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Merge pull request #2167 from nextcloud/feat/neon_talk/references
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import 'dart:async'; | ||
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import 'package:built_collection/built_collection.dart'; | ||
import 'package:logging/logging.dart'; | ||
import 'package:meta/meta.dart'; | ||
import 'package:neon_framework/blocs.dart'; | ||
import 'package:nextcloud/core.dart' as core; | ||
import 'package:nextcloud/spreed.dart' as spreed; | ||
import 'package:rxdart/rxdart.dart'; | ||
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/// Bloc for handling the message state and interactions. | ||
@sealed | ||
abstract class TalkMessageBloc implements Bloc { | ||
/// Creates a new Talk message bloc. | ||
factory TalkMessageBloc({ | ||
required spreed.$ChatMessageInterface chatMessage, | ||
required ReferencesBloc referencesBloc, | ||
required bool isParent, | ||
}) = _TalkMessageBloc; | ||
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/// References contained in the message. | ||
BehaviorSubject<BuiltMap<String, Result<core.Reference>>> get references; | ||
} | ||
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class _TalkMessageBloc extends Bloc implements TalkMessageBloc { | ||
_TalkMessageBloc({ | ||
required this.chatMessage, | ||
required this.referencesBloc, | ||
required this.isParent, | ||
}) { | ||
if (!isParent) { | ||
referenceRegexSubscription = referencesBloc.referenceRegex.listen((result) { | ||
final referenceRegex = result.data; | ||
if (referenceRegex == null) { | ||
return; | ||
} | ||
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final matches = | ||
referenceRegex.allMatches(chatMessage.message).map((match) => match.group(0)!.trim()).toBuiltList(); | ||
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references.add( | ||
references.value.rebuild((b) { | ||
for (final match in matches) { | ||
b[match] ??= Result.loading(); | ||
} | ||
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b.removeWhere((key, value) => !matches.contains(key)); | ||
}), | ||
); | ||
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if (matches.isNotEmpty) { | ||
referencesBloc.loadReferences(matches); | ||
} | ||
}); | ||
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referencesSubscription = referencesBloc.references.listen((result) { | ||
references.add( | ||
references.value.rebuild((b) { | ||
for (final url in references.value.keys) { | ||
b[url] = result[url] ?? Result.loading(); | ||
} | ||
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b.removeWhere((key, value) => !result.keys.contains(key)); | ||
}), | ||
); | ||
}); | ||
} | ||
} | ||
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final spreed.$ChatMessageInterface chatMessage; | ||
final ReferencesBloc referencesBloc; | ||
final bool isParent; | ||
StreamSubscription<Result<RegExp?>>? referenceRegexSubscription; | ||
StreamSubscription<BuiltMap<String, Result<core.Reference>>>? referencesSubscription; | ||
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@override | ||
Logger log = Logger('TalkMessageBloc'); | ||
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@override | ||
void dispose() { | ||
unawaited(referenceRegexSubscription?.cancel()); | ||
unawaited(referencesSubscription?.cancel()); | ||
unawaited(references.close()); | ||
} | ||
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@override | ||
final references = BehaviorSubject.seeded(BuiltMap()); | ||
} |
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