/**
 * (c) 2008, Wacko-Wacko!
 * @author daclip
 */

 function W2SlideProcess() {
 	var classptr = this;

 	var timer = null;
 	var currentSlide = 1;
 	var max = 0;
 	var min = 0;
 	var scrollStep = 10;
 	var scrollSize = 0;
	var timerSpeed = 1;
 	var i = 0;	

 	
 	/* stuf */
 	this.reset = function() { currentSlide=1; i=0; cleanup(); this.onComplete("left") }
 	this.position = function() { return i; }
 	this.setScrollStep = function(value) { scrollStep = value; cleanup(); }
 	this.setScrollSize = function(value) { scrollSize = value; cleanup(); }
 	this.setMin = function(value) { min = value; cleanup(); }
 	this.setMax = function(value) { max = value; cleanup(); }
 	
 	
 	/* process */
	this.slideRight = function(n) {
		if (n) {
			max = n;
			currentSlide = max / scrollSize;
		}
		if ((i+=scrollStep) >= max) {
			clearTimeout(timer);
			currentSlide++;
			cleanup();
			
			this.onComplete("right");
			return true;
		}

		this.onStep(i);
		timer = setTimeout(function() { classptr.slideRight(); }, timerSpeed);
	}
	
	this.slideLeft = function(n) {
		if (n) {
			min = n;
			currentSlide = min / scrollSize;
		}
		if (i <= min) {
			clearTimeout(timer);
			currentSlide--;
			cleanup();
			this.onComplete("left");
			return true;
		}

		cleanup();
		max-=(scrollSize*2)+1;
		if ((i-=scrollStep) <= max) {
			clearTimeout(timer);
			currentSlide--;
			cleanup();
			this.onComplete("left");
			return true;
		}

		this.onStep(i);

		timer = setTimeout(function() { classptr.slideLeft(); }, timerSpeed);
	}

	/* callbacks */
	this.onStep = function(value) { }	
	this.onComplete = function(direction) {	}

	
	var cleanup = function() {
		max = currentSlide*scrollSize;
	}

	/* init */
	var init = function() { }
 	init();
 
 }