1 /* 2 * 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 17 package com.android.wm.shell.desktopmode 18 19 import android.app.ActivityManager 20 import android.os.IBinder 21 import android.window.DesktopExperienceFlags 22 import android.window.WindowContainerTransaction 23 import com.android.internal.protolog.ProtoLog 24 import com.android.wm.shell.common.pip.PipDesktopState 25 import com.android.wm.shell.protolog.ShellProtoLogGroup.WM_SHELL_DESKTOP_MODE 26 27 /** 28 * Controller to perform extra handling to PiP transitions that are entering while in Desktop mode. 29 */ 30 class DesktopPipTransitionController( 31 private val desktopTasksController: DesktopTasksController, 32 private val desktopUserRepositories: DesktopUserRepositories, 33 private val pipDesktopState: PipDesktopState, 34 ) { 35 36 /** 37 * This is called by [PipTransition#handleRequest] when a request for entering PiP is received. 38 * 39 * @param wct WindowContainerTransaction that will apply these changes 40 * @param transition that will apply this transaction 41 * @param taskInfo of the task that is entering PiP 42 */ handlePipTransitionnull43 fun handlePipTransition( 44 wct: WindowContainerTransaction, 45 transition: IBinder, 46 taskInfo: ActivityManager.RunningTaskInfo, 47 ) { 48 if (!pipDesktopState.isDesktopWindowingPipEnabled()) { 49 return 50 } 51 52 // Early return if the transition is a synthetic transition that is not backed by a true 53 // system transition. 54 if (transition == DesktopTasksController.SYNTHETIC_TRANSITION) { 55 logD("handlePipTransitionIfInDesktop: SYNTHETIC_TRANSITION, not a true transition") 56 return 57 } 58 59 val taskId = taskInfo.taskId 60 val displayId = taskInfo.displayId 61 val desktopRepository = desktopUserRepositories.getProfile(taskInfo.userId) 62 if (!desktopRepository.isAnyDeskActive(displayId)) { 63 logD("handlePipTransitionIfInDesktop: PiP transition is not in Desktop session") 64 return 65 } 66 67 val deskId = 68 desktopRepository.getActiveDeskId(displayId) 69 ?: if (DesktopExperienceFlags.ENABLE_MULTIPLE_DESKTOPS_BACKEND.isTrue) { 70 logW( 71 "handlePipTransitionIfInDesktop: " + 72 "Active desk not found for display id %d", 73 displayId, 74 ) 75 return 76 } else { 77 checkNotNull(desktopRepository.getDefaultDeskId(displayId)) { 78 "$TAG: handlePipTransitionIfInDesktop: " + 79 "Expected a default desk to exist in display with id $displayId" 80 } 81 } 82 83 val isLastTask = 84 desktopRepository.isOnlyVisibleNonClosingTaskInDesk( 85 taskId = taskId, 86 deskId = deskId, 87 displayId = displayId, 88 ) 89 if (!isLastTask) { 90 logD("handlePipTransitionIfInDesktop: PiP task is not last visible task in Desk") 91 return 92 } 93 94 val desktopExitRunnable = 95 desktopTasksController.performDesktopExitCleanUp( 96 wct = wct, 97 deskId = deskId, 98 displayId = displayId, 99 willExitDesktop = true, 100 ) 101 desktopExitRunnable?.invoke(transition) 102 } 103 logWnull104 private fun logW(msg: String, vararg arguments: Any?) { 105 ProtoLog.w(WM_SHELL_DESKTOP_MODE, "%s: $msg", TAG, *arguments) 106 } 107 logDnull108 private fun logD(msg: String, vararg arguments: Any?) { 109 ProtoLog.d(WM_SHELL_DESKTOP_MODE, "%s: $msg", TAG, *arguments) 110 } 111 112 private companion object { 113 private const val TAG = "DesktopPipTransitionController" 114 } 115 } 116