xref: /aoo42x/main/dtrans/source/win32/dnd/source.hxx (revision 99e632bc)

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 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
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#ifndef _SOURCE_HXX_
#define _SOURCE_HXX_

#include <com/sun/star/datatransfer/dnd/XDragSource.hpp>
#include <com/sun/star/datatransfer/dnd/XDragSourceContext.hpp>
#include <com/sun/star/lang/XInitialization.hpp>
#ifndef _OSL_MUTEX_H_
#include <osl/mutex.hxx>
#endif
#ifndef _CPPUHELPER_COMPBASE2_HXX_
#include <cppuhelper/compbase3.hxx>
#endif
#include <com/sun/star/lang/XServiceInfo.hpp>
#include "../../inc/DtObjFactory.hxx"
#include "globals.hxx"
#include <oleidl.h>

#include <systools/win32/comtools.hxx>

using namespace ::com::sun::star::lang;
using namespace ::com::sun::star::uno;
using namespace cppu;
using namespace osl;
using namespace rtl;
using namespace ::com::sun::star::datatransfer;
using namespace ::com::sun::star::datatransfer::dnd;



class SourceContext;
// RIGHT MOUSE BUTTON drag and drop not supported currently.
// ALT modifier is considered to effect a user selection of effects
class DragSource:
	  public MutexDummy,
	  public WeakComponentImplHelper3<XDragSource, XInitialization, XServiceInfo>,
	  public IDropSource

{
	Reference<XMultiServiceFactory> m_serviceFactory;
	HWND m_hAppWindow;

	// The mouse button that set off the drag and drop operation
	short m_MouseButton;
	// Converts XTransferable objects to IDataObject objects.
	CDTransObjFactory m_aDataConverter;

	DragSource();
	DragSource(const DragSource&);
	DragSource &operator= ( const DragSource&);

	// First starting a new drag and drop thread if
	// the last one has finished
	void StartDragImpl(
		const DragGestureEvent& trigger,
		sal_Int8 sourceActions,
		sal_Int32 cursor,
		sal_Int32 image,
		const Reference<XTransferable >& trans,
		const Reference<XDragSourceListener >& listener);

public:
	long m_RunningDndOperationCount;

public:
	// only valid for one dnd operation
	// the thread ID of the thread which created the window
	DWORD m_threadIdWindow;
	// The context notifies the XDragSourceListener s
	Reference<XDragSourceContext>   m_currentContext;

	// the wrapper for the Transferable ( startDrag)
	IDataObjectPtr m_spDataObject;

	sal_Int8 m_sourceActions;

public:
	DragSource(const Reference<XMultiServiceFactory>& sf);
	virtual ~DragSource();

	// XInitialization
	virtual void SAL_CALL initialize( const Sequence< Any >& aArguments )
		throw(Exception, RuntimeException);


	// XDragSource
	virtual sal_Bool SAL_CALL isDragImageSupported(  ) throw(RuntimeException);
	virtual sal_Int32 SAL_CALL getDefaultCursor( sal_Int8 dragAction )
		throw( IllegalArgumentException, RuntimeException);
	virtual void SAL_CALL startDrag( const DragGestureEvent& trigger,
									 sal_Int8 sourceActions,
									 sal_Int32 cursor,
									 sal_Int32 image,
									 const Reference<XTransferable >& trans,
									 const Reference<XDragSourceListener >& listener )
				throw( RuntimeException);

	// XServiceInfo
	virtual OUString SAL_CALL getImplementationName(  ) throw (RuntimeException);
	virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) throw (RuntimeException);
	virtual Sequence< OUString > SAL_CALL getSupportedServiceNames(  ) throw (RuntimeException);



	virtual HRESULT STDMETHODCALLTYPE QueryInterface(
			/* [in] */ REFIID riid,
			/* [iid_is][out] */ void __RPC_FAR *__RPC_FAR *ppvObject);

	virtual ULONG STDMETHODCALLTYPE AddRef( );

	virtual ULONG STDMETHODCALLTYPE Release( );


	// IDropSource
	virtual HRESULT STDMETHODCALLTYPE QueryContinueDrag(
		/* [in] */ BOOL fEscapePressed,
		/* [in] */ DWORD grfKeyState);

	virtual HRESULT STDMETHODCALLTYPE GiveFeedback(
		/* [in] */ DWORD dwEffect);

};


#endif