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