1 /*
2  * 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.keyguard.domain.interactor.FromDozingTransitionInteractor.Companion.TO_PRIMARY_BOUNCER_DURATION
21 import com.android.systemui.keyguard.shared.model.Edge
22 import com.android.systemui.keyguard.shared.model.KeyguardState.DOZING
23 import com.android.systemui.keyguard.shared.model.KeyguardState.PRIMARY_BOUNCER
24 import com.android.systemui.keyguard.ui.KeyguardTransitionAnimationFlow
25 import com.android.systemui.keyguard.ui.transitions.DeviceEntryIconTransition
26 import com.android.systemui.scene.shared.model.Scenes
27 import javax.inject.Inject
28 import kotlinx.coroutines.ExperimentalCoroutinesApi
29 import kotlinx.coroutines.flow.Flow
30 
31 /**
32  * Breaks down DOZING->PRIMARY BOUNCER transition into discrete steps for corresponding views to
33  * consume.
34  */
35 @ExperimentalCoroutinesApi
36 @SysUISingleton
37 class DozingToPrimaryBouncerTransitionViewModel
38 @Inject
39 constructor(
40     animationFlow: KeyguardTransitionAnimationFlow,
41 ) : DeviceEntryIconTransition {
42 
43     private val transitionAnimation =
44         animationFlow
45             .setup(
46                 duration = TO_PRIMARY_BOUNCER_DURATION,
47                 edge = Edge.create(from = DOZING, to = Scenes.Bouncer),
48             )
49             .setupWithoutSceneContainer(
50                 edge = Edge.create(from = DOZING, to = PRIMARY_BOUNCER),
51             )
52 
53     override val deviceEntryParentViewAlpha: Flow<Float> =
54         transitionAnimation.immediatelyTransitionTo(0f)
55 }
56