1 /**
2  * Copyright (c) 2016, 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.car.stream;
18 
19 import com.android.car.stream.IStreamConsumer;
20 import com.android.car.stream.StreamCard;
21 
22 /**
23  * An API for clients to communicate with StreamService.
24  */
25 interface IStreamService {
26     /**
27      * Registers the stream consumer to listen for changes to cards within the StreamService.
28      */
29     void registerConsumer(in IStreamConsumer consumer) = 0;
30 
31     /**
32      * Removes the given stream consumer from the list of listeners within the StreamService.
33      */
34     void unregisterConsumer(in IStreamConsumer consumer) = 1;
35 
36     /**
37      * Returns all {@link StreamCard}s that the StreamService currently has.
38      */
fetchAllStreamCards()39     List<StreamCard> fetchAllStreamCards() = 2;
40 
41     /**
42      * Notifies the stream service that a card was dismissed.
43      */
44     void notifyStreamCardDismissed(in StreamCard card) = 3;
45 
46     /**
47      * Notifies the stream service that a card interation has occured.
48      */
49     void notifyStreamCardInteracted(in StreamCard card) = 4;
50 }
51