Chakra Factory

Chakra factory serves as an object of chakra enabled JSX elements, and also a function that can be used to enable custom component receive chakra's style props.

import { chakra } from "@chakra-ui/react"

Chakra JSX Elements#

Create base html elements with theme-aware style props using chakra.<element> notation. For example, if you want a plain html button with ability to pass chakra styles, you can write <chakra.button />.

<chakra.button
  px="3"
  py="2"
  bg="green.200"
  rounded="md"
  _hover={{ bg: "green.300" }}
>
  Click me
</chakra.button>

This reduces the need to create custom component wrappers and name them. This syntax is available for common html elements. See the reference for the full list of elements supported.

<chakra.h1 fontSize="lg"> Heading </chakra.h1>

Chakra factory function#

This is a function that converts non-chakra components or jsx element to chakra-enabled components so you can pass style props to them.

Consider a package called react-input-autoresize, let's use the chakra factory function to make possible to pass style props.

The function will infer the prop types from the wrapped component and also add chakra style props.

import { chakra } from "@chakra-ui/react"
import Textarea from "react-input-autoresize"
const AutoResizeInput = chakra(Textarea)
function Example() {
  return <AutoResizeInput bg="red.200" fontSize="12px" />
}

Considering that Chakra uses emotion under the hood, ensure the non-chakra component accepts className as props for this to work correctly

Attaching styles#

In some instances, you might need to attach specific styles to the component wrapped in the chakra factory

const AutoResizeInput = chakra(AutoResizeInput, {
  baseStyle: {
    bg: "papayawhip",
    color: "red.500",
  },
})

You can also use the chakra factory on jsx elements as well.

const Card = chakra("div", {
  baseStyle: {
    shadow: "lg",
    rounded: "lg",
    bg: "white",
  },
})

Allowing custom props to be forwarded#

By default, the chakra factory only filters chakra related style props from getting to the DOM. For more fine-grained control of how and what prop should be forwarded, pass the shouldForwardProp option.

Here's a simple example that allows all props (including chakra's style props) to pass through except the sample prop.

const Div = chakra("div", {
  shouldForwardProp: (prop) => !["sample"].includes(prop),
})

Another example that combines the default shouldForwardProp from Chakra UI with custom logic.

import { shouldForwardProp } from "@chakra-ui/react"
const Div = chakra("div", {
  shouldForwardProp: (prop) => {
    // don't forward Chakra's props
    const isChakraProp = !shouldForwardProp(prop)
    if (isChakraProp) return false
    // else, only forward `sample` prop
    return ["sample"].includes(prop)
  },
})

To filter non-HTML attributes, you can leverage @emotion/is-prop-valid package.

import isValidHTMLProp from "@emotion/is-prop-valid"
import { shouldForwardProp } from "@chakra-ui/react"
const Div = chakra("div", {
  shouldForwardProp: (prop) => {
    // don't forward Chakra's props
    const isChakraProp = !shouldForwardProp(prop)
    if (isChakraProp) return false
    // forward valid HTML props
    const isValidProp = isValidHMTLProp(prop)
    if (isValidProp) return true
    // else, only forward `sample` prop
    return ["sample"].includes(prop)
  },
})