widget/src/qt/nsDragService.h
author mats.palmgren@bredband.net
Thu, 17 May 2007 20:49:14 -0700
changeset 1585 633138510b5ae5e25a3bfe66d2db572dc361d448
parent 482 1b0e34df9fa8707a0eb305120307fa4306f6184d
permissions -rw-r--r--
Move nsIDocShellTreeItem::childOffset to nsDocShell and remove all uses except internally by nsDocShell (it should be removed eventually). b=376562 r=Olli.Pettay sr=bzbarsky

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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#ifndef nsDragService_h__
#define nsDragService_h__

#include "nsBaseDragService.h"
#include "nsClipboard.h"
#include "nsIDragSessionQt.h"

#include <qwidget.h> 
#include <qdragobject.h> 

//----------------------------------------------------------
/* Native Qt DragService wrapper */
class nsDragService : public nsBaseDragService, public nsIDragSessionQt
{
public:
  nsDragService();
  virtual ~nsDragService();

  //nsISupports
  NS_DECL_ISUPPORTS_INHERITED
  
    //nsIDragService
  NS_IMETHOD InvokeDragSession(nsIDOMNode *aDOMNode,
                               nsISupportsArray *anArrayTransferables,
                               nsIScriptableRegion *aRegion,
                               PRUint32 aActionType);
  NS_IMETHOD StartDragSession();
  NS_IMETHOD EndDragSession(PRBool aDragDone);

  // nsIDragSession
  NS_IMETHOD SetCanDrop(PRBool aCanDrop);
  NS_IMETHOD GetCanDrop(PRBool *aCanDrop);
  NS_IMETHOD GetNumDropItems(PRUint32 *aNumItems);
  NS_IMETHOD GetData(nsITransferable *aTransferable,PRUint32 aItemIndex);
  NS_IMETHOD IsDataFlavorSupported(const char *aDataFlavor,PRBool *_retval);

  // nsIDragSessionQt
  NS_IMETHOD SetDragReference(QMimeSource* aDragRef); 

protected:
  QDragObject *RegisterDragFlavors(nsITransferable* transferable);

private:
  // the source of our drags
  QWidget     *mHiddenWidget;
  QDragObject *mDragObject;

  // our source data items
  nsCOMPtr<nsISupportsArray> mSourceDataItems;
};

#endif // nsDragService_h__