1 /* <lambda>null2 * Copyright (C) 2022 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.keyguard.ui.viewmodel 18 19 import com.android.systemui.keyguard.domain.interactor.LightRevealScrimInteractor 20 import com.android.systemui.statusbar.LightRevealEffect 21 import javax.inject.Inject 22 import kotlinx.coroutines.flow.Flow 23 import kotlinx.coroutines.flow.map 24 25 /** 26 * Models UI state for the light reveal scrim, which is used during screen on and off animations to 27 * draw a gradient that reveals/hides the contents of the screen. 28 */ 29 class LightRevealScrimViewModel 30 @Inject 31 constructor(private val interactor: LightRevealScrimInteractor) { 32 val lightRevealEffect: Flow<LightRevealEffect> = interactor.lightRevealEffect 33 val revealAmount: Flow<Float> = interactor.revealAmount 34 35 /** Max alpha for the scrim + whether to animate the change */ 36 val maxAlpha: Flow<Pair<Float, Boolean>> = 37 interactor.maxAlpha.map { alpha -> 38 Pair( 39 alpha, 40 // Darken immediately if going to be fully opaque 41 if (alpha == 1f) false else true, 42 ) 43 } 44 45 fun setWallpaperSupportsAmbientMode(supportsAmbientMode: Boolean) { 46 interactor.setWallpaperSupportsAmbientMode(supportsAmbientMode) 47 } 48 } 49