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https://github.com/fmoo/react-typeahead

Pure react-based typeahead and typeahead-tokenizer
https://github.com/fmoo/react-typeahead

Last synced: 3 months ago
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Pure react-based typeahead and typeahead-tokenizer

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# react-typeahead



> A typeahead/autocomplete component for React



react-typeahead is a javascript library that provides a react-based

typeahead, or autocomplete text entry, as well as a "typeahead tokenizer",

a typeahead that allows you to select multiple results.



## Usage



For a typeahead input:



```javascript

var Typeahead = require('react-typeahead').Typeahead;

React.render(

  

);

```



For a tokenizer typeahead input:



```javascript

var Tokenizer = require('react-typeahead').Tokenizer;

React.render(

  

);

```



## Examples



* [Basic Typeahead with Topcoat][1]

* [Typeahead Tokenizer with Topcoat][2]

* [Typeahead Tokenizer with simple styling][3]



![](https://i.cloudup.com/CeLPJjWvFK.gif)



[1]: http://wookiehangover.github.com/react-typeahead/examples/typeahead-topcoat.html

[2]: http://wookiehangover.github.com/react-typeahead/examples/tokenizer-topcoat.html

[3]: http://wookiehangover.github.com/react-typeahead/examples/TypeaheadTokenizer-simple.html

[4]: http://blog.npmjs.org/post/85484771375/how-to-install-npm



## API



### Typeahead(props)



Type: React Component



Basic typeahead input and results list.



#### props.options



Type: `Array`

Default: []



An array supplied to the filtering function. Can be a list of strings or a list of arbitrary objects. In the latter case, `filterOption` and `displayOption` should be provided.



#### props.defaultValue



Type: `String`



A default value used when the component has no value. If it matches any options a option list will show.



#### props.value



Type: `String`



Specify a value for the text input.



#### props.maxVisible



Type: `Number`



Limit the number of options rendered in the results list.



#### props.resultsTruncatedMessage



Type: `String`



If `maxVisible` is set, display this custom message at the bottom of the list of results when the result are truncated.



#### props.customClasses



Type: `Object`

Allowed Keys: `input`, `results`, `listItem`, `listAnchor`, `hover`, `typeahead`, `resultsTruncated`



An object containing custom class names for child elements. Useful for

integrating with 3rd party UI kits.



#### props.placeholder



Type: `String`



Placeholder text for the typeahead input.



#### props.disabled



Type: `Boolean`



Set to `true` to add disable attribute in the `` or `` element



#### props.textarea



Type: `Boolean`



Set to `true` to use a `` element rather than an `` element



#### props.inputProps



Type: `Object`



Props to pass directly to the `` element.



#### props.onKeyDown



Type: `Function`



Event handler for the `keyDown` event on the typeahead input.



#### props.onKeyPress



Type: `Function`



Event handler for the `keyPress` event on the typeahead input.



#### props.onKeyUp



Type: `Function`



Event handler for the `keyUp` event on the typeahead input.



#### props.onBlur



Type: `Function`



Event handler for the `blur` event on the typeahead input.



#### props.onFocus



Type: `Function`



Event handler for the `focus` event on the typeahead input.



#### props.onOptionSelected



Type: `Function`



Event handler triggered whenever a user picks an option.



#### props.filterOption



Type: `String` or `Function`



A function to filter the provided `options` based on the current input value. For each option, receives `(inputValue, option)`. If not supplied, defaults to [fuzzy string matching](https://github.com/mattyork/fuzzy).



If provided as a string, it will interpret it as a field name and fuzzy filter on that field of each option object.



#### props.displayOption



Type: `String` or `Function`



A function to map an option onto a string for display in the list. Receives `(option, index)` where index is relative to the results list, not all the options. Must return a string.



If provided as a string, it will interpret it as a field name and use that field from each option object.



#### props.formInputOption



Type: `String` or `Function`



A function to map an option onto a string to include in HTML forms (see `props.name`). Receives `(option)` as arguments. Must return a string.



If specified as a string, it will interpret it as a field name and use that field from each option object.



If not specified, it will fall back onto the semantics described in `props.displayOption`.



This option is ignored if you don't specify the `name` prop. It is required if you both specify the `name` prop and are using non-string options. It is optional otherwise.



#### props.defaultClassNames



Type: `boolean`

Default: true



If false, the default classNames are removed from the typeahead.



#### props.customListComponent



Type: `React Component`



A React Component that renders the list of typeahead results. This replaces the default list of results.



This component receives the following props :



##### Passed through



- `props.displayOptions`

- `props.customClasses`

- `props.onOptionSelected`



##### Created or modified

- `props.options`

  - This is the Typeahead's `props.options` filtered and limited to `Typeahead.props.maxVisible`.

- `props.selectionIndex`

  - The index of the highlighted option for rendering



#### props.showOptionsWhenEmpty



Type: `boolean`

Default: false



If true, options will still be rendered when there is no value.



#### props.allowCustomValues



Type: `boolean`



If true, custom tags can be added without a matching typeahead selection



### Typeahead ([Exposed Component Functions][reactecf])



#### typeahead.focus



Focuses the typeahead input.



---



### Tokenizer(props)



Type: React Component



Typeahead component that allows for multiple options to be selected.



#### props.options



Type: `Array`

Default: []



An array supplied to the filter function.



#### props.maxVisible



Type: `Number`



Limit the number of options rendered in the results list.



#### props.resultsTruncatedMessage



Type: `String`



If `maxVisible` is set, display this custom message at the bottom of the list of results when the result are truncated.



#### props.name



Type: `String`



The name for HTML forms to be used for submitting the tokens' values array.



#### props.customClasses



Type: `Object`

Allowed Keys: `input`, `results`, `listItem`, `listAnchor`, `hover`, `typeahead`, `resultsTruncated`, `token`



An object containing custom class names for child elements. Useful for

integrating with 3rd party UI kits.



#### props.placeholder



Type: `String`



Placeholder text for the typeahead input.



#### props.disabled



Type: `Boolean`



Set to `true` to add disable attribute in the `` or `` element



#### props.inputProps



Type: `Object`



Props to pass directly to the `` element.



#### props.onKeyDown



Type: `Function`



Event handler for the `keyDown` event on the typeahead input.



#### props.onKeyPress



Type: `Function`



Event handler for the `keyPress` event on the typeahead input.



#### props.onKeyUp



Type: `Function`



Event handler for the `keyUp` event on the typeahead input.



#### props.onBlur



Type: `Function`



Event handler for the `blur` event on the typeahead input.



#### props.onFocus



Type: `Function`



Event handler for the `focus` event on the typeahead input.



#### props.defaultSelected



Type: `Array`



A set of values of tokens to be loaded on first render.



#### props.onTokenRemove



Type: `Function`

Params: `(removedToken)`



Event handler triggered whenever a token is removed.



#### props.onTokenAdd



Type: `Function`

Params: `(addedToken)`



Event handler triggered whenever a token is added.



#### props.displayOption



Type: `String` or `Function`



A function to map an option onto a string for display in the list. Receives `(option, index)` where index is relative to the results list, not all the options. Can either return a string or a React component.



If provided as a string, it will interpret it as a field name and use that field from each option object.



#### props.filterOption



Type: `String` or `Function`



A function to filter the provided `options` based on the current input value. For each option, receives `(inputValue, option)`. If not supplied, defaults to [fuzzy string matching](https://github.com/mattyork/fuzzy).



If provided as a string, it will interpret it as a field name and use that field from each option object.



#### props.searchOptions



Type: `Function`



A function to filter, map, and/or sort the provided `options` based on the current input value.

Receives `(inputValue, options)`.

If not supplied, defaults to [fuzzy string matching](https://github.com/mattyork/fuzzy).



Note: the function can be used to store other information besides the string in the internal state of the component.

Make sure to use the `displayOption`, `inputDisplayOption`, and `formInputOption` props to extract/generate the correct format of data that each expects if you do this.



#### props.inputDisplayOption



Type: `String` or `Function`



A function that maps the internal state of the visible options into the value stored in the text value field of the visible input when an option is selected.



Receives `(option)`.



If provided as a string, it will interpret it as a field name and use that field from each option object.



If no value is set, the input will be set using `displayOption` when an option is selected.



#### props.formInputOption



Type: `String` or `Function`



A function to map an option onto a string to include in HTML forms as a hidden field (see `props.name`). Receives `(option)` as arguments. Must return a string.



If specified as a string, it will interpret it as a field name and use that field from each option object.



If not specified, it will fall back onto the semantics described in `props.displayOption`.



#### props.defaultClassNames



Type: `boolean`

Default: true



If false, the default classNames are removed from the tokenizer and the typeahead.



#### props.showOptionsWhenEmpty



Type: `boolean`

Default: false



If true, options will still be rendered when there is no value.



### Tokenizer ([Exposed Component Functions][reactecf])



#### tokenizer.focus



Focuses the tokenizer input.



#### tokenizer.getSelectedTokens



Type: `Function`



A function to return the currently selected tokens.



## Developing



### Setting Up



You will need `npm` to develop on react-typeahead.  [Installing npm][4].



Once that's done, to get started, run `npm install` in your checkout directory.

This will install all the local development dependences, such as `gulp` and `mocha`



### Testing



react-typeahead uses mocha for unit tests and gulp for running them.  Large changes should

include unittests.



After updating or creating new tests, run `npm run-script build-test` to regenerate the

test package.



Once that's done, running the tests is easy with `gulp`:



```

> gulp test

[00:17:25] Using gulpfile ~/src/react-typeahead/gulpfile.js

[00:17:25] Starting 'test'...



  ․․․․․․․․․․․․․․․



  15 passing (43ms)



[00:17:25] Finished 'test' after 448 ms

[00:17:25] Starting 'default'...

[00:17:25] Finished 'default' after 6.23 μs

```



### Contributing



Basically, fork the repository and send a pull request.  It can be difficult to review these, so

here are some general rules to follow for getting your PR accepted more quickly:



- All new properties and exposed component function should be documented in the README.md

- Break your changes into smaller, easy to understand commits.

- Send separate PRs for each commit when possible.

- Feel free to rebase, merge, and rewrite commits to make them more readible.

- Add comments explaining anything that's not painfully obvious.

- Add unittests for your change if possible.



[reactecf]: https://facebook.github.io/react/tips/expose-component-functions.html