| OLD | NEW |
|---|
| (Empty) |
| 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 | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "content/browser/web_contents/web_drag_source_win.h" | |
| 6 | |
| 7 #include "base/bind.h" | |
| 8 #include "content/browser/renderer_host/render_view_host_impl.h" | |
| 9 #include "content/browser/web_contents/web_contents_impl.h" | |
| 10 #include "content/browser/web_contents/web_drag_utils_win.h" | |
| 11 #include "content/public/browser/browser_thread.h" | |
| 12 #include "content/public/browser/notification_source.h" | |
| 13 #include "content/public/browser/notification_types.h" | |
| 14 #include "ui/base/dragdrop/os_exchange_data.h" | |
| 15 | |
| 16 using blink::WebDragOperationNone; | |
| 17 | |
| 18 namespace content { | |
| 19 namespace { | |
| 20 | |
| 21 static void GetCursorPositions(gfx::NativeWindow wnd, gfx::Point* client, | |
| 22 gfx::Point* screen) { | |
| 23 POINT cursor_pos; | |
| 24 GetCursorPos(&cursor_pos); | |
| 25 screen->SetPoint(cursor_pos.x, cursor_pos.y); | |
| 26 ScreenToClient(wnd, &cursor_pos); | |
| 27 client->SetPoint(cursor_pos.x, cursor_pos.y); | |
| 28 } | |
| 29 | |
| 30 } // namespace | |
| 31 | |
| 32 /////////////////////////////////////////////////////////////////////////////// | |
| 33 // WebDragSource, public: | |
| 34 | |
| 35 WebDragSource::WebDragSource(gfx::NativeWindow source_wnd, | |
| 36 WebContents* web_contents) | |
| 37 : ui::DragSourceWin(), | |
| 38 source_wnd_(source_wnd), | |
| 39 web_contents_(static_cast<WebContentsImpl*>(web_contents)), | |
| 40 effect_(DROPEFFECT_NONE), | |
| 41 data_(NULL) { | |
| 42 registrar_.Add(this, NOTIFICATION_RENDER_VIEW_HOST_CHANGED, | |
| 43 Source<WebContents>(web_contents)); | |
| 44 registrar_.Add(this, NOTIFICATION_WEB_CONTENTS_DISCONNECTED, | |
| 45 Source<WebContents>(web_contents)); | |
| 46 } | |
| 47 | |
| 48 WebDragSource::~WebDragSource() { | |
| 49 } | |
| 50 | |
| 51 void WebDragSource::OnDragSourceCancel() { | |
| 52 // Delegate to the UI thread if we do drag-and-drop in the background thread. | |
| 53 if (!BrowserThread::CurrentlyOn(BrowserThread::UI)) { | |
| 54 BrowserThread::PostTask( | |
| 55 BrowserThread::UI, FROM_HERE, | |
| 56 base::Bind(&WebDragSource::OnDragSourceCancel, this)); | |
| 57 return; | |
| 58 } | |
| 59 | |
| 60 if (!web_contents_) | |
| 61 return; | |
| 62 | |
| 63 gfx::Point client; | |
| 64 gfx::Point screen; | |
| 65 GetCursorPositions(source_wnd_, &client, &screen); | |
| 66 web_contents_->DragSourceEndedAt(client.x(), client.y(), | |
| 67 screen.x(), screen.y(), | |
| 68 WebDragOperationNone); | |
| 69 } | |
| 70 | |
| 71 void WebDragSource::OnDragSourceDrop() { | |
| 72 DCHECK(data_); | |
| 73 data_->SetInDragLoop(false); | |
| 74 // On Windows, we check for drag end in IDropSource::QueryContinueDrag which | |
| 75 // happens before IDropTarget::Drop is called. HTML5 requires the "dragend" | |
| 76 // event to happen after the "drop" event. Since Windows calls these two | |
| 77 // directly after each other we can just post a task to handle the | |
| 78 // OnDragSourceDrop after the current task. | |
| 79 BrowserThread::PostTask( | |
| 80 BrowserThread::UI, FROM_HERE, | |
| 81 base::Bind(&WebDragSource::DelayedOnDragSourceDrop, this)); | |
| 82 } | |
| 83 | |
| 84 void WebDragSource::DelayedOnDragSourceDrop() { | |
| 85 if (!web_contents_) | |
| 86 return; | |
| 87 | |
| 88 gfx::Point client; | |
| 89 gfx::Point screen; | |
| 90 GetCursorPositions(source_wnd_, &client, &screen); | |
| 91 web_contents_->DragSourceEndedAt(client.x(), client.y(), screen.x(), | |
| 92 screen.y(), WinDragOpToWebDragOp(effect_)); | |
| 93 } | |
| 94 | |
| 95 void WebDragSource::OnDragSourceMove() { | |
| 96 // Delegate to the UI thread if we do drag-and-drop in the background thread. | |
| 97 if (!BrowserThread::CurrentlyOn(BrowserThread::UI)) { | |
| 98 BrowserThread::PostTask( | |
| 99 BrowserThread::UI, FROM_HERE, | |
| 100 base::Bind(&WebDragSource::OnDragSourceMove, this)); | |
| 101 return; | |
| 102 } | |
| 103 | |
| 104 if (!web_contents_) | |
| 105 return; | |
| 106 | |
| 107 gfx::Point client; | |
| 108 gfx::Point screen; | |
| 109 GetCursorPositions(source_wnd_, &client, &screen); | |
| 110 web_contents_->DragSourceMovedTo(client.x(), client.y(), | |
| 111 screen.x(), screen.y()); | |
| 112 } | |
| 113 | |
| 114 void WebDragSource::Observe(int type, | |
| 115 const NotificationSource& source, | |
| 116 const NotificationDetails& details) { | |
| 117 if (type == NOTIFICATION_RENDER_VIEW_HOST_CHANGED) { | |
| 118 // When the WebContents get swapped, our render view host goes away. | |
| 119 // That's OK, we can continue the drag, we just can't send messages back to | |
| 120 // our drag source. | |
| 121 web_contents_ = NULL; | |
| 122 } else if (type == NOTIFICATION_WEB_CONTENTS_DISCONNECTED) { | |
| 123 // This could be possible when we close the tab and the source is still | |
| 124 // being used in DoDragDrop at the time that the virtual file is being | |
| 125 // downloaded. | |
| 126 web_contents_ = NULL; | |
| 127 } | |
| 128 } | |
| 129 | |
| 130 } // namespace content | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 137403005:
Remove some code inside USE_AURA and OS_WIN ifdefs. (Closed)
Base URL: svn://chrome-svn/chrome/trunk/src/