Interface TourEngine

All Known Implementing Classes:
DriverEngine, ShepherdEngine
public interface TourEngine
Interface representing the core functionality of a tour engine. A tour engine facilitates guided tours in a web application, allowing developers to define steps, manage behaviors, and handle user interactions during the tour.

Implementing classes must provide the unique identifier of the engine via the getId method and may extend behavior by overriding default methods. 

Core functionality includes:
- Starting a tour for a given component with defined steps and options.
- Canceling an active tour.
- Wiring events to handle tour completion or cancellation.

Static Fields:
- GSON: A pre-configured Gson instance for serializing and deserializing data related
  to tour steps and options.

Methods:
- String getId(): Returns the unique identifier for the engine.

Default Methods:
- void start(Component host, List<TourStep> steps, Map<Object, Object> options):
  Starts a guided tour on the given host component, initializing it with the provided steps
  and options.
- void cancel(Component host): Cancels the currently active tour.
- void wireEvents(Component host): Wires event listeners to handle tour completion
  and cancellation and sends notifications to the component's server-side counterpart.

Notes:
- The host component must be attached to a UI for the interactions with the underlying JavaScript
  API to work.
- Exceptions during execution are caught and rethrown as RuntimeException.

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static final com.google.gson.Gson
    GSON
     

  • Method Summary

    Modifier and Type
    Method
    Description
    default void
    cancel(com.vaadin.flow.component.Component host)
     
    String
    getId()
     
    default void
    start(com.vaadin.flow.component.Component host, List<TourStep> steps, Map<Object,Object> options)
     
    default void
    wireEvents(com.vaadin.flow.component.Component host)
     

  • Field Details

    • GSON

      static final com.google.gson.Gson GSON

  • Method Details

    • getId

      String getId()

    • start

      default void start(com.vaadin.flow.component.Component host, List<TourStep> steps, Map<Object,Object> options)

    • cancel

      default void cancel(com.vaadin.flow.component.Component host)

    • wireEvents

      default void wireEvents(com.vaadin.flow.component.Component host)