4ca85b1e5c
Bug: 388677104 Test: atest and manual Flag: EXEMPT refactor NO_IFTTT=refactor Change-Id: I3c1aae3dc10a1c78e1b2b0ead8ffc83da933e174
75 lines
2.9 KiB
Kotlin
75 lines
2.9 KiB
Kotlin
/*
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* Copyright (C) 2024 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.settings.restriction
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import android.content.BroadcastReceiver
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import android.content.Context
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import android.content.Intent
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import android.content.IntentFilter
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import android.os.UserManager
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import com.android.settingslib.datastore.AbstractKeyedDataObservable
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import com.android.settingslib.datastore.DataChangeReason
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import com.android.settingslib.datastore.KeyedObserver
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import com.android.settingslib.metadata.PreferenceChangeReason
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import java.util.concurrent.Executor
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/** Helper class to monitor user restriction changes. */
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class UserRestrictions private constructor(private val applicationContext: Context) {
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private val observable =
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object : AbstractKeyedDataObservable<String>() {
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override fun onFirstObserverAdded() {
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val intentFilter = IntentFilter()
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intentFilter.addAction(UserManager.ACTION_USER_RESTRICTIONS_CHANGED)
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applicationContext.registerReceiver(broadcastReceiver, intentFilter)
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}
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override fun onLastObserverRemoved() {
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applicationContext.unregisterReceiver(broadcastReceiver)
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}
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}
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private val broadcastReceiver: BroadcastReceiver =
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object : BroadcastReceiver() {
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override fun onReceive(context: Context, intent: Intent) {
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// there is no way to get the changed keys, just notify all observers
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observable.notifyChange(PreferenceChangeReason.STATE)
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}
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}
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fun addObserver(observer: KeyedObserver<String?>, executor: Executor) =
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observable.addObserver(observer, executor)
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fun addObserver(key: String, observer: KeyedObserver<String>, executor: Executor) =
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observable.addObserver(key, observer, executor)
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fun removeObserver(observer: KeyedObserver<String?>) = observable.removeObserver(observer)
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fun removeObserver(key: String, observer: KeyedObserver<String>) =
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observable.removeObserver(key, observer)
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companion object {
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@Volatile private var instance: UserRestrictions? = null
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fun get(context: Context) =
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instance
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?: synchronized(this) {
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instance ?: UserRestrictions(context.applicationContext).also { instance = it }
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}
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}
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}
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