2 * Copyright (C) 2011 Igalia S.L.
4 * Redistribution and use in source and binary forms, with or without
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27 #include "WebDragClient.h"
29 #include "ArgumentCodersGtk.h"
30 #include "ShareableBitmap.h"
32 #include "WebPageProxyMessages.h"
33 #include <WebCore/ClipboardGtk.h>
34 #include <WebCore/DragData.h>
35 #include <WebCore/GraphicsContext.h>
36 #include <WebCore/PlatformContextCairo.h>
38 using namespace WebCore;
42 static PassRefPtr<ShareableBitmap> convertCairoSurfaceToShareableBitmap(cairo_surface_t* surface)
47 IntSize imageSize(cairo_image_surface_get_width(surface), cairo_image_surface_get_height(surface));
48 RefPtr<ShareableBitmap> bitmap = ShareableBitmap::createShareable(imageSize, ShareableBitmap::SupportsAlpha);
49 OwnPtr<GraphicsContext> graphicsContext = bitmap->createGraphicsContext();
51 graphicsContext->platformContext()->drawSurfaceToContext(surface, IntRect(IntPoint(), imageSize), IntRect(IntPoint(), imageSize), graphicsContext.get());
52 return bitmap.release();
55 void WebDragClient::startDrag(DragImageRef dragImage, const IntPoint& clientPosition, const IntPoint& globalPosition, Clipboard* clipboard, Frame*, bool)
57 RefPtr<ShareableBitmap> bitmap = convertCairoSurfaceToShareableBitmap(dragImage);
58 ShareableBitmap::Handle handle;
60 // If we have a bitmap, but cannot create a handle to it, we fail early.
61 if (bitmap && !bitmap->createHandle(handle))
64 RefPtr<DataObjectGtk> dataObject = reinterpret_cast<ClipboardGtk*>(clipboard)->dataObject();
65 DragData dragData(dataObject.get(), clientPosition, globalPosition, clipboard->sourceOperation());
66 m_page->send(Messages::WebPageProxy::StartDrag(dragData, handle));
69 }; // namespace WebKit.