| /******************************************************************************* |
| * Copyright (c) 2005-2007 Orangevolt (www.orangevolt.com) |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * Orangevolt (www.orangevolt.com) - XSLT support |
| * Jesper Steen Moller - refactored Orangevolt XSLT support into WST |
| * |
| *******************************************************************************/ |
| package org.eclipse.wst.xml.xpath.ui.views; |
| |
| import org.eclipse.jface.viewers.ITreeContentProvider; |
| import org.eclipse.jface.viewers.Viewer; |
| import org.w3c.dom.Document; |
| import org.w3c.dom.Element; |
| import org.w3c.dom.Node; |
| import org.w3c.dom.NodeList; |
| |
| public class DOMTreeContentProvider implements ITreeContentProvider { |
| Node node = null; |
| |
| static final Object[] NOTHING = new Object[0]; |
| |
| private Object[] nodeList2Array(NodeList nl) { |
| Object[] oa = new Object[nl.getLength()]; |
| for (int i = 0; i < nl.getLength(); i++) { |
| oa[i] = nl.item(i); |
| } |
| |
| return oa; |
| } |
| |
| public Object[] getChildren(Object parentElement) { |
| return parentElement == null ? NOTHING |
| : nodeList2Array(((Node) parentElement).getChildNodes()); |
| } |
| |
| public Object getParent(Object element) { |
| return ((Node) element).getParentNode(); |
| } |
| |
| public boolean hasChildren(Object element) { |
| return ((Node) element).hasChildNodes(); |
| } |
| |
| public Object[] getElements(Object inputElement) { |
| return getChildren(inputElement); |
| } |
| |
| public void dispose() { |
| } |
| |
| public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { |
| if (newInput instanceof Element) { |
| node = (Element) newInput; |
| } else if (newInput instanceof Document) { |
| node = ((Document) newInput).getDocumentElement(); |
| } |
| } |
| } |