513 lines
16 KiB
C++
513 lines
16 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2000, 2010 Oracle and/or its affiliates.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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#include "comphelper_module.hxx"
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#include <com/sun/star/util/XCloseBroadcaster.hpp>
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#include <com/sun/star/util/XCloseable.hpp>
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#include <com/sun/star/lang/DisposedException.hpp>
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#include <com/sun/star/lang/IllegalArgumentException.hpp>
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#include <com/sun/star/frame/XDesktop.hpp>
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#include <com/sun/star/frame/DoubleInitializationException.hpp>
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#include <com/sun/star/beans/XPropertySet.hpp>
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#include "instancelocker.hxx"
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using namespace ::com::sun::star;
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// ====================================================================
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// OInstanceLocker
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// ====================================================================
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// --------------------------------------------------------
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OInstanceLocker::OInstanceLocker( const uno::Reference< uno::XComponentContext >& xContext )
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: m_xContext( xContext )
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, m_pLockListener( NULL )
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, m_pListenersContainer( NULL )
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, m_bDisposed( sal_False )
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, m_bInitialized( sal_False )
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{
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}
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// --------------------------------------------------------
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OInstanceLocker::~OInstanceLocker()
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{
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if ( !m_bDisposed )
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{
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m_refCount++; // to call dispose
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try {
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dispose();
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}
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catch ( uno::RuntimeException& )
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{}
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}
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if ( m_pListenersContainer )
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{
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delete m_pListenersContainer;
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m_pListenersContainer = NULL;
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}
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}
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// XComponent
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// --------------------------------------------------------
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void SAL_CALL OInstanceLocker::dispose()
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throw (uno::RuntimeException)
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{
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::osl::MutexGuard aGuard( m_aMutex );
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if ( m_bDisposed )
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throw lang::DisposedException();
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lang::EventObject aSource( static_cast< ::cppu::OWeakObject* >(this) );
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if ( m_pListenersContainer )
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m_pListenersContainer->disposeAndClear( aSource );
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if ( m_xLockListener.is() )
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{
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if ( m_pLockListener )
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{
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m_pLockListener->Dispose();
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m_pLockListener = NULL;
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}
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m_xLockListener = uno::Reference< uno::XInterface >();
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}
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m_bDisposed = sal_True;
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}
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// --------------------------------------------------------
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void SAL_CALL OInstanceLocker::addEventListener( const uno::Reference< lang::XEventListener >& xListener )
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throw (uno::RuntimeException)
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{
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::osl::MutexGuard aGuard( m_aMutex );
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if ( m_bDisposed )
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throw lang::DisposedException(); // TODO
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if ( !m_pListenersContainer )
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m_pListenersContainer = new ::cppu::OInterfaceContainerHelper( m_aMutex );
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m_pListenersContainer->addInterface( xListener );
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}
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// --------------------------------------------------------
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void SAL_CALL OInstanceLocker::removeEventListener( const uno::Reference< lang::XEventListener >& xListener )
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throw (uno::RuntimeException)
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{
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::osl::MutexGuard aGuard( m_aMutex );
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if ( m_pListenersContainer )
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m_pListenersContainer->removeInterface( xListener );
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}
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// XInitialization
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// --------------------------------------------------------
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void SAL_CALL OInstanceLocker::initialize( const uno::Sequence< uno::Any >& aArguments )
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throw (uno::Exception, uno::RuntimeException)
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{
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::osl::MutexGuard aGuard( m_aMutex );
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if ( m_bInitialized )
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throw frame::DoubleInitializationException();
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if ( m_bDisposed )
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throw lang::DisposedException(); // TODO
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if ( !m_refCount )
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throw uno::RuntimeException(); // the object must be refcounted already!
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uno::Reference< uno::XInterface > xInstance;
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uno::Reference< embed::XActionsApproval > xApproval;
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sal_Int32 nModes = 0;
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try
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{
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sal_Int32 nLen = aArguments.getLength();
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if ( nLen < 2 || nLen > 3 )
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throw lang::IllegalArgumentException(
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::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM("Wrong count of parameters!" ) ),
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uno::Reference< uno::XInterface >(),
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0 );
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if ( !( aArguments[0] >>= xInstance ) || !xInstance.is() )
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throw lang::IllegalArgumentException(
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::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM("Nonempty reference is expected as the first argument!" ) ),
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uno::Reference< uno::XInterface >(),
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0 );
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if (
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!( aArguments[1] >>= nModes ) ||
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(
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!( nModes & embed::Actions::PREVENT_CLOSE ) &&
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!( nModes & embed::Actions::PREVENT_TERMINATION )
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)
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)
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{
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throw lang::IllegalArgumentException(
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::rtl::OUString(
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RTL_CONSTASCII_USTRINGPARAM("The correct modes set is expected as the second argument!" ) ),
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uno::Reference< uno::XInterface >(),
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0 );
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}
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if ( nLen == 3 && !( aArguments[2] >>= xApproval ) )
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throw lang::IllegalArgumentException(
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::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM("If the third argument is provided, it must be XActionsApproval implementation!" ) ),
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uno::Reference< uno::XInterface >(),
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0 );
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m_pLockListener = new OLockListener( uno::Reference< lang::XComponent > ( static_cast< lang::XComponent* >( this ) ),
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xInstance,
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nModes,
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xApproval );
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m_xLockListener = uno::Reference< uno::XInterface >( static_cast< OWeakObject* >( m_pLockListener ) );
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m_pLockListener->Init();
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}
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catch( uno::Exception& )
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{
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dispose();
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throw;
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}
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m_bInitialized = sal_True;
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}
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// XServiceInfo
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// --------------------------------------------------------
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::rtl::OUString SAL_CALL OInstanceLocker::getImplementationName( )
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throw (uno::RuntimeException)
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{
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return getImplementationName_static();
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}
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// --------------------------------------------------------
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::sal_Bool SAL_CALL OInstanceLocker::supportsService( const ::rtl::OUString& ServiceName )
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throw (uno::RuntimeException)
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{
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uno::Sequence< ::rtl::OUString > aSeq = getSupportedServiceNames();
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for ( sal_Int32 nInd = 0; nInd < aSeq.getLength(); nInd++ )
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if ( ServiceName.compareTo( aSeq[nInd] ) == 0 )
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return sal_True;
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return sal_False;
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}
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// --------------------------------------------------------
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uno::Sequence< ::rtl::OUString > SAL_CALL OInstanceLocker::getSupportedServiceNames()
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throw (uno::RuntimeException)
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{
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return getSupportedServiceNames_static();
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}
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// Static methods
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// --------------------------------------------------------
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uno::Sequence< ::rtl::OUString > SAL_CALL OInstanceLocker::getSupportedServiceNames_static()
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{
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const rtl::OUString aServiceName( RTL_CONSTASCII_USTRINGPARAM( "com.sun.star.embed.InstanceLocker" ) );
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return uno::Sequence< rtl::OUString >( &aServiceName, 1 );
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}
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// --------------------------------------------------------
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::rtl::OUString SAL_CALL OInstanceLocker::getImplementationName_static()
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{
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return rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "com.sun.star.comp.embed.InstanceLocker" ) );
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}
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// --------------------------------------------------------
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uno::Reference< uno::XInterface > SAL_CALL OInstanceLocker::Create(
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const uno::Reference< uno::XComponentContext >& rxContext )
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{
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return static_cast< cppu::OWeakObject * >( new OInstanceLocker( rxContext ) );
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}
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// ====================================================================
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// OLockListener
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// ====================================================================
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// --------------------------------------------------------
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OLockListener::OLockListener( const uno::WeakReference< lang::XComponent >& xWrapper,
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const uno::Reference< uno::XInterface >& xInstance,
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sal_Int32 nMode,
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const uno::Reference< embed::XActionsApproval > xApproval )
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: m_xInstance( xInstance )
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, m_xApproval( xApproval )
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, m_xWrapper( xWrapper )
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, m_bDisposed( sal_False )
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, m_bInitialized( sal_False )
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, m_nMode( nMode )
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{
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}
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// --------------------------------------------------------
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OLockListener::~OLockListener()
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{
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}
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// --------------------------------------------------------
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void OLockListener::Dispose()
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{
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::osl::ResettableMutexGuard aGuard( m_aMutex );
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if ( m_bDisposed )
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return;
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if ( m_nMode & embed::Actions::PREVENT_CLOSE )
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{
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try
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{
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uno::Reference< util::XCloseBroadcaster > xCloseBroadcaster( m_xInstance, uno::UNO_QUERY );
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if ( xCloseBroadcaster.is() )
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xCloseBroadcaster->removeCloseListener( static_cast< util::XCloseListener* >( this ) );
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uno::Reference< util::XCloseable > xCloseable( m_xInstance, uno::UNO_QUERY );
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if ( xCloseable.is() )
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xCloseable->close( sal_True );
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}
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catch( uno::Exception& )
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{}
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}
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if ( m_nMode & embed::Actions::PREVENT_TERMINATION )
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{
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try
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{
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uno::Reference< frame::XDesktop > xDesktop( m_xInstance, uno::UNO_QUERY_THROW );
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xDesktop->removeTerminateListener( static_cast< frame::XTerminateListener* >( this ) );
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}
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catch( uno::Exception& )
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{}
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}
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m_xInstance = uno::Reference< uno::XInterface >();
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m_bDisposed = sal_True;
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}
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// XEventListener
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// --------------------------------------------------------
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void SAL_CALL OLockListener::disposing( const lang::EventObject& aEvent )
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throw (uno::RuntimeException)
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{
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::osl::ResettableMutexGuard aGuard( m_aMutex );
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// object is disposed
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if ( aEvent.Source == m_xInstance )
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{
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// the object does not listen for anything any more
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m_nMode = 0;
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// dispose the wrapper;
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uno::Reference< lang::XComponent > xComponent( m_xWrapper.get(), uno::UNO_QUERY );
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aGuard.clear();
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if ( xComponent.is() )
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{
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try { xComponent->dispose(); }
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catch( uno::Exception& ){}
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}
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}
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}
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// XCloseListener
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// --------------------------------------------------------
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void SAL_CALL OLockListener::queryClosing( const lang::EventObject& aEvent, sal_Bool )
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throw (util::CloseVetoException, uno::RuntimeException)
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{
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// GetsOwnership parameter is always ignored, the user of the service must close the object always
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::osl::ResettableMutexGuard aGuard( m_aMutex );
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if ( !m_bDisposed && aEvent.Source == m_xInstance && ( m_nMode & embed::Actions::PREVENT_CLOSE ) )
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{
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try
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{
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uno::Reference< embed::XActionsApproval > xApprove = m_xApproval;
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// unlock the mutex here
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aGuard.clear();
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if ( xApprove.is() && xApprove->approveAction( embed::Actions::PREVENT_CLOSE ) )
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throw util::CloseVetoException();
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}
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catch( util::CloseVetoException& )
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{
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// rethrow this exception
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throw;
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}
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catch( uno::Exception& )
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{
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// no action should be done
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}
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}
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}
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// --------------------------------------------------------
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void SAL_CALL OLockListener::notifyClosing( const lang::EventObject& aEvent )
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throw (uno::RuntimeException)
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{
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::osl::ResettableMutexGuard aGuard( m_aMutex );
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// object is closed, no reason to listen
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if ( aEvent.Source == m_xInstance )
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{
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uno::Reference< util::XCloseBroadcaster > xCloseBroadcaster( aEvent.Source, uno::UNO_QUERY );
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if ( xCloseBroadcaster.is() )
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{
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xCloseBroadcaster->removeCloseListener( static_cast< util::XCloseListener* >( this ) );
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m_nMode &= ~embed::Actions::PREVENT_CLOSE;
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if ( !m_nMode )
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{
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// dispose the wrapper;
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uno::Reference< lang::XComponent > xComponent( m_xWrapper.get(), uno::UNO_QUERY );
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aGuard.clear();
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if ( xComponent.is() )
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{
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try { xComponent->dispose(); }
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catch( uno::Exception& ){}
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}
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}
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}
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}
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}
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// XTerminateListener
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// --------------------------------------------------------
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void SAL_CALL OLockListener::queryTermination( const lang::EventObject& aEvent )
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throw (frame::TerminationVetoException, uno::RuntimeException)
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{
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::osl::ResettableMutexGuard aGuard( m_aMutex );
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if ( aEvent.Source == m_xInstance && ( m_nMode & embed::Actions::PREVENT_TERMINATION ) )
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{
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try
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{
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uno::Reference< embed::XActionsApproval > xApprove = m_xApproval;
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// unlock the mutex here
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aGuard.clear();
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if ( xApprove.is() && xApprove->approveAction( embed::Actions::PREVENT_TERMINATION ) )
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throw frame::TerminationVetoException();
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}
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catch( frame::TerminationVetoException& )
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{
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// rethrow this exception
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throw;
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}
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catch( uno::Exception& )
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{
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// no action should be done
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}
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}
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}
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// --------------------------------------------------------
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void SAL_CALL OLockListener::notifyTermination( const lang::EventObject& aEvent )
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throw (uno::RuntimeException)
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{
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::osl::ResettableMutexGuard aGuard( m_aMutex );
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// object is terminated, no reason to listen
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if ( aEvent.Source == m_xInstance )
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{
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uno::Reference< frame::XDesktop > xDesktop( aEvent.Source, uno::UNO_QUERY );
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if ( xDesktop.is() )
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{
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try
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{
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xDesktop->removeTerminateListener( static_cast< frame::XTerminateListener* >( this ) );
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m_nMode &= ~embed::Actions::PREVENT_TERMINATION;
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if ( !m_nMode )
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{
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// dispose the wrapper;
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uno::Reference< lang::XComponent > xComponent( m_xWrapper.get(), uno::UNO_QUERY );
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aGuard.clear();
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if ( xComponent.is() )
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{
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try { xComponent->dispose(); }
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catch( uno::Exception& ){}
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}
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}
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}
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catch( uno::Exception& )
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{}
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}
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}
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}
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// XInitialization
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// --------------------------------------------------------
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sal_Bool OLockListener::Init()
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{
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::osl::ResettableMutexGuard aGuard( m_aMutex );
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if ( m_bDisposed || m_bInitialized )
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return sal_False;
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try
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{
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if ( m_nMode & embed::Actions::PREVENT_CLOSE )
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{
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uno::Reference< util::XCloseBroadcaster > xCloseBroadcaster( m_xInstance, uno::UNO_QUERY_THROW );
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xCloseBroadcaster->addCloseListener( static_cast< util::XCloseListener* >( this ) );
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}
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if ( m_nMode & embed::Actions::PREVENT_TERMINATION )
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{
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uno::Reference< frame::XDesktop > xDesktop( m_xInstance, uno::UNO_QUERY_THROW );
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xDesktop->addTerminateListener( static_cast< frame::XTerminateListener* >( this ) );
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}
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}
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catch( uno::Exception& )
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{
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// dispose the wrapper;
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uno::Reference< lang::XComponent > xComponent( m_xWrapper.get(), uno::UNO_QUERY );
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aGuard.clear();
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if ( xComponent.is() )
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{
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try { xComponent->dispose(); }
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catch( uno::Exception& ){}
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}
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throw;
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}
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m_bInitialized = sal_True;
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return sal_True;
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}
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void createRegistryInfo_OInstanceLocker()
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{
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static ::comphelper::module::OAutoRegistration< OInstanceLocker > aAutoRegistration;
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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