// ==UserScript==
// @name          Pouet 'prod list thumbnailer'
// @description	  add a thumbnail for each prod in prod list
// @include       http://www.pouet.net/prodlist.php*
// ==/UserScript==
/* 2012.08.24 Tigrou (ind). Use it at your own risk */
!(function ()
{   // add a thumbnail for each prod in prod list
    var table = document.querySelectorAll('table[cellspacing="1"][cellpadding="2"]')[1];
    var path = 'http://www.pouet.net/screenshots/';
    var ext = ['.png', '.jpg', '.gif']; 
    for (var i = 0; i < table.rows.length; i++)
    {
        var row = table.rows[i];
        var match = row.cells[0].innerHTML.match(/prod.php\?which=(\d+)/);
        if (match)
        {
            var cell = row.insertCell(0);
            var prodid = match[1];
            var src = window.localStorage.getItem(prodid);
            if (src != "none")
            {
                var img = document.createElement('img');
                img.width = '120';
                img.height = '80';                
                img.prodid = prodid;
                img.tries = 0;
                img.onerror = function (evt)
                {
                    this.tries++;  
                    if (this.tries < ext.length) this.src = path + this.prodid + ext[this.tries];
                    else
                    {
                        window.localStorage.setItem(this.prodid, "none");
                        this.parentNode.removeChild(this);
                    }
                };
                img.onload = function (evt)
                {                   
                    window.localStorage.setItem(this.prodid, this.src);                
                };
                if (src == null) src = path + prodid + ext[img.tries];
                img.src = src;
                cell.appendChild(img);
            }
        }
        else row.insertCell(0);
    }
})();