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Diffstat (limited to 'odk/examples/DevelopersGuide/OfficeDev/Linguistic/PropChgHelper.java')
| -rw-r--r-- | odk/examples/DevelopersGuide/OfficeDev/Linguistic/PropChgHelper.java | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/odk/examples/DevelopersGuide/OfficeDev/Linguistic/PropChgHelper.java b/odk/examples/DevelopersGuide/OfficeDev/Linguistic/PropChgHelper.java new file mode 100644 index 000000000..46fcff061 --- /dev/null +++ b/odk/examples/DevelopersGuide/OfficeDev/Linguistic/PropChgHelper.java @@ -0,0 +1,193 @@ +/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/************************************************************************* + * + * The Contents of this file are made available subject to the terms of + * the BSD license. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of Sun Microsystems, Inc. nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR + * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE + * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + *************************************************************************/ + +import com.sun.star.linguistic2.XLinguServiceEventBroadcaster; +import com.sun.star.linguistic2.XLinguServiceEventListener; +import com.sun.star.linguistic2.LinguServiceEvent; +import com.sun.star.beans.XPropertySet; +import com.sun.star.beans.XPropertyChangeListener; +import com.sun.star.beans.PropertyChangeEvent; +import com.sun.star.lang.EventObject; +import com.sun.star.uno.XInterface; + +import java.util.ArrayList; + +public class PropChgHelper implements + XPropertyChangeListener, + XLinguServiceEventBroadcaster +{ + private final XInterface xEvtSource; + private final String[] aPropNames; + private XPropertySet xPropSet; + private final ArrayList<XLinguServiceEventListener> aLngSvcEvtListeners; + + public PropChgHelper( + XInterface xEvtSource, + String[] aPropNames ) + { + this.xEvtSource = xEvtSource; + this.aPropNames = aPropNames; + xPropSet = null; + aLngSvcEvtListeners = new ArrayList<XLinguServiceEventListener>(); + } + + public XInterface GetEvtSource() + { + return xEvtSource; + } + + public XPropertySet GetPropSet() + { + return xPropSet; + } + + + + public void LaunchEvent( LinguServiceEvent aEvt ) + { + int nCnt = aLngSvcEvtListeners.size(); + for (int i = 0; i < nCnt; ++i) + { + XLinguServiceEventListener xLstnr = + aLngSvcEvtListeners.get(i); + if (xLstnr != null) + xLstnr.processLinguServiceEvent( aEvt ); + } + } + + public void AddAsListenerTo( XPropertySet xPropertySet ) + { + // do not listen any longer to the old property set (if any) + RemoveAsListener(); + + // set new property set to be used and register as listener to it + xPropSet = xPropertySet; + if (xPropSet != null) + { + int nLen = aPropNames.length; + for (int i = 0; i < nLen; ++i) + { + if (aPropNames[i].length() != 0) + { + try { + xPropSet.addPropertyChangeListener( + aPropNames[i], this ); + } + catch( Exception e ) { + } + } + } + } + } + + private void RemoveAsListener() + { + if (xPropSet != null) + { + int nLen = aPropNames.length; + for (int i = 0; i < nLen; ++i) + { + if (aPropNames[i].length() != 0) + { + try { + xPropSet.removePropertyChangeListener( + aPropNames[i], this ); + } + catch( Exception e ) { + } + } + } + + xPropSet = null; + } + } + + // __________ interface methods __________ + + + // XEventListener + + public void disposing( EventObject aSource ) + throws com.sun.star.uno.RuntimeException + { + if (aSource.Source == xPropSet) + { + RemoveAsListener(); + } + } + + + // XPropertyChangeListener + + public void propertyChange( PropertyChangeEvent aEvt ) + throws com.sun.star.uno.RuntimeException + { + // will be overridden in derived classes + } + + + // XLinguServiceEventBroadcaster + + public boolean addLinguServiceEventListener( + XLinguServiceEventListener xListener ) + throws com.sun.star.uno.RuntimeException + { + boolean bRes = false; + if (xListener != null) + { + bRes = aLngSvcEvtListeners.add( xListener ); + } + return bRes; + } + + public boolean removeLinguServiceEventListener( + XLinguServiceEventListener xListener ) + throws com.sun.star.uno.RuntimeException + { + boolean bRes = false; + if (xListener != null) + { + int nIdx = aLngSvcEvtListeners.indexOf( xListener ); + if (nIdx != -1) + { + aLngSvcEvtListeners.remove( nIdx ); + bRes = true; + } + } + return bRes; + } +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |