_; 31 } 32 33 // The menu to display. Note that it should have no (i.e., a blank) title and 34 // that the 0-th entry should be blank (and won't be displayed). (This is 35 // because we use a pulldown list, for which Cocoa uses the 0-th item as "title" 36 // in the button. This might change if we ever switch to a pop-up. Our direct 37 // use of the given NSMenu object means that the one can set and use NSMenu's 38 // delegate as usual.) 39 @property(retain, nonatomic) IBOutlet NSMenu* attachedMenu; 40 41 // Whether or not to open the menu when the button is clicked. Otherwise, the 42 // menu will only be opened when clicked and held. 43 @property(assign, nonatomic) BOOL openMenuOnClick; 44 45 // Whether or not to open the menu when the right button is clicked. 46 @property(assign, nonatomic) BOOL openMenuOnRightClick; 47 48 // Returns the rectangle that menus are anchored at. Can be overridden by 49 // subclasses, returns -bounds by default. 50 - (NSRect)menuRect; 51 52 @end // @interface MenuButton 53 54 // Available for subclasses. 55 @interface MenuButton (Protected) 56 - (void)configureCell; 57 @end 58 59 #endif // CHROME_BROWSER_UI_COCOA_MENU_BUTTON_H_ 60
