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 */
16package android.car.app.menu;
17
18import android.os.Bundle;
19
20import java.util.List;
21
22/**
23 * The callbacks to receive menu items updates.
24 */
25public abstract class SubscriptionCallbacks {
26    /**
27     * Called when the items with the specified parent id are loaded.
28     *
29     * @param items The list of menu items. To retrieve the content of the item, use the keys
30     *              defined in {@link CarMenuConstants.CarMenuConstants}.
31     */
32    public abstract void onChildrenLoaded(String parentId, List<Bundle> items);
33
34    /**
35     * Called when there is an error loading the items with the specified id.
36     */
37    public abstract void onError(String id);
38
39    /**
40     * Called when the car menu items with the specified parent id are changed.
41     *
42     * @param item The new menu item. To retrieve the content of the item, use the keys
43     *              defined in {@link CarMenuConstants.CarMenuConstants}.
44     */
45    public abstract void onChildChanged(String parentId, Bundle item);
46}