Created
November 4, 2020 17:15
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Search Component - Gatsby and Flex Search
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import React, { Component } from 'react' | |
import ReactSVG from 'react-svg' | |
import ResultItem from '@/components/Search/Result' | |
export default class Search extends Component { | |
constructor(props) { | |
super(props) | |
this.state = { | |
results: [], | |
isSearchbarVisible: false, | |
query: '', | |
} | |
this.handleInput = this.handleInput.bind(this) | |
this.handleClick = this.handleClick.bind(this) | |
this.handleClickOutside = this.handleClickOutside.bind(this) | |
} | |
componentDidMount() { | |
window.addEventListener('mousedown', this.handleClickOutside) | |
} | |
componentWillUnmount() { | |
window.removeEventListener('mousedown', this.handleClickOutside) | |
} | |
handleInput(e) { | |
let searchInput = e.target.value | |
if (searchInput.length > 0) { | |
const results = this.getSearchResults(searchInput) | |
this.setState({ results: results, query: searchInput }) | |
} else { | |
this.setState({ results: [], query: searchInput }) | |
} | |
} | |
handleClick() { | |
this.setState( | |
(state) => { | |
return { | |
isSearchbarVisible: !state.isSearchbarVisible, | |
} | |
}, | |
() => { | |
this.searchInput.focus() | |
}, | |
) | |
} | |
handleClickOutside(e) { | |
if (!this.node.contains(e.target)) { | |
this.setState({ | |
isSearchbarVisible: false, | |
query: '', | |
results: [], | |
}) | |
} | |
} | |
getSearchResults(query) { | |
var index = window.__FLEXSEARCH__.en.index | |
var store = window.__FLEXSEARCH__.en.store | |
if (!query || !index) { | |
return [] | |
} else { | |
var results = [] | |
Object.keys(index).forEach((idx) => { | |
results.push(...index[idx].values.search(query)) | |
}) | |
results = Array.from(new Set(results)) | |
var nodes = store | |
.filter((node) => (results.includes(node.id) ? node : null)) | |
.map((node) => node.node) | |
return nodes | |
} | |
} | |
render() { | |
return ( | |
<div className='Search' ref={(node) => (this.node = node)}> | |
<button className='Search__button' onClick={this.handleClick}> | |
<ReactSVG src='/img/search.svg'></ReactSVG> | |
<span className='sr-only'>Search</span> | |
</button> | |
<div | |
className={`Search__input ${ | |
this.state.isSearchbarVisible ? '' : 'Search__input--hidden' | |
}`}> | |
<input | |
type='text' | |
className='search-input' | |
data-aos='fade-left' | |
placeholder='Search..' | |
value={this.state.query} | |
onChange={this.handleInput} | |
ref={(input) => (this.searchInput = input)} | |
/> | |
<div className='Search__results'> | |
{this.state.results.map( | |
(page) => | |
page.layout !== 'hidden' && | |
page.layout !== 'null' && ( | |
<ResultItem page={page} key={page.id}></ResultItem> | |
), | |
)} | |
</div> | |
</div> | |
</div> | |
) | |
} | |
} |
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