| /* |
| * Copyright (C) 2019 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.permissioncontroller.permission.data |
| |
| import android.app.Application |
| import android.content.pm.PackageManager.GET_PERMISSIONS |
| import android.content.pm.PackageManager.MATCH_ALL |
| import android.os.UserHandle |
| import android.util.Log |
| import com.android.permissioncontroller.PermissionControllerApplication |
| import com.android.permissioncontroller.permission.model.livedatatypes.LightPackageInfo |
| import kotlinx.coroutines.Job |
| |
| /** |
| * A LiveData which tracks all of the packageinfos installed for a given user. |
| * |
| * @param app The current application |
| * @param user The user whose packages are desired |
| */ |
| class UserPackageInfosLiveData private constructor( |
| private val app: Application, |
| private val user: UserHandle |
| ) : SmartAsyncMediatorLiveData<@kotlin.jvm.JvmSuppressWildcards List<LightPackageInfo>>(), |
| PackageBroadcastReceiver.PackageBroadcastListener, |
| PermissionListenerMultiplexer.PermissionChangeCallback { |
| |
| /** |
| * Whether or not the permissions in this liveData are out of date |
| */ |
| var permChangeStale = false |
| |
| override fun onPackageUpdate(packageName: String) { |
| updateAsync() |
| } |
| |
| // TODO ntmyren: replace with correctly updating |
| override fun onPermissionChange() { |
| permChangeStale = true |
| for (packageInfo in value ?: emptyList()) { |
| PermissionListenerMultiplexer.removeCallback(packageInfo.uid, this) |
| } |
| } |
| |
| override fun setValue(newValue: List<LightPackageInfo>?) { |
| if (newValue != value) { |
| for (packageInfo in value ?: emptyList()) { |
| PermissionListenerMultiplexer.removeCallback(packageInfo.uid, this) |
| } |
| for (packageInfo in newValue ?: emptyList()) { |
| PermissionListenerMultiplexer.addCallback(packageInfo.uid, this) |
| } |
| } |
| super.setValue(newValue) |
| permChangeStale = false |
| } |
| |
| /** |
| * Get all of the packages in the system, organized by user. |
| */ |
| override suspend fun loadDataAndPostValue(job: Job) { |
| if (job.isCancelled) { |
| return |
| } |
| // TODO ntmyren: remove once b/154796729 is fixed |
| Log.i("UserPackageInfos", "updating UserPackageInfosLiveData for user " + |
| "${user.identifier}") |
| val packageInfos = app.applicationContext.packageManager |
| .getInstalledPackagesAsUser(GET_PERMISSIONS or MATCH_ALL, user.identifier) |
| |
| postValue(packageInfos.map { packageInfo -> LightPackageInfo(packageInfo) }) |
| } |
| |
| override fun onActive() { |
| super.onActive() |
| |
| PackageBroadcastReceiver.addAllCallback(this) |
| |
| for (packageInfo in value ?: emptyList()) { |
| PermissionListenerMultiplexer.addCallback(packageInfo.uid, this) |
| } |
| |
| updateAsync() |
| } |
| |
| override fun onInactive() { |
| super.onInactive() |
| |
| for (packageInfo in value ?: emptyList()) { |
| PermissionListenerMultiplexer.removeCallback(packageInfo.uid, this) |
| } |
| |
| PackageBroadcastReceiver.removeAllCallback(this) |
| } |
| |
| /** |
| * Repository for UserPackageInfosLiveDatas. |
| * <p> Key value is a UserHandle, value is its corresponding LiveData. |
| */ |
| companion object : DataRepository<UserHandle, UserPackageInfosLiveData>() { |
| override fun newValue(key: UserHandle): UserPackageInfosLiveData { |
| return UserPackageInfosLiveData(PermissionControllerApplication.get(), key) |
| } |
| } |
| } |