Extension points for plugins

dispatch(
  map,
  funcName,
  leaflet = stop(paste(funcName, "requires a map proxy object")),
  leaflet_proxy = stop(paste(funcName, "does not support map proxy objects"))
)

invokeMethod(map, data, method, ...)

Arguments

map: a map object, as returned from leaflet() or leafletProxy()
funcName: the name of the function that the user called that caused this dispatch call; for error message purposes
leaflet: an action to be performed if the map is from leaflet()
leaflet_proxy: an action to be performed if the map is from leafletProxy().
data: a data object that will be used when evaluating formulas in ...
method: the name of the JavaScript method to invoke
...: unnamed arguments to be passed to the JavaScript method

Value

dispatch() returns the value of leaflet or leaflet_proxy(), or an error. invokeMethod() returns the map object that was passed in, possibly modified.