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132 lines
3.6 KiB
Markdown
132 lines
3.6 KiB
Markdown
---
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category: Components
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group: Navigation
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title: Breadcrumb
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cover: https://mdn.alipayobjects.com/huamei_7uahnr/afts/img/A*I5a2Tpqs3y0AAAAAAAAAAAAADrJ8AQ/original
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coverDark: https://mdn.alipayobjects.com/huamei_7uahnr/afts/img/A*Tr90QKrE_LcAAAAAAAAAAAAADrJ8AQ/original
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demo:
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cols: 2
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---
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A breadcrumb displays the current location within a hierarchy. It allows going back to states higher up in the hierarchy.
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## When To Use
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- When the system has more than two layers in a hierarchy.
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- When you need to inform the user of where they are.
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- When the user may need to navigate back to a higher level.
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```jsx
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// works when >=5.3.0, recommended ✅
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return <Breadcrumb items={[{ title: 'sample' }]} />;
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// works when <5.3.0, deprecated when >=5.3.0 🙅🏻♀️
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return (
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<Breadcrumb>
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<Breadcrumb.Item>sample</Breadcrumb.Item>
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</Breadcrumb>
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);
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// or
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return <Breadcrumb routes={[{ breadcrumbName: 'sample' }]} />;
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```
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## Examples
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<!-- prettier-ignore -->
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<code src="./demo/basic.tsx">Basic Usage</code>
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<code src="./demo/withIcon.tsx">With an Icon</code>
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<code src="./demo/react-router.tsx" iframe="200">react-router V6</code>
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<code src="./demo/separator.tsx">Configuring the Separator</code>
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<code src="./demo/overlay.tsx">Bread crumbs with drop down menu</code>
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<code src="./demo/separator-component.tsx">Configuring the Separator</code>
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<code src="./demo/debug-routes.tsx">Debug Routes</code>
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## API
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### Breadcrumb
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| Property | Description | Type | Default | Version |
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| --- | --- | --- | --- | --- |
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| itemRender | Custom item renderer | (route, params, routes, paths) => ReactNode | - | |
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| params | Routing parameters | object | - | |
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| items | The routing stack information of router | [items\[\]](#ItemType) | - | 5.3.0 |
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| separator | Custom separator | ReactNode | `/` | |
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### ItemType
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> type ItemType = [RouteItemType](#RouteItemType) | [SeparatorType](#SeparatorType)
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### RouteItemType
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| Property | Description | Type | Default | Version |
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| --- | --- | --- | --- | --- |
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| className | The additional css class | string | - | |
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| dropdownProps | The dropdown props | [Dropdown](/components/dropdown) | - | |
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| href | Target of hyperlink | string | - | |
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| menu | The menu props | [MenuProps](/components/menu/#api) | - | 4.24.0 |
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| onClick | Set the handler to handle click event | (e:MouseEvent) => void | - | |
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| title | item name | ReactNode | - | |
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### SeparatorType
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```ts
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const item = {
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type: 'separator', // Must have
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separator: '/',
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};
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```
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| Property | Description | Type | Default | Version |
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| --------- | ----------------- | ----------- | ------- | ------- |
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| type | Mark as separator | `separator` | | 5.3.0 |
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| separator | Custom separator | ReactNode | `/` | 5.3.0 |
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### Use with browserHistory
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The link of Breadcrumb item targets `#` by default, you can use `itemRender` to make a `browserHistory` Link.
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```jsx
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import { Link } from 'react-router';
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const items = [
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{
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path: 'index',
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title: 'home',
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},
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{
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path: 'first',
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title: 'first',
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children: [
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{
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path: '/general',
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title: 'General',
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},
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{
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path: '/layout',
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title: 'Layout',
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},
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{
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path: '/navigation',
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title: 'Navigation',
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},
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],
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},
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{
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path: 'second',
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title: 'second',
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},
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];
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function itemRender(route, params, items, paths) {
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const last = items.indexOf(item) === items.length - 1;
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return last ? <span>{item.title}</span> : <Link to={paths.join('/')}>{item.title}</Link>;
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}
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return <Breadcrumb itemRender={itemRender} items={items} />;
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```
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## Design Token
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<ComponentTokenTable component="Breadcrumb"></ComponentTokenTable>
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