419 lines
14 KiB
C++
419 lines
14 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <memory>
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#include <sal/config.h>
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#include <sal/log.hxx>
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#include <comphelper/compbase.hxx>
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#include <cppuhelper/supportsservice.hxx>
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#include <comphelper/diagnose_ex.hxx>
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#include <utility>
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#include <vcl/svapp.hxx>
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#include <factory.hxx>
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#include <svdata.hxx>
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#include <salinst.hxx>
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#include <salsession.hxx>
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#include <com/sun/star/frame/XSessionManagerClient.hpp>
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#include <com/sun/star/lang/XMultiServiceFactory.hpp>
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#include <com/sun/star/lang/XServiceInfo.hpp>
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#include <com/sun/star/frame/XSessionManagerListener2.hpp>
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#include <vector>
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using namespace com::sun::star::uno;
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using namespace com::sun::star::lang;
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using namespace com::sun::star::frame;
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SalSession::~SalSession()
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{
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}
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namespace {
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class VCLSession:
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public comphelper::WeakComponentImplHelper < XSessionManagerClient, css::lang::XServiceInfo >
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{
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struct Listener
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{
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css::uno::Reference< XSessionManagerListener > m_xListener;
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bool m_bInteractionRequested;
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bool m_bInteractionDone;
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bool m_bSaveDone;
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explicit Listener( css::uno::Reference< XSessionManagerListener > xListener )
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: m_xListener(std::move( xListener )),
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m_bInteractionRequested( false ),
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m_bInteractionDone( false ),
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m_bSaveDone( false )
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{}
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};
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std::vector< Listener > m_aListeners;
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std::unique_ptr< SalSession > m_xSession;
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bool m_bInteractionRequested;
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bool m_bInteractionGranted;
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bool m_bInteractionDone;
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bool m_bSaveDone;
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static void SalSessionEventProc( void* pData, SalSessionEvent* pEvent );
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virtual ~VCLSession() override {}
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virtual void SAL_CALL addSessionManagerListener( const css::uno::Reference< XSessionManagerListener >& xListener ) override;
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virtual void SAL_CALL removeSessionManagerListener( const css::uno::Reference< XSessionManagerListener>& xListener ) override;
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virtual void SAL_CALL queryInteraction( const css::uno::Reference< XSessionManagerListener >& xListener ) override;
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virtual void SAL_CALL interactionDone( const css::uno::Reference< XSessionManagerListener >& xListener ) override;
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virtual void SAL_CALL saveDone( const css::uno::Reference< XSessionManagerListener >& xListener ) override;
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virtual sal_Bool SAL_CALL cancelShutdown() override;
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OUString SAL_CALL getImplementationName() override {
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return u"com.sun.star.frame.VCLSessionManagerClient"_ustr;
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}
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sal_Bool SAL_CALL supportsService(OUString const & ServiceName) override {
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return cppu::supportsService(this, ServiceName);
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}
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css::uno::Sequence<OUString> SAL_CALL getSupportedServiceNames() override {
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return {u"com.sun.star.frame.SessionManagerClient"_ustr};
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}
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void disposing(std::unique_lock<std::mutex>& rGuard) override;
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void callSaveRequested( bool bShutdown );
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void callShutdownCancelled();
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void callInteractionGranted( bool bGranted );
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void callQuit();
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public:
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VCLSession();
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};
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}
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VCLSession::VCLSession()
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: m_xSession( ImplGetSVData()->mpDefInst->CreateSalSession() ),
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m_bInteractionRequested( false ),
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m_bInteractionGranted( false ),
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m_bInteractionDone( false ),
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m_bSaveDone( false )
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{
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SAL_INFO("vcl.se", "VCLSession::VCLSession" );
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if (m_xSession)
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m_xSession->SetCallback( SalSessionEventProc, this );
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}
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void VCLSession::callSaveRequested( bool bShutdown )
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{
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SAL_INFO("vcl.se", "VCLSession::callSaveRequested" );
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std::vector< Listener > aListeners;
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{
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std::unique_lock aGuard( m_aMutex );
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// reset listener states
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for (auto & listener : m_aListeners) {
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listener.m_bSaveDone = listener.m_bInteractionRequested = listener.m_bInteractionDone = false;
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}
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// copy listener vector since calling a listener may remove it.
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aListeners = m_aListeners;
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// set back interaction state
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m_bSaveDone = false;
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m_bInteractionDone = false;
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// without session we assume UI is always possible,
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// so it was requested and granted
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m_bInteractionRequested = m_bInteractionGranted = !m_xSession;
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// answer the session manager even if no listeners available anymore
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SAL_WARN_IF( aListeners.empty(), "vcl.se", "saveRequested but no listeners !" );
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SAL_INFO("vcl.se.debug", " aListeners.empty() = " << (aListeners.empty() ? "true" : "false") <<
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", bShutdown = " << (bShutdown ? "true" : "false"));
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if( aListeners.empty() )
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{
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if (m_xSession)
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m_xSession->saveDone();
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return;
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}
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}
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SolarMutexReleaser aReleaser;
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for (auto const & listener: aListeners)
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listener.m_xListener->doSave( bShutdown, false/*bCancelable*/ );
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}
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void VCLSession::callInteractionGranted( bool bInteractionGranted )
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{
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SAL_INFO("vcl.se", "VCLSession::callInteractionGranted" );
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std::vector< Listener > aListeners;
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{
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std::unique_lock aGuard( m_aMutex );
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// copy listener vector since calling a listener may remove it.
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for (auto const & listener: m_aListeners)
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if( listener.m_bInteractionRequested )
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aListeners.push_back( listener );
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m_bInteractionGranted = bInteractionGranted;
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// answer the session manager even if no listeners available anymore
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SAL_WARN_IF( aListeners.empty(), "vcl.se", "interactionGranted but no listeners !" );
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SAL_INFO("vcl.se.debug", " aListeners.empty() = " << (aListeners.empty() ? "true" : "false") <<
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", bInteractionGranted = " << (bInteractionGranted ? "true" : "false"));
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if( aListeners.empty() )
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{
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if (m_xSession)
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m_xSession->interactionDone();
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return;
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}
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}
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SolarMutexReleaser aReleaser;
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for (auto const & listener: aListeners)
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listener.m_xListener->approveInteraction( bInteractionGranted );
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}
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void VCLSession::callShutdownCancelled()
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{
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SAL_INFO("vcl.se", "VCLSession::callShutdownCancelled");
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std::vector< Listener > aListeners;
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{
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std::unique_lock aGuard( m_aMutex );
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// copy listener vector since calling a listener may remove it.
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aListeners = m_aListeners;
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// set back interaction state
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m_bInteractionRequested = m_bInteractionDone = m_bInteractionGranted = false;
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}
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SolarMutexReleaser aReleaser;
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for (auto const & listener: aListeners)
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listener.m_xListener->shutdownCanceled();
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}
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void VCLSession::callQuit()
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{
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SAL_INFO("vcl.se", "VCLSession::callQuit");
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std::vector< Listener > aListeners;
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{
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std::unique_lock aGuard( m_aMutex );
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// copy listener vector since calling a listener may remove it.
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aListeners = m_aListeners;
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// set back interaction state
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m_bInteractionRequested = m_bInteractionDone = m_bInteractionGranted = false;
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}
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SolarMutexReleaser aReleaser;
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for (auto const & listener: aListeners)
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{
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css::uno::Reference< XSessionManagerListener2 > xListener2( listener.m_xListener, UNO_QUERY );
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if( xListener2.is() )
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xListener2->doQuit();
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}
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}
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void VCLSession::SalSessionEventProc( void* pData, SalSessionEvent* pEvent )
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{
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SAL_INFO("vcl.se", "VCLSession::SalSessionEventProc");
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VCLSession * pThis = static_cast< VCLSession * >( pData );
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switch( pEvent->m_eType )
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{
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case Interaction:
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{
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SAL_INFO("vcl.se.debug", " EventProcType = Interaction");
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SalSessionInteractionEvent* pIEv = static_cast<SalSessionInteractionEvent*>(pEvent);
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pThis->callInteractionGranted( pIEv->m_bInteractionGranted );
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}
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break;
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case SaveRequest:
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{
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SAL_INFO("vcl.se.debug", " EventProcType = SaveRequest");
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SalSessionSaveRequestEvent* pSEv = static_cast<SalSessionSaveRequestEvent*>(pEvent);
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pThis->callSaveRequested( pSEv->m_bShutdown );
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}
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break;
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case ShutdownCancel:
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SAL_INFO("vcl.se.debug", " EventProcType = ShutdownCancel");
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pThis->callShutdownCancelled();
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break;
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case Quit:
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SAL_INFO("vcl.se.debug", " EventProcType = Quit");
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pThis->callQuit();
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break;
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}
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}
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void SAL_CALL VCLSession::addSessionManagerListener( const css::uno::Reference<XSessionManagerListener>& xListener )
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{
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SAL_INFO("vcl.se", "VCLSession::addSessionManagerListener" );
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std::unique_lock aGuard( m_aMutex );
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SAL_INFO("vcl.se.debug", " m_aListeners.size() = " << m_aListeners.size() );
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m_aListeners.emplace_back( xListener );
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}
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void SAL_CALL VCLSession::removeSessionManagerListener( const css::uno::Reference<XSessionManagerListener>& xListener )
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{
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SAL_INFO("vcl.se", "VCLSession::removeSessionManagerListener" );
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std::unique_lock aGuard( m_aMutex );
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SAL_INFO("vcl.se.debug", " m_aListeners.size() = " << m_aListeners.size() );
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std::erase_if(m_aListeners, [&](Listener& listener) {return xListener == listener.m_xListener;});
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}
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void SAL_CALL VCLSession::queryInteraction( const css::uno::Reference<XSessionManagerListener>& xListener )
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{
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SAL_INFO("vcl.se", "VCLSession::queryInteraction");
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SAL_INFO("vcl.se.debug", " m_bInteractionGranted = " << (m_bInteractionGranted ? "true" : "false") <<
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", m_bInteractionRequested = "<< (m_bInteractionRequested ? "true" : "false"));
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std::unique_lock aGuard( m_aMutex );
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if( m_bInteractionGranted )
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{
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bool bInteractionDone = m_bInteractionDone;
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aGuard.unlock();
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if( bInteractionDone )
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xListener->approveInteraction( false );
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else
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xListener->approveInteraction( true );
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return;
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}
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if( ! m_bInteractionRequested )
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{
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if (m_xSession)
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m_xSession->queryInteraction();
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m_bInteractionRequested = true;
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}
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for (auto & listener: m_aListeners)
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{
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if( listener.m_xListener == xListener )
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{
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SAL_INFO("vcl.se.debug", " listener.m_xListener == xListener");
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listener.m_bInteractionRequested = true;
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listener.m_bInteractionDone = false;
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}
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}
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}
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void SAL_CALL VCLSession::interactionDone( const css::uno::Reference< XSessionManagerListener >& xListener )
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{
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SAL_INFO("vcl.se", "VCLSession::interactionDone");
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std::unique_lock aGuard( m_aMutex );
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int nRequested = 0, nDone = 0;
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for (auto & listener: m_aListeners)
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{
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if( listener.m_bInteractionRequested )
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{
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nRequested++;
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if( xListener == listener.m_xListener )
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listener.m_bInteractionDone = true;
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}
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if( listener.m_bInteractionDone )
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nDone++;
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}
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SAL_INFO("vcl.se.debug", " nDone = " << nDone <<
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", nRequested =" << nRequested);
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if( nDone == nRequested && nDone > 0 )
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{
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m_bInteractionDone = true;
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if (m_xSession)
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m_xSession->interactionDone();
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}
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}
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void SAL_CALL VCLSession::saveDone( const css::uno::Reference< XSessionManagerListener >& xListener )
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{
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SAL_INFO("vcl.se", "VCLSession::saveDone");
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std::unique_lock aGuard( m_aMutex );
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bool bSaveDone = true;
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for (auto & listener: m_aListeners)
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{
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if( listener.m_xListener == xListener )
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listener.m_bSaveDone = true;
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if( ! listener.m_bSaveDone )
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bSaveDone = false;
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}
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SAL_INFO("vcl.se.debug", " bSaveDone = " << (bSaveDone ? "true" : "false"));
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if( bSaveDone && !m_bSaveDone )
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{
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m_bSaveDone = true;
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if (m_xSession)
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m_xSession->saveDone();
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}
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}
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sal_Bool SAL_CALL VCLSession::cancelShutdown()
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{
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SAL_INFO("vcl.se", "VCLSession::cancelShutdown");
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return m_xSession && m_xSession->cancelShutdown();
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}
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void VCLSession::disposing(std::unique_lock<std::mutex>& rGuard) {
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SAL_INFO("vcl.se", "VCLSession::disposing");
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std::vector<Listener> vector;
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{
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vector.swap(m_aListeners);
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}
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css::lang::EventObject src(getXWeak());
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for (auto const & listener: vector) {
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rGuard.unlock();
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try {
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listener.m_xListener->disposing(src);
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SAL_INFO("vcl.se.debug", " call Listener disposing");
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} catch (css::uno::RuntimeException &) {
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TOOLS_WARN_EXCEPTION("vcl.se", "ignoring");
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}
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rGuard.lock();
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}
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}
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// service implementation
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extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
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com_sun_star_frame_VCLSessionManagerClient_get_implementation(
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css::uno::XComponentContext* , css::uno::Sequence<css::uno::Any> const&)
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{
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return cppu::acquire(new VCLSession);
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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