Created
December 27, 2017 23:02
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Scroll position saver
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| <!doctype html> | |
| <html> | |
| <head> | |
| <meta charset="utf8"> | |
| <style> | |
| div#main { | |
| border: 1px solid black; | |
| display: inline-block; | |
| width: 1024px; | |
| max-width: 1024px; | |
| height: 1024px; | |
| max-height: 1024px; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <div id="main"></div> | |
| <script type="text/javascript"> | |
| class ScrollPoster { | |
| constructor(url) { | |
| this.url = url; | |
| this.isScrolling = null; | |
| this.init(); | |
| } | |
| post(location, position) { | |
| console.log('Posting: ', { href: location.href, pos: position }); | |
| } | |
| init() { | |
| var self = this; | |
| window.addEventListener('scroll', function(e) { | |
| window.clearTimeout(this.isScrolling); | |
| this.isScrolling = setTimeout(function() { | |
| const pos = window.scrollY; | |
| self.post(window.location, pos); | |
| }, 333); | |
| }, false); | |
| } | |
| }; | |
| window.onload = () => { | |
| const handler = new ScrollPoster('http://example.com'); | |
| }; | |
| </script> | |
| </body> | |
| </html> |
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