80 lines
2.3 KiB
Dart
80 lines
2.3 KiB
Dart
import 'package:collection/collection.dart' show IterableExtension;
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import 'package:flutter/material.dart';
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import 'package:flutter_markdown/flutter_markdown.dart';
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import 'package:stream_chat_flutter_core/stream_chat_flutter_core.dart';
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import 'stream_chat_theme.dart';
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import 'utils.dart';
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class MessageText extends StatelessWidget {
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const MessageText({
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Key? key,
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required this.message,
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required this.messageTheme,
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this.onMentionTap,
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this.onLinkTap,
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}) : super(key: key);
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final Message message;
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final void Function(User)? onMentionTap;
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final void Function(String)? onLinkTap;
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final MessageTheme messageTheme;
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@override
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Widget build(BuildContext context) {
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final text = _replaceMentions(message.text ?? '').replaceAll('\n', '\\\n');
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return MarkdownBody(
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data: text,
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onTapLink: (
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String link,
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String? href,
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String title,
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) {
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if (link.startsWith('@')) {
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final mentionedUser = message.mentionedUsers.firstWhereOrNull(
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(u) => '@${u.name}' == link,
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);
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if (mentionedUser == null) {
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return;
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}
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if (onMentionTap != null) {
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onMentionTap!(mentionedUser);
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} else {
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print('tap on ${mentionedUser.name}');
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}
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} else {
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if (onLinkTap != null) {
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onLinkTap!(link);
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} else {
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launchURL(context, link);
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}
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}
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},
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styleSheet: MarkdownStyleSheet.fromTheme(
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Theme.of(context).copyWith(
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textTheme: Theme.of(context).textTheme.apply(
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bodyColor: messageTheme.messageText?.color,
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decoration: messageTheme.messageText?.decoration,
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decorationColor: messageTheme.messageText?.decorationColor,
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decorationStyle: messageTheme.messageText?.decorationStyle,
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fontFamily: messageTheme.messageText?.fontFamily,
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),
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),
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).copyWith(
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a: messageTheme.messageLinks,
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p: messageTheme.messageText,
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),
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);
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}
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String _replaceMentions(String text) {
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message.mentionedUsers.map((u) => u.name).toSet().forEach((userName) {
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text = text.replaceAll(
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'@$userName', '[@$userName](@${userName.replaceAll(' ', '')})');
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});
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return text;
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}
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}
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