1 /* 2 * Copyright (C) 2020 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.Global.NOTIFICATION_BUBBLES; 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 28 import androidx.annotation.VisibleForTesting; 29 import androidx.preference.Preference; 30 import androidx.preference.PreferenceScreen; 31 32 import com.android.settings.core.PreferenceControllerMixin; 33 import com.android.settings.core.TogglePreferenceController; 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 /** 39 * Feature level screen for bubbles, available through notification menu. 40 * Allows user to turn bubbles on or off for the device. 41 */ 42 public class BubbleNotificationPreferenceController extends TogglePreferenceController 43 implements PreferenceControllerMixin, Preference.OnPreferenceChangeListener, 44 LifecycleObserver, OnResume, OnPause { 45 46 private static final String TAG = "BubbleNotifPrefContr"; 47 48 @VisibleForTesting 49 static final int ON = 1; 50 @VisibleForTesting 51 static final int OFF = 0; 52 53 private SettingObserver mSettingObserver; 54 BubbleNotificationPreferenceController(Context context, String preferenceKey)55 public BubbleNotificationPreferenceController(Context context, String preferenceKey) { 56 super(context, preferenceKey); 57 } 58 59 @Override displayPreference(PreferenceScreen screen)60 public void displayPreference(PreferenceScreen screen) { 61 super.displayPreference(screen); 62 Preference preference = screen.findPreference(getPreferenceKey()); 63 if (preference != null) { 64 mSettingObserver = new SettingObserver(preference); 65 } 66 } 67 68 @Override onResume()69 public void onResume() { 70 if (mSettingObserver != null) { 71 mSettingObserver.register(mContext.getContentResolver(), true /* register */); 72 } 73 } 74 75 @Override onPause()76 public void onPause() { 77 if (mSettingObserver != null) { 78 mSettingObserver.register(mContext.getContentResolver(), false /* register */); 79 } 80 } 81 82 @Override getAvailabilityStatus()83 public int getAvailabilityStatus() { 84 return AVAILABLE; 85 } 86 87 @Override isChecked()88 public boolean isChecked() { 89 return Settings.Global.getInt(mContext.getContentResolver(), 90 NOTIFICATION_BUBBLES, ON) == ON; 91 } 92 93 @Override setChecked(boolean isChecked)94 public boolean setChecked(boolean isChecked) { 95 return Settings.Global.putInt(mContext.getContentResolver(), 96 NOTIFICATION_BUBBLES, isChecked ? ON : OFF); 97 } 98 99 @Override isSliceable()100 public boolean isSliceable() { 101 return false; 102 } 103 104 class SettingObserver extends ContentObserver { 105 106 private final Uri NOTIFICATION_BUBBLES_URI = 107 Settings.Global.getUriFor(NOTIFICATION_BUBBLES); 108 109 private final Preference mPreference; 110 SettingObserver(Preference preference)111 SettingObserver(Preference preference) { 112 super(new Handler()); 113 mPreference = preference; 114 } 115 register(ContentResolver cr, boolean register)116 public void register(ContentResolver cr, boolean register) { 117 if (register) { 118 cr.registerContentObserver(NOTIFICATION_BUBBLES_URI, false, this); 119 } else { 120 cr.unregisterContentObserver(this); 121 } 122 } 123 124 @Override onChange(boolean selfChange, Uri uri)125 public void onChange(boolean selfChange, Uri uri) { 126 super.onChange(selfChange, uri); 127 if (NOTIFICATION_BUBBLES_URI.equals(uri)) { 128 updateState(mPreference); 129 } 130 } 131 } 132 } 133