/*
	jQuery Coda-Slider v2.0 - http://www.ndoherty.biz/coda-slider
	Copyright (c) 2009 Niall Doherty
	This plugin available for use in all personal or commercial projects under both MIT and GPL licenses.
*/

jQuery(document).ready(function($) {
	$(function(){
		// Remove the coda-slider-no-js class from the body
		$("body").removeClass("coda-slider-no-js");
		// Preloader
		$(".coda-slider").children('.panel').hide().end().prepend('<p class="loading">Loading...<br /><img src="images/ajax-loader.gif" alt="loading..." /></p>');
	});
});

jQuery(document).ready(function($) {
	var sliderCount = 1;
	
	$.fn.codaSlider = function(settings) {
	
		settings = $.extend({
			autoHeight: true,
			autoHeightEaseDuration: 1000,
			autoHeightEaseFunction: "easeInOutExpo",
			autoSlide: true,
			autoSlideInterval: 8000,
			autoSlideStopWhenClicked: true,
			crossLinking: true,
			dynamicArrows: true,
			dynamicArrowLeftText: "",
			dynamicArrowRightText: "",
			dynamicTabs: false,
			dynamicTabsAlign: "center",
			dynamicTabsPosition: "top",
			externalTriggerSelector: "a.xtrig",
			firstPanelToLoad: 1,
			panelTitleSelector: "h2.title",
			slideEaseDuration: 1000,
			slideEaseFunction: "easeInOutExpo"
		}, settings);
		
		return this.each(function(){
			
			// Uncomment the line below to test your preloader
			// alert("Testing preloader");
			
			var slider = $(this);
			
			// If we need arrows
			if (settings.dynamicArrows) {
				slider.parent().addClass("arrows");
				slider.before('<div class="coda-nav-left" id="coda-nav-left-' + sliderCount + '"><a href="#">' + settings.dynamicArrowLeftText + '</a></div>');
				slider.after('<div class="coda-nav-right" id="coda-nav-right-' + sliderCount + '"><a href="#">' + settings.dynamicArrowRightText + '</a></div>');
			};
			
			var panelWidth = slider.find(".panel").width();
			var panelCount = slider.find(".panel").size();
			var panelContainerWidth = panelWidth*panelCount;
			var navClicks = 0; // Used if autoSlideStopWhenClicked = true
			
			// Surround the collection of panel divs with a container div (wide enough for all panels to be lined up end-to-end)
			$('.panel', slider).wrapAll('<div class="panel-container"></div>');
			// Specify the width of the container div (wide enough for all panels to be lined up end-to-end)
			$(".panel-container", slider).css({ width: panelContainerWidth });
			
			// Specify the current panel.
			// If the loaded URL has a hash (cross-linking), we're going to use that hash to give the slider a specific starting position...
			if (settings.crossLinking && location.hash && parseInt(location.hash.slice(1)) <= panelCount) {
				var currentPanel = parseInt(location.hash.slice(1));
				var offset = - (panelWidth*(currentPanel - 1));
				$('.panel-container', slider).css({ marginLeft: offset });
			// If that's not the case, check to see if we're supposed to load a panel other than Panel 1 initially...
			} else if (settings.firstPanelToLoad != 1 && settings.firstPanelToLoad <= panelCount) { 
				var currentPanel = settings.firstPanelToLoad;
				var offset = - (panelWidth*(currentPanel - 1));
				$('.panel-container', slider).css({ marginLeft: offset });
			// Otherwise, we'll just set the current panel to 1...
			} else { 
				var currentPanel = 1;
			};
				
			// Left arrow click
			$("#coda-nav-left-" + sliderCount + " a").click(function(){
				navClicks++;
				if (currentPanel == 1) {
					offset = - (panelWidth*(panelCount - 1));
					alterPanelHeight(panelCount - 1);
					currentPanel = panelCount;
					slider.siblings('.coda-nav').find('a.current').removeClass('current').parents('ul').find('li:last a').addClass('current');
				} else {
					currentPanel -= 1;
					alterPanelHeight(currentPanel - 1);
					offset = - (panelWidth*(currentPanel - 1));
					slider.siblings('.coda-nav').find('a.current').removeClass('current').parent().prev().find('a').addClass('current');
				};
				$('.panel-container', slider).animate({ marginLeft: offset }, settings.slideEaseDuration, settings.slideEaseFunction);
				if (settings.crossLinking) { location.hash = currentPanel }; // Change the URL hash (cross-linking)
				return false;
			});
				
			// Right arrow click
			$('#coda-nav-right-' + sliderCount + ' a').click(function(){
				navClicks++;
				if (currentPanel == panelCount) {
					offset = 0;
					currentPanel = 1;
					alterPanelHeight(0);
					slider.siblings('.coda-nav').find('a.current').removeClass('current').parents('ul').find('a:eq(0)').addClass('current');
				} else {
					offset = - (panelWidth*currentPanel);
					alterPanelHeight(currentPanel);
					currentPanel += 1;
					slider.siblings('.coda-nav').find('a.current').removeClass('current').parent().next().find('a').addClass('current');
				};
				$('.panel-container', slider).animate({ marginLeft: offset }, settings.slideEaseDuration, settings.slideEaseFunction);
				if (settings.crossLinking) { location.hash = currentPanel }; // Change the URL hash (cross-linking)
				return false;
			});
			
			// If we need a dynamic menu
			if (settings.dynamicTabs) {
				var dynamicTabs = '<div class="coda-nav" id="coda-nav-' + sliderCount + '"><ul></ul></div>';
				switch (settings.dynamicTabsPosition) {
					case "bottom":
						slider.parent().append(dynamicTabs);
						break;
					default:
						slider.parent().prepend(dynamicTabs);
						break;
				};
				ul = $('#coda-nav-' + sliderCount + ' ul');
				// Create the nav items
				$('.panel', slider).each(function(n) {
					ul.append('<li class="tab' + (n+1) + '"><a href="#' + (n+1) + '">' + $(this).find(settings.panelTitleSelector).text() + '</a></li>');												
				});
				navContainerWidth = slider.width() + slider.siblings('.coda-nav-left').width() + slider.siblings('.coda-nav-right').width();
				ul.parent().css({ width: navContainerWidth });
				switch (settings.dynamicTabsAlign) {
					case "center":
						ul.css({ width: ($("li", ul).width() + 2) * panelCount });
						break;
					case "right":
						ul.css({ float: 'right' });
						break;
				};
			};
				
			// If we need a tabbed nav
			$('#coda-nav-' + sliderCount + ' a').each(function(z) {
				// What happens when a nav link is clicked
				$(this).bind("click", function() {
					navClicks++;
					$(this).addClass('current').parents('ul').find('a').not($(this)).removeClass('current');
					offset = - (panelWidth*z);
					alterPanelHeight(z);
					currentPanel = z + 1;
					$('.panel-container', slider).animate({ marginLeft: offset }, settings.slideEaseDuration, settings.slideEaseFunction);
					if (!settings.crossLinking) { return false }; // Don't change the URL hash unless cross-linking is specified
				});
			});
			
			// External triggers (anywhere on the page)
			$(settings.externalTriggerSelector).each(function() {
				// Make sure this only affects the targeted slider
				if (sliderCount == parseInt($(this).attr("rel").slice(12))) {
					$(this).bind("click", function() {
						navClicks++;
						targetPanel = parseInt($(this).attr("href").slice(1));
						offset = - (panelWidth*(targetPanel - 1));
						alterPanelHeight(targetPanel - 1);
						currentPanel = targetPanel;
						// Switch the current tab:
						slider.siblings('.coda-nav').find('a').removeClass('current').parents('ul').find('li:eq(' + (targetPanel - 1) + ') a').addClass('current');
						// Slide
						$('.panel-container', slider).animate({ marginLeft: offset }, settings.slideEaseDuration, settings.slideEaseFunction);
						if (!settings.crossLinking) { return false }; // Don't change the URL hash unless cross-linking is specified
					});
				};
			});
				
			// Specify which tab is initially set to "current". Depends on if the loaded URL had a hash or not (cross-linking).
			if (settings.crossLinking && location.hash && parseInt(location.hash.slice(1)) <= panelCount) {
				$("#coda-nav-" + sliderCount + " a:eq(" + (location.hash.slice(1) - 1) + ")").addClass("current");
			// If there's no cross-linking, check to see if we're supposed to load a panel other than Panel 1 initially...
			} else if (settings.firstPanelToLoad != 1 && settings.firstPanelToLoad <= panelCount) {
				$("#coda-nav-" + sliderCount + " a:eq(" + (settings.firstPanelToLoad - 1) + ")").addClass("current");
			// Otherwise we must be loading Panel 1, so make the first tab the current one.
			} else {
				$("#coda-nav-" + sliderCount + " a:eq(0)").addClass("current");
			};
			
			// Set the height of the first panel
			if (settings.autoHeight) {
				panelHeight = $('.panel:eq(' + (currentPanel - 1) + ')', slider).height();
				slider.css({ height: panelHeight });
			};
			
			// Trigger autoSlide
			if (settings.autoSlide) {
				slider.ready(function() {
					setTimeout(autoSlide,settings.autoSlideInterval);
				});
			};
			
			function alterPanelHeight(x) {
				if (settings.autoHeight) {
					panelHeight = $('.panel:eq(' + x + ')', slider).height()
					slider.animate({ height: panelHeight }, settings.autoHeightEaseDuration, settings.autoHeightEaseFunction);
				};
			};
			
			function autoSlide() {
				if (navClicks == 0 || !settings.autoSlideStopWhenClicked) {
					if (currentPanel == panelCount) {
						var offset = 0;
						currentPanel = 1;
					} else {
						var offset = - (panelWidth*currentPanel);
						currentPanel += 1;
					};
					alterPanelHeight(currentPanel - 1);
					// Switch the current tab:
					slider.siblings('.coda-nav').find('a').removeClass('current').parents('ul').find('li:eq(' + (currentPanel - 1) + ') a').addClass('current');
					// Slide:
					$('.panel-container', slider).animate({ marginLeft: offset }, settings.slideEaseDuration, settings.slideEaseFunction);
					setTimeout(autoSlide,settings.autoSlideInterval);
				};
			};
			
			// Kill the preloader
			$('.panel', slider).show().end().find("p.loading").remove();
			slider.removeClass("preload");
			
			sliderCount++;
			
		});
	};
});

jQuery(document).ready(function($) {
	$().ready(function() {
		$('#slider').codaSlider();
	});
});