The code defines an event management system for the Web Viewer, bridging JavaScript and C++ for handling user interactions. It includes:
EventManager Interface: Manages subscribing, unsubscribing, and emitting events using observable callbacks with C++ integration for performance and memory management.
UserEvents: A predefined dictionary of common user-triggered events like clicks, camera movements, and object interactions.
MouseEventInfo: Provides details about mouse interactions (e.g., coordinates, button state).