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131 lines
5.3 KiB
Markdown
131 lines
5.3 KiB
Markdown
---
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category: Components
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group: Data Display
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title: Collapse
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description: A content area which can be collapsed and expanded.
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cover: https://mdn.alipayobjects.com/huamei_7uahnr/afts/img/A*B7HKR5OBe8gAAAAAAAAAAAAADrJ8AQ/original
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coverDark: https://mdn.alipayobjects.com/huamei_7uahnr/afts/img/A*sir-TK0HkWcAAAAAAAAAAAAADrJ8AQ/original
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---
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## When To Use
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- Can be used to group or hide complex regions to keep the page clean.
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- `Accordion` is a special kind of `Collapse`, which allows only one panel to be expanded at a time.
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```tsx | pure
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// works when >= 5.6.0, recommended ✅
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const text = `
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A dog is a type of domesticated animal.
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Known for its loyalty and faithfulness,
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it can be found as a welcome guest in many households across the world.
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`;
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const items: CollapseProps['items'] = [
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{
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key: '1',
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label: 'This is panel header 1',
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children: <p>{text}</p>,
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},
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{
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key: '2',
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label: 'This is panel header 2',
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children: <p>{text}</p>,
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},
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{
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key: '3',
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label: 'This is panel header 3',
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children: <p>{text}</p>,
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},
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];
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<Collapse items={items} defaultActiveKey={['1']} />;
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// works when <5.6.0 , deprecated when >=5.6.0 🙅🏻♀️
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<Collapse defaultActiveKey={['1']} onChange={onChange}>
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<Panel header="This is panel header 1" key="1">
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<p>{text}</p>
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</Panel>
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<Panel header="This is panel header 2" key="2">
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<p>{text}</p>
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</Panel>
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<Panel header="This is panel header 3" key="3">
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<p>{text}</p>
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</Panel>
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</Collapse>;
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```
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## Examples
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<!-- prettier-ignore -->
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<code src="./demo/basic.tsx">Collapse</code>
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<code src="./demo/size.tsx">Size</code>
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<code src="./demo/accordion.tsx">Accordion</code>
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<code src="./demo/mix.tsx">Nested panel</code>
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<code src="./demo/borderless.tsx">Borderless</code>
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<code src="./demo/custom.tsx">Custom Panel</code>
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<code src="./demo/noarrow.tsx">No arrow</code>
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<code src="./demo/extra.tsx">Extra node</code>
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<code src="./demo/ghost.tsx">Ghost Collapse</code>
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<code src="./demo/collapsible.tsx">Collapsible</code>
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<code src="./demo/component-token.tsx" debug>Component Token</code>
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## API
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Common props ref：[Common props](/docs/react/common-props)
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### Collapse
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| Property | Description | Type | Default | Version |
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| --- | --- | --- | --- | --- |
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| accordion | If true, Collapse renders as Accordion | boolean | false | |
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| activeKey | Key of the active panel | string\[] \| string <br/> number\[] \| number | No default value. In [accordion mode](#collapse-demo-accordion), it's the key of the first panel | |
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| bordered | Toggles rendering of the border around the collapse block | boolean | true | |
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| collapsible | Specify how to trigger Collapse. Either by clicking icon or by clicking any area in header or disable collapse functionality itself | `header` \| `icon` \| `disabled` | - | 4.9.0 |
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| defaultActiveKey | Key of the initial active panel | string\[] \| string <br/> number\[] \| number | - | |
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| destroyInactivePanel | Destroy Inactive Panel | boolean | false | |
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| expandIcon | Allow to customize collapse icon | (panelProps) => ReactNode | - | |
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| expandIconPosition | Set expand icon position | `start` \| `end` | - | 4.21.0 |
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| ghost | Make the collapse borderless and its background transparent | boolean | false | 4.4.0 |
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| size | Set the size of collapse | `large` \| `middle` \| `small` | `middle` | 5.2.0 |
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| onChange | Callback function executed when active panel is changed | function | - | |
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| items | collapse items content | [ItemType](#itemtype) | - | 5.6.0 |
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### ItemType
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| Property | Description | Type | Default | Version |
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| --- | --- | --- | --- | --- |
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| classNames | Semantic structure className | [`Record<header \| body, string>`](#semantic-dom) | - | 5.21.0 |
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| collapsible | Specify whether the panel be collapsible or the trigger area of collapsible | `header` \| `icon` \| `disabled` | - | |
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| children | Body area content | ReactNode | - | |
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| extra | The extra element in the corner | ReactNode | - | |
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| forceRender | Forced render of content on panel, instead of lazy rendering after clicking on header | boolean | false | |
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| key | Unique key identifying the panel from among its siblings | string \| number | - | |
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| label | Title of the panel | ReactNode | - | - |
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| showArrow | If false, panel will not show arrow icon. If false, collapsible can't be set as icon | boolean | true | |
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| styles | Semantic DOM style | [`Record<header \| body, CSSProperties>`](#semantic-dom) | - | 5.21.0 |
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### Collapse.Panel
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<!-- prettier-ignore -->
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:::info{title=Deprecated}
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When using version >= 5.6.0, we prefer to configuring the panel by `items`.
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:::
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| Property | Description | Type | Default | Version |
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| --- | --- | --- | --- | --- |
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| collapsible | Specify whether the panel be collapsible or the trigger area of collapsible | `header` \| `icon` \| `disabled` | - | 4.9.0 (icon: 4.24.0) |
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| extra | The extra element in the corner | ReactNode | - | |
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| forceRender | Forced render of content on panel, instead of lazy rendering after clicking on header | boolean | false | |
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| header | Title of the panel | ReactNode | - | |
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| key | Unique key identifying the panel from among its siblings | string \| number | - | |
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| showArrow | If false, panel will not show arrow icon. If false, collapsible can't be set as icon | boolean | true | |
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## Semantic DOM
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<code src="./demo/_semantic.tsx" simplify="true"></code>
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## Design Token
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<ComponentTokenTable component="Collapse"></ComponentTokenTable>
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