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.settings.notification.zen;
18 
19 import android.app.Flags;
20 import android.content.ContentResolver;
21 import android.content.Context;
22 import android.database.ContentObserver;
23 import android.net.Uri;
24 import android.os.Handler;
25 import android.os.UserHandle;
26 import android.provider.Settings;
27 
28 import androidx.preference.Preference;
29 import androidx.preference.PreferenceScreen;
30 
31 import com.android.settings.R;
32 import com.android.settings.core.BasePreferenceController;
33 import com.android.settings.notification.modes.ZenModesListFragment;
34 import com.android.settingslib.core.lifecycle.LifecycleObserver;
35 import com.android.settingslib.core.lifecycle.events.OnPause;
36 import com.android.settingslib.core.lifecycle.events.OnResume;
37 
38 public class ZenModePreferenceController extends BasePreferenceController
39         implements LifecycleObserver, OnResume, OnPause {
40 
41     private SettingObserver mSettingObserver;
42     private ZenModeSettings.SummaryBuilder mSummaryBuilder;
43 
ZenModePreferenceController(Context context, String key)44     public ZenModePreferenceController(Context context, String key) {
45         super(context, key);
46         mSummaryBuilder = new ZenModeSettings.SummaryBuilder(context);
47     }
48 
49     @Override
displayPreference(PreferenceScreen screen)50     public void displayPreference(PreferenceScreen screen) {
51         super.displayPreference(screen);
52         Preference preference = screen.findPreference(getPreferenceKey());
53         mSettingObserver = new SettingObserver(preference);
54         maybeSetTitleAndDestination(preference);
55     }
56 
57     @Override
onResume()58     public void onResume() {
59         if (mSettingObserver != null) {
60             mSettingObserver.register(mContext.getContentResolver());
61         }
62     }
63 
64     @Override
onPause()65     public void onPause() {
66         if (mSettingObserver != null) {
67             mSettingObserver.unregister(mContext.getContentResolver());
68         }
69     }
70 
71     @Override
getAvailabilityStatus()72     public int getAvailabilityStatus() {
73         return AVAILABLE_UNSEARCHABLE;
74     }
75 
76     @Override
updateState(Preference preference)77     public void updateState(Preference preference) {
78         super.updateState(preference);
79         maybeSetTitleAndDestination(preference);
80         if (preference.isEnabled()) {
81             preference.setSummary(mSummaryBuilder.getSoundSummary());
82         }
83     }
84 
85     // Only when modes_ui is active: change title & target fragment.
maybeSetTitleAndDestination(Preference preference)86     private void maybeSetTitleAndDestination(Preference preference) {
87         if (!Flags.modesUi()) {
88             return;
89         }
90 
91         preference.setTitle(R.string.zen_modes_list_title);
92         preference.setFragment(ZenModesListFragment.class.getCanonicalName());
93     }
94 
95     class SettingObserver extends ContentObserver {
96         private final Uri ZEN_MODE_URI = Settings.Global.getUriFor(Settings.Global.ZEN_MODE);
97         private final Uri ZEN_MODE_CONFIG_ETAG_URI = Settings.Global.getUriFor(
98                 Settings.Global.ZEN_MODE_CONFIG_ETAG);
99 
100         private final Preference mPreference;
101 
SettingObserver(Preference preference)102         public SettingObserver(Preference preference) {
103             super(new Handler());
104             mPreference = preference;
105         }
106 
register(ContentResolver cr)107         public void register(ContentResolver cr) {
108             cr.registerContentObserver(ZEN_MODE_URI, false, this, UserHandle.USER_ALL);
109             cr.registerContentObserver(ZEN_MODE_CONFIG_ETAG_URI, false, this, UserHandle.USER_ALL);
110         }
111 
unregister(ContentResolver cr)112         public void unregister(ContentResolver cr) {
113             cr.unregisterContentObserver(this);
114         }
115 
116         @Override
onChange(boolean selfChange, Uri uri)117         public void onChange(boolean selfChange, Uri uri) {
118             super.onChange(selfChange, uri);
119             if (ZEN_MODE_URI.equals(uri)) {
120                 updateState(mPreference);
121             }
122 
123             if (ZEN_MODE_CONFIG_ETAG_URI.equals(uri)) {
124                 updateState(mPreference);
125             }
126         }
127     }
128 }
129