134 lines
4.9 KiB
Kotlin
134 lines
4.9 KiB
Kotlin
package com.tarkvaraprojekt.mobileauthapp
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import android.app.AlertDialog
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import android.content.Intent
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import android.os.Bundle
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import android.util.TypedValue
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import android.view.LayoutInflater
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import android.view.View
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import android.view.ViewGroup
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import android.widget.TextView
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import android.widget.Toast
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import androidx.appcompat.app.AppCompatActivity
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import androidx.core.widget.addTextChangedListener
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import androidx.fragment.app.Fragment
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import androidx.fragment.app.activityViewModels
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import androidx.navigation.fragment.findNavController
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import androidx.navigation.fragment.navArgs
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import com.google.android.material.snackbar.Snackbar
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import com.tarkvaraprojekt.mobileauthapp.databinding.FragmentCanBinding
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import com.tarkvaraprojekt.mobileauthapp.model.SmartCardViewModel
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import org.w3c.dom.Text
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/**
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* Fragment that deals with asking the user for a six digit CAN. If the CAN is already saved
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* then the fragment is skipped immediately and if the CAN is not saved then the user
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* is asked whether it should be saved for the future or not before continuing.
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*/
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class CanFragment : Fragment() {
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private val viewModel: SmartCardViewModel by activityViewModels()
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private var _binding: FragmentCanBinding? = null
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private val binding get() = _binding!!
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// Navigation arguments:
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// saving = true means that we are navigating here from the settings menu and must return to the settings menu.
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private val args: CanFragmentArgs by navArgs()
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override fun onCreateView(
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inflater: LayoutInflater,
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container: ViewGroup?,
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savedInstanceState: Bundle?
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): View? {
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_binding = FragmentCanBinding.inflate(inflater, container, false)
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return binding.root
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}
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override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
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super.onViewCreated(view, savedInstanceState)
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checkIfSkip()
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binding.canTextField.editText?.addTextChangedListener {
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checkEnteredCan()
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}
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binding.buttonCancel.setOnClickListener { goToTheStart() }
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}
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/**
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* Checks if the current fragment can be skipped or not.
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* If the user has CAN saved on the device there is no need to ask it again.
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*/
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private fun checkIfSkip() {
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if (viewModel.userCan.length == 6) {
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goToTheNextFragment()
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}
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}
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/**
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* Takes user to the next fragment, which is PinFragment.
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*/
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private fun goToTheNextFragment() {
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val action = CanFragmentDirections.actionCanFragmentToPinFragment(auth = args.auth, mobile = args.mobile)
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findNavController().navigate(action)
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}
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/**
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* Navigates the user back to the start depending on where the user arrived.
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* If the user arrived from the settings menu then the start is the settings menu
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* not the HomeFragment.
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*/
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private fun goToTheStart() {
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if (args.saving) {
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if (args.fromhome) {
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findNavController().navigate(R.id.action_canFragment_to_homeFragment)
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} else {
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findNavController().navigate(R.id.action_canFragment_to_settingsFragment)
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}
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} else if (args.auth || args.mobile) {
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if (args.mobile) {
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val resultIntent = Intent()
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requireActivity().setResult(AppCompatActivity.RESULT_CANCELED, resultIntent)
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requireActivity().finish()
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} else {
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(activity as MainActivity).returnError(444)
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requireActivity().finishAndRemoveTask()
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}
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} else {
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findNavController().navigate(R.id.action_canFragment_to_homeFragment)
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}
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}
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/**
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* Method that creates and shows a snackbar that tells the user that CAN has been saved
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*/
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private fun showSnackbar() {
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val snackbar = Snackbar.make(requireView(), R.string.can_status_saved, Snackbar.LENGTH_SHORT)
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val snackbarText: TextView = snackbar.view.findViewById(R.id.snackbar_text)
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snackbarText.setTextSize(TypedValue.COMPLEX_UNIT_SP, resources.getDimension(R.dimen.small_text))
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snackbar.show()
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}
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/**
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* Checks whether the user has entered a 6 digit can to the input field.
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* If yes then the user is allowed to continue otherwise the user is
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* allowed to modify the entered can.
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*/
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private fun checkEnteredCan() {
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val enteredCan = binding.canTextField.editText?.text.toString()
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if (enteredCan.length == 6) {
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viewModel.setUserCan(enteredCan)
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viewModel.storeCan(requireContext()) //Maybe storeCan should always automatically call setUserCan method as well because these methods usually are used together
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showSnackbar()
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if (args.saving) {
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goToTheStart()
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} else {
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goToTheNextFragment()
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}
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}
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}
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override fun onDestroy() {
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super.onDestroy()
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_binding = null
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}
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} |