1 /* 2 * Copyright (C) 2023 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.statusbar.notification.stack.ui.view 18 19 import android.content.Context 20 import android.util.AttributeSet 21 import android.view.View 22 import androidx.constraintlayout.core.widgets.Optimizer 23 import androidx.constraintlayout.widget.ConstraintLayout 24 import androidx.constraintlayout.widget.ConstraintSet 25 import androidx.constraintlayout.widget.ConstraintSet.BOTTOM 26 import androidx.constraintlayout.widget.ConstraintSet.END 27 import androidx.constraintlayout.widget.ConstraintSet.PARENT_ID 28 import androidx.constraintlayout.widget.ConstraintSet.START 29 import androidx.constraintlayout.widget.ConstraintSet.TOP 30 import androidx.constraintlayout.widget.ConstraintSet.VERTICAL 31 import com.android.systemui.res.R 32 import com.android.systemui.scene.shared.flag.SceneContainerFlag 33 import com.android.systemui.statusbar.notification.stack.ui.viewmodel.SharedNotificationContainerViewModel.HorizontalPosition 34 35 /** 36 * Container for the stack scroller, so that the bounds can be externally specified, such as from 37 * the keyguard or shade scenes. 38 */ 39 class SharedNotificationContainer(context: Context, attrs: AttributeSet?) : 40 ConstraintLayout(context, attrs) { 41 42 private val baseConstraintSet = ConstraintSet() 43 44 init { 45 optimizationLevel = optimizationLevel or Optimizer.OPTIMIZATION_GRAPH <lambda>null46 baseConstraintSet.apply { 47 create(R.id.nssl_guideline, VERTICAL) 48 setGuidelinePercent(R.id.nssl_guideline, 0.5f) 49 } 50 baseConstraintSet.applyTo(this) 51 } 52 addNotificationStackScrollLayoutnull53 fun addNotificationStackScrollLayout(nssl: View) { 54 addView(nssl) 55 } 56 updateConstraintsnull57 fun updateConstraints( 58 horizontalPosition: HorizontalPosition, 59 marginStart: Int, 60 marginTop: Int, 61 marginEnd: Int, 62 marginBottom: Int, 63 nsslAlpha: Float, 64 ) { 65 val constraintSet = ConstraintSet() 66 constraintSet.clone(baseConstraintSet) 67 68 val startConstraintId = 69 if (horizontalPosition is HorizontalPosition.MiddleToEdge) { 70 R.id.nssl_guideline 71 } else { 72 PARENT_ID 73 } 74 75 val nsslId = R.id.notification_stack_scroller 76 constraintSet.apply { 77 if (SceneContainerFlag.isEnabled) { 78 when (horizontalPosition) { 79 is HorizontalPosition.FloatAtStart -> 80 constrainWidth(nsslId, horizontalPosition.width) 81 is HorizontalPosition.MiddleToEdge -> 82 setGuidelinePercent(R.id.nssl_guideline, horizontalPosition.ratio) 83 else -> Unit 84 } 85 } 86 87 // Constraint layout sets the alpha to 1 if it's not set explicitly in the constraint 88 // set. Let's keep the current nssl alpha instead, otherwise this might interfere with 89 // animations. 90 setAlpha(nsslId, nsslAlpha) 91 connect(nsslId, START, startConstraintId, START, marginStart) 92 if ( 93 !SceneContainerFlag.isEnabled || 94 horizontalPosition !is HorizontalPosition.FloatAtStart 95 ) { 96 connect(nsslId, END, PARENT_ID, END, marginEnd) 97 } 98 connect(nsslId, BOTTOM, PARENT_ID, BOTTOM, marginBottom) 99 connect(nsslId, TOP, PARENT_ID, TOP, marginTop) 100 } 101 constraintSet.applyTo(this) 102 } 103 } 104