Add linked parent-child inputs (cascading dropdowns)

Creates two linked select inputs where the child's available options depend on the parent's current selection. Use inside a sidebar (after add_sidebar()).

Usage

add_linked_inputs(x, parent, child, type = "select")

Arguments

x

A sidebar_container (from add_sidebar()).

parent

List with: id, label, options; optionally default_selected, filter_var.

child

List with: id, label, options_by_parent (named list mapping each parent value to a character vector of child options); optionally filter_var.

type

Input type for parent: "select" (default) or "radio".

Value

The modified sidebar_container for piping.

Examples

if (FALSE) { # \dontrun{
add_sidebar() %>%
  add_linked_inputs(
    parent = list(id = "dimension", label = "Dimension",
                  options = c("AI", "Safety", "Digital Health")),
    child = list(id = "question", label = "Question",
                 options_by_parent = list(
                   "AI" = c("Overall", "Using AI Tools"),
                   "Safety" = c("Overall", "Passwords", "Phishing"),
                   "Digital Health" = c("Overall", "Screen Time")
                 ))
  ) %>%
  end_sidebar()
} # }