193 lines
6 KiB
Java
193 lines
6 KiB
Java
/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*************************************************************************
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*
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* The Contents of this file are made available subject to the terms of
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* the BSD license.
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*
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* Copyright 2000, 2010 Oracle and/or its affiliates.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of Sun Microsystems, Inc. nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
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* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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* USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*************************************************************************/
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import com.sun.star.linguistic2.XLinguServiceEventBroadcaster;
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import com.sun.star.linguistic2.XLinguServiceEventListener;
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import com.sun.star.linguistic2.LinguServiceEvent;
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import com.sun.star.beans.XPropertySet;
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import com.sun.star.beans.XPropertyChangeListener;
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import com.sun.star.beans.PropertyChangeEvent;
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import com.sun.star.lang.EventObject;
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import com.sun.star.uno.XInterface;
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import java.util.ArrayList;
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public class PropChgHelper implements
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XPropertyChangeListener,
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XLinguServiceEventBroadcaster
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{
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private final XInterface xEvtSource;
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private final String[] aPropNames;
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private XPropertySet xPropSet;
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private final ArrayList<XLinguServiceEventListener> aLngSvcEvtListeners;
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public PropChgHelper(
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XInterface xEvtSource,
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String[] aPropNames )
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{
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this.xEvtSource = xEvtSource;
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this.aPropNames = aPropNames;
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xPropSet = null;
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aLngSvcEvtListeners = new ArrayList<XLinguServiceEventListener>();
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}
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public XInterface GetEvtSource()
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{
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return xEvtSource;
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}
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public XPropertySet GetPropSet()
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{
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return xPropSet;
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}
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public void LaunchEvent( LinguServiceEvent aEvt )
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{
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int nCnt = aLngSvcEvtListeners.size();
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for (int i = 0; i < nCnt; ++i)
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{
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XLinguServiceEventListener xLstnr =
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aLngSvcEvtListeners.get(i);
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if (xLstnr != null)
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xLstnr.processLinguServiceEvent( aEvt );
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}
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}
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public void AddAsListenerTo( XPropertySet xPropertySet )
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{
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// do not listen any longer to the old property set (if any)
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RemoveAsListener();
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// set new property set to be used and register as listener to it
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xPropSet = xPropertySet;
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if (xPropSet != null)
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{
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int nLen = aPropNames.length;
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for (int i = 0; i < nLen; ++i)
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{
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if (aPropNames[i].length() != 0)
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{
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try {
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xPropSet.addPropertyChangeListener(
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aPropNames[i], this );
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}
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catch( Exception e ) {
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}
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}
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}
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}
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}
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private void RemoveAsListener()
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{
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if (xPropSet != null)
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{
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int nLen = aPropNames.length;
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for (int i = 0; i < nLen; ++i)
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{
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if (aPropNames[i].length() != 0)
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{
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try {
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xPropSet.removePropertyChangeListener(
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aPropNames[i], this );
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}
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catch( Exception e ) {
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}
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}
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}
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xPropSet = null;
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}
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}
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// __________ interface methods __________
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// XEventListener
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public void disposing( EventObject aSource )
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throws com.sun.star.uno.RuntimeException
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{
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if (aSource.Source == xPropSet)
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{
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RemoveAsListener();
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}
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}
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// XPropertyChangeListener
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public void propertyChange( PropertyChangeEvent aEvt )
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throws com.sun.star.uno.RuntimeException
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{
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// will be overridden in derived classes
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}
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// XLinguServiceEventBroadcaster
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public boolean addLinguServiceEventListener(
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XLinguServiceEventListener xListener )
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throws com.sun.star.uno.RuntimeException
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{
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boolean bRes = false;
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if (xListener != null)
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{
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bRes = aLngSvcEvtListeners.add( xListener );
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}
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return bRes;
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}
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public boolean removeLinguServiceEventListener(
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XLinguServiceEventListener xListener )
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throws com.sun.star.uno.RuntimeException
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{
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boolean bRes = false;
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if (xListener != null)
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{
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int nIdx = aLngSvcEvtListeners.indexOf( xListener );
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if (nIdx != -1)
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{
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aLngSvcEvtListeners.remove( nIdx );
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bRes = true;
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}
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}
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return bRes;
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}
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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