Class Evented

folium/map.py:76–95

The base class for Layer and Map Adds the `on` and `once` methods for event handling capabilities. See https://leafletjs.com/reference.html#evented for more in depth documentation. Please note that we have only added the `on( eventMap)` variant of this method using pyth

class Evented(Class):
    """The base class for Layer and Map

    Adds the `on` and `once` methods for event handling capabilities.

    See https://leafletjs.com/reference.html#evented for
    more in depth documentation. Please note that we have
    only added the `on(<Object> eventMap)` variant of this
    method using python keyword arguments.
    """

    def on(self, **event_map: JsCode):
        self._add(once=False, **event_map)

    def once(self, **event_map: JsCode):
        self._add(once=True, **event_map)

    def _add(self, once: bool, **event_map: JsCode):
        for event_type, handler in event_map.items():
            self.add_child(EventHandler(event_type, handler, once))


class Layer(Evented):