Creates a small M in front of each artist link on www.last.fm. The M's are linked to perform a band search on www.metal-archives.com
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// ==UserScript==
// @name Last.fm link to Metal Archives
// @namespace https://github.com/Row/lastfm-userscripts
// @description Creates a small M in front of each artist link on www.last.fm. The M's are linked to perform a band search on www.metal-archives.com
// @version 1.7.1
// @include http://www.last.fm*
// @include http://www.lastfm.*
// @include http://cn.last.fm*
// ==/UserScript==
function addStyle(css)
{
var head, style;
head = document.getElementsByTagName('head')[0];
if (!head) { return; }
style = document.createElement('style');
style.type = 'text/css';
try {
style.innerHTML = css;
} catch(err) {
style.innerText = css;
}
head.appendChild(style);
}
addStyle('.LMAa { font-size: 70% !important; display: inline}' +
'.text-over-image-text>.LMAa,.libraryItems .LMAa, .similar-artists li .LMAa {color: #000; padding: 3px; position: absolute; z-index: 99; background: #FFF; border: 1px solid #000;line-height: 80%}' +
'.text-over-image-text>.LMAa {right: 2px; top: 2px;}' +
'.media>.LMAa,.chartbar .LMAa {display:none}'
);
function parser(doc)
{
//Create a node-list of all a-tags
var nodeListA = doc.getElementsByTagName('a');
//Regular expression
//Match /music/ and one or more characters which is not /
var re = /\/music\/([^/#]+)$/i;
var id;
//Iterate through the node-list
for (var i = 0; i < nodeListA.length; i++) {
//Check if current a-element has childnodes and that the firstchild is not an image
//If so continue whit next iteration.
if ((nodeListA[i].className.search(/(LMA|mSend|plays)/) > -1)
|| (!nodeListA[i].hasChildNodes())
|| (nodeListA[i].hasChildNodes() && nodeListA[i].firstChild.nodeName == 'IMG'))
continue;
//Match the href against the regular expression
if (id = nodeListA[i].href.match(re)) {
// Filter
var artist = id[1].replace(/\?.+$/, '');
//Use className as a marker
nodeListA[i].className += ' LMA';
//Create the M
var nma = doc.createElement('a');
nma.className = 'LMAa';
nma.innerHTML = 'M ';
nma.title = 'Search ' + artist + ' on Metal Archives';
nma.href = 'http://www.metal-archives.com/search?type=band_name&searchString=' + artist;
nma = nodeListA[i].parentNode.insertBefore(nma, nodeListA[i]);
//Since the nodelist is "live".
i++;
}
}
//Init the ticker
ticker(doc,i);
}
//Method to check if the document has changed
function ticker(doc,aCount)
{
//if there are new a-tags
if(aCount != doc.getElementsByTagName('a').length) {
parser(doc);
return;
}
//Call the ticker again
window.setTimeout(function() {ticker(doc,aCount);}, 1000);
}
parser(document);