If this event's default action is cancelable. See respective engine event for its definition of default action.
If this event's default action has been canceled/prevented by a call to preventDefault()
The navigation started due to a rendering configuration change such such as updated ReaderViewOptions or Renderer switch.
True if stopImmediatePropagation() was called on this event.
If this event runs in a "trusted" context, i.e. the event callback is executed during a user-generated event such as "click" or "pointerdown".
The type of navigation action that started.
True if stopPropagation() was called on this event.
The ReaderView instance this event is related to.
If this navigation replaced an already ongoing navigation action.
The type of event.
Prevent the event's default action. See the respective engine event for its definition of default action.
Stops this event from propagating to anymore listener.
Stops this event from propagating to listeners on the ReadingSystemEngine instance, if called from a listener added to a ReaderView instance. If the event has already propagated to the ReadingSystemEngine instance, calling this method has no effect.
Get this event as a plain JSON object.
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EngineEvent used for "navigationStarted". Fired when a new navigation action has started, or replaces an existing ongoing navigation in a ReaderView.