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.scene.ui.composable.transitions
18 
19 import androidx.compose.animation.core.Spring
20 import androidx.compose.animation.core.spring
21 import androidx.compose.animation.core.tween
22 import androidx.compose.foundation.gestures.Orientation
23 import androidx.compose.ui.unit.IntSize
24 import com.android.compose.animation.scene.Edge
25 import com.android.compose.animation.scene.TransitionBuilder
26 import com.android.compose.animation.scene.UserActionDistance
27 import com.android.compose.animation.scene.UserActionDistanceScope
28 import com.android.systemui.shade.ui.composable.OverlayShade
29 import com.android.systemui.shade.ui.composable.Shade
30 import kotlin.time.Duration.Companion.milliseconds
31 
TransitionBuildernull32 fun TransitionBuilder.toQuickSettingsShadeTransition(
33     durationScale: Double = 1.0,
34 ) {
35     spec = tween(durationMillis = (DefaultDuration * durationScale).inWholeMilliseconds.toInt())
36     swipeSpec =
37         spring(
38             stiffness = Spring.StiffnessMediumLow,
39             visibilityThreshold = Shade.Dimensions.ScrimVisibilityThreshold,
40         )
41     distance =
42         object : UserActionDistance {
43             override fun UserActionDistanceScope.absoluteDistance(
44                 fromSceneSize: IntSize,
45                 orientation: Orientation,
46             ): Float {
47                 return fromSceneSize.height.toFloat() * 2 / 3f
48             }
49         }
50 
51     translate(OverlayShade.Elements.Panel, Edge.Top)
52 
53     fractionRange(end = .5f) { fade(OverlayShade.Elements.Scrim) }
54 }
55 
56 private val DefaultDuration = 300.milliseconds
57