React Typeahead2

React Typeahead2 component like an Twitter typeahead

Storybook demo link

• Like twitter Typeahead control

About Component

Used

• styled-components for embed css with React components
• jest, enzume, webpack for testing purposes
• React Storybook for developing control in browser with live demo

You can

• Manually show/hide spinner
• Manually show/hide empty option item
• Use onFetchData event for fetching data from server using value entered by user
• Limit count of triggering onFetchData event, using rateLimitBy, rateLimitWait, minLength

Component features

Keyboard keys:

• Esc - for hide expanded list of items
• ArrowUp, ArrowDown - for navigate by list items.
• Enter - for selecting item from expanded list.
• Tab, End - for autocomplete item if hint displayed.

Properties

• optionTemplate - function template for render option item required
• displayKey - string name of field for displaying value after select option required
• emptyTemplate - function template for display empty option item optional
• loadingTemplate - function for displaying custom spinner template optional
• hint - bool value for enable/disable hint displaying optional (displayed only for LTR)
• minLength - int value for min value (if input value length >= minLength then trigger onFetchData event)
• showLoading - bool flag for show/hide spinner
• value - string value displaying in input element
• className - for additional classes for input
• options - list of option items (can be array of Objects or Immutable.List of Immutable.Record)
• rateLimitBy - string value of ['none', 'trottle', 'debounce'] for limit count onFetchData events
• rateLimitWait - int value used for trottle and debounce
• showEmpty - flag for show/hide empty option item. (displayed only if no items in options property)
• placeholder - string placeholder for displaying inside control

Events

• onChange - event handler which trigger when input value changed
• onFetchData - event handler which depends on rateLimitBy, rateLimitWait, minLength
• onBlur - event handler for standard blur event of input
• onOptionClick - event handler for handle choosing option from list
• onOptionChange - event handler like onOptionClick
• onClick - event handler for standard click on input element

Css classes

• .rtex-option-container - class for options list container
• .rtex-option-item - class for options item
• .rtex-hint - class for hint input element
• .rtex-input - class for input element

Example

Simple usage Example

import Typeahead from 'react-typeahead2';

const OptionTemplate = props => {
  const getStyles = (selected) => {
    if (selected) {
      return {textAlign: 'left', backgroundColor: 'blue', color: 'white'};
    }
    return {textAlign: 'left'};
  };
  return (<div style={getStyles(props.selected)}>{`Id: ${props.data.id} - Name: ${props.data.name}`}</div>);
};

// .... some code here
<div style={{width: '180px', margin: '0 auto'}}>
  <Typeahead
    value=""
    options={[{id:1, name:'name 1'}, {id:2, name: 'name 2'}]}
    displayKey="name"
    optionTemplate={OptionTemplate}
  />
</div>
// .... some code here

Bootstrap 3 styling example

.rtex-option-container {
    min-width: 160px;
    margin-top: 2px;
    padding: 5px 0;
    background-color: #fff;
    border: 1px solid #ebebeb;
    -webkit-background-clip: padding-box;
    -moz-background-clip: padding;
    background-clip: padding-box;
    width: 100%;
    overflow-y: auto;
    max-height: 250px;
}
 
.rtex-option-item {
  border-top: inherit;
}
 
.rtex-hint {
  background-color: white;
}
 
.rtex-input {
  position: relative;
  background-color: transparent;
  background-image: url(data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7);
}

Like Twitter typeahead styling example

.TwitterStylePage {
  background-color: #f2f9ff;
  font: normal normal normal 18px/1.2 "Helvetica Neue", Roboto, "Segoe UI", Calibri, sans-serif;
  color: #292f33;
}
 
.TwitterStylePage .rtex-hint, .TwitterStylePage .rtex-input {
  width: 100%;
  padding: 5px 8px;
  font-size: 24px;
  line-height: 30px;
  border: 1px solid #024e6a;
  -webkit-border-radius: 8px;
  -moz-border-radius: 8px;
  border-radius: 8px;
}
 
.TwitterStylePage .rtex-input {
  position: relative;
  background-color: transparent;
  background-image: url(data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7);
  outline: none;
}
 
.TwitterStylePage .rtex-container {
  position: relative;
  width: 500px;
  margin: 50px auto 0 auto;
  padding: 15px;
  text-align: left;
  background-color: #0097cf;
  background-image: -moz-linear-gradient(top, #04a2dd, #03739c);
  background-image: -webkit-gradient(linear, 0 0, 0 100%, from(#04a2dd), to(#03739c));
  background-image: -webkit-linear-gradient(top, #04a2dd, #03739c);
  background-image: -o-linear-gradient(top, #04a2dd, #03739c);
  background-image: linear-gradient(top, #04a2dd, #03739c);
  background-repeat: repeat-x;
  border: 1px solid #024e6a;
  -webkit-border-radius: 10px;
  -moz-border-radius: 10px;
  border-radius: 10px;
  -webkit-box-shadow: 0 0 2px #111;
  -moz-box-shadow: 0 0 2px #111;
  box-shadow: 0 0 2px #111;
}
 
.TwitterStylePage .rtex-container *,
.TwitterStylePage .rtex-container *::after,
.TwitterStylePage .rtex-container *::before {
  -moz-box-sizing: border-box;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}
 
.TwitterStylePage .rtex-option-container {
    position: absolute;
    top: 95%;
    left: 2.5%;
    z-index: 100;
    width: 95%;
    margin-bottom: 20px;
    overflow: hidden;
    background-color: #fff;
    -webkit-border-radius: 8px;
    -moz-border-radius: 8px;
    border-radius: 8px;
    box-shadow: 0px 0px 0px 1px green;
    -webkit-box-shadow: 0 5px 10px rgba(0,0,0,.2);
    -moz-box-shadow: 0 5px 10px rgba(0,0,0,.2);
    box-shadow: 0 5px 10px rgba(0,0,0,.2);
}
 
.TwitterStylePage .EmptyItem {
  position: relative;
  padding: 10px;
  font-size: 24px;
  line-height: 30px;
  text-align: center;
}

Contributing

• See CONTRIBUTING.md

License

• See LICENSE