React Smart Select

A small, responsive and highly configurable React form control. react-smart-select allows you to create single-select, multi-select and toggle-select controls, where the first item in the list can select and unselect the whole list.

* Features
* Examples
* Installation and usage
* Styling
* Props

Features

- Single and Multi select modes
- "Toggle" mode
- Responsive
- Custom label and option rendering
- Highly configurable styles
- Beautiful default styles
- Accessible WAI ARIA compliance
- Powered by Floating-UI and styled-components

Examples

If you want to run a demo of react-smart-select just clone the repository and run npm run start or yarn start (it will automatically install all the dependencies).

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A classic, single-select dropdown.

!single-gif

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A classic, multi-select dropdown, with checkboxes to show the selected options.

!multi-gif

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A more complex multi-select dropdown, where the first option is a "select / deselect all" switch.

!toggle-gif

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With little effort it's possible to achieve advanced features like groups of options, where each group has a header that can select and deselect the whole group. You can find the code for this control in the demo app!

!group-gif

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This control just shows some of the style configurability achievable with react-smart-select.

!fancy-gif

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On small screens react-smart-select switches to a responsive layout.

!responsive-gif

Installation and usage

Install the library and its peer dependencies:

npm install --save-dev react-smart-select styled-components @floating-ui/react-dom

or:

yarn add --dev react-smart-select styled-components @floating-ui/react-dom

Example usage:

``jsx
import SmartSelect from 'react-smart-select';
import React, { useState } from 'react';

const options = [
{ label: 'alice', value: 'alice' },
{ label: 'bob', value: 'bob' },
{ label: 'carol', value: 'carol' },
{ label: 'dave', value: 'dave' }
];

export default function Form() {
const [ value, onChange ] = useState();

return (
onChange={onChange} />
);
}
`

The onChange callback receives three arguments:

`js
function onChange(value, selected, options) {
...
}
`

* value: the current option (for single-select controls) or the array of currently selected
options (for multi-select and toggle-select controls).
* selected: the option the user just clicked.
* options: the list of the select's options.

Styling

There are different ways to customize the appearance of react-smart-select.

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The simplest one is through the usual style props, which defines the style of the main component. Styles can also be applied to the various components through additional props:

- labelStyle
- dropdownStyle
- optionStyle

For example:

`jsx
const style = {
backgroundColor: '#33336a',
color: '#efe8de',
borderRadius: '12px'
};

const optionStyle = {
padding: '4px'
};

return (
style={style} optionStyle={optionStyle}
onChange={onChange} />
);

`

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Another way to change the component's appearance is through stylesheets. react-smart-select define the smart-select class, plus any additional ones you pass with the className prop. It also defines other classes on its main elements:

* rss-label
* rss-dropdown
* rss-option

Defining your own styles allows you to style pseudo-elements too, which is not possibile using React's style props. For example:

`css
.smart-select {
font-family: 'Times New Roman', Time, serif;
}

.smart-select .rss-dropdown .rss-option:hover {
background-color: #dac281;
color: #efe8de;
}
`

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react-smart-select uses styled-components for its styles, so you can use its API to wrap the component with your own styles.

Remember to declare your wrapped component outside any render method, as explained by styled-component's FAQ


`jsx
import SmartSelect from 'react-smart-select';
import styled from 'styled-components';
import React, { useState } from 'react';

const Styled = styled(SmartSelect)
font-family: 'Times New Roman', Time, serif;

.rss-dropdown .rss-option:hover {
background-color: #dac281;
color: #efe8de;
}
;

export default function StyledComponent() {
const [ value, onChange ] = useState();

return (
onChange={onChange} />
);
}
`

Props

Props you may want to specify include:

- onChange: subscribe to change events
- options: specify the options the user can select from
- value: control the current option (i.e. the corresponding entry in the options array)
- placeholder: the placeholder value when no options are selected
- className: optional class name for the component
- style: optional style for the component
- labelStyle: optional style for the control label
- dropdownStyle: optional style for the dropdown box
- optionStyle: optional style for each dropdown menu item
- formatLabel: a function invoked to get the label content. Can return a string or a React component
- formatOption: a function invoked to get each option content. Can return a string or a React component
- disabled: disable the control
- multi: enable the multi-select mode
- toggle: enable the toggle-select mode.

Callbacks

You can control not only the component style, but its content too. You can pass the formatLabel and formatOptions callbacks to control what will be printed in each element. These callbacks can return a string or a React component.

The formatLabel function is called to format the content of the select's label. It is passed the current value and all the control's options. For single-select controls, value is either the current selected value or null if nothing is selected, while for multi-select controls it's the array of currently selected values or an empty array if nothing is selected.

Please note that if you specify this callbacks the placeholder prop will be ignored, as it is now your responsibility to render the correct label when value is null or an empty array.

`js
function formatLabel(value, options) {
if (value === null) {
return 'nothing selected';
}

return value.label;
}
`

The formatOptions function is called to format the content of each option. It is passed the option being rendered and a boolean indicating if it is currently selected or not.

`js
function formatOption(option, selected) {
if (selected === true) {
return (
{option.label}
);
}

return option.label;
}
``

Licence

MIT