Add reporting functionality

lib/widgets/chat_page/chat_box.dart

@@ -54,7 +54,7 @@ class ChatBox extends HookConsumerWidget {
 
         return KeyEventResult.ignored;
       },
-    );
+    )..requestFocus();
 
     final style = TextStyle(
       color: theme.colorScheme.primary,

lib/widgets/chat_page/room_chat.dart

@@ -35,6 +35,7 @@ class RoomChat extends HookConsumerWidget {
     final replyToMessage = useState<Message?>(null);
     final memberListOpened = useState<bool>(showMembersByDefault);
     final theme = Theme.of(context);
+    final danger = theme.colorScheme.error;
 
     return ref
         .watch(SelectedRoomController.provider)
@@ -120,6 +121,37 @@ class RoomChat extends HookConsumerWidget {
                     title: Text("Delete"),
                   ),
                 ),
+              PopupMenuItem(
+                onTap: () => showDialog(
+                  context: context,
+                  builder: (context) => AlertDialog(
+                    title: Text("Report"),
+                    content: Text(
+                      "Report this message to your server administrators, who can take action like banning that user or blocking that server from federating.",
+                    ),
+                    actions: [
+                      TextButton(
+                        onPressed: Navigator.of(context).pop,
+                        child: Text("Cancel"),
+                      ),
+                      TextButton(
+                        onPressed: () {
+                          room.roomData.client.reportEvent(
+                            room.roomData.id,
+                            message.id,
+                          );
+                          Navigator.of(context).pop();
+                        },
+                        child: Text("Report"),
+                      ),
+                    ],
+                  ),
+                ),
+                child: ListTile(
+                  leading: Icon(Icons.report, color: danger),
+                  title: Text("Report", style: TextStyle(color: danger)),
+                ),
+              ),
             ];
 
             return Scaffold(

lib/widgets/chat_page/room_menu.dart

@@ -1,6 +1,8 @@
 import "package:clipboard/clipboard.dart";
 import "package:flutter/material.dart";
+import "package:flutter_hooks/flutter_hooks.dart";
 import "package:matrix/matrix.dart";
+import "package:nexus/widgets/form_text_input.dart";
 
 class RoomMenu extends StatelessWidget {
   final Room room;
@@ -51,6 +53,52 @@ class RoomMenu extends StatelessWidget {
             title: Text("Leave", style: TextStyle(color: danger)),
           ),
         ),
+        PopupMenuItem(
+          onTap: () => showDialog(
+            context: context,
+            builder: (context) => HookBuilder(
+              builder: (_) {
+                final reasonController = useTextEditingController();
+                return AlertDialog(
+                  title: Text("Report"),
+                  content: Column(
+                    mainAxisSize: MainAxisSize.min,
+                    children: [
+                      Text(
+                        "Report this room to your server administrators, who can take action like banning this room.",
+                      ),
+
+                      SizedBox(height: 12),
+                      FormTextInput(
+                        required: false,
+                        capitalize: true,
+                        controller: reasonController,
+                        title: "Reason for deletion (optional)",
+                      ),
+                    ],
+                  ),
+                  actions: [
+                    TextButton(
+                      onPressed: Navigator.of(context).pop,
+                      child: Text("Cancel"),
+                    ),
+                    TextButton(
+                      onPressed: () {
+                        room.client.reportRoom(room.id, reasonController.text);
+                        Navigator.of(context).pop();
+                      },
+                      child: Text("Report"),
+                    ),
+                  ],
+                );
+              },
+            ),
+          ),
+          child: ListTile(
+            leading: Icon(Icons.report, color: danger),
+            title: Text("Report", style: TextStyle(color: danger)),
+          ),
+        ),
       ],
     );
   }