javascript - React Gatsbyjs - 使用样式组件传递 props

Question

我在带有样式组件的 GatsbyJS 项目中遇到了问题。我将一个 prop 传递到 ContentBlock 组件中，然后该组件应传递给样式化的 StyledContentBlock 组件，该组件应根据 prop 的值进行调整。

但是这不起作用。 CSS 永远不会改变，将 fullWidth 设置为 true 没有效果。

ContentBlock 组件:

import PropTypes from "prop-types"
import React from "react"
import styled from "styled-components"
import device from "../shared/devices"
import H2 from "./h2"

const StyledContentBlock = styled.div`
  @media ${device.mobile} {
    grid-column-start: 1;
    grid-column-end: 3;
  }

  @media ${device.tablet} {
    grid-column-start: 1;
    grid-column-end: ${props => props.fullWidth ? 7 : 4};
  }
`

const ContentBlockHeading = styled(H2)`
  @media ${device.mobile} {
    margin-bottom: 20px;
  }

  @media ${device.tablet} {
    margin-bottom: 20px;
  }

  @media ${device.desktop} {
    margin-bottom: 22px;
  }
`

const ContentBlock = ({ title, fullWidth, children }) => (
  <StyledContentBlock>
    <ContentBlockHeading>{title}</ContentBlockHeading>
    {children}
  </StyledContentBlock>
);

ContentBlock.propTypes = {
  title: PropTypes.string,
  fullWidth: PropTypes.bool,
  children: PropTypes.node.isRequired,
}

ContentBlock.defaultProps = {
  title: '',
  fullWidth: false,
}

export default ContentBlock

在页面上使用它:

import React from "react"

import Layout from "../components/layout"
import ContentBlock from "../components/content-block"

const IndexPage = () => (
  <Layout>
    <ContentBlock title="Some title">
    </ContentBlock>
    <ContentBlock title="Some other title" fullWidth>
    </ContentBlock>
  </Layout>
)

export default IndexPage

我已经没脑子了。这里发生了什么？我还尝试不使用模式匹配并直接访问 props 对象。无效:

const ContentBlock = (props) => (
  // etc

Answer 1

尝试将 props 传递给样式组件

const ContentBlock = (props) => (
  <StyledContentBlock {...props}>
    <ContentBlockHeading>{props.title}</ContentBlockHeading>
    {props.children}
  </StyledContentBlock>
);

或者通过解构传递

const ContentBlock = ({ title, fullWidth, children }) => (
  <StyledContentBlock fullWidth={fullWidth}>
    <ContentBlockHeading>{title}</ContentBlockHeading>
    {children}
  </StyledContentBlock>
);