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Diffstat (limited to 'starmath/source/viewhdl.cxx')
| -rw-r--r-- | starmath/source/viewhdl.cxx | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/starmath/source/viewhdl.cxx b/starmath/source/viewhdl.cxx new file mode 100644 index 000000000000..b99b2f320cf9 --- /dev/null +++ b/starmath/source/viewhdl.cxx @@ -0,0 +1,170 @@ +/************************************************************************* + * + * 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(); + } +} + + + |