1/* 2 * Copyright (C) 2011 Igalia S.L. 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 "ArgumentCodersGtk.h" 30#include "ShareableBitmap.h" 31#include "WebPage.h" 32#include "WebPageProxyMessages.h" 33#include <WebCore/Clipboard.h> 34#include <WebCore/DataObjectGtk.h> 35#include <WebCore/DragData.h> 36#include <WebCore/GraphicsContext.h> 37#include <WebCore/Pasteboard.h> 38#include <WebCore/PlatformContextCairo.h> 39 40using namespace WebCore; 41 42namespace WebKit { 43 44static PassRefPtr<ShareableBitmap> convertCairoSurfaceToShareableBitmap(cairo_surface_t* surface) 45{ 46 if (!surface) 47 return 0; 48 49 IntSize imageSize(cairo_image_surface_get_width(surface), cairo_image_surface_get_height(surface)); 50 RefPtr<ShareableBitmap> bitmap = ShareableBitmap::createShareable(imageSize, ShareableBitmap::SupportsAlpha); 51 OwnPtr<GraphicsContext> graphicsContext = bitmap->createGraphicsContext(); 52 53 graphicsContext->platformContext()->drawSurfaceToContext(surface, IntRect(IntPoint(), imageSize), IntRect(IntPoint(), imageSize), graphicsContext.get()); 54 return bitmap.release(); 55} 56 57void WebDragClient::startDrag(DragImageRef dragImage, const IntPoint& clientPosition, const IntPoint& globalPosition, Clipboard* clipboard, Frame*, bool) 58{ 59 RefPtr<ShareableBitmap> bitmap = convertCairoSurfaceToShareableBitmap(dragImage); 60 ShareableBitmap::Handle handle; 61 62 // If we have a bitmap, but cannot create a handle to it, we fail early. 63 if (bitmap && !bitmap->createHandle(handle)) 64 return; 65 66 RefPtr<DataObjectGtk> dataObject = clipboard->pasteboard().dataObject(); 67 DragData dragData(dataObject.get(), clientPosition, globalPosition, clipboard->sourceOperation()); 68 m_page->send(Messages::WebPageProxy::StartDrag(dragData, handle)); 69} 70 71}; // namespace WebKit. 72