gecko-dev/widget/src/xpwidgets/nsBaseDragService.h

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#ifndef nsBaseDragService_h__
#define nsBaseDragService_h__

#include "nsIDragService.h"
#include "nsIDragSession.h"
#include "nsITransferable.h"
#include "nsISupportsArray.h"
#include "nsIDOMDocument.h"
#include "nsCOMPtr.h"

class nsIDOMNode;
class nsIFrame;
class nsIPresContext;


/**
 * XP DragService wrapper base class
 */

class nsBaseDragService : public nsIDragService, public nsIDragSession
{

public:
  nsBaseDragService();
  virtual ~nsBaseDragService();

  //nsISupports
  NS_DECL_ISUPPORTS
  
  //nsIDragSession and nsIDragService
  NS_DECL_NSIDRAGSERVICE
  NS_DECL_NSIDRAGSESSION

protected:

  virtual void GetFrameFromNode ( nsIDOMNode* inNode, nsIFrame** outFrame,
                                   nsIPresContext** outContext ) ;

  nsCOMPtr<nsISupportsArray> mTransArray;
  PRBool             mCanDrop;
  PRBool             mDoingDrag;
  nsSize             mTargetSize;
  PRUint32           mDragAction;  
  nsCOMPtr<nsIDOMNode> mSourceNode;
  nsCOMPtr<nsIDOMDocument> mSourceDocument;       // the document at the drag source. will be null
                                                  //  if it came from outside the app.
};

#endif // nsBaseDragService_h__