1 /* 2 * Copyright (C) 2012 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 17 package android.support.v4.view.accessibility; 18 19 import android.os.Bundle; 20 import android.view.accessibility.AccessibilityNodeInfo; 21 import android.view.accessibility.AccessibilityNodeProvider; 22 23 import java.util.List; 24 25 /** 26 * JellyBean specific AccessibilityNodeProvider API implementation. 27 */ 28 class AccessibilityNodeProviderCompatJellyBean { 29 interface AccessibilityNodeInfoBridge { createAccessibilityNodeInfo(int virtualViewId)30 public Object createAccessibilityNodeInfo(int virtualViewId); performAction(int virtualViewId, int action, Bundle arguments)31 public boolean performAction(int virtualViewId, int action, Bundle arguments); findAccessibilityNodeInfosByText(String text, int virtualViewId)32 public List<Object> findAccessibilityNodeInfosByText(String text, 33 int virtualViewId); 34 } 35 newAccessibilityNodeProviderBridge( final AccessibilityNodeInfoBridge bridge)36 public static Object newAccessibilityNodeProviderBridge( 37 final AccessibilityNodeInfoBridge bridge) { 38 return new AccessibilityNodeProvider() { 39 @Override 40 public AccessibilityNodeInfo createAccessibilityNodeInfo(int virtualViewId) { 41 return (AccessibilityNodeInfo) bridge.createAccessibilityNodeInfo(virtualViewId); 42 } 43 44 @Override 45 @SuppressWarnings("unchecked") 46 public List<AccessibilityNodeInfo> findAccessibilityNodeInfosByText( 47 String text, int virtualViewId) { 48 // Use some voodoo to avoid creating intermediary instances. 49 return (List<AccessibilityNodeInfo>) (List<?>) 50 bridge.findAccessibilityNodeInfosByText(text, virtualViewId); 51 } 52 53 @Override 54 public boolean performAction(int virtualViewId, int action, Bundle arguments) { 55 return bridge.performAction(virtualViewId, action, arguments); 56 } 57 }; 58 } 59 } 60