libreccm/ccm-cms/src/main/java/com/arsdigita/cms/ui/BaseTree.java

68 lines
2.2 KiB
Java
Executable File

/*
* Copyright (C) 2003-2004 Red Hat Inc. All Rights Reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* 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
*
*/
package com.arsdigita.cms.ui;
import com.arsdigita.bebop.PageState;
import com.arsdigita.bebop.Tree;
import com.arsdigita.bebop.event.ChangeEvent;
import com.arsdigita.bebop.event.ChangeListener;
import com.arsdigita.bebop.event.TreeExpansionEvent;
import com.arsdigita.bebop.event.TreeExpansionListener;
import com.arsdigita.bebop.tree.TreeModelBuilder;
import org.apache.log4j.Logger;
/**
* A convenience class for CMS trees.
*
* @author Justin Ross <jross@redhat.com>
* @version $Id$
*/
public class BaseTree extends Tree {
private static final Logger s_log = Logger.getLogger(BaseTree.class);
public BaseTree(final TreeModelBuilder builder) {
super(builder);
addChangeListener(new Change());
addTreeExpansionListener(new TreeExpansion());
}
private class Change implements ChangeListener {
public final void stateChanged(final ChangeEvent e) {
final PageState state = e.getPageState();
final Object key = BaseTree.this.getSelectedKey(state);
if (key != null) {
expand(key.toString(), state);
}
}
}
private class TreeExpansion implements TreeExpansionListener {
public final void treeExpanded(final TreeExpansionEvent e) {
//s_log.error("expanded");
}
public final void treeCollapsed(final TreeExpansionEvent e) {
//s_log.error("collapsed");
}
}
}