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See the 18*cdf0e10cSrcweir * GNU Lesser General Public License version 3 for more details 19*cdf0e10cSrcweir * (a copy is included in the LICENSE file that accompanied this code). 20*cdf0e10cSrcweir * 21*cdf0e10cSrcweir * You should have received a copy of the GNU Lesser General Public License 22*cdf0e10cSrcweir * version 3 along with OpenOffice.org. If not, see 23*cdf0e10cSrcweir * <http://www.openoffice.org/license.html> 24*cdf0e10cSrcweir * for a copy of the LGPLv3 License. 25*cdf0e10cSrcweir * 26*cdf0e10cSrcweir ************************************************************************/ 27*cdf0e10cSrcweir 28*cdf0e10cSrcweir // MARKER(update_precomp.py): autogen include statement, do not remove 29*cdf0e10cSrcweir #include "precompiled_unotools.hxx" 30*cdf0e10cSrcweir #include <unotools/desktopterminationobserver.hxx> 31*cdf0e10cSrcweir 32*cdf0e10cSrcweir /** === begin UNO includes === **/ 33*cdf0e10cSrcweir #include <com/sun/star/frame/XTerminateListener.hpp> 34*cdf0e10cSrcweir #include <com/sun/star/frame/XDesktop.hpp> 35*cdf0e10cSrcweir /** === end UNO includes === **/ 36*cdf0e10cSrcweir #include <cppuhelper/implbase1.hxx> 37*cdf0e10cSrcweir #include <comphelper/processfactory.hxx> 38*cdf0e10cSrcweir 39*cdf0e10cSrcweir #include <list> 40*cdf0e10cSrcweir 41*cdf0e10cSrcweir //........................................................................ 42*cdf0e10cSrcweir namespace utl 43*cdf0e10cSrcweir { 44*cdf0e10cSrcweir //........................................................................ 45*cdf0e10cSrcweir 46*cdf0e10cSrcweir using namespace ::com::sun::star::uno; 47*cdf0e10cSrcweir using namespace ::com::sun::star::lang; 48*cdf0e10cSrcweir using namespace ::com::sun::star::frame; 49*cdf0e10cSrcweir 50*cdf0e10cSrcweir namespace 51*cdf0e10cSrcweir { 52*cdf0e10cSrcweir //................................................................ 53*cdf0e10cSrcweir typedef ::std::list< ITerminationListener* > Listeners; 54*cdf0e10cSrcweir 55*cdf0e10cSrcweir struct ListenerAdminData 56*cdf0e10cSrcweir { 57*cdf0e10cSrcweir Listeners aListeners; 58*cdf0e10cSrcweir bool bAlreadyTerminated; 59*cdf0e10cSrcweir bool bCreatedAdapter; 60*cdf0e10cSrcweir 61*cdf0e10cSrcweir ListenerAdminData() : bAlreadyTerminated( false ), bCreatedAdapter( false ) { } 62*cdf0e10cSrcweir }; 63*cdf0e10cSrcweir 64*cdf0e10cSrcweir //................................................................ 65*cdf0e10cSrcweir ListenerAdminData& getListenerAdminData() 66*cdf0e10cSrcweir { 67*cdf0e10cSrcweir static ListenerAdminData s_aData; 68*cdf0e10cSrcweir return s_aData; 69*cdf0e10cSrcweir } 70*cdf0e10cSrcweir 71*cdf0e10cSrcweir //================================================================ 72*cdf0e10cSrcweir //= OObserverImpl 73*cdf0e10cSrcweir //================================================================ 74*cdf0e10cSrcweir class OObserverImpl : public ::cppu::WeakImplHelper1< XTerminateListener > 75*cdf0e10cSrcweir { 76*cdf0e10cSrcweir public: 77*cdf0e10cSrcweir static void ensureObservation(); 78*cdf0e10cSrcweir 79*cdf0e10cSrcweir protected: 80*cdf0e10cSrcweir OObserverImpl(); 81*cdf0e10cSrcweir ~OObserverImpl(); 82*cdf0e10cSrcweir 83*cdf0e10cSrcweir private: 84*cdf0e10cSrcweir // XTerminateListener 85*cdf0e10cSrcweir virtual void SAL_CALL queryTermination( const EventObject& Event ) throw (TerminationVetoException, RuntimeException); 86*cdf0e10cSrcweir virtual void SAL_CALL notifyTermination( const EventObject& Event ) throw (RuntimeException); 87*cdf0e10cSrcweir 88*cdf0e10cSrcweir // XEventListener 89*cdf0e10cSrcweir virtual void SAL_CALL disposing( const ::com::sun::star::lang::EventObject& Source ) throw (::com::sun::star::uno::RuntimeException); 90*cdf0e10cSrcweir }; 91*cdf0e10cSrcweir 92*cdf0e10cSrcweir //-------------------------------------------------------------------- 93*cdf0e10cSrcweir OObserverImpl::OObserverImpl() 94*cdf0e10cSrcweir { 95*cdf0e10cSrcweir } 96*cdf0e10cSrcweir 97*cdf0e10cSrcweir //-------------------------------------------------------------------- 98*cdf0e10cSrcweir OObserverImpl::~OObserverImpl() 99*cdf0e10cSrcweir { 100*cdf0e10cSrcweir } 101*cdf0e10cSrcweir 102*cdf0e10cSrcweir //-------------------------------------------------------------------- 103*cdf0e10cSrcweir void OObserverImpl::ensureObservation() 104*cdf0e10cSrcweir { 105*cdf0e10cSrcweir { 106*cdf0e10cSrcweir if ( getListenerAdminData().bCreatedAdapter ) 107*cdf0e10cSrcweir return; 108*cdf0e10cSrcweir ::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex() ); 109*cdf0e10cSrcweir if ( getListenerAdminData().bCreatedAdapter ) 110*cdf0e10cSrcweir return; 111*cdf0e10cSrcweir 112*cdf0e10cSrcweir getListenerAdminData().bCreatedAdapter = true; 113*cdf0e10cSrcweir } 114*cdf0e10cSrcweir 115*cdf0e10cSrcweir try 116*cdf0e10cSrcweir { 117*cdf0e10cSrcweir Reference< XDesktop > xDesktop; 118*cdf0e10cSrcweir xDesktop = xDesktop.query( ::comphelper::getProcessServiceFactory()->createInstance( ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "com.sun.star.frame.Desktop" ) ) ) ); 119*cdf0e10cSrcweir OSL_ENSURE( xDesktop.is(), "OObserverImpl::ensureObservation: could not ensureObservation the desktop!" ); 120*cdf0e10cSrcweir if ( xDesktop.is() ) 121*cdf0e10cSrcweir xDesktop->addTerminateListener( new OObserverImpl ); 122*cdf0e10cSrcweir } 123*cdf0e10cSrcweir catch( const Exception& ) 124*cdf0e10cSrcweir { 125*cdf0e10cSrcweir OSL_ENSURE( sal_False, "OObserverImpl::ensureObservation: caught an exception!" ); 126*cdf0e10cSrcweir } 127*cdf0e10cSrcweir } 128*cdf0e10cSrcweir 129*cdf0e10cSrcweir //-------------------------------------------------------------------- 130*cdf0e10cSrcweir void SAL_CALL OObserverImpl::queryTermination( const EventObject& /*Event*/ ) throw (TerminationVetoException, RuntimeException) 131*cdf0e10cSrcweir { 132*cdf0e10cSrcweir Listeners aToNotify; 133*cdf0e10cSrcweir { 134*cdf0e10cSrcweir ::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex() ); 135*cdf0e10cSrcweir aToNotify = getListenerAdminData().aListeners; 136*cdf0e10cSrcweir } 137*cdf0e10cSrcweir 138*cdf0e10cSrcweir for ( Listeners::const_iterator listener = aToNotify.begin(); 139*cdf0e10cSrcweir listener != aToNotify.end(); 140*cdf0e10cSrcweir ++listener 141*cdf0e10cSrcweir ) 142*cdf0e10cSrcweir { 143*cdf0e10cSrcweir if ( !(*listener)->queryTermination() ) 144*cdf0e10cSrcweir throw TerminationVetoException(); 145*cdf0e10cSrcweir } 146*cdf0e10cSrcweir } 147*cdf0e10cSrcweir 148*cdf0e10cSrcweir //-------------------------------------------------------------------- 149*cdf0e10cSrcweir void SAL_CALL OObserverImpl::notifyTermination( const EventObject& /*Event*/ ) throw (RuntimeException) 150*cdf0e10cSrcweir { 151*cdf0e10cSrcweir // get the listeners 152*cdf0e10cSrcweir Listeners aToNotify; 153*cdf0e10cSrcweir { 154*cdf0e10cSrcweir ::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex() ); 155*cdf0e10cSrcweir OSL_ENSURE( !getListenerAdminData().bAlreadyTerminated, "OObserverImpl::notifyTermination: terminated twice?" ); 156*cdf0e10cSrcweir aToNotify = getListenerAdminData().aListeners; 157*cdf0e10cSrcweir getListenerAdminData().bAlreadyTerminated = true; 158*cdf0e10cSrcweir } 159*cdf0e10cSrcweir 160*cdf0e10cSrcweir // notify the listeners 161*cdf0e10cSrcweir for ( Listeners::const_iterator listener = aToNotify.begin(); 162*cdf0e10cSrcweir listener != aToNotify.end(); 163*cdf0e10cSrcweir ++listener 164*cdf0e10cSrcweir ) 165*cdf0e10cSrcweir { 166*cdf0e10cSrcweir (*listener)->notifyTermination(); 167*cdf0e10cSrcweir } 168*cdf0e10cSrcweir 169*cdf0e10cSrcweir // clear the listener container 170*cdf0e10cSrcweir { 171*cdf0e10cSrcweir ::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex() ); 172*cdf0e10cSrcweir getListenerAdminData().aListeners.clear(); 173*cdf0e10cSrcweir } 174*cdf0e10cSrcweir } 175*cdf0e10cSrcweir 176*cdf0e10cSrcweir //-------------------------------------------------------------------- 177*cdf0e10cSrcweir void SAL_CALL OObserverImpl::disposing( const EventObject& /*Event*/ ) throw (RuntimeException) 178*cdf0e10cSrcweir { 179*cdf0e10cSrcweir #if OSL_DEBUG_LEVEL > 0 180*cdf0e10cSrcweir ::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex() ); 181*cdf0e10cSrcweir OSL_ENSURE( getListenerAdminData().bAlreadyTerminated, "OObserverImpl::disposing: disposing without terminated?" ); 182*cdf0e10cSrcweir #endif 183*cdf0e10cSrcweir // not interested in 184*cdf0e10cSrcweir } 185*cdf0e10cSrcweir } 186*cdf0e10cSrcweir 187*cdf0e10cSrcweir //==================================================================== 188*cdf0e10cSrcweir //= DesktopTerminationObserver 189*cdf0e10cSrcweir //==================================================================== 190*cdf0e10cSrcweir //-------------------------------------------------------------------- 191*cdf0e10cSrcweir void DesktopTerminationObserver::registerTerminationListener( ITerminationListener* _pListener ) 192*cdf0e10cSrcweir { 193*cdf0e10cSrcweir if ( !_pListener ) 194*cdf0e10cSrcweir return; 195*cdf0e10cSrcweir 196*cdf0e10cSrcweir { 197*cdf0e10cSrcweir ::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex() ); 198*cdf0e10cSrcweir if ( getListenerAdminData().bAlreadyTerminated ) 199*cdf0e10cSrcweir { 200*cdf0e10cSrcweir _pListener->notifyTermination(); 201*cdf0e10cSrcweir return; 202*cdf0e10cSrcweir } 203*cdf0e10cSrcweir 204*cdf0e10cSrcweir getListenerAdminData().aListeners.push_back( _pListener ); 205*cdf0e10cSrcweir } 206*cdf0e10cSrcweir 207*cdf0e10cSrcweir OObserverImpl::ensureObservation(); 208*cdf0e10cSrcweir } 209*cdf0e10cSrcweir 210*cdf0e10cSrcweir //-------------------------------------------------------------------- 211*cdf0e10cSrcweir void DesktopTerminationObserver::revokeTerminationListener( ITerminationListener* _pListener ) 212*cdf0e10cSrcweir { 213*cdf0e10cSrcweir ::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex() ); 214*cdf0e10cSrcweir Listeners& rListeners = getListenerAdminData().aListeners; 215*cdf0e10cSrcweir for ( Listeners::iterator lookup = rListeners.begin(); 216*cdf0e10cSrcweir lookup != rListeners.end(); 217*cdf0e10cSrcweir ++lookup 218*cdf0e10cSrcweir ) 219*cdf0e10cSrcweir { 220*cdf0e10cSrcweir if ( *lookup == _pListener ) 221*cdf0e10cSrcweir { 222*cdf0e10cSrcweir rListeners.erase( lookup ); 223*cdf0e10cSrcweir break; 224*cdf0e10cSrcweir } 225*cdf0e10cSrcweir } 226*cdf0e10cSrcweir } 227*cdf0e10cSrcweir 228*cdf0e10cSrcweir //........................................................................ 229*cdf0e10cSrcweir } // namespace utl 230*cdf0e10cSrcweir //........................................................................ 231*cdf0e10cSrcweir 232