/* Copyright (c) 2008 Kean Loong Tan http://www.gimiti.com/kltan

 * Licensed under the MIT (http://www.opensource.org/licenses/mit-license.php)

 * jFlow

 * Version: 1.2 (July 7, 2008)

 * Requires: jQuery 1.2+

 */

 

(function($) {



	$.fn.jFlow = function(options) {

		var opts = $.extend({}, $.fn.jFlow.defaults, options);

		var randNum = Math.floor(Math.random()*11);

		var jFC = opts.controller;

		var jFS =  opts.slideWrapper;

		var jSel = opts.selectedWrapper;

		var sliderClicked = false;

		var cur = 0;

		var maxi = $(jFC).length;
		
		$.fn.jFlow.jFlowAuto = function()
		{
			if (opts.interval > 0 && !sliderClicked)
			{
				if ($(opts.slides).is(":not(:animated)"))
				{
					var dur = 1;
					if (cur < maxi - 1)
						cur++;
					else
					{
						cur = 0;
						dur = maxi -1;
					}
					$(jFC).removeClass(jSel);
					slide(dur, cur);
					$(jFC).eq(cur).addClass(jSel);
				}
				autoflow = setTimeout("$.fn.jFlow.jFlowAuto()", opts.interval);
			}
		}
		var autoflow = setTimeout("$.fn.jFlow.jFlowAuto()", opts.interval);

		// sliding function

		var slide = function (dur, i) {

			$(opts.slides).children().css({

				overflow:"hidden"

			});

			$(opts.slides + " iframe").hide().addClass("temp_hide");

			$(opts.slides).animate({

				marginLeft: "-" + (i * $(opts.slides).find(":first-child").width() + "px")}, 

				opts.duration*(dur),

				opts.easing,

				function(){

					$(opts.slides).children().css({

						overflow:"auto"

					});

					$(".temp_hide").show();

				}

			);

			

		}

		$(this).find(jFC).each(function(i){

			$(this).click(function(){

				sliderClicked = true;
				clearTimeout(autoflow);
				if ($(opts.slides).is(":not(:animated)")) {

					$(jFC).removeClass(jSel);

					$(this).addClass(jSel);

					var dur = Math.abs(cur-i);

					slide(dur,i);

					cur = i;

				}

			});

		});	

		

		$(opts.slides).before('<div id="'+jFS.substring(1, jFS.length)+'"></div>').appendTo(jFS);

		

		$(opts.slides).find("div").each(function(){

			$(this).before('<div class="jFlowSlideContainer"></div>').appendTo($(this).prev());

		});

		

		//initialize the controller

		$(jFC).eq(cur).addClass(jSel);

		

		var resize = function (x){

			$(jFS).css({

				position:"relative",

				width: opts.width,

				height: opts.height,

				overflow: "hidden"

			});

			//opts.slides or #mySlides container

			$(opts.slides).css({

				position:"relative",

				width: $(jFS).width()*$(jFC).length+"px",

				height: $(jFS).height()+"px",

				overflow: "hidden"

			});

			// jFlowSlideContainer

			$(opts.slides).children().css({

				position:"relative",

				width: $(jFS).width()+"px",

				height: $(jFS).height()+"px",

				"float":"left",

				overflow:"auto"

			});

			

			$(opts.slides).css({

				marginLeft: "-" + (cur * $(opts.slides).find(":eq(0)").width() + "px")

			});

		}

		

		// sets initial size

		resize();



		// resets size

		$(window).resize(function(){

			resize();						  

		});

		

		$(opts.prev).click(function(){

			sliderClicked = true;
			clearTimeout(autoflow);
			if ($(opts.slides).is(":not(:animated)")) {

				var dur = 1;

				if (cur > 0)

					cur--;

				else {

					cur = maxi -1;

					dur = cur;

				}

				$(jFC).removeClass(jSel);

				slide(dur,cur);

				$(jFC).eq(cur).addClass(jSel);

			}

		});

		

		$(opts.next).click(function(){
			sliderClicked = true;
			clearTimeout(autoflow);
			if ($(opts.slides).is(":not(:animated)")) {

				var dur = 1;

				if (cur < maxi - 1)

					cur++;

				else {

					cur = 0;

					dur = maxi -1;

				}

				$(jFC).removeClass(jSel);

				slide(dur, cur);

				$(jFC).eq(cur).addClass(jSel);

			}

		});
	};	

	$.fn.jFlow.defaults = {

		controller: ".jFlowControl", // must be class, use . sign

		slideWrapper : "#jFlowSlide", // must be id, use # sign

		selectedWrapper: "jFlowSelected",  // just pure text, no sign

		easing: "swing",

		duration: 400,

		width: "100%",

		prev: ".jFlowPrev", // must be class, use . sign

		next: ".jFlowNext", // must be class, use . sign
		
		interval: 5000 // Tempo pra troca de slides.

	};
	

})(jQuery);