honeycombio/react-select

Name: react-select

Owner: Honeycomb

Description: A Select control built with and for React JS

Created: 2016-03-15 21:29:47.0

Updated: 2018-04-14 07:11:17.0

Pushed: 2018-04-14 07:11:13.0

Homepage: http://jedwatson.github.io/react-select/

Size: 8588

Language: JavaScript

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README

NPM Build Status (fork published on npm under react-select-allow-create)

React-Select

A Select control built with and for React. Initially built for use in KeystoneJS.

Why does this Honeycomb fork exist?

Because at the time, certain behaviors were required and behaved strangely in the upstream version.

These behaviors seem like they've been addressed by the upstream version (as of 2018/04/14):

These still seems like issues (aka, blindly s/react-select-allow-create/react-select/ in our repo causes these issues):

  • the query builder behavior gets a little funky. e.g. try to type count in the calculate field and see that each character typed replaces the prior one (via @eanakashima)

Still to be verified:

New version 1.0.0-rc

I've nearly completed a major rewrite of this component (see issue #568 for details and progress). The new code has been merged into master, and react-select@1.0.0-rc has been published to npm and bower.

1.0.0 has some breaking changes. The documentation is still being updated for the new API; notes on the changes can be found in CHANGES.md and will be finalised into HISTORY.md soon.

Testing, feedback and PRs for the new version are appreciated.

Demo & Examples

Live demo: jedwatson.github.io/react-select

The live demo is still running v0.9.1.

To build the new 1.0.0 examples locally, clone this repo then run:

install
start

Then open localhost:8000 in a browser.

Installation

The easiest way to use React-Select is to install it from NPM and include it in your own React build process (using Browserify, etc).

install react-select --save

At this point you can import react-select and its styles in your application as follows:

rt Select from 'react-select';

e sure to include styles at some point, probably during your bootstrapping
rt 'react-select/dist/react-select.css';

You can also use the standalone build by including react-select.js and react-select.css in your page. (If you do this though you'll also need to include the dependencies.)

Usage

React-Select generates a hidden text field containing the selected value, so you can submit it as part of a standard form. You can also listen for changes with the onChange event property.

Options should be provided as an Array of Objects, each with a value and label property for rendering and searching. You can use a disabled property to indicate whether the option is disabled or not.

The value property of each option should be set to either a string or a number.

When the value is changed, onChange(selectedValueOrValues) will fire.

Select = require('react-select');

options = [
{ value: 'one', label: 'One' },
{ value: 'two', label: 'Two' }


tion logChange(val) {
console.log("Selected: " + val);


ect
name="form-field-name"
value="one"
options={options}
onChange={logChange}

Multiselect options

You can enable multi-value selection by setting multi={true}. In this mode:

Async options

If you want to load options asynchronously, instead of providing an options Array, provide a loadOptions Function.

The function takes two arguments String input, Function callbackand will be called when the input text is changed.

When your async process finishes getting the options, pass them to callback(err, data) in a Object { options: [] }.

The select control will intelligently cache options for input strings that have already been fetched. The cached result set will be filtered as more specific searches are input, so if your async process would only return a smaller set of results for a more specific query, also pass complete: true in the callback object. Caching can be disabled by setting cache to false (Note that complete: true will then have no effect).

Unless you specify the property autoload={false} the control will automatically load the default set of options (i.e. for input: '') when it is mounted.

Select = require('react-select');

getOptions = function(input, callback) {
setTimeout(function() {
    callback(null, {
        options: [
            { value: 'one', label: 'One' },
            { value: 'two', label: 'Two' }
        ],
        // CAREFUL! Only set this to true when there are no more options,
        // or more specific queries will not be sent to the server.
        complete: true
    });
}, 500);


ect.Async
name="form-field-name"
loadOptions={getOptions}

Async options with Promises

loadOptions supports Promises, which can be used in very much the same way as callbacks.

Everything that applies to loadOptions with callbacks still applies to the Promises approach (e.g. caching, autoload, …)

An example using the fetch API and ES6 syntax, with an API that returns an object like:

rt Select from 'react-select';


ssuming the API returns something like this:
 const json = [
   { value: 'one', label: 'One' },
   { value: 'two', label: 'Two' }
 ]


t getOptions = (input) => {
turn fetch(`/users/${input}.json`)
.then((response) => {
  return response.json();
}).then((json) => {
  return { options: json };
});


ect.Async
name="form-field-name"
value="one"
loadOptions={getOptions}

Async options loaded externally

If you want to load options asynchronously externally from the Select component, you can have the Select component show a loading spinner by passing in the isLoading prop set to true.

Select = require('react-select');

isLoadingExternally = true;

ect
me="form-field-name"
isLoading={isLoadingExternally}
...

User-created tags

The Creatable component enables users to create new tags within react-select. It decorates a Select and so it supports all of the default properties (eg single/multi mode, filtering, etc) in addition to a couple of custom ones (shown below). The easiest way to use it is like so:

rt { Creatable } from 'react-select';

tion render (selectProps) {
turn <Creatable {...selectProps} />;

Creatable properties

Property | Type | Description :—|:—|:— children | function | Child function responsible for creating the inner Select component. This component can be used to compose HOCs (eg Creatable and Async). Expected signature: (props: Object): PropTypes.element | isOptionUnique | function | Searches for any matching option within the set of options. This function prevents duplicate options from being created. By default this is a basic, case-sensitive comparison of label and value. Expected signature: ({ option: Object, options: Array, labelKey: string, valueKey: string }): boolean | isValidNewOption | function | Determines if the current input text represents a valid option. By default any non-empty string will be considered valid. Expected signature: ({ label: string }): boolean | newOptionCreator | function | Factory to create new option. Expected signature: ({ label: string, labelKey: string, valueKey: string }): Object | shouldKeyDownEventCreateNewOption | function | Decides if a keyDown event (eg its keyCode) should result in the creation of a new option. ENTER, TAB and comma keys create new options by default. Expected signature: ({ keyCode: number }): boolean | promptTextCreator | function | Factory for overriding default option creator prompt label. By default it will read 'Create option “{label}“'. Expected signature: (label: String): String |

Combining Async and Creatable

Use the AsyncCreatable HOC if you want both async and creatable functionality. It ties Async and Creatable components together and supports a union of their properties (listed above). Use it as follows:

rt React from 'react';
rt { AsyncCreatable } from 'react-select';

tion render (props) {
 props can be a mix of Async, Creatable, and Select properties
turn (
<AsyncCreatable {...props} />


Filtering options

You can control how options are filtered with the following properties:

matchProp and matchPos both default to "any". ignoreCase defaults to true.

Advanced filters

You can also completely replace the method used to filter either a single option, or the entire options array (allowing custom sort mechanisms, etc.)

For multi-select inputs, when providing a custom filterOptions method, remember to exclude current values from the returned array of options.

Filtering large lists

The default filterOptions method scans the options array for matches each time the filter text changes. This works well but can get slow as the options array grows to several hundred objects. For larger options lists a custom filter function like react-select-fast-filter-options will produce better results.

Effeciently rendering large lists with windowing

The menuRenderer property can be used to override the default drop-down list of options. This should be done when the list is large (hundreds or thousands of items) for faster rendering. Windowing libraries like react-virtualized can then be used to more efficiently render the drop-down menu like so. The easiest way to do this is with the react-virtualized-select HOC. This component decorates a Select and uses the react-virtualized VirtualScroll component to render options. Demo and documentation for this component are available here.

You can also specify your own custom renderer. The custom menuRenderer property accepts the following named parameters:

| Parameter | Type | Description | |:—|:—|:—| | focusedOption | Object | The currently focused option; should be visible in the menu by default. | | focusOption | Function | Callback to focus a new option; receives the option as a parameter. | | labelKey | String | Option labels are accessible with this string key. | | optionClassName | String | The className that gets used for options | | optionComponent | ReactClass | The react component that gets used for rendering an option | | optionRenderer | Function | The function that gets used to render the content of an option | | options | Array<Object> | Ordered array of options to render. | | selectValue | Function | Callback to select a new option; receives the option as a parameter. | | valueArray | Array<Object> | Array of currently selected options. |

Updating input values with onInputChange

You can manipulate the input using the onInputChange and returning a new value.

tion cleanInput(inputValue) {
  // Strip all non-number characters from the input
return inputValue.replace(/[^0-9]/g, "");


ect
name="form-field-name"
onInputChange={cleanInput}

Overriding default key-down behavior with onInputKeyDown

Select listens to keyDown events to select items, navigate drop-down list via arrow keys, etc. You can extend or override this behavior by providing a onInputKeyDown callback.

tion onInputKeyDown(event) {
switch (event.keyCode) {
    case 9:   // TAB
        // Extend default TAB behavior by doing something here
        break;
    case 13: // ENTER
        // Override default ENTER behavior by doing stuff here and then preventing default
        event.preventDefault();
        break;
}


ect
{...otherProps}
onInputKeyDown={onInputKeyDown}

Further options
Property    |   Type        |   Default     |   Description

:———————–|:————–|:————–|:——————————–

addLabelText    |   string  |   'Add "{label}"?'    |   text to display when `allowCreate` is true

arrowRenderer | func | undefined | Renders a custom drop-down arrow to be shown in the right-hand side of the select: arrowRenderer({ onMouseDown })

autoBlur    |   bool | false | Blurs the input element after a selection has been made. Handy for lowering the keyboard on mobile devices
autofocus       |       bool    |      undefined        |  autofocus the component on mount
autoload    |   bool    |   true        |   whether to auto-load the default async options set
autosize  | bool | true  | If enabled, the input will expand as the length of its value increases
backspaceRemoves    |   bool    |   true    |   whether pressing backspace removes the last item when there is no input value
backspaceToRemoveMessage    |   string  |   'Press backspace to remove {last label}'    |   prompt shown in input when at least one option in a multiselect is shown, set to '' to clear
cache   |   bool    |   true    |   enables the options cache for `asyncOptions` (default: `true`)
className   |   string  |   undefined   |   className for the outer element
clearable   |   bool    |   true        |   should it be possible to reset value
clearAllText    |   string  |   'Clear all' |   title for the "clear" control when `multi` is true
clearValueText  |   string  |   'Clear value'   |   title for the "clear" control
resetValue  |   any |   null    |   value to use when you clear the control
delimiter   |   string  |   ','     |   delimiter to use to join multiple values
disabled    |   bool    |   false       |   whether the Select is disabled or not
filterOption    |   func    |   undefined   |   method to filter a single option: `function(option, filterString)`
filterOptions   |   func    |   undefined   |   method to filter the options array: `function([options], filterString, [values])`
ignoreCase  |   bool    |   true        |   whether to perform case-insensitive filtering
inputProps  |   object  |   {}      |   custom attributes for the Input (in the Select-control) e.g: `{'data-foo': 'bar'}`
isLoading   |   bool    |   false       |   whether the Select is loading externally or not (such as options being loaded)
joinValues  |   bool    |   false       |   join multiple values into a single hidden input using the `delimiter`
labelKey    |   string  |   'label'     |   the option property to use for the label
loadOptions |   func    |   undefined   |   function that returns a promise or calls a callback with the options: `function(input, [callback])`
matchPos    |   string  |   'any'       |   (any, start) match the start or entire string when filtering
matchProp   |   string  |   'any'       |   (any, label, value) which option property to filter on
menuBuffer  |   number  |   0       |   buffer of px between the base of the dropdown and the viewport to shift if menu doesnt fit in viewport
menuRenderer | func | undefined | Renders a custom menu with options; accepts the following named parameters: `menuRenderer({ focusedOption, focusOption, options, selectValue, valueArray })`
multi       |   bool    |   undefined   |   multi-value input
name        |   string  |   undefined   |   field name, for hidden `<input />` tag
noResultsText   |   string  |   'No results found'  |   placeholder displayed when there are no matching search results or a falsy value to hide it
onBlur      |   func    |   undefined   |   onBlur handler: `function(event) {}`
onBlurResetsInput   |   bool    |   true    |   whether to clear input on blur or not
onChange    |   func    |   undefined   |   onChange handler: `function(newValue) {}`
onClose     |   func    |   undefined   |   handler for when the menu closes: `function () {}`
onCloseResetsInput | bool  | true  | whether to clear input when closing the menu through the arrow
onFocus     |   func    |   undefined   |   onFocus handler: `function(event) {}`
onInputChange   |   func    |   undefined   |   onInputChange handler: `function(inputValue) {}`
onInputKeyDown  |   func    |   undefined   |   input keyDown handler; call `event.preventDefault()` to override default `Select` behavior: `function(event) {}`
onOpen      |   func    |   undefined   |   handler for when the menu opens: `function () {}`
onValueClick    |   func    |   undefined   |   onClick handler for value labels: `function (value, event) {}`
openOnFocus | bool | false | open the options menu when the input gets focus (requires searchable = true)
optionRenderer  |   func    |   undefined   |   function which returns a custom way to render the options in the menu
options     |   array   |   undefined   |   array of options
placeholder     |   string\|node    |   'Select ...'    |   field placeholder, displayed when there's no value
scrollMenuIntoView |    bool    |   true        |   whether the viewport will shift to display the entire menu when engaged
searchable  |   bool    |   true        |   whether to enable searching feature or not
searchPromptText |  string\|node    |   'Type to search'    |   label to prompt for search input
tabSelectsValue |   bool    |   true    |   whether to select the currently focused value when the `[tab]` key is pressed
value       |   any |   undefined   |   initial field value
valueKey    |   string  |   'value'     |   the option property to use for the value
valueRenderer   |   func    |   undefined   |   function which returns a custom way to render the value selected `function (option) {}`
Methods

Right now there's simply a focus() method that gives the control focus. All other methods on <Select> elements should be considered private and prone to change.

ocuses the input element
tance>.focus();

Contributing

See our CONTRIBUTING.md for information on how to contribute.

Thanks to the projects this was inspired by: Selectize (in terms of behaviour and user experience), React-Autocomplete (as a quality React Combobox implementation), as well as other select controls including Chosen and Select2.

License

MIT Licensed. Copyright (c) Jed Watson 2016.


This work is supported by the National Institutes of Health's National Center for Advancing Translational Sciences, Grant Number U24TR002306. This work is solely the responsibility of the creators and does not necessarily represent the official views of the National Institutes of Health.