--- /dev/null
+/*
+ * Copyright (c) 2004 Christopher Lenz and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Common Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/cpl-v10.html
+ *
+ * Contributors:
+ * Christopher Lenz - initial API and implementation
+ *
+ * $Id: XMLOutlineContentProvider.java,v 1.1 2004-09-02 18:28:05 jsurfer Exp $
+ */
+
+package net.sourceforge.phpeclipse.xml.ui.internal.outline;
+
+import org.eclipse.jface.viewers.ITreeContentProvider;
+import org.eclipse.jface.viewers.Viewer;
+
+import net.sourceforge.phpeclipse.xml.core.model.IXMLDocument;
+import net.sourceforge.phpeclipse.xml.core.model.IXMLElement;
+
+/**
+ * Content provider for the XML outline page.
+ */
+public class XMLOutlineContentProvider implements ITreeContentProvider {
+
+ // Instance Variables ------------------------------------------------------
+
+ /**
+ * The parsed XML document.
+ */
+ private IXMLDocument document;
+
+ // ITreeContentProvider Implementation -------------------------------------
+
+ /*
+ * ITreeContentProvider#getChildren(Object)
+ */
+ public Object[] getChildren(Object parentElement) {
+ if (parentElement instanceof IXMLElement) {
+ return ((IXMLElement) parentElement).getChildren();
+ }
+ return new Object[0];
+ }
+
+ /*
+ * @see ITreeContentProvider#getParent(Object)
+ */
+ public Object getParent(Object element) {
+ if (element instanceof IXMLElement) {
+ return ((IXMLElement) element).getParent();
+ }
+ return null;
+ }
+
+ /*
+ * @see ITreeContentProvider#hasChildren(Object)
+ */
+ public boolean hasChildren(Object element) {
+ return getChildren(element).length > 0;
+ }
+
+ /*
+ * @see org.eclipse.jface.viewers.IStructuredContentProvider#getElements(Object)
+ */
+ public Object[] getElements(Object inputElement) {
+ if ((document != null) && (document.getRoot() != null)) {
+ return new Object[] { document.getRoot() };
+ }
+ return new Object[0];
+ }
+
+ /*
+ * @see org.eclipse.jface.viewers.IContentProvider#dispose()
+ */
+ public void dispose() {
+ document = null;
+ }
+
+ /*
+ * @see org.eclipse.jface.viewers.IContentProvider#inputChanged(Viewer, Object, Object)
+ */
+ public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
+ if (oldInput != newInput) {
+ if (oldInput instanceof IXMLDocument) {
+ document = null;
+ }
+ if (newInput instanceof IXMLDocument) {
+ document = (IXMLDocument) newInput;
+ }
+ }
+ }
+
+}