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/*
* Copyright (C) 2009 Google 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:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
* OWNER OR 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 "web/DragClientImpl.h"
#include "core/clipboard/DataObject.h"
#include "core/clipboard/DataTransfer.h"
#include "core/frame/LocalFrame.h"
#include "platform/DragImage.h"
#include "platform/geometry/IntSize.h"
#include "platform/graphics/skia/NativeImageSkia.h"
#include "public/platform/WebCommon.h"
#include "public/platform/WebDragData.h"
#include "public/platform/WebImage.h"
#include "public/platform/WebPoint.h"
#include "public/web/WebDragOperation.h"
#include "public/web/WebViewClient.h"
#include "web/WebViewImpl.h"
#include "wtf/Assertions.h"
#include "wtf/RefPtr.h"
namespace blink {
DragDestinationAction DragClientImpl::actionMaskForDrag(DragData*)
{
if (m_webView->client() && m_webView->client()->acceptsLoadDrops())
return DragDestinationActionAny;
return static_cast<DragDestinationAction>(
DragDestinationActionDHTML | DragDestinationActionEdit);
}
void DragClientImpl::startDrag(DragImage* dragImage, const IntPoint& dragImageOrigin, const IntPoint& eventPos, DataTransfer* dataTransfer, LocalFrame* frame, bool isLinkDrag)
{
// Add a ref to the frame just in case a load occurs mid-drag.
RefPtrWillBeRawPtr<LocalFrame> frameProtector(frame);
WebDragData dragData(dataTransfer->dataObject());
WebDragOperationsMask dragOperationMask = static_cast<WebDragOperationsMask>(dataTransfer->sourceOperation());
WebImage image;
IntSize offsetSize(eventPos - dragImageOrigin);
WebPoint offsetPoint(offsetSize.width(), offsetSize.height());
if (dragImage) {
float resolutionScale = dragImage->resolutionScale();
if (m_webView->deviceScaleFactor() != resolutionScale) {
ASSERT(resolutionScale > 0);
float scale = m_webView->deviceScaleFactor() / resolutionScale;
dragImage->scale(scale, scale);
}
image = dragImage->bitmap();
}
m_webView->startDragging(frame, dragData, dragOperationMask, image, offsetPoint);
}
} // namespace blink
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