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.dagger.SysUISingleton 20 import com.android.systemui.deviceentry.domain.interactor.DeviceEntryUdfpsInteractor 21 import com.android.systemui.keyguard.domain.interactor.FromLockscreenTransitionInteractor.Companion.TO_DOZING_DURATION 22 import com.android.systemui.keyguard.shared.model.Edge 23 import com.android.systemui.keyguard.shared.model.KeyguardState.DOZING 24 import com.android.systemui.keyguard.shared.model.KeyguardState.LOCKSCREEN 25 import com.android.systemui.keyguard.ui.KeyguardTransitionAnimationFlow 26 import com.android.systemui.keyguard.ui.transitions.DeviceEntryIconTransition 27 import javax.inject.Inject 28 import kotlin.time.Duration.Companion.milliseconds 29 import kotlinx.coroutines.flow.Flow 30 import kotlinx.coroutines.flow.flatMapLatest 31 32 @SysUISingleton 33 class LockscreenToDozingTransitionViewModel 34 @Inject 35 constructor( 36 deviceEntryUdfpsInteractor: DeviceEntryUdfpsInteractor, 37 animationFlow: KeyguardTransitionAnimationFlow, 38 ) : DeviceEntryIconTransition { 39 40 private val transitionAnimation = 41 animationFlow.setup( 42 duration = TO_DOZING_DURATION, 43 edge = Edge.create(from = LOCKSCREEN, to = DOZING), 44 ) 45 46 val lockscreenAlpha: Flow<Float> = transitionAnimation.immediatelyTransitionTo(1f) 47 48 val shortcutsAlpha: Flow<Float> = 49 transitionAnimation.sharedFlow( 50 duration = 250.milliseconds, 51 onStep = { 1 - it }, 52 onFinish = { 0f }, 53 onCancel = { 1f }, 54 ) 55 56 val deviceEntryBackgroundViewAlpha: Flow<Float> = 57 transitionAnimation.sharedFlow( 58 duration = TO_DOZING_DURATION, 59 onStep = { null }, 60 onFinish = { 0f }, 61 onCancel = { 0f }, 62 ) 63 64 override val deviceEntryParentViewAlpha: Flow<Float> = 65 deviceEntryUdfpsInteractor.isUdfpsEnrolledAndEnabled.flatMapLatest { 66 isUdfpsEnrolledAndEnabled -> 67 if (isUdfpsEnrolledAndEnabled) { 68 transitionAnimation.immediatelyTransitionTo(1f) 69 } else { 70 transitionAnimation.sharedFlow(duration = 250.milliseconds, onStep = { 1f - it }) 71 } 72 } 73 } 74