1/*
2 * Copyright (C) 2015 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 com.android.server.accessibility;
18
19import android.view.KeyEvent;
20import android.view.MotionEvent;
21import android.view.accessibility.AccessibilityEvent;
22
23/**
24 * Intercepts key events and forwards them to accessibility manager service.
25 */
26public class KeyboardInterceptor implements EventStreamTransformation {
27    private EventStreamTransformation mNext;
28    private AccessibilityManagerService mAms;
29
30    public KeyboardInterceptor(AccessibilityManagerService service) {
31        mAms = service;
32    }
33
34    @Override
35    public void onMotionEvent(MotionEvent event, MotionEvent rawEvent, int policyFlags) {
36        if (mNext != null) {
37            mNext.onMotionEvent(event, rawEvent, policyFlags);
38        }
39    }
40
41    @Override
42    public void onKeyEvent(KeyEvent event, int policyFlags) {
43        mAms.notifyKeyEvent(event, policyFlags);
44    }
45
46    @Override
47    public void onAccessibilityEvent(AccessibilityEvent event) {
48        if (mNext != null) {
49            mNext.onAccessibilityEvent(event);
50        }
51    }
52
53    @Override
54    public void setNext(EventStreamTransformation next) {
55        mNext = next;
56    }
57
58    @Override
59    public void clearEvents(int inputSource) {
60        if (mNext != null) {
61            mNext.clearEvents(inputSource);
62        }
63    }
64
65    @Override
66    public void onDestroy() {
67    }
68}
69