| /* |
| 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 org.odftoolkit.simple.text.list; |
| |
| import java.util.Iterator; |
| import java.util.LinkedList; |
| import java.util.NoSuchElementException; |
| |
| import org.odftoolkit.odfdom.dom.element.text.TextListElement; |
| import org.odftoolkit.odfdom.pkg.OdfElement; |
| import org.odftoolkit.odfdom.pkg.OdfFileDom; |
| import org.odftoolkit.simple.Document; |
| import org.w3c.dom.Node; |
| import org.w3c.dom.NodeList; |
| |
| /** |
| * AbstractListContainer is an abstract implementation of the ListContainer |
| * interface, with a default implementation for every method defined in ListContainer |
| * , except getListContainerElement(). A subclass must implement |
| * the abstract method getListContainerElement(). |
| * |
| * @since 0.4 |
| */ |
| public abstract class AbstractListContainer implements ListContainer { |
| |
| public List addList() { |
| return new List(this); |
| } |
| |
| public List addList(ListDecorator decorator) { |
| return new List(this, decorator); |
| } |
| |
| public void clearList() { |
| OdfElement containerElement = getListContainerElement(); |
| Node child = getListContainerElement().getFirstChild(); |
| while (child != null) { |
| if (child instanceof TextListElement) { |
| Node tmp = child; |
| child = child.getNextSibling(); |
| containerElement.removeChild(tmp); |
| } else { |
| child = child.getNextSibling(); |
| } |
| } |
| } |
| |
| public Iterator<List> getListIterator() { |
| return new SimpleListIterator(this); |
| } |
| |
| public boolean removeList(List list) { |
| OdfElement containerElement = getListContainerElement(); |
| Node child = containerElement.getFirstChild(); |
| OdfFileDom ownerDocument = (OdfFileDom) containerElement.getOwnerDocument(); |
| Document doc = (Document) ownerDocument.getDocument(); |
| while (child != null) { |
| if (child instanceof TextListElement) { |
| TextListElement listElement1 = (TextListElement) child; |
| String id1 = listElement1.getXmlIdAttribute(); |
| TextListElement listElement2 = list.getOdfElement(); |
| String id2 = listElement2.getXmlIdAttribute(); |
| if ((listElement1 == listElement2) || ((id1 != null) && (id2 != null) && (id1.equals(id2)))) { |
| doc.removeElementLinkedResource(listElement1); |
| containerElement.removeChild(child); |
| return true; |
| } |
| } |
| child = child.getNextSibling(); |
| } |
| return false; |
| } |
| |
| // default iterator to iterate list item. |
| private static class SimpleListIterator implements Iterator<List> { |
| |
| private java.util.List<List> allLists; |
| private int index; |
| private List currentList; |
| |
| public SimpleListIterator(ListContainer container) { |
| this.allLists = getLists(container.getListContainerElement().getChildNodes()); |
| } |
| |
| public boolean hasNext() { |
| return this.index < this.allLists.size(); |
| } |
| |
| public List next() { |
| if (hasNext()) { |
| this.currentList = allLists.get(index); |
| this.index++; |
| return this.currentList; |
| } else { |
| throw new NoSuchElementException(); |
| } |
| } |
| |
| public void remove() { |
| if (this.currentList == null) { |
| throw new IllegalStateException(); |
| } else { |
| this.allLists.remove(this.currentList); |
| this.currentList = null; |
| } |
| } |
| |
| private java.util.List<List> getLists(NodeList nodes) { |
| java.util.List<List> lists = new LinkedList<List>(); |
| int numberOfNodes = nodes.getLength(); |
| for (int i = 0; i < numberOfNodes; i++) { |
| Node node = nodes.item(i); |
| lists.addAll(getLists(node)); |
| } |
| return lists; |
| } |
| |
| private java.util.List<List> getLists(Node node) { |
| java.util.List<List> lists = new LinkedList<List>(); |
| if (node instanceof TextListElement) { |
| TextListElement textListElement = (TextListElement) node; |
| List list = new List(textListElement); |
| lists.add(list); |
| } else { |
| NodeList childNodes = node.getChildNodes(); |
| lists.addAll(getLists(childNodes)); |
| } |
| return lists; |
| } |
| |
| } |
| |
| } |