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.Flags 20 import com.android.systemui.dagger.SysUISingleton 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.PRIMARY_BOUNCER 25 import com.android.systemui.keyguard.ui.KeyguardTransitionAnimationFlow 26 import com.android.systemui.keyguard.ui.transitions.BlurConfig 27 import com.android.systemui.keyguard.ui.transitions.DeviceEntryIconTransition 28 import com.android.systemui.keyguard.ui.transitions.PrimaryBouncerTransition 29 import com.android.systemui.scene.shared.flag.SceneContainerFlag 30 import com.android.systemui.scene.shared.model.Overlays 31 import com.android.systemui.scene.ui.composable.transitions.TO_BOUNCER_FADE_FRACTION 32 import javax.inject.Inject 33 import kotlinx.coroutines.flow.Flow 34 import kotlinx.coroutines.flow.emptyFlow 35 36 /** 37 * Breaks down ALTERNATE BOUNCER->PRIMARY BOUNCER transition into discrete steps for corresponding 38 * views to consume. 39 */ 40 @SysUISingleton 41 class AlternateBouncerToPrimaryBouncerTransitionViewModel 42 @Inject 43 constructor( 44 animationFlow: KeyguardTransitionAnimationFlow, 45 blurConfig: BlurConfig, 46 shadeDependentFlows: ShadeDependentFlows, 47 ) : DeviceEntryIconTransition, PrimaryBouncerTransition { 48 private val transitionAnimation = 49 animationFlow 50 .setup( 51 duration = FromAlternateBouncerTransitionInteractor.TO_PRIMARY_BOUNCER_DURATION, 52 edge = Edge.create(from = ALTERNATE_BOUNCER, to = Overlays.Bouncer), 53 ) 54 .setupWithoutSceneContainer( 55 edge = Edge.create(from = ALTERNATE_BOUNCER, to = PRIMARY_BOUNCER) 56 ) 57 58 private val alphaForAnimationStep: (Float) -> Float = 59 when { 60 SceneContainerFlag.isEnabled -> { step -> 61 1f - Math.min((step / TO_BOUNCER_FADE_FRACTION), 1f) 62 } 63 else -> { step -> 1f - step } 64 } 65 66 private val alphaFlow = 67 transitionAnimation.sharedFlow( 68 duration = FromAlternateBouncerTransitionInteractor.TO_PRIMARY_BOUNCER_DURATION, 69 onStep = alphaForAnimationStep, 70 ) 71 72 val lockscreenAlpha: Flow<Float> = if (Flags.bouncerUiRevamp()) alphaFlow else emptyFlow() 73 74 val notificationAlpha: Flow<Float> = 75 if (Flags.bouncerUiRevamp()) { 76 shadeDependentFlows.transitionFlow( 77 flowWhenShadeIsNotExpanded = lockscreenAlpha, 78 flowWhenShadeIsExpanded = transitionAnimation.immediatelyTransitionTo(1f), 79 ) 80 } else { 81 alphaFlow 82 } 83 84 override val notificationBlurRadius: Flow<Float> = 85 if (Flags.bouncerUiRevamp()) { 86 shadeDependentFlows.transitionFlow( 87 flowWhenShadeIsNotExpanded = emptyFlow(), 88 flowWhenShadeIsExpanded = 89 transitionAnimation.immediatelyTransitionTo(blurConfig.maxBlurRadiusPx), 90 ) 91 } else { 92 emptyFlow<Float>() 93 } 94 95 override val deviceEntryParentViewAlpha: Flow<Float> = 96 transitionAnimation.immediatelyTransitionTo(0f) 97 98 override val windowBlurRadius: Flow<Float> = 99 shadeDependentFlows.transitionFlow( 100 flowWhenShadeIsExpanded = 101 if (Flags.notificationShadeBlur()) { 102 transitionAnimation.immediatelyTransitionTo(blurConfig.maxBlurRadiusPx) 103 } else { 104 transitionAnimation.immediatelyTransitionTo(blurConfig.minBlurRadiusPx) 105 }, 106 flowWhenShadeIsNotExpanded = 107 transitionAnimation.sharedFlow( 108 duration = FromAlternateBouncerTransitionInteractor.TO_PRIMARY_BOUNCER_DURATION, 109 onStep = { step -> 110 transitionProgressToBlurRadius( 111 starBlurRadius = blurConfig.minBlurRadiusPx, 112 endBlurRadius = blurConfig.maxBlurRadiusPx, 113 transitionProgress = step, 114 ) 115 }, 116 onFinish = { blurConfig.maxBlurRadiusPx }, 117 ), 118 ) 119 } 120