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 18 package com.android.systemui.keyguard.ui.view.layout.sections 19 20 import android.content.Context 21 import android.view.View 22 import android.view.ViewGroup 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.PARENT_ID 27 import com.android.systemui.keyguard.shared.model.KeyguardSection 28 import com.android.systemui.keyguard.ui.view.KeyguardRootView 29 import com.android.systemui.keyguard.ui.viewmodel.KeyguardClockViewModel 30 import com.android.systemui.res.R 31 import com.android.systemui.shade.ShadeDisplayAware 32 import javax.inject.Inject 33 34 /** Adds a layer to group elements for translation for burn-in preventation */ 35 class AodBurnInSection 36 @Inject 37 constructor( 38 @ShadeDisplayAware private val context: Context, 39 private val rootView: KeyguardRootView, 40 private val clockViewModel: KeyguardClockViewModel, 41 ) : KeyguardSection() { 42 private lateinit var burnInLayer: AodBurnInLayer 43 // The burn-in layer requires at least 1 view at all times <lambda>null44 private val emptyView: View by lazy { 45 View(context, null).apply { 46 id = R.id.burn_in_layer_empty_view 47 visibility = View.GONE 48 } 49 } 50 addViewsnull51 override fun addViews(constraintLayout: ConstraintLayout) { 52 if (emptyView.parent != null) { 53 // As emptyView is lazy, it might be already attached. 54 (emptyView.parent as? ViewGroup)?.removeView(emptyView) 55 } 56 constraintLayout.addView(emptyView) 57 burnInLayer = 58 AodBurnInLayer(context).apply { 59 id = R.id.burn_in_layer 60 registerListener(rootView) 61 addView(emptyView) 62 } 63 constraintLayout.addView(burnInLayer) 64 } 65 bindDatanull66 override fun bindData(constraintLayout: ConstraintLayout) { 67 clockViewModel.burnInLayer = burnInLayer 68 } 69 applyConstraintsnull70 override fun applyConstraints(constraintSet: ConstraintSet) { 71 constraintSet.apply { 72 // The empty view should not occupy any space 73 constrainHeight(R.id.burn_in_layer_empty_view, 1) 74 constrainWidth(R.id.burn_in_layer_empty_view, 0) 75 connect(R.id.burn_in_layer_empty_view, BOTTOM, PARENT_ID, BOTTOM) 76 } 77 } 78 removeViewsnull79 override fun removeViews(constraintLayout: ConstraintLayout) { 80 burnInLayer.unregisterListener(rootView) 81 constraintLayout.removeView(R.id.burn_in_layer) 82 } 83 } 84