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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 VIEWS_CONTEXT_MENU_CONTROLLER_H_ | |
6 #define VIEWS_CONTEXT_MENU_CONTROLLER_H_ | |
7 #pragma once | |
8 | |
9 #include "views/views_export.h" | |
10 | |
11 namespace gfx { | |
12 class Point; | |
13 } | |
14 | |
15 namespace views { | |
16 class View; | |
17 | |
18 // ContextMenuController is responsible for showing the context menu for a | |
19 // View. To use a ContextMenuController invoke set_context_menu_controller on a | |
20 // View. When the appropriate user gesture occurs ShowContextMenu is invoked | |
21 // on the ContextMenuController. | |
22 // | |
23 // Setting a ContextMenuController on a view makes the view process mouse | |
24 // events. | |
25 // | |
26 // It is up to subclasses that do their own mouse processing to invoke | |
27 // the appropriate ContextMenuController method, typically by invoking super's | |
28 // implementation for mouse processing. | |
29 class VIEWS_EXPORT ContextMenuController { | |
30 public: | |
31 // Invoked to show the context menu for the source view. If |is_mouse_gesture| | |
32 // is true, |p| is the location of the mouse. If |is_mouse_gesture| is false, | |
33 // this method was not invoked by a mouse gesture and |p| is the recommended | |
34 // location to show the menu at. | |
35 // | |
36 // |p| is in screen coordinates. | |
37 virtual void ShowContextMenuForView(View* source, | |
38 const gfx::Point& p, | |
39 bool is_mouse_gesture) = 0; | |
40 | |
41 protected: | |
42 virtual ~ContextMenuController() {} | |
43 }; | |
44 | |
45 } // namespace views | |
46 | |
47 #endif // VIEWS_CONTEXT_MENU_CONTROLLER_H_ | |
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