weForms – Easy Drag & Drop Contact Form Builder For WordPress / 1.3.3

weForms – Easy Drag & Drop Contact Form Builder For WordPress v1.3.3

weforms / assets / wpuf / vendor / selectize / js / standalone / selectize.js

selectize.js in weForms – Easy Drag & Drop Contact Form Builder For WordPress 1.3.3, at assets/wpuf/vendor/selectize/js/standalone/selectize.js

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1	/**
2	* sifter.js
3	* Copyright (c) 2013 Brian Reavis & contributors
4	*
5	* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this
6	* file except in compliance with the License. You may obtain a copy of the License at:
7	* http://www.apache.org/licenses/LICENSE-2.0
8	*
9	* Unless required by applicable law or agreed to in writing, software distributed under
10	* the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF
11	* ANY KIND, either express or implied. See the License for the specific language
12	* governing permissions and limitations under the License.
13	*
14	* @author Brian Reavis <brian@thirdroute.com>
15	*/
16
17	(function(root, factory) {
18	if (typeof define === 'function' && define.amd) {
19	define('sifter', factory);
20	} else if (typeof exports === 'object') {
21	module.exports = factory();
22	} else {
23	root.Sifter = factory();
24	}
25	}(this, function() {
26
27	/**
28	* Textually searches arrays and hashes of objects
29	* by property (or multiple properties). Designed
30	* specifically for autocomplete.
31	*
32	* @constructor
33	* @param {array\|object} items
34	* @param {object} items
35	*/
36	var Sifter = function(items, settings) {
37	this.items = items;
38	this.settings = settings \|\| {diacritics: true};
39	};
40
41	/**
42	* Splits a search string into an array of individual
43	* regexps to be used to match results.
44	*
45	* @param {string} query
46	* @returns {array}
47	*/
48	Sifter.prototype.tokenize = function(query) {
49	query = trim(String(query \|\| '').toLowerCase());
50	if (!query \|\| !query.length) return [];
51
52	var i, n, regex, letter;
53	var tokens = [];
54	var words = query.split(/ +/);
55
56	for (i = 0, n = words.length; i < n; i++) {
57	regex = escape_regex(words[i]);
58	if (this.settings.diacritics) {
59	for (letter in DIACRITICS) {
60	if (DIACRITICS.hasOwnProperty(letter)) {
61	regex = regex.replace(new RegExp(letter, 'g'), DIACRITICS[letter]);
62	}
63	}
64	}
65	tokens.push({
66	string : words[i],
67	regex : new RegExp(regex, 'i')
68	});
69	}
70
71	return tokens;
72	};
73
74	/**
75	* Iterates over arrays and hashes.
76	*
77	* ```
78	* this.iterator(this.items, function(item, id) {
79	* // invoked for each item
80	* });
81	* ```
82	*
83	* @param {array\|object} object
84	*/
85	Sifter.prototype.iterator = function(object, callback) {
86	var iterator;
87	if (is_array(object)) {
88	iterator = Array.prototype.forEach \|\| function(callback) {
89	for (var i = 0, n = this.length; i < n; i++) {
90	callback(this[i], i, this);
91	}
92	};
93	} else {
94	iterator = function(callback) {
95	for (var key in this) {
96	if (this.hasOwnProperty(key)) {
97	callback(this[key], key, this);
98	}
99	}
100	};
101	}
102
103	iterator.apply(object, [callback]);
104	};
105
106	/**
107	* Returns a function to be used to score individual results.
108	*
109	* Good matches will have a higher score than poor matches.
110	* If an item is not a match, 0 will be returned by the function.
111	*
112	* @param {object\|string} search
113	* @param {object} options (optional)
114	* @returns {function}
115	*/
116	Sifter.prototype.getScoreFunction = function(search, options) {
117	var self, fields, tokens, token_count, nesting;
118
119	self = this;
120	search = self.prepareSearch(search, options);
121	tokens = search.tokens;
122	fields = search.options.fields;
123	token_count = tokens.length;
124	nesting = search.options.nesting;
125
126	/**
127	* Calculates how close of a match the
128	* given value is against a search token.
129	*
130	* @param {mixed} value
131	* @param {object} token
132	* @return {number}
133	*/
134	var scoreValue = function(value, token) {
135	var score, pos;
136
137	if (!value) return 0;
138	value = String(value \|\| '');
139	pos = value.search(token.regex);
140	if (pos === -1) return 0;
141	score = token.string.length / value.length;
142	if (pos === 0) score += 0.5;
143	return score;
144	};
145
146	/**
147	* Calculates the score of an object
148	* against the search query.
149	*
150	* @param {object} token
151	* @param {object} data
152	* @return {number}
153	*/
154	var scoreObject = (function() {
155	var field_count = fields.length;
156	if (!field_count) {
157	return function() { return 0; };
158	}
159	if (field_count === 1) {
160	return function(token, data) {
161	return scoreValue(getattr(data, fields[0], nesting), token);
162	};
163	}
164	return function(token, data) {
165	for (var i = 0, sum = 0; i < field_count; i++) {
166	sum += scoreValue(getattr(data, fields[i], nesting), token);
167	}
168	return sum / field_count;
169	};
170	})();
171
172	if (!token_count) {
173	return function() { return 0; };
174	}
175	if (token_count === 1) {
176	return function(data) {
177	return scoreObject(tokens[0], data);
178	};
179	}
180
181	if (search.options.conjunction === 'and') {
182	return function(data) {
183	var score;
184	for (var i = 0, sum = 0; i < token_count; i++) {
185	score = scoreObject(tokens[i], data);
186	if (score <= 0) return 0;
187	sum += score;
188	}
189	return sum / token_count;
190	};
191	} else {
192	return function(data) {
193	for (var i = 0, sum = 0; i < token_count; i++) {
194	sum += scoreObject(tokens[i], data);
195	}
196	return sum / token_count;
197	};
198	}
199	};
200
201	/**
202	* Returns a function that can be used to compare two
203	* results, for sorting purposes. If no sorting should
204	* be performed, `null` will be returned.
205	*
206	* @param {string\|object} search
207	* @param {object} options
208	* @return function(a,b)
209	*/
210	Sifter.prototype.getSortFunction = function(search, options) {
211	var i, n, self, field, fields, fields_count, multiplier, multipliers, get_field, implicit_score, sort;
212
213	self = this;
214	search = self.prepareSearch(search, options);
215	sort = (!search.query && options.sort_empty) \|\| options.sort;
216
217	/**
218	* Fetches the specified sort field value
219	* from a search result item.
220	*
221	* @param {string} name
222	* @param {object} result
223	* @return {mixed}
224	*/
225	get_field = function(name, result) {
226	if (name === '$score') return result.score;
227	return getattr(self.items[result.id], name, options.nesting);
228	};
229
230	// parse options
231	fields = [];
232	if (sort) {
233	for (i = 0, n = sort.length; i < n; i++) {
234	if (search.query \|\| sort[i].field !== '$score') {
235	fields.push(sort[i]);
236	}
237	}
238	}
239
240	// the "$score" field is implied to be the primary
241	// sort field, unless it's manually specified
242	if (search.query) {
243	implicit_score = true;
244	for (i = 0, n = fields.length; i < n; i++) {
245	if (fields[i].field === '$score') {
246	implicit_score = false;
247	break;
248	}
249	}
250	if (implicit_score) {
251	fields.unshift({field: '$score', direction: 'desc'});
252	}
253	} else {
254	for (i = 0, n = fields.length; i < n; i++) {
255	if (fields[i].field === '$score') {
256	fields.splice(i, 1);
257	break;
258	}
259	}
260	}
261
262	multipliers = [];
263	for (i = 0, n = fields.length; i < n; i++) {
264	multipliers.push(fields[i].direction === 'desc' ? -1 : 1);
265	}
266
267	// build function
268	fields_count = fields.length;
269	if (!fields_count) {
270	return null;
271	} else if (fields_count === 1) {
272	field = fields[0].field;
273	multiplier = multipliers[0];
274	return function(a, b) {
275	return multiplier * cmp(
276	get_field(field, a),
277	get_field(field, b)
278	);
279	};
280	} else {
281	return function(a, b) {
282	var i, result, a_value, b_value, field;
283	for (i = 0; i < fields_count; i++) {
284	field = fields[i].field;
285	result = multipliers[i] * cmp(
286	get_field(field, a),
287	get_field(field, b)
288	);
289	if (result) return result;
290	}
291	return 0;
292	};
293	}
294	};
295
296	/**
297	* Parses a search query and returns an object
298	* with tokens and fields ready to be populated
299	* with results.
300	*
301	* @param {string} query
302	* @param {object} options
303	* @returns {object}
304	*/
305	Sifter.prototype.prepareSearch = function(query, options) {
306	if (typeof query === 'object') return query;
307
308	options = extend({}, options);
309
310	var option_fields = options.fields;
311	var option_sort = options.sort;
312	var option_sort_empty = options.sort_empty;
313
314	if (option_fields && !is_array(option_fields)) options.fields = [option_fields];
315	if (option_sort && !is_array(option_sort)) options.sort = [option_sort];
316	if (option_sort_empty && !is_array(option_sort_empty)) options.sort_empty = [option_sort_empty];
317
318	return {
319	options : options,
320	query : String(query \|\| '').toLowerCase(),
321	tokens : this.tokenize(query),
322	total : 0,
323	items : []
324	};
325	};
326
327	/**
328	* Searches through all items and returns a sorted array of matches.
329	*
330	* The `options` parameter can contain:
331	*
332	* - fields {string\|array}
333	* - sort {array}
334	* - score {function}
335	* - filter {bool}
336	* - limit {integer}
337	*
338	* Returns an object containing:
339	*
340	* - options {object}
341	* - query {string}
342	* - tokens {array}
343	* - total {int}
344	* - items {array}
345	*
346	* @param {string} query
347	* @param {object} options
348	* @returns {object}
349	*/
350	Sifter.prototype.search = function(query, options) {
351	var self = this, value, score, search, calculateScore;
352	var fn_sort;
353	var fn_score;
354
355	search = this.prepareSearch(query, options);
356	options = search.options;
357	query = search.query;
358
359	// generate result scoring function
360	fn_score = options.score \|\| self.getScoreFunction(search);
361
362	// perform search and sort
363	if (query.length) {
364	self.iterator(self.items, function(item, id) {
365	score = fn_score(item);
366	if (options.filter === false \|\| score > 0) {
367	search.items.push({'score': score, 'id': id});
368	}
369	});
370	} else {
371	self.iterator(self.items, function(item, id) {
372	search.items.push({'score': 1, 'id': id});
373	});
374	}
375
376	fn_sort = self.getSortFunction(search, options);
377	if (fn_sort) search.items.sort(fn_sort);
378
379	// apply limits
380	search.total = search.items.length;
381	if (typeof options.limit === 'number') {
382	search.items = search.items.slice(0, options.limit);
383	}
384
385	return search;
386	};
387
388	// utilities
389	// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
390
391	var cmp = function(a, b) {
392	if (typeof a === 'number' && typeof b === 'number') {
393	return a > b ? 1 : (a < b ? -1 : 0);
394	}
395	a = asciifold(String(a \|\| ''));
396	b = asciifold(String(b \|\| ''));
397	if (a > b) return 1;
398	if (b > a) return -1;
399	return 0;
400	};
401
402	var extend = function(a, b) {
403	var i, n, k, object;
404	for (i = 1, n = arguments.length; i < n; i++) {
405	object = arguments[i];
406	if (!object) continue;
407	for (k in object) {
408	if (object.hasOwnProperty(k)) {
409	a[k] = object[k];
410	}
411	}
412	}
413	return a;
414	};
415
416	/**
417	* A property getter resolving dot-notation
418	* @param {Object} obj The root object to fetch property on
419	* @param {String} name The optionally dotted property name to fetch
420	* @param {Boolean} nesting Handle nesting or not
421	* @return {Object} The resolved property value
422	*/
423	var getattr = function(obj, name, nesting) {
424	if (!obj \|\| !name) return;
425	if (!nesting) return obj[name];
426	var names = name.split(".");
427	while(names.length && (obj = obj[names.shift()]));
428	return obj;
429	};
430
431	var trim = function(str) {
432	return (str + '').replace(/^\s+\|\s+$\|/g, '');
433	};
434
435	var escape_regex = function(str) {
436	return (str + '').replace(/([.?*+^$[\]\\(){}\|-])/g, '\\$1');
437	};
438
439	var is_array = Array.isArray \|\| (typeof $ !== 'undefined' && $.isArray) \|\| function(object) {
440	return Object.prototype.toString.call(object) === '[object Array]';
441	};
442
443	var DIACRITICS = {
444	'a': '[aḀḁĂăÂâǍǎȺⱥȦȧẠạÄäÀàÁáĀāÃã�
445	å�
446	ĄÃ�
447	Ą]',
448	'b': '[b␢βΒB฿𐌁ᛒ]',
449	'c': '[cĆćĈĉČčĊċC̄c̄ÇçḈḉȻȼƇƈɕᴄＣｃ]',
450	'd': '[dĎďḊḋḐḑḌḍḒḓḎḏĐđD̦d̦ƉɖƊɗƋƌᵭᶁᶑȡ�
451	Ｄｄð]',
452	'e': '[eÉéÈèÊêḘḙĚěĔĕẼẽḚḛẺẻĖėËëĒēȨȩĘęᶒɆɇȄ�
453	ẾếỀềỄ�
454	ỂểḜḝḖḗḔḕȆȇẸẹỆệⱸᴇＥ�
455	ɘǝƏƐε]',
456	'f': '[fƑƒḞḟ]',
457	'g': '[gɢ₲ǤǥĜĝĞğĢģƓɠĠġ]',
458	'h': '[hĤĥĦħḨḩẖẖḤḥḢḣɦʰǶƕ]',
459	'i': '[iÍíÌìĬĭÎîǏǐÏïḮḯĨĩĮįĪīỈỉȈȉȊȋỊịḬḭƗɨɨ̆ᵻᶖİiIıɪＩｉ]',
460	'j': '[jȷĴĵɈɉʝɟʲ]',
461	'k': '[kƘƙꝀꝁḰḱǨǩḲḳḴḵκϰ₭]',
462	'l': '[lŁłĽľĻļĹĺḶḷḸḹḼḽḺḻĿŀȽƚⱠⱡⱢɫɬ�
463	ɭȴʟＬｌ]',
464	'n': '[nŃńǸǹŇňÑñṄ�
465	�
466	ņṆṇṊṋṈṉN̈n̈ƝɲȠƞᵰᶇɳȵɴＮｎŊŋ]',
467	'o': '[oØøÖöÓóÒòÔôǑǒŐőŎŏȮȯỌọƟɵƠơỎỏŌōÕõǪǫȌȍՕ�
468	]',
469	'p': '[pṔṕṖṗⱣᵽƤƥᵱ]',
470	'q': '[qꝖꝗʠɊɋꝘꝙq̃]',
471	'r': '[rŔŕɌɍŘřŖŗṘṙȐȑȒȓṚṛⱤɽ]',
472	's': '[sŚśṠṡṢṣꞨꞩŜŝŠšŞşȘșS̈s̈]',
473	't': '[tŤťṪṫŢţṬṭƮʈȚțṰṱṮṯƬƭ]',
474	'u': '[uŬŭɄʉỤụÜüÚúÙùÛûǓǔŰűŬŭƯưỦủŪūŨũŲųȔȕ∪]',
475	'v': '[vṼṽṾṿƲʋꝞꝟⱱʋ]',
476	'w': '[wẂẃẀẁŴŵẄ�
477	ẆẇẈẉ]',
478	'x': '[xẌẍẊẋχ]',
479	'y': '[yÝýỲỳŶŷŸÿỸỹẎẏỴỵɎɏƳƴ]',
480	'z': '[zŹźẐẑŽžŻżẒẓẔẕƵƶ]'
481	};
482
483	var asciifold = (function() {
484	var i, n, k, chunk;
485	var foreignletters = '';
486	var lookup = {};
487	for (k in DIACRITICS) {
488	if (DIACRITICS.hasOwnProperty(k)) {
489	chunk = DIACRITICS[k].substring(2, DIACRITICS[k].length - 1);
490	foreignletters += chunk;
491	for (i = 0, n = chunk.length; i < n; i++) {
492	lookup[chunk.charAt(i)] = k;
493	}
494	}
495	}
496	var regexp = new RegExp('[' + foreignletters + ']', 'g');
497	return function(str) {
498	return str.replace(regexp, function(foreignletter) {
499	return lookup[foreignletter];
500	}).toLowerCase();
501	};
502	})();
503
504
505	// export
506	// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
507
508	return Sifter;
509	}));
510
511
512
513	/**
514	* microplugin.js
515	* Copyright (c) 2013 Brian Reavis & contributors
516	*
517	* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this
518	* file except in compliance with the License. You may obtain a copy of the License at:
519	* http://www.apache.org/licenses/LICENSE-2.0
520	*
521	* Unless required by applicable law or agreed to in writing, software distributed under
522	* the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF
523	* ANY KIND, either express or implied. See the License for the specific language
524	* governing permissions and limitations under the License.
525	*
526	* @author Brian Reavis <brian@thirdroute.com>
527	*/
528
529	(function(root, factory) {
530	if (typeof define === 'function' && define.amd) {
531	define('microplugin', factory);
532	} else if (typeof exports === 'object') {
533	module.exports = factory();
534	} else {
535	root.MicroPlugin = factory();
536	}
537	}(this, function() {
538	var MicroPlugin = {};
539
540	MicroPlugin.mixin = function(Interface) {
541	Interface.plugins = {};
542
543	/**
544	* Initializes the listed plugins (with options).
545	* Acceptable formats:
546	*
547	* List (without options):
548	* ['a', 'b', 'c']
549	*
550	* List (with options):
551	* [{'name': 'a', options: {}}, {'name': 'b', options: {}}]
552	*
553	* Hash (with options):
554	* {'a': { ... }, 'b': { ... }, 'c': { ... }}
555	*
556	* @param {mixed} plugins
557	*/
558	Interface.prototype.initializePlugins = function(plugins) {
559	var i, n, key;
560	var self = this;
561	var queue = [];
562
563	self.plugins = {
564	names : [],
565	settings : {},
566	requested : {},
567	loaded : {}
568	};
569
570	if (utils.isArray(plugins)) {
571	for (i = 0, n = plugins.length; i < n; i++) {
572	if (typeof plugins[i] === 'string') {
573	queue.push(plugins[i]);
574	} else {
575	self.plugins.settings[plugins[i].name] = plugins[i].options;
576	queue.push(plugins[i].name);
577	}
578	}
579	} else if (plugins) {
580	for (key in plugins) {
581	if (plugins.hasOwnProperty(key)) {
582	self.plugins.settings[key] = plugins[key];
583	queue.push(key);
584	}
585	}
586	}
587
588	while (queue.length) {
589	self.require(queue.shift());
590	}
591	};
592
593	Interface.prototype.loadPlugin = function(name) {
594	var self = this;
595	var plugins = self.plugins;
596	var plugin = Interface.plugins[name];
597
598	if (!Interface.plugins.hasOwnProperty(name)) {
599	throw new Error('Unable to find "' + name + '" plugin');
600	}
601
602	plugins.requested[name] = true;
603	plugins.loaded[name] = plugin.fn.apply(self, [self.plugins.settings[name] \|\| {}]);
604	plugins.names.push(name);
605	};
606
607	/**
608	* Initializes a plugin.
609	*
610	* @param {string} name
611	*/
612	Interface.prototype.require = function(name) {
613	var self = this;
614	var plugins = self.plugins;
615
616	if (!self.plugins.loaded.hasOwnProperty(name)) {
617	if (plugins.requested[name]) {
618	throw new Error('Plugin has circular dependency ("' + name + '")');
619	}
620	self.loadPlugin(name);
621	}
622
623	return plugins.loaded[name];
624	};
625
626	/**
627	* Registers a plugin.
628	*
629	* @param {string} name
630	* @param {function} fn
631	*/
632	Interface.define = function(name, fn) {
633	Interface.plugins[name] = {
634	'name' : name,
635	'fn' : fn
636	};
637	};
638	};
639
640	var utils = {
641	isArray: Array.isArray \|\| function(vArg) {
642	return Object.prototype.toString.call(vArg) === '[object Array]';
643	}
644	};
645
646	return MicroPlugin;
647	}));
648
649	/**
650	* selectize.js (v0.12.4)
651	* Copyright (c) 2013–2015 Brian Reavis & contributors
652	*
653	* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this
654	* file except in compliance with the License. You may obtain a copy of the License at:
655	* http://www.apache.org/licenses/LICENSE-2.0
656	*
657	* Unless required by applicable law or agreed to in writing, software distributed under
658	* the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF
659	* ANY KIND, either express or implied. See the License for the specific language
660	* governing permissions and limitations under the License.
661	*
662	* @author Brian Reavis <brian@thirdroute.com>
663	*/
664
665	/jshint curly:false /
666	/jshint browser:true /
667
668	(function(root, factory) {
669	if (typeof define === 'function' && define.amd) {
670	define('selectize', ['jquery','sifter','microplugin'], factory);
671	} else if (typeof exports === 'object') {
672	module.exports = factory(require('jquery'), require('sifter'), require('microplugin'));
673	} else {
674	root.Selectize = factory(root.jQuery, root.Sifter, root.MicroPlugin);
675	}
676	}(this, function($, Sifter, MicroPlugin) {
677	'use strict';
678
679	var highlight = function($element, pattern) {
680	if (typeof pattern === 'string' && !pattern.length) return;
681	var regex = (typeof pattern === 'string') ? new RegExp(pattern, 'i') : pattern;
682
683	var highlight = function(node) {
684	var skip = 0;
685	if (node.nodeType === 3) {
686	var pos = node.data.search(regex);
687	if (pos >= 0 && node.data.length > 0) {
688	var match = node.data.match(regex);
689	var spannode = document.createElement('span');
690	spannode.className = 'highlight';
691	var middlebit = node.splitText(pos);
692	var endbit = middlebit.splitText(match[0].length);
693	var middleclone = middlebit.cloneNode(true);
694	spannode.appendChild(middleclone);
695	middlebit.parentNode.replaceChild(spannode, middlebit);
696	skip = 1;
697	}
698	} else if (node.nodeType === 1 && node.childNodes && !/(script\|style)/i.test(node.tagName)) {
699	for (var i = 0; i < node.childNodes.length; ++i) {
700	i += highlight(node.childNodes[i]);
701	}
702	}
703	return skip;
704	};
705
706	return $element.each(function() {
707	highlight(this);
708	});
709	};
710
711	/**
712	* removeHighlight fn copied from highlight v5 and
713	* edited to remove with() and pass js strict mode
714	*/
715	$.fn.removeHighlight = function() {
716	return this.find("span.highlight").each(function() {
717	this.parentNode.firstChild.nodeName;
718	var parent = this.parentNode;
719	parent.replaceChild(this.firstChild, this);
720	parent.normalize();
721	}).end();
722	};
723
724
725	var MicroEvent = function() {};
726	MicroEvent.prototype = {
727	on: function(event, fct){
728	this._events = this._events \|\| {};
729	this._events[event] = this._events[event] \|\| [];
730	this._events[event].push(fct);
731	},
732	off: function(event, fct){
733	var n = arguments.length;
734	if (n === 0) return delete this._events;
735	if (n === 1) return delete this._events[event];
736
737	this._events = this._events \|\| {};
738	if (event in this._events === false) return;
739	this._events[event].splice(this._events[event].indexOf(fct), 1);
740	},
741	trigger: function(event /* , args... */){
742	this._events = this._events \|\| {};
743	if (event in this._events === false) return;
744	for (var i = 0; i < this._events[event].length; i++){
745	this._events[event][i].apply(this, Array.prototype.slice.call(arguments, 1));
746	}
747	}
748	};
749
750	/**
751	* Mixin will delegate all MicroEvent.js function in the destination object.
752	*
753	* - MicroEvent.mixin(Foobar) will make Foobar able to use MicroEvent
754	*
755	* @param {object} the object which will support MicroEvent
756	*/
757	MicroEvent.mixin = function(destObject){
758	var props = ['on', 'off', 'trigger'];
759	for (var i = 0; i < props.length; i++){
760	destObject.prototype[props[i]] = MicroEvent.prototype[props[i]];
761	}
762	};
763
764	var IS_MAC = /Mac/.test(navigator.userAgent);
765
766	var KEY_A = 65;
767	var KEY_COMMA = 188;
768	var KEY_RETURN = 13;
769	var KEY_ESC = 27;
770	var KEY_LEFT = 37;
771	var KEY_UP = 38;
772	var KEY_P = 80;
773	var KEY_RIGHT = 39;
774	var KEY_DOWN = 40;
775	var KEY_N = 78;
776	var KEY_BACKSPACE = 8;
777	var KEY_DELETE = 46;
778	var KEY_SHIFT = 16;
779	var KEY_CMD = IS_MAC ? 91 : 17;
780	var KEY_CTRL = IS_MAC ? 18 : 17;
781	var KEY_TAB = 9;
782
783	var TAG_SELECT = 1;
784	var TAG_INPUT = 2;
785
786	// for now, android support in general is too spotty to support validity
787	var SUPPORTS_VALIDITY_API = !/android/i.test(window.navigator.userAgent) && !!document.createElement('input').validity;
788
789
790	var isset = function(object) {
791	return typeof object !== 'undefined';
792	};
793
794	/**
795	* Converts a scalar to its best string representation
796	* for hash keys and HTML attribute values.
797	*
798	* Transformations:
799	* 'str' -> 'str'
800	* null -> ''
801	* undefined -> ''
802	* true -> '1'
803	* false -> '0'
804	* 0 -> '0'
805	* 1 -> '1'
806	*
807	* @param {string} value
808	* @returns {string\|null}
809	*/
810	var hash_key = function(value) {
811	if (typeof value === 'undefined' \|\| value === null) return null;
812	if (typeof value === 'boolean') return value ? '1' : '0';
813	return value + '';
814	};
815
816	/**
817	* Escapes a string for use within HTML.
818	*
819	* @param {string} str
820	* @returns {string}
821	*/
822	var escape_html = function(str) {
823	return (str + '')
824	.replace(/&/g, '&')
825	.replace(/</g, '<')
826	.replace(/>/g, '>')
827	.replace(/"/g, '"');
828	};
829
830	/**
831	* Escapes "$" characters in replacement strings.
832	*
833	* @param {string} str
834	* @returns {string}
835	*/
836	var escape_replace = function(str) {
837	return (str + '').replace(/\$/g, '$$$$');
838	};
839
840	var hook = {};
841
842	/**
843	* Wraps `method` on `self` so that `fn`
844	* is invoked before the original method.
845	*
846	* @param {object} self
847	* @param {string} method
848	* @param {function} fn
849	*/
850	hook.before = function(self, method, fn) {
851	var original = self[method];
852	self[method] = function() {
853	fn.apply(self, arguments);
854	return original.apply(self, arguments);
855	};
856	};
857
858	/**
859	* Wraps `method` on `self` so that `fn`
860	* is invoked after the original method.
861	*
862	* @param {object} self
863	* @param {string} method
864	* @param {function} fn
865	*/
866	hook.after = function(self, method, fn) {
867	var original = self[method];
868	self[method] = function() {
869	var result = original.apply(self, arguments);
870	fn.apply(self, arguments);
871	return result;
872	};
873	};
874
875	/**
876	* Wraps `fn` so that it can only be invoked once.
877	*
878	* @param {function} fn
879	* @returns {function}
880	*/
881	var once = function(fn) {
882	var called = false;
883	return function() {
884	if (called) return;
885	called = true;
886	fn.apply(this, arguments);
887	};
888	};
889
890	/**
891	* Wraps `fn` so that it can only be called once
892	* every `delay` milliseconds (invoked on the falling edge).
893	*
894	* @param {function} fn
895	* @param {int} delay
896	* @returns {function}
897	*/
898	var debounce = function(fn, delay) {
899	var timeout;
900	return function() {
901	var self = this;
902	var args = arguments;
903	window.clearTimeout(timeout);
904	timeout = window.setTimeout(function() {
905	fn.apply(self, args);
906	}, delay);
907	};
908	};
909
910	/**
911	* Debounce all fired events types listed in `types`
912	* while executing the provided `fn`.
913	*
914	* @param {object} self
915	* @param {array} types
916	* @param {function} fn
917	*/
918	var debounce_events = function(self, types, fn) {
919	var type;
920	var trigger = self.trigger;
921	var event_args = {};
922
923	// override trigger method
924	self.trigger = function() {
925	var type = arguments[0];
926	if (types.indexOf(type) !== -1) {
927	event_args[type] = arguments;
928	} else {
929	return trigger.apply(self, arguments);
930	}
931	};
932
933	// invoke provided function
934	fn.apply(self, []);
935	self.trigger = trigger;
936
937	// trigger queued events
938	for (type in event_args) {
939	if (event_args.hasOwnProperty(type)) {
940	trigger.apply(self, event_args[type]);
941	}
942	}
943	};
944
945	/**
946	* A workaround for http://bugs.jquery.com/ticket/6696
947	*
948	* @param {object} $parent - Parent element to listen on.
949	* @param {string} event - Event name.
950	* @param {string} selector - Descendant selector to filter by.
951	* @param {function} fn - Event handler.
952	*/
953	var watchChildEvent = function($parent, event, selector, fn) {
954	$parent.on(event, selector, function(e) {
955	var child = e.target;
956	while (child && child.parentNode !== $parent[0]) {
957	child = child.parentNode;
958	}
959	e.currentTarget = child;
960	return fn.apply(this, [e]);
961	});
962	};
963
964	/**
965	* Determines the current selection within a text input control.
966	* Returns an object containing:
967	* - start
968	* - length
969	*
970	* @param {object} input
971	* @returns {object}
972	*/
973	var getSelection = function(input) {
974	var result = {};
975	if ('selectionStart' in input) {
976	result.start = input.selectionStart;
977	result.length = input.selectionEnd - result.start;
978	} else if (document.selection) {
979	input.focus();
980	var sel = document.selection.createRange();
981	var selLen = document.selection.createRange().text.length;
982	sel.moveStart('character', -input.value.length);
983	result.start = sel.text.length - selLen;
984	result.length = selLen;
985	}
986	return result;
987	};
988
989	/**
990	* Copies CSS properties from one element to another.
991	*
992	* @param {object} $from
993	* @param {object} $to
994	* @param {array} properties
995	*/
996	var transferStyles = function($from, $to, properties) {
997	var i, n, styles = {};
998	if (properties) {
999	for (i = 0, n = properties.length; i < n; i++) {
1000	styles[properties[i]] = $from.css(properties[i]);
1001	}
1002	} else {
1003	styles = $from.css();
1004	}
1005	$to.css(styles);
1006	};
1007
1008	/**
1009	* Measures the width of a string within a
1010	* parent element (in pixels).
1011	*
1012	* @param {string} str
1013	* @param {object} $parent
1014	* @returns {int}
1015	*/
1016	var measureString = function(str, $parent) {
1017	if (!str) {
1018	return 0;
1019	}
1020
1021	var $test = $('<test>').css({
1022	position: 'absolute',
1023	top: -99999,
1024	left: -99999,
1025	width: 'auto',
1026	padding: 0,
1027	whiteSpace: 'pre'
1028	}).text(str).appendTo('body');
1029
1030	transferStyles($parent, $test, [
1031	'letterSpacing',
1032	'fontSize',
1033	'fontFamily',
1034	'fontWeight',
1035	'textTransform'
1036	]);
1037
1038	var width = $test.width();
1039	$test.remove();
1040
1041	return width;
1042	};
1043
1044	/**
1045	* Sets up an input to grow horizontally as the user
1046	* types. If the value is changed manually, you can
1047	* trigger the "update" handler to resize:
1048	*
1049	* $input.trigger('update');
1050	*
1051	* @param {object} $input
1052	*/
1053	var autoGrow = function($input) {
1054	var currentWidth = null;
1055
1056	var update = function(e, options) {
1057	var value, keyCode, printable, placeholder, width;
1058	var shift, character, selection;
1059	e = e \|\| window.event \|\| {};
1060	options = options \|\| {};
1061
1062	if (e.metaKey \|\| e.altKey) return;
1063	if (!options.force && $input.data('grow') === false) return;
1064
1065	value = $input.val();
1066	if (e.type && e.type.toLowerCase() === 'keydown') {
1067	keyCode = e.keyCode;
1068	printable = (
1069	(keyCode >= 97 && keyCode <= 122) \|\| // a-z
1070	(keyCode >= 65 && keyCode <= 90) \|\| // A-Z
1071	(keyCode >= 48 && keyCode <= 57) \|\| // 0-9
1072	keyCode === 32 // space
1073	);
1074
1075	if (keyCode === KEY_DELETE \|\| keyCode === KEY_BACKSPACE) {
1076	selection = getSelection($input[0]);
1077	if (selection.length) {
1078	value = value.substring(0, selection.start) + value.substring(selection.start + selection.length);
1079	} else if (keyCode === KEY_BACKSPACE && selection.start) {
1080	value = value.substring(0, selection.start - 1) + value.substring(selection.start + 1);
1081	} else if (keyCode === KEY_DELETE && typeof selection.start !== 'undefined') {
1082	value = value.substring(0, selection.start) + value.substring(selection.start + 1);
1083	}
1084	} else if (printable) {
1085	shift = e.shiftKey;
1086	character = String.fromCharCode(e.keyCode);
1087	if (shift) character = character.toUpperCase();
1088	else character = character.toLowerCase();
1089	value += character;
1090	}
1091	}
1092
1093	placeholder = $input.attr('placeholder');
1094	if (!value && placeholder) {
1095	value = placeholder;
1096	}
1097
1098	width = measureString(value, $input) + 4;
1099	if (width !== currentWidth) {
1100	currentWidth = width;
1101	$input.width(width);
1102	$input.triggerHandler('resize');
1103	}
1104	};
1105
1106	$input.on('keydown keyup update blur', update);
1107	update();
1108	};
1109
1110	var domToString = function(d) {
1111	var tmp = document.createElement('div');
1112
1113	tmp.appendChild(d.cloneNode(true));
1114
1115	return tmp.innerHTML;
1116	};
1117
1118	var logError = function(message, options){
1119	if(!options) options = {};
1120	var component = "Selectize";
1121
1122	console.error(component + ": " + message)
1123
1124	if(options.explanation){
1125	// console.group is undefined in <IE11
1126	if(console.group) console.group();
1127	console.error(options.explanation);
1128	if(console.group) console.groupEnd();
1129	}
1130	}
1131
1132
1133	var Selectize = function($input, settings) {
1134	var key, i, n, dir, input, self = this;
1135	input = $input[0];
1136	input.selectize = self;
1137
1138	// detect rtl environment
1139	var computedStyle = window.getComputedStyle && window.getComputedStyle(input, null);
1140	dir = computedStyle ? computedStyle.getPropertyValue('direction') : input.currentStyle && input.currentStyle.direction;
1141	dir = dir \|\| $input.parents('[dir]:first').attr('dir') \|\| '';
1142
1143	// setup default state
1144	$.extend(self, {
1145	order : 0,
1146	settings : settings,
1147	$input : $input,
1148	tabIndex : $input.attr('tabindex') \|\| '',
1149	tagType : input.tagName.toLowerCase() === 'select' ? TAG_SELECT : TAG_INPUT,
1150	rtl : /rtl/i.test(dir),
1151
1152	eventNS : '.selectize' + (++Selectize.count),
1153	highlightedValue : null,
1154	isOpen : false,
1155	isDisabled : false,
1156	isRequired : $input.is('[required]'),
1157	isInvalid : false,
1158	isLocked : false,
1159	isFocused : false,
1160	isInputHidden : false,
1161	isSetup : false,
1162	isShiftDown : false,
1163	isCmdDown : false,
1164	isCtrlDown : false,
1165	ignoreFocus : false,
1166	ignoreBlur : false,
1167	ignoreHover : false,
1168	hasOptions : false,
1169	currentResults : null,
1170	lastValue : '',
1171	caretPos : 0,
1172	loading : 0,
1173	loadedSearches : {},
1174
1175	$activeOption : null,
1176	$activeItems : [],
1177
1178	optgroups : {},
1179	options : {},
1180	userOptions : {},
1181	items : [],
1182	renderCache : {},
1183	onSearchChange : settings.loadThrottle === null ? self.onSearchChange : debounce(self.onSearchChange, settings.loadThrottle)
1184	});
1185
1186	// search system
1187	self.sifter = new Sifter(this.options, {diacritics: settings.diacritics});
1188
1189	// build options table
1190	if (self.settings.options) {
1191	for (i = 0, n = self.settings.options.length; i < n; i++) {
1192	self.registerOption(self.settings.options[i]);
1193	}
1194	delete self.settings.options;
1195	}
1196
1197	// build optgroup table
1198	if (self.settings.optgroups) {
1199	for (i = 0, n = self.settings.optgroups.length; i < n; i++) {
1200	self.registerOptionGroup(self.settings.optgroups[i]);
1201	}
1202	delete self.settings.optgroups;
1203	}
1204
1205	// option-dependent defaults
1206	self.settings.mode = self.settings.mode \|\| (self.settings.maxItems === 1 ? 'single' : 'multi');
1207	if (typeof self.settings.hideSelected !== 'boolean') {
1208	self.settings.hideSelected = self.settings.mode === 'multi';
1209	}
1210
1211	self.initializePlugins(self.settings.plugins);
1212	self.setupCallbacks();
1213	self.setupTemplates();
1214	self.setup();
1215	};
1216
1217	// mixins
1218	// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
1219
1220	MicroEvent.mixin(Selectize);
1221
1222	if(typeof MicroPlugin !== "undefined"){
1223	MicroPlugin.mixin(Selectize);
1224	}else{
1225	logError("Dependency MicroPlugin is missing",
1226	{explanation:
1227	"Make sure you either: (1) are using the \"standalone\" "+
1228	"version of Selectize, or (2) require MicroPlugin before you "+
1229	"load Selectize."}
1230	);
1231	}
1232
1233
1234	// methods
1235	// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
1236
1237	$.extend(Selectize.prototype, {
1238
1239	/**
1240	* Creates all elements and sets up event bindings.
1241	*/
1242	setup: function() {
1243	var self = this;
1244	var settings = self.settings;
1245	var eventNS = self.eventNS;
1246	var $window = $(window);
1247	var $document = $(document);
1248	var $input = self.$input;
1249
1250	var $wrapper;
1251	var $control;
1252	var $control_input;
1253	var $dropdown;
1254	var $dropdown_content;
1255	var $dropdown_parent;
1256	var inputMode;
1257	var timeout_blur;
1258	var timeout_focus;
1259	var classes;
1260	var classes_plugins;
1261	var inputId;
1262
1263	inputMode = self.settings.mode;
1264	classes = $input.attr('class') \|\| '';
1265
1266	$wrapper = $('<div>').addClass(settings.wrapperClass).addClass(classes).addClass(inputMode);
1267	$control = $('<div>').addClass(settings.inputClass).addClass('items').appendTo($wrapper);
1268	$control_input = $('<input type="text" autocomplete="off" />').appendTo($control).attr('tabindex', $input.is(':disabled') ? '-1' : self.tabIndex);
1269	$dropdown_parent = $(settings.dropdownParent \|\| $wrapper);
1270	$dropdown = $('<div>').addClass(settings.dropdownClass).addClass(inputMode).hide().appendTo($dropdown_parent);
1271	$dropdown_content = $('<div>').addClass(settings.dropdownContentClass).appendTo($dropdown);
1272
1273	if(inputId = $input.attr('id')) {
1274	$control_input.attr('id', inputId + '-selectized');
1275	$("label[for='"+inputId+"']").attr('for', inputId + '-selectized');
1276	}
1277
1278	if(self.settings.copyClassesToDropdown) {
1279	$dropdown.addClass(classes);
1280	}
1281
1282	$wrapper.css({
1283	width: $input[0].style.width
1284	});
1285
1286	if (self.plugins.names.length) {
1287	classes_plugins = 'plugin-' + self.plugins.names.join(' plugin-');
1288	$wrapper.addClass(classes_plugins);
1289	$dropdown.addClass(classes_plugins);
1290	}
1291
1292	if ((settings.maxItems === null \|\| settings.maxItems > 1) && self.tagType === TAG_SELECT) {
1293	$input.attr('multiple', 'multiple');
1294	}
1295
1296	if (self.settings.placeholder) {
1297	$control_input.attr('placeholder', settings.placeholder);
1298	}
1299
1300	// if splitOn was not passed in, construct it from the delimiter to allow pasting universally
1301	if (!self.settings.splitOn && self.settings.delimiter) {
1302	var delimiterEscaped = self.settings.delimiter.replace(/[-\/\\^$*+?.()\|[\]{}]/g, '\\$&');
1303	self.settings.splitOn = new RegExp('\\s' + delimiterEscaped + '+\\s');
1304	}
1305
1306	if ($input.attr('autocorrect')) {
1307	$control_input.attr('autocorrect', $input.attr('autocorrect'));
1308	}
1309
1310	if ($input.attr('autocapitalize')) {
1311	$control_input.attr('autocapitalize', $input.attr('autocapitalize'));
1312	}
1313
1314	self.$wrapper = $wrapper;
1315	self.$control = $control;
1316	self.$control_input = $control_input;
1317	self.$dropdown = $dropdown;
1318	self.$dropdown_content = $dropdown_content;
1319
1320	$dropdown.on('mouseenter', '[data-selectable]', function() { return self.onOptionHover.apply(self, arguments); });
1321	$dropdown.on('mousedown click', '[data-selectable]', function() { return self.onOptionSelect.apply(self, arguments); });
1322	watchChildEvent($control, 'mousedown', '*:not(input)', function() { return self.onItemSelect.apply(self, arguments); });
1323	autoGrow($control_input);
1324
1325	$control.on({
1326	mousedown : function() { return self.onMouseDown.apply(self, arguments); },
1327	click : function() { return self.onClick.apply(self, arguments); }
1328	});
1329
1330	$control_input.on({
1331	mousedown : function(e) { e.stopPropagation(); },
1332	keydown : function() { return self.onKeyDown.apply(self, arguments); },
1333	keyup : function() { return self.onKeyUp.apply(self, arguments); },
1334	keypress : function() { return self.onKeyPress.apply(self, arguments); },
1335	resize : function() { self.positionDropdown.apply(self, []); },
1336	blur : function() { return self.onBlur.apply(self, arguments); },
1337	focus : function() { self.ignoreBlur = false; return self.onFocus.apply(self, arguments); },
1338	paste : function() { return self.onPaste.apply(self, arguments); }
1339	});
1340
1341	$document.on('keydown' + eventNS, function(e) {
1342	self.isCmdDown = e[IS_MAC ? 'metaKey' : 'ctrlKey'];
1343	self.isCtrlDown = e[IS_MAC ? 'altKey' : 'ctrlKey'];
1344	self.isShiftDown = e.shiftKey;
1345	});
1346
1347	$document.on('keyup' + eventNS, function(e) {
1348	if (e.keyCode === KEY_CTRL) self.isCtrlDown = false;
1349	if (e.keyCode === KEY_SHIFT) self.isShiftDown = false;
1350	if (e.keyCode === KEY_CMD) self.isCmdDown = false;
1351	});
1352
1353	$document.on('mousedown' + eventNS, function(e) {
1354	if (self.isFocused) {
1355	// prevent events on the dropdown scrollbar from causing the control to blur
1356	if (e.target === self.$dropdown[0] \|\| e.target.parentNode === self.$dropdown[0]) {
1357	return false;
1358	}
1359	// blur on click outside
1360	if (!self.$control.has(e.target).length && e.target !== self.$control[0]) {
1361	self.blur(e.target);
1362	}
1363	}
1364	});
1365
1366	$window.on(['scroll' + eventNS, 'resize' + eventNS].join(' '), function() {
1367	if (self.isOpen) {
1368	self.positionDropdown.apply(self, arguments);
1369	}
1370	});
1371	$window.on('mousemove' + eventNS, function() {
1372	self.ignoreHover = false;
1373	});
1374
1375	// store original children and tab index so that they can be
1376	// restored when the destroy() method is called.
1377	this.revertSettings = {
1378	$children : $input.children().detach(),
1379	tabindex : $input.attr('tabindex')
1380	};
1381
1382	$input.attr('tabindex', -1).hide().after(self.$wrapper);
1383
1384	if ($.isArray(settings.items)) {
1385	self.setValue(settings.items);
1386	delete settings.items;
1387	}
1388
1389	// feature detect for the validation API
1390	if (SUPPORTS_VALIDITY_API) {
1391	$input.on('invalid' + eventNS, function(e) {
1392	e.preventDefault();
1393	self.isInvalid = true;
1394	self.refreshState();
1395	});
1396	}
1397
1398	self.updateOriginalInput();
1399	self.refreshItems();
1400	self.refreshState();
1401	self.updatePlaceholder();
1402	self.isSetup = true;
1403
1404	if ($input.is(':disabled')) {
1405	self.disable();
1406	}
1407
1408	self.on('change', this.onChange);
1409
1410	$input.data('selectize', self);
1411	$input.addClass('selectized');
1412	self.trigger('initialize');
1413
1414	// preload options
1415	if (settings.preload === true) {
1416	self.onSearchChange('');
1417	}
1418
1419	},
1420
1421	/**
1422	* Sets up default rendering functions.
1423	*/
1424	setupTemplates: function() {
1425	var self = this;
1426	var field_label = self.settings.labelField;
1427	var field_optgroup = self.settings.optgroupLabelField;
1428
1429	var templates = {
1430	'optgroup': function(data) {
1431	return '<div class="optgroup">' + data.html + '</div>';
1432	},
1433	'optgroup_header': function(data, escape) {
1434	return '<div class="optgroup-header">' + escape(data[field_optgroup]) + '</div>';
1435	},
1436	'option': function(data, escape) {
1437	return '<div class="option">' + escape(data[field_label]) + '</div>';
1438	},
1439	'item': function(data, escape) {
1440	return '<div class="item">' + escape(data[field_label]) + '</div>';
1441	},
1442	'option_create': function(data, escape) {
1443	return '<div class="create">Add <strong>' + escape(data.input) + '</strong>…</div>';
1444	}
1445	};
1446
1447	self.settings.render = $.extend({}, templates, self.settings.render);
1448	},
1449
1450	/**
1451	* Maps fired events to callbacks provided
1452	* in the settings used when creating the control.
1453	*/
1454	setupCallbacks: function() {
1455	var key, fn, callbacks = {
1456	'initialize' : 'onInitialize',
1457	'change' : 'onChange',
1458	'item_add' : 'onItemAdd',
1459	'item_remove' : 'onItemRemove',
1460	'clear' : 'onClear',
1461	'option_add' : 'onOptionAdd',
1462	'option_remove' : 'onOptionRemove',
1463	'option_clear' : 'onOptionClear',
1464	'optgroup_add' : 'onOptionGroupAdd',
1465	'optgroup_remove' : 'onOptionGroupRemove',
1466	'optgroup_clear' : 'onOptionGroupClear',
1467	'dropdown_open' : 'onDropdownOpen',
1468	'dropdown_close' : 'onDropdownClose',
1469	'type' : 'onType',
1470	'load' : 'onLoad',
1471	'focus' : 'onFocus',
1472	'blur' : 'onBlur'
1473	};
1474
1475	for (key in callbacks) {
1476	if (callbacks.hasOwnProperty(key)) {
1477	fn = this.settings[callbacks[key]];
1478	if (fn) this.on(key, fn);
1479	}
1480	}
1481	},
1482
1483	/**
1484	* Triggered when the main control element
1485	* has a click event.
1486	*
1487	* @param {object} e
1488	* @return {boolean}
1489	*/
1490	onClick: function(e) {
1491	var self = this;
1492
1493	// necessary for mobile webkit devices (manual focus triggering
1494	// is ignored unless invoked within a click event)
1495	if (!self.isFocused) {
1496	self.focus();
1497	e.preventDefault();
1498	}
1499	},
1500
1501	/**
1502	* Triggered when the main control element
1503	* has a mouse down event.
1504	*
1505	* @param {object} e
1506	* @return {boolean}
1507	*/
1508	onMouseDown: function(e) {
1509	var self = this;
1510	var defaultPrevented = e.isDefaultPrevented();
1511	var $target = $(e.target);
1512
1513	if (self.isFocused) {
1514	// retain focus by preventing native handling. if the
1515	// event target is the input it should not be modified.
1516	// otherwise, text selection within the input won't work.
1517	if (e.target !== self.$control_input[0]) {
1518	if (self.settings.mode === 'single') {
1519	// toggle dropdown
1520	self.isOpen ? self.close() : self.open();
1521	} else if (!defaultPrevented) {
1522	self.setActiveItem(null);
1523	}
1524	return false;
1525	}
1526	} else {
1527	// give control focus
1528	if (!defaultPrevented) {
1529	window.setTimeout(function() {
1530	self.focus();
1531	}, 0);
1532	}
1533	}
1534	},
1535
1536	/**
1537	* Triggered when the value of the control has been changed.
1538	* This should propagate the event to the original DOM
1539	* input / select element.
1540	*/
1541	onChange: function() {
1542	this.$input.trigger('change');
1543	},
1544
1545	/**
1546	* Triggered on <input> paste.
1547	*
1548	* @param {object} e
1549	* @returns {boolean}
1550	*/
1551	onPaste: function(e) {
1552	var self = this;
1553
1554	if (self.isFull() \|\| self.isInputHidden \|\| self.isLocked) {
1555	e.preventDefault();
1556	return;
1557	}
1558
1559	// If a regex or string is included, this will split the pasted
1560	// input and create Items for each separate value
1561	if (self.settings.splitOn) {
1562
1563	// Wait for pasted text to be recognized in value
1564	setTimeout(function() {
1565	var pastedText = self.$control_input.val();
1566	if(!pastedText.match(self.settings.splitOn)){ return }
1567
1568	var splitInput = $.trim(pastedText).split(self.settings.splitOn);
1569	for (var i = 0, n = splitInput.length; i < n; i++) {
1570	self.createItem(splitInput[i]);
1571	}
1572	}, 0);
1573	}
1574	},
1575
1576	/**
1577	* Triggered on <input> keypress.
1578	*
1579	* @param {object} e
1580	* @returns {boolean}
1581	*/
1582	onKeyPress: function(e) {
1583	if (this.isLocked) return e && e.preventDefault();
1584	var character = String.fromCharCode(e.keyCode \|\| e.which);
1585	if (this.settings.create && this.settings.mode === 'multi' && character === this.settings.delimiter) {
1586	this.createItem();
1587	e.preventDefault();
1588	return false;
1589	}
1590	},
1591
1592	/**
1593	* Triggered on <input> keydown.
1594	*
1595	* @param {object} e
1596	* @returns {boolean}
1597	*/
1598	onKeyDown: function(e) {
1599	var isInput = e.target === this.$control_input[0];
1600	var self = this;
1601
1602	if (self.isLocked) {
1603	if (e.keyCode !== KEY_TAB) {
1604	e.preventDefault();
1605	}
1606	return;
1607	}
1608
1609	switch (e.keyCode) {
1610	case KEY_A:
1611	if (self.isCmdDown) {
1612	self.selectAll();
1613	return;
1614	}
1615	break;
1616	case KEY_ESC:
1617	if (self.isOpen) {
1618	e.preventDefault();
1619	e.stopPropagation();
1620	self.close();
1621	}
1622	return;
1623	case KEY_N:
1624	if (!e.ctrlKey \|\| e.altKey) break;
1625	case KEY_DOWN:
1626	if (!self.isOpen && self.hasOptions) {
1627	self.open();
1628	} else if (self.$activeOption) {
1629	self.ignoreHover = true;
1630	var $next = self.getAdjacentOption(self.$activeOption, 1);
1631	if ($next.length) self.setActiveOption($next, true, true);
1632	}
1633	e.preventDefault();
1634	return;
1635	case KEY_P:
1636	if (!e.ctrlKey \|\| e.altKey) break;
1637	case KEY_UP:
1638	if (self.$activeOption) {
1639	self.ignoreHover = true;
1640	var $prev = self.getAdjacentOption(self.$activeOption, -1);
1641	if ($prev.length) self.setActiveOption($prev, true, true);
1642	}
1643	e.preventDefault();
1644	return;
1645	case KEY_RETURN:
1646	if (self.isOpen && self.$activeOption) {
1647	self.onOptionSelect({currentTarget: self.$activeOption});
1648	e.preventDefault();
1649	}
1650	return;
1651	case KEY_LEFT:
1652	self.advanceSelection(-1, e);
1653	return;
1654	case KEY_RIGHT:
1655	self.advanceSelection(1, e);
1656	return;
1657	case KEY_TAB:
1658	if (self.settings.selectOnTab && self.isOpen && self.$activeOption) {
1659	self.onOptionSelect({currentTarget: self.$activeOption});
1660
1661	// Default behaviour is to jump to the next field, we only want this
1662	// if the current field doesn't accept any more entries
1663	if (!self.isFull()) {
1664	e.preventDefault();
1665	}
1666	}
1667	if (self.settings.create && self.createItem()) {
1668	e.preventDefault();
1669	}
1670	return;
1671	case KEY_BACKSPACE:
1672	case KEY_DELETE:
1673	self.deleteSelection(e);
1674	return;
1675	}
1676
1677	if ((self.isFull() \|\| self.isInputHidden) && !(IS_MAC ? e.metaKey : e.ctrlKey)) {
1678	e.preventDefault();
1679	return;
1680	}
1681	},
1682
1683	/**
1684	* Triggered on <input> keyup.
1685	*
1686	* @param {object} e
1687	* @returns {boolean}
1688	*/
1689	onKeyUp: function(e) {
1690	var self = this;
1691
1692	if (self.isLocked) return e && e.preventDefault();
1693	var value = self.$control_input.val() \|\| '';
1694	if (self.lastValue !== value) {
1695	self.lastValue = value;
1696	self.onSearchChange(value);
1697	self.refreshOptions();
1698	self.trigger('type', value);
1699	}
1700	},
1701
1702	/**
1703	* Invokes the user-provide option provider / loader.
1704	*
1705	* Note: this function is debounced in the Selectize
1706	* constructor (by `settings.loadThrottle` milliseconds)
1707	*
1708	* @param {string} value
1709	*/
1710	onSearchChange: function(value) {
1711	var self = this;
1712	var fn = self.settings.load;
1713	if (!fn) return;
1714	if (self.loadedSearches.hasOwnProperty(value)) return;
1715	self.loadedSearches[value] = true;
1716	self.load(function(callback) {
1717	fn.apply(self, [value, callback]);
1718	});
1719	},
1720
1721	/**
1722	* Triggered on <input> focus.
1723	*
1724	* @param {object} e (optional)
1725	* @returns {boolean}
1726	*/
1727	onFocus: function(e) {
1728	var self = this;
1729	var wasFocused = self.isFocused;
1730
1731	if (self.isDisabled) {
1732	self.blur();
1733	e && e.preventDefault();
1734	return false;
1735	}
1736
1737	if (self.ignoreFocus) return;
1738	self.isFocused = true;
1739	if (self.settings.preload === 'focus') self.onSearchChange('');
1740
1741	if (!wasFocused) self.trigger('focus');
1742
1743	if (!self.$activeItems.length) {
1744	self.showInput();
1745	self.setActiveItem(null);
1746	self.refreshOptions(!!self.settings.openOnFocus);
1747	}
1748
1749	self.refreshState();
1750	},
1751
1752	/**
1753	* Triggered on <input> blur.
1754	*
1755	* @param {object} e
1756	* @param {Element} dest
1757	*/
1758	onBlur: function(e, dest) {
1759	var self = this;
1760	if (!self.isFocused) return;
1761	self.isFocused = false;
1762
1763	if (self.ignoreFocus) {
1764	return;
1765	} else if (!self.ignoreBlur && document.activeElement === self.$dropdown_content[0]) {
1766	// necessary to prevent IE closing the dropdown when the scrollbar is clicked
1767	self.ignoreBlur = true;
1768	self.onFocus(e);
1769	return;
1770	}
1771
1772	var deactivate = function() {
1773	self.close();
1774	self.setTextboxValue('');
1775	self.setActiveItem(null);
1776	self.setActiveOption(null);
1777	self.setCaret(self.items.length);
1778	self.refreshState();
1779
1780	// IE11 bug: element still marked as active
1781	dest && dest.focus && dest.focus();
1782
1783	self.ignoreFocus = false;
1784	self.trigger('blur');
1785	};
1786
1787	self.ignoreFocus = true;
1788	if (self.settings.create && self.settings.createOnBlur) {
1789	self.createItem(null, false, deactivate);
1790	} else {
1791	deactivate();
1792	}
1793	},
1794
1795	/**
1796	* Triggered when the user rolls over
1797	* an option in the autocomplete dropdown menu.
1798	*
1799	* @param {object} e
1800	* @returns {boolean}
1801	*/
1802	onOptionHover: function(e) {
1803	if (this.ignoreHover) return;
1804	this.setActiveOption(e.currentTarget, false);
1805	},
1806
1807	/**
1808	* Triggered when the user clicks on an option
1809	* in the autocomplete dropdown menu.
1810	*
1811	* @param {object} e
1812	* @returns {boolean}
1813	*/
1814	onOptionSelect: function(e) {
1815	var value, $target, $option, self = this;
1816
1817	if (e.preventDefault) {
1818	e.preventDefault();
1819	e.stopPropagation();
1820	}
1821
1822	$target = $(e.currentTarget);
1823	if ($target.hasClass('create')) {
1824	self.createItem(null, function() {
1825	if (self.settings.closeAfterSelect) {
1826	self.close();
1827	}
1828	});
1829	} else {
1830	value = $target.attr('data-value');
1831	if (typeof value !== 'undefined') {
1832	self.lastQuery = null;
1833	self.setTextboxValue('');
1834	self.addItem(value);
1835	if (self.settings.closeAfterSelect) {
1836	self.close();
1837	} else if (!self.settings.hideSelected && e.type && /mouse/.test(e.type)) {
1838	self.setActiveOption(self.getOption(value));
1839	}
1840	}
1841	}
1842	},
1843
1844	/**
1845	* Triggered when the user clicks on an item
1846	* that has been selected.
1847	*
1848	* @param {object} e
1849	* @returns {boolean}
1850	*/
1851	onItemSelect: function(e) {
1852	var self = this;
1853
1854	if (self.isLocked) return;
1855	if (self.settings.mode === 'multi') {
1856	e.preventDefault();
1857	self.setActiveItem(e.currentTarget, e);
1858	}
1859	},
1860
1861	/**
1862	* Invokes the provided method that provides
1863	* results to a callback---which are then added
1864	* as options to the control.
1865	*
1866	* @param {function} fn
1867	*/
1868	load: function(fn) {
1869	var self = this;
1870	var $wrapper = self.$wrapper.addClass(self.settings.loadingClass);
1871
1872	self.loading++;
1873	fn.apply(self, [function(results) {
1874	self.loading = Math.max(self.loading - 1, 0);
1875	if (results && results.length) {
1876	self.addOption(results);
1877	self.refreshOptions(self.isFocused && !self.isInputHidden);
1878	}
1879	if (!self.loading) {
1880	$wrapper.removeClass(self.settings.loadingClass);
1881	}
1882	self.trigger('load', results);
1883	}]);
1884	},
1885
1886	/**
1887	* Sets the input field of the control to the specified value.
1888	*
1889	* @param {string} value
1890	*/
1891	setTextboxValue: function(value) {
1892	var $input = this.$control_input;
1893	var changed = $input.val() !== value;
1894	if (changed) {
1895	$input.val(value).triggerHandler('update');
1896	this.lastValue = value;
1897	}
1898	},
1899
1900	/**
1901	* Returns the value of the control. If multiple items
1902	* can be selected (e.g. <select multiple>), this returns
1903	* an array. If only one item can be selected, this
1904	* returns a string.
1905	*
1906	* @returns {mixed}
1907	*/
1908	getValue: function() {
1909	if (this.tagType === TAG_SELECT && this.$input.attr('multiple')) {
1910	return this.items;
1911	} else {
1912	return this.items.join(this.settings.delimiter);
1913	}
1914	},
1915
1916	/**
1917	* Resets the selected items to the given value.
1918	*
1919	* @param {mixed} value
1920	*/
1921	setValue: function(value, silent) {
1922	var events = silent ? [] : ['change'];
1923
1924	debounce_events(this, events, function() {
1925	this.clear(silent);
1926	this.addItems(value, silent);
1927	});
1928	},
1929
1930	/**
1931	* Sets the selected item.
1932	*
1933	* @param {object} $item
1934	* @param {object} e (optional)
1935	*/
1936	setActiveItem: function($item, e) {
1937	var self = this;
1938	var eventName;
1939	var i, idx, begin, end, item, swap;
1940	var $last;
1941
1942	if (self.settings.mode === 'single') return;
1943	$item = $($item);
1944
1945	// clear the active selection
1946	if (!$item.length) {
1947	$(self.$activeItems).removeClass('active');
1948	self.$activeItems = [];
1949	if (self.isFocused) {
1950	self.showInput();
1951	}
1952	return;
1953	}
1954
1955	// modify selection
1956	eventName = e && e.type.toLowerCase();
1957
1958	if (eventName === 'mousedown' && self.isShiftDown && self.$activeItems.length) {
1959	$last = self.$control.children('.active:last');
1960	begin = Array.prototype.indexOf.apply(self.$control[0].childNodes, [$last[0]]);
1961	end = Array.prototype.indexOf.apply(self.$control[0].childNodes, [$item[0]]);
1962	if (begin > end) {
1963	swap = begin;
1964	begin = end;
1965	end = swap;
1966	}
1967	for (i = begin; i <= end; i++) {
1968	item = self.$control[0].childNodes[i];
1969	if (self.$activeItems.indexOf(item) === -1) {
1970	$(item).addClass('active');
1971	self.$activeItems.push(item);
1972	}
1973	}
1974	e.preventDefault();
1975	} else if ((eventName === 'mousedown' && self.isCtrlDown) \|\| (eventName === 'keydown' && this.isShiftDown)) {
1976	if ($item.hasClass('active')) {
1977	idx = self.$activeItems.indexOf($item[0]);
1978	self.$activeItems.splice(idx, 1);
1979	$item.removeClass('active');
1980	} else {
1981	self.$activeItems.push($item.addClass('active')[0]);
1982	}
1983	} else {
1984	$(self.$activeItems).removeClass('active');
1985	self.$activeItems = [$item.addClass('active')[0]];
1986	}
1987
1988	// ensure control has focus
1989	self.hideInput();
1990	if (!this.isFocused) {
1991	self.focus();
1992	}
1993	},
1994
1995	/**
1996	* Sets the selected item in the dropdown menu
1997	* of available options.
1998	*
1999	* @param {object} $object
2000	* @param {boolean} scroll
2001	* @param {boolean} animate
2002	*/
2003	setActiveOption: function($option, scroll, animate) {
2004	var height_menu, height_item, y;
2005	var scroll_top, scroll_bottom;
2006	var self = this;
2007
2008	if (self.$activeOption) self.$activeOption.removeClass('active');
2009	self.$activeOption = null;
2010
2011	$option = $($option);
2012	if (!$option.length) return;
2013
2014	self.$activeOption = $option.addClass('active');
2015
2016	if (scroll \|\| !isset(scroll)) {
2017
2018	height_menu = self.$dropdown_content.height();
2019	height_item = self.$activeOption.outerHeight(true);
2020	scroll = self.$dropdown_content.scrollTop() \|\| 0;
2021	y = self.$activeOption.offset().top - self.$dropdown_content.offset().top + scroll;
2022	scroll_top = y;
2023	scroll_bottom = y - height_menu + height_item;
2024
2025	if (y + height_item > height_menu + scroll) {
2026	self.$dropdown_content.stop().animate({scrollTop: scroll_bottom}, animate ? self.settings.scrollDuration : 0);
2027	} else if (y < scroll) {
2028	self.$dropdown_content.stop().animate({scrollTop: scroll_top}, animate ? self.settings.scrollDuration : 0);
2029	}
2030
2031	}
2032	},
2033
2034	/**
2035	* Selects all items (CTRL + A).
2036	*/
2037	selectAll: function() {
2038	var self = this;
2039	if (self.settings.mode === 'single') return;
2040
2041	self.$activeItems = Array.prototype.slice.apply(self.$control.children(':not(input)').addClass('active'));
2042	if (self.$activeItems.length) {
2043	self.hideInput();
2044	self.close();
2045	}
2046	self.focus();
2047	},
2048
2049	/**
2050	* Hides the input element out of view, while
2051	* retaining its focus.
2052	*/
2053	hideInput: function() {
2054	var self = this;
2055
2056	self.setTextboxValue('');
2057	self.$control_input.css({opacity: 0, position: 'absolute', left: self.rtl ? 10000 : -10000});
2058	self.isInputHidden = true;
2059	},
2060
2061	/**
2062	* Restores input visibility.
2063	*/
2064	showInput: function() {
2065	this.$control_input.css({opacity: 1, position: 'relative', left: 0});
2066	this.isInputHidden = false;
2067	},
2068
2069	/**
2070	* Gives the control focus.
2071	*/
2072	focus: function() {
2073	var self = this;
2074	if (self.isDisabled) return;
2075
2076	self.ignoreFocus = true;
2077	self.$control_input[0].focus();
2078	window.setTimeout(function() {
2079	self.ignoreFocus = false;
2080	self.onFocus();
2081	}, 0);
2082	},
2083
2084	/**
2085	* Forces the control out of focus.
2086	*
2087	* @param {Element} dest
2088	*/
2089	blur: function(dest) {
2090	this.$control_input[0].blur();
2091	this.onBlur(null, dest);
2092	},
2093
2094	/**
2095	* Returns a function that scores an object
2096	* to show how good of a match it is to the
2097	* provided query.
2098	*
2099	* @param {string} query
2100	* @param {object} options
2101	* @return {function}
2102	*/
2103	getScoreFunction: function(query) {
2104	return this.sifter.getScoreFunction(query, this.getSearchOptions());
2105	},
2106
2107	/**
2108	* Returns search options for sifter (the system
2109	* for scoring and sorting results).
2110	*
2111	* @see https://github.com/brianreavis/sifter.js
2112	* @return {object}
2113	*/
2114	getSearchOptions: function() {
2115	var settings = this.settings;
2116	var sort = settings.sortField;
2117	if (typeof sort === 'string') {
2118	sort = [{field: sort}];
2119	}
2120
2121	return {
2122	fields : settings.searchField,
2123	conjunction : settings.searchConjunction,
2124	sort : sort
2125	};
2126	},
2127
2128	/**
2129	* Searches through available options and returns
2130	* a sorted array of matches.
2131	*
2132	* Returns an object containing:
2133	*
2134	* - query {string}
2135	* - tokens {array}
2136	* - total {int}
2137	* - items {array}
2138	*
2139	* @param {string} query
2140	* @returns {object}
2141	*/
2142	search: function(query) {
2143	var i, value, score, result, calculateScore;
2144	var self = this;
2145	var settings = self.settings;
2146	var options = this.getSearchOptions();
2147
2148	// validate user-provided result scoring function
2149	if (settings.score) {
2150	calculateScore = self.settings.score.apply(this, [query]);
2151	if (typeof calculateScore !== 'function') {
2152	throw new Error('Selectize "score" setting must be a function that returns a function');
2153	}
2154	}
2155
2156	// perform search
2157	if (query !== self.lastQuery) {
2158	self.lastQuery = query;
2159	result = self.sifter.search(query, $.extend(options, {score: calculateScore}));
2160	self.currentResults = result;
2161	} else {
2162	result = $.extend(true, {}, self.currentResults);
2163	}
2164
2165	// filter out selected items
2166	if (settings.hideSelected) {
2167	for (i = result.items.length - 1; i >= 0; i--) {
2168	if (self.items.indexOf(hash_key(result.items[i].id)) !== -1) {
2169	result.items.splice(i, 1);
2170	}
2171	}
2172	}
2173
2174	return result;
2175	},
2176
2177	/**
2178	* Refreshes the list of available options shown
2179	* in the autocomplete dropdown menu.
2180	*
2181	* @param {boolean} triggerDropdown
2182	*/
2183	refreshOptions: function(triggerDropdown) {
2184	var i, j, k, n, groups, groups_order, option, option_html, optgroup, optgroups, html, html_children, has_create_option;
2185	var $active, $active_before, $create;
2186
2187	if (typeof triggerDropdown === 'undefined') {
2188	triggerDropdown = true;
2189	}
2190
2191	var self = this;
2192	var query = $.trim(self.$control_input.val());
2193	var results = self.search(query);
2194	var $dropdown_content = self.$dropdown_content;
2195	var active_before = self.$activeOption && hash_key(self.$activeOption.attr('data-value'));
2196
2197	// build markup
2198	n = results.items.length;
2199	if (typeof self.settings.maxOptions === 'number') {
2200	n = Math.min(n, self.settings.maxOptions);
2201	}
2202
2203	// render and group available options individually
2204	groups = {};
2205	groups_order = [];
2206
2207	for (i = 0; i < n; i++) {
2208	option = self.options[results.items[i].id];
2209	option_html = self.render('option', option);
2210	optgroup = option[self.settings.optgroupField] \|\| '';
2211	optgroups = $.isArray(optgroup) ? optgroup : [optgroup];
2212
2213	for (j = 0, k = optgroups && optgroups.length; j < k; j++) {
2214	optgroup = optgroups[j];
2215	if (!self.optgroups.hasOwnProperty(optgroup)) {
2216	optgroup = '';
2217	}
2218	if (!groups.hasOwnProperty(optgroup)) {
2219	groups[optgroup] = document.createDocumentFragment();
2220	groups_order.push(optgroup);
2221	}
2222	groups[optgroup].appendChild(option_html);
2223	}
2224	}
2225
2226	// sort optgroups
2227	if (this.settings.lockOptgroupOrder) {
2228	groups_order.sort(function(a, b) {
2229	var a_order = self.optgroups[a].$order \|\| 0;
2230	var b_order = self.optgroups[b].$order \|\| 0;
2231	return a_order - b_order;
2232	});
2233	}
2234
2235	// render optgroup headers & join groups
2236	html = document.createDocumentFragment();
2237	for (i = 0, n = groups_order.length; i < n; i++) {
2238	optgroup = groups_order[i];
2239	if (self.optgroups.hasOwnProperty(optgroup) && groups[optgroup].childNodes.length) {
2240	// render the optgroup header and options within it,
2241	// then pass it to the wrapper template
2242	html_children = document.createDocumentFragment();
2243	html_children.appendChild(self.render('optgroup_header', self.optgroups[optgroup]));
2244	html_children.appendChild(groups[optgroup]);
2245
2246	html.appendChild(self.render('optgroup', $.extend({}, self.optgroups[optgroup], {
2247	html: domToString(html_children),
2248	dom: html_children
2249	})));
2250	} else {
2251	html.appendChild(groups[optgroup]);
2252	}
2253	}
2254
2255	$dropdown_content.html(html);
2256
2257	// highlight matching terms inline
2258	if (self.settings.highlight && results.query.length && results.tokens.length) {
2259	$dropdown_content.removeHighlight();
2260	for (i = 0, n = results.tokens.length; i < n; i++) {
2261	highlight($dropdown_content, results.tokens[i].regex);
2262	}
2263	}
2264
2265	// add "selected" class to selected options
2266	if (!self.settings.hideSelected) {
2267	for (i = 0, n = self.items.length; i < n; i++) {
2268	self.getOption(self.items[i]).addClass('selected');
2269	}
2270	}
2271
2272	// add create option
2273	has_create_option = self.canCreate(query);
2274	if (has_create_option) {
2275	$dropdown_content.prepend(self.render('option_create', {input: query}));
2276	$create = $($dropdown_content[0].childNodes[0]);
2277	}
2278
2279	// activate
2280	self.hasOptions = results.items.length > 0 \|\| has_create_option;
2281	if (self.hasOptions) {
2282	if (results.items.length > 0) {
2283	$active_before = active_before && self.getOption(active_before);
2284	if ($active_before && $active_before.length) {
2285	$active = $active_before;
2286	} else if (self.settings.mode === 'single' && self.items.length) {
2287	$active = self.getOption(self.items[0]);
2288	}
2289	if (!$active \|\| !$active.length) {
2290	if ($create && !self.settings.addPrecedence) {
2291	$active = self.getAdjacentOption($create, 1);
2292	} else {
2293	$active = $dropdown_content.find('[data-selectable]:first');
2294	}
2295	}
2296	} else {
2297	$active = $create;
2298	}
2299	self.setActiveOption($active);
2300	if (triggerDropdown && !self.isOpen) { self.open(); }
2301	} else {
2302	self.setActiveOption(null);
2303	if (triggerDropdown && self.isOpen) { self.close(); }
2304	}
2305	},
2306
2307	/**
2308	* Adds an available option. If it already exists,
2309	* nothing will happen. Note: this does not refresh
2310	* the options list dropdown (use `refreshOptions`
2311	* for that).
2312	*
2313	* Usage:
2314	*
2315	* this.addOption(data)
2316	*
2317	* @param {object\|array} data
2318	*/
2319	addOption: function(data) {
2320	var i, n, value, self = this;
2321
2322	if ($.isArray(data)) {
2323	for (i = 0, n = data.length; i < n; i++) {
2324	self.addOption(data[i]);
2325	}
2326	return;
2327	}
2328
2329	if (value = self.registerOption(data)) {
2330	self.userOptions[value] = true;
2331	self.lastQuery = null;
2332	self.trigger('option_add', value, data);
2333	}
2334	},
2335
2336	/**
2337	* Registers an option to the pool of options.
2338	*
2339	* @param {object} data
2340	* @return {boolean\|string}
2341	*/
2342	registerOption: function(data) {
2343	var key = hash_key(data[this.settings.valueField]);
2344	if (typeof key === 'undefined' \|\| key === null \|\| this.options.hasOwnProperty(key)) return false;
2345	data.$order = data.$order \|\| ++this.order;
2346	this.options[key] = data;
2347	return key;
2348	},
2349
2350	/**
2351	* Registers an option group to the pool of option groups.
2352	*
2353	* @param {object} data
2354	* @return {boolean\|string}
2355	*/
2356	registerOptionGroup: function(data) {
2357	var key = hash_key(data[this.settings.optgroupValueField]);
2358	if (!key) return false;
2359
2360	data.$order = data.$order \|\| ++this.order;
2361	this.optgroups[key] = data;
2362	return key;
2363	},
2364
2365	/**
2366	* Registers a new optgroup for options
2367	* to be bucketed into.
2368	*
2369	* @param {string} id
2370	* @param {object} data
2371	*/
2372	addOptionGroup: function(id, data) {
2373	data[this.settings.optgroupValueField] = id;
2374	if (id = this.registerOptionGroup(data)) {
2375	this.trigger('optgroup_add', id, data);
2376	}
2377	},
2378
2379	/**
2380	* Removes an existing option group.
2381	*
2382	* @param {string} id
2383	*/
2384	removeOptionGroup: function(id) {
2385	if (this.optgroups.hasOwnProperty(id)) {
2386	delete this.optgroups[id];
2387	this.renderCache = {};
2388	this.trigger('optgroup_remove', id);
2389	}
2390	},
2391
2392	/**
2393	* Clears all existing option groups.
2394	*/
2395	clearOptionGroups: function() {
2396	this.optgroups = {};
2397	this.renderCache = {};
2398	this.trigger('optgroup_clear');
2399	},
2400
2401	/**
2402	* Updates an option available for selection. If
2403	* it is visible in the selected items or options
2404	* dropdown, it will be re-rendered automatically.
2405	*
2406	* @param {string} value
2407	* @param {object} data
2408	*/
2409	updateOption: function(value, data) {
2410	var self = this;
2411	var $item, $item_new;
2412	var value_new, index_item, cache_items, cache_options, order_old;
2413
2414	value = hash_key(value);
2415	value_new = hash_key(data[self.settings.valueField]);
2416
2417	// sanity checks
2418	if (value === null) return;
2419	if (!self.options.hasOwnProperty(value)) return;
2420	if (typeof value_new !== 'string') throw new Error('Value must be set in option data');
2421
2422	order_old = self.options[value].$order;
2423
2424	// update references
2425	if (value_new !== value) {
2426	delete self.options[value];
2427	index_item = self.items.indexOf(value);
2428	if (index_item !== -1) {
2429	self.items.splice(index_item, 1, value_new);
2430	}
2431	}
2432	data.$order = data.$order \|\| order_old;
2433	self.options[value_new] = data;
2434
2435	// invalidate render cache
2436	cache_items = self.renderCache['item'];
2437	cache_options = self.renderCache['option'];
2438
2439	if (cache_items) {
2440	delete cache_items[value];
2441	delete cache_items[value_new];
2442	}
2443	if (cache_options) {
2444	delete cache_options[value];
2445	delete cache_options[value_new];
2446	}
2447
2448	// update the item if it's selected
2449	if (self.items.indexOf(value_new) !== -1) {
2450	$item = self.getItem(value);
2451	$item_new = $(self.render('item', data));
2452	if ($item.hasClass('active')) $item_new.addClass('active');
2453	$item.replaceWith($item_new);
2454	}
2455
2456	// invalidate last query because we might have updated the sortField
2457	self.lastQuery = null;
2458
2459	// update dropdown contents
2460	if (self.isOpen) {
2461	self.refreshOptions(false);
2462	}
2463	},
2464
2465	/**
2466	* Removes a single option.
2467	*
2468	* @param {string} value
2469	* @param {boolean} silent
2470	*/
2471	removeOption: function(value, silent) {
2472	var self = this;
2473	value = hash_key(value);
2474
2475	var cache_items = self.renderCache['item'];
2476	var cache_options = self.renderCache['option'];
2477	if (cache_items) delete cache_items[value];
2478	if (cache_options) delete cache_options[value];
2479
2480	delete self.userOptions[value];
2481	delete self.options[value];
2482	self.lastQuery = null;
2483	self.trigger('option_remove', value);
2484	self.removeItem(value, silent);
2485	},
2486
2487	/**
2488	* Clears all options.
2489	*/
2490	clearOptions: function() {
2491	var self = this;
2492
2493	self.loadedSearches = {};
2494	self.userOptions = {};
2495	self.renderCache = {};
2496	self.options = self.sifter.items = {};
2497	self.lastQuery = null;
2498	self.trigger('option_clear');
2499	self.clear();
2500	},
2501
2502	/**
2503	* Returns the jQuery element of the option
2504	* matching the given value.
2505	*
2506	* @param {string} value
2507	* @returns {object}
2508	*/
2509	getOption: function(value) {
2510	return this.getElementWithValue(value, this.$dropdown_content.find('[data-selectable]'));
2511	},
2512
2513	/**
2514	* Returns the jQuery element of the next or
2515	* previous selectable option.
2516	*
2517	* @param {object} $option
2518	* @param {int} direction can be 1 for next or -1 for previous
2519	* @return {object}
2520	*/
2521	getAdjacentOption: function($option, direction) {
2522	var $options = this.$dropdown.find('[data-selectable]');
2523	var index = $options.index($option) + direction;
2524
2525	return index >= 0 && index < $options.length ? $options.eq(index) : $();
2526	},
2527
2528	/**
2529	* Finds the first element with a "data-value" attribute
2530	* that matches the given value.
2531	*
2532	* @param {mixed} value
2533	* @param {object} $els
2534	* @return {object}
2535	*/
2536	getElementWithValue: function(value, $els) {
2537	value = hash_key(value);
2538
2539	if (typeof value !== 'undefined' && value !== null) {
2540	for (var i = 0, n = $els.length; i < n; i++) {
2541	if ($els[i].getAttribute('data-value') === value) {
2542	return $($els[i]);
2543	}
2544	}
2545	}
2546
2547	return $();
2548	},
2549
2550	/**
2551	* Returns the jQuery element of the item
2552	* matching the given value.
2553	*
2554	* @param {string} value
2555	* @returns {object}
2556	*/
2557	getItem: function(value) {
2558	return this.getElementWithValue(value, this.$control.children());
2559	},
2560
2561	/**
2562	* "Selects" multiple items at once. Adds them to the list
2563	* at the current caret position.
2564	*
2565	* @param {string} value
2566	* @param {boolean} silent
2567	*/
2568	addItems: function(values, silent) {
2569	var items = $.isArray(values) ? values : [values];
2570	for (var i = 0, n = items.length; i < n; i++) {
2571	this.isPending = (i < n - 1);
2572	this.addItem(items[i], silent);
2573	}
2574	},
2575
2576	/**
2577	* "Selects" an item. Adds it to the list
2578	* at the current caret position.
2579	*
2580	* @param {string} value
2581	* @param {boolean} silent
2582	*/
2583	addItem: function(value, silent) {
2584	var events = silent ? [] : ['change'];
2585
2586	debounce_events(this, events, function() {
2587	var $item, $option, $options;
2588	var self = this;
2589	var inputMode = self.settings.mode;
2590	var i, active, value_next, wasFull;
2591	value = hash_key(value);
2592
2593	if (self.items.indexOf(value) !== -1) {
2594	if (inputMode === 'single') self.close();
2595	return;
2596	}
2597
2598	if (!self.options.hasOwnProperty(value)) return;
2599	if (inputMode === 'single') self.clear(silent);
2600	if (inputMode === 'multi' && self.isFull()) return;
2601
2602	$item = $(self.render('item', self.options[value]));
2603	wasFull = self.isFull();
2604	self.items.splice(self.caretPos, 0, value);
2605	self.insertAtCaret($item);
2606	if (!self.isPending \|\| (!wasFull && self.isFull())) {
2607	self.refreshState();
2608	}
2609
2610	if (self.isSetup) {
2611	$options = self.$dropdown_content.find('[data-selectable]');
2612
2613	// update menu / remove the option (if this is not one item being added as part of series)
2614	if (!self.isPending) {
2615	$option = self.getOption(value);
2616	value_next = self.getAdjacentOption($option, 1).attr('data-value');
2617	self.refreshOptions(self.isFocused && inputMode !== 'single');
2618	if (value_next) {
2619	self.setActiveOption(self.getOption(value_next));
2620	}
2621	}
2622
2623	// hide the menu if the maximum number of items have been selected or no options are left
2624	if (!$options.length \|\| self.isFull()) {
2625	self.close();
2626	} else {
2627	self.positionDropdown();
2628	}
2629
2630	self.updatePlaceholder();
2631	self.trigger('item_add', value, $item);
2632	self.updateOriginalInput({silent: silent});
2633	}
2634	});
2635	},
2636
2637	/**
2638	* Removes the selected item matching
2639	* the provided value.
2640	*
2641	* @param {string} value
2642	*/
2643	removeItem: function(value, silent) {
2644	var self = this;
2645	var $item, i, idx;
2646
2647	$item = (value instanceof $) ? value : self.getItem(value);
2648	value = hash_key($item.attr('data-value'));
2649	i = self.items.indexOf(value);
2650
2651	if (i !== -1) {
2652	$item.remove();
2653	if ($item.hasClass('active')) {
2654	idx = self.$activeItems.indexOf($item[0]);
2655	self.$activeItems.splice(idx, 1);
2656	}
2657
2658	self.items.splice(i, 1);
2659	self.lastQuery = null;
2660	if (!self.settings.persist && self.userOptions.hasOwnProperty(value)) {
2661	self.removeOption(value, silent);
2662	}
2663
2664	if (i < self.caretPos) {
2665	self.setCaret(self.caretPos - 1);
2666	}
2667
2668	self.refreshState();
2669	self.updatePlaceholder();
2670	self.updateOriginalInput({silent: silent});
2671	self.positionDropdown();
2672	self.trigger('item_remove', value, $item);
2673	}
2674	},
2675
2676	/**
2677	* Invokes the `create` method provided in the
2678	* selectize options that should provide the data
2679	* for the new item, given the user input.
2680	*
2681	* Once this completes, it will be added
2682	* to the item list.
2683	*
2684	* @param {string} value
2685	* @param {boolean} [triggerDropdown]
2686	* @param {function} [callback]
2687	* @return {boolean}
2688	*/
2689	createItem: function(input, triggerDropdown) {
2690	var self = this;
2691	var caret = self.caretPos;
2692	input = input \|\| $.trim(self.$control_input.val() \|\| '');
2693
2694	var callback = arguments[arguments.length - 1];
2695	if (typeof callback !== 'function') callback = function() {};
2696
2697	if (typeof triggerDropdown !== 'boolean') {
2698	triggerDropdown = true;
2699	}
2700
2701	if (!self.canCreate(input)) {
2702	callback();
2703	return false;
2704	}
2705
2706	self.lock();
2707
2708	var setup = (typeof self.settings.create === 'function') ? this.settings.create : function(input) {
2709	var data = {};
2710	data[self.settings.labelField] = input;
2711	data[self.settings.valueField] = input;
2712	return data;
2713	};
2714
2715	var create = once(function(data) {
2716	self.unlock();
2717
2718	if (!data \|\| typeof data !== 'object') return callback();
2719	var value = hash_key(data[self.settings.valueField]);
2720	if (typeof value !== 'string') return callback();
2721
2722	self.setTextboxValue('');
2723	self.addOption(data);
2724	self.setCaret(caret);
2725	self.addItem(value);
2726	self.refreshOptions(triggerDropdown && self.settings.mode !== 'single');
2727	callback(data);
2728	});
2729
2730	var output = setup.apply(this, [input, create]);
2731	if (typeof output !== 'undefined') {
2732	create(output);
2733	}
2734
2735	return true;
2736	},
2737
2738	/**
2739	* Re-renders the selected item lists.
2740	*/
2741	refreshItems: function() {
2742	this.lastQuery = null;
2743
2744	if (this.isSetup) {
2745	this.addItem(this.items);
2746	}
2747
2748	this.refreshState();
2749	this.updateOriginalInput();
2750	},
2751
2752	/**
2753	* Updates all state-dependent attributes
2754	* and CSS classes.
2755	*/
2756	refreshState: function() {
2757	this.refreshValidityState();
2758	this.refreshClasses();
2759	},
2760
2761	/**
2762	* Update the `required` attribute of both input and control input.
2763	*
2764	* The `required` property needs to be activated on the control input
2765	* for the error to be displayed at the right place. `required` also
2766	* needs to be temporarily deactivated on the input since the input is
2767	* hidden and can't show errors.
2768	*/
2769	refreshValidityState: function() {
2770	if (!this.isRequired) return false;
2771
2772	var invalid = !this.items.length;
2773
2774	this.isInvalid = invalid;
2775	this.$control_input.prop('required', invalid);
2776	this.$input.prop('required', !invalid);
2777	},
2778
2779	/**
2780	* Updates all state-dependent CSS classes.
2781	*/
2782	refreshClasses: function() {
2783	var self = this;
2784	var isFull = self.isFull();
2785	var isLocked = self.isLocked;
2786
2787	self.$wrapper
2788	.toggleClass('rtl', self.rtl);
2789
2790	self.$control
2791	.toggleClass('focus', self.isFocused)
2792	.toggleClass('disabled', self.isDisabled)
2793	.toggleClass('required', self.isRequired)
2794	.toggleClass('invalid', self.isInvalid)
2795	.toggleClass('locked', isLocked)
2796	.toggleClass('full', isFull).toggleClass('not-full', !isFull)
2797	.toggleClass('input-active', self.isFocused && !self.isInputHidden)
2798	.toggleClass('dropdown-active', self.isOpen)
2799	.toggleClass('has-options', !$.isEmptyObject(self.options))
2800	.toggleClass('has-items', self.items.length > 0);
2801
2802	self.$control_input.data('grow', !isFull && !isLocked);
2803	},
2804
2805	/**
2806	* Determines whether or not more items can be added
2807	* to the control without exceeding the user-defined maximum.
2808	*
2809	* @returns {boolean}
2810	*/
2811	isFull: function() {
2812	return this.settings.maxItems !== null && this.items.length >= this.settings.maxItems;
2813	},
2814
2815	/**
2816	* Refreshes the original <select> or <input>
2817	* element to reflect the current state.
2818	*/
2819	updateOriginalInput: function(opts) {
2820	var i, n, options, label, self = this;
2821	opts = opts \|\| {};
2822
2823	if (self.tagType === TAG_SELECT) {
2824	options = [];
2825	for (i = 0, n = self.items.length; i < n; i++) {
2826	label = self.options[self.items[i]][self.settings.labelField] \|\| '';
2827	options.push('<option value="' + escape_html(self.items[i]) + '" selected="selected">' + escape_html(label) + '</option>');
2828	}
2829	if (!options.length && !this.$input.attr('multiple')) {
2830	options.push('<option value="" selected="selected"></option>');
2831	}
2832	self.$input.html(options.join(''));
2833	} else {
2834	self.$input.val(self.getValue());
2835	self.$input.attr('value',self.$input.val());
2836	}
2837
2838	if (self.isSetup) {
2839	if (!opts.silent) {
2840	self.trigger('change', self.$input.val());
2841	}
2842	}
2843	},
2844
2845	/**
2846	* Shows/hide the input placeholder depending
2847	* on if there items in the list already.
2848	*/
2849	updatePlaceholder: function() {
2850	if (!this.settings.placeholder) return;
2851	var $input = this.$control_input;
2852
2853	if (this.items.length) {
2854	$input.removeAttr('placeholder');
2855	} else {
2856	$input.attr('placeholder', this.settings.placeholder);
2857	}
2858	$input.triggerHandler('update', {force: true});
2859	},
2860
2861	/**
2862	* Shows the autocomplete dropdown containing
2863	* the available options.
2864	*/
2865	open: function() {
2866	var self = this;
2867
2868	if (self.isLocked \|\| self.isOpen \|\| (self.settings.mode === 'multi' && self.isFull())) return;
2869	self.focus();
2870	self.isOpen = true;
2871	self.refreshState();
2872	self.$dropdown.css({visibility: 'hidden', display: 'block'});
2873	self.positionDropdown();
2874	self.$dropdown.css({visibility: 'visible'});
2875	self.trigger('dropdown_open', self.$dropdown);
2876	},
2877
2878	/**
2879	* Closes the autocomplete dropdown menu.
2880	*/
2881	close: function() {
2882	var self = this;
2883	var trigger = self.isOpen;
2884
2885	if (self.settings.mode === 'single' && self.items.length) {
2886	self.hideInput();
2887	self.$control_input.blur(); // close keyboard on iOS
2888	}
2889
2890	self.isOpen = false;
2891	self.$dropdown.hide();
2892	self.setActiveOption(null);
2893	self.refreshState();
2894
2895	if (trigger) self.trigger('dropdown_close', self.$dropdown);
2896	},
2897
2898	/**
2899	* Calculates and applies the appropriate
2900	* position of the dropdown.
2901	*/
2902	positionDropdown: function() {
2903	var $control = this.$control;
2904	var offset = this.settings.dropdownParent === 'body' ? $control.offset() : $control.position();
2905	offset.top += $control.outerHeight(true);
2906
2907	this.$dropdown.css({
2908	width : $control.outerWidth(),
2909	top : offset.top,
2910	left : offset.left
2911	});
2912	},
2913
2914	/**
2915	* Resets / clears all selected items
2916	* from the control.
2917	*
2918	* @param {boolean} silent
2919	*/
2920	clear: function(silent) {
2921	var self = this;
2922
2923	if (!self.items.length) return;
2924	self.$control.children(':not(input)').remove();
2925	self.items = [];
2926	self.lastQuery = null;
2927	self.setCaret(0);
2928	self.setActiveItem(null);
2929	self.updatePlaceholder();
2930	self.updateOriginalInput({silent: silent});
2931	self.refreshState();
2932	self.showInput();
2933	self.trigger('clear');
2934	},
2935
2936	/**
2937	* A helper method for inserting an element
2938	* at the current caret position.
2939	*
2940	* @param {object} $el
2941	*/
2942	insertAtCaret: function($el) {
2943	var caret = Math.min(this.caretPos, this.items.length);
2944	if (caret === 0) {
2945	this.$control.prepend($el);
2946	} else {
2947	$(this.$control[0].childNodes[caret]).before($el);
2948	}
2949	this.setCaret(caret + 1);
2950	},
2951
2952	/**
2953	* Removes the current selected item(s).
2954	*
2955	* @param {object} e (optional)
2956	* @returns {boolean}
2957	*/
2958	deleteSelection: function(e) {
2959	var i, n, direction, selection, values, caret, option_select, $option_select, $tail;
2960	var self = this;
2961
2962	direction = (e && e.keyCode === KEY_BACKSPACE) ? -1 : 1;
2963	selection = getSelection(self.$control_input[0]);
2964
2965	if (self.$activeOption && !self.settings.hideSelected) {
2966	option_select = self.getAdjacentOption(self.$activeOption, -1).attr('data-value');
2967	}
2968
2969	// determine items that will be removed
2970	values = [];
2971
2972	if (self.$activeItems.length) {
2973	$tail = self.$control.children('.active:' + (direction > 0 ? 'last' : 'first'));
2974	caret = self.$control.children(':not(input)').index($tail);
2975	if (direction > 0) { caret++; }
2976
2977	for (i = 0, n = self.$activeItems.length; i < n; i++) {
2978	values.push($(self.$activeItems[i]).attr('data-value'));
2979	}
2980	if (e) {
2981	e.preventDefault();
2982	e.stopPropagation();
2983	}
2984	} else if ((self.isFocused \|\| self.settings.mode === 'single') && self.items.length) {
2985	if (direction < 0 && selection.start === 0 && selection.length === 0) {
2986	values.push(self.items[self.caretPos - 1]);
2987	} else if (direction > 0 && selection.start === self.$control_input.val().length) {
2988	values.push(self.items[self.caretPos]);
2989	}
2990	}
2991
2992	// allow the callback to abort
2993	if (!values.length \|\| (typeof self.settings.onDelete === 'function' && self.settings.onDelete.apply(self, [values]) === false)) {
2994	return false;
2995	}
2996
2997	// perform removal
2998	if (typeof caret !== 'undefined') {
2999	self.setCaret(caret);
3000	}
3001	while (values.length) {
3002	self.removeItem(values.pop());
3003	}
3004
3005	self.showInput();
3006	self.positionDropdown();
3007	self.refreshOptions(true);
3008
3009	// select previous option
3010	if (option_select) {
3011	$option_select = self.getOption(option_select);
3012	if ($option_select.length) {
3013	self.setActiveOption($option_select);
3014	}
3015	}
3016
3017	return true;
3018	},
3019
3020	/**
3021	* Selects the previous / next item (depending
3022	* on the `direction` argument).
3023	*
3024	* > 0 - right
3025	* < 0 - left
3026	*
3027	* @param {int} direction
3028	* @param {object} e (optional)
3029	*/
3030	advanceSelection: function(direction, e) {
3031	var tail, selection, idx, valueLength, cursorAtEdge, $tail;
3032	var self = this;
3033
3034	if (direction === 0) return;
3035	if (self.rtl) direction *= -1;
3036
3037	tail = direction > 0 ? 'last' : 'first';
3038	selection = getSelection(self.$control_input[0]);
3039
3040	if (self.isFocused && !self.isInputHidden) {
3041	valueLength = self.$control_input.val().length;
3042	cursorAtEdge = direction < 0
3043	? selection.start === 0 && selection.length === 0
3044	: selection.start === valueLength;
3045
3046	if (cursorAtEdge && !valueLength) {
3047	self.advanceCaret(direction, e);
3048	}
3049	} else {
3050	$tail = self.$control.children('.active:' + tail);
3051	if ($tail.length) {
3052	idx = self.$control.children(':not(input)').index($tail);
3053	self.setActiveItem(null);
3054	self.setCaret(direction > 0 ? idx + 1 : idx);
3055	}
3056	}
3057	},
3058
3059	/**
3060	* Moves the caret left / right.
3061	*
3062	* @param {int} direction
3063	* @param {object} e (optional)
3064	*/
3065	advanceCaret: function(direction, e) {
3066	var self = this, fn, $adj;
3067
3068	if (direction === 0) return;
3069
3070	fn = direction > 0 ? 'next' : 'prev';
3071	if (self.isShiftDown) {
3072	$adj = self.$control_input[fn]();
3073	if ($adj.length) {
3074	self.hideInput();
3075	self.setActiveItem($adj);
3076	e && e.preventDefault();
3077	}
3078	} else {
3079	self.setCaret(self.caretPos + direction);
3080	}
3081	},
3082
3083	/**
3084	* Moves the caret to the specified index.
3085	*
3086	* @param {int} i
3087	*/
3088	setCaret: function(i) {
3089	var self = this;
3090
3091	if (self.settings.mode === 'single') {
3092	i = self.items.length;
3093	} else {
3094	i = Math.max(0, Math.min(self.items.length, i));
3095	}
3096
3097	if(!self.isPending) {
3098	// the input must be moved by leaving it in place and moving the
3099	// siblings, due to the fact that focus cannot be restored once lost
3100	// on mobile webkit devices
3101	var j, n, fn, $children, $child;
3102	$children = self.$control.children(':not(input)');
3103	for (j = 0, n = $children.length; j < n; j++) {
3104	$child = $($children[j]).detach();
3105	if (j < i) {
3106	self.$control_input.before($child);
3107	} else {
3108	self.$control.append($child);
3109	}
3110	}
3111	}
3112
3113	self.caretPos = i;
3114	},
3115
3116	/**
3117	* Disables user input on the control. Used while
3118	* items are being asynchronously created.
3119	*/
3120	lock: function() {
3121	this.close();
3122	this.isLocked = true;
3123	this.refreshState();
3124	},
3125
3126	/**
3127	* Re-enables user input on the control.
3128	*/
3129	unlock: function() {
3130	this.isLocked = false;
3131	this.refreshState();
3132	},
3133
3134	/**
3135	* Disables user input on the control completely.
3136	* While disabled, it cannot receive focus.
3137	*/
3138	disable: function() {
3139	var self = this;
3140	self.$input.prop('disabled', true);
3141	self.$control_input.prop('disabled', true).prop('tabindex', -1);
3142	self.isDisabled = true;
3143	self.lock();
3144	},
3145
3146	/**
3147	* Enables the control so that it can respond
3148	* to focus and user input.
3149	*/
3150	enable: function() {
3151	var self = this;
3152	self.$input.prop('disabled', false);
3153	self.$control_input.prop('disabled', false).prop('tabindex', self.tabIndex);
3154	self.isDisabled = false;
3155	self.unlock();
3156	},
3157
3158	/**
3159	* Completely destroys the control and
3160	* unbinds all event listeners so that it can
3161	* be garbage collected.
3162	*/
3163	destroy: function() {
3164	var self = this;
3165	var eventNS = self.eventNS;
3166	var revertSettings = self.revertSettings;
3167
3168	self.trigger('destroy');
3169	self.off();
3170	self.$wrapper.remove();
3171	self.$dropdown.remove();
3172
3173	self.$input
3174	.html('')
3175	.append(revertSettings.$children)
3176	.removeAttr('tabindex')
3177	.removeClass('selectized')
3178	.attr({tabindex: revertSettings.tabindex})
3179	.show();
3180
3181	self.$control_input.removeData('grow');
3182	self.$input.removeData('selectize');
3183
3184	$(window).off(eventNS);
3185	$(document).off(eventNS);
3186	$(document.body).off(eventNS);
3187
3188	delete self.$input[0].selectize;
3189	},
3190
3191	/**
3192	* A helper method for rendering "item" and
3193	* "option" templates, given the data.
3194	*
3195	* @param {string} templateName
3196	* @param {object} data
3197	* @returns {string}
3198	*/
3199	render: function(templateName, data) {
3200	var value, id, label;
3201	var html = '';
3202	var cache = false;
3203	var self = this;
3204	var regex_tag = /^[\t \r\n]<([a-z][a-z0-9\-_](?:\:[a-z][a-z0-9\-_]*)?)/i;
3205
3206	if (templateName === 'option' \|\| templateName === 'item') {
3207	value = hash_key(data[self.settings.valueField]);
3208	cache = !!value;
3209	}
3210
3211	// pull markup from cache if it exists
3212	if (cache) {
3213	if (!isset(self.renderCache[templateName])) {
3214	self.renderCache[templateName] = {};
3215	}
3216	if (self.renderCache[templateName].hasOwnProperty(value)) {
3217	return self.renderCache[templateName][value];
3218	}
3219	}
3220
3221	// render markup
3222	html = $(self.settings.render[templateName].apply(this, [data, escape_html]));
3223
3224	// add mandatory attributes
3225	if (templateName === 'option' \|\| templateName === 'option_create') {
3226	html.attr('data-selectable', '');
3227	}
3228	else if (templateName === 'optgroup') {
3229	id = data[self.settings.optgroupValueField] \|\| '';
3230	html.attr('data-group', id);
3231	}
3232	if (templateName === 'option' \|\| templateName === 'item') {
3233	html.attr('data-value', value \|\| '');
3234	}
3235
3236	// update cache
3237	if (cache) {
3238	self.renderCache[templateName][value] = html[0];
3239	}
3240
3241	return html[0];
3242	},
3243
3244	/**
3245	* Clears the render cache for a template. If
3246	* no template is given, clears all render
3247	* caches.
3248	*
3249	* @param {string} templateName
3250	*/
3251	clearCache: function(templateName) {
3252	var self = this;
3253	if (typeof templateName === 'undefined') {
3254	self.renderCache = {};
3255	} else {
3256	delete self.renderCache[templateName];
3257	}
3258	},
3259
3260	/**
3261	* Determines whether or not to display the
3262	* create item prompt, given a user input.
3263	*
3264	* @param {string} input
3265	* @return {boolean}
3266	*/
3267	canCreate: function(input) {
3268	var self = this;
3269	if (!self.settings.create) return false;
3270	var filter = self.settings.createFilter;
3271	return input.length
3272	&& (typeof filter !== 'function' \|\| filter.apply(self, [input]))
3273	&& (typeof filter !== 'string' \|\| new RegExp(filter).test(input))
3274	&& (!(filter instanceof RegExp) \|\| filter.test(input));
3275	}
3276
3277	});
3278
3279
3280	Selectize.count = 0;
3281	Selectize.defaults = {
3282	options: [],
3283	optgroups: [],
3284
3285	plugins: [],
3286	delimiter: ',',
3287	splitOn: null, // regexp or string for splitting up values from a paste command
3288	persist: true,
3289	diacritics: true,
3290	create: false,
3291	createOnBlur: false,
3292	createFilter: null,
3293	highlight: true,
3294	openOnFocus: true,
3295	maxOptions: 1000,
3296	maxItems: null,
3297	hideSelected: null,
3298	addPrecedence: false,
3299	selectOnTab: false,
3300	preload: false,
3301	allowEmptyOption: false,
3302	closeAfterSelect: false,
3303
3304	scrollDuration: 60,
3305	loadThrottle: 300,
3306	loadingClass: 'loading',
3307
3308	dataAttr: 'data-data',
3309	optgroupField: 'optgroup',
3310	valueField: 'value',
3311	labelField: 'text',
3312	optgroupLabelField: 'label',
3313	optgroupValueField: 'value',
3314	lockOptgroupOrder: false,
3315
3316	sortField: '$order',
3317	searchField: ['text'],
3318	searchConjunction: 'and',
3319
3320	mode: null,
3321	wrapperClass: 'selectize-control',
3322	inputClass: 'selectize-input',
3323	dropdownClass: 'selectize-dropdown',
3324	dropdownContentClass: 'selectize-dropdown-content',
3325
3326	dropdownParent: null,
3327
3328	copyClassesToDropdown: true,
3329
3330	/*
3331	load : null, // function(query, callback) { ... }
3332	score : null, // function(search) { ... }
3333	onInitialize : null, // function() { ... }
3334	onChange : null, // function(value) { ... }
3335	onItemAdd : null, // function(value, $item) { ... }
3336	onItemRemove : null, // function(value) { ... }
3337	onClear : null, // function() { ... }
3338	onOptionAdd : null, // function(value, data) { ... }
3339	onOptionRemove : null, // function(value) { ... }
3340	onOptionClear : null, // function() { ... }
3341	onOptionGroupAdd : null, // function(id, data) { ... }
3342	onOptionGroupRemove : null, // function(id) { ... }
3343	onOptionGroupClear : null, // function() { ... }
3344	onDropdownOpen : null, // function($dropdown) { ... }
3345	onDropdownClose : null, // function($dropdown) { ... }
3346	onType : null, // function(str) { ... }
3347	onDelete : null, // function(values) { ... }
3348	*/
3349
3350	render: {
3351	/*
3352	item: null,
3353	optgroup: null,
3354	optgroup_header: null,
3355	option: null,
3356	option_create: null
3357	*/
3358	}
3359	};
3360
3361
3362	$.fn.selectize = function(settings_user) {
3363	var defaults = $.fn.selectize.defaults;
3364	var settings = $.extend({}, defaults, settings_user);
3365	var attr_data = settings.dataAttr;
3366	var field_label = settings.labelField;
3367	var field_value = settings.valueField;
3368	var field_optgroup = settings.optgroupField;
3369	var field_optgroup_label = settings.optgroupLabelField;
3370	var field_optgroup_value = settings.optgroupValueField;
3371
3372	/**
3373	* Initializes selectize from a <input type="text"> element.
3374	*
3375	* @param {object} $input
3376	* @param {object} settings_element
3377	*/
3378	var init_textbox = function($input, settings_element) {
3379	var i, n, values, option;
3380
3381	var data_raw = $input.attr(attr_data);
3382
3383	if (!data_raw) {
3384	var value = $.trim($input.val() \|\| '');
3385	if (!settings.allowEmptyOption && !value.length) return;
3386	values = value.split(settings.delimiter);
3387	for (i = 0, n = values.length; i < n; i++) {
3388	option = {};
3389	option[field_label] = values[i];
3390	option[field_value] = values[i];
3391	settings_element.options.push(option);
3392	}
3393	settings_element.items = values;
3394	} else {
3395	settings_element.options = JSON.parse(data_raw);
3396	for (i = 0, n = settings_element.options.length; i < n; i++) {
3397	settings_element.items.push(settings_element.options[i][field_value]);
3398	}
3399	}
3400	};
3401
3402	/**
3403	* Initializes selectize from a <select> element.
3404	*
3405	* @param {object} $input
3406	* @param {object} settings_element
3407	*/
3408	var init_select = function($input, settings_element) {
3409	var i, n, tagName, $children, order = 0;
3410	var options = settings_element.options;
3411	var optionsMap = {};
3412
3413	var readData = function($el) {
3414	var data = attr_data && $el.attr(attr_data);
3415	if (typeof data === 'string' && data.length) {
3416	return JSON.parse(data);
3417	}
3418	return null;
3419	};
3420
3421	var addOption = function($option, group) {
3422	$option = $($option);
3423
3424	var value = hash_key($option.val());
3425	if (!value && !settings.allowEmptyOption) return;
3426
3427	// if the option already exists, it's probably been
3428	// duplicated in another optgroup. in this case, push
3429	// the current group to the "optgroup" property on the
3430	// existing option so that it's rendered in both places.
3431	if (optionsMap.hasOwnProperty(value)) {
3432	if (group) {
3433	var arr = optionsMap[value][field_optgroup];
3434	if (!arr) {
3435	optionsMap[value][field_optgroup] = group;
3436	} else if (!$.isArray(arr)) {
3437	optionsMap[value][field_optgroup] = [arr, group];
3438	} else {
3439	arr.push(group);
3440	}
3441	}
3442	return;
3443	}
3444
3445	var option = readData($option) \|\| {};
3446	option[field_label] = option[field_label] \|\| $option.text();
3447	option[field_value] = option[field_value] \|\| value;
3448	option[field_optgroup] = option[field_optgroup] \|\| group;
3449
3450	optionsMap[value] = option;
3451	options.push(option);
3452
3453	if ($option.is(':selected')) {
3454	settings_element.items.push(value);
3455	}
3456	};
3457
3458	var addGroup = function($optgroup) {
3459	var i, n, id, optgroup, $options;
3460
3461	$optgroup = $($optgroup);
3462	id = $optgroup.attr('label');
3463
3464	if (id) {
3465	optgroup = readData($optgroup) \|\| {};
3466	optgroup[field_optgroup_label] = id;
3467	optgroup[field_optgroup_value] = id;
3468	settings_element.optgroups.push(optgroup);
3469	}
3470
3471	$options = $('option', $optgroup);
3472	for (i = 0, n = $options.length; i < n; i++) {
3473	addOption($options[i], id);
3474	}
3475	};
3476
3477	settings_element.maxItems = $input.attr('multiple') ? null : 1;
3478
3479	$children = $input.children();
3480	for (i = 0, n = $children.length; i < n; i++) {
3481	tagName = $children[i].tagName.toLowerCase();
3482	if (tagName === 'optgroup') {
3483	addGroup($children[i]);
3484	} else if (tagName === 'option') {
3485	addOption($children[i]);
3486	}
3487	}
3488	};
3489
3490	return this.each(function() {
3491	if (this.selectize) return;
3492
3493	var instance;
3494	var $input = $(this);
3495	var tag_name = this.tagName.toLowerCase();
3496	var placeholder = $input.attr('placeholder') \|\| $input.attr('data-placeholder');
3497	if (!placeholder && !settings.allowEmptyOption) {
3498	placeholder = $input.children('option[value=""]').text();
3499	}
3500
3501	var settings_element = {
3502	'placeholder' : placeholder,
3503	'options' : [],
3504	'optgroups' : [],
3505	'items' : []
3506	};
3507
3508	if (tag_name === 'select') {
3509	init_select($input, settings_element);
3510	} else {
3511	init_textbox($input, settings_element);
3512	}
3513
3514	instance = new Selectize($input, $.extend(true, {}, defaults, settings_element, settings_user));
3515	});
3516	};
3517
3518	$.fn.selectize.defaults = Selectize.defaults;
3519	$.fn.selectize.support = {
3520	validity: SUPPORTS_VALIDITY_API
3521	};
3522
3523
3524	Selectize.define('drag_drop', function(options) {
3525	if (!$.fn.sortable) throw new Error('The "drag_drop" plugin requires jQuery UI "sortable".');
3526	if (this.settings.mode !== 'multi') return;
3527	var self = this;
3528
3529	self.lock = (function() {
3530	var original = self.lock;
3531	return function() {
3532	var sortable = self.$control.data('sortable');
3533	if (sortable) sortable.disable();
3534	return original.apply(self, arguments);
3535	};
3536	})();
3537
3538	self.unlock = (function() {
3539	var original = self.unlock;
3540	return function() {
3541	var sortable = self.$control.data('sortable');
3542	if (sortable) sortable.enable();
3543	return original.apply(self, arguments);
3544	};
3545	})();
3546
3547	self.setup = (function() {
3548	var original = self.setup;
3549	return function() {
3550	original.apply(this, arguments);
3551
3552	var $control = self.$control.sortable({
3553	items: '[data-value]',
3554	forcePlaceholderSize: true,
3555	disabled: self.isLocked,
3556	start: function(e, ui) {
3557	ui.placeholder.css('width', ui.helper.css('width'));
3558	$control.css({overflow: 'visible'});
3559	},
3560	stop: function() {
3561	$control.css({overflow: 'hidden'});
3562	var active = self.$activeItems ? self.$activeItems.slice() : null;
3563	var values = [];
3564	$control.children('[data-value]').each(function() {
3565	values.push($(this).attr('data-value'));
3566	});
3567	self.setValue(values);
3568	self.setActiveItem(active);
3569	}
3570	});
3571	};
3572	})();
3573
3574	});
3575
3576	Selectize.define('dropdown_header', function(options) {
3577	var self = this;
3578
3579	options = $.extend({
3580	title : 'Untitled',
3581	headerClass : 'selectize-dropdown-header',
3582	titleRowClass : 'selectize-dropdown-header-title',
3583	labelClass : 'selectize-dropdown-header-label',
3584	closeClass : 'selectize-dropdown-header-close',
3585
3586	html: function(data) {
3587	return (
3588	'<div class="' + data.headerClass + '">' +
3589	'<div class="' + data.titleRowClass + '">' +
3590	'<span class="' + data.labelClass + '">' + data.title + '</span>' +
3591	'<a href="javascript:void(0)" class="' + data.closeClass + '">×</a>' +
3592	'</div>' +
3593	'</div>'
3594	);
3595	}
3596	}, options);
3597
3598	self.setup = (function() {
3599	var original = self.setup;
3600	return function() {
3601	original.apply(self, arguments);
3602	self.$dropdown_header = $(options.html(options));
3603	self.$dropdown.prepend(self.$dropdown_header);
3604	};
3605	})();
3606
3607	});
3608
3609	Selectize.define('optgroup_columns', function(options) {
3610	var self = this;
3611
3612	options = $.extend({
3613	equalizeWidth : true,
3614	equalizeHeight : true
3615	}, options);
3616
3617	this.getAdjacentOption = function($option, direction) {
3618	var $options = $option.closest('[data-group]').find('[data-selectable]');
3619	var index = $options.index($option) + direction;
3620
3621	return index >= 0 && index < $options.length ? $options.eq(index) : $();
3622	};
3623
3624	this.onKeyDown = (function() {
3625	var original = self.onKeyDown;
3626	return function(e) {
3627	var index, $option, $options, $optgroup;
3628
3629	if (this.isOpen && (e.keyCode === KEY_LEFT \|\| e.keyCode === KEY_RIGHT)) {
3630	self.ignoreHover = true;
3631	$optgroup = this.$activeOption.closest('[data-group]');
3632	index = $optgroup.find('[data-selectable]').index(this.$activeOption);
3633
3634	if(e.keyCode === KEY_LEFT) {
3635	$optgroup = $optgroup.prev('[data-group]');
3636	} else {
3637	$optgroup = $optgroup.next('[data-group]');
3638	}
3639
3640	$options = $optgroup.find('[data-selectable]');
3641	$option = $options.eq(Math.min($options.length - 1, index));
3642	if ($option.length) {
3643	this.setActiveOption($option);
3644	}
3645	return;
3646	}
3647
3648	return original.apply(this, arguments);
3649	};
3650	})();
3651
3652	var getScrollbarWidth = function() {
3653	var div;
3654	var width = getScrollbarWidth.width;
3655	var doc = document;
3656
3657	if (typeof width === 'undefined') {
3658	div = doc.createElement('div');
3659	div.innerHTML = '<div style="width:50px;height:50px;position:absolute;left:-50px;top:-50px;overflow:auto;"><div style="width:1px;height:100px;"></div></div>';
3660	div = div.firstChild;
3661	doc.body.appendChild(div);
3662	width = getScrollbarWidth.width = div.offsetWidth - div.clientWidth;
3663	doc.body.removeChild(div);
3664	}
3665	return width;
3666	};
3667
3668	var equalizeSizes = function() {
3669	var i, n, height_max, width, width_last, width_parent, $optgroups;
3670
3671	$optgroups = $('[data-group]', self.$dropdown_content);
3672	n = $optgroups.length;
3673	if (!n \|\| !self.$dropdown_content.width()) return;
3674
3675	if (options.equalizeHeight) {
3676	height_max = 0;
3677	for (i = 0; i < n; i++) {
3678	height_max = Math.max(height_max, $optgroups.eq(i).height());
3679	}
3680	$optgroups.css({height: height_max});
3681	}
3682
3683	if (options.equalizeWidth) {
3684	width_parent = self.$dropdown_content.innerWidth() - getScrollbarWidth();
3685	width = Math.round(width_parent / n);
3686	$optgroups.css({width: width});
3687	if (n > 1) {
3688	width_last = width_parent - width * (n - 1);
3689	$optgroups.eq(n - 1).css({width: width_last});
3690	}
3691	}
3692	};
3693
3694	if (options.equalizeHeight \|\| options.equalizeWidth) {
3695	hook.after(this, 'positionDropdown', equalizeSizes);
3696	hook.after(this, 'refreshOptions', equalizeSizes);
3697	}
3698
3699
3700	});
3701
3702	Selectize.define('remove_button', function(options) {
3703	options = $.extend({
3704	label : '×',
3705	title : 'Remove',
3706	className : 'remove',
3707	append : true
3708	}, options);
3709
3710	var singleClose = function(thisRef, options) {
3711
3712	options.className = 'remove-single';
3713
3714	var self = thisRef;
3715	var html = '<a href="javascript:void(0)" class="' + options.className + '" tabindex="-1" title="' + escape_html(options.title) + '">' + options.label + '</a>';
3716
3717	/**
3718	* Appends an element as a child (with raw HTML).
3719	*
3720	* @param {string} html_container
3721	* @param {string} html_element
3722	* @return {string}
3723	*/
3724	var append = function(html_container, html_element) {
3725	return html_container + html_element;
3726	};
3727
3728	thisRef.setup = (function() {
3729	var original = self.setup;
3730	return function() {
3731	// override the item rendering method to add the button to each
3732	if (options.append) {
3733	var id = $(self.$input.context).attr('id');
3734	var selectizer = $('#'+id);
3735
3736	var render_item = self.settings.render.item;
3737	self.settings.render.item = function(data) {
3738	return append(render_item.apply(thisRef, arguments), html);
3739	};
3740	}
3741
3742	original.apply(thisRef, arguments);
3743
3744	// add event listener
3745	thisRef.$control.on('click', '.' + options.className, function(e) {
3746	e.preventDefault();
3747	if (self.isLocked) return;
3748
3749	self.clear();
3750	});
3751
3752	};
3753	})();
3754	};
3755
3756	var multiClose = function(thisRef, options) {
3757
3758	var self = thisRef;
3759	var html = '<a href="javascript:void(0)" class="' + options.className + '" tabindex="-1" title="' + escape_html(options.title) + '">' + options.label + '</a>';
3760
3761	/**
3762	* Appends an element as a child (with raw HTML).
3763	*
3764	* @param {string} html_container
3765	* @param {string} html_element
3766	* @return {string}
3767	*/
3768	var append = function(html_container, html_element) {
3769	var pos = html_container.search(/(<\/[^>]+>\s*)$/);
3770	return html_container.substring(0, pos) + html_element + html_container.substring(pos);
3771	};
3772
3773	thisRef.setup = (function() {
3774	var original = self.setup;
3775	return function() {
3776	// override the item rendering method to add the button to each
3777	if (options.append) {
3778	var render_item = self.settings.render.item;
3779	self.settings.render.item = function(data) {
3780	return append(render_item.apply(thisRef, arguments), html);
3781	};
3782	}
3783
3784	original.apply(thisRef, arguments);
3785
3786	// add event listener
3787	thisRef.$control.on('click', '.' + options.className, function(e) {
3788	e.preventDefault();
3789	if (self.isLocked) return;
3790
3791	var $item = $(e.currentTarget).parent();
3792	self.setActiveItem($item);
3793	if (self.deleteSelection()) {
3794	self.setCaret(self.items.length);
3795	}
3796	});
3797
3798	};
3799	})();
3800	};
3801
3802	if (this.settings.mode === 'single') {
3803	singleClose(this, options);
3804	return;
3805	} else {
3806	multiClose(this, options);
3807	}
3808	});
3809
3810
3811	Selectize.define('restore_on_backspace', function(options) {
3812	var self = this;
3813
3814	options.text = options.text \|\| function(option) {
3815	return option[this.settings.labelField];
3816	};
3817
3818	this.onKeyDown = (function() {
3819	var original = self.onKeyDown;
3820	return function(e) {
3821	var index, option;
3822	if (e.keyCode === KEY_BACKSPACE && this.$control_input.val() === '' && !this.$activeItems.length) {
3823	index = this.caretPos - 1;
3824	if (index >= 0 && index < this.items.length) {
3825	option = this.options[this.items[index]];
3826	if (this.deleteSelection(e)) {
3827	this.setTextboxValue(options.text.apply(this, [option]));
3828	this.refreshOptions(true);
3829	}
3830	e.preventDefault();
3831	return;
3832	}
3833	}
3834	return original.apply(this, arguments);
3835	};
3836	})();
3837	});
3838
3839
3840	return Selectize;
3841	}));