| /* |
| * Copyright (C) 2013 DroidDriver committers |
| * |
| * 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.google.android.droiddriver.finders; |
| |
| import com.google.android.droiddriver.UiElement; |
| import com.google.common.base.Preconditions; |
| |
| /** |
| * Find UiElement by using the UiElement returned by parent Finder as context |
| * for the child Finder. |
| */ |
| public class ChainFinder implements Finder { |
| private final Finder parent; |
| private final Finder child; |
| |
| protected ChainFinder(Finder parent, Finder child) { |
| this.parent = Preconditions.checkNotNull(parent); |
| this.child = Preconditions.checkNotNull(child); |
| } |
| |
| @Override |
| public String toString() { |
| return String.format("ChainFinder{%s, %s}", parent, child); |
| } |
| |
| @Override |
| public UiElement find(UiElement context) { |
| return child.find(parent.find(context)); |
| } |
| } |