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/*************************************************************************
*
* $RCSfile: AccessibilityNode.java,v $
*
* $Revision: 1.2 $
*
* last change: $Author: obr $ $Date: 2003/09/19 09:21:39 $
*
* The Contents of this file are made available subject to the terms of
* either of the following licenses
*
* - GNU Lesser General Public License Version 2.1
* - Sun Industry Standards Source License Version 1.1
*
* Sun Microsystems Inc., October, 2000
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2000 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
*
* Sun Industry Standards Source License Version 1.1
* =================================================
* The contents of this file are subject to the Sun Industry Standards
* Source License Version 1.1 (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.openoffice.org/license.html.
*
* Software provided under this License is provided on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
* See the License for the specific provisions governing your rights and
* obligations concerning the Software.
*
* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
*
* Copyright: 2000 by Sun Microsystems, Inc.
*
* All Rights Reserved.
*
* Contributor(s): _______________________________________
*
*
************************************************************************/
package org.openoffice.accessibility.awb.tree;
import org.openoffice.accessibility.misc.AccessibleEventMulticaster;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.SwingUtilities;
import com.sun.star.accessibility.AccessibleEventId;
import com.sun.star.accessibility.AccessibleEventObject;
import com.sun.star.accessibility.XAccessible;
import com.sun.star.accessibility.XAccessibleContext;
import com.sun.star.accessibility.XAccessibleEventBroadcaster;
import com.sun.star.accessibility.XAccessibleEventListener;
import com.sun.star.uno.UnoRuntime;
class AccessibilityNode extends DefaultMutableTreeNode implements XAccessible,
XAccessibleEventListener, XAccessibleEventBroadcaster {
protected AccessibilityModel treeModel;
protected XAccessibleContext unoAccessibleContext;
private XAccessibleEventListener listener;
public AccessibilityNode(AccessibilityModel treeModel) {
this.treeModel = treeModel;
}
protected void finalize() throws java.lang.Throwable {
if (userObject != null) {
treeModel.removeNode(userObject);
}
}
/** Sets the XAccessibleContext object of this node */
public void setAccessibleContext(XAccessibleContext xAccessibleContext) {
unoAccessibleContext = xAccessibleContext;
}
/** Returns the XAccessibleContext object of this node */
public XAccessibleContext getAccessibleContext() {
return unoAccessibleContext;
}
/** Attaches or Detaches the itself as listener to unoAccessibleContext */
protected void setAttached(boolean attach) {
XAccessibleContext xAccessibleContext = unoAccessibleContext;
if (xAccessibleContext != null) {
try {
XAccessibleEventBroadcaster xAccessibleEventBroadcaster =
(XAccessibleEventBroadcaster) UnoRuntime.queryInterface(
XAccessibleEventBroadcaster.class, xAccessibleContext);
if (xAccessibleEventBroadcaster != null) {
if (attach) {
xAccessibleEventBroadcaster.addEventListener(this);
} else {
xAccessibleEventBroadcaster.removeEventListener(this);
}
}
} catch (com.sun.star.uno.RuntimeException e) {
// FIXME: error message !
}
}
}
public void disposing(com.sun.star.lang.EventObject eventObject) {
XAccessibleEventListener listener = this.listener;
if (listener != null) {
listener.disposing(eventObject);
}
treeModel.removeNode(userObject);
userObject = null;
unoAccessibleContext = null;
// FIXME: mark the object as being disposed in the tree view !
}
protected void handleChildRemoved(XAccessible xAccessible) {
final AccessibilityNode node = treeModel.findNode(xAccessible);
if (node != null) {
SwingUtilities.invokeLater(new java.lang.Runnable() {
public void run() {
treeModel.removeNodeFromParent(node);
}
});
}
}
protected void handleChildAdded(XAccessible xAccessible) {
final AccessibilityNode parent = this;
final AccessibilityNode node = treeModel.createNode(xAccessible);
if (node != null) {
SwingUtilities.invokeLater(new java.lang.Runnable() {
public void run() {
try {
XAccessibleContext xAC = node.getAccessibleContext();
if (xAC != null) {
treeModel.insertNodeInto(node, parent,
xAC.getAccessibleIndexInParent());
}
} catch (com.sun.star.uno.RuntimeException e) {
// FIXME: output
}
}
});
}
}
public void notifyEvent(AccessibleEventObject accessibleEventObject) {
if (accessibleEventObject.EventId == AccessibleEventId.CHILD) {
XAccessible xAccessible = (XAccessible) UnoRuntime.queryInterface(
XAccessible.class, accessibleEventObject.OldValue);
if (xAccessible != null) {
handleChildRemoved(xAccessible);
}
xAccessible = (XAccessible) UnoRuntime.queryInterface(
XAccessible.class, accessibleEventObject.NewValue);
if (xAccessible != null) {
handleChildAdded(xAccessible);
}
}
XAccessibleEventListener listener = this.listener;
if (listener != null) {
listener.notifyEvent(accessibleEventObject);
}
}
public synchronized void addEventListener(com.sun.star.accessibility.XAccessibleEventListener xAccessibleEventListener) {
listener = AccessibleEventMulticaster.add(listener, xAccessibleEventListener);
}
public synchronized void removeEventListener(com.sun.star.accessibility.XAccessibleEventListener xAccessibleEventListener) {
listener = AccessibleEventMulticaster.remove(listener, xAccessibleEventListener);
}
}
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