bgneal@45: /*
bgneal@45:  * Autocomplete - jQuery plugin 1.0.2
bgneal@45:  *
bgneal@45:  * Copyright (c) 2007 Dylan Verheul, Dan G. Switzer, Anjesh Tuladhar, Jörn Zaefferer
bgneal@45:  *
bgneal@45:  * Dual licensed under the MIT and GPL licenses:
bgneal@45:  *   http://www.opensource.org/licenses/mit-license.php
bgneal@45:  *   http://www.gnu.org/licenses/gpl.html
bgneal@45:  *
bgneal@45:  * Revision: $Id: jquery.autocomplete.js 5747 2008-06-25 18:30:55Z joern.zaefferer $
bgneal@45:  *
bgneal@45:  */
bgneal@45: 
bgneal@45: ;(function($) {
bgneal@45: 	
bgneal@45: $.fn.extend({
bgneal@45: 	autocomplete: function(urlOrData, options) {
bgneal@45: 		var isUrl = typeof urlOrData == "string";
bgneal@45: 		options = $.extend({}, $.Autocompleter.defaults, {
bgneal@45: 			url: isUrl ? urlOrData : null,
bgneal@45: 			data: isUrl ? null : urlOrData,
bgneal@45: 			delay: isUrl ? $.Autocompleter.defaults.delay : 10,
bgneal@45: 			max: options && !options.scroll ? 10 : 150
bgneal@45: 		}, options);
bgneal@45: 		
bgneal@45: 		// if highlight is set to false, replace it with a do-nothing function
bgneal@45: 		options.highlight = options.highlight || function(value) { return value; };
bgneal@45: 		
bgneal@45: 		// if the formatMatch option is not specified, then use formatItem for backwards compatibility
bgneal@45: 		options.formatMatch = options.formatMatch || options.formatItem;
bgneal@45: 		
bgneal@45: 		return this.each(function() {
bgneal@45: 			new $.Autocompleter(this, options);
bgneal@45: 		});
bgneal@45: 	},
bgneal@45: 	result: function(handler) {
bgneal@45: 		return this.bind("result", handler);
bgneal@45: 	},
bgneal@45: 	search: function(handler) {
bgneal@45: 		return this.trigger("search", [handler]);
bgneal@45: 	},
bgneal@45: 	flushCache: function() {
bgneal@45: 		return this.trigger("flushCache");
bgneal@45: 	},
bgneal@45: 	setOptions: function(options){
bgneal@45: 		return this.trigger("setOptions", [options]);
bgneal@45: 	},
bgneal@45: 	unautocomplete: function() {
bgneal@45: 		return this.trigger("unautocomplete");
bgneal@45: 	}
bgneal@45: });
bgneal@45: 
bgneal@45: $.Autocompleter = function(input, options) {
bgneal@45: 
bgneal@45: 	var KEY = {
bgneal@45: 		UP: 38,
bgneal@45: 		DOWN: 40,
bgneal@45: 		DEL: 46,
bgneal@45: 		TAB: 9,
bgneal@45: 		RETURN: 13,
bgneal@45: 		ESC: 27,
bgneal@45: 		COMMA: 188,
bgneal@45: 		PAGEUP: 33,
bgneal@45: 		PAGEDOWN: 34,
bgneal@45: 		BACKSPACE: 8
bgneal@45: 	};
bgneal@45: 
bgneal@45: 	// Create $ object for input element
bgneal@45: 	var $input = $(input).attr("autocomplete", "off").addClass(options.inputClass);
bgneal@45: 
bgneal@45: 	var timeout;
bgneal@45: 	var previousValue = "";
bgneal@45: 	var cache = $.Autocompleter.Cache(options);
bgneal@45: 	var hasFocus = 0;
bgneal@45: 	var lastKeyPressCode;
bgneal@45: 	var config = {
bgneal@45: 		mouseDownOnSelect: false
bgneal@45: 	};
bgneal@45: 	var select = $.Autocompleter.Select(options, input, selectCurrent, config);
bgneal@45: 	
bgneal@45: 	var blockSubmit;
bgneal@45: 	
bgneal@45: 	// prevent form submit in opera when selecting with return key
bgneal@45: 	$.browser.opera && $(input.form).bind("submit.autocomplete", function() {
bgneal@45: 		if (blockSubmit) {
bgneal@45: 			blockSubmit = false;
bgneal@45: 			return false;
bgneal@45: 		}
bgneal@45: 	});
bgneal@45: 	
bgneal@45: 	// only opera doesn't trigger keydown multiple times while pressed, others don't work with keypress at all
bgneal@45: 	$input.bind(($.browser.opera ? "keypress" : "keydown") + ".autocomplete", function(event) {
bgneal@45: 		// track last key pressed
bgneal@45: 		lastKeyPressCode = event.keyCode;
bgneal@45: 		switch(event.keyCode) {
bgneal@45: 		
bgneal@45: 			case KEY.UP:
bgneal@45: 				event.preventDefault();
bgneal@45: 				if ( select.visible() ) {
bgneal@45: 					select.prev();
bgneal@45: 				} else {
bgneal@45: 					onChange(0, true);
bgneal@45: 				}
bgneal@45: 				break;
bgneal@45: 				
bgneal@45: 			case KEY.DOWN:
bgneal@45: 				event.preventDefault();
bgneal@45: 				if ( select.visible() ) {
bgneal@45: 					select.next();
bgneal@45: 				} else {
bgneal@45: 					onChange(0, true);
bgneal@45: 				}
bgneal@45: 				break;
bgneal@45: 				
bgneal@45: 			case KEY.PAGEUP:
bgneal@45: 				event.preventDefault();
bgneal@45: 				if ( select.visible() ) {
bgneal@45: 					select.pageUp();
bgneal@45: 				} else {
bgneal@45: 					onChange(0, true);
bgneal@45: 				}
bgneal@45: 				break;
bgneal@45: 				
bgneal@45: 			case KEY.PAGEDOWN:
bgneal@45: 				event.preventDefault();
bgneal@45: 				if ( select.visible() ) {
bgneal@45: 					select.pageDown();
bgneal@45: 				} else {
bgneal@45: 					onChange(0, true);
bgneal@45: 				}
bgneal@45: 				break;
bgneal@45: 			
bgneal@45: 			// matches also semicolon
bgneal@45: 			case options.multiple && $.trim(options.multipleSeparator) == "," && KEY.COMMA:
bgneal@45: 			case KEY.TAB:
bgneal@45: 			case KEY.RETURN:
bgneal@45: 				if( selectCurrent() ) {
bgneal@45: 					// stop default to prevent a form submit, Opera needs special handling
bgneal@45: 					event.preventDefault();
bgneal@45: 					blockSubmit = true;
bgneal@45: 					return false;
bgneal@45: 				}
bgneal@45: 				break;
bgneal@45: 				
bgneal@45: 			case KEY.ESC:
bgneal@45: 				select.hide();
bgneal@45: 				break;
bgneal@45: 				
bgneal@45: 			default:
bgneal@45: 				clearTimeout(timeout);
bgneal@45: 				timeout = setTimeout(onChange, options.delay);
bgneal@45: 				break;
bgneal@45: 		}
bgneal@45: 	}).focus(function(){
bgneal@45: 		// track whether the field has focus, we shouldn't process any
bgneal@45: 		// results if the field no longer has focus
bgneal@45: 		hasFocus++;
bgneal@45: 	}).blur(function() {
bgneal@45: 		hasFocus = 0;
bgneal@45: 		if (!config.mouseDownOnSelect) {
bgneal@45: 			hideResults();
bgneal@45: 		}
bgneal@45: 	}).click(function() {
bgneal@45: 		// show select when clicking in a focused field
bgneal@45: 		if ( hasFocus++ > 1 && !select.visible() ) {
bgneal@45: 			onChange(0, true);
bgneal@45: 		}
bgneal@45: 	}).bind("search", function() {
bgneal@45: 		// TODO why not just specifying both arguments?
bgneal@45: 		var fn = (arguments.length > 1) ? arguments[1] : null;
bgneal@45: 		function findValueCallback(q, data) {
bgneal@45: 			var result;
bgneal@45: 			if( data && data.length ) {
bgneal@45: 				for (var i=0; i < data.length; i++) {
bgneal@45: 					if( data[i].result.toLowerCase() == q.toLowerCase() ) {
bgneal@45: 						result = data[i];
bgneal@45: 						break;
bgneal@45: 					}
bgneal@45: 				}
bgneal@45: 			}
bgneal@45: 			if( typeof fn == "function" ) fn(result);
bgneal@45: 			else $input.trigger("result", result && [result.data, result.value]);
bgneal@45: 		}
bgneal@45: 		$.each(trimWords($input.val()), function(i, value) {
bgneal@45: 			request(value, findValueCallback, findValueCallback);
bgneal@45: 		});
bgneal@45: 	}).bind("flushCache", function() {
bgneal@45: 		cache.flush();
bgneal@45: 	}).bind("setOptions", function() {
bgneal@45: 		$.extend(options, arguments[1]);
bgneal@45: 		// if we've updated the data, repopulate
bgneal@45: 		if ( "data" in arguments[1] )
bgneal@45: 			cache.populate();
bgneal@45: 	}).bind("unautocomplete", function() {
bgneal@45: 		select.unbind();
bgneal@45: 		$input.unbind();
bgneal@45: 		$(input.form).unbind(".autocomplete");
bgneal@45: 	});
bgneal@45: 	
bgneal@45: 	
bgneal@45: 	function selectCurrent() {
bgneal@45: 		var selected = select.selected();
bgneal@45: 		if( !selected )
bgneal@45: 			return false;
bgneal@45: 		
bgneal@45: 		var v = selected.result;
bgneal@45: 		previousValue = v;
bgneal@45: 		
bgneal@45: 		if ( options.multiple ) {
bgneal@45: 			var words = trimWords($input.val());
bgneal@45: 			if ( words.length > 1 ) {
bgneal@45: 				v = words.slice(0, words.length - 1).join( options.multipleSeparator ) + options.multipleSeparator + v;
bgneal@45: 			}
bgneal@45: 			v += options.multipleSeparator;
bgneal@45: 		}
bgneal@45: 		
bgneal@45: 		$input.val(v);
bgneal@45: 		hideResultsNow();
bgneal@45: 		$input.trigger("result", [selected.data, selected.value]);
bgneal@45: 		return true;
bgneal@45: 	}
bgneal@45: 	
bgneal@45: 	function onChange(crap, skipPrevCheck) {
bgneal@45: 		if( lastKeyPressCode == KEY.DEL ) {
bgneal@45: 			select.hide();
bgneal@45: 			return;
bgneal@45: 		}
bgneal@45: 		
bgneal@45: 		var currentValue = $input.val();
bgneal@45: 		
bgneal@45: 		if ( !skipPrevCheck && currentValue == previousValue )
bgneal@45: 			return;
bgneal@45: 		
bgneal@45: 		previousValue = currentValue;
bgneal@45: 		
bgneal@45: 		currentValue = lastWord(currentValue);
bgneal@45: 		if ( currentValue.length >= options.minChars) {
bgneal@45: 			$input.addClass(options.loadingClass);
bgneal@45: 			if (!options.matchCase)
bgneal@45: 				currentValue = currentValue.toLowerCase();
bgneal@45: 			request(currentValue, receiveData, hideResultsNow);
bgneal@45: 		} else {
bgneal@45: 			stopLoading();
bgneal@45: 			select.hide();
bgneal@45: 		}
bgneal@45: 	};
bgneal@45: 	
bgneal@45: 	function trimWords(value) {
bgneal@45: 		if ( !value ) {
bgneal@45: 			return [""];
bgneal@45: 		}
bgneal@45: 		var words = value.split( options.multipleSeparator );
bgneal@45: 		var result = [];
bgneal@45: 		$.each(words, function(i, value) {
bgneal@45: 			if ( $.trim(value) )
bgneal@45: 				result[i] = $.trim(value);
bgneal@45: 		});
bgneal@45: 		return result;
bgneal@45: 	}
bgneal@45: 	
bgneal@45: 	function lastWord(value) {
bgneal@45: 		if ( !options.multiple )
bgneal@45: 			return value;
bgneal@45: 		var words = trimWords(value);
bgneal@45: 		return words[words.length - 1];
bgneal@45: 	}
bgneal@45: 	
bgneal@45: 	// fills in the input box w/the first match (assumed to be the best match)
bgneal@45: 	// q: the term entered
bgneal@45: 	// sValue: the first matching result
bgneal@45: 	function autoFill(q, sValue){
bgneal@45: 		// autofill in the complete box w/the first match as long as the user hasn't entered in more data
bgneal@45: 		// if the last user key pressed was backspace, don't autofill
bgneal@45: 		if( options.autoFill && (lastWord($input.val()).toLowerCase() == q.toLowerCase()) && lastKeyPressCode != KEY.BACKSPACE ) {
bgneal@45: 			// fill in the value (keep the case the user has typed)
bgneal@45: 			$input.val($input.val() + sValue.substring(lastWord(previousValue).length));
bgneal@45: 			// select the portion of the value not typed by the user (so the next character will erase)
bgneal@45: 			$.Autocompleter.Selection(input, previousValue.length, previousValue.length + sValue.length);
bgneal@45: 		}
bgneal@45: 	};
bgneal@45: 
bgneal@45: 	function hideResults() {
bgneal@45: 		clearTimeout(timeout);
bgneal@45: 		timeout = setTimeout(hideResultsNow, 200);
bgneal@45: 	};
bgneal@45: 
bgneal@45: 	function hideResultsNow() {
bgneal@45: 		var wasVisible = select.visible();
bgneal@45: 		select.hide();
bgneal@45: 		clearTimeout(timeout);
bgneal@45: 		stopLoading();
bgneal@45: 		if (options.mustMatch) {
bgneal@45: 			// call search and run callback
bgneal@45: 			$input.search(
bgneal@45: 				function (result){
bgneal@45: 					// if no value found, clear the input box
bgneal@45: 					if( !result ) {
bgneal@45: 						if (options.multiple) {
bgneal@45: 							var words = trimWords($input.val()).slice(0, -1);
bgneal@45: 							$input.val( words.join(options.multipleSeparator) + (words.length ? options.multipleSeparator : "") );
bgneal@45: 						}
bgneal@45: 						else
bgneal@45: 							$input.val( "" );
bgneal@45: 					}
bgneal@45: 				}
bgneal@45: 			);
bgneal@45: 		}
bgneal@45: 		if (wasVisible)
bgneal@45: 			// position cursor at end of input field
bgneal@45: 			$.Autocompleter.Selection(input, input.value.length, input.value.length);
bgneal@45: 	};
bgneal@45: 
bgneal@45: 	function receiveData(q, data) {
bgneal@45: 		if ( data && data.length && hasFocus ) {
bgneal@45: 			stopLoading();
bgneal@45: 			select.display(data, q);
bgneal@45: 			autoFill(q, data[0].value);
bgneal@45: 			select.show();
bgneal@45: 		} else {
bgneal@45: 			hideResultsNow();
bgneal@45: 		}
bgneal@45: 	};
bgneal@45: 
bgneal@45: 	function request(term, success, failure) {
bgneal@45: 		if (!options.matchCase)
bgneal@45: 			term = term.toLowerCase();
bgneal@45: 		var data = cache.load(term);
bgneal@45: 		// recieve the cached data
bgneal@45: 		if (data && data.length) {
bgneal@45: 			success(term, data);
bgneal@45: 		// if an AJAX url has been supplied, try loading the data now
bgneal@45: 		} else if( (typeof options.url == "string") && (options.url.length > 0) ){
bgneal@45: 			
bgneal@45: 			var extraParams = {
bgneal@45: 				timestamp: +new Date()
bgneal@45: 			};
bgneal@45: 			$.each(options.extraParams, function(key, param) {
bgneal@45: 				extraParams[key] = typeof param == "function" ? param() : param;
bgneal@45: 			});
bgneal@45: 			
bgneal@45: 			$.ajax({
bgneal@45: 				// try to leverage ajaxQueue plugin to abort previous requests
bgneal@45: 				mode: "abort",
bgneal@45: 				// limit abortion to this input
bgneal@45: 				port: "autocomplete" + input.name,
bgneal@45: 				dataType: options.dataType,
bgneal@45: 				url: options.url,
bgneal@45: 				data: $.extend({
bgneal@45: 					q: lastWord(term),
bgneal@45: 					limit: options.max
bgneal@45: 				}, extraParams),
bgneal@45: 				success: function(data) {
bgneal@45: 					var parsed = options.parse && options.parse(data) || parse(data);
bgneal@45: 					cache.add(term, parsed);
bgneal@45: 					success(term, parsed);
bgneal@45: 				}
bgneal@45: 			});
bgneal@45: 		} else {
bgneal@45: 			// if we have a failure, we need to empty the list -- this prevents the the [TAB] key from selecting the last successful match
bgneal@45: 			select.emptyList();
bgneal@45: 			failure(term);
bgneal@45: 		}
bgneal@45: 	};
bgneal@45: 	
bgneal@45: 	function parse(data) {
bgneal@45: 		var parsed = [];
bgneal@45: 		var rows = data.split("\n");
bgneal@45: 		for (var i=0; i < rows.length; i++) {
bgneal@45: 			var row = $.trim(rows[i]);
bgneal@45: 			if (row) {
bgneal@45: 				row = row.split("|");
bgneal@45: 				parsed[parsed.length] = {
bgneal@45: 					data: row,
bgneal@45: 					value: row[0],
bgneal@45: 					result: options.formatResult && options.formatResult(row, row[0]) || row[0]
bgneal@45: 				};
bgneal@45: 			}
bgneal@45: 		}
bgneal@45: 		return parsed;
bgneal@45: 	};
bgneal@45: 
bgneal@45: 	function stopLoading() {
bgneal@45: 		$input.removeClass(options.loadingClass);
bgneal@45: 	};
bgneal@45: 
bgneal@45: };
bgneal@45: 
bgneal@45: $.Autocompleter.defaults = {
bgneal@45: 	inputClass: "ac_input",
bgneal@45: 	resultsClass: "ac_results",
bgneal@45: 	loadingClass: "ac_loading",
bgneal@45: 	minChars: 1,
bgneal@45: 	delay: 400,
bgneal@45: 	matchCase: false,
bgneal@45: 	matchSubset: true,
bgneal@45: 	matchContains: false,
bgneal@45: 	cacheLength: 10,
bgneal@45: 	max: 100,
bgneal@45: 	mustMatch: false,
bgneal@45: 	extraParams: {},
bgneal@45: 	selectFirst: true,
bgneal@45: 	formatItem: function(row) { return row[0]; },
bgneal@45: 	formatMatch: null,
bgneal@45: 	autoFill: false,
bgneal@45: 	width: 0,
bgneal@45: 	multiple: false,
bgneal@45: 	multipleSeparator: ", ",
bgneal@45: 	highlight: function(value, term) {
bgneal@45: 		return value.replace(new RegExp("(?![^&;]+;)(?!<[^<>]*)(" + term.replace(/([\^\$\(\)\[\]\{\}\*\.\+\?\|\\])/gi, "\\$1") + ")(?![^<>]*>)(?![^&;]+;)", "gi"), "<strong>$1</strong>");
bgneal@45: 	},
bgneal@45:     scroll: true,
bgneal@45:     scrollHeight: 180
bgneal@45: };
bgneal@45: 
bgneal@45: $.Autocompleter.Cache = function(options) {
bgneal@45: 
bgneal@45: 	var data = {};
bgneal@45: 	var length = 0;
bgneal@45: 	
bgneal@45: 	function matchSubset(s, sub) {
bgneal@45: 		if (!options.matchCase) 
bgneal@45: 			s = s.toLowerCase();
bgneal@45: 		var i = s.indexOf(sub);
bgneal@45: 		if (i == -1) return false;
bgneal@45: 		return i == 0 || options.matchContains;
bgneal@45: 	};
bgneal@45: 	
bgneal@45: 	function add(q, value) {
bgneal@45: 		if (length > options.cacheLength){
bgneal@45: 			flush();
bgneal@45: 		}
bgneal@45: 		if (!data[q]){ 
bgneal@45: 			length++;
bgneal@45: 		}
bgneal@45: 		data[q] = value;
bgneal@45: 	}
bgneal@45: 	
bgneal@45: 	function populate(){
bgneal@45: 		if( !options.data ) return false;
bgneal@45: 		// track the matches
bgneal@45: 		var stMatchSets = {},
bgneal@45: 			nullData = 0;
bgneal@45: 
bgneal@45: 		// no url was specified, we need to adjust the cache length to make sure it fits the local data store
bgneal@45: 		if( !options.url ) options.cacheLength = 1;
bgneal@45: 		
bgneal@45: 		// track all options for minChars = 0
bgneal@45: 		stMatchSets[""] = [];
bgneal@45: 		
bgneal@45: 		// loop through the array and create a lookup structure
bgneal@45: 		for ( var i = 0, ol = options.data.length; i < ol; i++ ) {
bgneal@45: 			var rawValue = options.data[i];
bgneal@45: 			// if rawValue is a string, make an array otherwise just reference the array
bgneal@45: 			rawValue = (typeof rawValue == "string") ? [rawValue] : rawValue;
bgneal@45: 			
bgneal@45: 			var value = options.formatMatch(rawValue, i+1, options.data.length);
bgneal@45: 			if ( value === false )
bgneal@45: 				continue;
bgneal@45: 				
bgneal@45: 			var firstChar = value.charAt(0).toLowerCase();
bgneal@45: 			// if no lookup array for this character exists, look it up now
bgneal@45: 			if( !stMatchSets[firstChar] ) 
bgneal@45: 				stMatchSets[firstChar] = [];
bgneal@45: 
bgneal@45: 			// if the match is a string
bgneal@45: 			var row = {
bgneal@45: 				value: value,
bgneal@45: 				data: rawValue,
bgneal@45: 				result: options.formatResult && options.formatResult(rawValue) || value
bgneal@45: 			};
bgneal@45: 			
bgneal@45: 			// push the current match into the set list
bgneal@45: 			stMatchSets[firstChar].push(row);
bgneal@45: 
bgneal@45: 			// keep track of minChars zero items
bgneal@45: 			if ( nullData++ < options.max ) {
bgneal@45: 				stMatchSets[""].push(row);
bgneal@45: 			}
bgneal@45: 		};
bgneal@45: 
bgneal@45: 		// add the data items to the cache
bgneal@45: 		$.each(stMatchSets, function(i, value) {
bgneal@45: 			// increase the cache size
bgneal@45: 			options.cacheLength++;
bgneal@45: 			// add to the cache
bgneal@45: 			add(i, value);
bgneal@45: 		});
bgneal@45: 	}
bgneal@45: 	
bgneal@45: 	// populate any existing data
bgneal@45: 	setTimeout(populate, 25);
bgneal@45: 	
bgneal@45: 	function flush(){
bgneal@45: 		data = {};
bgneal@45: 		length = 0;
bgneal@45: 	}
bgneal@45: 	
bgneal@45: 	return {
bgneal@45: 		flush: flush,
bgneal@45: 		add: add,
bgneal@45: 		populate: populate,
bgneal@45: 		load: function(q) {
bgneal@45: 			if (!options.cacheLength || !length)
bgneal@45: 				return null;
bgneal@45: 			/* 
bgneal@45: 			 * if dealing w/local data and matchContains than we must make sure
bgneal@45: 			 * to loop through all the data collections looking for matches
bgneal@45: 			 */
bgneal@45: 			if( !options.url && options.matchContains ){
bgneal@45: 				// track all matches
bgneal@45: 				var csub = [];
bgneal@45: 				// loop through all the data grids for matches
bgneal@45: 				for( var k in data ){
bgneal@45: 					// don't search through the stMatchSets[""] (minChars: 0) cache
bgneal@45: 					// this prevents duplicates
bgneal@45: 					if( k.length > 0 ){
bgneal@45: 						var c = data[k];
bgneal@45: 						$.each(c, function(i, x) {
bgneal@45: 							// if we've got a match, add it to the array
bgneal@45: 							if (matchSubset(x.value, q)) {
bgneal@45: 								csub.push(x);
bgneal@45: 							}
bgneal@45: 						});
bgneal@45: 					}
bgneal@45: 				}				
bgneal@45: 				return csub;
bgneal@45: 			} else 
bgneal@45: 			// if the exact item exists, use it
bgneal@45: 			if (data[q]){
bgneal@45: 				return data[q];
bgneal@45: 			} else
bgneal@45: 			if (options.matchSubset) {
bgneal@45: 				for (var i = q.length - 1; i >= options.minChars; i--) {
bgneal@45: 					var c = data[q.substr(0, i)];
bgneal@45: 					if (c) {
bgneal@45: 						var csub = [];
bgneal@45: 						$.each(c, function(i, x) {
bgneal@45: 							if (matchSubset(x.value, q)) {
bgneal@45: 								csub[csub.length] = x;
bgneal@45: 							}
bgneal@45: 						});
bgneal@45: 						return csub;
bgneal@45: 					}
bgneal@45: 				}
bgneal@45: 			}
bgneal@45: 			return null;
bgneal@45: 		}
bgneal@45: 	};
bgneal@45: };
bgneal@45: 
bgneal@45: $.Autocompleter.Select = function (options, input, select, config) {
bgneal@45: 	var CLASSES = {
bgneal@45: 		ACTIVE: "ac_over"
bgneal@45: 	};
bgneal@45: 	
bgneal@45: 	var listItems,
bgneal@45: 		active = -1,
bgneal@45: 		data,
bgneal@45: 		term = "",
bgneal@45: 		needsInit = true,
bgneal@45: 		element,
bgneal@45: 		list;
bgneal@45: 	
bgneal@45: 	// Create results
bgneal@45: 	function init() {
bgneal@45: 		if (!needsInit)
bgneal@45: 			return;
bgneal@45: 		element = $("<div/>")
bgneal@45: 		.hide()
bgneal@45: 		.addClass(options.resultsClass)
bgneal@45: 		.css("position", "absolute")
bgneal@45: 		.appendTo(document.body);
bgneal@45: 	
bgneal@45: 		list = $("<ul/>").appendTo(element).mouseover( function(event) {
bgneal@45: 			if(target(event).nodeName && target(event).nodeName.toUpperCase() == 'LI') {
bgneal@45: 	            active = $("li", list).removeClass(CLASSES.ACTIVE).index(target(event));
bgneal@45: 			    $(target(event)).addClass(CLASSES.ACTIVE);            
bgneal@45: 	        }
bgneal@45: 		}).click(function(event) {
bgneal@45: 			$(target(event)).addClass(CLASSES.ACTIVE);
bgneal@45: 			select();
bgneal@45: 			// TODO provide option to avoid setting focus again after selection? useful for cleanup-on-focus
bgneal@45: 			input.focus();
bgneal@45: 			return false;
bgneal@45: 		}).mousedown(function() {
bgneal@45: 			config.mouseDownOnSelect = true;
bgneal@45: 		}).mouseup(function() {
bgneal@45: 			config.mouseDownOnSelect = false;
bgneal@45: 		});
bgneal@45: 		
bgneal@45: 		if( options.width > 0 )
bgneal@45: 			element.css("width", options.width);
bgneal@45: 			
bgneal@45: 		needsInit = false;
bgneal@45: 	} 
bgneal@45: 	
bgneal@45: 	function target(event) {
bgneal@45: 		var element = event.target;
bgneal@45: 		while(element && element.tagName != "LI")
bgneal@45: 			element = element.parentNode;
bgneal@45: 		// more fun with IE, sometimes event.target is empty, just ignore it then
bgneal@45: 		if(!element)
bgneal@45: 			return [];
bgneal@45: 		return element;
bgneal@45: 	}
bgneal@45: 
bgneal@45: 	function moveSelect(step) {
bgneal@45: 		listItems.slice(active, active + 1).removeClass(CLASSES.ACTIVE);
bgneal@45: 		movePosition(step);
bgneal@45:         var activeItem = listItems.slice(active, active + 1).addClass(CLASSES.ACTIVE);
bgneal@45:         if(options.scroll) {
bgneal@45:             var offset = 0;
bgneal@45:             listItems.slice(0, active).each(function() {
bgneal@45: 				offset += this.offsetHeight;
bgneal@45: 			});
bgneal@45:             if((offset + activeItem[0].offsetHeight - list.scrollTop()) > list[0].clientHeight) {
bgneal@45:                 list.scrollTop(offset + activeItem[0].offsetHeight - list.innerHeight());
bgneal@45:             } else if(offset < list.scrollTop()) {
bgneal@45:                 list.scrollTop(offset);
bgneal@45:             }
bgneal@45:         }
bgneal@45: 	};
bgneal@45: 	
bgneal@45: 	function movePosition(step) {
bgneal@45: 		active += step;
bgneal@45: 		if (active < 0) {
bgneal@45: 			active = listItems.size() - 1;
bgneal@45: 		} else if (active >= listItems.size()) {
bgneal@45: 			active = 0;
bgneal@45: 		}
bgneal@45: 	}
bgneal@45: 	
bgneal@45: 	function limitNumberOfItems(available) {
bgneal@45: 		return options.max && options.max < available
bgneal@45: 			? options.max
bgneal@45: 			: available;
bgneal@45: 	}
bgneal@45: 	
bgneal@45: 	function fillList() {
bgneal@45: 		list.empty();
bgneal@45: 		var max = limitNumberOfItems(data.length);
bgneal@45: 		for (var i=0; i < max; i++) {
bgneal@45: 			if (!data[i])
bgneal@45: 				continue;
bgneal@45: 			var formatted = options.formatItem(data[i].data, i+1, max, data[i].value, term);
bgneal@45: 			if ( formatted === false )
bgneal@45: 				continue;
bgneal@45: 			var li = $("<li/>").html( options.highlight(formatted, term) ).addClass(i%2 == 0 ? "ac_even" : "ac_odd").appendTo(list)[0];
bgneal@45: 			$.data(li, "ac_data", data[i]);
bgneal@45: 		}
bgneal@45: 		listItems = list.find("li");
bgneal@45: 		if ( options.selectFirst ) {
bgneal@45: 			listItems.slice(0, 1).addClass(CLASSES.ACTIVE);
bgneal@45: 			active = 0;
bgneal@45: 		}
bgneal@45: 		// apply bgiframe if available
bgneal@45: 		if ( $.fn.bgiframe )
bgneal@45: 			list.bgiframe();
bgneal@45: 	}
bgneal@45: 	
bgneal@45: 	return {
bgneal@45: 		display: function(d, q) {
bgneal@45: 			init();
bgneal@45: 			data = d;
bgneal@45: 			term = q;
bgneal@45: 			fillList();
bgneal@45: 		},
bgneal@45: 		next: function() {
bgneal@45: 			moveSelect(1);
bgneal@45: 		},
bgneal@45: 		prev: function() {
bgneal@45: 			moveSelect(-1);
bgneal@45: 		},
bgneal@45: 		pageUp: function() {
bgneal@45: 			if (active != 0 && active - 8 < 0) {
bgneal@45: 				moveSelect( -active );
bgneal@45: 			} else {
bgneal@45: 				moveSelect(-8);
bgneal@45: 			}
bgneal@45: 		},
bgneal@45: 		pageDown: function() {
bgneal@45: 			if (active != listItems.size() - 1 && active + 8 > listItems.size()) {
bgneal@45: 				moveSelect( listItems.size() - 1 - active );
bgneal@45: 			} else {
bgneal@45: 				moveSelect(8);
bgneal@45: 			}
bgneal@45: 		},
bgneal@45: 		hide: function() {
bgneal@45: 			element && element.hide();
bgneal@45: 			listItems && listItems.removeClass(CLASSES.ACTIVE);
bgneal@45: 			active = -1;
bgneal@45: 		},
bgneal@45: 		visible : function() {
bgneal@45: 			return element && element.is(":visible");
bgneal@45: 		},
bgneal@45: 		current: function() {
bgneal@45: 			return this.visible() && (listItems.filter("." + CLASSES.ACTIVE)[0] || options.selectFirst && listItems[0]);
bgneal@45: 		},
bgneal@45: 		show: function() {
bgneal@45: 			var offset = $(input).offset();
bgneal@45: 			element.css({
bgneal@45: 				width: typeof options.width == "string" || options.width > 0 ? options.width : $(input).width(),
bgneal@45: 				top: offset.top + input.offsetHeight,
bgneal@45: 				left: offset.left
bgneal@45: 			}).show();
bgneal@45:             if(options.scroll) {
bgneal@45:                 list.scrollTop(0);
bgneal@45:                 list.css({
bgneal@45: 					maxHeight: options.scrollHeight,
bgneal@45: 					overflow: 'auto'
bgneal@45: 				});
bgneal@45: 				
bgneal@45:                 if($.browser.msie && typeof document.body.style.maxHeight === "undefined") {
bgneal@45: 					var listHeight = 0;
bgneal@45: 					listItems.each(function() {
bgneal@45: 						listHeight += this.offsetHeight;
bgneal@45: 					});
bgneal@45: 					var scrollbarsVisible = listHeight > options.scrollHeight;
bgneal@45:                     list.css('height', scrollbarsVisible ? options.scrollHeight : listHeight );
bgneal@45: 					if (!scrollbarsVisible) {
bgneal@45: 						// IE doesn't recalculate width when scrollbar disappears
bgneal@45: 						listItems.width( list.width() - parseInt(listItems.css("padding-left")) - parseInt(listItems.css("padding-right")) );
bgneal@45: 					}
bgneal@45:                 }
bgneal@45:                 
bgneal@45:             }
bgneal@45: 		},
bgneal@45: 		selected: function() {
bgneal@45: 			var selected = listItems && listItems.filter("." + CLASSES.ACTIVE).removeClass(CLASSES.ACTIVE);
bgneal@45: 			return selected && selected.length && $.data(selected[0], "ac_data");
bgneal@45: 		},
bgneal@45: 		emptyList: function (){
bgneal@45: 			list && list.empty();
bgneal@45: 		},
bgneal@45: 		unbind: function() {
bgneal@45: 			element && element.remove();
bgneal@45: 		}
bgneal@45: 	};
bgneal@45: };
bgneal@45: 
bgneal@45: $.Autocompleter.Selection = function(field, start, end) {
bgneal@45: 	if( field.createTextRange ){
bgneal@45: 		var selRange = field.createTextRange();
bgneal@45: 		selRange.collapse(true);
bgneal@45: 		selRange.moveStart("character", start);
bgneal@45: 		selRange.moveEnd("character", end);
bgneal@45: 		selRange.select();
bgneal@45: 	} else if( field.setSelectionRange ){
bgneal@45: 		field.setSelectionRange(start, end);
bgneal@45: 	} else {
bgneal@45: 		if( field.selectionStart ){
bgneal@45: 			field.selectionStart = start;
bgneal@45: 			field.selectionEnd = end;
bgneal@45: 		}
bgneal@45: 	}
bgneal@45: 	field.focus();
bgneal@45: };
bgneal@45: 
bgneal@45: })(jQuery);