2ec606730b
Conflicts: dbaccess/source/filter/xml/xmlfilter.cxx dbaccess/source/ui/dlg/ConnectionPage.cxx dbaccess/source/ui/dlg/detailpages.cxx dbaccess/source/ui/dlg/odbcconfig.cxx dbaccess/source/ui/querydesign/querycontroller.cxx Change-Id: I3a05649efa3a43dd8d8fb069fc1bce14ca0a6338 Reviewed-on: https://gerrit.libreoffice.org/5484 Reviewed-by: Petr Mladek <pmladek@suse.cz> Tested-by: Petr Mladek <pmladek@suse.cz>
289 lines
10 KiB
C++
289 lines
10 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 "documenteventnotifier.hxx"
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#include <com/sun/star/frame/DoubleInitializationException.hpp>
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#include <comphelper/asyncnotification.hxx>
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#include <cppuhelper/interfacecontainer.hxx>
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#include <cppuhelper/weak.hxx>
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#include <tools/diagnose_ex.h>
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namespace dbaccess
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{
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using ::com::sun::star::uno::Reference;
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using ::com::sun::star::uno::XInterface;
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using ::com::sun::star::uno::UNO_QUERY;
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using ::com::sun::star::uno::UNO_QUERY_THROW;
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using ::com::sun::star::uno::UNO_SET_THROW;
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using ::com::sun::star::uno::Exception;
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using ::com::sun::star::uno::RuntimeException;
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using ::com::sun::star::uno::Any;
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using ::com::sun::star::uno::makeAny;
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using ::com::sun::star::uno::Sequence;
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using ::com::sun::star::uno::Type;
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using ::com::sun::star::frame::DoubleInitializationException;
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using ::com::sun::star::document::XDocumentEventListener;
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using ::com::sun::star::document::DocumentEvent;
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using ::com::sun::star::frame::XController2;
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using namespace ::com::sun::star;
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// DocumentEventHolder
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typedef ::comphelper::EventHolder< DocumentEvent > DocumentEventHolder;
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// DocumentEventNotifier_Impl
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class DocumentEventNotifier_Impl : public ::comphelper::IEventProcessor
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{
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oslInterlockedCount m_refCount;
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::cppu::OWeakObject& m_rDocument;
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::osl::Mutex& m_rMutex;
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bool m_bInitialized;
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bool m_bDisposed;
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::rtl::Reference< ::comphelper::AsyncEventNotifier > m_pEventBroadcaster;
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::cppu::OInterfaceContainerHelper m_aLegacyEventListeners;
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::cppu::OInterfaceContainerHelper m_aDocumentEventListeners;
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public:
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DocumentEventNotifier_Impl( ::cppu::OWeakObject& _rBroadcasterDocument, ::osl::Mutex& _rMutex )
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:m_refCount( 0 )
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,m_rDocument( _rBroadcasterDocument )
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,m_rMutex( _rMutex )
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,m_bInitialized( false )
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,m_bDisposed( false )
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,m_aLegacyEventListeners( _rMutex )
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,m_aDocumentEventListeners( _rMutex )
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{
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}
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// IReference
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virtual void SAL_CALL acquire();
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virtual void SAL_CALL release();
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void addLegacyEventListener( const Reference< document::XEventListener >& _Listener )
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{
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m_aLegacyEventListeners.addInterface( _Listener );
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}
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void removeLegacyEventListener( const Reference< document::XEventListener >& _Listener )
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{
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m_aLegacyEventListeners.removeInterface( _Listener );
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}
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void addDocumentEventListener( const Reference< XDocumentEventListener >& _Listener )
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{
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m_aDocumentEventListeners.addInterface( _Listener );
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}
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void removeDocumentEventListener( const Reference< XDocumentEventListener >& _Listener )
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{
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m_aDocumentEventListeners.removeInterface( _Listener );
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}
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void disposing();
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void onDocumentInitialized();
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void notifyDocumentEvent( const OUString& _EventName, const Reference< XController2 >& _ViewController,
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const Any& _Supplement )
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{
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impl_notifyEvent_nothrow( DocumentEvent(
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m_rDocument, _EventName, _ViewController, _Supplement ) );
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}
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void notifyDocumentEventAsync( const OUString& _EventName, const Reference< XController2 >& _ViewController,
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const Any& _Supplement )
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{
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impl_notifyEventAsync_nothrow( DocumentEvent(
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m_rDocument, _EventName, _ViewController, _Supplement ) );
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}
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protected:
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virtual ~DocumentEventNotifier_Impl()
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{
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}
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// IEventProcessor
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virtual void processEvent( const ::comphelper::AnyEvent& _rEvent );
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private:
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void impl_notifyEvent_nothrow( const DocumentEvent& _rEvent );
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void impl_notifyEventAsync_nothrow( const DocumentEvent& _rEvent );
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};
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void SAL_CALL DocumentEventNotifier_Impl::acquire()
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{
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osl_atomic_increment( &m_refCount );
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}
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void SAL_CALL DocumentEventNotifier_Impl::release()
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{
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if ( 0 == osl_atomic_decrement( &m_refCount ) )
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delete this;
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}
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void DocumentEventNotifier_Impl::disposing()
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{
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// SYNCHRONIZED ->
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// cancel any pending asynchronous events
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::osl::ResettableMutexGuard aGuard( m_rMutex );
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if ( m_pEventBroadcaster.is() )
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{
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m_pEventBroadcaster->removeEventsForProcessor( this );
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m_pEventBroadcaster->terminate();
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//TODO: a protocol is missing how to join with the thread before
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// exit(3), to ensure the thread is no longer relying on any
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// infrastructure while that infrastructure is being shut down
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// in atexit handlers; simply calling join here leads to
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// deadlock, as this thread holds the solar mutex while the
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// other thread is typically blocked waiting for the solar mutex
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m_pEventBroadcaster.clear();
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}
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lang::EventObject aEvent( m_rDocument );
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aGuard.clear();
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// <-- SYNCHRONIZED
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m_aLegacyEventListeners.disposeAndClear( aEvent );
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m_aDocumentEventListeners.disposeAndClear( aEvent );
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// SYNCHRONIZED ->
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aGuard.reset();
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m_bDisposed = true;
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// <-- SYNCHRONIZED
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}
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void DocumentEventNotifier_Impl::onDocumentInitialized()
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{
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if ( m_bInitialized )
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throw DoubleInitializationException();
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m_bInitialized = true;
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if ( m_pEventBroadcaster.is() )
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// there are already pending asynchronous events
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m_pEventBroadcaster->launch();
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}
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void DocumentEventNotifier_Impl::impl_notifyEvent_nothrow( const DocumentEvent& _rEvent )
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{
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OSL_PRECOND( m_bInitialized,
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"DocumentEventNotifier_Impl::impl_notifyEvent_nothrow: only to be called when the document is already initialized!" );
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try
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{
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document::EventObject aLegacyEvent( _rEvent.Source, _rEvent.EventName );
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m_aLegacyEventListeners.notifyEach( &document::XEventListener::notifyEvent, aLegacyEvent );
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}
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catch(const Exception&)
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{
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DBG_UNHANDLED_EXCEPTION();
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}
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try
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{
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m_aDocumentEventListeners.notifyEach( &XDocumentEventListener::documentEventOccured, _rEvent );
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}
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catch( const Exception& )
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{
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DBG_UNHANDLED_EXCEPTION();
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}
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}
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void DocumentEventNotifier_Impl::impl_notifyEventAsync_nothrow( const DocumentEvent& _rEvent )
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{
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if ( !m_pEventBroadcaster.is() )
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{
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m_pEventBroadcaster.set(
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new ::comphelper::AsyncEventNotifier("DocumentEventNotifier"));
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if ( m_bInitialized )
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// start processing the events if and only if we (our document, respectively) are
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// already initialized
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m_pEventBroadcaster->launch();
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}
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m_pEventBroadcaster->addEvent( new DocumentEventHolder( _rEvent ), this );
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}
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void DocumentEventNotifier_Impl::processEvent( const ::comphelper::AnyEvent& _rEvent )
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{
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// beware, this is called from the notification thread
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{
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::osl::MutexGuard aGuard( m_rMutex );
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if ( m_bDisposed )
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return;
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}
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const DocumentEventHolder& rEventHolder = dynamic_cast< const DocumentEventHolder& >( _rEvent );
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impl_notifyEvent_nothrow( rEventHolder.getEventObject() );
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}
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// DocumentEventNotifier
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DocumentEventNotifier::DocumentEventNotifier( ::cppu::OWeakObject& _rBroadcasterDocument, ::osl::Mutex& _rMutex )
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:m_pImpl( new DocumentEventNotifier_Impl( _rBroadcasterDocument, _rMutex ) )
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{
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}
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DocumentEventNotifier::~DocumentEventNotifier()
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{
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}
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void DocumentEventNotifier::disposing()
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{
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m_pImpl->disposing();
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}
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void DocumentEventNotifier::onDocumentInitialized()
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{
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m_pImpl->onDocumentInitialized();
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}
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void DocumentEventNotifier::addLegacyEventListener( const Reference< document::XEventListener >& _Listener )
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{
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m_pImpl->addLegacyEventListener( _Listener );
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}
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void DocumentEventNotifier::removeLegacyEventListener( const Reference< document::XEventListener >& _Listener )
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{
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m_pImpl->removeLegacyEventListener( _Listener );
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}
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void DocumentEventNotifier::addDocumentEventListener( const Reference< XDocumentEventListener >& _Listener )
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{
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m_pImpl->addDocumentEventListener( _Listener );
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}
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void DocumentEventNotifier::removeDocumentEventListener( const Reference< XDocumentEventListener >& _Listener )
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{
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m_pImpl->removeDocumentEventListener( _Listener );
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}
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void DocumentEventNotifier::notifyDocumentEvent( const OUString& _EventName,
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const Reference< XController2 >& _ViewController, const Any& _Supplement )
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{
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m_pImpl->notifyDocumentEvent( _EventName, _ViewController, _Supplement );
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}
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void DocumentEventNotifier::notifyDocumentEventAsync( const OUString& _EventName,
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const Reference< XController2 >& _ViewController, const Any& _Supplement )
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{
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m_pImpl->notifyDocumentEventAsync( _EventName, _ViewController, _Supplement );
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}
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} // namespace dbaccess
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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