/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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 * The Original Code is mozilla.org code.
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#ifndef _nsNativeDragSource_h_
#define _nsNativeDragSource_h_

#include <OLE2.h>
#include <OLEIDL.h>

//class nsIDragSource;

/*
 * nsNativeDragSource implements the IDropSource interface and gets most of its
 * behavior from the associated adapter (m_dragDrop).
 */
class nsNativeDragSource : public IDropSource
{
	public: // construction, destruction

		// construct an nsNativeDragSource referencing adapter
		//nsNativeDragSource(nsIDragSource * adapter);
		nsNativeDragSource();
		~nsNativeDragSource();

	public: // IUnknown methods - see iunknown.h for documentation

		STDMETHODIMP         QueryInterface(REFIID, void**);
		STDMETHODIMP_(ULONG) AddRef        ();
		STDMETHODIMP_(ULONG) Release       ();

	public: // IDropSource methods

		// Return DRAGDROP_S_USEDEFAULTCURSORS if this object lets OLE provide
		// default cursors, otherwise return NOERROR. This method gets called in
		// response to changes that the target makes to dEffect (DragEnter,
		// DragOver).
		STDMETHODIMP GiveFeedback (DWORD dEffect);

		// If fESC is TRUE return DRAGDROP_S_CANCEL. If the left mouse button
		// is released return DRAGDROP_S_DROP. Otherwise return NOERROR. This
      // method gets called if there is any change in the mouse or key state.
		STDMETHODIMP QueryContinueDrag (BOOL fESC, DWORD grfKeyState);

	protected:
		ULONG        m_cRef;     // reference count
		//nsIDragSource *  mDragSource; // adapter
		//CfDragDrop *  mDragSource; // adapter

};

#endif // _nsNativeDragSource_h_