@mintuz/react-intersect

<!doctype html> <html lang="en"> <head> <title>Code coverage report for workspace/src/index.js</title> <meta charset="utf-8" /> <link rel="stylesheet" href="../../prettify.css" /> <link rel="stylesheet" href="../../base.css" /> <meta name="viewport" content="width=device-width, initial-scale=1"> <style type='text/css'> .coverage-summary .sorter { background-image: url(../../sort-arrow-sprite.png); } </style> </head> <body> <div class='wrapper'> <div class='pad1'> <h1> <a href="../../index.html">All files</a> / <a href="index.html">workspace/src</a> index.js </h1> <div class='clearfix'> <div class='fl pad1y space-right2'> 96.3% Statements 26/27 </div> <div class='fl pad1y space-right2'> 69.23% Branches 9/13 </div> <div class='fl pad1y space-right2'> 100% Functions 11/11 </div> <div class='fl pad1y space-right2'> 96.3% Lines 26/27 </div> </div> </div> <div class='status-line high'></div> <pre><table class="coverage"> <tr><td class="line-count quiet">1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101</td><td class="line-coverage quiet">        1x       6x 6x   6x 2x     6x 1x     6x   3x       3x 3x               3x           6x                 2x 1x     2x 2x       2x             2x 1x     2x 2x       2x             4x       6x                       8x      </td><td class="text"><pre class="prettyprint lang-js">import React, { useState, useCallback, useRef } from 'react'; import ReactDOM from 'react-dom'; import Horizon from '@mintuz/horizon';   export const useIntersect = ({ triggerOnce = false, intersectionObserverConfig }) => { const instanceRef = useRef(null); const [inView, setInView] = useState(false);   const onEntry = () => { setInView(true); };   const onExit = () => { setInView(false); };   const ref = useCallback( (node) => { Iif (instanceRef.current) { instanceRef.current.unobserve(); }   Eif (node) { const instance = Horizon({ onEntry, onExit, triggerOnce, toObserve: node, intersectionObserverConfig });   instanceRef.current = instance; } }, [triggerOnce, intersectionObserverConfig] );   return [inView, ref]; };   export default class ReactIntersect extends React.Component { state = { inView: false };   onEntry = (entry) => { if (this.props.onEntry) { this.props.onEntry(entry); }   this.setState((prevState) => { const newState = { inView: true };   return this.props.stateReducer ? this.props.stateReducer(prevState, newState) : newState; }); };   onExit = (entry) => { if (this.props.onExit) { this.props.onExit(entry); }   this.setState((prevState) => { const newState = { inView: false };   return this.props.stateReducer ? this.props.stateReducer(prevState, newState) : newState; }); };   shouldComponentUpdate(nextProps, nextState) { return nextState.inView !== this.state.inView; }   componentDidMount() { Horizon({ onEntry: this.onEntry, onExit: this.onExit, triggerOnce: this.props.triggerOnce, toObserve: ReactDOM.findDOMNode(this), intersectionObserverConfig: { ...this.props.intersectionObserverConfig } }); }   render() { return this.props.render(this.state.inView); } }  </pre></td></tr> </table></pre> <div class='push'></div> </div> <div class='footer quiet pad2 space-top1 center small'> Code coverage generated by <a href="https://istanbul.js.org/" target="_blank">istanbul</a> at Sun Oct 13 2019 15:40:40 GMT+0000 (Coordinated Universal Time) </div> </div> <script src="../../prettify.js"></script> <script> window.onload = function () { if (typeof prettyPrint === 'function') { prettyPrint(); } }; </script> <script src="../../sorter.js"></script> </body> </html>