Created
June 21, 2018 19:47
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Progresso de carregamento da página
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<!DOCTYPE html> | |
<html> | |
<head> | |
<link href="http://ricostacruz.com/nprogress/nprogress.css?t=4" rel="stylesheet" /> | |
<script src="http://ricostacruz.com/nprogress/nprogress.js?t=4"></script> | |
<script> | |
NProgress.start(); | |
let current = 2; | |
let total = document.querySelectorAll('script, img, link').length; | |
console.log('Iniciando: ', total); | |
var observer = new MutationObserver(moEvent => { | |
moEvent.forEach(mr => { | |
if (!mr.addedNodes.length) return; | |
mr.addedNodes.forEach(el => { | |
// Só espera o carregamento dos elementos IMG, LINK e SCRIPT | |
if (['SCRIPT', 'IMG', 'LINK'].indexOf(el.tagName) === -1) return; | |
// Adiciona o evento para quando o elemento for carregado | |
el.addEventListener('load', elEvent => { | |
NProgress.set(++current / total); | |
}); | |
}); | |
}); | |
}); | |
observer.observe(document, { | |
attributes: false, | |
childList: true, | |
subtree: true | |
}); | |
window.addEventListener('load', e => { | |
console.log('Concluido: ', current); | |
observer.disconnect(); | |
NProgress.done(); | |
}); | |
</script> | |
<title>Page Title</title> | |
<style> | |
body { | |
background-color: black; | |
text-align: center; | |
color: white; | |
font-family: Arial, Helvetica, sans-serif; | |
} | |
</style> | |
<script src="https://code.jquery.com/jquery-3.3.1.js?3"></script> | |
<script src="https://underscorejs.org/underscore.js?3"></script> | |
</head> | |
<body> | |
<h1>This is a Heading</h1> | |
<p>This is a paragraph.</p> | |
<p>Edit the code in the window to the left, and click "Run" to view the result.</p> | |
<img src="https://www.w3schools.com/tryit/avatar.png" alt="Avatar" style="width:200px"> | |
</body> | |
</html> |
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