/*
    This file is part of JonDesign's SmoothSlideshow v2.1.

    JonDesign's SmoothSlideshow is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    JonDesign's SmoothSlideshow is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with Foobar; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    Main Developer: Jonathan Schemoul (JonDesign: http://www.jondesign.net/)
    Contributed code by:
    - Christian Ehret (bugfix)
    - Simon Willison (addLoadEvent)
*/

// declaring the class
var timedSlideShow = Class.create();

// implementing the class
timedSlideShow.prototype = {
	initialize: function(element, data) {
		this.currentIter = 0;
		this.lastIter = 0;
		this.maxIter = 0;
		this.slideShowElement = element;
		this.slideShowData = data;
		this.slideShowInit = 1;
		this.slideElements = Array();
		this.slideShowDelay = 5000;
		this.articleLink = "";
		//this.slideInfoZone = "";

		this.articleLink = document.createElement('a');
		this.articleLink.className = 'global';
		this.articleLink.href = this.slideShowData[0][1];
		element.innerHTML = '';
		element.appendChild(this.articleLink);

		this.maxIter = data.length;
		for(i=0;i<data.length;i++)
		{
			var currentImg = document.createElement('img');
			currentImg.className = "slideElement";
			currentImg.style.position="absolute";
			currentImg.style.margin = 0;
			currentImg.style.border = 0;
			currentImg.src = data[i][0];

			this.articleLink.appendChild(currentImg);
			currentImg.currentOpacity = new fx.Opacity(currentImg, {duration: 1000});
			currentImg.currentOpacity.set(0);
			this.slideElements[parseInt(i)] = currentImg;
		}
		
		this.loadingElement = document.createElement('div');
		this.loadingElement.className = 'loadingElement';
		this.articleLink.appendChild(this.loadingElement);

		this.doSlideShow();
	},
	destroySlideShow: function(element) {
		var myClassName = element.className;
		var newElement = document.createElement('div');
		newElement.className = myClassName;
		element.parentNode.replaceChild(newElement, element);
	},
	startSlideShow: function() {
		this.loadingElement.style.display = "none";
		this.lastIter = this.maxIter - 1;
		this.currentIter = 0;
		this.slideShowInit = 0;
		this.slideElements[parseInt(this.currentIter)].currentOpacity.set(1);
		setTimeout(this.nextSlideShow.bind(this),this.slideShowDelay);
	},
	nextSlideShow: function() {
		this.lastIter = this.currentIter;
		this.currentIter++;
		if (this.currentIter >= this.maxIter)
		{
			this.currentIter = 0;
			this.lastIter = this.maxIter - 1;
		}
		this.slideShowInit = 0;
		this.doSlideShow.bind(this)();
	},
	doSlideShow: function() {
		if (this.slideShowInit == 1)
		{
			imgPreloader = new Image();
			
			imgPreloader.onload=function()
			{
				setTimeout(this.startSlideShow.bind(this),10);
			}.bind(this);
			imgPreloader.src = this.slideShowData[0][0];
		} else {
			this.slideElements[parseInt(this.currentIter)].parentNode.href = this.slideShowData[parseInt(this.currentIter)][1];
			if (this.currentIter != 0) {
				this.slideElements[parseInt(this.currentIter)].currentOpacity.options.onComplete = function() {
					this.slideElements[parseInt(this.lastIter)].currentOpacity.set(0);
				}.bind(this);
				this.slideElements[parseInt(this.currentIter)].currentOpacity.custom(0, 1);
			} else {
				this.slideElements[parseInt(this.currentIter)].currentOpacity.set(1);
				this.slideElements[parseInt(this.lastIter)].currentOpacity.custom(1, 0);
			}
			setTimeout(this.nextSlideShow.bind(this),this.slideShowDelay);
		}
	}
};

function initTimedSlideShow(element, data) {
	alert("elo");
	var slideshow = new timedSlideShow(element, data);
}