Huge refactor for better maintainability
This commit is contained in:
Mygod
174
mobile/src/main/java/be/mygod/vpnhotspot/manage/TetherManager.kt
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174
mobile/src/main/java/be/mygod/vpnhotspot/manage/TetherManager.kt
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package be.mygod.vpnhotspot.manage
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import android.annotation.SuppressLint
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import android.arch.lifecycle.Lifecycle
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import android.arch.lifecycle.LifecycleObserver
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import android.arch.lifecycle.OnLifecycleEvent
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import android.bluetooth.BluetoothAdapter
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import android.bluetooth.BluetoothProfile
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import android.content.Intent
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import android.databinding.BaseObservable
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import android.net.Uri
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import android.os.Build
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import android.provider.Settings
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import android.support.annotation.RequiresApi
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import android.support.v7.widget.RecyclerView
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import android.view.View
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import android.widget.Toast
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import be.mygod.vpnhotspot.App.Companion.app
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import be.mygod.vpnhotspot.R
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import be.mygod.vpnhotspot.databinding.ListitemManageTetherBinding
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import be.mygod.vpnhotspot.net.TetherType
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import be.mygod.vpnhotspot.net.TetheringManager
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import be.mygod.vpnhotspot.net.wifi.WifiApManager
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import java.lang.reflect.InvocationTargetException
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abstract class TetherManager private constructor(protected val parent: TetheringFragment) : Manager(),
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TetheringManager.OnStartTetheringCallback {
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class ViewHolder(val binding: ListitemManageTetherBinding) : RecyclerView.ViewHolder(binding.root),
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View.OnClickListener {
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init {
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itemView.setOnClickListener(this)
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}
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var manager: TetherManager? = null
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set(value) {
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field = value!!
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binding.data = value.data
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}
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override fun onClick(v: View?) {
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val manager = manager!!
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val context = manager.parent.requireContext()
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if (Build.VERSION.SDK_INT >= 23 && !Settings.System.canWrite(context)) {
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manager.parent.startActivity(Intent(Settings.ACTION_MANAGE_WRITE_SETTINGS,
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Uri.parse("package:${context.packageName}")))
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return
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}
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val started = manager.isStarted
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try {
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if (started) manager.stop() else manager.start()
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} catch (e: InvocationTargetException) {
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e.printStackTrace()
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var cause: Throwable? = e
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while (cause != null) {
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cause = cause.cause
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if (cause != null && cause !is InvocationTargetException) {
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Toast.makeText(context, cause.message, Toast.LENGTH_LONG).show()
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break
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}
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}
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}
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}
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}
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/**
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* A convenient class to delegate stuff to BaseObservable.
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*/
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inner class Data : BaseObservable() {
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val tetherType get() = this@TetherManager.tetherType
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val title get() = this@TetherManager.title
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val isStarted get() = this@TetherManager.isStarted
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}
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val data = Data()
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abstract val title: CharSequence
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abstract val tetherType: TetherType
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open val isStarted get() = parent.enabledTypes.contains(tetherType)
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protected abstract fun start()
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protected abstract fun stop()
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override fun onTetheringStarted() = data.notifyChange()
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override fun onTetheringFailed() {
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app.handler.post {
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Toast.makeText(parent.requireContext(), R.string.tethering_manage_failed, Toast.LENGTH_SHORT).show()
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}
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}
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override fun bindTo(viewHolder: RecyclerView.ViewHolder) {
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(viewHolder as ViewHolder).manager = this
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}
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@RequiresApi(24)
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class Wifi(parent: TetheringFragment) : TetherManager(parent) {
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override val title get() = parent.getString(R.string.tethering_manage_wifi)
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override val tetherType get() = TetherType.WIFI
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override val type get() = VIEW_TYPE_WIFI
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override fun start() = TetheringManager.start(TetheringManager.TETHERING_WIFI, true, this)
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override fun stop() = TetheringManager.stop(TetheringManager.TETHERING_WIFI)
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}
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@RequiresApi(24)
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class Usb(parent: TetheringFragment) : TetherManager(parent) {
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override val title get() = parent.getString(R.string.tethering_manage_usb)
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override val tetherType get() = TetherType.USB
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override val type get() = VIEW_TYPE_USB
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override fun start() = TetheringManager.start(TetheringManager.TETHERING_USB, true, this)
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override fun stop() = TetheringManager.stop(TetheringManager.TETHERING_USB)
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}
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@RequiresApi(24)
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class Bluetooth(parent: TetheringFragment) : TetherManager(parent), LifecycleObserver,
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BluetoothProfile.ServiceListener {
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companion object {
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/**
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* PAN Profile
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* From BluetoothProfile.java.
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*/
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private const val PAN = 5
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private val isTetheringOn by lazy @SuppressLint("PrivateApi") {
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Class.forName("android.bluetooth.BluetoothPan").getDeclaredMethod("isTetheringOn")
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}
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}
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private var pan: BluetoothProfile? = null
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init {
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parent.lifecycle.addObserver(this)
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BluetoothAdapter.getDefaultAdapter()?.getProfileProxy(parent.requireContext(), this, PAN)
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}
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override fun onServiceDisconnected(profile: Int) {
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pan = null
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}
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override fun onServiceConnected(profile: Int, proxy: BluetoothProfile) {
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pan = proxy
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}
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@OnLifecycleEvent(Lifecycle.Event.ON_DESTROY)
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fun onDestroy() {
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pan = null
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}
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override val title get() = parent.getString(R.string.tethering_manage_bluetooth)
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override val tetherType get() = TetherType.BLUETOOTH
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override val type get() = VIEW_TYPE_BLUETOOTH
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/**
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* Based on: https://android.googlesource.com/platform/packages/apps/Settings/+/78d5efd/src/com/android/settings/TetherSettings.java
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*/
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override val isStarted: Boolean
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get() {
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val pan = pan
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return BluetoothAdapter.getDefaultAdapter()?.state == BluetoothAdapter.STATE_ON && pan != null &&
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isTetheringOn.invoke(pan) as Boolean
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}
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override fun start() = TetheringManager.start(TetheringManager.TETHERING_BLUETOOTH, true, this)
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override fun stop() {
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TetheringManager.stop(TetheringManager.TETHERING_BLUETOOTH)
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Thread.sleep(1) // give others a room to breathe
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onTetheringStarted() // force flush state
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}
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}
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@Suppress("DEPRECATION")
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@Deprecated("Not usable since API 26")
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class WifiLegacy(parent: TetheringFragment) : TetherManager(parent) {
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override val title get() = parent.getString(R.string.tethering_manage_wifi_legacy)
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override val tetherType get() = TetherType.WIFI
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override val type get() = VIEW_TYPE_WIFI_LEGACY
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override fun start() = WifiApManager.start()
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override fun stop() = WifiApManager.stop()
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}
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}
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