| /************************************************************** |
| * |
| * 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 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| |
| |
| // MARKER(update_precomp.py): autogen include statement, do not remove |
| #include "precompiled_unotools.hxx" |
| #include <unotools/desktopterminationobserver.hxx> |
| |
| /** === begin UNO includes === **/ |
| #include <com/sun/star/frame/XTerminateListener.hpp> |
| #include <com/sun/star/frame/XDesktop.hpp> |
| /** === end UNO includes === **/ |
| #include <cppuhelper/implbase1.hxx> |
| #include <comphelper/processfactory.hxx> |
| |
| #include <list> |
| |
| //........................................................................ |
| namespace utl |
| { |
| //........................................................................ |
| |
| using namespace ::com::sun::star::uno; |
| using namespace ::com::sun::star::lang; |
| using namespace ::com::sun::star::frame; |
| |
| namespace |
| { |
| //................................................................ |
| typedef ::std::list< ITerminationListener* > Listeners; |
| |
| struct ListenerAdminData |
| { |
| Listeners aListeners; |
| bool bAlreadyTerminated; |
| bool bCreatedAdapter; |
| |
| ListenerAdminData() : bAlreadyTerminated( false ), bCreatedAdapter( false ) { } |
| }; |
| |
| //................................................................ |
| ListenerAdminData& getListenerAdminData() |
| { |
| static ListenerAdminData s_aData; |
| return s_aData; |
| } |
| |
| //================================================================ |
| //= OObserverImpl |
| //================================================================ |
| class OObserverImpl : public ::cppu::WeakImplHelper1< XTerminateListener > |
| { |
| public: |
| static void ensureObservation(); |
| |
| protected: |
| OObserverImpl(); |
| ~OObserverImpl(); |
| |
| private: |
| // XTerminateListener |
| virtual void SAL_CALL queryTermination( const EventObject& Event ) throw (TerminationVetoException, RuntimeException); |
| virtual void SAL_CALL notifyTermination( const EventObject& Event ) throw (RuntimeException); |
| |
| // XEventListener |
| virtual void SAL_CALL disposing( const ::com::sun::star::lang::EventObject& Source ) throw (::com::sun::star::uno::RuntimeException); |
| }; |
| |
| //-------------------------------------------------------------------- |
| OObserverImpl::OObserverImpl() |
| { |
| } |
| |
| //-------------------------------------------------------------------- |
| OObserverImpl::~OObserverImpl() |
| { |
| } |
| |
| //-------------------------------------------------------------------- |
| void OObserverImpl::ensureObservation() |
| { |
| { |
| if ( getListenerAdminData().bCreatedAdapter ) |
| return; |
| ::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex() ); |
| if ( getListenerAdminData().bCreatedAdapter ) |
| return; |
| |
| getListenerAdminData().bCreatedAdapter = true; |
| } |
| |
| try |
| { |
| Reference< XDesktop > xDesktop; |
| xDesktop = xDesktop.query( ::comphelper::getProcessServiceFactory()->createInstance( ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "com.sun.star.frame.Desktop" ) ) ) ); |
| OSL_ENSURE( xDesktop.is(), "OObserverImpl::ensureObservation: could not ensureObservation the desktop!" ); |
| if ( xDesktop.is() ) |
| xDesktop->addTerminateListener( new OObserverImpl ); |
| } |
| catch( const Exception& ) |
| { |
| OSL_ENSURE( sal_False, "OObserverImpl::ensureObservation: caught an exception!" ); |
| } |
| } |
| |
| //-------------------------------------------------------------------- |
| void SAL_CALL OObserverImpl::queryTermination( const EventObject& /*Event*/ ) throw (TerminationVetoException, RuntimeException) |
| { |
| Listeners aToNotify; |
| { |
| ::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex() ); |
| aToNotify = getListenerAdminData().aListeners; |
| } |
| |
| for ( Listeners::const_iterator listener = aToNotify.begin(); |
| listener != aToNotify.end(); |
| ++listener |
| ) |
| { |
| if ( !(*listener)->queryTermination() ) |
| throw TerminationVetoException(); |
| } |
| } |
| |
| //-------------------------------------------------------------------- |
| void SAL_CALL OObserverImpl::notifyTermination( const EventObject& /*Event*/ ) throw (RuntimeException) |
| { |
| // get the listeners |
| Listeners aToNotify; |
| { |
| ::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex() ); |
| OSL_ENSURE( !getListenerAdminData().bAlreadyTerminated, "OObserverImpl::notifyTermination: terminated twice?" ); |
| aToNotify = getListenerAdminData().aListeners; |
| getListenerAdminData().bAlreadyTerminated = true; |
| } |
| |
| // notify the listeners |
| for ( Listeners::const_iterator listener = aToNotify.begin(); |
| listener != aToNotify.end(); |
| ++listener |
| ) |
| { |
| (*listener)->notifyTermination(); |
| } |
| |
| // clear the listener container |
| { |
| ::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex() ); |
| getListenerAdminData().aListeners.clear(); |
| } |
| } |
| |
| //-------------------------------------------------------------------- |
| void SAL_CALL OObserverImpl::disposing( const EventObject& /*Event*/ ) throw (RuntimeException) |
| { |
| #if OSL_DEBUG_LEVEL > 0 |
| ::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex() ); |
| OSL_ENSURE( getListenerAdminData().bAlreadyTerminated, "OObserverImpl::disposing: disposing without terminated?" ); |
| #endif |
| // not interested in |
| } |
| } |
| |
| //==================================================================== |
| //= DesktopTerminationObserver |
| //==================================================================== |
| //-------------------------------------------------------------------- |
| void DesktopTerminationObserver::registerTerminationListener( ITerminationListener* _pListener ) |
| { |
| if ( !_pListener ) |
| return; |
| |
| { |
| ::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex() ); |
| if ( getListenerAdminData().bAlreadyTerminated ) |
| { |
| _pListener->notifyTermination(); |
| return; |
| } |
| |
| getListenerAdminData().aListeners.push_back( _pListener ); |
| } |
| |
| OObserverImpl::ensureObservation(); |
| } |
| |
| //-------------------------------------------------------------------- |
| void DesktopTerminationObserver::revokeTerminationListener( ITerminationListener* _pListener ) |
| { |
| ::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex() ); |
| Listeners& rListeners = getListenerAdminData().aListeners; |
| for ( Listeners::iterator lookup = rListeners.begin(); |
| lookup != rListeners.end(); |
| ++lookup |
| ) |
| { |
| if ( *lookup == _pListener ) |
| { |
| rListeners.erase( lookup ); |
| break; |
| } |
| } |
| } |
| |
| //........................................................................ |
| } // namespace utl |
| //........................................................................ |
| |