264 lines
9.9 KiB
C++
264 lines
9.9 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include "doceventnotifier.hxx"
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#include "scriptdocument.hxx"
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#include <com/sun/star/document/XEventBroadcaster.hpp>
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#include <vcl/svapp.hxx>
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#include <tools/diagnose_ex.h>
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#include <comphelper/processfactory.hxx>
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#include <osl/mutex.hxx>
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#include <sal/macros.h>
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#include <cppuhelper/compbase1.hxx>
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#include <cppuhelper/basemutex.hxx>
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//........................................................................
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namespace basctl
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{
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//........................................................................
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/** === begin UNO using === **/
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using ::com::sun::star::document::XEventBroadcaster;
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using ::com::sun::star::document::XEventListener;
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using ::com::sun::star::document::EventObject;
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using ::com::sun::star::uno::RuntimeException;
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using ::com::sun::star::uno::Reference;
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using ::com::sun::star::uno::UNO_QUERY_THROW;
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using ::com::sun::star::uno::Exception;
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using ::com::sun::star::frame::XModel;
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using ::com::sun::star::uno::UNO_QUERY;
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/** === end UNO using === **/
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namespace csslang = ::com::sun::star::lang;
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//====================================================================
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//= DocumentEventNotifier::Impl
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//====================================================================
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typedef ::cppu::WeakComponentImplHelper1 < XEventListener
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> DocumentEventNotifier_Impl_Base;
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enum ListenerAction
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{
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RegisterListener,
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RemoveListener
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};
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/** impl class for DocumentEventNotifier
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*/
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class DocumentEventNotifier::Impl :public ::boost::noncopyable
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,public ::cppu::BaseMutex
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,public DocumentEventNotifier_Impl_Base
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{
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public:
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Impl (DocumentEventListener&, Reference<XModel> const& rxDocument);
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~Impl ();
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// document::XEventListener
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virtual void SAL_CALL notifyEvent( const EventObject& Event ) throw (RuntimeException);
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// lang::XEventListener
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virtual void SAL_CALL disposing( const csslang::EventObject& Event ) throw (RuntimeException);
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// ComponentHelper
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virtual void SAL_CALL disposing();
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private:
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/// determines whether the instance is already disposed
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bool impl_isDisposed_nothrow() const { return m_pListener == NULL; }
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/// disposes the instance
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void impl_dispose_nothrow();
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/// registers or revokes the instance as listener at the global event broadcaster
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void impl_listenerAction_nothrow( ListenerAction _eAction );
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private:
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DocumentEventListener* m_pListener;
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Reference< XModel > m_xModel;
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};
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//--------------------------------------------------------------------
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DocumentEventNotifier::Impl::Impl (DocumentEventListener& rListener, Reference<XModel> const& rxDocument) :
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DocumentEventNotifier_Impl_Base(m_aMutex),
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m_pListener(&rListener),
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m_xModel(rxDocument)
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{
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osl_incrementInterlockedCount( &m_refCount );
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impl_listenerAction_nothrow( RegisterListener );
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osl_decrementInterlockedCount( &m_refCount );
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}
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//--------------------------------------------------------------------
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DocumentEventNotifier::Impl::~Impl ()
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{
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if ( !impl_isDisposed_nothrow() )
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{
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acquire();
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dispose();
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}
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}
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//--------------------------------------------------------------------
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void SAL_CALL DocumentEventNotifier::Impl::notifyEvent( const EventObject& _rEvent ) throw (RuntimeException)
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{
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::osl::ClearableMutexGuard aGuard( m_aMutex );
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OSL_PRECOND( !impl_isDisposed_nothrow(), "DocumentEventNotifier::Impl::notifyEvent: disposed, but still getting events?" );
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if ( impl_isDisposed_nothrow() )
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return;
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Reference< XModel > xDocument( _rEvent.Source, UNO_QUERY );
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OSL_ENSURE( xDocument.is(), "DocumentEventNotifier::Impl::notifyEvent: illegal source document!" );
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if ( !xDocument.is() )
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return;
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struct EventEntry
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{
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const sal_Char* pEventName;
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void (DocumentEventListener::*listenerMethod)( const ScriptDocument& _rDocument );
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};
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EventEntry aEvents[] = {
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{ "OnNew", &DocumentEventListener::onDocumentCreated },
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{ "OnLoad", &DocumentEventListener::onDocumentOpened },
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{ "OnSave", &DocumentEventListener::onDocumentSave },
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{ "OnSaveDone", &DocumentEventListener::onDocumentSaveDone },
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{ "OnSaveAs", &DocumentEventListener::onDocumentSaveAs },
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{ "OnSaveAsDone", &DocumentEventListener::onDocumentSaveAsDone },
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{ "OnUnload", &DocumentEventListener::onDocumentClosed },
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{ "OnTitleChanged", &DocumentEventListener::onDocumentTitleChanged },
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{ "OnModeChanged", &DocumentEventListener::onDocumentModeChanged }
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};
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for ( size_t i=0; i < SAL_N_ELEMENTS( aEvents ); ++i )
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{
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if ( !_rEvent.EventName.equalsAscii( aEvents[i].pEventName ) )
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continue;
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ScriptDocument aDocument( xDocument );
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{
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// the listener implementations usually require the SolarMutex, so lock it here.
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// But ensure the proper order of locking the solar and the own mutex
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aGuard.clear();
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SolarMutexGuard aSolarGuard;
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::osl::MutexGuard aGuard2( m_aMutex );
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if ( impl_isDisposed_nothrow() )
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// somebody took the chance to dispose us -> bail out
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return;
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(m_pListener->*aEvents[i].listenerMethod)( aDocument );
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}
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break;
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}
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}
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//--------------------------------------------------------------------
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void SAL_CALL DocumentEventNotifier::Impl::disposing( const csslang::EventObject& /*Event*/ ) throw (RuntimeException)
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{
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SolarMutexGuard aSolarGuard;
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::osl::MutexGuard aGuard( m_aMutex );
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if ( !impl_isDisposed_nothrow() )
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impl_dispose_nothrow();
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}
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//--------------------------------------------------------------------
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void SAL_CALL DocumentEventNotifier::Impl::disposing()
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{
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impl_listenerAction_nothrow( RemoveListener );
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impl_dispose_nothrow();
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}
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//--------------------------------------------------------------------
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void DocumentEventNotifier::Impl::impl_dispose_nothrow()
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{
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m_pListener = NULL;
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m_xModel.clear();
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}
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//--------------------------------------------------------------------
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void DocumentEventNotifier::Impl::impl_listenerAction_nothrow( ListenerAction _eAction )
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{
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try
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{
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Reference< XEventBroadcaster > xBroadcaster;
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if ( m_xModel.is() )
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xBroadcaster.set( m_xModel, UNO_QUERY_THROW );
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else
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{
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Reference< com::sun::star::uno::XComponentContext > aContext(
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comphelper::getProcessComponentContext() );
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xBroadcaster.set(
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aContext->getServiceManager()->createInstanceWithContext(
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"com.sun.star.frame.GlobalEventBroadcaster", aContext ),
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UNO_QUERY_THROW );
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}
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void ( SAL_CALL XEventBroadcaster::*listenerAction )( const Reference< XEventListener >& ) =
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( _eAction == RegisterListener ) ? &XEventBroadcaster::addEventListener : &XEventBroadcaster::removeEventListener;
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(xBroadcaster.get()->*listenerAction)( this );
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}
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catch( const Exception& )
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{
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DBG_UNHANDLED_EXCEPTION();
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}
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}
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//====================================================================
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//= DocumentEventNotifier
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//====================================================================
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//--------------------------------------------------------------------
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DocumentEventNotifier::DocumentEventNotifier (DocumentEventListener& rListener, Reference<XModel> const& rxDocument) :
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m_pImpl(new Impl(rListener, rxDocument))
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{ }
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//--------------------------------------------------------------------
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DocumentEventNotifier::DocumentEventNotifier (DocumentEventListener& rListener) :
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m_pImpl(new Impl(rListener, Reference<XModel>()))
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{ }
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//--------------------------------------------------------------------
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DocumentEventNotifier::~DocumentEventNotifier()
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{
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}
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//--------------------------------------------------------------------
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void DocumentEventNotifier::dispose()
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{
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m_pImpl->dispose();
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}
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//====================================================================
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//= DocumentEventListener
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//====================================================================
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DocumentEventListener::~DocumentEventListener()
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{
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}
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//........................................................................
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} // namespace basctl
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//........................................................................
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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