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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 "sal/config.h"
#include <boost/scoped_ptr.hpp>
#include <cppuhelper/basemutex.hxx>
#include <cppuhelper/compbase1.hxx>
#include <tools/debug.hxx>
#include <vcl/svapp.hxx>
#include <svdata.hxx>
#include <salinst.hxx>
#include <salsession.hxx>
#include <com/sun/star/frame/XSessionManagerClient.hpp>
#include <com/sun/star/lang/XMultiServiceFactory.hpp>
#include <com/sun/star/frame/XSessionManagerListener2.hpp>
#include <list>
using namespace com::sun::star::uno;
using namespace com::sun::star::lang;
using namespace com::sun::star::frame;
SalSession::~SalSession()
{
}
class VCLSession:
private cppu::BaseMutex,
public cppu::WeakComponentImplHelper1 < XSessionManagerClient >
{
struct Listener
{
css::uno::Reference< XSessionManagerListener > m_xListener;
bool m_bInteractionRequested;
bool m_bInteractionDone;
bool m_bSaveDone;
Listener( const css::uno::Reference< XSessionManagerListener >& xListener )
: m_xListener( xListener ),
m_bInteractionRequested( false ),
m_bInteractionDone( false ),
m_bSaveDone( false )
{}
};
std::list< Listener > m_aListeners;
boost::scoped_ptr< SalSession > m_pSession;
bool m_bInteractionRequested;
bool m_bInteractionGranted;
bool m_bInteractionDone;
bool m_bSaveDone;
static void SalSessionEventProc( void* pData, SalSessionEvent* pEvent );
virtual ~VCLSession() {}
virtual void SAL_CALL addSessionManagerListener( const css::uno::Reference< XSessionManagerListener >& xListener ) throw( RuntimeException, std::exception );
virtual void SAL_CALL removeSessionManagerListener( const css::uno::Reference< XSessionManagerListener>& xListener ) throw( RuntimeException, std::exception );
virtual void SAL_CALL queryInteraction( const css::uno::Reference< XSessionManagerListener >& xListener ) throw( RuntimeException, std::exception );
virtual void SAL_CALL interactionDone( const css::uno::Reference< XSessionManagerListener >& xListener ) throw( RuntimeException, std::exception );
virtual void SAL_CALL saveDone( const css::uno::Reference< XSessionManagerListener >& xListener ) throw( RuntimeException, std::exception );
virtual sal_Bool SAL_CALL cancelShutdown() throw( RuntimeException, std::exception );
void callSaveRequested( bool bShutdown, bool bCancelable );
void callShutdownCancelled();
void callInteractionGranted( bool bGranted );
void callQuit();
public:
VCLSession();
};
VCLSession::VCLSession()
: cppu::WeakComponentImplHelper1< XSessionManagerClient >( m_aMutex ),
m_pSession( ImplGetSVData()->mpDefInst->CreateSalSession() ),
m_bInteractionRequested( false ),
m_bInteractionGranted( false ),
m_bInteractionDone( false ),
m_bSaveDone( false )
{
if( m_pSession )
m_pSession->SetCallback( SalSessionEventProc, this );
}
void VCLSession::callSaveRequested( bool bShutdown, bool bCancelable )
{
std::list< Listener > aListeners;
{
osl::MutexGuard aGuard( m_aMutex );
// reset listener states
for( std::list< Listener >::iterator it = m_aListeners.begin();
it != m_aListeners.end(); ++it )
{
it->m_bSaveDone = it->m_bInteractionRequested = it->m_bInteractionDone = false;
}
// copy listener list since calling a listener may remove it.
aListeners = m_aListeners;
// set back interaction state
m_bSaveDone = false;
m_bInteractionDone = false;
// without session we assume UI is always possible,
// so it was reqeusted and granted
m_bInteractionRequested = m_bInteractionGranted = !m_pSession;
// answer the session manager even if no listeners available anymore
DBG_ASSERT( ! aListeners.empty(), "saveRequested but no listeners !" );
if( aListeners.empty() )
{
if( m_pSession )
m_pSession->saveDone();
return;
}
}
sal_uLong nAcquireCount = Application::ReleaseSolarMutex();
for( std::list< Listener >::const_iterator it = aListeners.begin(); it != aListeners.end(); ++it )
it->m_xListener->doSave( bShutdown, bCancelable );
Application::AcquireSolarMutex( nAcquireCount );
}
void VCLSession::callInteractionGranted( bool bInteractionGranted )
{
std::list< Listener > aListeners;
{
osl::MutexGuard aGuard( m_aMutex );
// copy listener list since calling a listener may remove it.
for( std::list< Listener >::const_iterator it = m_aListeners.begin(); it != m_aListeners.end(); ++it )
if( it->m_bInteractionRequested )
aListeners.push_back( *it );
m_bInteractionGranted = bInteractionGranted;
// answer the session manager even if no listeners available anymore
DBG_ASSERT( ! aListeners.empty(), "interactionGranted but no listeners !" );
if( aListeners.empty() )
{
if( m_pSession )
m_pSession->interactionDone();
return;
}
}
sal_uLong nAcquireCount = Application::ReleaseSolarMutex();
for( std::list< Listener >::const_iterator it = aListeners.begin(); it != aListeners.end(); ++it )
it->m_xListener->approveInteraction( bInteractionGranted );
Application::AcquireSolarMutex( nAcquireCount );
}
void VCLSession::callShutdownCancelled()
{
std::list< Listener > aListeners;
{
osl::MutexGuard aGuard( m_aMutex );
// copy listener list since calling a listener may remove it.
aListeners = m_aListeners;
// set back interaction state
m_bInteractionRequested = m_bInteractionDone = m_bInteractionGranted = false;
}
sal_uLong nAcquireCount = Application::ReleaseSolarMutex();
for( std::list< Listener >::const_iterator it = aListeners.begin(); it != aListeners.end(); ++it )
it->m_xListener->shutdownCanceled();
Application::AcquireSolarMutex( nAcquireCount );
}
void VCLSession::callQuit()
{
std::list< Listener > aListeners;
{
osl::MutexGuard aGuard( m_aMutex );
// copy listener list since calling a listener may remove it.
aListeners = m_aListeners;
// set back interaction state
m_bInteractionRequested = m_bInteractionDone = m_bInteractionGranted = false;
}
sal_uLong nAcquireCount = Application::ReleaseSolarMutex();
for( std::list< Listener >::const_iterator it = aListeners.begin(); it != aListeners.end(); ++it )
{
css::uno::Reference< XSessionManagerListener2 > xListener2( it->m_xListener, UNO_QUERY );
if( xListener2.is() )
xListener2->doQuit();
}
Application::AcquireSolarMutex( nAcquireCount );
}
void VCLSession::SalSessionEventProc( void* pData, SalSessionEvent* pEvent )
{
VCLSession * pThis = static_cast< VCLSession * >( pData );
switch( pEvent->m_eType )
{
case Interaction:
{
SalSessionInteractionEvent* pIEv = static_cast<SalSessionInteractionEvent*>(pEvent);
pThis->callInteractionGranted( pIEv->m_bInteractionGranted );
}
break;
case SaveRequest:
{
SalSessionSaveRequestEvent* pSEv = static_cast<SalSessionSaveRequestEvent*>(pEvent);
pThis->callSaveRequested( pSEv->m_bShutdown, pSEv->m_bCancelable );
}
break;
case ShutdownCancel:
pThis->callShutdownCancelled();
break;
case Quit:
pThis->callQuit();
break;
}
}
void SAL_CALL VCLSession::addSessionManagerListener( const css::uno::Reference<XSessionManagerListener>& xListener ) throw( RuntimeException, std::exception )
{
osl::MutexGuard aGuard( m_aMutex );
m_aListeners.push_back( Listener( xListener ) );
}
void SAL_CALL VCLSession::removeSessionManagerListener( const css::uno::Reference<XSessionManagerListener>& xListener ) throw( RuntimeException, std::exception )
{
osl::MutexGuard aGuard( m_aMutex );
std::list< Listener >::iterator it = m_aListeners.begin();
while( it != m_aListeners.end() )
{
if( it->m_xListener == xListener )
{
it = m_aListeners.erase(it);
}
else
++it;
}
}
void SAL_CALL VCLSession::queryInteraction( const css::uno::Reference<XSessionManagerListener>& xListener ) throw( RuntimeException, std::exception )
{
if( m_bInteractionGranted )
{
if( m_bInteractionDone )
xListener->approveInteraction( false );
else
xListener->approveInteraction( true );
return;
}
osl::MutexGuard aGuard( m_aMutex );
if( ! m_bInteractionRequested )
{
m_pSession->queryInteraction();
m_bInteractionRequested = true;
}
for( std::list< Listener >::iterator it = m_aListeners.begin(); it != m_aListeners.end(); ++it )
{
if( it->m_xListener == xListener )
{
it->m_bInteractionRequested = true;
it->m_bInteractionDone = false;
}
}
}
void SAL_CALL VCLSession::interactionDone( const css::uno::Reference< XSessionManagerListener >& xListener ) throw( RuntimeException, std::exception )
{
osl::MutexGuard aGuard( m_aMutex );
int nRequested = 0, nDone = 0;
for( std::list< Listener >::iterator it = m_aListeners.begin(); it != m_aListeners.end(); ++it )
{
if( it->m_bInteractionRequested )
{
nRequested++;
if( xListener == it->m_xListener )
it->m_bInteractionDone = true;
}
if( it->m_bInteractionDone )
nDone++;
}
if( nDone == nRequested && nDone > 0 )
{
m_bInteractionDone = true;
if( m_pSession )
m_pSession->interactionDone();
}
}
void SAL_CALL VCLSession::saveDone( const css::uno::Reference< XSessionManagerListener >& xListener ) throw( RuntimeException, std::exception )
{
osl::MutexGuard aGuard( m_aMutex );
bool bSaveDone = true;
for( std::list< Listener >::iterator it = m_aListeners.begin();
it != m_aListeners.end(); ++it )
{
if( it->m_xListener == xListener )
it->m_bSaveDone = true;
if( ! it->m_bSaveDone )
bSaveDone = false;
}
if( bSaveDone )
{
m_bSaveDone = true;
if( m_pSession )
m_pSession->saveDone();
}
}
sal_Bool SAL_CALL VCLSession::cancelShutdown() throw( RuntimeException, std::exception )
{
return m_pSession && m_pSession->cancelShutdown();
}
// service implementation
OUString SAL_CALL vcl_session_getImplementationName()
{
return OUString( "com.sun.star.frame.VCLSessionManagerClient" );
}
Sequence< OUString > SAL_CALL vcl_session_getSupportedServiceNames()
{
Sequence< OUString > aRet(1);
aRet[0] = "com.sun.star.frame.SessionManagerClient";
return aRet;
}
css::uno::Reference< XInterface > SAL_CALL vcl_session_createInstance( SAL_UNUSED_PARAMETER const css::uno::Reference< XMultiServiceFactory > & )
{
return static_cast< cppu::OWeakObject * >(new VCLSession);
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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