1/* 2 * Copyright (C) 2011 The Android Open Source Project 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 17package android.support.v4.view.accessibility; 18 19import android.accessibilityservice.AccessibilityServiceInfo; 20import android.view.accessibility.AccessibilityManager; 21import android.view.accessibility.AccessibilityManager.AccessibilityStateChangeListener; 22 23import java.util.List; 24 25/** 26 * ICS specific AccessibilityManager API implementation. 27 */ 28class AccessibilityManagerCompatIcs { 29 30 public static class AccessibilityStateChangeListenerWrapper 31 implements AccessibilityStateChangeListener { 32 Object mListener; 33 AccessibilityStateChangeListenerBridge mListenerBridge; 34 35 public AccessibilityStateChangeListenerWrapper(Object listener, 36 AccessibilityStateChangeListenerBridge listenerBridge) { 37 mListener = listener; 38 mListenerBridge = listenerBridge; 39 } 40 41 @Override 42 public int hashCode() { 43 return mListener == null ? 0 : mListener.hashCode(); 44 } 45 46 @Override 47 public boolean equals(Object o) { 48 if (this == o) { 49 return true; 50 } 51 if (o == null || getClass() != o.getClass()) { 52 return false; 53 } 54 AccessibilityStateChangeListenerWrapper other = 55 (AccessibilityStateChangeListenerWrapper) o; 56 return mListener == null ? other.mListener == null : mListener.equals(other.mListener); 57 } 58 59 @Override 60 public void onAccessibilityStateChanged(boolean enabled) { 61 mListenerBridge.onAccessibilityStateChanged(enabled); 62 } 63 } 64 65 interface AccessibilityStateChangeListenerBridge { 66 void onAccessibilityStateChanged(boolean enabled); 67 } 68 69 public static boolean addAccessibilityStateChangeListener(AccessibilityManager manager, 70 AccessibilityStateChangeListenerWrapper listener) { 71 return manager.addAccessibilityStateChangeListener(listener); 72 } 73 74 public static boolean removeAccessibilityStateChangeListener(AccessibilityManager manager, 75 AccessibilityStateChangeListenerWrapper listener) { 76 return manager.removeAccessibilityStateChangeListener(listener); 77 } 78 79 public static List<AccessibilityServiceInfo> getEnabledAccessibilityServiceList( 80 AccessibilityManager manager,int feedbackTypeFlags) { 81 return manager.getEnabledAccessibilityServiceList(feedbackTypeFlags); 82 } 83 84 public static List<AccessibilityServiceInfo> getInstalledAccessibilityServiceList( 85 AccessibilityManager manager) { 86 return manager.getInstalledAccessibilityServiceList(); 87 } 88 89 public static boolean isTouchExplorationEnabled(AccessibilityManager manager) { 90 return manager.isTouchExplorationEnabled(); 91 } 92} 93