15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifndef UI_VIEWS_CONTROLS_MENU_MENU_HOST_H_ 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define UI_VIEWS_CONTROLS_MENU_MENU_HOST_H_ 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/compiler_specific.h" 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/gfx/rect.h" 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/views/widget/widget.h" 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace views { 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class NativeWidget; 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class SubmenuView; 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class View; 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class Widget; 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// SubmenuView uses a MenuHost to house the SubmenuView. 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// SubmenuView owns the MenuHost. When SubmenuView is done with the MenuHost 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// |DestroyMenuHost| is invoked. The one exception to this is if the native 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// OS destroys the widget out from under us, in which case |MenuHostDestroyed| 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// is invoked back on the SubmenuView and the SubmenuView then drops references 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// to the MenuHost. 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class MenuHost : public Widget { 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) explicit MenuHost(SubmenuView* submenu); 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual ~MenuHost(); 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Initializes and shows the MenuHost. 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // WARNING: |parent| may be NULL. 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void InitMenuHost(Widget* parent, 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const gfx::Rect& bounds, 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) View* contents_view, 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool do_capture); 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Returns true if the menu host is visible. 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool IsMenuHostVisible(); 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Shows the menu host. If |do_capture| is true the menu host should do a 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // mouse grab. 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void ShowMenuHost(bool do_capture); 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Hides the menu host. 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void HideMenuHost(); 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Destroys and deletes the menu host. 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void DestroyMenuHost(); 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Sets the bounds of the menu host. 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void SetMenuHostBounds(const gfx::Rect& bounds); 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Releases a mouse grab installed by |ShowMenuHost|. 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void ReleaseMenuHostCapture(); 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) private: 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Overridden from Widget: 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual internal::RootView* CreateRootView() OVERRIDE; 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void OnMouseCaptureLost() OVERRIDE; 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void OnNativeWidgetDestroyed() OVERRIDE; 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void OnOwnerClosing() OVERRIDE; 63116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch virtual void OnDragWillStart() OVERRIDE; 64116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch virtual void OnDragComplete() OVERRIDE; 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The view we contain. 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SubmenuView* submenu_; 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // If true, DestroyMenuHost has been invoked. 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool destroying_; 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // If true and capture is lost we don't notify the delegate. 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool ignore_capture_lost_; 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(MenuHost); 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace views 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif // UI_VIEWS_CONTROLS_MENU_MENU_HOST_H_ 81