107 lines
3.6 KiB
Kotlin
107 lines
3.6 KiB
Kotlin
/*
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* SPDX-License-Identifier: MPL-2.0
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* Copyright © 2020 Skyline Team and Contributors (https://github.com/skyline-emu/)
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*/
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package emu.skyline
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import android.content.Intent
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import android.os.Bundle
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import android.view.KeyEvent
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import androidx.appcompat.app.AppCompatActivity
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import androidx.preference.PreferenceFragmentCompat
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import androidx.preference.PreferenceGroup
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import emu.skyline.preference.ActivityResultDelegate
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import emu.skyline.preference.DocumentActivity
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import kotlinx.android.synthetic.main.titlebar.*
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class SettingsActivity : AppCompatActivity() {
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/**
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* This is the instance of [PreferenceFragment] that is shown inside [R.id.settings]
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*/
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private val preferenceFragment = PreferenceFragment()
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/**
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* This initializes all of the elements in the activity and displays the settings fragment
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*/
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override fun onCreate(savedInstanceState : Bundle?) {
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super.onCreate(savedInstanceState)
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setContentView(R.layout.settings_activity)
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setSupportActionBar(toolbar)
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supportActionBar?.setDisplayHomeAsUpEnabled(true)
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supportFragmentManager
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.beginTransaction()
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.replace(R.id.settings, preferenceFragment)
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.commit()
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}
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/**
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* This is used to refresh the preferences after [DocumentActivity] or [emu.skyline.input.ControllerActivity] has returned
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*/
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public override fun onActivityResult(requestCode : Int, resultCode : Int, data : Intent?) {
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super.onActivityResult(requestCode, resultCode, data)
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preferenceFragment.delegateActivityResult(requestCode, resultCode, data)
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}
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/**
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* This fragment is used to display all of the preferences
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*/
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class PreferenceFragment : PreferenceFragmentCompat() {
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private var requestCodeCounter = 0
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/**
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* Delegates activity result to all preferences which implement [ActivityResultDelegate]
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*/
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fun delegateActivityResult(requestCode : Int, resultCode : Int, data : Intent?) {
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preferenceScreen.delegateActivityResult(requestCode, resultCode, data)
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}
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/**
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* This constructs the preferences from [R.xml.preferences]
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*/
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override fun onCreatePreferences(savedInstanceState : Bundle?, rootKey : String?) {
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setPreferencesFromResource(R.xml.preferences, rootKey)
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preferenceScreen.assignActivityRequestCode()
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}
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private fun PreferenceGroup.assignActivityRequestCode() {
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for (i in 0 until preferenceCount) {
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when (val pref = getPreference(i)) {
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is PreferenceGroup -> pref.assignActivityRequestCode()
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is ActivityResultDelegate -> pref.requestCode = requestCodeCounter++
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}
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}
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}
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private fun PreferenceGroup.delegateActivityResult(requestCode : Int, resultCode : Int, data : Intent?) {
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for (i in 0 until preferenceCount) {
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when (val pref = getPreference(i)) {
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is PreferenceGroup -> pref.delegateActivityResult(requestCode, resultCode, data)
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is ActivityResultDelegate -> pref.onActivityResult(requestCode, resultCode, data)
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}
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}
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}
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}
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/**
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* This handles on calling [onBackPressed] when [KeyEvent.KEYCODE_BUTTON_B] is lifted
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*/
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override fun onKeyUp(keyCode : Int, event : KeyEvent?) : Boolean {
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if (keyCode == KeyEvent.KEYCODE_BUTTON_B) {
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onBackPressed()
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return true
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}
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return super.onKeyUp(keyCode, event)
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}
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override fun finish() {
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setResult(RESULT_OK)
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super.finish()
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}
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}
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