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.shade.ui.composable 18 19 import androidx.compose.ui.unit.IntOffset 20 import com.android.systemui.qs.ui.adapter.QSSceneAdapter 21 22 /** 23 * Provider for the extra offset for the Media section in the shade to accommodate for the squishing 24 * qs or qqs tiles. 25 */ 26 interface ShadeMediaOffsetProvider { 27 28 /** Returns current offset to be applied to the Media Carousel */ 29 val offset: IntOffset 30 31 /** 32 * [ShadeMediaOffsetProvider] implementation for Quick Settings. 33 * 34 * [updateLayout] should represent an access to some state to trigger Compose to relayout to 35 * track [QSSceneAdapter] internal state changes during the transition. 36 */ 37 class Qs(private val updateLayout: () -> Unit, private val qsSceneAdapter: QSSceneAdapter) : 38 ShadeMediaOffsetProvider { 39 40 override val offset: IntOffset 41 get() = 42 calculateQsOffset( 43 updateLayout, 44 qsSceneAdapter.qsHeight, 45 qsSceneAdapter.squishedQsHeight 46 ) 47 } 48 49 /** 50 * [ShadeMediaOffsetProvider] implementation for Quick Quick Settings. 51 * 52 * [updateLayout] should represent an access to some state to trigger Compose to relayout to 53 * track [QSSceneAdapter] internal state changes during the transition. 54 */ 55 class Qqs(private val updateLayout: () -> Unit, private val qsSceneAdapter: QSSceneAdapter) : 56 ShadeMediaOffsetProvider { 57 58 override val offset: IntOffset 59 get() = 60 calculateQsOffset( 61 updateLayout, 62 qsSceneAdapter.qqsHeight, 63 qsSceneAdapter.squishedQqsHeight 64 ) 65 } 66 67 companion object { 68 calculateQsOffsetnull69 protected fun calculateQsOffset( 70 updateLayout: () -> Unit, 71 qsHeight: Int, 72 qsSquishedHeight: Int 73 ): IntOffset { 74 updateLayout() 75 val distanceFromBottomToActualBottom = qsHeight - qsSquishedHeight 76 return IntOffset(0, -distanceFromBottomToActualBottom) 77 } 78 } 79 } 80