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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2008 by Sun Microsystems, Inc.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: viewhdl.cxx,v $
* $Revision: 1.10 $
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_starmath.hxx"
#include <view.hxx>
#include <comphelper/processfactory.hxx>
#include <com/sun/star/lang/XMultiServiceFactory.hpp>
#include <com/sun/star/datatransfer/clipboard/XClipboardListener.hpp>
#include <com/sun/star/datatransfer/clipboard/XClipboardNotifier.hpp>
#include <vos/mutex.hxx>
#include <cppuhelper/implbase1.hxx>
#include <svtools/transfer.hxx>
#include <sfx2/bindings.hxx>
#include <sfx2/sfxsids.hrc>
using namespace ::com::sun::star;
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::datatransfer::clipboard;
// --------------------------- Clipboard EventListener ------------------
class SmClipboardChangeListener : public ::cppu::WeakImplHelper1<
::com::sun::star::datatransfer::clipboard::XClipboardListener >
{
SmViewShell* pView;
// XEventListener
virtual void SAL_CALL disposing(
const lang::EventObject& rEventObject ) throw ( ::com::sun::star::uno::RuntimeException)
;// throw( UNO_NMSPC::RuntimeException );
// XClipboardListener
virtual void SAL_CALL changedContents(
const datatransfer::clipboard::ClipboardEvent& rEventObject ) throw ( ::com::sun::star::uno::RuntimeException)
;// throw( UNO_NMSPC::RuntimeException );
public:
SmClipboardChangeListener( SmViewShell& rView ) : pView( &rView ) {}
virtual ~SmClipboardChangeListener();
void ViewDestroyed() { pView = 0; }
void AddRemoveListener( BOOL bAdd );
};
// ------------------------- SmClipboardChangeListener ---------------------
SmClipboardChangeListener::~SmClipboardChangeListener()
{
}
void SAL_CALL SmClipboardChangeListener::disposing(
const lang::EventObject& /*rEventObject*/ ) throw ( ::com::sun::star::uno::RuntimeException)
{
}
void SAL_CALL SmClipboardChangeListener::changedContents(
const ClipboardEvent& rEventObject ) throw ( ::com::sun::star::uno::RuntimeException)
{
const ::vos::OGuard aGuard( Application::GetSolarMutex() );
if( pView )
{
{
TransferableDataHelper aDataHelper( rEventObject.Contents );
sal_Bool bHasTransferable = aDataHelper.GetTransferable().is();
//! according to CD the above call to GetTransferable may create a (new)
//! message loop and thus result in re-entrant code.
//! Thus it was suggested to check 'pView' here again.
if (pView)
{
pView->bPasteState = bHasTransferable &&
( aDataHelper.HasFormat( FORMAT_STRING ) ||
aDataHelper.HasFormat( SOT_FORMATSTR_ID_EMBEDDED_OBJ ) ||
(aDataHelper.HasFormat( SOT_FORMATSTR_ID_OBJECTDESCRIPTOR )
&& aDataHelper.HasFormat( SOT_FORMATSTR_ID_EMBED_SOURCE )));
}
}
if (pView)
{
SfxBindings& rBind = pView->GetViewFrame()->GetBindings();
rBind.Invalidate( SID_PASTE );
}
}
}
void SmClipboardChangeListener::AddRemoveListener( BOOL bAdd )
{
try
{
do {
Window* pW;
Reference< XClipboard > xClipboard;
if( pView && 0 != ( pW = pView->GetEditWindow()) )
xClipboard = pW->GetClipboard();
if( !xClipboard.is() )
break;
Reference< XClipboardNotifier > xClpbrdNtfr( xClipboard, UNO_QUERY );
if( xClpbrdNtfr.is() )
{
Reference< XClipboardListener > xClipEvtLstnr( this );
if( bAdd )
xClpbrdNtfr->addClipboardListener( xClipEvtLstnr );
else
xClpbrdNtfr->removeClipboardListener( xClipEvtLstnr );
}
} while ( FALSE );
}
catch( const ::com::sun::star::uno::Exception& )
{
}
}
// ------------------------- SmViewShell ---------------------
void SmViewShell::AddRemoveClipboardListener( BOOL bAdd )
{
// AddRemoveListener and ViewDestroyed below should be an
// atomic operation and must not be 'interrupted' by other code
const ::vos::OGuard aGuard( Application::GetSolarMutex() );
if( bAdd && !xClipEvtLstnr.is() )
{
xClipEvtLstnr = pClipEvtLstnr = new SmClipboardChangeListener( *this );
pClipEvtLstnr->AddRemoveListener( TRUE );
}
else if( !bAdd && xClipEvtLstnr.is() )
{
pClipEvtLstnr->AddRemoveListener( FALSE );
pClipEvtLstnr->ViewDestroyed();
}
}
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