1 /* <lambda>null2 * Copyright (C) 2025 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 package com.android.systemui.lowlightclock 17 18 import com.android.internal.logging.UiEventLogger 19 import com.android.systemui.dagger.qualifiers.Background 20 import com.android.systemui.shared.condition.Condition 21 import javax.inject.Inject 22 import kotlinx.coroutines.CoroutineScope 23 24 /** Condition for monitoring when the device enters and exits lowlight mode. */ 25 class LowLightCondition 26 @Inject 27 constructor( 28 @Background scope: CoroutineScope, 29 private val ambientLightModeMonitor: AmbientLightModeMonitor, 30 private val uiEventLogger: UiEventLogger, 31 ) : Condition(scope) { 32 override suspend fun start() { 33 ambientLightModeMonitor.start { lowLightMode: Int -> onLowLightChanged(lowLightMode) } 34 } 35 36 override fun stop() { 37 ambientLightModeMonitor.stop() 38 39 // Reset condition met to false. 40 updateCondition(false) 41 } 42 43 override val startStrategy: Int 44 get() = // As this condition keeps the lowlight sensor active, it should only run when 45 // needed. 46 START_WHEN_NEEDED 47 48 private fun onLowLightChanged(lowLightMode: Int) { 49 if (lowLightMode == AmbientLightModeMonitor.AMBIENT_LIGHT_MODE_UNDECIDED) { 50 // Ignore undecided mode changes. 51 return 52 } 53 54 val isLowLight = lowLightMode == AmbientLightModeMonitor.AMBIENT_LIGHT_MODE_DARK 55 if (isLowLight == isConditionMet) { 56 // No change in condition, don't do anything. 57 return 58 } 59 uiEventLogger.log( 60 if (isLowLight) LowLightDockEvent.AMBIENT_LIGHT_TO_DARK 61 else LowLightDockEvent.AMBIENT_LIGHT_TO_LIGHT 62 ) 63 updateCondition(isLowLight) 64 } 65 } 66