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/*
* Copyright (C) 2001 Peter Kelly (pmk@post.com)
* Copyright (C) 2001 Tobias Anton (anton@stud.fbi.fh-darmstadt.de)
* Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
* Copyright (C) 2003, 2004, 2005, 2006, 2008, 2013 Apple Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#ifndef DataTransfer_h
#define DataTransfer_h
#include "CachedResourceHandle.h"
#include "DataTransferAccessPolicy.h"
#include "DragActions.h"
#include "DragImage.h"
#include "IntPoint.h"
#include <wtf/RefCounted.h>
#include <wtf/text/WTFString.h>
namespace WebCore {
class CachedImage;
class DataTransferItemList;
class DragData;
class DragImageLoader;
class Element;
class FileList;
class Pasteboard;
class DataTransfer : public RefCounted<DataTransfer> {
public:
static Ref<DataTransfer> createForCopyAndPaste(DataTransferAccessPolicy);
WEBCORE_EXPORT ~DataTransfer();
String dropEffect() const;
void setDropEffect(const String&);
String effectAllowed() const;
void setEffectAllowed(const String&);
Vector<String> types() const;
FileList& files() const;
void clearData(const String& type);
void clearData();
String getData(const String& type) const;
void setData(const String& type, const String& data);
void setDragImage(Element*, int x, int y);
#if ENABLE(DATA_TRANSFER_ITEMS)
PassRefPtr<DataTransferItemList> items() = 0;
#endif
void setAccessPolicy(DataTransferAccessPolicy);
bool canReadTypes() const;
bool canReadData() const;
bool canWriteData() const;
bool hasFileOfType(const String&);
bool hasStringOfType(const String&);
Pasteboard& pasteboard() { return *m_pasteboard; }
#if ENABLE(DRAG_SUPPORT)
static Ref<DataTransfer> createForDragAndDrop();
static Ref<DataTransfer> createForDragAndDrop(DataTransferAccessPolicy, const DragData&);
bool dropEffectIsUninitialized() const { return m_dropEffect == "uninitialized"; }
DragOperation sourceOperation() const;
DragOperation destinationOperation() const;
void setSourceOperation(DragOperation);
void setDestinationOperation(DragOperation);
void setDragHasStarted() { m_shouldUpdateDragImage = true; }
DragImageRef createDragImage(IntPoint& dragLocation) const;
void updateDragImage();
#endif
private:
enum Type { CopyAndPaste, DragAndDrop };
DataTransfer(DataTransferAccessPolicy, std::unique_ptr<Pasteboard>, Type = CopyAndPaste, bool forFileDrag = false);
#if ENABLE(DRAG_SUPPORT)
bool canSetDragImage() const;
#endif
DataTransferAccessPolicy m_policy;
std::unique_ptr<Pasteboard> m_pasteboard;
mutable RefPtr<FileList> m_fileList;
#if ENABLE(DRAG_SUPPORT)
bool m_forDrag;
bool m_forFileDrag;
String m_dropEffect;
String m_effectAllowed;
bool m_shouldUpdateDragImage;
IntPoint m_dragLocation;
CachedResourceHandle<CachedImage> m_dragImage;
RefPtr<Element> m_dragImageElement;
std::unique_ptr<DragImageLoader> m_dragImageLoader;
#endif
};
} // namespace WebCore
#endif // DataTransfer_h
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