@leafygreen-ui/combobox

Combobox

View on MongoDB.design

Installation

Yarn

yarn add @leafygreen-ui/combobox

NPM

npm install @leafygreen-ui/combobox

Example

import { Combobox, ComboboxOption } from '@leafygreen-ui/combobox';

<Combobox
  label="Choose a fruit"
  description="Please pick one"
  placeholder="Select fruit"
>
  <ComboboxOption value="apple" />
  <ComboboxOption value="banana" />
  <ComboboxOption value="carrot" />
  <ComboboxOption value="dragonfruit" />
  <ComboboxGroup label="Peppers">
    <ComboboxOption value="cayenne" />
    <ComboboxOption value="habanero" />
    <ComboboxOption value="jalapeno" displayName="Jalapeño" />
  </ComboboxGroup>
</Combobox>;

Output HTML

<div>
  <div>
    <label id="combobox-label-1" for="combobox-input-1"> Choose a fruit </label>
    <p>Please pick one</p>
  </div>
  <div>
    <div
      role="combobox"
      aria-expanded="true"
      aria-controls="combobox-menu-1"
      aria-owns="combobox-menu-1"
      tabindex="-1"
      data-disabled="false"
      data-state="none"
    >
      <div>
        <input
          aria-label="Choose a fruit"
          aria-autocomplete="list"
          aria-controls="combobox-menu-1"
          aria-labelledby="combobox-label-1"
          id="combobox-input-1"
          placeholder="Select fruit"
          value=""
        />
      </div>
      <svg aria-label="Caret Down Icon">...</svg>
    </div>
  </div>
</div>

Properties

Prop	Type	Description	Default
children	<ComboboxOption>, <ComboboxGroup>	Define the Combobox Options by passing children
multiselect	boolean	Defines whether a user can select multiple options, or only a single option. When using TypeScript, multiselect affects the valid values of initialValue, value, and onChange	false
initialValue	Array<string>, string	The initial selection. Must be a string (or array of strings) that matches the value prop of a ComboboxOption. Changing the initialValue after initial render will not change the selection.
value	Array<string>, string	The controlled value of the Combobox. Must be a string (or array of strings) that matches the value prop of a ComboboxOption. Changing value after initial render will affect the selection. value will always take precedence over initialValue if both are provided.
onChange	(Array<string>) => void, (string) => void	A callback called when the selection changes. Callback recieves a single argument that is the new selection, either string, or string array
overflow	'expand-y', 'expand-x', 'scroll-x'	Defines the overflow behavior of a multiselect combobox. expand-y: Combobox has fixed width, and additional selections will cause the element to grow in the block direction. expand-x: Combobox has fixed height, and additional selections will cause the elemenet to grow in the inline direction. scroll-x: Combobox has fixed height and width, and additional selections will cause the element to be scrollable in the x (horizontal) direction.	'expand-y'
label	string	An accessible label for the input, rendered in a <label> to the DOM
aria-label	string	An accessible label for the input, used only for screen-readers
description	React.ReactNode	A description for the input
placeholder	string	A placeholder for the input element. Uses the native placeholder attribute.	'Select'
disabled	boolean	Disables all interaction with the component	false
size	'default'	Defines the visual size of the component	'default'
darkMode	boolean	Toggles dark mode	false
state	'error', 'none'	The error state of the component. Defines whether the error message is displayed.	'none'
errorMessage	string	The message shown below the input when state is error
onFilter	(value: string) => void	A callback called when the search input changes. Recieves a single argument that is the current input value. Use this callback to set searchState and/or filteredOptions appropriately
searchState	'unset', 'error', 'loading'	The state of search results. Toggles search messages within the menu.	'unset'
searchErrorMessage	string	A message shown within the menu when searchState is error	'Could not get results!'
searchLoadingMessage	string	A message shown within the menu when searchState is loading	'Loading results...'
searchEmptyMessage	string	A message shown within the menu when there are no options passed in as children, or filteredOptions is an empty array	'No results found'
clearable	boolean	Defines whether the Clear button appears to the right of the input
onClear	(e: MouseEvent) => void	A callback fired when the Clear button is pressed. Fired after onChange, and before onFilter
filteredOptions	Array<string>, null	An array used to define which options are displayed. Do not remove Options from the JSX children, as this will affect the selected options
chipTruncationLocation	'start', 'middle', 'end', 'none'	Defines where the ellipses appear in a Chip when the length exceeds the chipCharacterLimit	'none'
chipCharacterLimit	number	Defined the character limit of a multiselect Chip before they start truncating. Note: the three ellipses dots are included in the character limit.	12
className	string	The className passed to the root element of the component.
usePortal	boolean	Will position Popover's children relative to its parent without using a Portal, if usePortal is set to false. NOTE: The parent element should be CSS position relative, fixed, or absolute if using this option.	true
portalContainer	HTMLElement | null	Sets the container used for the popover's portal.
scrollContainer	HTMLElement | null	If the popover portal has a scrollable ancestor other than the window, this prop allows passing a reference to that element to allow the portal to position properly.
portalClassName	string	Passes the given className to the popover's portal container if the default portal container is being used.
popoverZIndex	number	Sets the z-index CSS property for the popover.

ComboboxOption

Props

Prop	Type	Description	Default
value	string	The internal value of the option. Used as the identifier in Combobox initialValue, value and filteredOptions. When undefined, this is set to _.kebabCase(displayName)
displayName	string	The display value of the option. Used as the rendered string within the menu and chips. When undefined, this is set to value
glyph	<Icon/>	The icon to display to the left of the option in the menu.
className	string	The className passed to the root element of the component.
description	string	Optional descriptive text under the displayName.
onClick	(event: React.SyntheticEvent<HTMLLIElement, Event>, value: string) => void	Callback fired when an option is clicked. Returns the event and the option value.

ComboboxGroup

Props

Prop	Type	Description	Default
label	string	Label for the group of options
children	<ComboboxOption>	Options in the group
className	string	The className passed to the root element of the component.