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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 #include "content/browser/web_contents/web_contents_drag_win.h" | 5 #include "content/browser/web_contents/web_contents_drag_win.h" |
6 | 6 |
7 #include <windows.h> | 7 #include <windows.h> |
8 | 8 |
9 #include <string> | 9 #include <string> |
10 | 10 |
11 #include "base/bind.h" | 11 #include "base/bind.h" |
12 #include "base/file_util.h" | 12 #include "base/file_util.h" |
13 #include "base/files/file_path.h" | 13 #include "base/files/file_path.h" |
14 #include "base/message_loop.h" | 14 #include "base/message_loop.h" |
15 #include "base/pickle.h" | 15 #include "base/pickle.h" |
16 #include "base/threading/platform_thread.h" | 16 #include "base/threading/platform_thread.h" |
17 #include "base/threading/thread.h" | 17 #include "base/threading/thread.h" |
18 #include "base/utf_string_conversions.h" | 18 #include "base/utf_string_conversions.h" |
19 #include "content/browser/download/drag_download_file.h" | 19 #include "content/browser/download/drag_download_file.h" |
20 #include "content/browser/download/drag_download_util.h" | 20 #include "content/browser/download/drag_download_util.h" |
21 #include "content/browser/renderer_host/render_widget_host_view_win.h" | |
21 #include "content/browser/web_contents/web_drag_dest_win.h" | 22 #include "content/browser/web_contents/web_drag_dest_win.h" |
22 #include "content/browser/web_contents/web_drag_source_win.h" | 23 #include "content/browser/web_contents/web_drag_source_win.h" |
23 #include "content/browser/web_contents/web_drag_utils_win.h" | 24 #include "content/browser/web_contents/web_drag_utils_win.h" |
24 #include "content/public/browser/browser_thread.h" | 25 #include "content/public/browser/browser_thread.h" |
25 #include "content/public/browser/content_browser_client.h" | 26 #include "content/public/browser/content_browser_client.h" |
26 #include "content/public/browser/web_contents.h" | 27 #include "content/public/browser/web_contents.h" |
27 #include "content/public/browser/web_contents_view.h" | 28 #include "content/public/browser/web_contents_view.h" |
28 #include "content/public/browser/web_drag_dest_delegate.h" | 29 #include "content/public/browser/web_drag_dest_delegate.h" |
29 #include "net/base/net_util.h" | 30 #include "net/base/net_util.h" |
30 #include "third_party/skia/include/core/SkBitmap.h" | 31 #include "third_party/skia/include/core/SkBitmap.h" |
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42 using WebKit::WebDragOperationCopy; | 43 using WebKit::WebDragOperationCopy; |
43 using WebKit::WebDragOperationLink; | 44 using WebKit::WebDragOperationLink; |
44 using WebKit::WebDragOperationMove; | 45 using WebKit::WebDragOperationMove; |
45 | 46 |
46 namespace content { | 47 namespace content { |
47 namespace { | 48 namespace { |
48 | 49 |
49 HHOOK msg_hook = NULL; | 50 HHOOK msg_hook = NULL; |
50 DWORD drag_out_thread_id = 0; | 51 DWORD drag_out_thread_id = 0; |
51 bool mouse_up_received = false; | 52 bool mouse_up_received = false; |
53 const int kMaxAbsoluteCoordinate = 65535; | |
52 | 54 |
53 LRESULT CALLBACK MsgFilterProc(int code, WPARAM wparam, LPARAM lparam) { | 55 LRESULT CALLBACK MsgFilterProc(int code, WPARAM wparam, LPARAM lparam) { |
54 if (code == base::MessagePumpForUI::kMessageFilterCode && | 56 if (code == base::MessagePumpForUI::kMessageFilterCode && |
55 !mouse_up_received) { | 57 !mouse_up_received) { |
56 MSG* msg = reinterpret_cast<MSG*>(lparam); | 58 MSG* msg = reinterpret_cast<MSG*>(lparam); |
57 // We do not care about WM_SYSKEYDOWN and WM_SYSKEYUP because when ALT key | 59 // We do not care about WM_SYSKEYDOWN and WM_SYSKEYUP because when ALT key |
58 // is pressed down on drag-and-drop, it means to create a link. | 60 // is pressed down on drag-and-drop, it means to create a link. |
59 if (msg->message == WM_MOUSEMOVE || msg->message == WM_LBUTTONUP || | 61 if (msg->message == WM_MOUSEMOVE || msg->message == WM_LBUTTONUP || |
60 msg->message == WM_KEYDOWN || msg->message == WM_KEYUP) { | 62 msg->message == WM_KEYDOWN || msg->message == WM_KEYUP) { |
61 // Forward the message from the UI thread to the drag-and-drop thread. | 63 // Forward the message from the UI thread to the drag-and-drop thread. |
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157 WebDragOperationsMask ops, | 159 WebDragOperationsMask ops, |
158 const gfx::ImageSkia& image, | 160 const gfx::ImageSkia& image, |
159 const gfx::Vector2d& image_offset) { | 161 const gfx::Vector2d& image_offset) { |
160 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); | 162 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); |
161 | 163 |
162 drag_source_ = new WebDragSource(source_window_, web_contents_); | 164 drag_source_ = new WebDragSource(source_window_, web_contents_); |
163 | 165 |
164 const GURL& page_url = web_contents_->GetURL(); | 166 const GURL& page_url = web_contents_->GetURL(); |
165 const std::string& page_encoding = web_contents_->GetEncoding(); | 167 const std::string& page_encoding = web_contents_->GetEncoding(); |
166 | 168 |
169 RenderWidgetHostViewWin* rwhv = | |
170 static_cast<RenderWidgetHostViewWin*> | |
171 (web_contents_->GetRenderWidgetHostView()); | |
167 // If it is not drag-out, do the drag-and-drop in the current UI thread. | 172 // If it is not drag-out, do the drag-and-drop in the current UI thread. |
168 if (drop_data.download_metadata.empty()) { | 173 if (drop_data.download_metadata.empty()) { |
174 // If RWHV has a valid long press gesture, since DoDragDrop will run into | |
175 // itself loop and start a dragging session if and only if a mouse button | |
176 // is down and then moves, so we need to programmatically send out | |
177 // mouse down event and adjust the cursor position for DoDragDrop. | |
178 if (rwhv->has_valid_long_press_gesture()) | |
179 SendMouseEventForTouchDnD(); | |
180 | |
169 if (DoDragging(drop_data, ops, page_url, page_encoding, | 181 if (DoDragging(drop_data, ops, page_url, page_encoding, |
170 image, image_offset)) | 182 image, image_offset)) |
171 EndDragging(); | 183 EndDragging(); |
172 return; | 184 return; |
173 } | 185 } |
174 | 186 |
175 // Start a background thread to do the drag-and-drop. | 187 // Start a background thread to do the drag-and-drop. |
176 DCHECK(!drag_drop_thread_.get()); | 188 DCHECK(!drag_drop_thread_.get()); |
177 drag_drop_thread_.reset(new DragDropThread(this)); | 189 drag_drop_thread_.reset(new DragDropThread(this)); |
178 base::Thread::Options options; | 190 base::Thread::Options options; |
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400 | 412 |
401 drag_source_->CancelDrag(); | 413 drag_source_->CancelDrag(); |
402 } | 414 } |
403 | 415 |
404 void WebContentsDragWin::CloseThread() { | 416 void WebContentsDragWin::CloseThread() { |
405 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); | 417 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); |
406 | 418 |
407 drag_drop_thread_.reset(); | 419 drag_drop_thread_.reset(); |
408 } | 420 } |
409 | 421 |
422 void WebContentsDragWin::SendMouseEventForTouchDnD() { | |
423 RenderWidgetHostViewWin* rwhv = | |
424 static_cast<RenderWidgetHostViewWin*> | |
425 (web_contents_->GetRenderWidgetHostView()); | |
426 | |
427 if (!rwhv) | |
428 return; | |
429 | |
430 RECT screen_rect; | |
431 ::GetWindowRect(::GetDesktopWindow(), &screen_rect); | |
432 int screen_width = screen_rect.right - screen_rect.left; | |
433 int screen_height = screen_rect.bottom - screen_rect.top; | |
434 gfx::Point last_touch_position = rwhv->GetLastTouchEventLocation(); | |
435 | |
436 // Map the screen coordinate to the normalized absolute coordinate. | |
437 int absolute_x = | |
438 last_touch_position.x() * kMaxAbsoluteCoordinate / screen_width; | |
439 int absolute_y = | |
440 last_touch_position.y() * kMaxAbsoluteCoordinate / screen_height; | |
441 | |
442 // Send MOUSEEVENTF_RIGHTDOWN event followed by MOUSEEVENTF_MOVE event. | |
443 // | |
444 // The reason why not to merge these 2 mouse events into one is, we don't | |
445 // want DoDragDrop to get mouse event firstly which lead to drop the drag | |
446 // source. | |
447 // | |
448 // On Windows, once a touch point is removed from screen after long press, | |
449 // a MOUSEEVENTF_RIGHTUP event will be sent out, so we send the down event | |
450 // paired with it to complete DoDragDrop session. | |
451 INPUT ip; | |
dcheng
2013/04/15 18:07:37
Initialize this with = {}? The current code leaves
| |
452 ip.type = INPUT_MOUSE; | |
453 ip.mi.dwFlags = MOUSEEVENTF_RIGHTDOWN | MOUSEEVENTF_ABSOLUTE; | |
dcheng
2013/04/15 18:07:37
Why do we use the right mouse button? How come we
Hongbo Min
2013/04/16 01:13:44
The reason is, if we just simulate left mouse butt
dcheng
2013/04/16 01:27:28
Who's triggering the right mouse button up event t
| |
454 ip.mi.time = 0; | |
455 ip.mi.dx = absolute_x; | |
456 ip.mi.dy = absolute_y; | |
457 ::SendInput(1, &ip, sizeof(INPUT)); | |
458 | |
459 // Send MOUSEEVENTF_MOVE input event. | |
460 ip.mi.dwFlags = MOUSEEVENTF_MOVE | MOUSEEVENTF_ABSOLUTE; | |
461 ::SendInput(1, &ip, sizeof(INPUT)); | |
462 } | |
463 | |
410 void WebContentsDragWin::OnWaitForData() { | 464 void WebContentsDragWin::OnWaitForData() { |
411 DCHECK(drag_drop_thread_id_ == base::PlatformThread::CurrentId()); | 465 DCHECK(drag_drop_thread_id_ == base::PlatformThread::CurrentId()); |
412 | 466 |
413 // When the left button is release and we start to wait for the data, end | 467 // When the left button is release and we start to wait for the data, end |
414 // the dragging before DoDragDrop returns. This makes the page leave the drag | 468 // the dragging before DoDragDrop returns. This makes the page leave the drag |
415 // mode so that it can start to process the normal input events. | 469 // mode so that it can start to process the normal input events. |
416 BrowserThread::PostTask( | 470 BrowserThread::PostTask( |
417 BrowserThread::UI, | 471 BrowserThread::UI, |
418 FROM_HERE, | 472 FROM_HERE, |
419 base::Bind(&WebContentsDragWin::EndDragging, this)); | 473 base::Bind(&WebContentsDragWin::EndDragging, this)); |
420 } | 474 } |
421 | 475 |
422 void WebContentsDragWin::OnDataObjectDisposed() { | 476 void WebContentsDragWin::OnDataObjectDisposed() { |
423 DCHECK(drag_drop_thread_id_ == base::PlatformThread::CurrentId()); | 477 DCHECK(drag_drop_thread_id_ == base::PlatformThread::CurrentId()); |
424 | 478 |
425 // The drag-and-drop thread is only closed after OLE is done with | 479 // The drag-and-drop thread is only closed after OLE is done with |
426 // DataObjectImpl. | 480 // DataObjectImpl. |
427 BrowserThread::PostTask( | 481 BrowserThread::PostTask( |
428 BrowserThread::UI, | 482 BrowserThread::UI, |
429 FROM_HERE, | 483 FROM_HERE, |
430 base::Bind(&WebContentsDragWin::CloseThread, this)); | 484 base::Bind(&WebContentsDragWin::CloseThread, this)); |
431 } | 485 } |
432 | 486 |
433 } // namespace content | 487 } // namespace content |
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