15

如果我想要一个按钮,但只是其中的展示部分,那么如果我这样做:

import styled from 'styled-components'

const Button = styled.button`
  color: red;
  text-align: center;
`

我被迫渲染一个button标签,但是如果语义上我需要一个锚怎么办?

4

6 回答 6

25

在中使用“as”多态道具v4

从文档中的示例复制/意大利面:

const Component = styled.div`
  color: red;
`;

render(
  <Component
    as="button"
    onClick={() => alert('It works!')}
  >
    Hello World!
  </Component>
)
于 2019-01-24T17:01:51.977 回答
6

我在 styled-components 问题跟踪器上问过同样的问题:https ://github.com/styled-components/styled-components/issues/494

我发现的当前“解决方案”是:

// agnosticStyled.js
import React from 'react'
import styled from 'styled-components'

export default styled(
  ({tag = 'div', children, ...props}) =>
    React.createElement(tag, props, children)
)

然后当你需要它时:

import React from 'react'
import styled from './agnosticStyled'

 const Button = styled`
   color: palevioletred;
   text-transform: uppercase;
 `

 export default Button

最后:

import React from 'react'
import Button from './Button'

const Component = () => 
  <div>
    <Button>button</Button>
    <Button tag="button">button</Button>
    <Button tag="a" href="https://google.com">button</Button>
   </div>

export default Component 

这是一个完整的功能示例:https ://codesandbox.io/s/6881pjMLQ

于 2017-04-16T07:29:41.117 回答
6

您也可以将它与锚标签一起使用,没有什么能阻止您。

import styled from 'styled-components'

const Button = styled.a`
  color: red;
  text-align: center;
`

如果你想保留两者,你可以通过拉出它们来重用它们:

import styled from 'styled-components'

const styles = `
  color: red;
  text-align: center;
`

const Button = styled.button`
  ${styles}
`

const LinkButton = styled.a`
  ${styles}
`
于 2017-04-15T07:34:25.463 回答
5

styled-components提供了withComponent这对于您想对组件使用不同标签的情况很有用。这类似于@siddharthkp 在函数中的答案,但使用了 API。

文档中的示例:

const Button = styled.button`
  color: palevioletred;
  font-size: 1em;
  margin: 1em;
  padding: 0.25em 1em;
  border: 2px solid palevioletred;
  border-radius: 3px;
`;

// We're replacing the <button> tag with an <a> tag, but reuse all the same styles
const Link = Button.withComponent('a')

// Use .withComponent together with .extend to both change the tag and use additional styles
const TomatoLink = Link.extend`
  color: tomato;
  border-color: tomato;
`;

render(
  <div>
    <Button>Normal Button</Button>
    <Link>Normal Link</Link>
    <TomatoLink>Tomato Link</TomatoLink>
  </div>
);
于 2017-12-26T19:25:58.580 回答
3

正如@typeoneerror 指出的那样,styled-components 提供WithComponent. 您可以使用它来基于包含标签的道具创建新组件。捎带这个例子,它看起来像这样:

const _Button = styled.button`
  color: palevioletred;
  font-size: 1em;
  margin: 1em;
  padding: 0.25em 1em;
  border: 2px solid palevioletred;
  border-radius: 3px;
`;

const Button = ({ as: tag = 'button', children, ...props }) => {

  // We're replacing the <button> tag with whatever tag is assigned to the 'as' prop (renamed to 'tag' and defaulted to button), but reuse all the same styles
  
  const Composed = _Button.withComponent(tag);
  
  // We return the newly-created component with all its props and children
  
  return <Composed {...props}>{children}</Composed>;
};

render(
  <div>
    <Button>Normal Button</Button>
    <Button as='a'>Normal Link</Button>
  </div>
);
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react-dom.min.js"></script>

于 2018-06-03T20:16:56.070 回答
3

既然我们只是使用 JavaScript,为什么不使用函数呢?

const myButtonStyle = (styled, tag) => {
  return styled[tag]`
    color: red;
    text-align: center;
  `
}

const Button = myButtonStyle(styled, 'button')
于 2017-02-13T21:52:52.137 回答