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 package com.android.quickstep.util.unfold 17 18 import androidx.annotation.AnyThread 19 import androidx.annotation.FloatRange 20 import com.android.launcher3.util.Executors.MAIN_EXECUTOR 21 import com.android.systemui.unfold.UnfoldTransitionProgressProvider 22 import com.android.systemui.unfold.UnfoldTransitionProgressProvider.TransitionProgressListener 23 import com.android.systemui.unfold.progress.IUnfoldTransitionListener 24 import com.android.systemui.unfold.progress.UnfoldRemoteFilter 25 26 /** Receives unfold events from remote senders (System UI). */ 27 class ProxyUnfoldTransitionProvider : 28 UnfoldTransitionProgressProvider, IUnfoldTransitionListener.Stub() { 29 30 private val listeners: MutableSet<TransitionProgressListener> = mutableSetOf() 31 private val delegate = UnfoldRemoteFilter(ProcessedProgressListener()) 32 33 private var transitionStarted = false 34 var isActive = false 35 set(value) { 36 field = value 37 if (!value) { 38 // Finish any active transition 39 onTransitionFinished() 40 } 41 } 42 43 @AnyThread onTransitionStartednull44 override fun onTransitionStarted() { 45 MAIN_EXECUTOR.execute(delegate::onTransitionStarted) 46 } 47 48 @AnyThread onTransitionProgressnull49 override fun onTransitionProgress(progress: Float) { 50 MAIN_EXECUTOR.execute { delegate.onTransitionProgress(progress) } 51 } 52 53 @AnyThread onTransitionFinishednull54 override fun onTransitionFinished() { 55 MAIN_EXECUTOR.execute(delegate::onTransitionFinished) 56 } 57 addCallbacknull58 override fun addCallback(listener: TransitionProgressListener) { 59 listeners += listener 60 if (transitionStarted) { 61 // Update the listener in case there was is an active transition 62 listener.onTransitionStarted() 63 } 64 } 65 removeCallbacknull66 override fun removeCallback(listener: TransitionProgressListener) { 67 listeners -= listener 68 if (transitionStarted) { 69 // Finish the transition if it was already running 70 listener.onTransitionFinished() 71 } 72 } 73 destroynull74 override fun destroy() { 75 listeners.clear() 76 } 77 78 private inner class ProcessedProgressListener : TransitionProgressListener { onTransitionStartednull79 override fun onTransitionStarted() { 80 if (!transitionStarted) { 81 transitionStarted = true 82 listeners.forEach(TransitionProgressListener::onTransitionStarted) 83 } 84 } 85 onTransitionProgressnull86 override fun onTransitionProgress(@FloatRange(from = 0.0, to = 1.0) progress: Float) { 87 listeners.forEach { it.onTransitionProgress(progress) } 88 } 89 onTransitionFinishednull90 override fun onTransitionFinished() { 91 if (transitionStarted) { 92 transitionStarted = false 93 listeners.forEach(TransitionProgressListener::onTransitionFinished) 94 } 95 } 96 } 97 } 98