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.keyguard.ui.viewmodel 18 19 import com.android.systemui.dagger.SysUISingleton 20 import com.android.systemui.deviceentry.domain.interactor.DeviceEntryUdfpsInteractor 21 import com.android.systemui.keyguard.domain.interactor.FromAlternateBouncerTransitionInteractor 22 import com.android.systemui.keyguard.shared.model.Edge 23 import com.android.systemui.keyguard.shared.model.KeyguardState.ALTERNATE_BOUNCER 24 import com.android.systemui.keyguard.shared.model.KeyguardState.DOZING 25 import com.android.systemui.keyguard.ui.KeyguardTransitionAnimationFlow 26 import com.android.systemui.keyguard.ui.transitions.DeviceEntryIconTransition 27 import javax.inject.Inject 28 import kotlinx.coroutines.flow.Flow 29 import kotlinx.coroutines.flow.flatMapLatest 30 31 /** 32 * Breaks down ALTERNATE BOUNCER->DOZING transition into discrete steps for corresponding views to 33 * consume. 34 */ 35 @SysUISingleton 36 class AlternateBouncerToDozingTransitionViewModel 37 @Inject 38 constructor( 39 deviceEntryUdfpsInteractor: DeviceEntryUdfpsInteractor, 40 animationFlow: KeyguardTransitionAnimationFlow, 41 ) : DeviceEntryIconTransition { 42 private val transitionAnimation = 43 animationFlow.setup( 44 duration = FromAlternateBouncerTransitionInteractor.TO_DOZING_DURATION, 45 edge = Edge.create(from = ALTERNATE_BOUNCER, to = DOZING), 46 ) 47 48 val deviceEntryBackgroundViewAlpha: Flow<Float> = 49 transitionAnimation.immediatelyTransitionTo(0f) 50 51 override val deviceEntryParentViewAlpha: Flow<Float> = 52 deviceEntryUdfpsInteractor.isUdfpsEnrolledAndEnabled.flatMapLatest { udfpsEnrolledAndEnabled 53 -> 54 if (udfpsEnrolledAndEnabled) { 55 transitionAnimation.immediatelyTransitionTo(1f) 56 } else { 57 transitionAnimation.immediatelyTransitionTo(0f) 58 } 59 } 60 } 61