/*
Supersized - Fullscreen Slideshow jQuery Plugin
Version 3.0
By Sam Dunn (www.buildinternet.com // www.onemightyroar.com)
Version: supersized.3.0.js
Website: www.buildinternet.com/project/supersized
*/

(function($){

	//Resize image on ready or resize
	$.fn.supersized = function() {
		
		
		$.inAnimation = false;
		$.paused = false;
		
		var options = $.extend($.fn.supersized.defaults, $.fn.supersized.options);
		$.currentSlide = options.start_slide - 1;
		
		/******Set up initial images -- Add class doesnt work*****/
		//Set previous image
		var imageLink = (options.slides[options.slides.length - 1].url) ? "href='" + options.slides[options.slides.length - 1].url + "'" : "";
		$("<img/>").attr("src", options.slides[options.slides.length - 1].image).appendTo("#supersized").wrap("<a " + imageLink + "></a>");//Doesnt account for start slide
		
		//Set current image
		imageLink = (options.slides[$.currentSlide].url) ? "href='" + options.slides[$.currentSlide].url + "'" : "";
		$("<img/>").attr("src", options.slides[$.currentSlide].image).appendTo("#supersized").wrap("<a class=\"activeslide\" " + imageLink + "></a>");
		
		//Set next image
		if(options.slides.length > 1)
		{
			imageLink = (options.slides[$.currentSlide + 1].url) ? "href='" + options.slides[$.currentSlide + 1].url + "'" : "";
			$("<img/>").attr("src", options.slides[$.currentSlide + 1].image).appendTo("#supersized").wrap("<a " + imageLink + "></a>");
		}
		
		
		$(document).ready(function() {
			$('#supersized').resizenow();
		});
		
		$(window).bind("resize", function(){
    		$('#supersized').resizenow(); 
		});
	};
	
	//Adjust image size
	$.fn.resizenow = function() {
		var t = $(this);
		var options = $.extend($.fn.supersized.defaults, $.fn.supersized.options);
	  	return t.each(function() {
	  		
			//Define image ratio
			var ratio = options.startheight/options.startwidth;
			
			//Gather browser and current image size
			var imagewidth = t.width();
			var imageheight = t.height();
			var browserwidth = $(window).width();
			var browserheight = $(window).height();
			var offset;

			//Resize image to proper ratio
			if ((browserheight/browserwidth) > ratio){
			    t.height(browserheight);
			    t.width(browserheight / ratio);
			    t.children().height(browserheight);
			    t.children().width(browserheight / ratio);
			} else {
			    t.width(browserwidth);
			    t.height(browserwidth * ratio);
			    t.children().width(browserwidth);
			    t.children().height(browserwidth * ratio);
			}
			if (options.vertical_center == 1){
				t.children().css('left', (browserwidth - t.width())/2);
				t.children().css('top', (browserheight - t.height())/2);
			}
			return false;
		});
	};
	
		//Slideshow Next Slide
	function nextslide() {
		if($.inAnimation) return false;
		else $.inAnimation = true;
	    var options = $.extend($.fn.supersized.defaults, $.fn.supersized.options);
		
		var currentslide = $('#supersized .activeslide');
	    currentslide.removeClass('activeslide');
		
	    if ( currentslide.length == 0 ) currentslide = $('#supersized a:last'); //*******Check if end of array?
			
	    var nextslide =  currentslide.next().length ? currentslide.next() : $('#supersized a:first'); //*******Array
	    var prevslide =  nextslide.prev().length ? nextslide.prev() : $('#supersized a:last'); //*******Array
		
		$('.prevslide').removeClass('prevslide');
		prevslide.addClass('prevslide');
		
		//Get the slide number of new slide
		$.currentSlide + 1 == options.slides.length ? $.currentSlide = 0 : $.currentSlide++;
		
		/**** Image Loading ****/
		//Load next image
		loadSlide=false;
		$.currentSlide == options.slides.length - 1 ? loadSlide = 0 : loadSlide = $.currentSlide + 1;
		imageLink = (options.slides[loadSlide].url) ? "href='" + options.slides[loadSlide].url + "'" : "";
		$("<img/>").attr("src", options.slides[loadSlide].image).appendTo("#supersized").wrap("<a " + imageLink + "></a>");
		
		if (options.thumbnail_navigation == 1){
		//Load previous thumbnail
		$.currentSlide - 1 < 0  ? prevThumb = options.slides.length - 1 : prevThumb = $.currentSlide - 1;
		$('#prevthumb').html($("<img/>").attr("src", options.slides[prevThumb].image));
		
		//Load next thumbnail
		nextThumb = loadSlide;
		$('#nextthumb').html($("<img/>").attr("src", options.slides[nextThumb].image));
		}
		
		currentslide.prev().remove(); //Remove Old Image
		
		/**** End Image Loading ****/
		
		//Display slide counter
		if (options.slide_counter == 1){
		    $('#slidecounter .slidenumber').html($.currentSlide + 1);//**display current slide after checking if last
		}
		
		//Captions
	    if (options.slide_captions == 1){
	    	(options.slides[$.currentSlide].title) ? $('#slidecaption').html(options.slides[$.currentSlide].title) : $('#slidecaption').html('') ; //*******Grab next slide's title from array
	    }
		
	    nextslide.hide().addClass('activeslide')
	    	if (options.transition == 0){
	    		nextslide.show(); $.inAnimation = false;
	    	}
	    	if (options.transition == 1){
	    		nextslide.fadeIn(2000, function(){$.inAnimation = false;});
	    	}
	    	if (options.transition == 2){
	    		nextslide.show("slide", { direction: "up" }, 'slow', function(){$.inAnimation = false;});
	    	}
	    	if (options.transition == 3){
	    		nextslide.show("slide", { direction: "right" }, 'slow', function(){$.inAnimation = false;});
	    	}
	    	if (options.transition == 4){
	    		nextslide.show("slide", { direction: "down" }, 'slow', function(){$.inAnimation = false;});
	    	}
	    	if (options.transition == 5){
	    		nextslide.show("slide", { direction: "left" }, 'slow', function(){$.inAnimation = false;});
	    	}
	    $('#supersized').resizenow();
	}
	
	//Slideshow Previous Slide
	function prevslide() {
		if($.inAnimation) return false;
		else $.inAnimation = true;
		var options = $.extend($.fn.supersized.defaults, $.fn.supersized.options);
	    
	    var currentslide = $('#supersized .activeslide');
	    currentslide.removeClass('activeslide');
		
	    if ( currentslide.length == 0 ) currentslide = $('#supersized a:first');
			
	    var nextslide =  currentslide.prev().length ? currentslide.prev() : $('#supersized a:last'); //****** If equal to total length of array
	    var prevslide =  nextslide.next().length ? nextslide.next() : $('#supersized a:first');
				
		//Get current slide number
		$.currentSlide == 0 ?  $.currentSlide = options.slides.length - 1 : $.currentSlide-- ;
		
		/**** Image Loading ****/
		//Load next image
		loadSlide=false;
		$.currentSlide - 1 < 0  ? loadSlide = options.slides.length - 1 : loadSlide = $.currentSlide - 1;
		imageLink = (options.slides[loadSlide].url) ? "href='" + options.slides[loadSlide].url + "'" : "";
		$("<img/>").attr("src", options.slides[loadSlide].image).prependTo("#supersized").wrap("<a " + imageLink + "></a>");
		
		if (options.thumbnail_navigation == 1){
		//Load previous thumbnail
		prevThumb = loadSlide;
		$('#prevthumb').html($("<img/>").attr("src", options.slides[prevThumb].image));
		
		//Load next thumbnail
		$.currentSlide == options.slides.length - 1 ? nextThumb = 0 : nextThumb = $.currentSlide + 1;
		$('#nextthumb').html($("<img/>").attr("src", options.slides[nextThumb].image));
		}
		
		currentslide.next().remove(); //Remove Old Image
		
		/**** End Image Loading ****/
		
		//Display slide counter
		if (options.slide_counter == 1){
		    $('#slidecounter .slidenumber').html($.currentSlide + 1);
		}
		
		$('.prevslide').removeClass('prevslide');
		prevslide.addClass('prevslide');
		
		//Captions
	    if (options.slide_captions == 1){
	    	(options.slides[$.currentSlide].title) ? $('#slidecaption').html(options.slides[$.currentSlide].title) : $('#slidecaption').html('') ; //*******Grab next slide's title from array
	    }
		
	    nextslide.hide().addClass('activeslide')
	    	if (options.transition == 0){
	    		nextslide.show(); $.inAnimation = false;
	    	}
	    	if (options.transition == 1){
	    		nextslide.fadeIn(750, function(){$.inAnimation = false;});
	    	}
	    	if (options.transition == 2){
	    		nextslide.show("slide", { direction: "down" }, 'slow', function(){$.inAnimation = false;});
	    	}
	    	if (options.transition == 3){
	    		nextslide.show("slide", { direction: "left" }, 'slow', function(){$.inAnimation = false;});
	    	}
	    	if (options.transition == 4){
	    		nextslide.show("slide", { direction: "up" }, 'slow', function(){$.inAnimation = false;});
	    	}
	    	if (options.transition == 5){
	    		nextslide.show("slide", { direction: "right" }, 'slow', function(){$.inAnimation = false;});
	    	}
	    	
	    	$('#supersized').resizenow();//Fix for resize mid-transition
	}
	
	$.fn.supersized.defaults = { 
			startwidth: 4,  
			startheight: 3,
			vertical_center: 1,
			slideshow: 1,
			navigation:1,
			thumbnail_navigation: 0,
			transition: 1, //0-None, 1-Fade, 2-slide top, 3-slide right, 4-slide bottom, 5-slide left
			pause_hover: 0,
			slide_counter: 1,
			slide_captions: 1,
			slide_interval: 5000,
			start_slide: 1
	};
	
})(jQuery);