/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to you 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.
*/
package pivot.wtk.text.test;
import java.util.Comparator;
import java.util.Iterator;
import pivot.collections.ArrayList;
import pivot.collections.List;
import pivot.collections.ListListener;
import pivot.collections.Sequence;
import pivot.util.ImmutableIterator;
import pivot.util.ListenerList;
import pivot.wtk.text.Element;
import pivot.wtk.text.ElementListener;
import pivot.wtk.text.Node;
import pivot.wtk.text.TextNode;
public class ElementAdapter extends NodeAdapter implements List<NodeAdapter> {
private ElementListener elementListener = new ElementListener() {
public void nodeInserted(Element element, int index) {
// Insert/attach node
Node node = element.get(index);
NodeAdapter nodeAdapter = createNodeAdapter(node);
nodeAdapters.insert(nodeAdapter, index);
nodeAdapter.setParent(ElementAdapter.this);
listListeners.itemInserted(ElementAdapter.this, index);
}
public void nodesRemoved(Element element, int index, Sequence<Node> nodes) {
// Remove/detach nodes
Sequence<NodeAdapter> removed = nodeAdapters.remove(index, nodes.getLength());
for (int i = 0, n = removed.getLength(); i < n; i++) {
NodeAdapter nodeAdapter = removed.get(i);
nodeAdapter.setParent(null);
}
listListeners.itemsRemoved(ElementAdapter.this, index, removed);
}
};
private String text;
private ArrayList<NodeAdapter> nodeAdapters = new ArrayList<NodeAdapter>();
private ListListenerList<NodeAdapter> listListeners = new ListListenerList<NodeAdapter>();
public ElementAdapter(Element element) {
super(element);
if (element == null) {
text = null;
} else {
String elementClassName = element.getClass().getName();
text = "<" + elementClassName.substring(elementClassName.lastIndexOf('.') + 1) + ">";
}
}
@Override
protected void setParent(ElementAdapter parent) {
super.setParent(parent);
Element element = (Element)getNode();
if (parent == null) {
// Remove all adapters
Sequence<NodeAdapter> removed = nodeAdapters.remove(0, nodeAdapters.getLength());
for (int i = 0, n = removed.getLength(); i < n; i++) {
NodeAdapter nodeAdapter = removed.get(i);
nodeAdapter.setParent(null);
}
element.getElementListeners().remove(elementListener);
} else {
// Build adapter list
for (Node node : element) {
NodeAdapter nodeAdapter = createNodeAdapter(node);
nodeAdapters.add(nodeAdapter);
nodeAdapter.setParent(this);
}
element.getElementListeners().add(elementListener);
}
}
public String getText() {
return text;
}
public int add(NodeAdapter nodeAdapter) {
throw new UnsupportedOperationException();
}
public void insert(NodeAdapter nodeAdapter, int index) {
throw new UnsupportedOperationException();
}
public int remove(NodeAdapter nodeAdapter) {
throw new UnsupportedOperationException();
}
public Sequence<NodeAdapter> remove(int index, int count) {
throw new UnsupportedOperationException();
}
public void clear() {
throw new UnsupportedOperationException();
}
public NodeAdapter update(int index, NodeAdapter nodeAdapter) {
throw new UnsupportedOperationException();
}
public NodeAdapter get(int index) {
return nodeAdapters.get(index);
}
public int indexOf(NodeAdapter nodeAdapter) {
return nodeAdapters.indexOf(nodeAdapter);
}
public int getLength() {
return nodeAdapters.getLength();
}
public Comparator<NodeAdapter> getComparator() {
return null;
}
public void setComparator(Comparator<NodeAdapter> comparator) {
throw new UnsupportedOperationException();
}
public ListenerList<ListListener<NodeAdapter>> getListListeners() {
return listListeners;
}
public Iterator<NodeAdapter> iterator() {
return new ImmutableIterator<NodeAdapter>(nodeAdapters.iterator());
}
protected void update(int index) {
listListeners.itemUpdated(this, index, nodeAdapters.get(index));
}
private static NodeAdapter createNodeAdapter(Node node) {
NodeAdapter nodeAdapter;
if (node instanceof Element) {
nodeAdapter = new ElementAdapter((Element)node);
} else if (node instanceof TextNode) {
nodeAdapter = new TextNodeAdapter((TextNode)node);
} else {
throw new IllegalArgumentException("Unsupported node type.");
}
return nodeAdapter;
}
}