Portal

Portal is used to transport any component or element to the end of document.body and renders a React tree into it.

Useful for rendering a natural React element hierarchy with a different DOM hierarchy to prevent parent styles from clipping or hiding content (for popovers, dropdowns, and modals). It supports nested portals

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Import#

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

Usage#

I'm here,

function Example() {
  return (
    <Box bg="red.400" color="white">
      I'm here,
      <Portal>This text is portaled at the end of document.body!</Portal>
    </Box>
  )
}

function Example() {
  return (
    <Box bg="red.400" color="white">
      I'm here,
      <Portal>This text is portaled at the end of document.body!</Portal>
    </Box>
  )
}

Editable Example

Using a custom container#

You can render the contents within a portal to a different DOM node, instead of the default document.body. Pass the containerRef prop and set its value to the ref of the container you'd like to use.

I'm here,

Container: Hey,

function Example() {
  const ref = React.useRef()
  return (
    <Box bg="red.400" color="white">
      I'm here,
      <Portal containerRef={ref}>
        Portal: This text is portaled to the yellow box!
      </Portal>
      <Box ref={ref} bg="yellow.500">
        <div>Container: Hey,</div>
      </Box>
    </Box>
  )
}

function Example() {
  const ref = React.useRef()
  return (
    <Box bg="red.400" color="white">
      I'm here,
      <Portal containerRef={ref}>
        Portal: This text is portaled to the yellow box!
      </Portal>
      <Box ref={ref} bg="yellow.500">
        <div>Container: Hey,</div>
      </Box>
    </Box>
  )
}

Editable Example

Nesting Portals#

You can also nest multiple portals within themselves, this will create a nested DOM hierarchy to make it easy to create nested modals, popovers, etc.

function Example() {
  const ref = React.useRef()
  return (
    <div>
      <Portal containerRef={ref}>
        <Box bg="teal.500" color="white">
          Parent: Hey welcome,
          <Portal>Child: I'm attached to my parent portal</Portal>
        </Box>
      </Portal>
      <Box bg="red.400" color="white" ref={ref} />
    </div>
  )
}

function Example() {
  const ref = React.useRef()
  return (
    <div>
      <Portal containerRef={ref}>
        <Box bg="teal.500" color="white">
          Parent: Hey welcome,
          <Portal>Child: I'm attached to my parent portal</Portal>
        </Box>
      </Portal>
      <Box bg="red.400" color="white" ref={ref} />
    </div>
  )
}

Editable Example

Opting out of portal nesting#

In some cases, you might not want portal nodes to be nested to their parent portals. To opt out of this, pass appendToParentPortal and set it to false

function Example() {
  const ref = React.useRef()
  return (
    <div>
      <Portal containerRef={ref}>
        <Box bg="teal.500" color="white">
          Parent: Hey welcome,
          <Portal appendToParentPortal={false}>
            Child: I'm going to document.body
          </Portal>
        </Box>
      </Portal>
      <div style={{ background: "red" }} ref={ref} />
    </div>
  )
}

function Example() {
  const ref = React.useRef()
  return (
    <div>
      <Portal containerRef={ref}>
        <Box bg="teal.500" color="white">
          Parent: Hey welcome,
          <Portal appendToParentPortal={false}>
            Child: I'm going to document.body
          </Portal>
        </Box>
      </Portal>
      <div style={{ background: "red" }} ref={ref} />
    </div>
  )
}

Editable Example

Props#

Name	Type	Description	Default
children	required`ReactNode`	The content or node you'll like to portal	-
appendToParentPortal	`boolean`	If `true`, the portal will check if it is within a parent portal and append itself to the parent's portal node. This provides nesting for portals. If `false`, the portal will always append to `document.body` regardless of nesting. It is used to opt out of portal nesting.	-
containerRef	`RefObject<HTMLElement \| null>`	The `ref` to the component where the portal will be attached to.	-

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