sendEventToFrontend method

Implementation

void sendEventToFrontend(InspectorEvent event) {
  final bool hasConnections = _connections.isNotEmpty;

  // Notify test listeners when there are no websocket clients
  if (!hasConnections) {
    try {
      for (final tap in _testEventListeners) {
        tap(event);
      }
    } catch (_) {}
  }

  // Maintain known-node bookkeeping for incremental DOM coherence
  try {
    if (event is DOMSetChildNodesEvent) {
      final ids = <int>[];
      for (final n in event.nodes) {
        final v = n['nodeId'];
        if (v is int) ids.add(v);
      }
      if (ids.isNotEmpty) _markNodesKnown(ids);
    } else if (event is DOMChildNodeInsertedEvent) {
      final id = event.node.ownerView.forDevtoolsNodeId(event.node);
      _markNodeKnown(id);
    } else if (event is DOMChildNodeRemovedEvent) {
      final id = event.node.ownerView.forDevtoolsNodeId(event.node);
      _unmarkNodeKnown(id);
    } else if (event is DOMClearEvent || event is DOMUpdatedEvent) {
      _knownNodeIds.clear();
      _seededParentIds.clear();
    }
  } catch (_) {}

  // If there are active websocket clients, also mirror events to test listeners
  if (hasConnections) {
    try {
      for (final tap in _testEventListeners) {
        tap(event);
      }
    } catch (_) {}
  }

  // Broadcast to websocket clients
  if (hasConnections) {
    final message = jsonEncode(event.toJson());
    for (final connection in _connections.values) {
      try {
        connection.sink.add(message);
      } catch (e) {
        print('Error sending event: $e');
      }
    }
  }
}