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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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 CONTENT_BROWSER_WEB_CONTENTS_WEB_DRAG_SOURCE_WIN_H_ | 5 #ifndef CONTENT_BROWSER_WEB_CONTENTS_WEB_DRAG_SOURCE_WIN_H_ |
6 #define CONTENT_BROWSER_WEB_CONTENTS_WEB_DRAG_SOURCE_WIN_H_ | 6 #define CONTENT_BROWSER_WEB_CONTENTS_WEB_DRAG_SOURCE_WIN_H_ |
7 | 7 |
8 #include "base/basictypes.h" | 8 #include "base/basictypes.h" |
9 #include "content/public/browser/notification_observer.h" | 9 #include "content/public/browser/notification_observer.h" |
10 #include "content/public/browser/notification_registrar.h" | 10 #include "content/public/browser/notification_registrar.h" |
(...skipping 11 matching lines...) Expand all Loading... | |
22 class WebContentsImpl; | 22 class WebContentsImpl; |
23 | 23 |
24 // An IDropSource implementation for a WebContentsImpl. Handles notifications | 24 // An IDropSource implementation for a WebContentsImpl. Handles notifications |
25 // sent by an active drag-drop operation as the user mouses over other drop | 25 // sent by an active drag-drop operation as the user mouses over other drop |
26 // targets on their system. This object tells Windows whether or not the drag | 26 // targets on their system. This object tells Windows whether or not the drag |
27 // should continue, and supplies the appropriate cursors. | 27 // should continue, and supplies the appropriate cursors. |
28 class WebDragSource : public ui::DragSourceWin, | 28 class WebDragSource : public ui::DragSourceWin, |
29 public NotificationObserver { | 29 public NotificationObserver { |
30 public: | 30 public: |
31 // Create a new DragSource for a given HWND and WebContents. | 31 // Create a new DragSource for a given HWND and WebContents. |
32 WebDragSource(gfx::NativeWindow source_wnd, WebContents* web_contents); | 32 WebDragSource(gfx::NativeWindow source_wnd, |
33 WebContents* web_contents, | |
34 ui::DragDropTypes::DragEventSource event_source); | |
33 virtual ~WebDragSource(); | 35 virtual ~WebDragSource(); |
34 | 36 |
35 // NotificationObserver implementation. | 37 // NotificationObserver implementation. |
36 virtual void Observe(int type, | 38 virtual void Observe(int type, |
37 const NotificationSource& source, | 39 const NotificationSource& source, |
38 const NotificationDetails& details); | 40 const NotificationDetails& details); |
39 | 41 |
40 void set_effect(DWORD effect) { effect_ = effect; } | 42 void set_effect(DWORD effect) { effect_ = effect; } |
41 // Used to set the active data object for the current drag operation. The | 43 // Used to set the active data object for the current drag operation. The |
42 // caller must ensure that |data| is not destroyed before the nested drag loop | 44 // caller must ensure that |data| is not destroyed before the nested drag loop |
43 // terminates. | 45 // terminates. |
44 void set_data(ui::OSExchangeData* data) { data_ = data; } | 46 void set_data(ui::OSExchangeData* data) { data_ = data; } |
45 | 47 |
46 protected: | 48 protected: |
47 // ui::DragSourceWin | 49 // ui::DragSourceWin |
48 virtual void OnDragSourceCancel(); | 50 virtual void OnDragSourceCancel(); |
49 virtual void OnDragSourceDrop(); | 51 virtual void OnDragSourceDrop(); |
50 virtual void OnDragSourceMove(); | 52 virtual void OnDragSourceMove(); |
51 | 53 |
52 private: | 54 private: |
53 // Cannot construct thusly. | 55 // Cannot construct thusly. |
54 WebDragSource(); | 56 WebDragSource(); |
55 | 57 |
56 // OnDragSourceDrop schedules its main work to be done after IDropTarget::Drop | 58 // OnDragSourceDrop schedules its main work to be done after IDropTarget::Drop |
57 // by posting a task to this function. | 59 // by posting a task to this function. |
58 void DelayedOnDragSourceDrop(); | 60 void DelayedOnDragSourceDrop(); |
59 | 61 |
62 void OnDragSourceEnded(); | |
dcheng
2013/05/28 20:34:02
I feel like this could use a slightly better name.
Hongbo Min
2013/05/29 06:08:04
Done.
| |
63 | |
60 // Keep a reference to the window so we can translate the cursor position. | 64 // Keep a reference to the window so we can translate the cursor position. |
61 gfx::NativeWindow source_wnd_; | 65 gfx::NativeWindow source_wnd_; |
62 | 66 |
63 // We use this as a channel to the renderer to tell it about various drag | 67 // We use this as a channel to the renderer to tell it about various drag |
64 // drop events that it needs to know about (such as when a drag operation it | 68 // drop events that it needs to know about (such as when a drag operation it |
65 // initiated terminates). | 69 // initiated terminates). |
66 WebContentsImpl* web_contents_; | 70 WebContentsImpl* web_contents_; |
67 | 71 |
68 NotificationRegistrar registrar_; | 72 NotificationRegistrar registrar_; |
69 | 73 |
70 DWORD effect_; | 74 DWORD effect_; |
71 | 75 |
72 ui::OSExchangeData* data_; | 76 ui::OSExchangeData* data_; |
73 | 77 |
74 DISALLOW_COPY_AND_ASSIGN(WebDragSource); | 78 DISALLOW_COPY_AND_ASSIGN(WebDragSource); |
75 }; | 79 }; |
76 | 80 |
77 } // namespace content | 81 } // namespace content |
78 | 82 |
79 #endif // CONTENT_BROWSER_WEB_CONTENTS_WEB_DRAG_SOURCE_WIN_H_ | 83 #endif // CONTENT_BROWSER_WEB_CONTENTS_WEB_DRAG_SOURCE_WIN_H_ |
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