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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 "formfeaturedispatcher.hxx"
#include <comphelper/namedvaluecollection.hxx>
#include <tools/diagnose_ex.h>
namespace svx
{
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::lang;
using namespace ::com::sun::star::frame;
using namespace ::com::sun::star::beans;
using namespace ::com::sun::star::util;
using namespace ::com::sun::star::form::runtime;
//= OSingleFeatureDispatcher
OSingleFeatureDispatcher::OSingleFeatureDispatcher( const URL& _rFeatureURL, const sal_Int16 _nFormFeature,
const Reference< XFormOperations >& _rxFormOperations, ::osl::Mutex& _rMutex )
:m_rMutex( _rMutex )
,m_aStatusListeners( _rMutex )
,m_xFormOperations( _rxFormOperations )
,m_aFeatureURL( _rFeatureURL )
,m_nFormFeature( _nFormFeature )
,m_bLastKnownEnabled( false )
,m_bDisposed( false )
{
}
void OSingleFeatureDispatcher::getUnoState( FeatureStateEvent& /* [out] */ _rState ) const
{
_rState.Source = *const_cast< OSingleFeatureDispatcher* >( this );
FeatureState aState( m_xFormOperations->getState( m_nFormFeature ) );
_rState.FeatureURL = m_aFeatureURL;
_rState.IsEnabled = aState.Enabled;
_rState.Requery = sal_False;
_rState.State = aState.State;
}
void OSingleFeatureDispatcher::updateAllListeners()
{
::osl::ClearableMutexGuard aGuard( m_rMutex );
FeatureStateEvent aUnoState;
getUnoState( aUnoState );
if ( ( m_aLastKnownState == aUnoState.State ) && ( (m_bLastKnownEnabled ? 1 : 0) == aUnoState.IsEnabled ) )
return;
m_aLastKnownState = aUnoState.State;
m_bLastKnownEnabled = aUnoState.IsEnabled;
notifyStatus( NULL, aGuard );
}
void OSingleFeatureDispatcher::notifyStatus( const Reference< XStatusListener >& _rxListener, ::osl::ClearableMutexGuard& _rFreeForNotification )
{
FeatureStateEvent aUnoState;
getUnoState( aUnoState );
if ( _rxListener.is() )
{
try
{
_rFreeForNotification.clear();
_rxListener->statusChanged( aUnoState );
}
catch( const Exception& )
{
OSL_FAIL( "OSingleFeatureDispatcher::notifyStatus: caught an exception!" );
}
}
else
{
::cppu::OInterfaceIteratorHelper aIter( m_aStatusListeners );
_rFreeForNotification.clear();
while ( aIter.hasMoreElements() )
{
try
{
static_cast< XStatusListener* >( aIter.next() )->statusChanged( aUnoState );
}
catch( const DisposedException& )
{
OSL_FAIL( "OSingleFeatureDispatcher::notifyStatus: caught a DisposedException - removing the listener!" );
aIter.remove( );
}
catch( const Exception& )
{
OSL_FAIL( "OSingleFeatureDispatcher::notifyStatus: caught a generic exception while notifying a single listener!" );
}
}
}
}
void SAL_CALL OSingleFeatureDispatcher::dispatch( const URL& _rURL, const Sequence< PropertyValue >& _rArguments ) throw (RuntimeException, std::exception)
{
::osl::ClearableMutexGuard aGuard( m_rMutex );
checkAlive();
OSL_ENSURE( _rURL.Complete == m_aFeatureURL.Complete, "OSingleFeatureDispatcher::dispatch: not responsible for this URL!" );
(void)_rURL;
if ( !m_xFormOperations->isEnabled( m_nFormFeature ) )
return;
// release our mutex before executing the command
sal_Int16 nFormFeature( m_nFormFeature );
Reference< XFormOperations > xFormOperations( m_xFormOperations );
aGuard.clear();
try
{
if ( !_rArguments.getLength() )
{
xFormOperations->execute( nFormFeature );
}
else
{ // at the moment we only support one parameter
::comphelper::NamedValueCollection aArgs( _rArguments );
xFormOperations->executeWithArguments( nFormFeature, aArgs.getNamedValues() );
}
}
catch( const RuntimeException& )
{
throw;
}
catch( const Exception& )
{
DBG_UNHANDLED_EXCEPTION();
}
}
void SAL_CALL OSingleFeatureDispatcher::addStatusListener( const Reference< XStatusListener >& _rxControl, const URL& _rURL ) throw (RuntimeException, std::exception)
{
(void)_rURL;
OSL_ENSURE( _rURL.Complete == m_aFeatureURL.Complete, "OSingleFeatureDispatcher::addStatusListener: unexpected URL!" );
OSL_ENSURE( _rxControl.is(), "OSingleFeatureDispatcher::addStatusListener: senseless call!" );
if ( !_rxControl.is() )
return;
::osl::ClearableMutexGuard aGuard( m_rMutex );
if ( m_bDisposed )
{
EventObject aDisposeEvent( *this );
aGuard.clear();
_rxControl->disposing( aDisposeEvent );
return;
}
m_aStatusListeners.addInterface( _rxControl );
// initially update the status
notifyStatus( _rxControl, aGuard );
}
void SAL_CALL OSingleFeatureDispatcher::removeStatusListener( const Reference< XStatusListener >& _rxControl, const URL& _rURL ) throw (RuntimeException, std::exception)
{
(void)_rURL;
OSL_ENSURE( _rURL.Complete == m_aFeatureURL.Complete, "OSingleFeatureDispatcher::removeStatusListener: unexpected URL!" );
OSL_ENSURE( _rxControl.is(), "OSingleFeatureDispatcher::removeStatusListener: senseless call!" );
if ( !_rxControl.is() )
return;
::osl::MutexGuard aGuard( m_rMutex );
checkAlive();
m_aStatusListeners.removeInterface( _rxControl );
}
void OSingleFeatureDispatcher::checkAlive() const SAL_THROW((DisposedException))
{
if ( m_bDisposed )
throw DisposedException( OUString(), *const_cast< OSingleFeatureDispatcher* >( this ) );
}
} // namespace svx
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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