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.deskclock.data 18 19 import android.content.ContentResolver 20 import android.content.Context 21 import android.database.ContentObserver 22 import android.net.Uri 23 import android.os.Handler 24 import android.os.Looper 25 import android.provider.Settings 26 27 import com.android.deskclock.provider.ClockContract.AlarmSettingColumns 28 29 /** 30 * All alarm data will eventually be accessed via this model. 31 */ 32 internal class AlarmModel( 33 context: Context, 34 /** The model from which settings are fetched. */ 35 private val mSettingsModel: SettingsModel 36 ) { 37 38 /** The uri of the default ringtone to play for new alarms; mirrors last selection. */ 39 private var mDefaultAlarmRingtoneUri: Uri? = null 40 41 init { 42 // Clear caches affected by system settings when system settings change. 43 val cr: ContentResolver = context.getContentResolver() 44 val observer: ContentObserver = SystemAlarmAlertChangeObserver() 45 cr.registerContentObserver(Settings.System.DEFAULT_ALARM_ALERT_URI, false, observer) 46 } 47 48 // Never set the silent ringtone as default; new alarms should always make sound by default. 49 var defaultAlarmRingtoneUri: Uri 50 get() { 51 if (mDefaultAlarmRingtoneUri == null) { 52 mDefaultAlarmRingtoneUri = mSettingsModel.defaultAlarmRingtoneUri 53 } 54 55 return mDefaultAlarmRingtoneUri!! 56 } 57 set(uri) { 58 // Never set the silent ringtone as default; new alarms should always make sound by default. 59 if (!AlarmSettingColumns.NO_RINGTONE_URI.equals(uri)) { 60 mSettingsModel.defaultAlarmRingtoneUri = uri 61 mDefaultAlarmRingtoneUri = uri 62 } 63 } 64 65 val alarmCrescendoDuration: Long 66 get() = mSettingsModel.alarmCrescendoDuration 67 68 val alarmVolumeButtonBehavior: DataModel.AlarmVolumeButtonBehavior 69 get() = mSettingsModel.alarmVolumeButtonBehavior 70 71 val alarmTimeout: Int 72 get() = mSettingsModel.alarmTimeout 73 74 val snoozeLength: Int 75 get() = mSettingsModel.snoozeLength 76 77 /** 78 * This receiver is notified when system settings change. Cached information built on 79 * those system settings must be cleared. 80 */ 81 private inner class SystemAlarmAlertChangeObserver 82 : ContentObserver(Handler(Looper.myLooper()!!)) { onChangenull83 override fun onChange(selfChange: Boolean) { 84 super.onChange(selfChange) 85 mDefaultAlarmRingtoneUri = null 86 } 87 } 88 }