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// Copyright (c) 2009 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 VIEWS_CONTROLS_MENU_MENU_HOST_ROOT_VIEW_H_
#define VIEWS_CONTROLS_MENU_MENU_HOST_ROOT_VIEW_H_
#pragma once
#include "views/widget/root_view.h"
namespace views {
class MenuController;
class SubmenuView;
// MenuHostRootView is the RootView of the window showing the menu.
// SubmenuView's scroll view is added as a child of MenuHostRootView.
// MenuHostRootView forwards relevant events to the MenuController.
//
// As all the menu items are owned by the root menu item, care must be taken
// such that when MenuHostRootView is deleted it doesn't delete the menu items.
class MenuHostRootView : public RootView {
public:
MenuHostRootView(Widget* widget, SubmenuView* submenu);
// When invoked subsequent events are NOT forwarded to the MenuController.
void suspend_events() {
suspend_events_ = true;
}
virtual bool OnMousePressed(const MouseEvent& event);
virtual bool OnMouseDragged(const MouseEvent& event);
virtual void OnMouseReleased(const MouseEvent& event, bool canceled);
virtual void OnMouseMoved(const MouseEvent& event);
virtual void ProcessOnMouseExited();
virtual bool ProcessMouseWheelEvent(const MouseWheelEvent& e);
private:
// Returns the MenuController for this MenuHostRootView.
MenuController* GetMenuController();
// The SubmenuView we contain.
SubmenuView* submenu_;
// Whether mouse dragged/released should be forwarded to the MenuController.
bool forward_drag_to_menu_controller_;
// Whether events are suspended. If true, no events are forwarded to the
// MenuController.
bool suspend_events_;
DISALLOW_COPY_AND_ASSIGN(MenuHostRootView);
};
} // namespace views
#endif // VIEWS_CONTROLS_MENU_MENU_HOST_ROOT_VIEW_H_
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