1 /*
2  * Copyright 2023 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 com.android.server.input;
18 
19 import android.os.UEventObserver;
20 
21 /** An interface used to change the API of UEventObserver to a more test-friendly format. */
22 interface UEventManager {
23 
24     abstract class UEventListener {
25         private final UEventObserver mObserver = new UEventObserver() {
26             @Override
27             public void onUEvent(UEvent event) {
28                 UEventListener.this.onUEvent(event);
29             }
30         };
31 
onUEvent(UEventObserver.UEvent event)32         public abstract void onUEvent(UEventObserver.UEvent event);
33     }
34 
addListener(UEventListener listener, String match)35     default void addListener(UEventListener listener, String match) {
36         listener.mObserver.startObserving(match);
37     }
38 
removeListener(UEventListener listener)39     default void removeListener(UEventListener listener) {
40         listener.mObserver.stopObserving();
41     }
42 }
43