xref: /trunk/main/dtrans/source/win32/dnd/source.hxx (revision 41e09fa92c50065ecf599158644193ba71ae5561)

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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
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
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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