001 /*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements. See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership. The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License. You may obtain a copy of the License at
009 *
010 * http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing,
013 * software distributed under the License is distributed on an
014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 * KIND, either express or implied. See the License for the
016 * specific language governing permissions and limitations
017 * under the License.
018 */
019
020 package org.apache.myfaces.tobago.event;
021
022 /*
023 * Created 14.02.2003 13:40:19.
024 * $Id: DefaultTreeActionListener.java 1368577 2012-08-02 16:20:31Z lofwyr $
025 */
026
027 import org.apache.commons.logging.Log;
028 import org.apache.commons.logging.LogFactory;
029 import org.apache.myfaces.tobago.component.UITreeOld;
030 import org.apache.myfaces.tobago.context.ResourceManagerUtil;
031 import org.apache.myfaces.tobago.model.TreeState;
032
033 import javax.faces.component.UIComponent;
034 import javax.faces.component.UIPanel;
035 import javax.faces.context.FacesContext;
036 import javax.faces.event.AbortProcessingException;
037 import javax.faces.event.ActionEvent;
038 import javax.faces.event.ActionListener;
039 import javax.swing.tree.DefaultMutableTreeNode;
040 import javax.swing.tree.MutableTreeNode;
041
042 public class DefaultTreeActionListener implements ActionListener {
043
044 private static final Log LOG = LogFactory.getLog(DefaultTreeActionListener.class);
045
046 protected DefaultMutableTreeNode create(FacesContext facesContext) {
047 String label = ResourceManagerUtil.getPropertyNotNull(facesContext, "tobago", "treeNodeNew");
048 return new DefaultMutableTreeNode(label);
049 }
050
051 protected DefaultMutableTreeNode copy(DefaultMutableTreeNode node) {
052 return new DefaultMutableTreeNode(node.getUserObject());
053 }
054
055 public void processAction(ActionEvent actionEvent) throws AbortProcessingException {
056
057 FacesContext facesContext = FacesContext.getCurrentInstance();
058 UIComponent component = actionEvent.getComponent().getParent();
059 if (component instanceof UIPanel) {
060 // component is toolbar
061 component = component.getParent();
062 }
063 if (!(component instanceof UITreeOld)) {
064 LOG.error("No tree found!");
065 return;
066 }
067
068 UITreeOld tree = (UITreeOld) component;
069 TreeState treeState = tree.getState();
070 DefaultMutableTreeNode marker = treeState.getMarker();
071 String command = actionEvent.getComponent().getId();
072
073 if (LOG.isDebugEnabled()) {
074 LOG.debug("marker " + marker);
075 LOG.debug("lastMarker " + treeState.getLastMarker());
076 LOG.debug("root " + tree.getValue());
077 LOG.debug("command " + command);
078 LOG.debug("lastCommand " + treeState.getLastCommand());
079 }
080 if (marker != null) {
081 boolean isRoot = tree.getValue().equals(marker);
082 if (UITreeOld.COMMAND_NEW.equals(command)) {
083 treeState.commandNew(create(facesContext));
084 } else if (UITreeOld.COMMAND_DELETE.equals(command)) {
085 if (!isRoot) {
086 marker.removeFromParent();
087 }
088 treeState.setLastMarker(null);
089 treeState.setLastCommand(null);
090 } else if (UITreeOld.COMMAND_CUT.equals(command)) {
091 if (!isRoot) {
092 treeState.setLastMarker(marker);
093 treeState.setLastCommand(command);
094 }
095 } else if (UITreeOld.COMMAND_COPY.equals(command)) {
096 treeState.setLastMarker(marker);
097 treeState.setLastCommand(command);
098 } else if (UITreeOld.COMMAND_PASTE.equals(command)) {
099 if (treeState.getLastMarker() != null) {
100 if (UITreeOld.COMMAND_CUT.equals(treeState.getLastCommand())) {
101 marker.insert(treeState.getLastMarker(), 0);
102 } else if (UITreeOld.COMMAND_COPY.equals(treeState.getLastCommand())) {
103 marker.insert(copy(treeState.getLastMarker()), 0);
104 }
105 treeState.setLastMarker(null);
106 treeState.setLastCommand(null);
107 }
108 } else if (UITreeOld.COMMAND_MOVE_UP.equals(command)) {
109 if (!isRoot) {
110 MutableTreeNode node = marker;
111 MutableTreeNode parent = (MutableTreeNode) node.getParent();
112 int index = parent.getIndex(node);
113 index = Math.max(index - 1, 0);
114 parent.insert(node, index);
115 }
116 treeState.setLastMarker(null);
117 treeState.setLastCommand(null);
118 } else if (UITreeOld.COMMAND_MOVE_DOWN.equals(command)) {
119 if (!isRoot) {
120 MutableTreeNode node = marker;
121 MutableTreeNode parent = (MutableTreeNode) node.getParent();
122 int index = parent.getIndex(node);
123 index = Math.min(index + 1, parent.getChildCount() - 1);
124 parent.insert(node, index);
125 }
126 treeState.setLastMarker(null);
127 treeState.setLastCommand(null);
128 }
129 }
130 }
131 }