Function cosmic::widget::dropdown::update

pub fn update<'a, S: AsRef<str>, Message>(
    event: &Event,
    layout: Layout<'_>,
    cursor: Cursor,
    shell: &mut Shell<'_, Message>,
    on_selected: &dyn Fn(usize) -> Message,
    selected: Option<usize>,
    selections: &[S],
    state: impl FnOnce() -> &'a mut State,
) -> Status

Processes an Event and updates the State of a Dropdown accordingly.