/*!

 * Lambert Js 

 *

 * Copyright 2010, Luca Bertaiola

 * http://www.luglio7.com/

 * Date: 26 Aug 2010

 */

 

// main lambert object

 

var lambert = {

	

	init: function()

	{

		if(document.getElementById("slideshow"))

		{

			slideshow.init();

		}

		

		if(document.getElementById("grid_page"))

		{

			gridPage.init();

		}

	}

	

};



// grid page category



var gridPage = {

	vars : {},

	elements : {},

	

	init : function()

	{

		gridPage.elements.images = $(".grid_box a img");

		gridPage.imagesSetup();

	},

	

	imagesSetup: function()

	{

		for(var i = 0; i < gridPage.elements.images.length; i++)

		{

			var element = $(gridPage.elements.images[i]);

			element.css({"opacity" : .35});

		

			element.mouseover(function()

			{

				$(this).animate({"opacity" : 1}, {"duration": 750, "easing" : "easeOutQuart", "queue" : false });

			});

			

			element.mouseout(function()

			{

				$(this).animate({"opacity" : .35}, {"duration": 750, "easing" : "easeOutQuart", "queue" : false });

			});

		}

	}

	

};



// slideshow object



var slideshow = {



	vars: {

		margin : 0,

		direction : 1,

		duration : 1000,

		opacityOutside: .25,

		interval: true,

		intervalValue: 7500,

		transition: 'easeOutExpo'

	},

	

	init: function()

	{

		// setup vars

		slideshow.vars.currentIndex = 0;

		slideshow.vars.animation = true;

	

		slideshow.barSetup();

		slideshow.buttonsSetup();

		slideshow.imagesSetup();

		slideshow.textSetup();

		

		// interval

		slideshow.setInterval();

	},

	

	barSetup: function()

	{

		// elements

		var imagesElements = $("#slideshow_bar img");

		var barElement = $("#slideshow_bar");

	

		// get values 		

		var imageWidth = imagesElements.width();		

		var totalWidth = (imageWidth + slideshow.vars.margin) * imagesElements.length;		

		

		// set values

		slideshow.vars.imageWidth = imageWidth;

		slideshow.vars.totalImages = imagesElements.length;

		barElement.css("width", totalWidth + "px");

		imagesElements.css("marginRight", slideshow.vars.margin + "px")

	},

	

	imagesSetup: function()

	{

		var imagesElements = $("#slideshow_bar img");

		

		if(imagesElements.length > 1)

		{

			for(var i = 1; i < imagesElements.length; i++)

			{

				$("#slideshow_bar img:eq("+ i +")").css("opacity", slideshow.vars.opacityOutside);

			}

		}

		else

		{

			$("#slideshow_next").hide();

			$("#slideshow_prev").hide();

		}		

	},

	

	textSetup: function()

	{

		var spanElements = $("#slideshow_info span");

		for(var i = 1; i < spanElements.length; i++)

		{

			$("#slideshow_info span:eq("+ i +")").hide();

		}

	},

	

	buttonsSetup: function()

	{

		// elements

		var buttonsElements = $(".slideshow_button");

		

		buttonsElements.click(function()

		{

			slideshow.vars.direction = ($(this).attr("id") == "slideshow_next")? 1 : 0;

			slideshow.clearInterval();

			slideshow.animateTextBar();

			return;

		});

	},

	

	animateTextBar: function(opacity)

	{

		if((!opacity) || (opacity == 0))

		{

			var nextIndex = slideshow.nextIndex();

			if(slideshow.vars.currentIndex != nextIndex)

			{

				$("#slideshow_info").animate(

					{

						"opacity": 0

					},

					{

						duration: 500,

						easing: 'easeOutExpo',

						queue: true,

						complete: function()

						{

							$("#slideshow_info span:eq("+ slideshow.vars.currentIndex +")").hide();

							$("#slideshow_info span:eq("+ nextIndex +")").show();

							slideshow.animateBar();

						}

					}

				);

			}

		}

		else

		{

			$("#slideshow_info").animate(

				{

					"opacity": 1

				},

				{

					duration: 750,

					easing: 'easeOutExpo',

					queue: true,

					complete: function()

					{

						slideshow.vars.animation = true;

						slideshow.setInterval();

					}

				}

			);

		};

	},

	

	animateBar: function()

	{

		var barElement = $("#slideshow_bar");

		var operator = (slideshow.vars.direction == 1)? "-=" : "+=";

		

		if(slideshow.vars.animation)

		{

			slideshow.vars.animation = false;

			slideshow.vars.currentIndex = slideshow.nextIndex();

			

			var left = ((slideshow.vars.imageWidth + slideshow.vars.margin) * slideshow.vars.currentIndex) * -1;

			

			// bar animation

			barElement.animate(

			{

				"left" : left + "px"

			},

			{

				duration: slideshow.vars.duration,

				easing: slideshow.vars.transition,

				queue: true,

				complete: function()

				{

					slideshow.animateTextBar(1);

				}

			}

			);

			

			slideshow.fadeImages();

			

		}		

		return false;

	},

	

	fadeImages: function()

	{

		for(var i=0; i < slideshow.vars.totalImages; i++)

		{

			if(i == slideshow.vars.currentIndex)

			{

				$("#slideshow_bar img:eq("+ i +")").fadeTo(slideshow.vars.duration, 1);

			}

			else

			{

				$("#slideshow_bar img:eq("+ i +")").fadeTo(slideshow.vars.duration, slideshow.vars.opacityOutside);

			}

		}

	},

	

	nextIndex: function()

	{

	

		if(slideshow.vars.direction == 0)

		{

			if(slideshow.vars.currentIndex - 1 >= 0)

			{

				return slideshow.vars.currentIndex - 1;

			}

			else

			{

				return slideshow.vars.totalImages - 1;

			}

		}

		

		if(slideshow.vars.direction == 1)

		{

			if(slideshow.vars.currentIndex + 1 < slideshow.vars.totalImages)

			{

				return slideshow.vars.currentIndex + 1;

			}

			else

			{

				return 0;

			}

		}

	},

	

	clearInterval: function()

	{

		if(slideshow.vars.interval)

		{

			clearTimeout(slideshow.vars.timeOutInstance);

		}

	},

	

	setInterval: function()

	{

		if(slideshow.vars.interval)

		{

			slideshow.vars.timeOutInstance = setTimeout("slideshow.animateTextBar()", slideshow.vars.intervalValue);

		}

	}

}



// jquery init



$(document).ready(function(){

	lambert.init();

});