custom link previews

lib/controllers/url_preview_controller.dart

@@ -4,13 +4,14 @@ import "package:http/http.dart";
 import "package:nexus/controllers/client_state_controller.dart";
 import "package:nexus/controllers/header_controller.dart";
 import "package:nexus/helpers/extensions/mxc_to_https.dart";
+import "package:nexus/models/open_graph_data.dart";
 
-class UrlPreviewController extends AsyncNotifier<LinkPreviewData?> {
+class UrlPreviewController extends AsyncNotifier<OpenGraphData?> {
   final String link;
   UrlPreviewController(this.link);
 
   @override
-  Future<LinkPreviewData?> build() async {
+  Future<OpenGraphData?> build() async {
     final homeserver = ref.watch(ClientStateController.provider)?.homeserverUrl;
 
     if (homeserver != null && !link.contains("matrix.to")) {
@@ -23,28 +24,15 @@ class UrlPreviewController extends AsyncNotifier<LinkPreviewData?> {
         );
 
         if (response.statusCode == 200) {
-          final decodedValue = json.decode(response.body);
-          final mxc = decodedValue["og:image"];
+          final decodedValue = json.decode(response.body) as Map?;
+          if (decodedValue?.isNotEmpty == true) return null;
+
+          final mxc = decodedValue!["og:image"];
           final image = mxc == null
               ? null
               : Uri.tryParse(mxc)?.mxcToHttps(homeserver);
 
-          return LinkPreviewData(
-            link: link,
-            title: decodedValue["og:title"],
-            description: decodedValue["og:description"],
-            image: image == null
-                ? null
-                : ImagePreviewData(
-                    url: image.toString(),
-                    width:
-                        (decodedValue["og:image:width"] as int?)?.toDouble() ??
-                        0,
-                    height:
-                        (decodedValue["og:image:height"] as int?)?.toDouble() ??
-                        0,
-                  ),
-          );
+          return OpenGraphData.fromJson({...decodedValue, "og:image": image});
         }
       }
     }
@@ -53,7 +41,7 @@ class UrlPreviewController extends AsyncNotifier<LinkPreviewData?> {
   }
 
   static final provider = AsyncNotifierProvider.autoDispose
-      .family<UrlPreviewController, LinkPreviewData?, String>(
+      .family<UrlPreviewController, OpenGraphData?, String>(
         UrlPreviewController.new,
       );
 }

lib/models/open_graph_data.dart

@@ -0,0 +1,17 @@
+import "package:freezed_annotation/freezed_annotation.dart";
+part "open_graph_data.freezed.dart";
+part "open_graph_data.g.dart";
+
+@freezed
+abstract class OpenGraphData with _$OpenGraphData {
+  const factory OpenGraphData({
+    @JsonKey(name: "og:title") required String? title,
+    @JsonKey(name: "og:description") required String? description,
+    @JsonKey(name: "og:image") required String? imageUrl,
+    @JsonKey(name: "og:image:width") required double? width,
+    @JsonKey(name: "og:image:height") required double? height,
+  }) = _OpenGraphData;
+
+  factory OpenGraphData.fromJson(Map<String, Object?> json) =>
+      _$OpenGraphDataFromJson(json);
+}

lib/widgets/chat_page/wrappers/text_message_wrapper.dart

@@ -1,6 +1,5 @@
 import "package:cross_cache/cross_cache.dart";
 import "package:flutter/material.dart";
-import "package:flutter_link_previewer/flutter_link_previewer.dart";
 import "package:flutter_linkify/flutter_linkify.dart";
 import "package:flutter_riverpod/flutter_riverpod.dart";
 import "package:nexus/controllers/cross_cache_controller.dart";
@@ -109,30 +108,49 @@ class TextMessageWrapper extends ConsumerWidget {
                       loading: SizedBox.shrink,
                       data: (preview) => preview == null
                           ? SizedBox.shrink()
-                          : LinkPreview(
-                              onTap: (url) => ref
+                          : InkWell(
+                              onTap: () => ref
                                   .watch(LaunchHelper.provider)
-                                  .launchUrl(Uri.parse(url)),
-                              imageBuilder: (url) => Image(
+                                  .launchUrl(Uri.parse(link)),
+                              child: Card(
+                                child: Column(
+                                  children: [
+                                    if (preview.title != null)
+                                      Text(
+                                        preview.title!,
+                                        style: theme.textTheme.labelLarge,
+                                      ),
+                                    if (preview.description != null)
+                                      Text(preview.description!),
+                                    if (preview.imageUrl != null)
+                                      Image(
+                                        errorBuilder: (_, _, _) =>
+                                            SizedBox.shrink(),
+                                        width: preview.width,
+                                        height: preview.height,
                                         image: CachedNetworkImage(
-                                  url,
-                                  ref.watch(CrossCacheController.provider),
+                                          preview.imageUrl!,
+                                          ref.watch(
+                                            CrossCacheController.provider,
+                                          ),
                                           headers: ref.headers,
                                         ),
                                         fit: BoxFit.cover,
-                                errorBuilder: (_, _, _) => SizedBox.shrink(),
                                       ),
-                              text: link,
-                              backgroundColor: isSentByMe
-                                  ? colorScheme.inversePrimary
-                                  : colorScheme.surfaceContainerLow,
-                              outsidePadding: EdgeInsets.only(top: 4),
-                              insidePadding: EdgeInsets.symmetric(
-                                vertical: 8,
-                                horizontal: 16,
+                                  ],
+                                ),
+                                // text: link,
+                                // backgroundColor: isSentByMe
+                                //     ? colorScheme.inversePrimary
+                                //     : colorScheme.surfaceContainerLow,
+                                // outsidePadding: EdgeInsets.only(top: 4),
+                                // insidePadding: EdgeInsets.symmetric(
+                                //   vertical: 8,
+                                //   horizontal: 16,
+                                // ),
+                                // linkPreviewData: preview,
+                                // onLinkPreviewDataFetched: (_) => null,
                               ),
-                              linkPreviewData: preview,
-                              onLinkPreviewDataFetched: (_) => null,
                             ),
                     ),
               ?extra,