Add dialog to backpress on create account flow

app/src/main/java/org/thoughtcrime/securesms/onboarding/OnboardingBackPressAlertDialog.kt

@@ -0,0 +1,31 @@
+package org.thoughtcrime.securesms.onboarding
+
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.res.stringResource
+import network.loki.messenger.R
+import org.thoughtcrime.securesms.ui.AlertDialog
+import org.thoughtcrime.securesms.ui.DialogButtonModel
+import org.thoughtcrime.securesms.ui.GetString
+import org.thoughtcrime.securesms.ui.color.LocalColors
+
+@Composable
+fun OnboardingBackPressAlertDialog(
+    dismissDialog: () -> Unit,
+    quit: () -> Unit
+) {
+    AlertDialog(
+        onDismissRequest = dismissDialog,
+        title = stringResource(R.string.warning),
+        text = stringResource(R.string.you_cannot_go_back_further_in_order_to_stop_loading_your_account_session_needs_to_quit),
+        buttons = listOf(
+            DialogButtonModel(
+                GetString(stringResource(R.string.quit)),
+                color = LocalColors.current.danger,
+                onClick = quit
+            ),
+            DialogButtonModel(
+                GetString(stringResource(R.string.cancel))
+            )
+        )
+    )
+}

app/src/main/java/org/thoughtcrime/securesms/onboarding/messagenotifications/MessageNotifications.kt

@@ -19,6 +19,7 @@ import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.tooling.preview.PreviewParameter
 import androidx.compose.ui.unit.dp
 import network.loki.messenger.R
+import org.thoughtcrime.securesms.onboarding.OnboardingBackPressAlertDialog
 import org.thoughtcrime.securesms.onboarding.messagenotifications.MessageNotificationsViewModel.UiState
 import org.thoughtcrime.securesms.onboarding.ui.ContinuePrimaryOutlineButton
 import org.thoughtcrime.securesms.ui.AlertDialog
@@ -57,21 +58,7 @@ internal fun MessageNotificationsScreen(
         return
     }
 
-    if (state.showDialog) AlertDialog(
-        onDismissRequest = dismissDialog,
-        title = stringResource(R.string.warning),
-        text = stringResource(R.string.you_cannot_go_back_further_in_order_to_stop_loading_your_account_session_needs_to_quit),
-        buttons = listOf(
-            DialogButtonModel(
-                GetString(stringResource(R.string.quit)),
-                color = LocalColors.current.danger,
-                onClick = quit
-            ),
-            DialogButtonModel(
-                GetString(stringResource(R.string.cancel))
-            )
-        )
-    )
+    if (state.showDialog) OnboardingBackPressAlertDialog(dismissDialog, quit)
 
     Column {
         Spacer(Modifier.weight(1f))

app/src/main/java/org/thoughtcrime/securesms/onboarding/pickname/PickDisplayName.kt

@@ -15,6 +15,7 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.tooling.preview.Preview
 import network.loki.messenger.R
+import org.thoughtcrime.securesms.onboarding.OnboardingBackPressAlertDialog
 import org.thoughtcrime.securesms.onboarding.ui.ContinuePrimaryOutlineButton
 import org.thoughtcrime.securesms.ui.LocalDimensions
 import org.thoughtcrime.securesms.ui.PreviewTheme
@@ -24,14 +25,23 @@ import org.thoughtcrime.securesms.ui.h4
 
 @Preview
 @Composable
-private fun PreviewDisplayName() {
+private fun PreviewPickDisplayName() {
     PreviewTheme {
-        DisplayName(State())
+        PickDisplayName(State())
     }
 }
 
 @Composable
-internal fun DisplayName(state: State, onChange: (String) -> Unit = {}, onContinue: () -> Unit = {}) {
+internal fun PickDisplayName(
+    state: State,
+    onChange: (String) -> Unit = {},
+    onContinue: () -> Unit = {},
+    dismissDialog: () -> Unit = {},
+    quit: () -> Unit = {}
+) {
+
+    if (state.showDialog) OnboardingBackPressAlertDialog(dismissDialog, quit)
+
     Column(
         modifier = Modifier
             .fillMaxSize()

app/src/main/java/org/thoughtcrime/securesms/onboarding/pickname/PickDisplayNameActivity.kt

@@ -53,8 +53,19 @@ class PickDisplayNameActivity : BaseActionBarActivity() {
 
     @Composable
     private fun DisplayNameScreen(viewModel: PickDisplayNameViewModel) {
-        val state = viewModel.states.collectAsState()
-        DisplayName(state.value, viewModel::onChange) { viewModel.onContinue() }
+        PickDisplayName(
+            viewModel.states.collectAsState().value,
+            viewModel::onChange,
+            viewModel::onContinue,
+            viewModel::dismissDialog
+        ) { viewModel.dismissDialog(); finish() }
+    }
+
+    override fun onBackPressed() {
+        if (viewModel.onBackPressed()) return
+
+        @Suppress("DEPRECATION")
+        super.onBackPressed()
     }
 }
 

app/src/main/java/org/thoughtcrime/securesms/onboarding/pickname/PickDisplayNameViewModel.kt

@@ -16,13 +16,17 @@ import kotlinx.coroutines.launch
 import network.loki.messenger.R
 import org.session.libsession.utilities.SSKEnvironment.ProfileManagerProtocol.Companion.NAME_PADDED_LENGTH
 import org.session.libsession.utilities.TextSecurePreferences
+import org.thoughtcrime.securesms.ApplicationContext
 import org.thoughtcrime.securesms.dependencies.ConfigFactory
+import org.thoughtcrime.securesms.onboarding.messagenotifications.MessageNotificationsViewModel
 
 internal class PickDisplayNameViewModel(
     private val loadFailed: Boolean,
     private val prefs: TextSecurePreferences,
     private val configFactory: ConfigFactory
 ): ViewModel() {
+    private val isCreateAccount = !loadFailed
+
     private val _states = MutableStateFlow(if (loadFailed) pickNewNameState() else State())
     val states = _states.asStateFlow()
 
@@ -63,6 +67,17 @@ internal class PickDisplayNameViewModel(
         }
     }
 
+    /**
+     * @return [true] if the back press was handled.
+     */
+    fun onBackPressed(): Boolean = isCreateAccount.also {
+        if (it) _states.update { it.copy(showDialog = true) }
+    }
+
+    fun dismissDialog() {
+        _states.update { it.copy(showDialog = false) }
+    }
+
     @dagger.assisted.AssistedFactory
     interface AssistedFactory {
         fun create(loadFailed: Boolean): Factory
@@ -84,6 +99,7 @@ internal class PickDisplayNameViewModel(
 data class State(
     @StringRes val title: Int = R.string.displayNamePick,
     @StringRes val description: Int = R.string.displayNameDescription,
+    val showDialog: Boolean = false,
     val isTextErrorColor: Boolean = false,
     @StringRes val error: Int? = null,
     val displayName: String = ""