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.systemui.keyguard.ui.viewmodel 18 19 import com.android.systemui.bouncer.domain.interactor.AlternateBouncerInteractor 20 import com.android.systemui.deviceentry.domain.interactor.BiometricMessageInteractor 21 import com.android.systemui.deviceentry.shared.model.BiometricMessage 22 import com.android.systemui.deviceentry.shared.model.FaceMessage 23 import com.android.systemui.deviceentry.shared.model.FaceTimeoutMessage 24 import com.android.systemui.deviceentry.shared.model.FingerprintLockoutMessage 25 import com.android.systemui.deviceentry.shared.model.FingerprintMessage 26 import com.android.systemui.statusbar.KeyguardIndicationController.DEFAULT_MESSAGE_TIME 27 import com.android.systemui.util.kotlin.sample 28 import javax.inject.Inject 29 import kotlinx.coroutines.flow.Flow 30 import kotlinx.coroutines.flow.filter 31 import kotlinx.coroutines.flow.filterIsInstance 32 import kotlinx.coroutines.flow.filterNot 33 import kotlinx.coroutines.flow.flatMapLatest 34 import kotlinx.coroutines.flow.flowOf 35 import kotlinx.coroutines.flow.map 36 import kotlinx.coroutines.flow.merge 37 import kotlinx.coroutines.flow.onStart 38 39 /** View model for the alternate bouncer message area. */ 40 class AlternateBouncerMessageAreaViewModel 41 @Inject 42 constructor( 43 biometricMessageInteractor: BiometricMessageInteractor, 44 alternateBouncerInteractor: AlternateBouncerInteractor, 45 systemClock: com.android.systemui.util.time.SystemClock, 46 ) { 47 private val fingerprintMessageWithTimestamp: Flow<Pair<FingerprintMessage?, Long>> = 48 biometricMessageInteractor.fingerprintMessage 49 .filterNot { it is FingerprintLockoutMessage } 50 .map { Pair(it, systemClock.uptimeMillis()) } 51 .filterIsInstance<Pair<FingerprintMessage?, Long>>() 52 .onStart { emit(Pair(null, -3500L)) } 53 private val fingerprintMessage: Flow<FingerprintMessage> = 54 fingerprintMessageWithTimestamp.filter { it.first != null }.map { it.first!! } 55 private val faceMessage: Flow<FaceMessage> = 56 biometricMessageInteractor.faceMessage 57 .filterNot { it is FaceTimeoutMessage } 58 // Don't show face messages if within the default message time for fp messages to show 59 .sample(fingerprintMessageWithTimestamp, ::Pair) 60 .filter { (_, fpMessage) -> 61 (systemClock.uptimeMillis() - fpMessage.second) >= DEFAULT_MESSAGE_TIME 62 } 63 .map { (faceMsg, _) -> faceMsg } 64 65 val message: Flow<BiometricMessage?> = 66 alternateBouncerInteractor.isVisible.flatMapLatest { isVisible -> 67 if (isVisible) { 68 merge( 69 fingerprintMessage, 70 faceMessage, 71 ) 72 } else { 73 flowOf(null) 74 } 75 } 76 } 77