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| import React from 'react'; | |
| import ReactDOM from 'react-dom'; | |
| import _ from 'lodash'; | |
| import './style.css'; | |
| const RATE_LIMIT = 500; | |
| class Autocomplete extends React.Component { | |
| constructor(props) { | |
| super(props); | |
| console.log('constructor', 'test'); | |
| this.onChange = this.onChange.bind(this); | |
| this.onItemClick = this.onItemClick.bind(this); | |
| this.onBlur = this.onBlur.bind(this); | |
| this.makeQuery = _.throttle(this.makeQuery, RATE_LIMIT); | |
| this.state = { | |
| isDropdownOpen: false, | |
| results: [], | |
| value: '', | |
| }; | |
| } | |
| makeQuery(query) { | |
| fetch(`https://mock-autocomplete.herokuapp.com/autocomplete?q=${query}`).then(data => { | |
| return data.json(); | |
| }).then(data => { | |
| this.setState({ results: data.data }); | |
| }); | |
| } | |
| onChange(event) { | |
| this.setState({ | |
| value: event.target.value, | |
| isDropdownOpen: true, | |
| }); | |
| this.makeQuery(event.target.value); | |
| } | |
| onItemClick(item) { | |
| this.setState({ | |
| value: item, | |
| results: [], | |
| }); | |
| } | |
| onBlur(event) { | |
| if (_.get(event, 'relatedTarget.id') !== 'dropdown') { | |
| this.setState({ | |
| isDropdownOpen: false | |
| }); | |
| } | |
| } | |
| render() { | |
| return ( | |
| <div className="autocomplete"> | |
| <form> | |
| <input type="text" id="search" onChange={this.onChange} value={this.state.value} onBlur={this.onBlur} /> | |
| </form> | |
| {this.state.isDropdownOpen && | |
| <div id="results"> | |
| <ul tabIndex="0" id="dropdown"> | |
| {_.map(this.state.results, result => ( | |
| <li key={result} onClick={() => this.onItemClick(result)} className="item"> | |
| {result} | |
| </li> | |
| ))} | |
| </ul> | |
| </div> | |
| } | |
| </div> | |
| ); | |
| } | |
| } | |
| ReactDOM.render(<Autocomplete />, document.getElementById('root')); |
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| h1, p { | |
| font-family: Lato; | |
| } | |
| ul { | |
| margin: 0; | |
| padding: 0; | |
| } | |
| .autocomplete { | |
| max-width: 500px; | |
| } | |
| .item { | |
| list-style-type: none; | |
| border: 1px solid gray; | |
| cursor: pointer; | |
| margin: 0; | |
| padding: 5px; | |
| } |
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