1 /* 2 * Copyright (C) 2013 DroidDriver committers 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.google.android.droiddriver.uiautomation; 18 19 import android.app.Instrumentation; 20 import android.app.UiAutomation; 21 import android.view.accessibility.AccessibilityNodeInfo; 22 23 import com.google.android.droiddriver.base.DroidDriverContext; 24 import com.google.android.droiddriver.exceptions.UnrecoverableException; 25 26 public class UiAutomationContext extends 27 DroidDriverContext<AccessibilityNodeInfo, UiAutomationElement> { 28 private final UiAutomation uiAutomation; 29 30 public UiAutomationContext(Instrumentation instrumentation, UiAutomationDriver driver) { 31 super(instrumentation, driver); 32 this.uiAutomation = instrumentation.getUiAutomation(); 33 } 34 35 @Override 36 public UiAutomationDriver getDriver() { 37 return (UiAutomationDriver) super.getDriver(); 38 } 39 40 public interface UiAutomationCallable<T> { 41 T call(UiAutomation uiAutomation); 42 } 43 44 /** 45 * Wraps calls to UiAutomation API. Currently supports fail-fast if 46 * UiAutomation throws IllegalStateException, which occurs when the connection 47 * to UiAutomation service is lost. 48 */ 49 public <T> T callUiAutomation(UiAutomationCallable<T> uiAutomationCallable) { 50 try { 51 return uiAutomationCallable.call(uiAutomation); 52 } catch (IllegalStateException e) { 53 throw new UnrecoverableException(e); 54 } 55 } 56 } 57
