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/*
* Copyright (C) 2020 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.
*/
@file:Suppress("DEPRECATION")
package com.android.permissioncontroller.permission.data
import android.app.Application
import android.content.pm.PackageManager.GET_PERMISSIONS
import android.content.pm.PackageManager.MATCH_FACTORY_ONLY
import android.content.pm.PackageManager.MATCH_UNINSTALLED_PACKAGES
import android.os.UserHandle
import com.android.permissioncontroller.PermissionControllerApplication
import com.android.permissioncontroller.permission.model.livedatatypes.LightPackageInfo
import kotlinx.coroutines.Job
/**
* A LiveData which returns all of the preinstalled packageinfos. For packages that are preinstalled
* and then updated, the preinstalled (i.e. old) version is returned.
*
* @param app The current application
* @param user The user whose packages are desired
*/
class PreinstalledUserPackageInfosLiveData private constructor(
private val app: Application,
private val user: UserHandle
) : SmartAsyncMediatorLiveData<@kotlin.jvm.JvmSuppressWildcards List<LightPackageInfo>>(
isStaticVal = true, alwaysUpdateOnActive = false
) {
/**
* Get all of the preinstalled packages in the system for this user
*/
override suspend fun loadDataAndPostValue(job: Job) {
if (job.isCancelled) {
return
}
val packageInfos = app.applicationContext.packageManager
.getInstalledPackagesAsUser(GET_PERMISSIONS or MATCH_UNINSTALLED_PACKAGES
or MATCH_FACTORY_ONLY, user.identifier)
postValue(packageInfos.map { packageInfo -> LightPackageInfo(packageInfo) })
}
override fun onActive() {
super.onActive()
// Data never changes, hence no need to reload
if (value == null) {
updateAsync()
}
}
/**
* Repository for PreinstalledUserPackageInfosLiveData.
*
* <p>Key value is a UserHandle, value is its corresponding LiveData.
*/
companion object : DataRepository<UserHandle, PreinstalledUserPackageInfosLiveData>() {
override fun newValue(key: UserHandle): PreinstalledUserPackageInfosLiveData {
return PreinstalledUserPackageInfosLiveData(PermissionControllerApplication.get(), key)
}
}
}
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