// EXTENSIONS: quicksearch AND hoverIntent

// Rik Lomas http://rikrikrik.com/jquery/quicksearch/

jQuery(function($) {
	$.fn.quicksearch = function(opt) {
		
		function is_empty(i) {
			return (i === null || i === undefined || i === false) ? true: false;
		}
		function strip_html(input) {
			var regexp = new RegExp(/\<[^\<]+\>/g);
			var output = input.replace(regexp, "");
			output = $.trim(output.toLowerCase().replace(/\n/, '').replace(/\s{2,}/, ' '));
			return output;
		}
		function get_key() {
			var input = strip_html($('input[rel="' + options.randomElement + '"]').val());
			
			if (input.indexOf(' ') === -1) {
				return input;
			} else {
				return input.split(" ");
			}
		}
		function test_key(k, value, type) {
			if (type === "string") {
				return test_key_string(k, value);
			} else {
				return test_key_arr(k, value);
			}
		}
		function test_key_string(k, value) {
			return (value.indexOf(k) > -1);
		}
		function test_key_arr(k, value) {
			for (var i = 0; i < k.length; i++) {
				var test = value.indexOf(k[i]);	
				if (test === -1) {	
					return false;
				}
			}			
			return true;
		}
		function select_element(el) {
			if (options.hideElement === "grandparent") {
				return $(el).parent().parent();
			} else if (options.hideElement === "parent") {
				return $(el).parent();
			} else {
				return $(el);
			}
		}
		function stripe(el) {
			if (doStripe) {
				var i = 0;
				select_element(el).filter(':visible').each(function() {
					for (var j = 0; j < stripeRowLength; j++) {
						if (i === j) {
							$(this).addClass(options.stripeRowClass[i]);
							
						} else
						{
							$(this).removeClass(options.stripeRowClass[j]);
						}
					}
					i = (i + 1) % stripeRowLength;
				});
			}
		}
		function fix_widths(el) {
			$(el).find('td').each(function() {
				$(this).attr('width', parseInt($(this).css('width')));
			});
		}
		function loader(o) {
			if (options.loaderId) {
				var l = $('input[rel="' + options.randomElement + '"]').parent().find('.loader');
				if (o === 'hide') {
					l.hide();
				} else 
				{
					l.show();
				}
			}			
		}
		function place_form() {
			var formPosition = options.position;
			var formAttached = options.attached;

			if (formPosition === 'before') {
				$(formAttached).before(make_form());
			} else if (formPosition === 'prepend') {
				$(formAttached).prepend(make_form());
			} else if (formPosition === 'append') {
				$(formAttached).append(make_form());
			} else {
				$(formAttached).after(make_form());
			}
		}
				
		function make_form_label() {
			if (!is_empty(options.labelText)) {
				return '<label for="' + options.randomElement + '" '+'class="' + options.labelClass + '">' + options.labelText + '</label> ';	
			}
			return '';
		}
		function make_form_input() {
			var val = (!is_empty(options.inputText)) ? options.inputText : ""
			return '<input type="text" value="' + val + '" rel="' + options.randomElement  + '" class="' + options.inputClass + '" id="' + options.randomElement + '" /> ';
		}
		function make_form_loader() {
			if (!is_empty(options.loaderImg)) {
				return '<img src="' + options.loaderImg + '" alt="Loading" id="' + options.loaderId + '" class="' + options.loaderClass + '" />';
			} else {
				return '<span id="' + options.loaderId + '" class="' + options.loaderClass + '">' + options.loaderText + '</span>';
			}
		}
		function make_form() {
			var f = (!options.isFieldset) ? 'form' : 'fieldset';
			return '<' + f + ' action="#" ' + 'id="'+ options.formId + '" ' + 'class="quicksearch">' +
						make_form_label() +	make_form_input() + make_form_loader() +
					'</' + f + '>';
		}
			
		function focus_on_load() {
			$('input[rel="' + options.randomElement + '"]').get(0).focus();
		}
		function toggle_text() {
			$('input[rel="' + options.randomElement + '"]').focus(function() {
				if ($(this).val() === options.inputText) {
					$(this).val('');
				}
			});
			$('input[rel="' + options.randomElement + '"]').blur(function() {
				if ($(this).val() === "") {
					$(this).val(options.inputText);
				}
			});
		}
		function get_cache(el) {
			return $(el).map(function() {
				return strip_html(this.innerHTML);
			});
		}
		function init() {
			place_form();
			if (options.fixWidths) fix_widths(el);
			if (options.focusOnLoad) focus_on_load();
			if (options.inputText != "" && options.inputText != null) toggle_text();
			
			cache = get_cache(el);
			
			stripe(el);
			loader('hide');
		}
		function qs() {
			clearTimeout(timeout);
			timeout = setTimeout(function() {
				loader('show');
				
				setTimeout(function() {
					options.onBefore();
					
					var k = get_key();
					var k_type = (typeof k);
					var i = 0;
					
					k = options.filter(k);
					
					if (k != "") {
						if (typeof score[k] === "undefined") {
							score[k] = new Array();
							cache.each(function(i) {
								if (test_key(k, cache[i], k_type)) {
									score[k][i] = true;
								}
							});
						}
						
						if (score[k].length === 0) {
							select_element(el).hide();
						} else
						{
							$(el).each(function(i) {
								if (score[k][i]) {
									select_element(this).show();
								} else
								{
									select_element(this).hide();
								}
							});
							
						}
					} else
					{
						select_element(el).show();
					}
				
					stripe(el);
				}, options.delay/2);
				
				setTimeout( function() { 
					loader('hide');
				}, options.delay/2);
				
				options.onAfter();
				
			}, options.delay/2);
		}
		var options = $.extend({
			position: 'prepend',
			attached: 'body',
			formId: 'quicksearch',
			labelText: 'Quick Search',
			labelClass: 'qs_label',
			inputText: null,
			inputClass: 'qs_input',
			loaderId: 'loader',
			loaderClass: 'loader',
			loaderImg: null,
			loaderText: 'Loading...',
			stripeRowClass: null,
			hideElement: null,
			delay: 500,
			focusOnLoad: false,
			onBefore: function() { },
			onAfter: function() { },
			filter: function(i) { 
				return i;
			},
			randomElement: 'qs' + Math.floor(Math.random() * 1000000),
			isFieldset: false,
			fixWidths: false
		}, opt);
		
		var timeout;
		var score = {};
		var stripeRowLength = (!is_empty(options.stripeRowClass)) ? options.stripeRowClass.length : 0;
		var doStripe = (stripeRowLength > 0) ? true : false;
		var el = this;
		var cache;
		var selector = $(this).selector;
		
		$.fn.extend({
			reset_cache: function() {
				el = $(selector);
				cache = get_cache(el);
			}
		});
		
		init();
		
		$('input[rel="' + options.randomElement + '"]').keydown(function(e) {
			var keycode = e.keyCode;
			if (!(keycode === 9 || keycode === 13 || keycode === 16 || keycode === 17 || keycode === 18 || keycode === 38 || keycode === 40 || keycode === 224)) {
				qs();
			}
		});
		
		$('form.quicksearch, fieldset.quicksearch').submit( function() { return false; });
		
		return this;
	};
});


/**
* hoverIntent r5 // 2007.03.27 // jQuery 1.1.2+
* <http://cherne.net/brian/resources/jquery.hoverIntent.html>
* 
* @param  f  onMouseOver function || An object with configuration options
* @param  g  onMouseOut function  || Nothing (use configuration options object)
* @author    Brian Cherne <brian@cherne.net>
*/
(function($){$.fn.hoverIntent=function(f,g){var cfg={sensitivity:7,interval:100,timeout:0};cfg=$.extend(cfg,g?{over:f,out:g}:f);var cX,cY,pX,pY;var track=function(ev){cX=ev.pageX;cY=ev.pageY;};var compare=function(ev,ob){ob.hoverIntent_t=clearTimeout(ob.hoverIntent_t);if((Math.abs(pX-cX)+Math.abs(pY-cY))<cfg.sensitivity){$(ob).unbind("mousemove",track);ob.hoverIntent_s=1;return cfg.over.apply(ob,[ev]);}else{pX=cX;pY=cY;ob.hoverIntent_t=setTimeout(function(){compare(ev,ob);},cfg.interval);}};var delay=function(ev,ob){ob.hoverIntent_t=clearTimeout(ob.hoverIntent_t);ob.hoverIntent_s=0;return cfg.out.apply(ob,[ev]);};var handleHover=function(e){var p=(e.type=="mouseover"?e.fromElement:e.toElement)||e.relatedTarget;while(p&&p!=this){try{p=p.parentNode;}catch(e){p=this;}}if(p==this){return false;}var ev=jQuery.extend({},e);var ob=this;if(ob.hoverIntent_t){ob.hoverIntent_t=clearTimeout(ob.hoverIntent_t);}if(e.type=="mouseover"){pX=ev.pageX;pY=ev.pageY;$(ob).bind("mousemove",track);if(ob.hoverIntent_s!=1){ob.hoverIntent_t=setTimeout(function(){compare(ev,ob);},cfg.interval);}}else{$(ob).unbind("mousemove",track);if(ob.hoverIntent_s==1){ob.hoverIntent_t=setTimeout(function(){delay(ev,ob);},cfg.timeout);}}};return this.mouseover(handleHover).mouseout(handleHover);};})(jQuery);