Quelle session.cxx
Sprache: C
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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* 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 <memory>
#include <sal/config.h>
#include <sal/log.hxx>
#include <comphelper/compbase.hxx>
#include <cppuhelper/supportsservice.hxx>
#include <comphelper/diagnose_ex.hxx>
#include <utility>
#include <vcl/svapp.hxx>
#include <factory.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/lang/XServiceInfo.hpp>
#include <com/sun/star/frame/XSessionManagerListener2.hpp>
#include <vector>
using namespace com::sun::star::uno;
using namespace com::sun::star::lang;
using namespace com::sun::star::frame;
SalSession::~SalSession()
{
}
namespace {
class VCLSession:
public comphelper::WeakComponentImplHelper < XSessionManagerClient, css::lang::XServi
ceInfo >
{
struct Listener
{
css::uno::Reference< XSessionManagerListener > m_xListener;
bool m_bInteractionRequested;
bool m_bInteractionDone;
bool m_bSaveDone;
explicit Listener( css::uno::Reference< XSessionManagerListener > xListener )
: m_xListener(std::move( xListener )),
m_bInteractionRequested( false ),
m_bInteractionDone( false ),
m_bSaveDone( false )
{}
};
std::vector< Listener > m_aListeners;
std::unique_ptr< SalSession > m_xSession;
bool m_bInteractionRequested;
bool m_bInteractionGranted;
bool m_bInteractionDone;
bool m_bSaveDone;
static void SalSessionEventProc( void * pData, SalSessionEvent* pEvent );
virtual ~VCLSession() override {}
virtual void SAL_CALL addSessionManagerListener( const css::uno::Reference< XSessionManagerListener >& xListener ) override;
virtual void SAL_CALL removeSessionManagerListener( const css::uno::Reference< XSessionManagerListener>& xListener ) override;
virtual void SAL_CALL queryInteraction( const css::uno::Reference< XSessionManagerListener >& xListener ) override;
virtual void SAL_CALL interactionDone( const css::uno::Reference< XSessionManagerListener >& xListener ) override;
virtual void SAL_CALL saveDone( const css::uno::Reference< XSessionManagerListener >& xListener ) override;
virtual sal_Bool SAL_CALL cancelShutdown() override;
OUString SAL_CALL getImplementationName() override {
return u"com.sun.star.frame.VCLSessionManagerClient" _ustr;
}
sal_Bool SAL_CALL supportsService(OUString const & ServiceName) override {
return cppu::supportsService(this , ServiceName);
}
css::uno::Sequence<OUString> SAL_CALL getSupportedServiceNames() override {
return {u"com.sun.star.frame.SessionManagerClient" _ustr};
}
void disposing(std::unique_lock<std::mutex>& rGuard) override;
void callSaveRequested( bool bShutdown );
void callShutdownCancelled();
void callInteractionGranted( bool bGranted );
void callQuit();
public :
VCLSession();
};
}
VCLSession::VCLSession()
: m_xSession( ImplGetSVData()->mpDefInst->CreateSalSession() ),
m_bInteractionRequested( false ),
m_bInteractionGranted( false ),
m_bInteractionDone( false ),
m_bSaveDone( false )
{
SAL_INFO("vcl.se" , "VCLSession::VCLSession" );
if (m_xSession)
m_xSession->SetCallback( SalSessionEventProc, this );
}
void VCLSession::callSaveRequested( bool bShutdown )
{
SAL_INFO("vcl.se" , "VCLSession::callSaveRequested" );
std::vector< Listener > aListeners;
{
std::unique_lock aGuard( m_aMutex );
// reset listener states
for (auto & listener : m_aListeners) {
listener.m_bSaveDone = listener.m_bInteractionRequested = listener.m_bInteractionDone = false ;
}
// copy listener vector 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 requested and granted
m_bInteractionRequested = m_bInteractionGranted = !m_xSession;
// answer the session manager even if no listeners available anymore
SAL_WARN_IF( aListeners.empty(), "vcl.se" , "saveRequested but no listeners !" );
SAL_INFO("vcl.se.debug" , " aListeners.empty() = " << (aListeners.empty() ? "true" : "false" ) <<
", bShutdown = " << (bShutdown ? "true" : "false" ));
if ( aListeners.empty() )
{
if (m_xSession)
m_xSession->saveDone();
return ;
}
}
SolarMutexReleaser aReleaser;
for (auto const & listener: aListeners)
listener.m_xListener->doSave( bShutdown, false /*bCancelable*/ );
}
void VCLSession::callInteractionGranted( bool bInteractionGranted )
{
SAL_INFO("vcl.se" , "VCLSession::callInteractionGranted" );
std::vector< Listener > aListeners;
{
std::unique_lock aGuard( m_aMutex );
// copy listener vector since calling a listener may remove it.
for (auto const & listener: m_aListeners)
if ( listener.m_bInteractionRequested )
aListeners.push_back( listener );
m_bInteractionGranted = bInteractionGranted;
// answer the session manager even if no listeners available anymore
SAL_WARN_IF( aListeners.empty(), "vcl.se" , "interactionGranted but no listeners !" );
SAL_INFO("vcl.se.debug" , " aListeners.empty() = " << (aListeners.empty() ? "true" : "false" ) <<
", bInteractionGranted = " << (bInteractionGranted ? "true" : "false" ));
if ( aListeners.empty() )
{
if (m_xSession)
m_xSession->interactionDone();
return ;
}
}
SolarMutexReleaser aReleaser;
for (auto const & listener: aListeners)
listener.m_xListener->approveInteraction( bInteractionGranted );
}
void VCLSession::callShutdownCancelled()
{
SAL_INFO("vcl.se" , "VCLSession::callShutdownCancelled" );
std::vector< Listener > aListeners;
{
std::unique_lock aGuard( m_aMutex );
// copy listener vector since calling a listener may remove it.
aListeners = m_aListeners;
// set back interaction state
m_bInteractionRequested = m_bInteractionDone = m_bInteractionGranted = false ;
}
SolarMutexReleaser aReleaser;
for (auto const & listener: aListeners)
listener.m_xListener->shutdownCanceled();
}
void VCLSession::callQuit()
{
SAL_INFO("vcl.se" , "VCLSession::callQuit" );
std::vector< Listener > aListeners;
{
std::unique_lock aGuard( m_aMutex );
// copy listener vector since calling a listener may remove it.
aListeners = m_aListeners;
// set back interaction state
m_bInteractionRequested = m_bInteractionDone = m_bInteractionGranted = false ;
}
SolarMutexReleaser aReleaser;
for (auto const & listener: aListeners)
{
css::uno::Reference< XSessionManagerListener2 > xListener2( listener.m_xListener, UNO_QUERY );
if ( xListener2.is() )
xListener2->doQuit();
}
}
void VCLSession::SalSessionEventProc( void * pData, SalSessionEvent* pEvent )
{
SAL_INFO("vcl.se" , "VCLSession::SalSessionEventProc" );
VCLSession * pThis = static_cast < VCLSession * >( pData );
switch ( pEvent->m_eType )
{
case Interaction:
{
SAL_INFO("vcl.se.debug" , " EventProcType = Interaction" );
SalSessionInteractionEvent* pIEv = static_cast <SalSessionInteractionEvent*>(pEvent);
pThis->callInteractionGranted( pIEv->m_bInteractionGranted );
}
break ;
case SaveRequest:
{
SAL_INFO("vcl.se.debug" , " EventProcType = SaveRequest" );
SalSessionSaveRequestEvent* pSEv = static_cast <SalSessionSaveRequestEvent*>(pEvent);
pThis->callSaveRequested( pSEv->m_bShutdown );
}
break ;
case ShutdownCancel:
SAL_INFO("vcl.se.debug" , " EventProcType = ShutdownCancel" );
pThis->callShutdownCancelled();
break ;
case Quit:
SAL_INFO("vcl.se.debug" , " EventProcType = Quit" );
pThis->callQuit();
break ;
}
}
void SAL_CALL VCLSession::addSessionManagerListener( const css::uno::Reference<XSessionManagerListener>& xListener )
{
SAL_INFO("vcl.se" , "VCLSession::addSessionManagerListener" );
std::unique_lock aGuard( m_aMutex );
SAL_INFO("vcl.se.debug" , " m_aListeners.size() = " << m_aListeners.size() );
m_aListeners.emplace_back( xListener );
}
void SAL_CALL VCLSession::removeSessionManagerListener( const css::uno::Reference<XSessionManagerListener>& xListener )
{
SAL_INFO("vcl.se" , "VCLSession::removeSessionManagerListener" );
std::unique_lock aGuard( m_aMutex );
SAL_INFO("vcl.se.debug" , " m_aListeners.size() = " << m_aListeners.size() );
std::erase_if(m_aListeners, [&](Listener& listener) {return xListener == listener.m_xListener;});
}
void SAL_CALL VCLSession::queryInteraction( const css::uno::Reference<XSessionManagerListener>& xListener )
{
SAL_INFO("vcl.se" , "VCLSession::queryInteraction" );
SAL_INFO("vcl.se.debug" , " m_bInteractionGranted = " << (m_bInteractionGranted ? "true" : "false" ) <<
", m_bInteractionRequested = " << (m_bInteractionRequested ? "true" : "false" ));
std::unique_lock aGuard( m_aMutex );
if ( m_bInteractionGranted )
{
bool bInteractionDone = m_bInteractionDone;
aGuard.unlock();
if ( bInteractionDone )
xListener->approveInteraction( false );
else
xListener->approveInteraction( true );
return ;
}
if ( ! m_bInteractionRequested )
{
if (m_xSession)
m_xSession->queryInteraction();
m_bInteractionRequested = true ;
}
for (auto & listener: m_aListeners)
{
if ( listener.m_xListener == xListener )
{
SAL_INFO("vcl.se.debug" , " listener.m_xListener == xListener" );
listener.m_bInteractionRequested = true ;
listener.m_bInteractionDone = false ;
}
}
}
void SAL_CALL VCLSession::interactionDone( const css::uno::Reference< XSessionManagerListener >& xListener )
{
SAL_INFO("vcl.se" , "VCLSession::interactionDone" );
std::unique_lock aGuard( m_aMutex );
int nRequested = 0, nDone = 0;
for (auto & listener: m_aListeners)
{
if ( listener.m_bInteractionRequested )
{
nRequested++;
if ( xListener == listener.m_xListener )
listener.m_bInteractionDone = true ;
}
if ( listener.m_bInteractionDone )
nDone++;
}
SAL_INFO("vcl.se.debug" , " nDone = " << nDone <<
", nRequested =" << nRequested);
if ( nDone == nRequested && nDone > 0 )
{
m_bInteractionDone = true ;
if (m_xSession)
m_xSession->interactionDone();
}
}
void SAL_CALL VCLSession::saveDone( const css::uno::Reference< XSessionManagerListener >& xListener )
{
SAL_INFO("vcl.se" , "VCLSession::saveDone" );
std::unique_lock aGuard( m_aMutex );
bool bSaveDone = true ;
for (auto & listener: m_aListeners)
{
if ( listener.m_xListener == xListener )
listener.m_bSaveDone = true ;
if ( ! listener.m_bSaveDone )
bSaveDone = false ;
}
SAL_INFO("vcl.se.debug" , " bSaveDone = " << (bSaveDone ? "true" : "false" ));
if ( bSaveDone && !m_bSaveDone )
{
m_bSaveDone = true ;
if (m_xSession)
m_xSession->saveDone();
}
}
sal_Bool SAL_CALL VCLSession::cancelShutdown()
{
SAL_INFO("vcl.se" , "VCLSession::cancelShutdown" );
return m_xSession && m_xSession->cancelShutdown();
}
void VCLSession::disposing(std::unique_lock<std::mutex>& rGuard) {
SAL_INFO("vcl.se" , "VCLSession::disposing" );
std::vector<Listener> vector;
{
vector.swap(m_aListeners);
}
css::lang::EventObject src(getXWeak());
for (auto const & listener: vector) {
rGuard.unlock();
try {
listener.m_xListener->disposing(src);
SAL_INFO("vcl.se.debug" , " call Listener disposing" );
} catch (css::uno::RuntimeException &) {
TOOLS_WARN_EXCEPTION("vcl.se" , "ignoring" );
}
rGuard.lock();
}
}
// service implementation
extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
com_sun_star_frame_VCLSessionManagerClient_get_implementation(
css::uno::XComponentContext* , css::uno::Sequence<css::uno::Any> const &)
{
return cppu::acquire(new VCLSession);
}
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2026-04-02