Conversion function used in DowncastDispatcher event listeners.
Adds a UIElement to the editing view at a given marker position.
The marker position is retrieved from the data object provided by the event
listener.
The added UIElement renders a loading spinner into the editing view without
changing the model.
the callback to be executed after the UIElement has been
added (Usually to load the data for the loading spinner). Get the
markerData of the corresponding marker as the sole argument.
Conversion function used in DowncastDispatcher event listeners. Adds a UIElement to the editing view at a given marker position. The marker position is retrieved from the data object provided by the event listener.
The added UIElement renders a loading spinner into the editing view without changing the model.