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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 CHROME_BROWSER_TAB_CONTENTS_WEB_DRAG_SOURCE_WIN_H_ | |
| 6 #define CHROME_BROWSER_TAB_CONTENTS_WEB_DRAG_SOURCE_WIN_H_ | |
| 7 #pragma once | |
| 8 | |
| 9 #include "base/basictypes.h" | |
| 10 #include "content/public/browser/notification_observer.h" | |
| 11 #include "content/public/browser/notification_registrar.h" | |
| 12 #include "ui/base/dragdrop/drag_source.h" | |
| 13 #include "ui/gfx/native_widget_types.h" | |
| 14 #include "ui/gfx/point.h" | |
| 15 | |
| 16 class RenderViewHost; | |
| 17 | |
| 18 namespace content { | |
| 19 class WebContents; | |
| 20 } | |
| 21 | |
| 22 // An IDropSource implementation for a TabContents. Handles notifications sent | |
| 23 // by an active drag-drop operation as the user mouses over other drop targets | |
| 24 // on their system. This object tells Windows whether or not the drag should | |
| 25 // continue, and supplies the appropriate cursors. | |
| 26 class WebDragSource : public ui::DragSource, | |
| 27 public content::NotificationObserver { | |
| 28 public: | |
| 29 // Create a new DragSource for a given HWND and WebContents. | |
| 30 WebDragSource(gfx::NativeWindow source_wnd, | |
| 31 content::WebContents* web_contents); | |
| 32 virtual ~WebDragSource(); | |
| 33 | |
| 34 // content::NotificationObserver implementation. | |
| 35 virtual void Observe(int type, | |
| 36 const content::NotificationSource& source, | |
| 37 const content::NotificationDetails& details); | |
| 38 | |
| 39 void set_effect(DWORD effect) { effect_ = effect; } | |
| 40 | |
| 41 protected: | |
| 42 // ui::DragSource | |
| 43 virtual void OnDragSourceCancel(); | |
| 44 virtual void OnDragSourceDrop(); | |
| 45 virtual void OnDragSourceMove(); | |
| 46 | |
| 47 private: | |
| 48 // Cannot construct thusly. | |
| 49 WebDragSource(); | |
| 50 | |
| 51 // OnDragSourceDrop schedules its main work to be done after IDropTarget::Drop | |
| 52 // by posting a task to this function. | |
| 53 void DelayedOnDragSourceDrop(); | |
| 54 | |
| 55 // Keep a reference to the window so we can translate the cursor position. | |
| 56 gfx::NativeWindow source_wnd_; | |
| 57 | |
| 58 // We use this as a channel to the renderer to tell it about various drag | |
| 59 // drop events that it needs to know about (such as when a drag operation it | |
| 60 // initiated terminates). | |
| 61 RenderViewHost* render_view_host_; | |
| 62 | |
| 63 content::NotificationRegistrar registrar_; | |
| 64 | |
| 65 DWORD effect_; | |
| 66 | |
| 67 DISALLOW_COPY_AND_ASSIGN(WebDragSource); | |
| 68 }; | |
| 69 | |
| 70 #endif // CHROME_BROWSER_TAB_CONTENTS_WEB_DRAG_SOURCE_WIN_H_ | |
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Chromium Code Reviews
Issue 9562049:
Move the core drag&drop code for Windows to content\browser to match Mac/GTK. I've had to add tempo… (Closed)
Base URL: svn://chrome-svn/chrome/trunk/src/