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/*
* Copyright (C) 2014 Igalia S.L.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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.
*/
#ifndef DragAndDropHandler_h
#define DragAndDropHandler_h
#if ENABLE(DRAG_SUPPORT)
#include <WebCore/DataObjectGtk.h>
#include <WebCore/DragIcon.h>
#include <wtf/HashMap.h>
#include <wtf/Noncopyable.h>
typedef struct _GdkDragContext GdkDragContext;
typedef struct _GtkSelectionData GtkSelectionData;
namespace WebCore {
class DragData;
class IntPoint;
}
namespace WebKit {
class ShareableBitmap;
class WebPageProxy;
class DragAndDropHandler {
WTF_MAKE_NONCOPYABLE(DragAndDropHandler);
public:
DragAndDropHandler(WebPageProxy&);
void startDrag(const WebCore::DragData&, PassRefPtr<ShareableBitmap> dragImage);
void fillDragData(GdkDragContext*, GtkSelectionData*, unsigned info);
void finishDrag(GdkDragContext*);
void dragEntered(GdkDragContext*, GtkSelectionData*, unsigned info, unsigned time);
void dragMotion(GdkDragContext*, const WebCore::IntPoint& position, unsigned time);
void dragLeave(GdkDragContext*);
bool drop(GdkDragContext*, const WebCore::IntPoint& position, unsigned time);
private:
struct DroppingContext {
DroppingContext(GdkDragContext*, const WebCore::IntPoint& position);
GdkDragContext* gdkContext;
RefPtr<WebCore::DataObjectGtk> dataObject;
WebCore::IntPoint lastMotionPosition;
unsigned pendingDataRequests;
bool dropHappened;
};
WebCore::DataObjectGtk* dataObjectForDropData(GdkDragContext*, GtkSelectionData*, unsigned info, WebCore::IntPoint& position);
WebCore::DataObjectGtk* requestDragData(GdkDragContext*, const WebCore::IntPoint& position, unsigned time);
WebPageProxy& m_page;
WebCore::DragIcon m_dragIcon;
HashMap<GdkDragContext*, std::unique_ptr<DroppingContext>> m_droppingContexts;
HashMap<GdkDragContext*, RefPtr<WebCore::DataObjectGtk>> m_draggingDataObjects;
};
} // namespace WebKit
#endif // ENABLE(DRAG_SUPPORT)
#endif // DragAndDropHandler_h
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