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Add server-generated URL preview support

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This commit is contained in:
Henry Hiles 2026-04-03 19:39:39 -04:00
commit f4624c2866
Signed by: Henry-Hiles
SSH key fingerprint: SHA256:VKQUdS31Q90KvX7EkKMHMBpUspcmItAh86a+v7PGiIs
5 changed files with 128 additions and 49 deletions
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58
lib/widgets/chat_page/wrappers/text_message_wrapper.dart
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@ -1,11 +1,17 @@
import "package:cross_cache/cross_cache.dart";
import "package:flutter/material.dart";
import "package:flutter_chat_core/flutter_chat_core.dart";
import "package:flutter_link_previewer/flutter_link_previewer.dart";
import "package:flutter_riverpod/flutter_riverpod.dart";
import "package:nexus/controllers/cross_cache_controller.dart";
import "package:nexus/controllers/url_preview_controller.dart";
import "package:nexus/helpers/extensions/better_when.dart";
import "package:nexus/helpers/extensions/get_headers.dart";
import "package:nexus/widgets/chat_page/html/html.dart";
import "package:nexus/widgets/chat_page/wrappers/message_wrapper.dart";
import "package:nexus/widgets/chat_page/reply_widget.dart";
class TextMessageWrapper extends StatelessWidget {
class TextMessageWrapper extends ConsumerWidget {
final Message message;
final String? content;
final MessageGroupStatus? groupStatus;
@ -27,7 +33,7 @@ class TextMessageWrapper extends StatelessWidget {
});
@override
Widget build(BuildContext context) {
Widget build(BuildContext context, WidgetRef ref) {
final theme = Theme.of(context);
final colorScheme = theme.colorScheme;
final textMessage = message is TextMessage ? message as TextMessage : null;
@ -80,27 +86,35 @@ class TextMessageWrapper extends StatelessWidget {
if (textMessage?.editedAt != null)
Text("(edited)", style: theme.textTheme.labelSmall),
if (textMessage != null)
LinkPreview(
text: textMessage.text,
backgroundColor: isSentByMe
? colorScheme.inversePrimary
: colorScheme.surfaceContainerLow,
outsidePadding: EdgeInsets.only(top: 4),
insidePadding: EdgeInsets.symmetric(
vertical: 8,
horizontal: 16,
),
linkPreviewData: message.metadata?["linkPreviewData"],
onLinkPreviewDataFetched: (linkPreviewData) => updateMessage(
message,
message.copyWith(
metadata: {
...(message.metadata ?? {}),
"linkPreviewData": linkPreviewData,
},
ref
.watch(UrlPreviewController.provider(textMessage))
.betterWhen(
loading: SizedBox.shrink,
data: (preview) => preview == null
? SizedBox.shrink()
: LinkPreview(
imageBuilder: (url) => Image(
image: CachedNetworkImage(
url,
ref.watch(CrossCacheController.provider),
headers: ref.headers,
),
fit: BoxFit.cover,
errorBuilder: (_, _, _) => SizedBox.shrink(),
),
text: textMessage.text,
backgroundColor: isSentByMe
? colorScheme.inversePrimary
: colorScheme.surfaceContainerLow,
outsidePadding: EdgeInsets.only(top: 4),
insidePadding: EdgeInsets.symmetric(
vertical: 8,
horizontal: 16,
),
linkPreviewData: preview,
onLinkPreviewDataFetched: (_) => null,
),
),
),
),
if (extra != null) extra!,
],
),