/*
 * jQuery Simple Tabs 1.0
 *
 * Copyright (c) 2008 Pierre Bertet (pierrebertet.net)
 * Dual licensed under the MIT (MIT-LICENSE.txt)
 * and GPL (GPL-LICENSE.txt) licenses.
 *
 */

/*
TODO :
	- Ajouter une m?thode statique, du style : $.simpletabs("menu", "tabs_container")
*/

(function($){
	
	// TODO
	$.simpletabs = function(){};
	
	$.fn.simpletabs = function(params){
		
		var opts = $.extend({
			hideTags: false,
			activeTab: 1,
			activeClass: "active",
			mouseover: false,
			noresize: false,
			navParent: false,
			framesParent: false,
			activeAnchors: true,
			linksToInsideAnchors: []
		}, params);
		
		// Inside anchors
		opts.linksToInsideAnchors = $(opts.linksToInsideAnchors);
		
		opts.activeTab--;
		
		var currentTab = false;
		
		this.each(function(){
			
			// Selections
			var container = $(this);
			var nav_container = opts.navParent || container.find("> :first-child");
			var frames_container = opts.framesParent || container.find("> :nth-child(2)");
			
			var nav_links = nav_container.find("a[href^=#]");
			var frames = frames_container.find("> *");
			
			// Tabs count == frames count ?
			if (nav_links.length != frames.length){return false;}
			
			// Resize height
			if (!(opts.noresize)){
				$(window).load(function(){
					var maxHeight = 0;
					frames.each(function(){
						var curHeight = $(this).height();
						if (curHeight > maxHeight){maxHeight = curHeight;}
					});
					frames.height(maxHeight);
				});
			}
			
			// Prevent default event
			nav_links.click(function(e){
				e.preventDefault();
			});
			
			// Add frames to link properties
			nav_links.each(function(){
				
				var $nav_link = $(this);
				
				this._linkedFrame = frames.filter($nav_link.attr("href"));
				this._linkedFrame.get(0)._linkedTab = this;
				
				// External links to anchors
				if (opts.activeAnchors){
					$("a[href="+ $nav_link.attr("href") +"]").not(this).click(function(e){
						e.preventDefault();
						$nav_link.click();
						var scrollTop = nav_container.offset().top;
						$("html")[0].scrollTop = scrollTop;
					});
				}
				
			});
			
			// Switch tabs on click
			nav_links.click(function(){
				if (currentTab){
					currentTab.removeClass(opts.activeClass);
					currentTab.get(0)._linkedFrame.hide();
				}
				else {
					frames.filter(":visible").hide();
				}
				
				this._linkedFrame.show();
				$(this).addClass(opts.activeClass);
				currentTab = $(this);
			});
			
			// And on mouseover
			if (opts.mouseover){
				nav_links.hover(function(){ // On mouseover
					$(this).click();
				},function(){});
			}
			
			// Hide tags
			if (opts.hideTags){
				frames.find(opts.hideTags).hide();
			}
			
			// External links to inside anchors
			opts.linksToInsideAnchors.each(function(){
				var $link = $(this);
				frames.each(function(){
					var $frame = $(this);
					if ( $frame.find( $link.attr("href") ).length > 0 ){
						$link.click(function(){
							$($frame.get(0)._linkedTab).click();
						});
					}
				});
			});
			
			if (!!window.location.hash && frames.is(window.location.hash)){
				// Show anchor targeted tab
				nav_links.filter("[href=" + window.location.hash + "]").click();
			}
			else if (!!window.location.hash && opts.linksToInsideAnchors.is('[href='+window.location.hash+']')){
				// Show tab with anchor inside
				opts.linksToInsideAnchors.filter('[href='+window.location.hash+']').click();
			}
			else {
				// Show first tab
				nav_links.filter(":eq(" + opts.activeTab + ")").click();
			}
		});
		
		return this;
	};
})(jQuery);