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 io.appium.droiddriver.uiautomation; 18 19 import android.annotation.TargetApi; 20 import android.app.Instrumentation; 21 import android.app.UiAutomation; 22 import android.view.accessibility.AccessibilityNodeInfo; 23 24 import io.appium.droiddriver.base.DroidDriverContext; 25 import io.appium.droiddriver.exceptions.UnrecoverableException; 26 27 @TargetApi(18) 28 public class UiAutomationContext extends 29 DroidDriverContext<AccessibilityNodeInfo, UiAutomationElement> { 30 private final UiAutomation uiAutomation; 31 UiAutomationContext(Instrumentation instrumentation, UiAutomationDriver driver)32 public UiAutomationContext(Instrumentation instrumentation, UiAutomationDriver driver) { 33 super(instrumentation, driver); 34 this.uiAutomation = instrumentation.getUiAutomation(); 35 } 36 37 @Override getDriver()38 public UiAutomationDriver getDriver() { 39 return (UiAutomationDriver) super.getDriver(); 40 } 41 42 public interface UiAutomationCallable<T> { call(UiAutomation uiAutomation)43 T call(UiAutomation uiAutomation); 44 } 45 46 /** 47 * Wraps calls to UiAutomation API. Currently supports fail-fast if 48 * UiAutomation throws IllegalStateException, which occurs when the connection 49 * to UiAutomation service is lost. 50 */ callUiAutomation(UiAutomationCallable<T> uiAutomationCallable)51 public <T> T callUiAutomation(UiAutomationCallable<T> uiAutomationCallable) { 52 try { 53 return uiAutomationCallable.call(uiAutomation); 54 } catch (IllegalStateException e) { 55 throw new UnrecoverableException(e); 56 } 57 } 58 } 59