// ============================================================================
//	CDragAndDrop.h	   ©1995 J. Rodden, DD/MF & Associates. All rights reserved
// ============================================================================
// CDragAndDrop picks up drag manager handling where LDragAndDrop leaves off.
// Everything necessary for a drag and droppable pane is encapsulated in this
// class. 
// ============================================================================

#pragma once

#include <CDragItem.h>

#include <LDragAndDrop.h>
#include <LView.h>

class LDragTask;

class	CDragAndDrop : public LDragAndDrop,
					   public CDragItem {

	friend class CDragTask;
	
public:
					CDragAndDrop(WindowPtr inMacWindow, LPane *inPane);
					
protected:
	Rect			mLocalFrame;
	FlavorType		mFlavorAccepted;
	Boolean			mUseDefaultRect;
	Boolean			mHighlightDrag;	// flag to highlight if dragged out and then back in

	virtual Boolean	ClickIsDragEvent(const SMouseDownEvent &inMouseDown, Rect* inRect = nil);
	virtual void	CreateDragEvent(const SMouseDownEvent &inMouseDown, Rect* inRect = nil);
	
	virtual void	SetLocalFrame();

	virtual Boolean	ItemIsAcceptable( DragReference inDragRef, ItemReference inItemRef);
	virtual Boolean	HFSItemIsAcceptable(HFSFlavor& inHFSFlavorData, Boolean& inTargetIsFolder);
	
	virtual void	LeaveDropArea (DragReference inDragRef);
	virtual void	InsideDropArea( DragReference inDragRef);
	virtual void	InsideDropArea( DragReference inDragRef, Point& theMouseLocation,
									Point& thePinnedLocation);
	
	virtual void	ReceiveDragItem( DragReference inDragRef, DragAttributes inDragAttrs,
									 ItemReference inItemRef, Rect& inItemBounds);
	
	virtual	void	ReceiveDragItem( DragReference inDragRef, ItemReference inItemRef,
							Boolean inCopyData, Boolean inFromFinder, Rect& inItemBounds);
	virtual void	CopyOrMoveDragData( void* inDragData, Size inDataSize, Boolean inCopyData,
							Boolean inFromFinder, Rect&	inItemBounds);
	
	virtual void	RemoveDragItem(const SMouseDownEvent &inMouseDown);
	
					// € Utility routines €
					
			Boolean	DroppedInTrash(LDragTask* inDragTask);
			Boolean	CheckForOptionKey( DragReference inDragRef);
			Boolean	CheckIfViewIsAlsoSender( DragReference inDragRef);
			void	FilterHFSDragItem(DragReference inDragRef, ItemReference inItemRef,
									   HFSFlavor& outHFSFlavorData, Boolean& outTargetIsFolder);
	virtual	Boolean	ReceiveHFSDragItem( DragReference inDragRef, ItemReference inItemRef,
										Boolean inCopyData, Boolean inFromFinder,
										Rect& inItemBounds, short inFolderAction);

};

// Flags for handling flavorTypeHFS folders

const short kDontAcceptFolder = 0x00;
const short kAcceptFolder	  = 0x01;
const short kOpenFolder		  = 0x02;
const short kRecurseDown	  = 0x04;