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.FromGoneTransitionInteractor.Companion.TO_GLANCEABLE_HUB_DURATION
21 import com.android.systemui.keyguard.shared.model.Edge
22 import com.android.systemui.keyguard.shared.model.KeyguardState.GLANCEABLE_HUB
23 import com.android.systemui.keyguard.shared.model.KeyguardState.GONE
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 kotlin.time.Duration.Companion.milliseconds
29 import kotlinx.coroutines.flow.Flow
30 
31 @SysUISingleton
32 class GoneToGlanceableHubTransitionViewModel
33 @Inject
34 constructor(
35     animationFlow: KeyguardTransitionAnimationFlow,
36 ) : DeviceEntryIconTransition {
37 
38     private val transitionAnimation =
39         animationFlow
40             .setup(duration = TO_GLANCEABLE_HUB_DURATION, edge = Edge.create(GONE, Scenes.Communal))
41             .setupWithoutSceneContainer(edge = Edge.create(GONE, GLANCEABLE_HUB))
42 
43     override val deviceEntryParentViewAlpha: Flow<Float> =
44         transitionAnimation.sharedFlow(
45             duration = 167.milliseconds,
<lambda>null46             onStep = { it },
<lambda>null47             onCancel = { 0f },
<lambda>null48             onFinish = { 1f },
49         )
50 }
51