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
17package android.car.settings;
18
19import android.content.Context;
20import android.database.ContentObserver;
21import android.net.Uri;
22import android.os.Handler;
23import android.provider.Settings;
24
25import java.lang.ref.WeakReference;
26
27/**
28 * A content observer for garage mode settings.
29 * @hide
30 */
31public abstract class GarageModeSettingsObserver extends ContentObserver {
32
33    public static final Uri GARAGE_MODE_ENABLED_URI =
34            Settings.Global.getUriFor(CarSettings.Global.KEY_GARAGE_MODE_ENABLED);
35    public static final Uri GARAGE_MODE_WAKE_UP_TIME_URI =
36            Settings.Global.getUriFor(CarSettings.Global.KEY_GARAGE_MODE_WAKE_UP_TIME);
37    public static final Uri GARAGE_MODE_MAINTENANCE_WINDOW_URI =
38            Settings.Global.getUriFor(CarSettings.Global.KEY_GARAGE_MODE_MAINTENANCE_WINDOW);
39
40    public static final Uri[] GARAGE_SETTING_URIS = {GARAGE_MODE_ENABLED_URI,
41            GARAGE_MODE_WAKE_UP_TIME_URI, GARAGE_MODE_MAINTENANCE_WINDOW_URI};
42
43    private final WeakReference<Context> mContext;
44
45    public GarageModeSettingsObserver(Context context, Handler handler) {
46        super(handler);
47        mContext = new WeakReference<Context>(context);
48    }
49
50    public void register() {
51        if (mContext.get() == null) {
52            return;
53        }
54        for (Uri uri : GARAGE_SETTING_URIS) {
55            mContext.get().getContentResolver().registerContentObserver(
56                    uri, false, this);
57        }
58    }
59
60    public void unregister() {
61        if (mContext.get() == null) {
62            return;
63        }
64        mContext.get().getContentResolver().unregisterContentObserver(this);
65    }
66
67}
68