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/*
* Copyright © 2019 WireGuard LLC. All Rights Reserved.
* SPDX-License-Identifier: Apache-2.0
*/
package com.wireguard.android.preference
import android.annotation.SuppressLint
import android.content.Context
import android.content.Intent
import android.system.OsConstants
import android.util.AttributeSet
import android.widget.Toast
import androidx.preference.Preference
import com.wireguard.android.Application
import com.wireguard.android.R
import com.wireguard.android.activity.SettingsActivity
import com.wireguard.android.util.ErrorMessages
import kotlin.system.exitProcess
class ModuleDownloaderPreference(context: Context, attrs: AttributeSet?) : Preference(context, attrs) {
private var state = State.INITIAL
override fun getSummary() = context.getString(state.messageResourceId)
override fun getTitle() = context.getString(R.string.module_installer_title)
override fun onClick() {
setState(State.WORKING)
Application.getAsyncWorker().supplyAsync(Application.getModuleLoader()::download).whenComplete(this::onDownloadResult)
}
@SuppressLint("ApplySharedPref")
private fun onDownloadResult(result: Int, throwable: Throwable?) {
when {
throwable != null -> {
setState(State.FAILURE)
Toast.makeText(context, ErrorMessages[throwable], Toast.LENGTH_LONG).show()
}
result == OsConstants.ENOENT -> setState(State.NOTFOUND)
result == OsConstants.EXIT_SUCCESS -> {
setState(State.SUCCESS)
Application.getSharedPreferences().edit().remove("disable_kernel_module").commit()
Application.getAsyncWorker().runAsync {
val restartIntent = Intent(context, SettingsActivity::class.java)
restartIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP)
restartIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
Application.get().startActivity(restartIntent)
exitProcess(0)
}
}
else -> setState(State.FAILURE)
}
}
private fun setState(state: State) {
if (this.state == state) return
this.state = state
if (isEnabled != state.shouldEnableView) isEnabled = state.shouldEnableView
notifyChanged()
}
private enum class State(val messageResourceId: Int, val shouldEnableView: Boolean) {
INITIAL(R.string.module_installer_initial, true),
FAILURE(R.string.module_installer_error, true),
WORKING(R.string.module_installer_working, false),
SUCCESS(R.string.success_application_will_restart, false),
NOTFOUND(R.string.module_installer_not_found, false);
}
}
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