Breadcrumbs With Dropdown

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333

import { createContext, useContext, useEffect, useRef, useState } from "react";
import type {
  AnchorHTMLAttributes,
  HTMLAttributes,
  KeyboardEvent as ReactKeyboardEvent,
  LiHTMLAttributes,
  ReactNode,
} from "react";

/**
 * DevSnips React Breadcrumbs — With Dropdown.
 *
 * A single breadcrumb level can expose sibling pages through
 * `<BreadcrumbDropdown>`: a real menu button (`aria-haspopup="menu"` +
 * `aria-expanded`) with a chevron, opening a menu of real anchor links.
 * Enter / Space / ArrowDown open the menu, Arrow keys + Home / End move
 * between items, Escape closes and returns focus to the trigger, and
 * pointer interaction outside closes it. Only that level becomes a menu —
 * the rest of the trail stays plain breadcrumb navigation.
 */
function cx(...parts: Array<string | false | null | undefined>): string {
  return parts.filter(Boolean).join(" ");
}

const LIST_CLASSES =
  "m-0 flex max-w-full list-none flex-wrap items-center gap-x-1 gap-y-0.5 p-0 text-sm leading-5";
const ITEM_CLASSES = "inline-flex min-w-0 items-center gap-1.5";
const LINK_CLASSES =
  "inline-flex min-w-0 items-center gap-1.5 rounded-[var(--ds-radius-xs)] text-[var(--ds-color-muted-foreground)] underline-offset-4 transition-colors duration-150 ease-out hover:text-[var(--ds-color-foreground)] hover:underline focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-[var(--ds-color-focus-ring)] motion-reduce:transition-none";
const CURRENT_CLASSES =
  "inline-flex min-w-0 items-center gap-1.5 font-medium text-[var(--ds-color-foreground)]";
const SEPARATOR_CLASSES =
  "inline-flex shrink-0 select-none items-center justify-center text-[var(--ds-color-muted-foreground)] [&_svg]:size-3.5";
const ICON_CLASSES = "inline-flex shrink-0 text-[14px] [&_svg]:size-3.5";

const DEFAULT_SEPARATOR = (
  <svg
    viewBox="0 0 24 24"
    fill="none"
    stroke="currentColor"
    strokeWidth={1.75}
    strokeLinecap="round"
    strokeLinejoin="round"
    aria-hidden="true"
    focusable="false"
  >
    <path d="m9 6 6 6-6 6" />
  </svg>
);

interface BreadcrumbsContextValue {
  separator: ReactNode;
}

const BreadcrumbsContext = createContext<BreadcrumbsContextValue | null>(null);

function useBreadcrumbs(component: string): BreadcrumbsContextValue {
  const context = useContext(BreadcrumbsContext);
  if (!context) {
    throw new Error(`<${component}> must be rendered inside <Breadcrumbs>.`);
  }
  return context;
}

export interface BreadcrumbsProps extends HTMLAttributes<HTMLElement> {
  /** Accessible label for the navigation landmark. */
  label?: string;
  /** Default separator content used by every `<BreadcrumbSeparator>` without children. */
  separator?: ReactNode;
  className?: string;
  children?: ReactNode;
}

export function Breadcrumbs({
  label = "Breadcrumb",
  separator,
  className,
  children,
  ...rest
}: BreadcrumbsProps) {
  return (
    <BreadcrumbsContext.Provider value={{ separator: separator ?? DEFAULT_SEPARATOR }}>
      <nav aria-label={label} className={className} {...rest}>
        {children}
      </nav>
    </BreadcrumbsContext.Provider>
  );
}

export interface BreadcrumbListProps extends HTMLAttributes<HTMLOListElement> {
  className?: string;
  children?: ReactNode;
}

export function BreadcrumbList({ className, children, ...rest }: BreadcrumbListProps) {
  return (
    <ol className={cx(LIST_CLASSES, className)} {...rest}>
      {children}
    </ol>
  );
}

export interface BreadcrumbItemProps extends LiHTMLAttributes<HTMLLIElement> {
  className?: string;
  children?: ReactNode;
}

export function BreadcrumbItem({ className, children, ...rest }: BreadcrumbItemProps) {
  return (
    <li className={cx(ITEM_CLASSES, className)} {...rest}>
      {children}
    </li>
  );
}

export interface BreadcrumbLinkProps extends AnchorHTMLAttributes<HTMLAnchorElement> {
  /** Destination URL — rendered as a real anchor with normal browser navigation. */
  href: string;
  /** Meaningful leading icon (rendered aria-hidden). */
  icon?: ReactNode;
  className?: string;
  children?: ReactNode;
}

export function BreadcrumbLink({ href, icon, className, children, ...rest }: BreadcrumbLinkProps) {
  return (
    <a href={href} className={cx(LINK_CLASSES, className)} {...rest}>
      {icon ? (
        <span aria-hidden="true" className={ICON_CLASSES}>
          {icon}
        </span>
      ) : null}
      <span className="min-w-0">{children}</span>
    </a>
  );
}

export interface BreadcrumbCurrentProps extends HTMLAttributes<HTMLSpanElement> {
  /** Meaningful leading icon (rendered aria-hidden). */
  icon?: ReactNode;
  className?: string;
  children?: ReactNode;
}

export function BreadcrumbCurrent({ icon, className, children, ...rest }: BreadcrumbCurrentProps) {
  return (
    <span aria-current="page" className={cx(CURRENT_CLASSES, className)} {...rest}>
      {icon ? (
        <span aria-hidden="true" className={ICON_CLASSES}>
          {icon}
        </span>
      ) : null}
      <span className="min-w-0">{children}</span>
    </span>
  );
}

export interface BreadcrumbSeparatorProps extends LiHTMLAttributes<HTMLLIElement> {
  className?: string;
  children?: ReactNode;
}

export function BreadcrumbSeparator({ className, children, ...rest }: BreadcrumbSeparatorProps) {
  const context = useBreadcrumbs("BreadcrumbSeparator");
  return (
    <li
      role="presentation"
      aria-hidden="true"
      className={cx(SEPARATOR_CLASSES, className)}
      {...rest}
    >
      {children ?? context.separator}
    </li>
  );
}


export interface BreadcrumbDropdownItem {
  /** Visible label. */
  label: ReactNode;
  /** Destination URL — rendered as a real anchor menu item. */
  href: string;
  /** Meaningful leading icon (rendered aria-hidden). */
  icon?: ReactNode;
  /** Marks the item as the current page (`aria-current="page"`, emphasized). */
  current?: boolean;
}

export interface BreadcrumbDropdownProps {
  /** Visible trigger label — the name of this breadcrumb level. */
  label: string;
  /** Related pages offered at this level. */
  items: BreadcrumbDropdownItem[];
  /** Accessible name override for the trigger (defaults to `label`). */
  "aria-label"?: string;
  className?: string;
}

const DROPDOWN_TRIGGER_CLASSES =
  "inline-flex min-w-0 items-center gap-1 rounded-[var(--ds-radius-xs)] text-[var(--ds-color-muted-foreground)] underline-offset-4 transition-colors duration-150 ease-out hover:text-[var(--ds-color-foreground)] hover:underline focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-[var(--ds-color-focus-ring)] aria-expanded:text-[var(--ds-color-foreground)] motion-reduce:transition-none";
const MENU_CLASSES =
  "absolute left-0 top-[calc(100%+4px)] z-40 min-w-[180px] rounded-[var(--ds-radius-md)] border border-[var(--ds-color-border)] bg-[var(--ds-color-surface-elevated)] p-1 shadow-[var(--ds-shadow-md)]";
const MENU_ITEM_CLASSES =
  "flex w-full items-center gap-1.5 rounded-[var(--ds-radius-sm)] px-2 py-1.5 text-[13px] leading-5 text-[var(--ds-color-foreground)] no-underline transition-colors duration-150 ease-out hover:bg-[var(--ds-color-surface-hover)] focus:bg-[var(--ds-color-surface-hover)] focus-visible:outline-2 focus-visible:outline-offset-[-2px] focus-visible:outline-[var(--ds-color-focus-ring)] motion-reduce:transition-none";

export function BreadcrumbDropdown({
  label,
  items,
  className,
  ...rest
}: BreadcrumbDropdownProps) {
  const [open, setOpen] = useState(false);
  const triggerRef = useRef<HTMLButtonElement>(null);
  const itemRefs = useRef<Array<HTMLAnchorElement | null>>([]);
  const containerRef = useRef<HTMLLIElement>(null);

  useEffect(() => {
    if (!open) return;
    function onDown(event: MouseEvent) {
      if (containerRef.current && !containerRef.current.contains(event.target as Node)) {
        setOpen(false);
      }
    }
    function onKey(event: KeyboardEvent) {
      if (event.key === "Escape") {
        setOpen(false);
        triggerRef.current?.focus();
      }
      if (event.key === "Tab") {
        setOpen(false);
      }
    }
    document.addEventListener("mousedown", onDown);
    document.addEventListener("keydown", onKey);
    return () => {
      document.removeEventListener("mousedown", onDown);
      document.removeEventListener("keydown", onKey);
    };
  }, [open]);

  function openMenu(focusIndex: number) {
    setOpen(true);
    setTimeout(() => itemRefs.current[focusIndex]?.focus(), 0);
  }

  function onTriggerKeyDown(event: ReactKeyboardEvent<HTMLButtonElement>) {
    if (event.key === "ArrowDown") {
      event.preventDefault();
      open ? itemRefs.current[0]?.focus() : openMenu(0);
    } else if (event.key === "ArrowUp") {
      event.preventDefault();
      open ? itemRefs.current[items.length - 1]?.focus() : openMenu(items.length - 1);
    }
  }

  function onItemKeyDown(event: ReactKeyboardEvent<HTMLAnchorElement>, index: number) {
    const count = items.length;
    if (event.key === "ArrowDown") {
      event.preventDefault();
      itemRefs.current[(index + 1) % count]?.focus();
    } else if (event.key === "ArrowUp") {
      event.preventDefault();
      itemRefs.current[(index - 1 + count) % count]?.focus();
    } else if (event.key === "Home") {
      event.preventDefault();
      itemRefs.current[0]?.focus();
    } else if (event.key === "End") {
      event.preventDefault();
      itemRefs.current[count - 1]?.focus();
    }
  }

  return (
    <li ref={containerRef} className={cx("relative inline-flex min-w-0 items-center gap-1.5", className)}>
      <button
        type="button"
        ref={triggerRef}
        aria-haspopup="menu"
        aria-expanded={open}
        onClick={() => (open ? setOpen(false) : openMenu(0))}
        onKeyDown={onTriggerKeyDown}
        className={DROPDOWN_TRIGGER_CLASSES}
        {...rest}
      >
        <span className="min-w-0">{label}</span>
        <svg
          viewBox="0 0 24 24"
          fill="none"
          stroke="currentColor"
          strokeWidth={1.75}
          strokeLinecap="round"
          strokeLinejoin="round"
          aria-hidden="true"
          focusable="false"
          className={cx(
            "size-3.5 shrink-0 transition-transform duration-150 ease-out motion-reduce:transition-none",
            open && "rotate-180",
          )}
        >
          <path d="m6 9 6 6 6-6" />
        </svg>
      </button>
      {open ? (
        <div role="menu" aria-label={label} className={MENU_CLASSES}>
          {items.map((item, index) => (
            <a
              key={item.href}
              ref={(el) => {
                itemRefs.current[index] = el;
              }}
              role="menuitem"
              tabIndex={-1}
              href={item.href}
              aria-current={item.current ? "page" : undefined}
              className={cx(MENU_ITEM_CLASSES, item.current && "font-medium")}
              onClick={() => setOpen(false)}
              onKeyDown={(event) => onItemKeyDown(event, index)}
            >
              {item.icon ? (
                <span aria-hidden="true" className={ICON_CLASSES}>
                  {item.icon}
                </span>
              ) : null}
              <span className="min-w-0 flex-1">{item.label}</span>
            </a>
          ))}
        </div>
      ) : null}
    </li>
  );
}

export default Breadcrumbs;

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205

/* DevSnips React — JavaScript parity build.
 * Same API, behavior, and classes as code.tsx; TypeScript types removed.
 * Regenerated from code.tsx — edit code.tsx and re-run the generator.
 */

import { createContext, useContext, useEffect, useRef, useState } from "react";
function cx(...parts) {
  return parts.filter(Boolean).join(" ");
}
const LIST_CLASSES = "m-0 flex max-w-full list-none flex-wrap items-center gap-x-1 gap-y-0.5 p-0 text-sm leading-5";
const ITEM_CLASSES = "inline-flex min-w-0 items-center gap-1.5";
const LINK_CLASSES = "inline-flex min-w-0 items-center gap-1.5 rounded-[var(--ds-radius-xs)] text-[var(--ds-color-muted-foreground)] underline-offset-4 transition-colors duration-150 ease-out hover:text-[var(--ds-color-foreground)] hover:underline focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-[var(--ds-color-focus-ring)] motion-reduce:transition-none";
const CURRENT_CLASSES = "inline-flex min-w-0 items-center gap-1.5 font-medium text-[var(--ds-color-foreground)]";
const SEPARATOR_CLASSES = "inline-flex shrink-0 select-none items-center justify-center text-[var(--ds-color-muted-foreground)] [&_svg]:size-3.5";
const ICON_CLASSES = "inline-flex shrink-0 text-[14px] [&_svg]:size-3.5";
const DEFAULT_SEPARATOR = <svg
  viewBox="0 0 24 24"
  fill="none"
  stroke="currentColor"
  strokeWidth={1.75}
  strokeLinecap="round"
  strokeLinejoin="round"
  aria-hidden="true"
  focusable="false"
>
    <path d="m9 6 6 6-6 6" />
  </svg>;
const BreadcrumbsContext = createContext(null);
function useBreadcrumbs(component) {
  const context = useContext(BreadcrumbsContext);
  if (!context) {
    throw new Error(`<${component}> must be rendered inside <Breadcrumbs>.`);
  }
  return context;
}
function Breadcrumbs({
  label = "Breadcrumb",
  separator,
  className,
  children,
  ...rest
}) {
  return <BreadcrumbsContext.Provider value={{ separator: separator ?? DEFAULT_SEPARATOR }}>
      <nav aria-label={label} className={className} {...rest}>
        {children}
      </nav>
    </BreadcrumbsContext.Provider>;
}
function BreadcrumbList({ className, children, ...rest }) {
  return <ol className={cx(LIST_CLASSES, className)} {...rest}>
      {children}
    </ol>;
}
function BreadcrumbItem({ className, children, ...rest }) {
  return <li className={cx(ITEM_CLASSES, className)} {...rest}>
      {children}
    </li>;
}
function BreadcrumbLink({ href, icon, className, children, ...rest }) {
  return <a href={href} className={cx(LINK_CLASSES, className)} {...rest}>
      {icon ? <span aria-hidden="true" className={ICON_CLASSES}>
          {icon}
        </span> : null}
      <span className="min-w-0">{children}</span>
    </a>;
}
function BreadcrumbCurrent({ icon, className, children, ...rest }) {
  return <span aria-current="page" className={cx(CURRENT_CLASSES, className)} {...rest}>
      {icon ? <span aria-hidden="true" className={ICON_CLASSES}>
          {icon}
        </span> : null}
      <span className="min-w-0">{children}</span>
    </span>;
}
function BreadcrumbSeparator({ className, children, ...rest }) {
  const context = useBreadcrumbs("BreadcrumbSeparator");
  return <li
    role="presentation"
    aria-hidden="true"
    className={cx(SEPARATOR_CLASSES, className)}
    {...rest}
  >
      {children ?? context.separator}
    </li>;
}
const DROPDOWN_TRIGGER_CLASSES = "inline-flex min-w-0 items-center gap-1 rounded-[var(--ds-radius-xs)] text-[var(--ds-color-muted-foreground)] underline-offset-4 transition-colors duration-150 ease-out hover:text-[var(--ds-color-foreground)] hover:underline focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-[var(--ds-color-focus-ring)] aria-expanded:text-[var(--ds-color-foreground)] motion-reduce:transition-none";
const MENU_CLASSES = "absolute left-0 top-[calc(100%+4px)] z-40 min-w-[180px] rounded-[var(--ds-radius-md)] border border-[var(--ds-color-border)] bg-[var(--ds-color-surface-elevated)] p-1 shadow-[var(--ds-shadow-md)]";
const MENU_ITEM_CLASSES = "flex w-full items-center gap-1.5 rounded-[var(--ds-radius-sm)] px-2 py-1.5 text-[13px] leading-5 text-[var(--ds-color-foreground)] no-underline transition-colors duration-150 ease-out hover:bg-[var(--ds-color-surface-hover)] focus:bg-[var(--ds-color-surface-hover)] focus-visible:outline-2 focus-visible:outline-offset-[-2px] focus-visible:outline-[var(--ds-color-focus-ring)] motion-reduce:transition-none";
function BreadcrumbDropdown({
  label,
  items,
  className,
  ...rest
}) {
  const [open, setOpen] = useState(false);
  const triggerRef = useRef(null);
  const itemRefs = useRef([]);
  const containerRef = useRef(null);
  useEffect(() => {
    if (!open) return;
    function onDown(event) {
      if (containerRef.current && !containerRef.current.contains(event.target)) {
        setOpen(false);
      }
    }
    function onKey(event) {
      if (event.key === "Escape") {
        setOpen(false);
        triggerRef.current?.focus();
      }
      if (event.key === "Tab") {
        setOpen(false);
      }
    }
    document.addEventListener("mousedown", onDown);
    document.addEventListener("keydown", onKey);
    return () => {
      document.removeEventListener("mousedown", onDown);
      document.removeEventListener("keydown", onKey);
    };
  }, [open]);
  function openMenu(focusIndex) {
    setOpen(true);
    setTimeout(() => itemRefs.current[focusIndex]?.focus(), 0);
  }
  function onTriggerKeyDown(event) {
    if (event.key === "ArrowDown") {
      event.preventDefault();
      open ? itemRefs.current[0]?.focus() : openMenu(0);
    } else if (event.key === "ArrowUp") {
      event.preventDefault();
      open ? itemRefs.current[items.length - 1]?.focus() : openMenu(items.length - 1);
    }
  }
  function onItemKeyDown(event, index) {
    const count = items.length;
    if (event.key === "ArrowDown") {
      event.preventDefault();
      itemRefs.current[(index + 1) % count]?.focus();
    } else if (event.key === "ArrowUp") {
      event.preventDefault();
      itemRefs.current[(index - 1 + count) % count]?.focus();
    } else if (event.key === "Home") {
      event.preventDefault();
      itemRefs.current[0]?.focus();
    } else if (event.key === "End") {
      event.preventDefault();
      itemRefs.current[count - 1]?.focus();
    }
  }
  return <li ref={containerRef} className={cx("relative inline-flex min-w-0 items-center gap-1.5", className)}>
      <button
    type="button"
    ref={triggerRef}
    aria-haspopup="menu"
    aria-expanded={open}
    onClick={() => open ? setOpen(false) : openMenu(0)}
    onKeyDown={onTriggerKeyDown}
    className={DROPDOWN_TRIGGER_CLASSES}
    {...rest}
  >
        <span className="min-w-0">{label}</span>
        <svg
    viewBox="0 0 24 24"
    fill="none"
    stroke="currentColor"
    strokeWidth={1.75}
    strokeLinecap="round"
    strokeLinejoin="round"
    aria-hidden="true"
    focusable="false"
    className={cx(
      "size-3.5 shrink-0 transition-transform duration-150 ease-out motion-reduce:transition-none",
      open && "rotate-180"
    )}
  >
          <path d="m6 9 6 6 6-6" />
        </svg>
      </button>
      {open ? <div role="menu" aria-label={label} className={MENU_CLASSES}>
          {items.map((item, index) => <a
    key={item.href}
    ref={(el) => {
      itemRefs.current[index] = el;
    }}
    role="menuitem"
    tabIndex={-1}
    href={item.href}
    aria-current={item.current ? "page" : undefined}
    className={cx(MENU_ITEM_CLASSES, item.current && "font-medium")}
    onClick={() => setOpen(false)}
    onKeyDown={(event) => onItemKeyDown(event, index)}
  >
              {item.icon ? <span aria-hidden="true" className={ICON_CLASSES}>
                  {item.icon}
                </span> : null}
              <span className="min-w-0 flex-1">{item.label}</span>
            </a>)}
        </div> : null}
    </li>;
}

export { Breadcrumbs, BreadcrumbList, BreadcrumbItem, BreadcrumbLink, BreadcrumbCurrent, BreadcrumbSeparator, BreadcrumbDropdown };

export default Breadcrumbs;

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228

# Breadcrumbs With Dropdown

Breadcrumb trail where one level opens a keyboard-accessible menu of related pages — a real menu button with aria-haspopup and aria-expanded, containing real anchor links.

## Usage

```tsx
import Breadcrumbs, {
  BreadcrumbList,
  BreadcrumbItem,
  BreadcrumbLink,
  BreadcrumbCurrent,
  BreadcrumbSeparator,
  BreadcrumbDropdown,
} from "./breadcrumbs-with-dropdown";

<Breadcrumbs>
  <BreadcrumbList>
    <BreadcrumbItem>
      <BreadcrumbLink href="/">Home</BreadcrumbLink>
    </BreadcrumbItem>
    <BreadcrumbSeparator />
    <BreadcrumbItem>
      <BreadcrumbLink href="/documentation">Documentation</BreadcrumbLink>
    </BreadcrumbItem>
    <BreadcrumbSeparator />
    <BreadcrumbDropdown
      label="Components"
      items={[
        { label: "Buttons", href: "/documentation/components/buttons", current: true },
        { label: "Inputs", href: "/documentation/components/inputs" },
        { label: "Selects", href: "/documentation/components/selects" },
        { label: "Tabs", href: "/documentation/components/tabs" },
        { label: "Breadcrumbs", href: "/documentation/components/breadcrumbs" },
      ]}
    />
    <BreadcrumbSeparator />
    <BreadcrumbItem>
      <BreadcrumbCurrent>Buttons</BreadcrumbCurrent>
    </BreadcrumbItem>
  </BreadcrumbList>
</Breadcrumbs>
```

## JavaScript

A `code.jsx` build is provided for projects that ship plain JSX. It exposes the same API and behavior as `code.tsx` — only the TypeScript types are removed.

```jsx
import Breadcrumbs, {
  BreadcrumbList,
  BreadcrumbItem,
  BreadcrumbLink,
  BreadcrumbCurrent,
  BreadcrumbSeparator,
  BreadcrumbDropdown,
} from "./breadcrumbs-with-dropdown";

<Breadcrumbs>
  <BreadcrumbList>
    <BreadcrumbItem>
      <BreadcrumbLink href="/">Home</BreadcrumbLink>
    </BreadcrumbItem>
    <BreadcrumbSeparator />
    <BreadcrumbItem>
      <BreadcrumbLink href="/documentation">Documentation</BreadcrumbLink>
    </BreadcrumbItem>
    <BreadcrumbSeparator />
    <BreadcrumbDropdown
      label="Components"
      items={[
        { label: "Buttons", href: "/documentation/components/buttons", current: true },
        { label: "Inputs", href: "/documentation/components/inputs" },
        { label: "Selects", href: "/documentation/components/selects" },
        { label: "Tabs", href: "/documentation/components/tabs" },
        { label: "Breadcrumbs", href: "/documentation/components/breadcrumbs" },
      ]}
    />
    <BreadcrumbSeparator />
    <BreadcrumbItem>
      <BreadcrumbCurrent>Buttons</BreadcrumbCurrent>
    </BreadcrumbItem>
  </BreadcrumbList>
</Breadcrumbs>
```

## Props

### `<Breadcrumbs>`

| Name | Type | Default | Description |
|---|---|---|---|
| `label` | `string` | `"Breadcrumb"` | Accessible label for the `<nav>` landmark. |
| `separator` | `ReactNode` | chevron icon | Default separator content for every `<BreadcrumbSeparator>` without children. |
| `className` | `string` | — | Extra classes on the `<nav>`. |
| `children` | `ReactNode` | — | `BreadcrumbList` composition. |

### `<BreadcrumbList>`

| Name | Type | Default | Description |
|---|---|---|---|
| `className` | `string` | — | Extra classes on the `<ol>`. |
| `children` | `ReactNode` | — | `BreadcrumbItem` + `BreadcrumbSeparator` elements. |

### `<BreadcrumbItem>`

| Name | Type | Default | Description |
|---|---|---|---|
| `className` | `string` | — | Extra classes on the `<li>`. |
| `children` | `ReactNode` | — | Usually one `BreadcrumbLink` or `BreadcrumbCurrent`. |

### `<BreadcrumbLink>`

| Name | Type | Default | Description |
|---|---|---|---|
| `href` | `string` (required) | — | Destination URL — rendered as a real anchor with normal browser navigation. |
| `icon` | `ReactNode` | — | Meaningful leading icon (rendered `aria-hidden`). |
| `className` | `string` | — | Extra classes on the anchor. |
| `children` | `ReactNode` | — | Visible label. |

All native anchor attributes (`target`, `rel`, `aria-label`, `title`, …) are forwarded.

### `<BreadcrumbCurrent>`

| Name | Type | Default | Description |
|---|---|---|---|
| `icon` | `ReactNode` | — | Meaningful leading icon (rendered `aria-hidden`). |
| `className` | `string` | — | Extra classes on the span. |
| `children` | `ReactNode` | — | Visible label (rendered with `aria-current="page"`). |

### `<BreadcrumbSeparator>`

| Name | Type | Default | Description |
|---|---|---|---|
| `className` | `string` | — | Extra classes on the list item. |
| `children` | `ReactNode` | context `separator` | Custom separator content for this position only. |

### `<BreadcrumbDropdown>`

| Name | Type | Default | Description |
|---|---|---|---|
| `label` | `string` (required) | — | Visible trigger label — the name of this breadcrumb level. Also the menu's `aria-label`. |
| `items` | `BreadcrumbDropdownItem[]` (required) | — | Related pages offered at this level. |
| `aria-label` | `string` | `label` | Accessible name override for the trigger. |
| `className` | `string` | — | Extra classes on the wrapping list item. |

`BreadcrumbDropdownItem` = `{ label: ReactNode; href: string; icon?: ReactNode; current?: boolean }`. Set `current` on the item matching the page you are on — it is marked `aria-current="page"` and emphasized.

## Composition

Breadcrumbs is a compound component. Six primitives compose the pattern:

```tsx
<Breadcrumbs>
  <BreadcrumbList>
    <BreadcrumbItem>
      <BreadcrumbLink href="/">Home</BreadcrumbLink>
    </BreadcrumbItem>
    <BreadcrumbSeparator />
    <BreadcrumbItem>
      <BreadcrumbLink href="/documentation">Documentation</BreadcrumbLink>
    </BreadcrumbItem>
    <BreadcrumbSeparator />
    <BreadcrumbItem>
      <BreadcrumbCurrent>Buttons</BreadcrumbCurrent>
    </BreadcrumbItem>
  </BreadcrumbList>
</Breadcrumbs>
```

- `Breadcrumbs` — the root `<nav aria-label="Breadcrumb">` landmark. Provides the default `separator` to every separator through context.
- `BreadcrumbList` — the ordered list (`<ol>`). Wraps onto multiple lines instead of scrolling horizontally.
- `BreadcrumbItem` — one level of the trail (`<li>`).
- `BreadcrumbLink` — a real `<a href>` for navigable levels: normal browser navigation, optional leading `icon`.
- `BreadcrumbCurrent` — the current page: plain text with `aria-current="page"`, never a link.
- `BreadcrumbSeparator` — decorative structure between levels (`role="presentation"`, `aria-hidden`); renders its own `children`, else the `separator` given to `<Breadcrumbs>`, else the default chevron.

`<BreadcrumbDropdown>` renders its own `<li>` and slots between separators like any other level. Only that level becomes a menu — the rest of the trail stays plain breadcrumb navigation.

## Keyboard Interaction

| Key | Behavior |
|---|---|
| `Enter` / `Space` / `ArrowDown` | Open the menu and focus the first item |
| `ArrowUp` (closed) | Open the menu and focus the last item |
| `ArrowDown` / `ArrowUp` (open) | Move between menu items (wraps around) |
| `Home` / `End` | Jump to the first / last menu item |
| `Enter` | Follow the focused menu link |
| `Escape` | Close the menu and return focus to the trigger |
| `Tab` | Close the menu and continue through the page |

## Accessibility

The structure follows the W3C Breadcrumb pattern: a `<nav aria-label="Breadcrumb">` landmark containing an ordered list (`<ol>`) whose last item is the current page marked with `aria-current="page"`.

- Every navigable level is a real `<a href>` — normal browser navigation, no click handlers faking links.
- The current page is plain text, not a link; assistive technology announces it as the current page.
- Separators are `aria-hidden` `role="presentation"` list items — never announced, never focusable.
- Icons are decorative (`aria-hidden`); the visible label always carries the accessible name.

The trigger is a real `<button>` with `aria-haspopup="menu"` and `aria-expanded`; the menu is `role="menu"` of real `<a role="menuitem">` links, labelled by the level name. Escape closes and returns focus to the trigger; pointer interaction outside closes the menu. Focus moves into the menu on open and cycles with the arrow keys.

## States

- **Link** — muted foreground; hover shifts to the foreground color with an underline.
- **Current page** — foreground color at medium weight; not interactive.
- **Separator** — muted decorative glyph, hidden from assistive technology.
- **Focus-visible** — `--ds-color-focus-ring` outline on links and menu triggers in both themes.
- **Dropdown trigger** — styled as a breadcrumb link with a chevron; the chevron rotates 180° while open and the label takes the foreground color (`aria-expanded` state, not color alone).
- **Menu items** — `surface-hover` on hover/focus; the `current` item is medium weight with `aria-current="page"`.

## Responsive Behavior

The trigger is a `min-w-0` flexible item, so a long level name truncates with the rest of the trail on narrow screens. The menu is absolutely positioned under its level with `min-w-[180px]`; keep item labels short enough to fit small viewports.

The list uses `flex-wrap` with a `min-w-0` flexible item per level, so long trails wrap onto multiple lines instead of forcing page-level horizontal scrolling. From 375px up, prefer intentional reduction over squeezing: collapse middle levels with `breadcrumbs-collapsed` and cap long labels with `breadcrumbs-max-width`.

## Styling

Built with React, Tailwind CSS, and DevSnips design tokens. The component consumes the `--ds-*` semantic tokens via arbitrary values (for example `text-[var(--ds-color-muted-foreground)]`). Define the tokens once in your theme — no component-specific CSS file is required.

## Design Tokens

See [React/DESIGN_TOKENS.md](../../../DESIGN_TOKENS.md) for the authoritative token specification. This breadcrumb variant uses the semantic color, radius, typography, and motion tokens.

## Notes

Use the dropdown when a level has meaningful siblings a reader may want to jump between (component categories, doc sections). Do not turn the whole trail into a menu — one level at most.