/*
 * slider 0.1 - jQuery plugin
 * Based on loopedSlider by Nathan Searles (http://nathansearles.com/loopedslider/)

 *	Copyright (c) 2009 Nathan Searles (http://nathansearles.com/)
 *	Dual licensed under the MIT (MIT-LICENSE.txt)
 *	and GPL (GPL-LICENSE.txt) licenses.
 *
 *	Built for jQuery library
 *	http://jquery.com
 *
 */
 

/*
 *	markup example for $("#slider").slider();
 *
 *	<div id="slider">	
 *		<div class="container">
 *			<div class="slides">
 *				<div><img src="01.jpg" alt="" /></div>
 *				<div><img src="02.jpg" alt="" /></div>
 *				<div><img src="03.jpg" alt="" /></div>
 *				<div><img src="04.jpg" alt="" /></div>
 *			</div>
 *		</div>
 *		<a href="#" class="previous">previous</a>
 *		<a href="#" class="next">next</a>
 *		<ul class="pagination">
 *			<li><a href="#">1</a></li>
 *			<li><a href="#">2</a></li>
 *			<li><a href="#">3</a></li>
 *			<li><a href="#">4</a></li>
 *		</ul>	
 *	</div>
 *
*/

(function($) {
	$.fn.slider = function(options) {
		
	var defaults = {			
		container: '.container',
		slides: '.slides',
		pagination: '.pagination',
		containerClick: true, // Click container for next slide
		autoStart: 0, // Set to positive number for auto interval and interval time
		slidespeed: 300, // Speed of slide animation
		fadespeed: 300, // Speed of fade animation
		autoHeight: false, // Set to positive number for auto height and animation speed
		isVertical: false,
		useMouseWheel: true
	};
	if($('body').width() <= 480){
	   //is mobile
	   return false;
	}
	this.each(function() {
		
		var obj = $(this);
		var o = $.extend(defaults, options);
		var pagination = $(o.pagination+' li a',obj);
		var m = 0;
		var aniObj = {};
		var t = 1;
		var s = $(o.slides,obj).children().size();
		var w = $(o.slides,obj).children().outerWidth();
		var h = $(o.slides,obj).children().outerHeight();
		var p = 0;
		var u = false;
		var n = 0;

		
		if(o.isVertical){
		   $(o.slides,obj).css({height:(s*h), width: '100%'});
	   }else{
	      $(o.slides,obj).css({width:(s*w)});
	   }
		
		$(o.slides,obj).children().each(function(){
		   if(!$(this).hasClass('admin-inline')){
   		   if(o.isVertical){
   			   $(this).css({position:'absolute',top:p,display:'block'});
   			   p=p+h;
   		   }else{
   		      $(this).css({position:'absolute',left:p,display:'block'});
   			   p=p+w; 
   		   }
	      }
		});
		
		$(pagination,obj).each(function(){
			n=n+1;
			$(this).attr('rel',n);
			$(pagination.eq(0),obj).parent().addClass('active');
		});
		
      // $(o.slides,obj).children(':eq('+(s-1)+')').css({position:'absolute',left:-w});
		
		if(o.autoHeight){autoHeight(t);}
		
		$('.next',obj).unbind();
		$('.next',obj).bind('click', nextClick);
	   
	   $('.previous',obj).unbind();
		$('.previous',obj).bind('click', prevClick);
		
		
		function prevClick(evt){
		   evt.preventDefault();
		   if((u===false) && !($(this).hasClass('disabled'))) {	
				animate('prev',true);
				if(o.autoStart){clearInterval(sliderIntervalID);}
			} return false;
		}
		
		function nextClick(evt){
		   evt.preventDefault();
		   if((u===false) && !($(this).hasClass('disabled'))) {
				animate('next',true);
				if(o.autoStart){clearInterval(sliderIntervalID);}
			} return false;
		}
		
		
		obj.unbind();
		if(o.useMouseWheel){
		   obj.bind('mousewheel', wheelScroll);
	   }
		
		function wheelScroll(evt, delta){
		   var dir = delta > 0 ? 'prev' : 'next';
		   evt.preventDefault();
		   if(u===false){
		      if((dir === 'next') && !($('.next',obj).hasClass('disabled'))){
		         animate(dir,true);
	         }
	         if((dir === 'prev') && !($('.previous',obj).hasClass('disabled'))){
		         animate(dir,true);
	         }
		   }
		}
		
		if (o.containerClick) {
			$(o.container ,obj).click(function(){
				if(u===false) {
					animate('next',true);
					if(o.autoStart){clearInterval(sliderIntervalID);}
				} return false;
			});
		}
		
		$(pagination,obj).click(function(){
			if ($(this).parent().hasClass('active')) {return false;}
			else {
				t = $(this).attr('rel');
				$(pagination,obj).parent().siblings().removeClass('active');
				$(this).parent().addClass('active');
				animate('fade',t);
				if(o.autoStart){clearInterval(sliderIntervalID);}
			} return false;
		});
		
		if (o.autoStart) {
			sliderIntervalID = setInterval(function(){
				if(u===false) {animate('next',true);}
			}, o.autoStart);
		}
		
		function current(t) {
			if(t===s+1){t=1;}
			if(t===0){t=s;}
			$(pagination,obj).parent().siblings().removeClass('active');
			$(pagination+'[rel="' + (t) + '"]',obj).parent().addClass('active');
		};
		
		function autoHeight(t) {
			if(t===s+1){t=1;}
			if(t===0){t=s;}	
			var getHeight = $(o.slides,obj).children(':eq('+(t-1)+')',obj).outerHeight();
			$(o.container,obj).animate({height: getHeight},o.autoHeight);					
		};		
		
		function animate(dir,clicked){	
			u = true;	
			switch(dir){
				case 'next':
					t = t+1;
					m = (o.isVertical) ? (-(t*h-h)) : (-(t*w-w));
					aniObj = (o.isVertical) ? {top: m}  : {left: m};
					current(t);
					if(o.autoHeight){autoHeight(t);}
					$(o.slides,obj).animate(aniObj, o.slidespeed,function(){
						if(t===(s-2)){
						   $('.next',obj).addClass('disabled');
						}else{
						   $('.next',obj).removeClass('disabled');
						}
						$('.previous',obj).removeClass('disabled');
						u = false;
					});					
					break; 
				case 'prev':
					t = t-1;
					m = (o.isVertical) ? (-(t*h-h)) : (-(t*w-w));
					aniObj = (o.isVertical) ? {top: m}  : {left: m};
					current(t);
					if(o.autoHeight){autoHeight(t);}
					$(o.slides,obj).animate(aniObj, o.slidespeed,function(){
						if(t===(1)){
						   $('.previous',obj).addClass('disabled');
						}else{
						   $('.previous',obj).removeClass('disabled');
						}
						$('.next',obj).removeClass('disabled');
						u = false;
					});
					break;
				case 'fade':
					t = [t]*1;
					m = (-(t*w-w));
					current(t);
					if(o.autoHeight){autoHeight(t);}
					$(o.slides,obj).children().fadeOut(o.fadespeed, function(){
						$(o.slides,obj).css({left: m});
						$(o.slides,obj).children(':eq('+(s-1)+')').css({left:s*w-w});
						$(o.slides,obj).children(':eq(0)').css({left:0});
						if(t===s){$(o.slides,obj).children(':eq(0)').css({left:(s*w)});}
						if(t===1){$(o.slides,obj).children(':eq('+(s-1)+')').css({ position:'absolute',left:-w});}
						$(o.slides,obj).children().fadeIn(o.fadespeed);
						u = false;
					});
					break; 
				default:
					break;
				}					
			};
		});
	};
})(jQuery);