| /************************************************************** |
| * |
| * 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_comphelper.hxx" |
| #include <comphelper/weakeventlistener.hxx> |
| #include <osl/diagnose.h> |
| |
| |
| //......................................................................... |
| namespace comphelper |
| { |
| //......................................................................... |
| |
| using namespace ::com::sun::star::uno; |
| using namespace ::com::sun::star::lang; |
| |
| //===================================================================== |
| //= OWeakListenerAdapter |
| //===================================================================== |
| //--------------------------------------------------------------------- |
| OWeakListenerAdapterBase::~OWeakListenerAdapterBase() |
| { |
| } |
| |
| //===================================================================== |
| //= OWeakEventListenerAdapter |
| //===================================================================== |
| //--------------------------------------------------------------------- |
| OWeakEventListenerAdapter::OWeakEventListenerAdapter( Reference< XWeak > _rxListener, Reference< XComponent > _rxBroadcaster ) |
| :OWeakEventListenerAdapter_Base( _rxListener, _rxBroadcaster ) |
| { |
| // add ourself as listener to the broadcaster |
| OSL_ENSURE( _rxBroadcaster.is(), "OWeakEventListenerAdapter::OWeakEventListenerAdapter: invalid broadcaster!" ); |
| if ( _rxBroadcaster.is() ) |
| { |
| osl_incrementInterlockedCount( &m_refCount ); |
| { |
| _rxBroadcaster->addEventListener( this ); |
| } |
| osl_decrementInterlockedCount( &m_refCount ); |
| OSL_ENSURE( m_refCount > 0, "OWeakEventListenerAdapter::OWeakEventListenerAdapter: oops - not to be used with implementations which hold their listeners weak!" ); |
| // the one and only reason for this adapter class (A) is to add as listener to a component (C) which |
| // holds its listeners hard, and forward all calls then to another listener (L) which is |
| // held weak by A. |
| // Now if C holds listeners weak, then we do not need A, we can add L directly to C. |
| } |
| |
| OSL_ENSURE( getListener().is(), "OWeakEventListenerAdapter::OWeakEventListenerAdapter: invalid listener (does not support the XEventListener interface)!" ); |
| } |
| |
| //--------------------------------------------------------------------- |
| void SAL_CALL OWeakEventListenerAdapter::disposing( ) |
| { |
| Reference< XComponent > xBroadcaster( getBroadcaster( ), UNO_QUERY ); |
| OSL_ENSURE( xBroadcaster.is(), "OWeakEventListenerAdapter::disposing: broadcaster is invalid in the meantime! How this?" ); |
| if ( xBroadcaster.is() ) |
| { |
| xBroadcaster->removeEventListener( this ); |
| } |
| |
| resetListener(); |
| } |
| |
| //......................................................................... |
| } // namespace comphelper |
| //......................................................................... |
| |
| |