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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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