use dioxus::prelude::*;
use crate::uikit::primitives::{Controllable, use_controllable};
#[component]
pub fn Collapsible(open: Option<bool>, #[props(default)] default_open: bool, on_open_change: Option<EventHandler<bool>>, #[props(default)] class: String, children: Element) -> Element {
let state = use_controllable(open, default_open, on_open_change);
use_context_provider(|| CollapsibleCtx { open: state });
let data_state = if state.get() { "open" } else { "closed" };
rsx! {
div { class, "data-slot": "collapsible", "data-state": data_state, {children} }
}
}
#[component]
pub fn CollapsibleTrigger(#[props(default)] class: String, children: Element) -> Element {
let ctx = use_context::<CollapsibleCtx>();
let open = ctx.open.get();
let data_state = if open { "open" } else { "closed" };
let aria_expanded = if open { "true" } else { "false" };
rsx! {
button {
r#type: "button",
class,
"data-slot": "collapsible-trigger",
"data-state": data_state,
"aria-expanded": aria_expanded,
onclick: move |_| ctx.open.set(!ctx.open.get()),
{children}
}
}
}
#[component]
pub fn CollapsibleContent(#[props(default)] class: String, children: Element) -> Element {
let ctx = use_context::<CollapsibleCtx>();
if !ctx.open.get() {
return rsx! {};
}
rsx! {
div { class, "data-slot": "collapsible-content", "data-state": "open", {children} }
}
}
#[derive(Clone, Copy)]
struct CollapsibleCtx {
open: Controllable<bool>,
}
#[cfg(test)]
mod tests {
use super::*;
use crate::uikit::test_util::render;
#[test]
fn closed_by_default_hides_content() {
fn app() -> Element {
rsx! {
Collapsible {
CollapsibleTrigger { "toggle" }
CollapsibleContent { "body" }
}
}
}
let html = render(app);
assert!(html.contains("data-slot=\"collapsible-trigger\""), "{html}");
assert!(!html.contains("body"), "content hidden while closed: {html}");
}
#[test]
fn default_open_reveals_content() {
fn app() -> Element {
rsx! {
Collapsible { default_open: true,
CollapsibleTrigger { "toggle" }
CollapsibleContent { "body" }
}
}
}
let html = render(app);
assert!(html.contains("data-slot=\"collapsible-content\""), "{html}");
assert!(html.contains("body"), "{html}");
assert!(html.contains("data-state=\"open\""), "{html}");
}
#[test]
fn trigger_carries_aria_expanded() {
fn app() -> Element {
rsx! {
Collapsible { default_open: true,
CollapsibleTrigger { "toggle" }
}
}
}
let html = render(app);
assert!(html.contains("aria-expanded=\"true\""), "{html}");
}
}