/**
 * Playtagger- Mod
 * Adaptation of original del.icio.us Playtagger (now defunct)
 * -Uses local images and script
 * -Adds class "mp3" to img
 * Author: http://hearingvoices.com/news/2011/10/playtagger-mod/
 * Version: 0.1 (2011-10-06)
 *
 * Based on:
 * http://www.consumingexperience.com/2006/02/mp3s-align-delicious-playtagger-icon.html
 *
 * Dual licensed under the MIT and GPL licenses:
 * http://www.opensource.org/licenses/mit-license.php
 * http://www.gnu.org/licenses/gpl.html
 *
 * Upload /playtagger_mod folder on your site.
 * Set the playtagger_url variable form: http://YOUR_DOMAIN.COM/PATH_TO_FOLDER/playtagger_mod/
 * to the URL of your /playtagger_mod folder (needs trailing "/").
 */

// Set this:
var playtagger_url = '/playtagger/';

// The rest stays the same:
if(typeof(Delicious) === 'undefined') { Delicious = {}; }

Delicious.Mp3 = {
	playimg: null,
	player: null,
	go: function() {
		var all = document.getElementsByTagName('a');
		for (var i = 0, o; o = all[i]; i++) {
			if (o.href.match(/\.mp3$/i)) {
			   var img = document.createElement('img')
			   img.src = playtagger_url + 'play.gif';
			   img.title = o.title;
			   img.height = img.width = 12;
			   img.style.marginRight = '0.5em';
			   img.className = 'mp3';
			   img.style.cursor = 'pointer';
			   img.onclick = Delicious.Mp3.makeToggle(img, o.href);
			   o.parentNode.insertBefore(img, o);
			}
		}
	},
	toggle: function(img, url) {
		if (Delicious.Mp3.playimg == img) {
			Delicious.Mp3.destroy();
		}
		else {
			if (Delicious.Mp3.playimg) {
				Delicious.Mp3.destroy();
			}

			var a = img.nextSibling, c = '';
			if (document.defaultView && document.defaultView.getComputedStyle)
				c = document.defaultView.getComputedStyle(a,null).getPropertyValue('color');
			else if (a.currentStyle)
				c = a.currentStyle['color'];

			c = c.replace(/^rgb|[ ()]/g, '');

			var hex = c.match(/^#?([a-f0-9]{6})$/),
				hexSm = c.match(/^#?([a-f0-9]{3})$/),
				rgb = c.match (/^([0-9]+),([0-9]+),([0-9]+)$/);

			if (rgb) {
				var c16 = "0123456789abcdef", c = '';
				for (var i = 1, d; d = rgb[i]; i++) {
					var j = d%16; c = c + c16.charAt((d-j) / 16) + c16.charAt(j)
				}
			}
			else if (hex) c = hex[1];
			else if (hexSm)
				c = hexSm[1].charAt(0) + hexSm[1].charAt(0) + hexSm[1].charAt(1) + hexSm[1].charAt(1) + hexSm[1].charAt(2) + hexSm[1].charAt(2);
			else c = "000000";

			img.src = playtagger_url + 'stop.gif';
			Delicious.Mp3.playimg = img;
			Delicious.Mp3.player = document.createElement('span');
			Delicious.Mp3.player.innerHTML = '<object style="vertical-align:bottom;margin-right:0.2em" classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000"' +
'codebase=" http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,0,0 <http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,0,0> "' +
'width="100" height="14" id="player" align="middle">' +
'<param name="wmode" value="transparent" />' +
'<param name="allowScriptAccess" value="sameDomain" />' +
'<param name="flashVars" value="theLink='+url+'&amp;fontColor='+c+'" />' +
'<param name="movie" value="' + playtagger_url +
'playtagger.swf" /><param name="quality" value="high" />' +
'<embed style="vertical-align:bottom;margin-right:0.2em" src="' + playtagger_url +
'playtagger.swf" flashVars="theLink=' + url + '&amp;fontColor='+c+'"'+
'quality="high" wmode="transparent" width="100" height="14" name="player"' +
'align="middle" allowScriptAccess="sameDomain" type="application/x-shockwave-flash"' +
' pluginspage="http://www.macromedia.com/go/getflashplayer" /></object>';
			img.parentNode.insertBefore(Delicious.Mp3.player , img.nextSibling);

			$(document).trigger('playtagger.play', [img.title]);
		}
	},
	destroy: function() {
		Delicious.Mp3.playimg.src =  playtagger_url + 'play.gif';
		Delicious.Mp3.playimg = null;
		Delicious.Mp3.player.removeChild(Delicious.Mp3.player.firstChild);
		Delicious.Mp3.player.parentNode.removeChild(Delicious.Mp3.player);
		Delicious.Mp3.player = null;
	},
	makeToggle: function(img, url) {
		return function() {
			Delicious.Mp3.toggle(img, url);
		}
	}
};

Delicious.addLoadEvent = function(f) {
	var old = window.onload;
	if (typeof old != 'function') window.onload = f;
	else {
		window.onload = function() {
			old();
			f();
		}
	}
};

Delicious.addLoadEvent(Delicious.Mp3.go);