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.common 18 19 import android.content.BroadcastReceiver 20 import android.content.Context 21 import android.content.Intent 22 import android.content.IntentFilter 23 import android.content.pm.PackageManager 24 import android.os.Handler 25 import com.android.wm.shell.shared.annotations.ShellMainThread 26 import com.android.wm.shell.sysui.ShellInit 27 import java.util.function.Supplier 28 29 /** 30 * This supplies the package name of default home in an efficient way. The query to package manager 31 * only executes on initialization and when the preferred activity (e.g. default home) is changed. 32 * Note that this returns null package name if the default home is setup wizard. 33 */ 34 class DefaultHomePackageSupplier( 35 private val context: Context, 36 shellInit: ShellInit, 37 @ShellMainThread private val mainHandler: Handler, 38 ) : BroadcastReceiver(), Supplier<String?> { 39 40 private var defaultHomePackage: String? = null 41 private var isSetupWizard: Boolean = false 42 43 init { <lambda>null44 shellInit.addInitCallback({ onInit() }, this) 45 } 46 onInitnull47 private fun onInit() { 48 context.registerReceiver( 49 this, 50 IntentFilter(Intent.ACTION_PREFERRED_ACTIVITY_CHANGED), 51 null /* broadcastPermission */, 52 mainHandler, 53 ) 54 } 55 updateDefaultHomePackagenull56 private fun updateDefaultHomePackage(): String? { 57 defaultHomePackage = context.packageManager.getHomeActivities(ArrayList())?.packageName 58 isSetupWizard = 59 defaultHomePackage != null && 60 context.packageManager.resolveActivity( 61 Intent() 62 .setPackage(defaultHomePackage) 63 .addCategory(Intent.CATEGORY_SETUP_WIZARD), 64 PackageManager.MATCH_SYSTEM_ONLY, 65 ) != null 66 return defaultHomePackage 67 } 68 onReceivenull69 override fun onReceive(contxt: Context?, intent: Intent?) { 70 updateDefaultHomePackage() 71 } 72 getnull73 override fun get(): String? { 74 if (isSetupWizard) return null 75 return defaultHomePackage ?: updateDefaultHomePackage() 76 } 77 } 78