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Diffstat (limited to 'svx/source/form/formfeaturedispatcher.cxx')
| -rw-r--r-- | svx/source/form/formfeaturedispatcher.cxx | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/svx/source/form/formfeaturedispatcher.cxx b/svx/source/form/formfeaturedispatcher.cxx new file mode 100644 index 000000000..b90cd4c92 --- /dev/null +++ b/svx/source/form/formfeaturedispatcher.cxx @@ -0,0 +1,194 @@ +/* -*- 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( 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 ) + { + } + + + 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 = false; + _rState.State = aState.State; + } + + + void OSingleFeatureDispatcher::updateAllListeners() + { + ::osl::ClearableMutexGuard aGuard( m_rMutex ); + + FeatureStateEvent aUnoState; + getUnoState( aUnoState ); + + if ( ( m_aLastKnownState == aUnoState.State ) && ( m_bLastKnownEnabled == bool(aUnoState.IsEnabled) ) ) + return; + + m_aLastKnownState = aUnoState.State; + m_bLastKnownEnabled = aUnoState.IsEnabled; + + notifyStatus( nullptr, 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& ) + { + TOOLS_WARN_EXCEPTION( "svx", "OSingleFeatureDispatcher::notifyStatus" ); + } + } + else + { + ::comphelper::OInterfaceIteratorHelper3 aIter( m_aStatusListeners ); + _rFreeForNotification.clear(); + + while ( aIter.hasMoreElements() ) + { + try + { + aIter.next()->statusChanged( aUnoState ); + } + catch( const DisposedException& ) + { + TOOLS_WARN_EXCEPTION("svx.form", + "caught a DisposedException - removing the listener!"); + aIter.remove( ); + } + catch( const Exception& ) + { + TOOLS_WARN_EXCEPTION( + "svx.form", + "caught a generic exception while notifying a single listener!"); + } + } + } + } + + + void SAL_CALL OSingleFeatureDispatcher::dispatch( const URL& _rURL, const Sequence< PropertyValue >& _rArguments ) + { + ::osl::ClearableMutexGuard aGuard( m_rMutex ); + + OSL_ENSURE( _rURL.Complete == m_aFeatureURL.Complete, "OSingleFeatureDispatcher::dispatch: not responsible for this URL!" ); + + 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.hasElements() ) + { + 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("svx"); + } + } + + + void SAL_CALL OSingleFeatureDispatcher::addStatusListener( const Reference< XStatusListener >& _rxControl, const URL& _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 ); + + m_aStatusListeners.addInterface( _rxControl ); + + // initially update the status + notifyStatus( _rxControl, aGuard ); + } + + + void SAL_CALL OSingleFeatureDispatcher::removeStatusListener( const Reference< XStatusListener >& _rxControl, const URL& _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 ); + + m_aStatusListeners.removeInterface( _rxControl ); + } + + +} + + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |