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