By Mike Hicks
—
Last update
Nov 18, 2007
—
Installed
409 times.
// ==UserScript==
// @name YouTube Video Original Page with Title
// @namespace http://umn.edu/~hick0088/
// @description Provides link to the original page of a YouTube video from a page which has an embedded YouTube Video.
// @include *
// @exclude http://www.youtube.com/*
// @exclude http://youtube.com/*
// ==/UserScript==
//
// Originally authored by Binny V A [See http://userscripts.org/people/13930]
// Title retrieval added by Mike Hicks [See http://userscripts.org/users/25406]
//
// Bugs: This doesn't work when the video only uses an <embed> tag...
//
(function() {
//Get all the object tags
//Use this page for testing...
//http://www.joshuakucera.net/2007/03/ok_this_youtube.html
var all_objects = document.getElementsByTagName('object');
var obj_urls = new Array();
var default_title = "YouTube - video page";
for(var i=0; i<all_objects.length; i++) {
var obj = all_objects[i];
if(obj.getElementsByTagName("param")) {
var all_params = obj.getElementsByTagName("param");
// Go through each 'param' tag to get the movie
for(var j=0; j<all_params.length; j++) {
var param = all_params[j];
if(param.getAttribute("name") == "movie") {
var movie = param.getAttribute("value");
if(movie.indexOf('youtube.com') == -1) continue;
// Convert: http://www.youtube.com/v/UjA0mPTxjo0
// to: http://www.youtube.com/watch?v=UjA0mPTxjo0
var url = movie.replace(/\/v\/([^&]+).*$/,"/watch?v=$1");
// Create an 'a href' element and add it after the object
var link = document.createElement("a");
link.setAttribute("href", url);
link.appendChild(document.createTextNode(default_title));
obj.parentNode.insertBefore(link,obj.nextSibling);
var br = document.createElement("br");
obj.parentNode.insertBefore(br,obj.nextSibling);
// save object index & url so we can change the title later
obj_urls[i] = url;
// Fire off a request to retrieve the actual YouTube page
// so we can get the title
GM_xmlhttpRequest({
method: "GET",
url: url,
onload: function(details) {
// forget everything you think you know at this
// point, since we've just been called
// asynchronously after the page loaded
// get the page title, to use for link
var mytitle = details.responseText.match(/<title>([^<]+)/)[1];
// retrieve the video ID from the response text
// so we can find the right link to replace (since
// some pages have more than one video on them)
var vid = details.responseText.match(/ajax\?v=([^&"]+)/)[1];
var myurl = "http://www.youtube.com/watch?v=" + vid;
// find the <object> which has the associated title
var myobj;
for (var k=0; k<obj_urls.length; k++) {
if (obj_urls[k] == myurl) {
myobj = all_objects[k];
break;
}
}
// find the link we added and change the title.
// start at the <object>, skip past the <br/>, and
// get the <a ...></a>
if (myobj) {
if (link = myobj.nextSibling.nextSibling) {
link.childNodes[0].nodeValue = mytitle;
}
}
// if myobj didn't exist, the original video has
// probably been taken down
}
});
}
}
}
}
})();
// vim:set sw=4 ts=4 expandtab:
