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//! Breadcrumb component — navigation breadcrumb trail showing hierarchy.
use maud::{html, Markup};
/// Breadcrumb item with label and optional href
#[derive(Debug, Clone)]
pub struct BreadcrumbItem {
/// Display text for the breadcrumb
pub label: String,
/// Optional href (None for current page, the last item)
pub href: Option<String>,
}
/// Breadcrumb rendering properties
#[derive(Debug, Clone)]
pub struct Props {
/// List of breadcrumb items (last item has no href)
pub items: Vec<BreadcrumbItem>,
/// Separator character (default "/")
pub separator: Option<String>,
}
impl Default for Props {
fn default() -> Self {
Self {
items: Vec::new(),
separator: None,
}
}
}
/// Render breadcrumb navigation
pub fn render(props: Props) -> Markup {
let sep = props.separator.as_deref().unwrap_or("/");
html! {
nav class="mui-breadcrumb" aria-label="Breadcrumb" {
ol class="mui-breadcrumb__list" {
@for (idx, item) in props.items.iter().enumerate() {
@if idx > 0 {
li class="mui-breadcrumb__separator" aria-hidden="true" {
(sep)
}
}
@if item.href.is_some() {
li class="mui-breadcrumb__item" {
a href=(item.href.as_ref().unwrap()) {
(item.label)
}
}
} @else {
li class="mui-breadcrumb__item mui-breadcrumb__item--current" {
// role="link" + aria-disabled="true" + aria-current="page":
// gives SR users link-like semantics on the current page
// without making the element activatable. Matches shadcn/Radix.
span role="link" aria-disabled="true" aria-current="page" {
(item.label)
}
}
}
}
}
}
}
}
/// Showcase all breadcrumb use cases
pub fn showcase() -> Markup {
html! {
div.mui-showcase__grid {
div {
p.mui-showcase__caption { "Default separator" }
(render(Props {
items: vec![
BreadcrumbItem {
label: "Home".into(),
href: Some("/".into()),
},
BreadcrumbItem {
label: "Components".into(),
href: Some("/docs/components".into()),
},
BreadcrumbItem {
label: "Breadcrumb".into(),
href: None,
},
],
separator: None,
}))
}
div {
p.mui-showcase__caption { "Product navigation" }
(render(Props {
items: vec![
BreadcrumbItem {
label: "Home".into(),
href: Some("/".into()),
},
BreadcrumbItem {
label: "Products".into(),
href: Some("/products".into()),
},
BreadcrumbItem {
label: "Phones".into(),
href: Some("/products/phones".into()),
},
BreadcrumbItem {
label: "iPhone 15 Pro".into(),
href: None,
},
],
separator: Some("\u{203a}".into()),
}))
}
div {
p.mui-showcase__caption { "Two levels" }
(render(Props {
items: vec![
BreadcrumbItem {
label: "Docs".into(),
href: Some("/docs".into()),
},
BreadcrumbItem {
label: "Getting Started".into(),
href: None,
},
],
separator: None,
}))
}
}
}
}