1 /*
<lambda>null2  * Copyright (C) 2023 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.network.telephony
18 
19 import android.content.Context
20 import android.telephony.SubscriptionManager
21 import android.telephony.TelephonyManager
22 import android.telephony.data.ApnSetting
23 import androidx.lifecycle.LifecycleOwner
24 import androidx.preference.PreferenceScreen
25 import com.android.settings.network.mobileDataEnabledFlow
26 import com.android.settingslib.spa.framework.util.collectLatestWithLifecycle
27 import kotlinx.coroutines.flow.combine
28 
29 /**
30  * Preference controller for "MMS messages"
31  */
32 class MmsMessagePreferenceController @JvmOverloads constructor(
33     context: Context,
34     key: String,
35     private val getDefaultDataSubId: () -> Int = {
36         SubscriptionManager.getDefaultDataSubscriptionId()
37     },
38 ) : TelephonyTogglePreferenceController(context, key) {
39 
40     private lateinit var telephonyManager: TelephonyManager
41 
42     private var preferenceScreen: PreferenceScreen? = null
43 
initnull44     fun init(subId: Int) {
45         mSubId = subId
46         telephonyManager = mContext.getSystemService(TelephonyManager::class.java)!!
47             .createForSubscriptionId(subId)
48     }
49 
getAvailabilityStatusnull50     override fun getAvailabilityStatus(subId: Int) =
51         if (subId != SubscriptionManager.INVALID_SUBSCRIPTION_ID &&
52             this::telephonyManager.isInitialized &&
53             !telephonyManager.isDataEnabled &&
54             telephonyManager.isApnMetered(ApnSetting.TYPE_MMS) &&
55             !isFallbackDataEnabled()
56         ) AVAILABLE else CONDITIONALLY_UNAVAILABLE
57 
58     private fun isFallbackDataEnabled(): Boolean {
59         val defaultDataSubId = getDefaultDataSubId()
60         return defaultDataSubId != mSubId &&
61             telephonyManager.createForSubscriptionId(defaultDataSubId).isDataEnabled &&
62             telephonyManager.isMobileDataPolicyEnabled(
63                 TelephonyManager.MOBILE_DATA_POLICY_AUTO_DATA_SWITCH
64             )
65     }
66 
displayPreferencenull67     override fun displayPreference(screen: PreferenceScreen) {
68         super.displayPreference(screen)
69         preferenceScreen = screen
70     }
71 
onViewCreatednull72     override fun onViewCreated(viewLifecycleOwner: LifecycleOwner) {
73         combine(
74             mContext.mobileDataEnabledFlow(mSubId),
75             mContext.subscriptionsChangedFlow(), // Capture isMobileDataPolicyEnabled() changes
76         ) { _, _ -> }.collectLatestWithLifecycle(viewLifecycleOwner) {
77             preferenceScreen?.let { super.displayPreference(it) }
78         }
79     }
80 
isCheckednull81     override fun isChecked(): Boolean = telephonyManager.isMobileDataPolicyEnabled(
82         TelephonyManager.MOBILE_DATA_POLICY_MMS_ALWAYS_ALLOWED
83     )
84 
85     override fun setChecked(isChecked: Boolean): Boolean {
86         telephonyManager.setMobileDataPolicyEnabled(
87             TelephonyManager.MOBILE_DATA_POLICY_MMS_ALWAYS_ALLOWED,
88             isChecked,
89         )
90         return true
91     }
92 }
93