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
17package android.support.v4.view;
18
19import android.os.Bundle;
20import android.view.View;
21import android.view.View.AccessibilityDelegate;
22import android.view.ViewGroup;
23import android.view.accessibility.AccessibilityEvent;
24import android.view.accessibility.AccessibilityNodeInfo;
25import android.view.accessibility.AccessibilityNodeProvider;
26
27/**
28 * JellyBean specific AccessibilityDelegate API implementation.
29 */
30class AccessibilityDelegateCompatJellyBean {
31
32    public interface AccessibilityDelegateBridgeJellyBean {
33        public boolean dispatchPopulateAccessibilityEvent(View host, AccessibilityEvent event);
34        public void onInitializeAccessibilityEvent(View host, AccessibilityEvent event);
35        public void onInitializeAccessibilityNodeInfo(View host, Object info);
36        public void onPopulateAccessibilityEvent(View host, AccessibilityEvent event);
37        public boolean onRequestSendAccessibilityEvent(ViewGroup host, View child,
38            AccessibilityEvent event);
39        public void sendAccessibilityEvent(View host, int eventType);
40        public void sendAccessibilityEventUnchecked(View host, AccessibilityEvent event);
41        public Object getAccessibilityNodeProvider(View host);
42        public boolean performAccessibilityAction(View host, int action, Bundle args);
43    }
44
45    public static Object newAccessibilityDelegateBridge(
46            final AccessibilityDelegateBridgeJellyBean bridge) {
47        return new AccessibilityDelegate() {
48
49            @Override
50            public boolean dispatchPopulateAccessibilityEvent(View host, AccessibilityEvent event) {
51                return bridge.dispatchPopulateAccessibilityEvent(host, event);
52            }
53
54            @Override
55            public void onInitializeAccessibilityEvent(View host, AccessibilityEvent event) {
56                bridge.onInitializeAccessibilityEvent(host, event);
57            }
58
59            @Override
60            public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfo info) {
61                bridge.onInitializeAccessibilityNodeInfo(host, info);
62            }
63
64            @Override
65            public void onPopulateAccessibilityEvent(View host, AccessibilityEvent event) {
66                bridge.onPopulateAccessibilityEvent(host, event);
67            }
68
69            @Override
70            public boolean onRequestSendAccessibilityEvent(ViewGroup host, View child,
71                    AccessibilityEvent event) {
72                return bridge.onRequestSendAccessibilityEvent(host, child, event);
73            }
74
75            @Override
76            public void sendAccessibilityEvent(View host, int eventType) {
77                bridge.sendAccessibilityEvent(host, eventType);
78            }
79
80            @Override
81            public void sendAccessibilityEventUnchecked(View host, AccessibilityEvent event) {
82                bridge.sendAccessibilityEventUnchecked(host, event);
83            }
84
85            @Override
86            public AccessibilityNodeProvider getAccessibilityNodeProvider(View host) {
87                return (AccessibilityNodeProvider) bridge.getAccessibilityNodeProvider(host);
88            }
89
90            @Override
91            public boolean performAccessibilityAction(View host, int action, Bundle args) {
92                return bridge.performAccessibilityAction(host, action, args);
93            }
94        };
95    }
96
97    public static Object getAccessibilityNodeProvider(Object delegate,
98            View host) {
99        return ((AccessibilityDelegate) delegate).getAccessibilityNodeProvider(host);
100    }
101
102    public static boolean performAccessibilityAction(Object delegate, View host, int action,
103            Bundle args) {
104        return ((AccessibilityDelegate) delegate).performAccessibilityAction(host, action, args);
105    }
106}
107