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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: documenteventnotifier.cxx,v $
*
* $Revision: 1.1.2.4 $
*
* 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_dbaccess.hxx"
#include "documenteventnotifier.hxx"
/** === begin UNO includes === **/
#include <com/sun/star/frame/DoubleInitializationException.hpp>
/** === end UNO includes === **/
#include <comphelper/asyncnotification.hxx>
#include <cppuhelper/interfacecontainer.hxx>
#include <cppuhelper/weak.hxx>
#include <tools/diagnose_ex.h>
//........................................................................
namespace dbaccess
{
//........................................................................
/** === begin UNO using === **/
using ::com::sun::star::uno::Reference;
using ::com::sun::star::uno::XInterface;
using ::com::sun::star::uno::UNO_QUERY;
using ::com::sun::star::uno::UNO_QUERY_THROW;
using ::com::sun::star::uno::UNO_SET_THROW;
using ::com::sun::star::uno::Exception;
using ::com::sun::star::uno::RuntimeException;
using ::com::sun::star::uno::Any;
using ::com::sun::star::uno::makeAny;
using ::com::sun::star::uno::Sequence;
using ::com::sun::star::uno::Type;
using ::com::sun::star::frame::DoubleInitializationException;
using ::com::sun::star::document::XDocumentEventListener;
using ::com::sun::star::document::DocumentEvent;
using ::com::sun::star::frame::XController2;
/** === end UNO using === **/
using namespace ::com::sun::star;
//==================================================================
//= DocumentEventHolder
//==================================================================
typedef ::comphelper::EventHolder< DocumentEvent > DocumentEventHolder;
//====================================================================
//= DocumentEventNotifier_Impl
//====================================================================
class DocumentEventNotifier_Impl : public ::comphelper::IEventProcessor
{
oslInterlockedCount m_refCount;
::cppu::OWeakObject& m_rDocument;
::osl::Mutex& m_rMutex;
bool m_bInitialized;
bool m_bDisposed;
::rtl::Reference< ::comphelper::AsyncEventNotifier > m_pEventBroadcaster;
::cppu::OInterfaceContainerHelper m_aLegacyEventListeners;
::cppu::OInterfaceContainerHelper m_aDocumentEventListeners;
public:
DocumentEventNotifier_Impl( ::cppu::OWeakObject& _rBroadcasterDocument, ::osl::Mutex& _rMutex )
:m_refCount( 0 )
,m_rDocument( _rBroadcasterDocument )
,m_rMutex( _rMutex )
,m_bInitialized( false )
,m_bDisposed( false )
,m_aLegacyEventListeners( _rMutex )
,m_aDocumentEventListeners( _rMutex )
{
}
// IReference
virtual void SAL_CALL acquire();
virtual void SAL_CALL release();
void addLegacyEventListener( const Reference< document::XEventListener >& _Listener )
{
m_aLegacyEventListeners.addInterface( _Listener );
}
void removeLegacyEventListener( const Reference< document::XEventListener >& _Listener )
{
m_aLegacyEventListeners.removeInterface( _Listener );
}
void addDocumentEventListener( const Reference< XDocumentEventListener >& _Listener )
{
m_aDocumentEventListeners.addInterface( _Listener );
}
void removeDocumentEventListener( const Reference< XDocumentEventListener >& _Listener )
{
m_aDocumentEventListeners.removeInterface( _Listener );
}
void disposing();
void onDocumentInitialized();
void notifyDocumentEvent( const ::rtl::OUString& _EventName, const Reference< XController2 >& _ViewController,
const Any& _Supplement )
{
impl_notifyEvent_nothrow( DocumentEvent(
m_rDocument, _EventName, _ViewController, _Supplement ) );
}
void notifyDocumentEventAsync( const ::rtl::OUString& _EventName, const Reference< XController2 >& _ViewController,
const Any& _Supplement )
{
impl_notifyEventAsync_nothrow( DocumentEvent(
m_rDocument, _EventName, _ViewController, _Supplement ) );
}
protected:
virtual ~DocumentEventNotifier_Impl()
{
}
// IEventProcessor
virtual void processEvent( const ::comphelper::AnyEvent& _rEvent );
private:
void impl_notifyEvent_nothrow( const DocumentEvent& _rEvent );
void impl_notifyEventAsync_nothrow( const DocumentEvent& _rEvent );
};
//--------------------------------------------------------------------
void SAL_CALL DocumentEventNotifier_Impl::acquire()
{
osl_incrementInterlockedCount( &m_refCount );
}
//--------------------------------------------------------------------
void SAL_CALL DocumentEventNotifier_Impl::release()
{
if ( 0 == osl_decrementInterlockedCount( &m_refCount ) )
delete this;
}
//--------------------------------------------------------------------
void DocumentEventNotifier_Impl::disposing()
{
// SYNCHRONIZED ->
// cancel any pending asynchronous events
::osl::ResettableMutexGuard aGuard( m_rMutex );
if ( m_pEventBroadcaster.is() )
{
m_pEventBroadcaster->removeEventsForProcessor( this );
m_pEventBroadcaster->terminate();
m_pEventBroadcaster = NULL;
}
lang::EventObject aEvent( m_rDocument );
aGuard.clear();
// <-- SYNCHRONIZED
m_aLegacyEventListeners.disposeAndClear( aEvent );
m_aDocumentEventListeners.disposeAndClear( aEvent );
// SYNCHRONIZED ->
aGuard.reset();
m_bDisposed = true;
// <-- SYNCHRONIZED
}
//--------------------------------------------------------------------
void DocumentEventNotifier_Impl::onDocumentInitialized()
{
if ( m_bInitialized )
throw DoubleInitializationException();
m_bInitialized = true;
if ( m_pEventBroadcaster.is() )
// there are already pending asynchronous events
m_pEventBroadcaster->create();
}
//--------------------------------------------------------------------
void DocumentEventNotifier_Impl::impl_notifyEvent_nothrow( const DocumentEvent& _rEvent )
{
OSL_PRECOND( m_bInitialized,
"DocumentEventNotifier_Impl::impl_notifyEvent_nothrow: only to be called when the document is already initialized!" );
try
{
document::EventObject aLegacyEvent( _rEvent.Source, _rEvent.EventName );
m_aLegacyEventListeners.notifyEach( &document::XEventListener::notifyEvent, aLegacyEvent );
}
catch(const Exception&)
{
DBG_UNHANDLED_EXCEPTION();
}
try
{
m_aDocumentEventListeners.notifyEach( &XDocumentEventListener::documentEventOccured, _rEvent );
}
catch( const Exception& )
{
DBG_UNHANDLED_EXCEPTION();
}
}
//--------------------------------------------------------------------
void DocumentEventNotifier_Impl::impl_notifyEventAsync_nothrow( const DocumentEvent& _rEvent )
{
if ( !m_pEventBroadcaster.is() )
{
m_pEventBroadcaster.set( new ::comphelper::AsyncEventNotifier );
if ( m_bInitialized )
// start processing the events if and only if we (our document, respectively) are
// already initialized
m_pEventBroadcaster->create();
}
m_pEventBroadcaster->addEvent( new DocumentEventHolder( _rEvent ), this );
}
// -----------------------------------------------------------------------------
void DocumentEventNotifier_Impl::processEvent( const ::comphelper::AnyEvent& _rEvent )
{
// beware, this is called from the notification thread
{
::osl::MutexGuard aGuard( m_rMutex );
if ( m_bDisposed )
return;
}
const DocumentEventHolder& rEventHolder = dynamic_cast< const DocumentEventHolder& >( _rEvent );
impl_notifyEvent_nothrow( rEventHolder.getEventObject() );
}
//====================================================================
//= DocumentEventNotifier
//====================================================================
//--------------------------------------------------------------------
DocumentEventNotifier::DocumentEventNotifier( ::cppu::OWeakObject& _rBroadcasterDocument, ::osl::Mutex& _rMutex )
:m_pImpl( new DocumentEventNotifier_Impl( _rBroadcasterDocument, _rMutex ) )
{
}
//--------------------------------------------------------------------
DocumentEventNotifier::~DocumentEventNotifier()
{
}
//--------------------------------------------------------------------
void DocumentEventNotifier::disposing()
{
m_pImpl->disposing();
}
//--------------------------------------------------------------------
void DocumentEventNotifier::onDocumentInitialized()
{
m_pImpl->onDocumentInitialized();
}
//--------------------------------------------------------------------
void DocumentEventNotifier::addLegacyEventListener( const Reference< document::XEventListener >& _Listener )
{
m_pImpl->addLegacyEventListener( _Listener );
}
//--------------------------------------------------------------------
void DocumentEventNotifier::removeLegacyEventListener( const Reference< document::XEventListener >& _Listener )
{
m_pImpl->removeLegacyEventListener( _Listener );
}
//--------------------------------------------------------------------
void DocumentEventNotifier::addDocumentEventListener( const Reference< XDocumentEventListener >& _Listener )
{
m_pImpl->addDocumentEventListener( _Listener );
}
//--------------------------------------------------------------------
void DocumentEventNotifier::removeDocumentEventListener( const Reference< XDocumentEventListener >& _Listener )
{
m_pImpl->removeDocumentEventListener( _Listener );
}
//--------------------------------------------------------------------
void DocumentEventNotifier::notifyDocumentEvent( const ::rtl::OUString& _EventName,
const Reference< XController2 >& _ViewController, const Any& _Supplement )
{
m_pImpl->notifyDocumentEvent( _EventName, _ViewController, _Supplement );
}
//--------------------------------------------------------------------
void DocumentEventNotifier::notifyDocumentEventAsync( const ::rtl::OUString& _EventName,
const Reference< XController2 >& _ViewController, const Any& _Supplement )
{
m_pImpl->notifyDocumentEventAsync( _EventName, _ViewController, _Supplement );
}
//........................................................................
} // namespace dbaccess
//........................................................................
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