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material-ui-popup-state

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boilerplate for common Material-UI Menu, Popover and Popper use cases

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# material-ui-popup-state

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Takes care of the boilerplate for common Menu, Popover and Popper use cases.

Provides a [Custom React Hook](https://reactjs.org/docs/hooks-custom.html) that keeps track of the local state for a single popup, and functions to connect trigger, toggle, and
popover/menu/popper components to the state.

Also provides a [Render Props Component](https://reactjs.org/docs/render-props.html) that
keeps track of the local state for a single popup, and passes the state and
mutation functions to a child render function.

# Requirements

Requires MUI >= 5.0.0 and React >= 16.8.0.
For MUI v4 you'll need `material-ui-popup-state@^1.9.3`.

# Table of Contents

- [material-ui-popup-state](#material-ui-popup-state)
- [Requirements](#requirements)
- [Table of Contents](#table-of-contents)
- [Installation](#installation)
- [Examples with React Hooks](#examples-with-react-hooks)
  - [Menu](#menu)
  - [Popover](#popover)
  - [Popper](#popper)
- [React Hooks API](#react-hooks-api)
  - [Bind Functions](#bind-functions)
  - [`usePopupState`](#usepopupstate)
  - [`usePopupState` Props](#usepopupstate-props)
    - [`variant` (`'popover'`, `'popper'`, or `'dialog'`, **required**)](#variant-popover-popper-or-dialog-required)
    - [`popupId` (`string`, **optional**)](#popupid-string-optional)
    - [`disableAutoFocus` (`boolean`, **optional**)](#disableautofocus-boolean-optional)
  - [`usePopupState` return value](#usepopupstate-return-value)
- [Examples with Render Props](#examples-with-render-props)
  - [Menu](#menu-1)
  - [Popover](#popover-1)
  - [Mouse Over Interaction](#mouse-over-interaction)
  - [Popper](#popper-1)
- [Render Props API](#render-props-api)
  - [Bind Functions](#bind-functions-1)
  - [`PopupState` Props](#popupstate-props)
    - [`variant` (`'popover'`, `'popper'`, or `'dialog'`, **required**)](#variant-popover-popper-or-dialog-required-1)
    - [`popupId` (`string`, **optional**)](#popupid-string-optional)
    - [`disableAutoFocus` (`boolean`, **optional**)](#disableautofocus-boolean-optional-1)
    - [`children` (`(popupState: InjectedProps) => ?React.Node`, **required**)](#children-popupstate-injectedprops--reactnode-required)
- [Using `Popover` and `Menu` with `bindHover`](#using-popover-and-menu-with-bindhover)
- [Chaining event handlers](#chaining-event-handlers)
  - [Chaining event handlers manually](#chaining-event-handlers-manually)
  - [Using `material-ui-popup-state/chainEventHandlers`](#using-material-ui-popup-statechaineventhandlers)

# Installation

```sh
npm install --save material-ui-popup-state
```

# Examples with React Hooks

## Menu

```js
import * as React from 'react'
import Button from '@mui/material/Button'
import Menu from '@mui/material/Menu'
import MenuItem from '@mui/material/MenuItem'
import {
  usePopupState,
  bindTrigger,
  bindMenu,
} from 'material-ui-popup-state/hooks'

const MenuPopupState = () => {
  const popupState = usePopupState({ variant: 'popover', popupId: 'demoMenu' })
  return (
    <div>
      <Button variant="contained" {...bindTrigger(popupState)}>
        Open Menu
      </Button>
      <Menu {...bindMenu(popupState)}>
        <MenuItem onClick={popupState.close}>Cake</MenuItem>
        <MenuItem onClick={popupState.close}>Death</MenuItem>
      </Menu>
    </div>
  )
}

export default MenuPopupState
```

## Popover

```js
import React from 'react'
import PropTypes from 'prop-types'
import { withStyles } from '@mui/material/styles'
import Typography from '@mui/material/Typography'
import Button from '@mui/material/Button'
import Popover from '@mui/material/Popover'
import {
  usePopupState,
  bindTrigger,
  bindPopover,
} from 'material-ui-popup-state/hooks'

const styles = (theme) => ({
  typography: {
    margin: theme.spacing.unit * 2,
  },
})

const PopoverPopupState = ({ classes }) => {
  const popupState = usePopupState({
    variant: 'popover',
    popupId: 'demoPopover',
  })
  return (
    <div>
      <Button variant="contained" {...bindTrigger(popupState)}>
        Open Popover
      </Button>
      <Popover
        {...bindPopover(popupState)}
        anchorOrigin={{
          vertical: 'bottom',
          horizontal: 'center',
        }}
        transformOrigin={{
          vertical: 'top',
          horizontal: 'center',
        }}
      >
        <Typography className={classes.typography}>
          The content of the Popover.
        </Typography>
      </Popover>
    </div>
  )
}

PopoverPopupState.propTypes = {
  classes: PropTypes.object.isRequired,
}

export default withStyles(styles)(PopoverPopupState)
```

## Popper

```js
import React from 'react'
import PropTypes from 'prop-types'
import { withStyles } from '@mui/material/styles'
import Typography from '@mui/material/Typography'
import Button from '@mui/material/Button'
import Popper from '@mui/material/Popper'
import {
  usePopupState,
  bindToggle,
  bindPopper,
} from 'material-ui-popup-state/hooks'
import Fade from '@mui/material/Fade'
import Paper from '@mui/material/Paper'

const styles = (theme) => ({
  typography: {
    padding: theme.spacing.unit * 2,
  },
})

const PopperPopupState = ({ classes }) => {
  const popupState = usePopupState({ variant: 'popper', popupId: 'demoPopper' })
  return (
    <div>
      <Button variant="contained" {...bindToggle(popupState)}>
        Toggle Popper
      </Button>
      <Popper {...bindPopper(popupState)} transition>
        {({ TransitionProps }) => (
          <Fade {...TransitionProps} timeout={350}>
            <Paper>
              <Typography className={classes.typography}>
                The content of the Popper.
              </Typography>
            </Paper>
          </Fade>
        )}
      </Popper>
    </div>
  )
}

PopperPopupState.propTypes = {
  classes: PropTypes.object.isRequired,
}

export default withStyles(styles)(PopperPopupState)
```

# React Hooks API

## Bind Functions

`material-ui-popup-state/hooks` exports several helper functions you can use to
connect components easily:

- `anchorRef`: creates a `ref` function to pass to the `anchorEl`
  (by default, the `currentTarget` of the mouse event that triggered the popup
  is used; only use `anchorRef` if you want a different element to be the anchor).
- `bindMenu`: creates props to control a `Menu` component.
- `bindPopover`: creates props to control a `Popover` component.
- `bindPopper`: creates props to control a `Popper` component.
- `bindDialog`: creates props to control a `Dialog` component.
- `bindTrigger`: creates props for a component that opens the popup when clicked.
- `bindContextMenu`: creates props for a component that opens the popup on when right clicked (`contextmenu` event).
  **NOTE**: `bindPopover`/`bindMenu` will position the Popover/Menu to the `contextmenu` event location. To position
  using the `contextmenu` target element instead, pass `anchorReference="anchorEl"` after `{...bindPopover(popupState)}`/`{...bindMenu(popupState)}`.
- `bindToggle`: creates props for a component that toggles the popup when clicked.
- `bindHover`: creates props for a component that opens the popup while hovered.
  **NOTE**: See [this guidance](#using-popover-and-menu-with-bindhover) if you are using `bindHover` with `Popover` or `Menu`.
- `bindFocus`: creates props for a component that opens the popup while focus.
- `bindDoubleClick`: creates props for a component that opens the popup while double click.

To use one of these functions, you should call it with the object
returned by `usePopupState` and spread the return value into the desired
element:

export default MenuPopupState
```

## `usePopupState`

This is a [Custom Hook](https://reactjs.org/docs/hooks-custom.html) that uses `useState` internally, therefore the [Rules of Hooks](https://reactjs.org/docs/hooks-rules.html) apply to `usePopupState`.

## `usePopupState` Props

### `variant` (`'popover'`, `'popper'`, or `'dialog'`, **required**)

Use `'popover'` if your popup is a `Popover` or `Menu`; use `'popper'` if your
popup is a `Popper`.

Right now this only affects whether `bindTrigger`/`bindToggle`/`bindHover` return
an `aria-controls` prop or an `aria-describedby` prop.

### `popupId` (`string`, **optional**)

The `id` for the popup component. It will be passed to the child props so that
the trigger component may declare the same id in an ARIA prop.

Defaults to `React.useId()` if `React.useId` exists; in older versions of React
you will have to manually provide a `popupId`.

### `disableAutoFocus` (`boolean`, **optional**)

If `true`, will not steal focus when the popup is opened. (And `bindPopover`/`bindMenu` will inject `disableAutoFocus`, `disableEnforceFocus`, and `disableRestoreFocus`).

Defaults to `true` when the popup is opened by the `bindHover` or `bindFocus` element.

## `usePopupState` return value

An object with the following properties:

- `open([eventOrAnchorEl])`: opens the popup. You must pass in an anchor element or an event with a `currentTarget`, otherwise the popup will not position properly and you will get a warning; MUI needs an anchor element to position the popup.
- `close()`: closes the popup
- `toggle([eventOrAnchorEl])`: opens the popup if it is closed, or closes the popup if it is open. If the popup is currently closed, you must pass an anchor element or an event with a `currentTarget`, otherwise the popup will not position properly and you will get a warning; MUI needs an anchor element to position the popup.
- `setOpen(open, [eventOrAnchorEl])`: sets whether the popup is open. If `open` is truthy, you must pass in an anchor element or an event with a `currentTarget`, otherwise the popup will not position properly and you will get a warning; MUI needs an anchor element to position the popup.
- `isOpen`: `true`/`false` if the popup is open/closed
- `anchorEl`: the current anchor element
- `anchorPosition`: the current anchor position
- `setAnchorEl`: sets the anchor element (the `currentTarget` of the triggering
  mouse event is used by default unless you have called `setAnchorEl`)
- `popupId`: the `popupId` prop you passed to `PopupState`
- `variant`: the `variant` prop you passed to `PopupState`

# Examples with Render Props

## Menu

```js
import * as React from 'react'
import Button from '@mui/material/Button'
import Menu from '@mui/material/Menu'
import MenuItem from '@mui/material/MenuItem'
import PopupState, { bindTrigger, bindMenu } from 'material-ui-popup-state'

const MenuPopupState = () => (
  <PopupState variant="popover" popupId="demoMenu">
    {(popupState) => (
      <React.Fragment>
        <Button variant="contained" {...bindTrigger(popupState)}>
          Open Menu
        </Button>
        <Menu {...bindMenu(popupState)}>
          <MenuItem onClick={popupState.close}>Cake</MenuItem>
          <MenuItem onClick={popupState.close}>Death</MenuItem>
        </Menu>
      </React.Fragment>
    )}
  </PopupState>
)

export default MenuPopupState
```

## Popover

```js
import React from 'react'
import PropTypes from 'prop-types'
import { withStyles } from '@mui/material/styles'
import Typography from '@mui/material/Typography'
import Button from '@mui/material/Button'
import Popover from '@mui/material/Popover'
import PopupState, { bindTrigger, bindPopover } from 'material-ui-popup-state'

const styles = (theme) => ({
  typography: {
    margin: theme.spacing.unit * 2,
  },
})

const PopoverPopupState = ({ classes }) => (
  <PopupState variant="popover" popupId="demoPopover">
    {(popupState) => (
      <div>
        <Button variant="contained" {...bindTrigger(popupState)}>
          Open Popover
        </Button>
        <Popover
          {...bindPopover(popupState)}
          anchorOrigin={{
            vertical: 'bottom',
            horizontal: 'center',
          }}
          transformOrigin={{
            vertical: 'top',
            horizontal: 'center',
          }}
        >
          <Typography className={classes.typography}>
            The content of the Popover.
          </Typography>
        </Popover>
      </div>
    )}
  </PopupState>
)

PopoverPopupState.propTypes = {
  classes: PropTypes.object.isRequired,
}

export default withStyles(styles)(PopoverPopupState)
```

## Mouse Over Interaction

```js
import React from 'react'
import PropTypes from 'prop-types'
import { withStyles } from '@mui/material/styles'
import Typography from '@mui/material/Typography'
import HoverPopover from 'material-ui-popup-state/HoverPopover'
import PopupState, { bindHover, bindPopover } from 'material-ui-popup-state'

const styles = (theme) => ({
  popover: {
    pointerEvents: 'none',
  },
  paper: {
    padding: theme.spacing.unit,
  },
})

const HoverPopoverPopupState = ({ classes }) => (
  <PopupState variant="popover" popupId="demoPopover">
    {(popupState) => (
      <div>
        <Typography {...bindHover(popupState)}>
          Hover with a Popover.
        </Typography>
        <HoverPopover
          {...bindPopover(popupState)}
          className={classes.popover}
          classes={{
            paper: classes.paper,
          }}
          anchorOrigin={{
            vertical: 'bottom',
            horizontal: 'center',
          }}
          transformOrigin={{
            vertical: 'top',
            horizontal: 'center',
          }}
        >
          <Typography>The content of the Popover.</Typography>
        </HoverPopover>
      </div>
    )}
  </PopupState>
)

HoverPopoverPopupState.propTypes = {
  classes: PropTypes.object.isRequired,
}

export default withStyles(styles)(HoverPopoverPopupState)
```

## Popper

```js
import React from 'react'
import PropTypes from 'prop-types'
import { withStyles } from '@mui/material/styles'
import Typography from '@mui/material/Typography'
import Button from '@mui/material/Button'
import Popper from '@mui/material/Popper'
import PopupState, { bindToggle, bindPopper } from 'material-ui-popup-state'
import Fade from '@mui/material/Fade'
import Paper from '@mui/material/Paper'

const styles = (theme) => ({
  typography: {
    padding: theme.spacing.unit * 2,
  },
})

const PopperPopupState = ({ classes }) => (
  <PopupState variant="popper" popupId="demoPopper">
    {(popupState) => (
      <div>
        <Button variant="contained" {...bindToggle(popupState)}>
          Toggle Popper
        </Button>
        <Popper {...bindPopper(popupState)} transition>
          {({ TransitionProps }) => (
            <Fade {...TransitionProps} timeout={350}>
              <Paper>
                <Typography className={classes.typography}>
                  The content of the Popper.
                </Typography>
              </Paper>
            </Fade>
          )}
        </Popper>
      </div>
    )}
  </PopupState>
)

PopperPopupState.propTypes = {
  classes: PropTypes.object.isRequired,
}

export default withStyles(styles)(PopperPopupState)
```

# Render Props API

## Bind Functions

`material-ui-popup-state` exports several helper functions you can use to
connect components easily:

To use one of these functions, you should call it with the props `PopupState`
passed to your child function, and spread the return value into the desired
element:

```js
import * as React from 'react'
import Button from '@mui/material/Button'
import Menu from '@mui/material/Menu'
import MenuItem from '@mui/material/MenuItem'
import PopupState, { bindTrigger, bindMenu } from 'material-ui-popup-state'

export default MenuPopupState
```

## `PopupState` Props

### `variant` (`'popover'`, `'popper'`, or `'dialog'`, **required**)

Use `'popover'` if your popup is a `Popover` or `Menu`; use `'popper'` if your
popup is a `Popper`.

Right now this only affects whether `bindTrigger`/`bindToggle`/`bindHover` return
an `aria-controls` prop or an `aria-describedby` prop.

### `popupId` (`string`, **optional**)

The `id` for the popup component. It will be passed to the child props so that
the trigger component may declare the same id in an ARIA prop.

Defaults to `React.useId()` if `React.useId` exists; in older versions of React
you will have to manually provide a `popupId`.

### `disableAutoFocus` (`boolean`, **optional**)

If `true`, will not steal focus when the popup is opened. (And `bindPopover`/`bindMenu` will inject `disableAutoFocus`, `disableEnforceFocus`, and `disableRestoreFocus`).

Defaults to `true` when the popup is opened by the `bindHover` or `bindFocus` element.

### `children` (`(popupState: InjectedProps) => ?React.Node`, **required**)

The render function. It will be called with an object containing the following
props (exported as the `InjectedProps` type):

- `open([eventOrAnchorEl])`: opens the popup
- `close()`: closes the popup
- `toggle([eventOrAnchorEl])`: opens the popup if it is closed, or closes the popup if it is open.
- `setOpen(open, [eventOrAnchorEl])`: sets whether the popup is open.
- `isOpen`: `true`/`false` if the popup is open/closed
- `anchorEl`: the current anchor element
- `anchorPosition`: the current anchor position
- `setAnchorEl`: sets the anchor element (the `currentTarget` of the triggering
  mouse event is used by default unless you have called `setAnchorEl`)
- `popupId`: the `popupId` prop you passed to `PopupState`
- `variant`: the `variant` prop you passed to `PopupState`

# Using `Popover` and `Menu` with `bindHover`

MUI's `Modal` (used by `Popover` and `Menu`) blocks pointer events to all other components, interfering with `bindHover`
(the popover or menu will open when the mouse enters the `bindHover` element, but won't close when the mouse leaves). You can
use the following components to work around this:

```js
import HoverMenu from 'material-ui-popup-state/HoverMenu'
import HoverPopover from 'material-ui-popup-state/HoverPopover'
```

These are just wrapper components that pass inline styles to prevent `Modal` from blocking pointer events.

# Chaining event handlers

What if you need to perform additional actions in `onClick`, but it's being injected by `{...bindTrigger(popupState)}` etc?

There are two options:

## Chaining event handlers manually

This is the most straightforward, explicit option.

```tsx
const button = (
  <Button
    {...bindTrigger(popupState)}
    onClick={(e: React.MouseEvent) => {
      bindTrigger(popupState).onClick(e)
      performCustomAction(e)
    }}
  >
    Open Menu
  </Button>
)
```

## Using `material-ui-popup-state/chainEventHandlers`

If you don't like the above option, you can use the provided `material-ui-popup-state/chainEventHandlers` helper:

```tsx
import { chainEventHandlers } from 'material-ui-popup-state/chainEventHandlers'

const button = (
  <Button
    {...chainEventHandlers(bindTrigger(popupState), {
      onClick: (e: React.MouseEvent) => {
        bindTrigger(popupState).onClick(e)
        performCustomAction(e)
      },
    })}
  >
    Open Menu
  </Button>
)
```

`chainEventHandlers` accepts a variable number of props arguments and combines any function props of the same name
into a function that invokes the chained functions in sequence. For all other properties the behavior is like
`Object.assign`.

> [!WARNING]  
> `chainEventHandlers` doesn't memoize the combined event handler functions, so they will cause components to
> rerender. If you need memoized functions, you will need to perform the memoization with your own code, for example
> using `React.useCallback` and [chaining event handlers manually](#chaining-event-handlers-manually).

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