1 /*
2  * Copyright (C) 2020 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.deskclock.data
18 
19 /**
20  * The interface through which interested parties are notified of changes to one of the timers.
21  */
22 interface TimerListener {
23     /**
24      * @param timer the timer that was added
25      */
timerAddednull26     fun timerAdded(timer: Timer)
27 
28     /**
29      * @param before the timer state before the update
30      * @param after the timer state after the update
31      */
32     fun timerUpdated(before: Timer, after: Timer)
33 
34     /**
35      * @param timer the timer that was removed
36      */
37     fun timerRemoved(timer: Timer)
38 }