react-nested-dropdown

react-nested-dropdown

A simple and customizable nested dropdown component for React.

Features

• Custom trigger element
• Dropdown item with submenu
• Multi level submenu support
• Specific props to each dropdown item
• Auto positioning of dropdown menu
• Written in TypeScript 🤙

Installation

# using npm
npm install react-nested-dropdown
# using pnpm
pnpm install react-nested-dropdown
# using yarn
yarn add react-nested-dropdown

Basic usage

import React from 'react';

import { Dropdown } from 'react-nested-dropdown';
import 'react-nested-dropdown/dist/styles.css';

const items = [
  {
    label: 'Option 1',
    onSelect: () => console.log('Option 1 selected'),
  },
  {
    label: 'Option 2',
    items: [
      {
        label: 'Option 2.1',
        onSelect: () => console.log('Option 2.1 selected'),
      },
      {
        label: 'Option 2.2',
        onSelect: () => console.log('Option 2.2 selected'),
      },
    ],
  },
];

export const App = () => {
  return (
    <Dropdown items={items} containerWidth="300px">
      {({ isOpen, onClick }) => (
        <button type="button" onClick={onClick}>
          {isOpen ? 'Close dropdown' : 'Open dropdown'}
        </button>
      )}
    </Dropdown>
  );
};

Dropdown props

Prop	Type	Default	Description
items	DropdownItem[]	[]	An array of dropdown items to render in the menu.
containerWidth	number or string	300	The width of the dropdown menu container. Can be a number for pixels or a string for any valid CSS width value.
onSelect	(value: any, option: DropdownItem) => void	null	A callback function that is called when an option is selected. It is passed the value of the selected option and the option object itself.
children	(params: { onClick: () => void, isOpen: boolean }) => React.ReactElement	null	A function that returns a React element to be used as the trigger for the dropdown menu. The function is passed an object with an onClick function to open and close the dropdown, and an isOpen boolean to indicate the current open state of the dropdown.
className	string	null	A custom class name to be applied to the root element of the component.
renderOption	(option: DropdownItem) => React.ReactElement	null	A function that returns a React element for rendering each option in the dropdown menu. It is passed the option object for the current item.
closeOnScroll	boolean	true	If set to true, the dropdown menu will close when the page is scrolled.

DropdownItem interface

Prop	Type	Default	Description
label	string	''	The label to display for the item.
iconBefore	React.ReactNode	null	An optional icon to display before the label.
iconAfter	React.ReactNode	null	An optional icon to display after the label.
items	DropdownItem[]	null	An optional array of nested items to create a submenu.
itemsContainerWidth	number or string	150	The width of the sub items menu container. Can be a number for pixels or a string for any valid CSS width value.
value	any	undefined	An optional value for the item. This value will be in Dropdown's callback onSelect as first argument.
onSelect	() => void	null	An optional callback function to be called when the item is selected.
disabled	boolean	false	Whether the item should be disabled and unable to be selected.
className	string	null	An optional class name to be applied to the item element.