Convert MailboxErrorDialog to AlertDialog

briar-desktop/src/main/kotlin/org/briarproject/briar/desktop/mailbox/MailboxErrorDialog.kt

 /*
  * Briar Desktop
- * Copyright (C) 2021-2022 The Briar Project
+ * Copyright (C) 2021-2023 The Briar Project
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU Affero General Public License as
@@ -18,71 +18,54 @@
 
 package org.briarproject.briar.desktop.mailbox
 
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.defaultMinSize
 import androidx.compose.foundation.layout.padding
+import androidx.compose.material.AlertDialog
 import androidx.compose.material.Button
-import androidx.compose.material.Scaffold
-import androidx.compose.material.Surface
+import androidx.compose.material.ExperimentalMaterialApi
 import androidx.compose.material.Text
-import androidx.compose.material.rememberScaffoldState
 import androidx.compose.runtime.Composable
-import androidx.compose.runtime.mutableStateOf
-import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.unit.dp
-import androidx.compose.ui.window.Dialog
-import androidx.compose.ui.window.WindowPosition
-import androidx.compose.ui.window.rememberDialogState
 import org.briarproject.bramble.api.mailbox.MailboxPairingState
 import org.briarproject.briar.desktop.mailbox.MailboxPairingUiState.OfflineWhenPairing
 import org.briarproject.briar.desktop.mailbox.MailboxPairingUiState.Pairing
 import org.briarproject.briar.desktop.mailbox.MailboxPairingUiState.WasUnpaired
 import org.briarproject.briar.desktop.utils.InternationalizationUtils.i18n
 import org.briarproject.briar.desktop.utils.PreviewUtils.preview
-import java.awt.Dimension
 
-fun main() = preview {
-    val visible = mutableStateOf(true)
-    MailboxErrorDialog(OfflineWhenPairing, visible.value) { visible.value = false }
+@Suppress("HardCodedStringLiteral")
+fun main() = preview("visible" to true) {
+    val visible = getBooleanParameter("visible")
+    MailboxErrorDialog(OfflineWhenPairing, visible) { setBooleanParameter("visible", false) }
 }
 
 @Composable
+@OptIn(ExperimentalMaterialApi::class)
 fun MailboxErrorDialog(
     state: MailboxPairingUiState,
     visible: Boolean,
     onDismissed: () -> Unit,
 ) {
     if (!visible) return
-    Dialog(
-        title = i18n("mailbox.setup.error.title"),
-        onCloseRequest = onDismissed,
-        state = rememberDialogState(
-            position = WindowPosition(Alignment.Center),
-        ),
-    ) {
-        window.minimumSize = Dimension(360, 180)
-        val scaffoldState = rememberScaffoldState()
-        Surface {
-            Scaffold(
-                modifier = Modifier
-                    .padding(horizontal = 24.dp)
-                    .padding(top = 24.dp, bottom = 12.dp),
-                scaffoldState = scaffoldState,
-                content = {
-                    Text(
-                        text = state.getError(),
-                    )
-                },
-                bottomBar = {
-                    Button(
-                        onClick = onDismissed,
-                        modifier = Modifier.padding(start = 8.dp)
-                    ) {
-                        Text(i18n("ok"))
-                    }
-                },
-            )
-        }
-    }
+    AlertDialog(
+        title = { Text(i18n("mailbox.setup.error.title")) },
+        onDismissRequest = onDismissed,
+        text = {
+            // Add empty box here with a minimum size to prevent overly narrow dialog
+            Box(modifier = Modifier.defaultMinSize(300.dp))
+            Text(text = state.getError())
+        },
+        confirmButton = {
+            Button(
+                onClick = onDismissed,
+                modifier = Modifier.padding(start = 8.dp)
+            ) {
+                Text(i18n("ok"))
+            }
+        },
+    )
 }
 
 private fun MailboxPairingUiState.getError(): String = when (this) {