import 'package:flutter/material.dart'; import 'package:flutter_gen/gen_l10n/l10n.dart'; import 'package:flutter_matrix_html/flutter_html.dart'; import 'package:matrix/matrix.dart'; import 'package:fluffychat/widgets/matrix.dart'; import '../../../config/app_config.dart'; import '../../../config/setting_keys.dart'; import '../../../pages/image_viewer/image_viewer.dart'; import '../../../utils/matrix_sdk_extensions.dart/matrix_locals.dart'; import '../../../utils/url_launcher.dart'; class HtmlMessage extends StatelessWidget { final String html; final int? maxLines; final Room room; final TextStyle? defaultTextStyle; final TextStyle? linkStyle; final double? emoteSize; const HtmlMessage({ Key? key, required this.html, this.maxLines, required this.room, this.defaultTextStyle, this.linkStyle, this.emoteSize, }) : super(key: key); @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('.*', caseSensitive: false, multiLine: false, dotAll: true), ''); // there is no need to pre-validate the html, as we validate it while rendering final matrix = Matrix.of(context); final themeData = Theme.of(context); return Html( data: renderHtml, defaultTextStyle: defaultTextStyle, emoteSize: emoteSize, linkStyle: linkStyle ?? themeData.textTheme.bodyText2!.copyWith( color: themeData.colorScheme.secondary, decoration: TextDecoration.underline, ), shrinkToFit: true, maxLines: maxLines, onLinkTap: (url) => UrlLauncher(context, url).launchUrl(), onPillTap: (url) => UrlLauncher(context, url).launchUrl(), getMxcUrl: (String mxc, double? width, double? height, {bool? animated = false}) { final ratio = MediaQuery.of(context).devicePixelRatio; return Uri.parse(mxc) .getThumbnail( matrix.client, width: (width ?? 800) * ratio, height: (height ?? 800) * ratio, method: ThumbnailMethod.scale, animated: AppConfig.autoplayImages ? animated : false, ) .toString(); }, onImageTap: (String mxc) => showDialog( context: Matrix.of(context).navigatorContext, useRootNavigator: false, builder: (_) => ImageViewer(Event.fromJson({ 'type': EventTypes.Message, 'content': { 'body': mxc, 'url': mxc, 'msgtype': MessageTypes.Image, }, 'event_id': 'fake_event', }, room))), setCodeLanguage: (String key, String value) async { await matrix.store.setItem('${SettingKeys.codeLanguage}.$key', value); }, getCodeLanguage: (String key) async { return await matrix.store.getItem('${SettingKeys.codeLanguage}.$key'); }, getPillInfo: (String url) async { final identityParts = url.parseIdentifierIntoParts(); final identifier = identityParts?.primaryIdentifier; if (identifier == null) { return {}; } if (identifier.sigil == '@') { // 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); return { 'displayname': profile.displayName, 'avatar_url': profile.avatarUrl.toString(), }; } if (identifier.sigil == '#') { // 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': r.getLocalizedDisplayname(MatrixLocals(L10n.of(context)!)), 'avatar_url': r.getState('m.room.avatar')?.content['url'], }; } } return {}; } if (identifier.sigil == '!') { // we have a room ID pill final r = room.client.getRoomById(identifier); if (r == null) { return {}; } return { 'displayname': r.getLocalizedDisplayname(MatrixLocals(L10n.of(context)!)), 'avatar_url': r.getState('m.room.avatar')?.content['url'], }; } return {}; }, ); } }