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lightning-sunbird  0.9+nobinonly
nsNativeDragSource.h
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00037 #ifndef _nsNativeDragSource_h_
00038 #define _nsNativeDragSource_h_
00039 
00040 #include <ole2.h>
00041 #include <oleidl.h>
00042 
00043 //class nsIDragSource;
00044 
00045 /*
00046  * nsNativeDragSource implements the IDropSource interface and gets
00047  * most of its behavior from the associated adapter (m_dragDrop).
00048  */
00049 class nsNativeDragSource : public IDropSource
00050 {
00051 public:
00052 
00053   // construct an nsNativeDragSource referencing adapter
00054   // nsNativeDragSource(nsIDragSource * adapter);
00055   nsNativeDragSource();
00056   ~nsNativeDragSource();
00057 
00058   // IUnknown methods - see iunknown.h for documentation
00059 
00060   STDMETHODIMP QueryInterface(REFIID, void**);
00061   STDMETHODIMP_(ULONG) AddRef();
00062   STDMETHODIMP_(ULONG) Release();
00063 
00064   // IDropSource methods - see idropsrc.h for documentation
00065 
00066   // Return DRAGDROP_S_USEDEFAULTCURSORS if this object lets OLE provide
00067   // default cursors, otherwise return NOERROR. This method gets called in
00068   // response to changes that the target makes to dEffect (DragEnter,
00069   // DragOver).
00070   STDMETHODIMP GiveFeedback(DWORD dEffect);
00071 
00072   // This method gets called if there is any change in the mouse or key
00073   // state.  Return DRAGDROP_S_CANCEL to stop the drag, DRAGDROP_S_DROP
00074   // to execute the drop, otherwise NOERROR.
00075   STDMETHODIMP QueryContinueDrag(BOOL fESC, DWORD grfKeyState);
00076 
00077 protected:
00078   ULONG        m_cRef;     // reference count
00079   //nsIDragSource *  mDragSource; // adapter
00080   //CfDragDrop *  mDragSource; // adapter
00081 
00082 };
00083 
00084 #endif // _nsNativeDragSource_h_
00085