1 /* 2 * Copyright (C) 2011 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' 14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS 17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 23 * THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #include "config.h" 27 #include "WebDragClient.h" 28 29 #include "ShareableBitmap.h" 30 #include "WebCoreArgumentCoders.h" 31 #include "WebPage.h" 32 #include "WebPageProxyMessages.h" 33 #include <WebCore/BitmapInfo.h> 34 #include <WebCore/COMPtr.h> 35 #include <WebCore/ClipboardWin.h> 36 #include <WebCore/DragController.h> 37 #include <WebCore/Frame.h> 38 #include <WebCore/GraphicsContext.h> 39 #include <WebCore/Page.h> 40 #include <shlobj.h> 41 42 using namespace WebCore; 43 44 namespace WebKit { 45 46 static DWORD draggingSourceOperationMaskToDragCursors(DragOperation op) 47 { 48 DWORD result = DROPEFFECT_NONE; 49 if (op == DragOperationEvery) 50 return DROPEFFECT_COPY | DROPEFFECT_LINK | DROPEFFECT_MOVE; 51 if (op & DragOperationCopy) 52 result |= DROPEFFECT_COPY; 53 if (op & DragOperationLink) 54 result |= DROPEFFECT_LINK; 55 if (op & DragOperationMove) 56 result |= DROPEFFECT_MOVE; 57 if (op & DragOperationGeneric) 58 result |= DROPEFFECT_MOVE; 59 return result; 60 } 61 62 void WebDragClient::startDrag(DragImageRef image, const IntPoint& imageOrigin, const IntPoint& dragPoint, Clipboard* clipboard, Frame* frame, bool isLink) 63 { 64 COMPtr<IDataObject> dataObject = static_cast<ClipboardWin*>(clipboard)->dataObject(); 65 66 if (!dataObject) 67 return; 68 69 OwnPtr<HDC> bitmapDC(CreateCompatibleDC(0)); 70 BITMAPINFO bitmapInfo = {0}; 71 bitmapInfo.bmiHeader.biSize = sizeof(BITMAPINFOHEADER); 72 GetDIBits(bitmapDC.get(), image, 0, 0, 0, &bitmapInfo, DIB_RGB_COLORS); 73 if (bitmapInfo.bmiHeader.biSizeImage <= 0) 74 bitmapInfo.bmiHeader.biSizeImage = bitmapInfo.bmiHeader.biWidth * abs(bitmapInfo.bmiHeader.biHeight) * (bitmapInfo.bmiHeader.biBitCount + 7) / 8; 75 76 RefPtr<SharedMemory> memoryBuffer = SharedMemory::create(bitmapInfo.bmiHeader.biSizeImage); 77 78 bitmapInfo.bmiHeader.biCompression = BI_RGB; 79 GetDIBits(bitmapDC.get(), image, 0, bitmapInfo.bmiHeader.biHeight, memoryBuffer->data(), &bitmapInfo, DIB_RGB_COLORS); 80 81 SharedMemory::Handle handle; 82 if (!memoryBuffer->createHandle(handle, SharedMemory::ReadOnly)) 83 return; 84 DWORD okEffect = draggingSourceOperationMaskToDragCursors(m_page->corePage()->dragController()->sourceDragOperation()); 85 DragData dragData(dataObject.get(), IntPoint(), IntPoint(), DragOperationNone); 86 m_page->send(Messages::WebPageProxy::StartDragDrop(imageOrigin, dragPoint, okEffect, dragData.dragDataMap(), IntSize(bitmapInfo.bmiHeader.biWidth, bitmapInfo.bmiHeader.biHeight), handle, isLink), m_page->pageID()); 87 } 88 89 } // namespace WebKit 90
