1 /*
<lambda>null2  * Copyright (C) 2024 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.systemui.util.settings.repository
18 
19 import android.provider.Settings
20 import com.android.systemui.dagger.SysUISingleton
21 import com.android.systemui.dagger.qualifiers.Background
22 import com.android.systemui.user.data.repository.UserRepository
23 import com.android.systemui.util.settings.SecureSettings
24 import com.android.systemui.util.settings.SettingsProxy
25 import com.android.systemui.util.settings.SettingsProxyExt.observerFlow
26 import kotlinx.coroutines.CoroutineDispatcher
27 import kotlinx.coroutines.ExperimentalCoroutinesApi
28 import kotlinx.coroutines.flow.Flow
29 import kotlinx.coroutines.flow.distinctUntilChanged
30 import kotlinx.coroutines.flow.flatMapLatest
31 import kotlinx.coroutines.flow.flowOn
32 import kotlinx.coroutines.flow.map
33 import kotlinx.coroutines.flow.onStart
34 import javax.inject.Inject
35 
36 /**
37  * Repository for observing values of [Settings.Secure] for the currently active user. That means
38  * when user is switched and the new user has different value, flow will emit new value.
39  */
40 interface UserAwareSecureSettingsRepository {
41 
42     /**
43      * Emits boolean value of the setting for active user. Also emits starting value when
44      * subscribed.
45      * See: [SettingsProxy.getBool].
46      */
47     fun boolSettingForActiveUser(name: String, defaultValue: Boolean = false): Flow<Boolean>
48 }
49 
50 @SysUISingleton
51 @OptIn(ExperimentalCoroutinesApi::class)
52 class UserAwareSecureSettingsRepositoryImpl @Inject constructor(
53     private val secureSettings: SecureSettings,
54     private val userRepository: UserRepository,
55     @Background private val backgroundDispatcher: CoroutineDispatcher,
56 ) : UserAwareSecureSettingsRepository {
57 
boolSettingForActiveUsernull58     override fun boolSettingForActiveUser(name: String, defaultValue: Boolean): Flow<Boolean> =
59         userRepository.selectedUserInfo
60             .flatMapLatest { userInfo -> settingObserver(name, defaultValue, userInfo.id) }
61             .distinctUntilChanged()
62             .flowOn(backgroundDispatcher)
63 
settingObservernull64     private fun settingObserver(name: String, defaultValue: Boolean, userId: Int): Flow<Boolean> {
65         return secureSettings
66             .observerFlow(userId, name)
67             .onStart { emit(Unit) }
68             .map { secureSettings.getBoolForUser(name, defaultValue, userId) }
69     }
70 }