| /* |
| * Copyright (C) 2012 The Android Open Source Project |
| * |
| * Licensed 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 com.android.uiautomator.tree; |
| |
| |
| import org.eclipse.jface.viewers.ITreeContentProvider; |
| import org.eclipse.jface.viewers.Viewer; |
| |
| public class BasicTreeNodeContentProvider implements ITreeContentProvider { |
| |
| private static final Object[] EMPTY_ARRAY = {}; |
| |
| @Override |
| public void dispose() { |
| } |
| |
| @Override |
| public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { |
| } |
| |
| @Override |
| public Object[] getElements(Object inputElement) { |
| return getChildren(inputElement); |
| } |
| |
| @Override |
| public Object[] getChildren(Object parentElement) { |
| if (parentElement instanceof BasicTreeNode) { |
| return ((BasicTreeNode)parentElement).getChildren(); |
| } |
| return EMPTY_ARRAY; |
| } |
| |
| @Override |
| public Object getParent(Object element) { |
| if (element instanceof BasicTreeNode) { |
| return ((BasicTreeNode)element).getParent(); |
| } |
| return null; |
| } |
| |
| @Override |
| public boolean hasChildren(Object element) { |
| if (element instanceof BasicTreeNode) { |
| return ((BasicTreeNode) element).hasChild(); |
| } |
| return false; |
| } |
| } |