# @rc-component/dropdown

react dropdown component.

[![NPM version][npm-image]][npm-url] [![npm download][download-image]][download-url] [![build status][github-actions-image]][github-actions-url] [![Codecov][codecov-image]][codecov-url] [![bundle size][bundlephobia-image]][bundlephobia-url] [![dumi][dumi-image]][dumi-url]

[npm-image]: https://img.shields.io/npm/v/@rc-component/dropdown.svg?style=flat-square
[npm-url]: https://npmjs.org/package/@rc-component/dropdown
[travis-image]: https://img.shields.io/travis/react-component/dropdown/master?style=flat-square
[travis-url]: https://travis-ci.com/react-component/dropdown
[github-actions-image]: https://github.com/react-component/dropdown/actions/workflows/ci.yml/badge.svg
[github-actions-url]: https://github.com/react-component/dropdown/actions/workflows/ci.yml
[codecov-image]: https://img.shields.io/codecov/c/github/react-component/dropdown/master.svg?style=flat-square
[codecov-url]: https://app.codecov.io/gh/react-component/dropdown
[david-url]: https://david-dm.org/react-component/dropdown
[david-image]: https://david-dm.org/react-component/dropdown/status.svg?style=flat-square
[david-dev-url]: https://david-dm.org/react-component/dropdown?type=dev
[david-dev-image]: https://david-dm.org/react-component/dropdown/dev-status.svg?style=flat-square
[download-image]: https://img.shields.io/npm/dm/@rc-component/dropdown.svg?style=flat-square
[download-url]: https://npmjs.org/package/@rc-component/dropdown
[bundlephobia-url]: https://bundlephobia.com/package/@rc-component/dropdown
[bundlephobia-image]: https://badgen.net/bundlephobia/minzip/@rc-component/dropdown
[dumi-url]: https://github.com/umijs/dumi
[dumi-image]: https://img.shields.io/badge/docs%20by-dumi-blue?style=flat-square

## Screenshot

![](https://t.alipayobjects.com/images/rmsweb/T1bWpgXgBaXXXXXXXX.png)

## Example

online example: http://react-component.github.io/dropdown/examples/

## install

[![@rc-component/dropdown](https://nodei.co/npm/@rc-component/dropdown.png)](https://npmjs.org/package/@rc-component/dropdown)

## Usage

```js
var Dropdown = require('@rc-component/dropdown');
// use dropdown
```

## API

### props

<table class="table table-bordered table-striped">
    <thead>
    <tr>
        <th style="width: 100px;">name</th>
        <th style="width: 50px;">type</th>
        <th style="width: 50px;">default</th>
        <th>description</th>
    </tr>
    </thead>
    <tbody>
        <tr>
          <td>overlayClassName</td>
          <td>String</td>
          <td></td>
          <td>additional css class of root dom node</td>
        </tr>
        <tr>
          <td>openClassName</td>
          <td>String</td>
          <td>`${prefixCls}-open`</td>
          <td>className of trigger when dropdown is opened</td>
        </tr>
        <tr>
          <td>prefixCls</td>
          <td>String</td>
          <td>rc-dropdown</td>
          <td>prefix class name</td>
        </tr>
        <tr>
          <td>transitionName</td>
          <td>String</td>
          <td></td>
          <td>dropdown menu's animation css class name</td>
        </tr>
        <tr>
          <td>animation</td>
          <td>String</td>
          <td></td>
          <td>part of dropdown menu's animation css class name</td>
        </tr>
        <tr>
          <td>placement</td>
          <td>String</td>
          <td>bottomLeft</td>
          <td>Position of menu item. There are: top, topCenter, topRight, bottomLeft, bottom, bottomRight </td>
        </tr>
        <tr>
          <td>onVisibleChange</td>
          <td>Function</td>
          <td></td>
          <td>call when visible is changed</td>
        </tr>
        <tr>
          <td>visible</td>
          <td>boolean</td>
          <td></td>
          <td>whether tooltip is visible</td>
        </tr>
        <tr>
          <td>defaultVisible</td>
          <td>boolean</td>
          <td></td>
          <td>whether tooltip is visible initially</td>
        </tr>
        <tr>
          <td>overlay</td>
          <td>rc-menu</td>
          <td></td>
          <td><a href="https://github.com/react-component/menu">rc-menu</a> element</td>
        </tr>
        <tr>
          <td>onOverlayClick</td>
          <td>function(e)</td>
          <td></td>
          <td>call when overlay is clicked</td>
        </tr>
        <tr>
          <td>minOverlayWidthMatchTrigger</td>
          <td>boolean</td>
          <td>true (false when set alignPoint)</td>
          <td>whether overlay's width must not be less than trigger's </td>
        </tr>
        <tr>
          <td>getPopupContainer</td>
          <td>Function(menuDOMNode): HTMLElement</td>
          <th>() => document.body</th>
          <td>Where to render the DOM node of dropdown</td>
        </tr>
    </tbody>
</table>

Note: Additional props are passed into the underlying [rc-trigger](https://github.com/react-component/trigger) component. This can be useful for example, to display the dropdown in a separate [portal](https://reactjs.org/docs/portals.html)-driven window via the `getDocument()` rc-trigger prop.

## Development

```bash
npm install
npm start
```

## Test Case

```bash
npm test
npm run chrome-test
```

## Coverage

```bash
npm run coverage
```

open coverage/ dir

## License

@rc-component/dropdown is released under the MIT license.