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.settings.display
18 
19 import android.content.BroadcastReceiver
20 import android.content.Context
21 import android.content.Intent
22 import android.content.IntentFilter
23 import android.hardware.SensorPrivacyManager
24 import android.hardware.SensorPrivacyManager.OnSensorPrivacyChangedListener
25 import android.hardware.SensorPrivacyManager.Sensors.CAMERA
26 import android.os.PowerManager
27 import android.os.UserManager
28 import android.provider.Settings
29 import com.android.settings.PreferenceRestrictionMixin
30 import com.android.settings.R
31 import com.android.settingslib.RestrictedSwitchPreference
32 import com.android.settingslib.datastore.KeyValueStore
33 import com.android.settingslib.datastore.KeyedObservableDelegate
34 import com.android.settingslib.datastore.SettingsSecureStore
35 import com.android.settingslib.datastore.SettingsStore
36 import com.android.settingslib.metadata.PreferenceAvailabilityProvider
37 import com.android.settingslib.metadata.PreferenceLifecycleContext
38 import com.android.settingslib.metadata.PreferenceLifecycleProvider
39 import com.android.settingslib.metadata.ReadWritePermit
40 import com.android.settingslib.metadata.SensitivityLevel
41 import com.android.settingslib.metadata.TwoStatePreference
42 import com.android.settingslib.preference.PreferenceBindingPlaceholder
43 import com.android.settingslib.preference.SwitchPreferenceBinding
44 
45 // LINT.IfChange
46 class AdaptiveSleepPreference :
47     TwoStatePreference,
48     SwitchPreferenceBinding,
49     PreferenceLifecycleProvider,
50     PreferenceBindingPlaceholder, // not needed once controller class is cleaned up
51     PreferenceAvailabilityProvider,
52     PreferenceRestrictionMixin {
53 
54     private var broadcastReceiver: BroadcastReceiver? = null
55     private var sensorPrivacyChangedListener: OnSensorPrivacyChangedListener? = null
56 
57     override val key: String
58         get() = KEY
59 
60     override val title: Int
61         get() = R.string.adaptive_sleep_title
62 
63     override val summary: Int
64         get() = R.string.adaptive_sleep_description
65 
66     override fun isIndexable(context: Context) = false
67 
68     override fun isEnabled(context: Context) =
69         super<PreferenceRestrictionMixin>.isEnabled(context) && context.canBeEnabled()
70 
71     override val restrictionKeys: Array<String>
72         get() = arrayOf(UserManager.DISALLOW_CONFIG_SCREEN_TIMEOUT)
73 
74     override fun isAvailable(context: Context) = context.isAdaptiveSleepSupported()
75 
76     override fun createWidget(context: Context) = RestrictedSwitchPreference(context)
77 
78     override fun storage(context: Context): KeyValueStore = Storage(context)
79 
80     override fun getReadPermit(context: Context, myUid: Int, callingUid: Int) =
81         ReadWritePermit.ALLOW
82 
83     override fun getWritePermit(context: Context, value: Boolean?, myUid: Int, callingUid: Int) =
84         ReadWritePermit.ALLOW
85 
86     override val sensitivityLevel
87         get() = SensitivityLevel.NO_SENSITIVITY
88 
89     @Suppress("UNCHECKED_CAST")
90     private class Storage(
91         private val context: Context,
92         private val settingsStore: SettingsStore = SettingsSecureStore.get(context),
93     ) : KeyedObservableDelegate<String>(settingsStore), KeyValueStore {
94 
95         override fun contains(key: String) = settingsStore.contains(key)
96 
97         override fun <T : Any> getValue(key: String, valueType: Class<T>) =
98             (context.canBeEnabled() && settingsStore.getBoolean(key) == true) as T
99 
100         override fun <T : Any> setValue(key: String, valueType: Class<T>, value: T?) =
101             settingsStore.setBoolean(key, value as Boolean?)
102     }
103 
104     override fun onStart(context: PreferenceLifecycleContext) {
105         val receiver =
106             object : BroadcastReceiver() {
107                 override fun onReceive(receiverContext: Context, intent: Intent) {
108                     context.notifyPreferenceChange(KEY)
109                 }
110             }
111         context.registerReceiver(
112             receiver,
113             IntentFilter(PowerManager.ACTION_POWER_SAVE_MODE_CHANGED),
114         )
115         broadcastReceiver = receiver
116 
117         val listener = OnSensorPrivacyChangedListener { _, _ ->
118             context.notifyPreferenceChange(KEY)
119         }
120         SensorPrivacyManager.getInstance(context).addSensorPrivacyListener(CAMERA, listener)
121         sensorPrivacyChangedListener = listener
122     }
123 
124     override fun onStop(context: PreferenceLifecycleContext) {
125         broadcastReceiver?.let { context.unregisterReceiver(it) }
126         sensorPrivacyChangedListener?.let {
127             SensorPrivacyManager.getInstance(context).removeSensorPrivacyListener(it)
128         }
129     }
130 
131     companion object {
132         const val KEY = Settings.Secure.ADAPTIVE_SLEEP
133 
134         @Suppress("DEPRECATION")
135         private fun Context.canBeEnabled() =
136             AdaptiveSleepPreferenceController.hasSufficientPermission(packageManager) &&
137                 getSystemService(PowerManager::class.java)?.isPowerSaveMode != true &&
138                 !SensorPrivacyManager.getInstance(this).isSensorPrivacyEnabled(CAMERA)
139     }
140 }
141 // LINT.ThenChange(AdaptiveSleepPreferenceController.java)
142