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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 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 Clipboard_h
#define Clipboard_h
#include "CachedResourceHandle.h"
#include "ClipboardAccessPolicy.h"
#include "DragActions.h"
#include "DragImage.h"
#include "IntPoint.h"
#include "Node.h"
namespace WebCore {
class DataTransferItems;
class DragData;
class FileList;
class Frame;
// State available during IE's events for drag and drop and copy/paste
class Clipboard : public RefCounted<Clipboard> {
public:
// Whether this clipboard is serving a drag-drop or copy-paste request.
enum ClipboardType {
CopyAndPaste,
DragAndDrop,
};
static PassRefPtr<Clipboard> create(ClipboardAccessPolicy, DragData*, Frame*);
virtual ~Clipboard() { }
bool isForCopyAndPaste() const { return m_clipboardType == CopyAndPaste; }
bool isForDragAndDrop() const { return m_clipboardType == DragAndDrop; }
String dropEffect() const { return dropEffectIsUninitialized() ? "none" : m_dropEffect; }
void setDropEffect(const String&);
bool dropEffectIsUninitialized() const { return m_dropEffect == "uninitialized"; }
String effectAllowed() const { return m_effectAllowed; }
void setEffectAllowed(const String&);
virtual void clearData(const String& type) = 0;
virtual void clearAllData() = 0;
virtual String getData(const String& type, bool& success) const = 0;
virtual bool setData(const String& type, const String& data) = 0;
// extensions beyond IE's API
virtual HashSet<String> types() const = 0;
virtual PassRefPtr<FileList> files() const = 0;
IntPoint dragLocation() const { return m_dragLoc; }
CachedImage* dragImage() const { return m_dragImage.get(); }
virtual void setDragImage(CachedImage*, const IntPoint&) = 0;
Node* dragImageElement() const { return m_dragImageElement.get(); }
virtual void setDragImageElement(Node*, const IntPoint&) = 0;
virtual DragImageRef createDragImage(IntPoint& dragLocation) const = 0;
#if ENABLE(DRAG_SUPPORT)
virtual void declareAndWriteDragImage(Element*, const KURL&, const String& title, Frame*) = 0;
#endif
virtual void writeURL(const KURL&, const String&, Frame*) = 0;
virtual void writeRange(Range*, Frame*) = 0;
virtual void writePlainText(const String&) = 0;
virtual bool hasData() = 0;
void setAccessPolicy(ClipboardAccessPolicy);
ClipboardAccessPolicy policy() const { return m_policy; }
DragOperation sourceOperation() const;
DragOperation destinationOperation() const;
void setSourceOperation(DragOperation);
void setDestinationOperation(DragOperation);
void setDragHasStarted() { m_dragStarted = true; }
#if ENABLE(DATA_TRANSFER_ITEMS)
virtual PassRefPtr<DataTransferItems> items() = 0;
#endif
protected:
Clipboard(ClipboardAccessPolicy, ClipboardType);
bool dragStarted() const { return m_dragStarted; }
private:
ClipboardAccessPolicy m_policy;
String m_dropEffect;
String m_effectAllowed;
bool m_dragStarted;
ClipboardType m_clipboardType;
protected:
IntPoint m_dragLoc;
CachedResourceHandle<CachedImage> m_dragImage;
RefPtr<Node> m_dragImageElement;
};
} // namespace WebCore
#endif // Clipboard_h
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