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Side by Side Diff: views/controls/menu/nested_dispatcher_gtk.h

Issue 5110011: A non-GTK version of menus for touchui. (Closed) Base URL: http://git.chromium.org/git/chromium.git@trunk
Patch Set: fix compile for chromeos Created 10 years ago
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1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef VIEWS_CONTROLS_MENU_NESTED_DISPATCHER_GTK_H_ 5 #ifndef VIEWS_CONTROLS_MENU_NESTED_DISPATCHER_GTK_H_
6 #define VIEWS_CONTROLS_MENU_NESTED_DISPATCHER_GTK_H_ 6 #define VIEWS_CONTROLS_MENU_NESTED_DISPATCHER_GTK_H_
7 #pragma once 7 #pragma once
8 8
9 #include "base/message_loop.h" 9 #include "base/message_loop.h"
10 10
11 #if defined(TOUCH_UI)
12 typedef union _XEvent XEvent;
13 #endif
14
15 namespace views { 11 namespace views {
16 12
17 // A nested dispatcher that can out-live the creator of this 13 // A nested dispatcher that can out-live the creator of this
18 // dispatcher. This is to deal with the scenario where a menu object 14 // dispatcher. This is to deal with the scenario where a menu object
19 // is deleted while it's handling the message loop. Note that 15 // is deleted while it's handling the message loop. Note that
20 // |RunAndSelfDestruct| method always delete itself regardless of 16 // |RunAndSelfDestruct| method always delete itself regardless of
21 // whether or not the menu object is deleted, so a menu object should 17 // whether or not the menu object is deleted, so a menu object should
22 // create a new instance for each open request. 18 // create a new instance for each open request.
23 // http://crosbug.com/7228, http://crosbug.com/7929 19 // http://crosbug.com/7228, http://crosbug.com/7929
24 class NestedDispatcherGtk : public MessageLoopForUI::Dispatcher { 20 class NestedDispatcherGtk : public MessageLoopForUI::Dispatcher {
25 public: 21 public:
26 NestedDispatcherGtk(MessageLoopForUI::Dispatcher* creator, 22 NestedDispatcherGtk(MessageLoopForUI::Dispatcher* creator,
27 bool allow_nested_task); 23 bool allow_nested_task);
28 24
29 // Run the messsage loop and returns if the menu has been 25 // Run the messsage loop and returns if the menu has been
30 // deleted in the nested loop. Returns true if the menu is 26 // deleted in the nested loop. Returns true if the menu is
31 // deleted, or false otherwise. 27 // deleted, or false otherwise.
32 bool RunAndSelfDestruct(); 28 bool RunAndSelfDestruct();
33 29
34 // Tells the nested dispatcher that creator has been destroyed. 30 // Tells the nested dispatcher that creator has been destroyed.
35 void CreatorDestroyed(); 31 void CreatorDestroyed();
36 32
37 private: 33 private:
38 virtual ~NestedDispatcherGtk() {} 34 virtual ~NestedDispatcherGtk() {}
39 35
40 // Overriden from MessageLoopForUI::Dispatcher: 36 // Overriden from MessageLoopForUI::Dispatcher:
41 virtual bool Dispatch(GdkEvent* event); 37 virtual bool Dispatch(GdkEvent* event);
42 38
43 #if defined(TOUCH_UI)
44 virtual bool Dispatch(XEvent* xevent);
45 #endif
46
47 // Creator of the nested loop. 39 // Creator of the nested loop.
48 MessageLoopForUI::Dispatcher* creator_; 40 MessageLoopForUI::Dispatcher* creator_;
49 41
50 // True to allow nested task in the message loop. 42 // True to allow nested task in the message loop.
51 bool allow_nested_task_; 43 bool allow_nested_task_;
52 44
53 DISALLOW_COPY_AND_ASSIGN(NestedDispatcherGtk); 45 DISALLOW_COPY_AND_ASSIGN(NestedDispatcherGtk);
54 }; 46 };
55 47
56 } // namespace views 48 } // namespace views
57 49
58 #endif // VIEWS_CONTROLS_MENU_NESTED_DISPATCHER_GTK_H_ 50 #endif // VIEWS_CONTROLS_MENU_NESTED_DISPATCHER_GTK_H_
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