| /******************************************************************************* |
| * Copyright (c) 2008, 2015 Code 9 Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * Code 9 Corporation - initial API and implementation |
| * Chris Aniszczyk <caniszczyk@gmail.com> |
| * Rafael Oliveira Nobrega <rafael.oliveira@gmail.com> - bug 242028 |
| *******************************************************************************/ |
| package org.eclipse.pde.internal.ds.ui.editor; |
| |
| import java.util.List; |
| |
| import org.eclipse.jface.viewers.IContentProvider; |
| import org.eclipse.jface.viewers.ITreeContentProvider; |
| import org.eclipse.pde.internal.core.text.IDocumentElementNode; |
| import org.eclipse.pde.internal.ds.core.IDSModel; |
| import org.eclipse.pde.internal.ds.core.IDSObject; |
| |
| public class DSContentProvider implements IContentProvider, |
| ITreeContentProvider { |
| |
| @Override |
| public Object[] getChildren(Object parentElement) { |
| if (parentElement instanceof IDSModel) { |
| return new Object[] { ((IDSModel) parentElement).getDSComponent() }; |
| } else if (parentElement instanceof IDSObject) { |
| List<IDocumentElementNode> list = ((IDSObject) parentElement).getChildNodesList(); |
| // List is never null |
| if (!list.isEmpty()) { |
| return list.toArray(); |
| } |
| } |
| return new Object[0]; |
| } |
| |
| @Override |
| public Object getParent(Object element) { |
| if (element instanceof IDSObject) { |
| return ((IDSObject) element).getParentNode(); |
| } |
| return null; |
| } |
| |
| @Override |
| public boolean hasChildren(Object element) { |
| return (getChildren(element).length > 0); |
| } |
| |
| @Override |
| public Object[] getElements(Object inputElement) { |
| return getChildren(inputElement); |
| } |
| |
| } |