add html support

lib/helpers/extension_helper.dart

@@ -1,12 +1,10 @@
 import "package:flutter/material.dart";
-import "package:flutter/widgets.dart";
 import "package:flutter_chat_core/flutter_chat_core.dart";
 import "package:flutter_riverpod/flutter_riverpod.dart";
 import "package:matrix/matrix.dart";
 import "package:nexus/models/full_room.dart";
 import "package:nexus/widgets/error_dialog.dart";
 import "package:nexus/widgets/loading.dart";
-import "package:html2md/html2md.dart";
 
 extension BetterWhen<T> on AsyncValue<T> {
   Widget betterWhen({
@@ -39,6 +37,7 @@ extension ToMessage on Event {
         ? relationshipEventId
         : null;
     final metadata = {
+      "formatted": formattedText.isEmpty ? body : formattedText,
       "eventType": type,
       "displayName": senderFromMemoryOrFallback.displayName,
       "txnId": transactionId,
@@ -49,34 +48,34 @@ extension ToMessage on Event {
         metadata: metadata,
         id: eventId,
         authorId: senderId,
-        text: "~~This message has been redacted.~~",
+        text: "<s>This message has been redacted.</s>",
         deletedAt: redactedBecause?.originServerTs,
       );
     }
 
-    final formatted = convert(
-      formattedText.isEmpty ? body : formattedText,
-      ignore: replyId == null ? null : ["mx-reply"],
-    );
-
-    final asText = Message.text(
+    final asText =
+        Message.text(
               metadata: metadata,
               id: eventId,
               authorId: senderId,
-      text: formatted,
+              text: body,
               replyToMessageId: replyId,
               deliveredAt: originServerTs,
-    );
+            )
+            as TextMessage;
 
     if (mustBeText) return asText;
 
     return switch (type) {
+      EventTypes.Encrypted => asText.copyWith(
+        text: "Unable to decrypt message.",
+      ),
       EventTypes.Message => switch (messageType) {
         MessageTypes.Image => Message.image(
           metadata: metadata,
           id: eventId,
           authorId: senderId,
-          text: formatted,
+          text: text,
           source: (await getAttachmentUri()).toString(),
           replyToMessageId: replyId,
           deliveredAt: originServerTs,
@@ -85,7 +84,7 @@ extension ToMessage on Event {
           metadata: metadata,
           id: eventId,
           authorId: senderId,
-          text: formatted,
+          text: text,
           replyToMessageId: replyId,
           source: (await getAttachmentUri()).toString(),
           deliveredAt: originServerTs,

lib/helpers/launch_helper.dart

@@ -6,16 +6,16 @@ class LaunchHelper {
   final Ref ref;
   LaunchHelper(this.ref);
 
-  Future<void> launchUrl(Uri url, {bool useWebview = false}) async {
+  Future<bool> launchUrl(Uri url, {bool useWebview = false}) async {
     try {
-      await ul.launchUrl(
+      return await ul.launchUrl(
         url,
         mode: useWebview
             ? ul.LaunchMode.inAppBrowserView
             : ul.LaunchMode.externalApplication,
       );
     } on PlatformException catch (_) {
-      // Ignore missing intent handler error
+      return false;
     }
   }
 

lib/widgets/room_appbar.dart

@@ -38,6 +38,7 @@ class RoomAppbar extends StatelessWidget implements PreferredSizeWidget {
       crossAxisAlignment: CrossAxisAlignment.start,
       children: [
         Text(room.title, overflow: TextOverflow.ellipsis),
+        if (room.roomData.topic.isNotEmpty)
           Text(
             room.roomData.topic,
             maxLines: 1,

lib/widgets/room_chat.dart

@@ -17,6 +17,7 @@ import "package:nexus/widgets/chat_box.dart";
 import "package:nexus/widgets/member_list.dart";
 import "package:nexus/widgets/room_appbar.dart";
 import "package:nexus/widgets/top_widget.dart";
+import "package:flutter_widget_from_html_core/flutter_widget_from_html_core.dart";
 
 class RoomChat extends HookConsumerWidget {
   final bool isDesktop;
@@ -122,26 +123,24 @@ class RoomChat extends HookConsumerWidget {
                                     required bool isSentByMe,
                                     MessageGroupStatus? groupStatus,
                                   }) => FlyerChatTextMessage(
+                                    customWidget: HtmlWidget(
+                                      message.metadata?["formatted"],
+                                      customWidgetBuilder: (element) =>
+                                          element.localName == "mx-reply"
+                                          ? SizedBox.shrink()
+                                          : null,
+                                      onTapUrl: (url) => ref
+                                          .watch(LaunchHelper.provider)
+                                          .launchUrl(Uri.parse(url)),
+                                    ),
                                     topWidget: TopWidget(
                                       message,
                                       headers: room.roomData.client.headers,
                                       groupStatus: groupStatus,
                                     ),
-                                    message: message.copyWith(
-                                      text: message.text.replaceAllMapped(
-                                        urlRegex,
-                                        (match) =>
-                                            "[${match.group(0)}](${match.group(0)})",
-                                      ),
-                                    ),
+                                    message: message,
                                     showTime: true,
                                     index: index,
-                                    onLinkTap: (url, _) => ref
-                                        .watch(LaunchHelper.provider)
-                                        .launchUrl(Uri.parse(url)),
-                                    linksDecoration: TextDecoration.underline,
-                                    sentLinksColor: Colors.blue,
-                                    receivedLinksColor: Colors.blue,
                                   ),
                               linkPreviewBuilder: (_, message, isSentByMe) =>
                                   LinkPreview(

pubspec.lock

@@ -590,6 +590,14 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  flutter_widget_from_html_core:
+    dependency: "direct main"
+    description:
+      name: flutter_widget_from_html_core
+      sha256: "1120ee6ed3509ceff2d55aa6c6cbc7b6b1291434422de2411b5a59364dd6ff03"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.17.0"
   flyer_chat_file_message:
     dependency: "direct main"
     description:
@@ -617,10 +625,11 @@ packages:
   flyer_chat_text_message:
     dependency: "direct main"
     description:
-      name: flyer_chat_text_message
-      sha256: dad7a0c29803233ca55cf8318ed9962c657864dc0a464d8cb76469b9e4da07e7
-      url: "https://pub.dev"
-    source: hosted
+      path: "packages/flyer_chat_text_message"
+      ref: HEAD
+      resolved-ref: dd1b93e6dd4194b3bd934e0d9c27438ba25322cb
+      url: "https://github.com/Henry-Hiles/flutter_chat_ui"
+    source: git
     version: "2.5.2"
   freezed:
     dependency: "direct dev"
@@ -702,14 +711,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.15.6"
-  html2md:
-    dependency: "direct main"
-    description:
-      name: html2md
-      sha256: "465cf8ffa1b510fe0e97941579bf5b22e2d575f2cecb500a9c0254efe33a8036"
-      url: "https://pub.dev"
-    source: hosted
-    version: "1.3.2"
   html_unescape:
     dependency: transitive
     description:

pubspec.yaml

@@ -42,8 +42,11 @@ dependencies:
   flutter_chat_core: ^2.0.0
   flyer_chat_image_message: ^2.2.2
   flyer_chat_system_message: ^2.1.13
-  flyer_chat_text_message: ^2.5.2
   flyer_chat_file_message: ^2.3.1
+  flyer_chat_text_message:
+    git:
+      url: https://github.com/Henry-Hiles/flutter_chat_ui
+      path: packages/flyer_chat_text_message
   flutter_chat_ui:
     git:
       url: https://github.com/Henry-Hiles/flutter_chat_ui
@@ -53,8 +56,8 @@ dependencies:
   sqflite_common_ffi: ^2.3.6
   color_hash: ^1.0.1
   scaled_app: ^2.3.0
-  html2md: ^1.3.2
   flutter_vodozemac: ^0.4.1
+  flutter_widget_from_html_core: ^0.17.0
   
 dev_dependencies:
   build_runner: ^2.4.11