import 'package:famedlysdk/famedlysdk.dart'; import 'package:flutter_matrix_html/flutter_html.dart'; import 'package:flutter/material.dart'; import 'package:url_launcher/url_launcher.dart'; import 'matrix.dart'; class HtmlMessage extends StatelessWidget { final String html; final int maxLines; final Room room; final TextStyle defaultTextStyle; final TextStyle linkStyle; const HtmlMessage( {this.html, this.maxLines, this.room, this.defaultTextStyle, this.linkStyle}); @override Widget build(BuildContext context) { // riot-web is notorious for creating bad reply fallback events from invalid messages which, if // not handled properly, can lead to impersination. As such, we strip the entire `` tags // here already, to prevent that from happening. // We do *not* do this in an AST and just with simple regex here, as riot-web tends to create // miss-matching tags, and this way we actually correctly identify what we want to strip and, well, // strip it. final renderHtml = html.replaceAll(RegExp('.*<\/mx-reply>'), ''); // there is no need to pre-validate the html, as we validate it while rendering final themeData = Theme.of(context); return Html( data: renderHtml, defaultTextStyle: defaultTextStyle, linkStyle: linkStyle ?? themeData.textTheme.bodyText2.copyWith( color: themeData.accentColor, decoration: TextDecoration.underline, ), shrinkToFit: true, maxLines: maxLines, onLinkTap: (String url) { if (url == null || url.isEmpty) { return; } launch(url); }, getMxcUrl: (String mxc, double width, double height) { final ratio = MediaQuery.of(context).devicePixelRatio; return Uri.parse(mxc)?.getThumbnail( Matrix.of(context).client, width: (width ?? 800) * ratio, height: (height ?? 800) * ratio, method: ThumbnailMethod.scale, ); }, getPillInfo: (String identifier) async { if (room == null) { return null; } if (identifier[0] == '@') { // we have a user pill final user = room.getState('m.room.member', identifier); if (user != null) { return user.content; } // there might still be a profile... final profile = await room.client.getProfileFromUserId(identifier); if (profile != null) { return { 'displayname': profile.displayname, 'avatar_url': profile.avatarUrl.toString(), }; } return null; } if (identifier[0] == '#') { // we have an alias pill for (final r in room.client.rooms) { final state = r.getState('m.room.canonical_alias'); if (state != null && ((state.content['alias'] is String && state.content['alias'] == identifier) || (state.content['alt_aliases'] is List && state.content['alt_aliases'].contains(identifier)))) { // we have a room! return { 'displayname': identifier, 'avatar_url': r.getState('m.room.avatar')?.content['url'], }; } } return null; } if (identifier[0] == '!') { // we have a room ID pill final r = room.client.getRoomById(identifier); if (r == null) { return null; } return { 'displayname': r.canonicalAlias, 'avatar_url': r.getState('m.room.avatar')?.content['url'], }; } return null; }, ); } }