Created
December 3, 2015 10:12
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Embedded Youtube videos to iframe-based Youtube videos
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// ==UserScript== | |
// @name YouTube Flash Player Replacer | |
// @namespace http://0xF.kr/script/ | |
// @version 0.1 | |
// @description try to take over the world! | |
// @author JiminP | |
// @match https://namu.wiki/w/* | |
// @grant none | |
// ==/UserScript== | |
/* jshint -W097 */ | |
'use strict'; | |
// Your code here... | |
// <iframe width="420" height="315" src="https://www.youtube.com/embed/VEAy700YGuU" frameborder="0" allowfullscreen></iframe> | |
var embed_regex = /(?:[\/.]|^)youtube\.[^\/]+\/v\/([A-Za-z0-9_\-]{11})/i; | |
var assign_nonempty = function(f, t, n){ | |
if(f.hasAttribute(n)) t.setAttribute(n, f.getAttribute(n)); | |
}; | |
var truthy = function(v){ | |
if(!v) return false; | |
if(v === 'false' || v === 'False' || v === 'FALSE') return false; | |
if(v === '0') return false; | |
return true; | |
}; | |
window.addEventListener('load', function(){ | |
var replaced = []; | |
[].forEach.call(window.document.getElementsByTagName('object'), function(root){ | |
var children = [].slice.call(root.children), | |
params = {}; | |
var old_video_url, matches, | |
new_video_url = ""; | |
var new_video_elem = null; | |
children.forEach(function(param){ | |
if(param.tagName.toUpperCase() === "PARAM") | |
params[param.name] = param.value; | |
}); | |
if(!('movie' in params)) return; | |
old_video_url = params['movie']; | |
if(old_video_url.indexOf("youtube.") === -1) return; | |
matches = embed_regex.exec(old_video_url); | |
if(!matches) return; | |
new_video_url = "https://www.youtube.com/embed/" + matches[1]; | |
new_video_elem = window.document.createElement('iframe'); | |
new_video_elem.src = new_video_url; | |
new_video_elem.setAttribute('frameborder', '0'); | |
assign_nonempty(root, new_video_elem, 'width'); | |
assign_nonempty(root, new_video_elem, 'height'); | |
if(truthy(params['allowFullScreen'])) | |
new_video_elem.setAttribute('allowfullscreen', 'true'); | |
root.parentNode.insertBefore(new_video_elem, root.nextSibling); | |
root.parentNode.removeChild(root); | |
replaced.push(matches[1]); | |
}); | |
[].forEach.call(window.document.getElementsByTagName('embed'), function(root){ | |
var old_video_url, matches, | |
new_video_url = ""; | |
var new_video_elem = null; | |
if(!('src' in root)) return; | |
old_video_url = root.src; | |
if(old_video_url.indexOf("youtube.") === -1) return; | |
matches = embed_regex.exec(old_video_url); | |
if(!matches) return; | |
new_video_url = "https://www.youtube.com/embed/" + matches[1]; | |
new_video_elem = window.document.createElement('iframe'); | |
new_video_elem.src = new_video_url; | |
new_video_elem.setAttribute('frameborder', '0'); | |
assign_nonempty(root, new_video_elem, 'width'); | |
assign_nonempty(root, new_video_elem, 'height'); | |
assign_nonempty(root, new_video_elem, 'allowfullscreen'); | |
root.parentNode.insertBefore(new_video_elem, root.nextSibling); | |
root.parentNode.removeChild(root); | |
replaced.push(matches[1]); | |
}); | |
replaced.length && console.info(replaced.length+" YouTube video"+(replaced.length==1 ? " was" : "s were")+" replaced from Flash-based to HTML5-based."); | |
}); |
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