org.efaps.ui.wicket.components.menutree.AjaxRemoveLink Maven / Gradle / Ivy

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eFaps WebApp provides a web interface as the User Interface for eFaps which can be easily expanded and altered.

There is a newer version: 3.2.0

/*
 * Copyright 2003 - 2009 The eFaps Team
 *
 * Licensed 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.
 *
 * Revision:        $Rev:1510 $
 * Last Changed:    $Date:2007-10-18 09:35:40 -0500 (Thu, 18 Oct 2007) $
 * Last Changed By: $Author:jmox $
 */

package org.efaps.ui.wicket.components.menutree;

import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.DefaultTreeModel;

import org.apache.wicket.ajax.AjaxRequestTarget;
import org.efaps.ui.wicket.models.objects.UIMenuItem;

/**
 * This Class renders a Link which removes a Child from a MenuTree.
 *
 * @author The eFaps Team
 * @version $Id:AjaxRemoveLink.java 1510 2007-10-18 14:35:40Z jmox $
 */
public class AjaxRemoveLink
    extends AbstractAjaxLink
{
    /**
     * Needed for serialization.
     */
    private static final long serialVersionUID = 1L;

    /**
     * Construtor setting the ID and the Node of this Component.
     *
     * @param _wicketId wicketid for this component
     * @param _node     node for his component
     */
    public AjaxRemoveLink(final String _wicketId,
                          final DefaultMutableTreeNode _node)
    {
        super(_wicketId, _node);
    }

    @Override
    public void onClick(final AjaxRequestTarget _target)
    {
        final MenuTree menutree = findParent(MenuTree.class);
        final DefaultMutableTreeNode parent =
                        (DefaultMutableTreeNode) getNode().getParent();
        final DefaultMutableTreeNode selected =
                        (DefaultMutableTreeNode) menutree.getTreeState().getSelectedNodes()
                                        .iterator().next();
        boolean selectParent = false;
        if (getNode().isNodeDescendant(selected)) {
            selectParent = true;
        }
        menutree.getTreeState().selectNode(parent, true);

        ((DefaultTreeModel) menutree.getDefaultModelObject())
                        .removeNodeFromParent(getNode());

        if (selectParent) {
            menutree.getTreeState().selectNode(parent, true);
            menutree.changeContent((UIMenuItem) parent.getUserObject(), _target);
        } else {
            menutree.getTreeState().selectNode(selected, true);
            _target.addComponent(menutree.getNodeComponent(parent));
        }
        menutree.updateTree(_target);
    }
}