1 /*
2  * Copyright (C) 2017 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.settings.notification;
18 
19 import static android.provider.Settings.Secure.NOTIFICATION_BADGING;
20 
21 import android.content.ContentResolver;
22 import android.content.Context;
23 import android.database.ContentObserver;
24 import android.net.Uri;
25 import android.os.Handler;
26 import android.provider.Settings;
27 import android.text.TextUtils;
28 
29 import androidx.annotation.VisibleForTesting;
30 import androidx.preference.Preference;
31 import androidx.preference.PreferenceScreen;
32 
33 import com.android.settings.core.PreferenceControllerMixin;
34 import com.android.settings.core.TogglePreferenceController;
35 import com.android.settingslib.core.lifecycle.LifecycleObserver;
36 import com.android.settingslib.core.lifecycle.events.OnPause;
37 import com.android.settingslib.core.lifecycle.events.OnResume;
38 
39 public class BadgingNotificationPreferenceController extends TogglePreferenceController
40         implements PreferenceControllerMixin, Preference.OnPreferenceChangeListener,
41         LifecycleObserver, OnResume, OnPause {
42 
43     private static final String TAG = "BadgeNotifPrefContr";
44     @VisibleForTesting
45     static final int ON = 1;
46     @VisibleForTesting
47     static final int OFF = 0;
48 
49     private SettingObserver mSettingObserver;
50 
BadgingNotificationPreferenceController(Context context, String preferenceKey)51     public BadgingNotificationPreferenceController(Context context, String preferenceKey) {
52         super(context, preferenceKey);
53     }
54 
55     @Override
displayPreference(PreferenceScreen screen)56     public void displayPreference(PreferenceScreen screen) {
57         super.displayPreference(screen);
58         Preference preference = screen.findPreference(NOTIFICATION_BADGING);
59         if (preference != null) {
60             mSettingObserver = new SettingObserver(preference);
61         }
62     }
63 
64     @Override
onResume()65     public void onResume() {
66         if (mSettingObserver != null) {
67             mSettingObserver.register(mContext.getContentResolver(), true /* register */);
68         }
69     }
70 
71     @Override
onPause()72     public void onPause() {
73         if (mSettingObserver != null) {
74             mSettingObserver.register(mContext.getContentResolver(), false /* register */);
75         }
76     }
77 
78     @Override
getAvailabilityStatus()79     public int getAvailabilityStatus() {
80         return mContext.getResources()
81                 .getBoolean(com.android.internal.R.bool.config_notificationBadging)
82                 ? AVAILABLE : UNSUPPORTED_ON_DEVICE;
83     }
84 
85     @Override
isSliceable()86     public boolean isSliceable() {
87         return TextUtils.equals(getPreferenceKey(), "notification_badging");
88     }
89 
90     @Override
isChecked()91     public boolean isChecked() {
92         return Settings.Secure.getInt(mContext.getContentResolver(),
93                 NOTIFICATION_BADGING, ON) == ON;
94     }
95 
96     @Override
setChecked(boolean isChecked)97     public boolean setChecked(boolean isChecked) {
98         return Settings.Secure.putInt(mContext.getContentResolver(),
99                 NOTIFICATION_BADGING, isChecked ? ON : OFF);
100     }
101 
102     class SettingObserver extends ContentObserver {
103 
104         private final Uri NOTIFICATION_BADGING_URI =
105                 Settings.Secure.getUriFor(NOTIFICATION_BADGING);
106 
107         private final Preference mPreference;
108 
SettingObserver(Preference preference)109         public SettingObserver(Preference preference) {
110             super(new Handler());
111             mPreference = preference;
112         }
113 
register(ContentResolver cr, boolean register)114         public void register(ContentResolver cr, boolean register) {
115             if (register) {
116                 cr.registerContentObserver(NOTIFICATION_BADGING_URI, false, this);
117             } else {
118                 cr.unregisterContentObserver(this);
119             }
120         }
121 
122         @Override
onChange(boolean selfChange, Uri uri)123         public void onChange(boolean selfChange, Uri uri) {
124             super.onChange(selfChange, uri);
125             if (NOTIFICATION_BADGING_URI.equals(uri)) {
126                 updateState(mPreference);
127             }
128         }
129     }
130 }
131