Fix phone number autofill in Registration V2.

app/src/main/java/org/thoughtcrime/securesms/registration/v2/ui/RegistrationV2State.kt

@@ -5,7 +5,10 @@
 
 package org.thoughtcrime.securesms.registration.v2.ui
 
+import com.google.i18n.phonenumbers.NumberParseException
+import com.google.i18n.phonenumbers.PhoneNumberUtil
 import com.google.i18n.phonenumbers.Phonenumber
+import org.signal.core.util.logging.Log
 import org.thoughtcrime.securesms.keyvalue.SignalStore
 import org.thoughtcrime.securesms.registration.v2.data.network.Challenge
 import org.whispersystems.signalservice.internal.push.AuthCredentials
@@ -16,7 +19,7 @@ import org.whispersystems.signalservice.internal.push.AuthCredentials
 data class RegistrationV2State(
   val sessionId: String? = null,
   val enteredCode: String = "",
-  val phoneNumber: Phonenumber.PhoneNumber? = null,
+  val phoneNumber: Phonenumber.PhoneNumber? = fetchExistingE164FromValues(),
   val inProgress: Boolean = false,
   val isReRegister: Boolean = false,
   val recoveryPassword: String? = SignalStore.svr().getRecoveryPassword(),
@@ -43,4 +46,22 @@ data class RegistrationV2State(
   val networkError: Throwable? = null
 ) {
   val challengesRemaining: List<Challenge> = challengesRequested.filterNot { it in challengesPresented }
+
+  companion object {
+    private val TAG = Log.tag(RegistrationV2State::class)
+
+    private fun fetchExistingE164FromValues(): Phonenumber.PhoneNumber? {
+      val existingE164 = SignalStore.registrationValues().sessionE164
+      if (existingE164 != null) {
+        try {
+          return PhoneNumberUtil.getInstance().parse(existingE164, null)
+        } catch (ex: NumberParseException) {
+          Log.w(TAG, "Could not parse stored E164.", ex)
+          return null
+        }
+      } else {
+        return null
+      }
+    }
+  }
 }

app/src/main/java/org/thoughtcrime/securesms/registration/v2/ui/RegistrationV2ViewModel.kt

@@ -10,8 +10,6 @@ import android.content.Context
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.asLiveData
 import androidx.lifecycle.viewModelScope
-import com.google.i18n.phonenumbers.NumberParseException
-import com.google.i18n.phonenumbers.PhoneNumberUtil
 import com.google.i18n.phonenumbers.Phonenumber
 import kotlinx.coroutines.CoroutineExceptionHandler
 import kotlinx.coroutines.Dispatchers
@@ -106,19 +104,8 @@ class RegistrationV2ViewModel : ViewModel() {
   val isReregister: Boolean
     get() = store.value.isReRegister
 
-  init {
-    val existingE164 = SignalStore.registrationValues().sessionE164
-    if (existingE164 != null) {
-      try {
-        val existingPhoneNumber = PhoneNumberUtil.getInstance().parse(existingE164, null)
-        if (existingPhoneNumber != null) {
-          setPhoneNumber(existingPhoneNumber)
-        }
-      } catch (ex: NumberParseException) {
-        Log.w(TAG, "Could not parse stored E164.", ex)
-      }
-    }
-  }
+  val phoneNumber: Phonenumber.PhoneNumber?
+    get() = store.value.phoneNumber
 
   fun maybePrefillE164(context: Context) {
     Log.v(TAG, "maybePrefillE164()")

app/src/main/java/org/thoughtcrime/securesms/registration/v2/ui/grantpermissions/GrantPermissionsV2Fragment.kt

@@ -19,6 +19,7 @@ import androidx.compose.ui.platform.LocalContext
 import androidx.core.content.ContextCompat
 import androidx.fragment.app.activityViewModels
 import androidx.navigation.fragment.NavHostFragment
+import androidx.navigation.fragment.findNavController
 import androidx.navigation.fragment.navArgs
 import org.signal.core.util.logging.Log
 import org.thoughtcrime.securesms.compose.ComposeFragment
@@ -101,7 +102,7 @@ class GrantPermissionsV2Fragment : ComposeFragment() {
 
   private fun proceedToNextScreen() {
     when (welcomeAction) {
-      WelcomeAction.CONTINUE -> NavHostFragment.findNavController(this).safeNavigate(GrantPermissionsV2FragmentDirections.actionEnterPhoneNumber())
+      WelcomeAction.CONTINUE -> findNavController().safeNavigate(GrantPermissionsV2FragmentDirections.actionEnterPhoneNumber())
       WelcomeAction.RESTORE_BACKUP -> {
         val restoreIntent = RestoreActivity.getIntentForRestore(requireActivity())
         launchRestoreActivity.launch(restoreIntent)

app/src/main/java/org/thoughtcrime/securesms/registration/v2/ui/phonenumber/EnterPhoneNumberV2Fragment.kt

@@ -130,15 +130,7 @@ class EnterPhoneNumberV2Fragment : LoggingFragment(R.layout.fragment_registratio
     fragmentViewModel.uiState.observe(viewLifecycleOwner) { fragmentState ->
 
       fragmentState.phoneNumberFormatter?.let {
-        if (it != currentPhoneNumberFormatter) {
-          currentPhoneNumberFormatter?.let { oldWatcher ->
-            Log.d(TAG, "Removing current phone number formatter in fragment")
-            phoneNumberInputLayout.removeTextChangedListener(oldWatcher)
-          }
-          phoneNumberInputLayout.addTextChangedListener(it)
-          currentPhoneNumberFormatter = it
-          Log.d(TAG, "Updating phone number formatter in fragment")
-        }
+        bindPhoneNumberFormatter(it)
       }
 
       if (fragmentViewModel.isEnteredNumberValid(fragmentState)) {
@@ -154,19 +146,33 @@ class EnterPhoneNumberV2Fragment : LoggingFragment(R.layout.fragment_registratio
 
     initializeInputFields()
 
-    val existingPhoneNumber = sharedViewModel.uiState.value?.phoneNumber
+    val existingPhoneNumber = sharedViewModel.phoneNumber
     if (existingPhoneNumber != null) {
       fragmentViewModel.restoreState(existingPhoneNumber)
-      fragmentViewModel.phoneNumber()?.let {
-        phoneNumberInputLayout.setText(it.nationalNumber.toString())
+      spinnerView.setText(existingPhoneNumber.countryCode.toString())
+      fragmentViewModel.formatter?.let {
+        bindPhoneNumberFormatter(it)
       }
+      phoneNumberInputLayout.setText(existingPhoneNumber.nationalNumber.toString())
+    } else {
+      spinnerView.setText(fragmentViewModel.countryPrefix().toString())
     }
 
-    spinnerView.setText(fragmentViewModel.countryPrefix().toString())
-
     ViewUtil.focusAndShowKeyboard(phoneNumberInputLayout)
   }
 
+  private fun bindPhoneNumberFormatter(formatter: TextWatcher) {
+    if (formatter != currentPhoneNumberFormatter) {
+      currentPhoneNumberFormatter?.let { oldWatcher ->
+        Log.d(TAG, "Removing current phone number formatter in fragment")
+        phoneNumberInputLayout.removeTextChangedListener(oldWatcher)
+      }
+      phoneNumberInputLayout.addTextChangedListener(formatter)
+      currentPhoneNumberFormatter = formatter
+      Log.d(TAG, "Updating phone number formatter in fragment")
+    }
+  }
+
   private fun handleChallenges(remainingChallenges: List<Challenge>) {
     when (remainingChallenges.first()) {
       Challenge.CAPTCHA -> moveToCaptcha()
@@ -187,11 +193,13 @@ class EnterPhoneNumberV2Fragment : LoggingFragment(R.layout.fragment_registratio
     phoneNumberInputLayout.addTextChangedListener {
       fragmentViewModel.setPhoneNumber(it?.toString())
     }
+
     phoneNumberInputLayout.onFocusChangeListener = View.OnFocusChangeListener { _: View?, hasFocus: Boolean ->
       if (hasFocus) {
         binding.scrollView.postDelayed({ binding.scrollView.smoothScrollTo(0, binding.registerButton.bottom) }, 250)
       }
     }
+
     phoneNumberInputLayout.imeOptions = EditorInfo.IME_ACTION_DONE
     phoneNumberInputLayout.setOnEditorActionListener { v: TextView?, actionId: Int, _: KeyEvent? ->
       if (actionId == EditorInfo.IME_ACTION_DONE && v != null) {
@@ -298,7 +306,7 @@ class EnterPhoneNumberV2Fragment : LoggingFragment(R.layout.fragment_registratio
       is VerificationCodeRequestResult.ExternalServiceFailure -> presentRemoteErrorDialog(getString(R.string.RegistrationActivity_unable_to_connect_to_service), skipToNextScreen)
       is VerificationCodeRequestResult.ImpossibleNumber -> {
         MaterialAlertDialogBuilder(requireContext()).apply {
-          setMessage(getString(R.string.RegistrationActivity_the_number_you_specified_s_is_invalid, fragmentViewModel.phoneNumber()?.toE164()))
+          setMessage(getString(R.string.RegistrationActivity_the_number_you_specified_s_is_invalid, fragmentViewModel.phoneNumber?.toE164()))
           setPositiveButton(android.R.string.ok, null)
           show()
         }
@@ -369,7 +377,7 @@ class EnterPhoneNumberV2Fragment : LoggingFragment(R.layout.fragment_registratio
       Dialogs.showAlertDialog(
         requireContext(),
         getString(R.string.RegistrationActivity_invalid_number),
-        getString(R.string.RegistrationActivity_the_number_you_specified_s_is_invalid, fragmentViewModel.phoneNumber()?.toE164())
+        getString(R.string.RegistrationActivity_the_number_you_specified_s_is_invalid, fragmentViewModel.phoneNumber?.toE164())
       )
     }
   }

app/src/main/java/org/thoughtcrime/securesms/registration/v2/ui/phonenumber/EnterPhoneNumberV2ViewModel.kt

@@ -6,6 +6,7 @@
 package org.thoughtcrime.securesms.registration.v2.ui.phonenumber
 
 import android.telephony.PhoneNumberFormattingTextWatcher
+import android.text.TextWatcher
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.asLiveData
 import androidx.lifecycle.viewModelScope
@@ -31,6 +32,17 @@ class EnterPhoneNumberV2ViewModel : ViewModel() {
   private val store = MutableStateFlow(EnterPhoneNumberV2State())
   val uiState = store.asLiveData()
 
+  val formatter: TextWatcher?
+    get() = store.value.phoneNumberFormatter
+
+  val phoneNumber: PhoneNumber?
+    get() = try {
+      parsePhoneNumber(store.value)
+    } catch (ex: NumberParseException) {
+      Log.w(TAG, "Could not parse phone number in current state.", ex)
+      null
+    }
+
   val supportedCountryPrefixes: List<CountryPrefix> = PhoneNumberUtil.getInstance().supportedCallingCodes
     .map { CountryPrefix(it, PhoneNumberUtil.getInstance().getRegionCodeForCountryCode(it)) }
     .sortedBy { it.digits }
@@ -45,15 +57,6 @@ class EnterPhoneNumberV2ViewModel : ViewModel() {
     return supportedCountryPrefixes[store.value.countryPrefixIndex]
   }
 
-  fun phoneNumber(): PhoneNumber? {
-    return try {
-      parsePhoneNumber(store.value)
-    } catch (ex: NumberParseException) {
-      Log.w(TAG, "Could not parse phone number in current state.", ex)
-      null
-    }
-  }
-
   fun setPhoneNumber(phoneNumber: String?) {
     store.update { it.copy(phoneNumber = phoneNumber ?: "") }
   }