1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
|
/*
* Copyright (C) 2011 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "WebDragClient.h"
#include "ShareableBitmap.h"
#include "WebCoreArgumentCoders.h"
#include "WebPage.h"
#include "WebPageProxyMessages.h"
#include <WebCore/BitmapInfo.h>
#include <WebCore/COMPtr.h>
#include <WebCore/ClipboardWin.h>
#include <WebCore/DragController.h>
#include <WebCore/Frame.h>
#include <WebCore/GraphicsContext.h>
#include <WebCore/Page.h>
#include <shlobj.h>
using namespace WebCore;
namespace WebKit {
static DWORD draggingSourceOperationMaskToDragCursors(DragOperation op)
{
DWORD result = DROPEFFECT_NONE;
if (op == DragOperationEvery)
return DROPEFFECT_COPY | DROPEFFECT_LINK | DROPEFFECT_MOVE;
if (op & DragOperationCopy)
result |= DROPEFFECT_COPY;
if (op & DragOperationLink)
result |= DROPEFFECT_LINK;
if (op & DragOperationMove)
result |= DROPEFFECT_MOVE;
if (op & DragOperationGeneric)
result |= DROPEFFECT_MOVE;
return result;
}
void WebDragClient::startDrag(DragImageRef image, const IntPoint& imageOrigin, const IntPoint& dragPoint, Clipboard* clipboard, Frame* frame, bool isLink)
{
COMPtr<IDataObject> dataObject = static_cast<ClipboardWin*>(clipboard)->dataObject();
if (!dataObject)
return;
OwnPtr<HDC> bitmapDC(CreateCompatibleDC(0));
BITMAPINFO bitmapInfo = {0};
bitmapInfo.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
GetDIBits(bitmapDC.get(), image, 0, 0, 0, &bitmapInfo, DIB_RGB_COLORS);
if (bitmapInfo.bmiHeader.biSizeImage <= 0)
bitmapInfo.bmiHeader.biSizeImage = bitmapInfo.bmiHeader.biWidth * abs(bitmapInfo.bmiHeader.biHeight) * (bitmapInfo.bmiHeader.biBitCount + 7) / 8;
RefPtr<SharedMemory> memoryBuffer = SharedMemory::create(bitmapInfo.bmiHeader.biSizeImage);
bitmapInfo.bmiHeader.biCompression = BI_RGB;
GetDIBits(bitmapDC.get(), image, 0, bitmapInfo.bmiHeader.biHeight, memoryBuffer->data(), &bitmapInfo, DIB_RGB_COLORS);
SharedMemory::Handle handle;
if (!memoryBuffer->createHandle(handle, SharedMemory::ReadOnly))
return;
DWORD okEffect = draggingSourceOperationMaskToDragCursors(m_page->corePage()->dragController()->sourceDragOperation());
DragData dragData(dataObject.get(), IntPoint(), IntPoint(), DragOperationNone);
m_page->send(Messages::WebPageProxy::StartDragDrop(imageOrigin, dragPoint, okEffect, dragData.dragDataMap(), IntSize(bitmapInfo.bmiHeader.biWidth, bitmapInfo.bmiHeader.biHeight), handle, isLink), m_page->pageID());
}
} // namespace WebKit
|
