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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
MOZ_CAN_RUN_SCRIPT virtual nsresult InvokeDragSessionImpl(
nsIArray* anArrayTransferables,
const mozilla::Maybe<mozilla::CSSIntRegion>& aRegion,
uint32_t aActionType);
// nsIDragSession
NS_IMETHOD GetData(nsITransferable* aTransferable, uint32_t anItem) override;
NS_IMETHOD GetNumDropItems(uint32_t* aNumItems) override;
NS_IMETHOD IsDataFlavorSupported(const char* aDataFlavor,
bool* _retval) override;
MOZ_CAN_RUN_SCRIPT NS_IMETHOD EndDragSession(bool aDoneDrag,
uint32_t aKeyModifiers) override;
NS_IMETHOD UpdateDragImage(nsINode* aImage, int32_t aImageX,
int32_t aImageY) override;
// native impl.
NS_IMETHOD SetIDataObject(IDataObject* aDataObj);
MOZ_CAN_RUN_SCRIPT nsresult StartInvokingDragSession(IDataObject* aDataObj,
uint32_t aActionType);
// A drop occurred within the application vs. outside of it.
void SetDroppedLocal();
IDataObject* GetDataObject() { return mDataObject; }
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(nsINode* aDOMNode,
const mozilla::Maybe<mozilla::CSSIntRegion>& aRegion,
SHDRAGIMAGE* psdi);
IDataObject* mDataObject;
bool mSentLocalDropEvent;
};
#endif // nsDragService_h__