/**
 * (c) 2008, Wacko-Wacko!
 * @author daclip
 * @include "./WItemObject.js"
 * @include "./WImageObject.js"
 */

function WSlideSplash(splashPtr) {
	var __classptr = this;
	var self = null;
	var navigationSelf = null;
	
	/* slide timer vars */
	var timer = null;
	var currentShiftValue = 0;
	var _timerSpeed = 1;
	var slideStep = 300;
	var scrollStep = 10;
	var maxValue = -1200;
	var currentSlide = 1;

	/* useful stuff */
	this.onNewSlideAction = function(slide_id) { }
	
	this.getSelf = function() { return self; }
	
	/* public */
	this.slideRight = function(n) { this.processSlideRight();  }
	this.slideLeft = function(n) { this.processSlideLeft(); }
	
	/* slide effect processing */
	this.processSlideRight = function(n) {
		if (currentShiftValue <= maxValue)
			return;
			
		var __backref = this;
		var max = -(slideStep*currentSlide);
		if (max <= maxValue) max = maxValue;
		
		if ((currentShiftValue-=scrollStep) <= max) {
			clearTimeout(timer);
			currentShiftValue=slideStep*currentSlide;
			currentSlide++;
			currentShiftValue = max;
			this.onNewSlideAction(currentSlide);
			return false;
		}
		set_slidebox_position(currentShiftValue);
		timer = setTimeout(function() { __backref.processSlideRight(); }, _timerSpeed);
	}
	
	this.processSlideLeft = function(n) {
		var __backref = this;
		if (currentShiftValue >= 0) {
			clearTimeout(timer);
			currentShiftValue = 0;
			return false;
		}

		var max = -(slideStep*currentSlide-(slideStep*2));
		if ((currentShiftValue+=scrollStep) >= max) {
			clearTimeout(timer);
			currentSlide--;
			this.onNewSlideAction(currentSlide);
			return false;
		}
		set_slidebox_position(currentShiftValue);
		timer = setTimeout(function() { __backref.processSlideLeft(); }, _timerSpeed);
	}
	
	/* private */	
	var set_slidebox_position = function(value) {
		self.style.backgroundPosition = value+"px"+" 0px";
	}

		
	var init = function() {
		self = splashPtr;
		set_slidebox_position(0);
	}
	init();

}