X-Git-Url: http://secure.phpeclipse.com diff --git a/net.sourceforge.phpeclipse.ui/src/net/sourceforge/phpeclipse/xml/ui/internal/outline/XMLOutlineContentProvider.java b/net.sourceforge.phpeclipse.ui/src/net/sourceforge/phpeclipse/xml/ui/internal/outline/XMLOutlineContentProvider.java new file mode 100644 index 0000000..4484e94 --- /dev/null +++ b/net.sourceforge.phpeclipse.ui/src/net/sourceforge/phpeclipse/xml/ui/internal/outline/XMLOutlineContentProvider.java @@ -0,0 +1,95 @@ +/* + * 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 1.3 2006-10-21 23:14:14 pombredanne Exp $ + */ + +package net.sourceforge.phpeclipse.xml.ui.internal.outline; + +import net.sourceforge.phpeclipse.xml.core.model.IXMLDocument; +import net.sourceforge.phpeclipse.xml.core.model.IXMLElement; + +import org.eclipse.jface.viewers.ITreeContentProvider; +import org.eclipse.jface.viewers.Viewer; + +/** + * 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; + } + } + } + +}