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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef nsDragService_h__
#define nsDragService_h__
#include "nsBaseDragService.h"
#include <windows.h>
#include <shlobj.h>
struct IDataObject;
class nsDataObjCollection;
/**
* Native Win32 DragService wrapper
*/
class nsDragService : public nsBaseDragService
{
public:
nsDragService();
virtual ~nsDragService();
// nsBaseDragService
virtual nsresult InvokeDragSessionImpl(nsIArray* anArrayTransferables,
nsIScriptableRegion* aRegion,
uint32_t aActionType);
// nsIDragSession
NS_IMETHOD GetData(nsITransferable * aTransferable, uint32_t anItem);
NS_IMETHOD GetNumDropItems(uint32_t * aNumItems);
NS_IMETHOD IsDataFlavorSupported(const char *aDataFlavor, bool *_retval);
NS_IMETHOD EndDragSession(bool aDoneDrag);
// native impl.
NS_IMETHOD SetIDataObject(IDataObject * aDataObj);
NS_IMETHOD StartInvokingDragSession(IDataObject * aDataObj,
uint32_t aActionType);
// A drop occurred within the application vs. outside of it.
void SetDroppedLocal();
protected:
nsDataObjCollection* GetDataObjCollection(IDataObject * aDataObj);
// determine if we have a single data object or one of our private
// collections
bool IsCollectionObject(IDataObject* inDataObj);
// Create a bitmap for drag operations
bool CreateDragImage(nsIDOMNode *aDOMNode,
nsIScriptableRegion *aRegion,
SHDRAGIMAGE *psdi);
IDataObject * mDataObject;
bool mSentLocalDropEvent;
};
#endif // nsDragService_h__
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