1 /* 2 * 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.dreams 18 19 import com.android.systemui.dagger.SysUISingleton 20 import com.android.systemui.statusbar.policy.CallbackController 21 import javax.inject.Inject 22 23 /** Dream overlay-related callback information */ 24 @SysUISingleton 25 class DreamOverlayCallbackController @Inject constructor() : 26 CallbackController<DreamOverlayCallbackController.Callback> { 27 28 private val callbacks = mutableSetOf<DreamOverlayCallbackController.Callback>() 29 30 var isDreaming = false 31 private set 32 addCallbacknull33 override fun addCallback(callback: DreamOverlayCallbackController.Callback) { 34 callbacks.add(callback) 35 } 36 removeCallbacknull37 override fun removeCallback(callback: DreamOverlayCallbackController.Callback) { 38 callbacks.remove(callback) 39 } 40 onWakeUpnull41 fun onWakeUp() { 42 isDreaming = false 43 callbacks.forEach { it.onWakeUp() } 44 } 45 onStartDreamnull46 fun onStartDream() { 47 isDreaming = true 48 callbacks.forEach { it.onStartDream() } 49 } 50 51 interface Callback { 52 /** Dream overlay has ended */ onWakeUpnull53 fun onWakeUp() 54 55 /** Dream overlay has started */ 56 fun onStartDream() 57 } 58 } 59