fix for error in join space dialog

lib/pages/chat_list/client_chooser_button.dart

@@ -393,7 +393,6 @@ class ClientChooserButton extends StatelessWidget {
           ClassCodeUtil.joinWithClassCodeDialog(
             context,
             controller.pangeaController,
-            null,
           );
           break;
         case SettingsAction.findAConversationPartner:

lib/pages/chat_list/space_view.dart

@@ -56,8 +56,8 @@ class _SpaceViewState extends State<SpaceView> {
   // #Pangea
   @override
   void dispose() {
-    super.dispose();
     _roomSubscription?.cancel();
+    super.dispose();
   }
   // Pangea#
 
@@ -108,9 +108,15 @@ class _SpaceViewState extends State<SpaceView> {
       });
       rethrow;
     } finally {
-      setState(() {
-        loading = false;
-      });
+      // #Pangea
+      if (mounted) {
+        // Pangea#
+        setState(() {
+          loading = false;
+        });
+        // #Pangea
+      }
+      // Pangea#
     }
   }
 
@@ -482,11 +488,11 @@ class _SpaceViewState extends State<SpaceView> {
       onTapSpaceChild, and they interfere with each other */
       if (event.isMembershipUpdateByType(
             Membership.leave,
-            Matrix.of(context).client.userID!,
+            client.userID!,
           ) ||
           event.isMembershipUpdateByType(
             Membership.invite,
-            Matrix.of(context).client.userID!,
+            client.userID!,
           ) ||
           event.isSpaceChildUpdate(activeSpaceId)) {
         _refresh();

lib/pages/new_space/new_space.dart

@@ -233,10 +233,6 @@ class NewSpaceController extends State<NewSpace> {
       GoogleAnalytics.createClass(room.name, room.classCode);
       try {
         await room.invite(BotName.byEnvironment);
-        await room.setPower(
-          BotName.byEnvironment,
-          ClassDefaultValues.powerLevelOfAdmin,
-        );
       } catch (err) {
         ErrorHandler.logError(
           e: "Failed to invite pangea bot to space ${room.id}",

lib/pangea/controllers/class_controller.dart

@@ -13,7 +13,6 @@ import 'package:fluffychat/pangea/utils/error_handler.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_gen/gen_l10n/l10n.dart';
-import 'package:go_router/go_router.dart';
 import 'package:matrix/matrix.dart';
 
 import '../../widgets/matrix.dart';
@@ -132,15 +131,12 @@ class ClassController extends BaseController {
     await _pangeaController.matrixState.client.joinRoom(classChunk.roomId);
 
     setActiveSpaceIdInChatListController(classChunk.roomId);
-
     GoogleAnalytics.joinClass(classCode);
 
     ClassCodeUtil.messageSnack(
       context,
       L10n.of(context)!.welcomeToYourNewClass,
     );
-
-    context.go("/rooms");
     return;
     // P-EPIC
     // prereq - server needs ability to invite to private room. how?

lib/pangea/extensions/pangea_room_extension.dart

@@ -949,15 +949,18 @@ extension PangeaRoom on Room {
       return (eventsDefaultPowerLevel ?? 0) >=
           ClassDefaultValues.powerLevelOfAdmin;
     }
-    if (spaceChildren.isEmpty) return false;
+    int joinedRooms = 0;
     for (final child in spaceChildren) {
       if (child.roomId == null) continue;
       final Room? room = client.getRoomById(child.roomId!);
       if (room?.locked == false) {
         return false;
       }
+      if (room != null) {
+        joinedRooms += 1;
+      }
     }
-    return true;
+    return joinedRooms > 0 ? true : false;
   }
 
   Future<bool> suggestedInSpace(Room space) async {

lib/pangea/utils/class_code.dart

@@ -1,12 +1,10 @@
 import 'dart:math';
 
-import 'package:flutter/material.dart';
-
-import 'package:flutter_gen/gen_l10n/l10n.dart';
-import 'package:future_loading_dialog/future_loading_dialog.dart';
-import 'package:go_router/go_router.dart';
-
+import 'package:adaptive_dialog/adaptive_dialog.dart';
 import 'package:fluffychat/pangea/utils/error_handler.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_gen/gen_l10n/l10n.dart';
+
 import '../controllers/pangea_controller.dart';
 
 class ClassCodeUtil {
@@ -23,59 +21,32 @@ class ClassCodeUtil {
         .join();
   }
 
-  static void joinWithClassCodeDialog(
-    BuildContext outerContext,
+  static Future<void> joinWithClassCodeDialog(
+    BuildContext context,
     PangeaController pangeaController,
-    String? classCode,
-  ) {
-    final TextEditingController textFieldController = TextEditingController(
-      text: classCode,
+  ) async {
+    final List<String>? classCode = await showTextInputDialog(
+      context: context,
+      title: L10n.of(context)!.joinWithClassCode,
+      okLabel: L10n.of(context)!.ok,
+      cancelLabel: L10n.of(context)!.cancel,
+      textFields: [
+        DialogTextField(hintText: L10n.of(context)!.joinWithClassCodeHint),
+      ],
     );
+    if (classCode == null || classCode.single.isEmpty) return;
 
-    showDialog(
-      context: outerContext,
-      useRootNavigator: false,
-      builder: (BuildContext context) => Scaffold(
-        backgroundColor: Colors.transparent,
-        body: AlertDialog(
-          title: Text(L10n.of(context)!.joinWithClassCode),
-          content: TextField(
-            controller: textFieldController,
-            decoration: InputDecoration(
-              hintText: L10n.of(context)!.joinWithClassCodeHint,
-            ),
-          ),
-          actions: [
-            TextButton(
-              child: Text(L10n.of(context)!.cancel),
-              onPressed: () => Navigator.of(context).pop(),
-            ),
-            TextButton(
-              child: Text(L10n.of(context)!.ok),
-              onPressed: () => showFutureLoadingDialog(
-                context: context,
-                future: () async {
-                  try {
-                    await pangeaController.classController.joinClasswithCode(
-                      outerContext,
-                      textFieldController.text,
-                    );
-                  } catch (err) {
-                    messageSnack(
-                      outerContext,
-                      ErrorCopy(outerContext, err).body,
-                    );
-                  } finally {
-                    context.go("/rooms");
-                    Navigator.of(context).pop();
-                  }
-                },
-              ),
-            ),
-          ],
-        ),
-      ),
-    );
+    try {
+      await pangeaController.classController.joinClasswithCode(
+        context,
+        classCode.first,
+      );
+    } catch (err) {
+      messageSnack(
+        context,
+        ErrorCopy(context, err).body,
+      );
+    }
   }
 
   static messageDialog(