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 android.app.NotificationManager; 20 import android.content.Context; 21 import android.provider.Settings; 22 23 import androidx.preference.Preference; 24 25 import com.android.settings.core.PreferenceControllerMixin; 26 import com.android.settingslib.RestrictedSwitchPreference; 27 28 public class LightsPreferenceController extends NotificationPreferenceController 29 implements PreferenceControllerMixin, Preference.OnPreferenceChangeListener { 30 31 private static final String KEY_LIGHTS = "lights"; 32 LightsPreferenceController(Context context, NotificationBackend backend)33 public LightsPreferenceController(Context context, NotificationBackend backend) { 34 super(context, backend); 35 } 36 37 @Override getPreferenceKey()38 public String getPreferenceKey() { 39 return KEY_LIGHTS; 40 } 41 42 @Override isAvailable()43 public boolean isAvailable() { 44 if (!super.isAvailable()) { 45 return false; 46 } 47 if (mChannel == null) { 48 return false; 49 } 50 return checkCanBeVisible(NotificationManager.IMPORTANCE_DEFAULT) 51 && canPulseLight() 52 && !isDefaultChannel(); 53 } 54 updateState(Preference preference)55 public void updateState(Preference preference) { 56 if (mChannel != null) { 57 RestrictedSwitchPreference pref = (RestrictedSwitchPreference) preference; 58 pref.setDisabledByAdmin(mAdmin); 59 pref.setEnabled(!pref.isDisabledByAdmin()); 60 pref.setChecked(mChannel.shouldShowLights()); 61 } 62 } 63 64 @Override onPreferenceChange(Preference preference, Object newValue)65 public boolean onPreferenceChange(Preference preference, Object newValue) { 66 if (mChannel != null) { 67 final boolean lights = (Boolean) newValue; 68 mChannel.enableLights(lights); 69 saveChannel(); 70 } 71 return true; 72 } 73 canPulseLight()74 boolean canPulseLight() { 75 if (!mContext.getResources() 76 .getBoolean(com.android.internal.R.bool.config_intrusiveNotificationLed)) { 77 return false; 78 } 79 return Settings.System.getInt(mContext.getContentResolver(), 80 Settings.System.NOTIFICATION_LIGHT_PULSE, 0) == 1; 81 } 82 83 } 84