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Wed Mar 12 19:30:05 2014 UTC (10 years, 3 months ago) by torben
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initial import
1 // Chosen, a Select Box Enhancer for jQuery and Prototype
2 // by Patrick Filler for Harvest, http://getharvest.com
3 //
4 // Version 1.0.0
5 // Full source at https://github.com/harvesthq/chosen
6 // Copyright (c) 2011 Harvest http://getharvest.com
7
8 // MIT License, https://github.com/harvesthq/chosen/blob/master/LICENSE.md
9 // This file is generated by `grunt build`, do not edit it by hand.
10 (function() {
11 var $, AbstractChosen, Chosen, SelectParser, _ref,
12 __hasProp = {}.hasOwnProperty,
13 __extends = function(child, parent) { for (var key in parent) { if (__hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; };
14
15 SelectParser = (function() {
16 function SelectParser() {
17 this.options_index = 0;
18 this.parsed = [];
19 }
20
21 SelectParser.prototype.add_node = function(child) {
22 if (child.nodeName.toUpperCase() === "OPTGROUP") {
23 return this.add_group(child);
24 } else {
25 return this.add_option(child);
26 }
27 };
28
29 SelectParser.prototype.add_group = function(group) {
30 var group_position, option, _i, _len, _ref, _results;
31
32 group_position = this.parsed.length;
33 this.parsed.push({
34 array_index: group_position,
35 group: true,
36 label: this.escapeExpression(group.label),
37 children: 0,
38 disabled: group.disabled
39 });
40 _ref = group.childNodes;
41 _results = [];
42 for (_i = 0, _len = _ref.length; _i < _len; _i++) {
43 option = _ref[_i];
44 _results.push(this.add_option(option, group_position, group.disabled));
45 }
46 return _results;
47 };
48
49 SelectParser.prototype.add_option = function(option, group_position, group_disabled) {
50 if (option.nodeName.toUpperCase() === "OPTION") {
51 if (option.text !== "") {
52 if (group_position != null) {
53 this.parsed[group_position].children += 1;
54 }
55 this.parsed.push({
56 array_index: this.parsed.length,
57 options_index: this.options_index,
58 value: option.value,
59 text: option.text,
60 html: option.innerHTML,
61 selected: option.selected,
62 disabled: group_disabled === true ? group_disabled : option.disabled,
63 group_array_index: group_position,
64 classes: option.className,
65 style: option.style.cssText
66 });
67 } else {
68 this.parsed.push({
69 array_index: this.parsed.length,
70 options_index: this.options_index,
71 empty: true
72 });
73 }
74 return this.options_index += 1;
75 }
76 };
77
78 SelectParser.prototype.escapeExpression = function(text) {
79 var map, unsafe_chars;
80
81 if ((text == null) || text === false) {
82 return "";
83 }
84 if (!/[\&\<\>\"\'\`]/.test(text)) {
85 return text;
86 }
87 map = {
88 "<": "&lt;",
89 ">": "&gt;",
90 '"': "&quot;",
91 "'": "&#x27;",
92 "`": "&#x60;"
93 };
94 unsafe_chars = /&(?!\w+;)|[\<\>\"\'\`]/g;
95 return text.replace(unsafe_chars, function(chr) {
96 return map[chr] || "&amp;";
97 });
98 };
99
100 return SelectParser;
101
102 })();
103
104 SelectParser.select_to_array = function(select) {
105 var child, parser, _i, _len, _ref;
106
107 parser = new SelectParser();
108 _ref = select.childNodes;
109 for (_i = 0, _len = _ref.length; _i < _len; _i++) {
110 child = _ref[_i];
111 parser.add_node(child);
112 }
113 return parser.parsed;
114 };
115
116 AbstractChosen = (function() {
117 function AbstractChosen(form_field, options) {
118 this.form_field = form_field;
119 this.options = options != null ? options : {};
120 if (!AbstractChosen.browser_is_supported()) {
121 return;
122 }
123 this.is_multiple = this.form_field.multiple;
124 this.set_default_text();
125 this.set_default_values();
126 this.setup();
127 this.set_up_html();
128 this.register_observers();
129 }
130
131 AbstractChosen.prototype.set_default_values = function() {
132 var _this = this;
133
134 this.click_test_action = function(evt) {
135 return _this.test_active_click(evt);
136 };
137 this.activate_action = function(evt) {
138 return _this.activate_field(evt);
139 };
140 this.active_field = false;
141 this.mouse_on_container = false;
142 this.results_showing = false;
143 this.result_highlighted = null;
144 this.result_single_selected = null;
145 this.allow_single_deselect = (this.options.allow_single_deselect != null) && (this.form_field.options[0] != null) && this.form_field.options[0].text === "" ? this.options.allow_single_deselect : false;
146 this.disable_search_threshold = this.options.disable_search_threshold || 0;
147 this.disable_search = this.options.disable_search || false;
148 this.enable_split_word_search = this.options.enable_split_word_search != null ? this.options.enable_split_word_search : true;
149 this.group_search = this.options.group_search != null ? this.options.group_search : true;
150 this.search_contains = this.options.search_contains || false;
151 this.single_backstroke_delete = this.options.single_backstroke_delete != null ? this.options.single_backstroke_delete : true;
152 this.max_selected_options = this.options.max_selected_options || Infinity;
153 this.inherit_select_classes = this.options.inherit_select_classes || false;
154 this.display_selected_options = this.options.display_selected_options != null ? this.options.display_selected_options : true;
155 return this.display_disabled_options = this.options.display_disabled_options != null ? this.options.display_disabled_options : true;
156 };
157
158 AbstractChosen.prototype.set_default_text = function() {
159 if (this.form_field.getAttribute("data-placeholder")) {
160 this.default_text = this.form_field.getAttribute("data-placeholder");
161 } else if (this.is_multiple) {
162 this.default_text = this.options.placeholder_text_multiple || this.options.placeholder_text || AbstractChosen.default_multiple_text;
163 } else {
164 this.default_text = this.options.placeholder_text_single || this.options.placeholder_text || AbstractChosen.default_single_text;
165 }
166 return this.results_none_found = this.form_field.getAttribute("data-no_results_text") || this.options.no_results_text || AbstractChosen.default_no_result_text;
167 };
168
169 AbstractChosen.prototype.mouse_enter = function() {
170 return this.mouse_on_container = true;
171 };
172
173 AbstractChosen.prototype.mouse_leave = function() {
174 return this.mouse_on_container = false;
175 };
176
177 AbstractChosen.prototype.input_focus = function(evt) {
178 var _this = this;
179
180 if (this.is_multiple) {
181 if (!this.active_field) {
182 return setTimeout((function() {
183 return _this.container_mousedown();
184 }), 50);
185 }
186 } else {
187 if (!this.active_field) {
188 return this.activate_field();
189 }
190 }
191 };
192
193 AbstractChosen.prototype.input_blur = function(evt) {
194 var _this = this;
195
196 if (!this.mouse_on_container) {
197 this.active_field = false;
198 return setTimeout((function() {
199 return _this.blur_test();
200 }), 100);
201 }
202 };
203
204 AbstractChosen.prototype.results_option_build = function(options) {
205 var content, data, _i, _len, _ref;
206
207 content = '';
208 _ref = this.results_data;
209 for (_i = 0, _len = _ref.length; _i < _len; _i++) {
210 data = _ref[_i];
211 if (data.group) {
212 content += this.result_add_group(data);
213 } else {
214 content += this.result_add_option(data);
215 }
216 if (options != null ? options.first : void 0) {
217 if (data.selected && this.is_multiple) {
218 this.choice_build(data);
219 } else if (data.selected && !this.is_multiple) {
220 this.single_set_selected_text(data.text);
221 }
222 }
223 }
224 return content;
225 };
226
227 AbstractChosen.prototype.result_add_option = function(option) {
228 var classes, style;
229
230 if (!option.search_match) {
231 return '';
232 }
233 if (!this.include_option_in_results(option)) {
234 return '';
235 }
236 classes = [];
237 if (!option.disabled && !(option.selected && this.is_multiple)) {
238 classes.push("active-result");
239 }
240 if (option.disabled && !(option.selected && this.is_multiple)) {
241 classes.push("disabled-result");
242 }
243 if (option.selected) {
244 classes.push("result-selected");
245 }
246 if (option.group_array_index != null) {
247 classes.push("group-option");
248 }
249 if (option.classes !== "") {
250 classes.push(option.classes);
251 }
252 style = option.style.cssText !== "" ? " style=\"" + option.style + "\"" : "";
253 return "<li class=\"" + (classes.join(' ')) + "\"" + style + " data-option-array-index=\"" + option.array_index + "\">" + option.search_text + "</li>";
254 };
255
256 AbstractChosen.prototype.result_add_group = function(group) {
257 if (!(group.search_match || group.group_match)) {
258 return '';
259 }
260 if (!(group.active_options > 0)) {
261 return '';
262 }
263 return "<li class=\"group-result\">" + group.search_text + "</li>";
264 };
265
266 AbstractChosen.prototype.results_update_field = function() {
267 this.set_default_text();
268 if (!this.is_multiple) {
269 this.results_reset_cleanup();
270 }
271 this.result_clear_highlight();
272 this.result_single_selected = null;
273 this.results_build();
274 if (this.results_showing) {
275 return this.winnow_results();
276 }
277 };
278
279 AbstractChosen.prototype.results_toggle = function() {
280 if (this.results_showing) {
281 return this.results_hide();
282 } else {
283 return this.results_show();
284 }
285 };
286
287 AbstractChosen.prototype.results_search = function(evt) {
288 if (this.results_showing) {
289 return this.winnow_results();
290 } else {
291 return this.results_show();
292 }
293 };
294
295 AbstractChosen.prototype.winnow_results = function() {
296 var escapedSearchText, option, regex, regexAnchor, results, results_group, searchText, startpos, text, zregex, _i, _len, _ref;
297
298 this.no_results_clear();
299 results = 0;
300 searchText = this.get_search_text();
301 escapedSearchText = searchText.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");
302 regexAnchor = this.search_contains ? "" : "^";
303 regex = new RegExp(regexAnchor + escapedSearchText, 'i');
304 zregex = new RegExp(escapedSearchText, 'i');
305 _ref = this.results_data;
306 for (_i = 0, _len = _ref.length; _i < _len; _i++) {
307 option = _ref[_i];
308 option.search_match = false;
309 results_group = null;
310 if (this.include_option_in_results(option)) {
311 if (option.group) {
312 option.group_match = false;
313 option.active_options = 0;
314 }
315 if ((option.group_array_index != null) && this.results_data[option.group_array_index]) {
316 results_group = this.results_data[option.group_array_index];
317 if (results_group.active_options === 0 && results_group.search_match) {
318 results += 1;
319 }
320 results_group.active_options += 1;
321 }
322 if (!(option.group && !this.group_search)) {
323 option.search_text = option.group ? option.label : option.html;
324 option.search_match = this.search_string_match(option.search_text, regex);
325 if (option.search_match && !option.group) {
326 results += 1;
327 }
328 if (option.search_match) {
329 if (searchText.length) {
330 startpos = option.search_text.search(zregex);
331 text = option.search_text.substr(0, startpos + searchText.length) + '</em>' + option.search_text.substr(startpos + searchText.length);
332 option.search_text = text.substr(0, startpos) + '<em>' + text.substr(startpos);
333 }
334 if (results_group != null) {
335 results_group.group_match = true;
336 }
337 } else if ((option.group_array_index != null) && this.results_data[option.group_array_index].search_match) {
338 option.search_match = true;
339 }
340 }
341 }
342 }
343 this.result_clear_highlight();
344 if (results < 1 && searchText.length) {
345 this.update_results_content("");
346 return this.no_results(searchText);
347 } else {
348 this.update_results_content(this.results_option_build());
349 return this.winnow_results_set_highlight();
350 }
351 };
352
353 AbstractChosen.prototype.search_string_match = function(search_string, regex) {
354 var part, parts, _i, _len;
355
356 if (regex.test(search_string)) {
357 return true;
358 } else if (this.enable_split_word_search && (search_string.indexOf(" ") >= 0 || search_string.indexOf("[") === 0)) {
359 parts = search_string.replace(/\[|\]/g, "").split(" ");
360 if (parts.length) {
361 for (_i = 0, _len = parts.length; _i < _len; _i++) {
362 part = parts[_i];
363 if (regex.test(part)) {
364 return true;
365 }
366 }
367 }
368 }
369 };
370
371 AbstractChosen.prototype.choices_count = function() {
372 var option, _i, _len, _ref;
373
374 if (this.selected_option_count != null) {
375 return this.selected_option_count;
376 }
377 this.selected_option_count = 0;
378 _ref = this.form_field.options;
379 for (_i = 0, _len = _ref.length; _i < _len; _i++) {
380 option = _ref[_i];
381 if (option.selected) {
382 this.selected_option_count += 1;
383 }
384 }
385 return this.selected_option_count;
386 };
387
388 AbstractChosen.prototype.choices_click = function(evt) {
389 evt.preventDefault();
390 if (!(this.results_showing || this.is_disabled)) {
391 return this.results_show();
392 }
393 };
394
395 AbstractChosen.prototype.keyup_checker = function(evt) {
396 var stroke, _ref;
397
398 stroke = (_ref = evt.which) != null ? _ref : evt.keyCode;
399 this.search_field_scale();
400 switch (stroke) {
401 case 8:
402 if (this.is_multiple && this.backstroke_length < 1 && this.choices_count() > 0) {
403 return this.keydown_backstroke();
404 } else if (!this.pending_backstroke) {
405 this.result_clear_highlight();
406 return this.results_search();
407 }
408 break;
409 case 13:
410 evt.preventDefault();
411 if (this.results_showing) {
412 return this.result_select(evt);
413 }
414 break;
415 case 27:
416 if (this.results_showing) {
417 this.results_hide();
418 }
419 return true;
420 case 9:
421 case 38:
422 case 40:
423 case 16:
424 case 91:
425 case 17:
426 break;
427 default:
428 return this.results_search();
429 }
430 };
431
432 AbstractChosen.prototype.container_width = function() {
433 if (this.options.width != null) {
434 return this.options.width;
435 } else {
436 return "" + this.form_field.offsetWidth + "px";
437 }
438 };
439
440 AbstractChosen.prototype.include_option_in_results = function(option) {
441 if (this.is_multiple && (!this.display_selected_options && option.selected)) {
442 return false;
443 }
444 if (!this.display_disabled_options && option.disabled) {
445 return false;
446 }
447 if (option.empty) {
448 return false;
449 }
450 return true;
451 };
452
453 AbstractChosen.browser_is_supported = function() {
454 if (window.navigator.appName === "Microsoft Internet Explorer") {
455 return document.documentMode >= 8;
456 }
457 if (/iP(od|hone)/i.test(window.navigator.userAgent)) {
458 return false;
459 }
460 if (/Android/i.test(window.navigator.userAgent)) {
461 if (/Mobile/i.test(window.navigator.userAgent)) {
462 return false;
463 }
464 }
465 return true;
466 };
467
468 AbstractChosen.default_multiple_text = "Select Some Options";
469
470 AbstractChosen.default_single_text = "Select an Option";
471
472 AbstractChosen.default_no_result_text = "No results match";
473
474 return AbstractChosen;
475
476 })();
477
478 $ = jQuery;
479
480 $.fn.extend({
481 chosen: function(options) {
482 if (!AbstractChosen.browser_is_supported()) {
483 return this;
484 }
485 return this.each(function(input_field) {
486 var $this, chosen;
487
488 $this = $(this);
489 chosen = $this.data('chosen');
490 if (options === 'destroy' && chosen) {
491 chosen.destroy();
492 } else if (!chosen) {
493 $this.data('chosen', new Chosen(this, options));
494 }
495 });
496 }
497 });
498
499 Chosen = (function(_super) {
500 __extends(Chosen, _super);
501
502 function Chosen() {
503 _ref = Chosen.__super__.constructor.apply(this, arguments);
504 return _ref;
505 }
506
507 Chosen.prototype.setup = function() {
508 this.form_field_jq = $(this.form_field);
509 this.current_selectedIndex = this.form_field.selectedIndex;
510 return this.is_rtl = this.form_field_jq.hasClass("chosen-rtl");
511 };
512
513 Chosen.prototype.set_up_html = function() {
514 var container_classes, container_props;
515
516 container_classes = ["chosen-container"];
517 container_classes.push("chosen-container-" + (this.is_multiple ? "multi" : "single"));
518 if (this.inherit_select_classes && this.form_field.className) {
519 container_classes.push(this.form_field.className);
520 }
521 if (this.is_rtl) {
522 container_classes.push("chosen-rtl");
523 }
524 container_props = {
525 'class': container_classes.join(' '),
526 'style': "width: " + (this.container_width()) + ";",
527 'title': this.form_field.title
528 };
529 if (this.form_field.id.length) {
530 container_props.id = this.form_field.id.replace(/[^\w]/g, '_') + "_chosen";
531 }
532 this.container = $("<div />", container_props);
533 if (this.is_multiple) {
534 this.container.html('<ul class="chosen-choices"><li class="search-field"><input type="text" value="' + this.default_text + '" class="default" autocomplete="off" style="width:25px;" /></li></ul><div class="chosen-drop"><ul class="chosen-results"></ul></div>');
535 } else {
536 this.container.html('<a class="chosen-single chosen-default" tabindex="-1"><span>' + this.default_text + '</span><div><b></b></div></a><div class="chosen-drop"><div class="chosen-search"><input type="text" autocomplete="off" /></div><ul class="chosen-results"></ul></div>');
537 }
538 this.form_field_jq.hide().after(this.container);
539 this.dropdown = this.container.find('div.chosen-drop').first();
540 this.search_field = this.container.find('input').first();
541 this.search_results = this.container.find('ul.chosen-results').first();
542 this.search_field_scale();
543 this.search_no_results = this.container.find('li.no-results').first();
544 if (this.is_multiple) {
545 this.search_choices = this.container.find('ul.chosen-choices').first();
546 this.search_container = this.container.find('li.search-field').first();
547 } else {
548 this.search_container = this.container.find('div.chosen-search').first();
549 this.selected_item = this.container.find('.chosen-single').first();
550 }
551 this.results_build();
552 this.set_tab_index();
553 this.set_label_behavior();
554 return this.form_field_jq.trigger("chosen:ready", {
555 chosen: this
556 });
557 };
558
559 Chosen.prototype.register_observers = function() {
560 var _this = this;
561
562 this.container.bind('mousedown.chosen', function(evt) {
563 _this.container_mousedown(evt);
564 });
565 this.container.bind('mouseup.chosen', function(evt) {
566 _this.container_mouseup(evt);
567 });
568 this.container.bind('mouseenter.chosen', function(evt) {
569 _this.mouse_enter(evt);
570 });
571 this.container.bind('mouseleave.chosen', function(evt) {
572 _this.mouse_leave(evt);
573 });
574 this.search_results.bind('mouseup.chosen', function(evt) {
575 _this.search_results_mouseup(evt);
576 });
577 this.search_results.bind('mouseover.chosen', function(evt) {
578 _this.search_results_mouseover(evt);
579 });
580 this.search_results.bind('mouseout.chosen', function(evt) {
581 _this.search_results_mouseout(evt);
582 });
583 this.search_results.bind('mousewheel.chosen DOMMouseScroll.chosen', function(evt) {
584 _this.search_results_mousewheel(evt);
585 });
586 this.form_field_jq.bind("chosen:updated.chosen", function(evt) {
587 _this.results_update_field(evt);
588 });
589 this.form_field_jq.bind("chosen:activate.chosen", function(evt) {
590 _this.activate_field(evt);
591 });
592 this.form_field_jq.bind("chosen:open.chosen", function(evt) {
593 _this.container_mousedown(evt);
594 });
595 this.search_field.bind('blur.chosen', function(evt) {
596 _this.input_blur(evt);
597 });
598 this.search_field.bind('keyup.chosen', function(evt) {
599 _this.keyup_checker(evt);
600 });
601 this.search_field.bind('keydown.chosen', function(evt) {
602 _this.keydown_checker(evt);
603 });
604 this.search_field.bind('focus.chosen', function(evt) {
605 _this.input_focus(evt);
606 });
607 if (this.is_multiple) {
608 return this.search_choices.bind('click.chosen', function(evt) {
609 _this.choices_click(evt);
610 });
611 } else {
612 return this.container.bind('click.chosen', function(evt) {
613 evt.preventDefault();
614 });
615 }
616 };
617
618 Chosen.prototype.destroy = function() {
619 $(document).unbind("click.chosen", this.click_test_action);
620 if (this.search_field[0].tabIndex) {
621 this.form_field_jq[0].tabIndex = this.search_field[0].tabIndex;
622 }
623 this.container.remove();
624 this.form_field_jq.removeData('chosen');
625 return this.form_field_jq.show();
626 };
627
628 Chosen.prototype.search_field_disabled = function() {
629 this.is_disabled = this.form_field_jq[0].disabled;
630 if (this.is_disabled) {
631 this.container.addClass('chosen-disabled');
632 this.search_field[0].disabled = true;
633 if (!this.is_multiple) {
634 this.selected_item.unbind("focus.chosen", this.activate_action);
635 }
636 return this.close_field();
637 } else {
638 this.container.removeClass('chosen-disabled');
639 this.search_field[0].disabled = false;
640 if (!this.is_multiple) {
641 return this.selected_item.bind("focus.chosen", this.activate_action);
642 }
643 }
644 };
645
646 Chosen.prototype.container_mousedown = function(evt) {
647 if (!this.is_disabled) {
648 if (evt && evt.type === "mousedown" && !this.results_showing) {
649 evt.preventDefault();
650 }
651 if (!((evt != null) && ($(evt.target)).hasClass("search-choice-close"))) {
652 if (!this.active_field) {
653 if (this.is_multiple) {
654 this.search_field.val("");
655 }
656 $(document).bind('click.chosen', this.click_test_action);
657 this.results_show();
658 } else if (!this.is_multiple && evt && (($(evt.target)[0] === this.selected_item[0]) || $(evt.target).parents("a.chosen-single").length)) {
659 evt.preventDefault();
660 this.results_toggle();
661 }
662 return this.activate_field();
663 }
664 }
665 };
666
667 Chosen.prototype.container_mouseup = function(evt) {
668 if (evt.target.nodeName === "ABBR" && !this.is_disabled) {
669 return this.results_reset(evt);
670 }
671 };
672
673 Chosen.prototype.search_results_mousewheel = function(evt) {
674 var delta, _ref1, _ref2;
675
676 delta = -((_ref1 = evt.originalEvent) != null ? _ref1.wheelDelta : void 0) || ((_ref2 = evt.originialEvent) != null ? _ref2.detail : void 0);
677 if (delta != null) {
678 evt.preventDefault();
679 if (evt.type === 'DOMMouseScroll') {
680 delta = delta * 40;
681 }
682 return this.search_results.scrollTop(delta + this.search_results.scrollTop());
683 }
684 };
685
686 Chosen.prototype.blur_test = function(evt) {
687 if (!this.active_field && this.container.hasClass("chosen-container-active")) {
688 return this.close_field();
689 }
690 };
691
692 Chosen.prototype.close_field = function() {
693 $(document).unbind("click.chosen", this.click_test_action);
694 this.active_field = false;
695 this.results_hide();
696 this.container.removeClass("chosen-container-active");
697 this.clear_backstroke();
698 this.show_search_field_default();
699 return this.search_field_scale();
700 };
701
702 Chosen.prototype.activate_field = function() {
703 this.container.addClass("chosen-container-active");
704 this.active_field = true;
705 this.search_field.val(this.search_field.val());
706 return this.search_field.focus();
707 };
708
709 Chosen.prototype.test_active_click = function(evt) {
710 if (this.container.is($(evt.target).closest('.chosen-container'))) {
711 return this.active_field = true;
712 } else {
713 return this.close_field();
714 }
715 };
716
717 Chosen.prototype.results_build = function() {
718 this.parsing = true;
719 this.selected_option_count = null;
720 this.results_data = SelectParser.select_to_array(this.form_field);
721 if (this.is_multiple) {
722 this.search_choices.find("li.search-choice").remove();
723 } else if (!this.is_multiple) {
724 this.single_set_selected_text();
725 if (this.disable_search || this.form_field.options.length <= this.disable_search_threshold) {
726 this.search_field[0].readOnly = true;
727 this.container.addClass("chosen-container-single-nosearch");
728 } else {
729 this.search_field[0].readOnly = false;
730 this.container.removeClass("chosen-container-single-nosearch");
731 }
732 }
733 this.update_results_content(this.results_option_build({
734 first: true
735 }));
736 this.search_field_disabled();
737 this.show_search_field_default();
738 this.search_field_scale();
739 return this.parsing = false;
740 };
741
742 Chosen.prototype.result_do_highlight = function(el) {
743 var high_bottom, high_top, maxHeight, visible_bottom, visible_top;
744
745 if (el.length) {
746 this.result_clear_highlight();
747 this.result_highlight = el;
748 this.result_highlight.addClass("highlighted");
749 maxHeight = parseInt(this.search_results.css("maxHeight"), 10);
750 visible_top = this.search_results.scrollTop();
751 visible_bottom = maxHeight + visible_top;
752 high_top = this.result_highlight.position().top + this.search_results.scrollTop();
753 high_bottom = high_top + this.result_highlight.outerHeight();
754 if (high_bottom >= visible_bottom) {
755 return this.search_results.scrollTop((high_bottom - maxHeight) > 0 ? high_bottom - maxHeight : 0);
756 } else if (high_top < visible_top) {
757 return this.search_results.scrollTop(high_top);
758 }
759 }
760 };
761
762 Chosen.prototype.result_clear_highlight = function() {
763 if (this.result_highlight) {
764 this.result_highlight.removeClass("highlighted");
765 }
766 return this.result_highlight = null;
767 };
768
769 Chosen.prototype.results_show = function() {
770 if (this.is_multiple && this.max_selected_options <= this.choices_count()) {
771 this.form_field_jq.trigger("chosen:maxselected", {
772 chosen: this
773 });
774 return false;
775 }
776 this.container.addClass("chosen-with-drop");
777 this.form_field_jq.trigger("chosen:showing_dropdown", {
778 chosen: this
779 });
780 this.results_showing = true;
781 this.search_field.focus();
782 this.search_field.val(this.search_field.val());
783 return this.winnow_results();
784 };
785
786 Chosen.prototype.update_results_content = function(content) {
787 return this.search_results.html(content);
788 };
789
790 Chosen.prototype.results_hide = function() {
791 if (this.results_showing) {
792 this.result_clear_highlight();
793 this.container.removeClass("chosen-with-drop");
794 this.form_field_jq.trigger("chosen:hiding_dropdown", {
795 chosen: this
796 });
797 }
798 return this.results_showing = false;
799 };
800
801 Chosen.prototype.set_tab_index = function(el) {
802 var ti;
803
804 if (this.form_field.tabIndex) {
805 ti = this.form_field.tabIndex;
806 this.form_field.tabIndex = -1;
807 return this.search_field[0].tabIndex = ti;
808 }
809 };
810
811 Chosen.prototype.set_label_behavior = function() {
812 var _this = this;
813
814 this.form_field_label = this.form_field_jq.parents("label");
815 if (!this.form_field_label.length && this.form_field.id.length) {
816 this.form_field_label = $("label[for='" + this.form_field.id + "']");
817 }
818 if (this.form_field_label.length > 0) {
819 return this.form_field_label.bind('click.chosen', function(evt) {
820 if (_this.is_multiple) {
821 return _this.container_mousedown(evt);
822 } else {
823 return _this.activate_field();
824 }
825 });
826 }
827 };
828
829 Chosen.prototype.show_search_field_default = function() {
830 if (this.is_multiple && this.choices_count() < 1 && !this.active_field) {
831 this.search_field.val(this.default_text);
832 return this.search_field.addClass("default");
833 } else {
834 this.search_field.val("");
835 return this.search_field.removeClass("default");
836 }
837 };
838
839 Chosen.prototype.search_results_mouseup = function(evt) {
840 var target;
841
842 target = $(evt.target).hasClass("active-result") ? $(evt.target) : $(evt.target).parents(".active-result").first();
843 if (target.length) {
844 this.result_highlight = target;
845 this.result_select(evt);
846 return this.search_field.focus();
847 }
848 };
849
850 Chosen.prototype.search_results_mouseover = function(evt) {
851 var target;
852
853 target = $(evt.target).hasClass("active-result") ? $(evt.target) : $(evt.target).parents(".active-result").first();
854 if (target) {
855 return this.result_do_highlight(target);
856 }
857 };
858
859 Chosen.prototype.search_results_mouseout = function(evt) {
860 if ($(evt.target).hasClass("active-result" || $(evt.target).parents('.active-result').first())) {
861 return this.result_clear_highlight();
862 }
863 };
864
865 Chosen.prototype.choice_build = function(item) {
866 var choice, close_link,
867 _this = this;
868
869 choice = $('<li />', {
870 "class": "search-choice"
871 }).html("<span>" + item.html + "</span>");
872 if (item.disabled) {
873 choice.addClass('search-choice-disabled');
874 } else {
875 close_link = $('<a />', {
876 "class": 'search-choice-close',
877 'data-option-array-index': item.array_index
878 });
879 close_link.bind('click.chosen', function(evt) {
880 return _this.choice_destroy_link_click(evt);
881 });
882 choice.append(close_link);
883 }
884 return this.search_container.before(choice);
885 };
886
887 Chosen.prototype.choice_destroy_link_click = function(evt) {
888 evt.preventDefault();
889 evt.stopPropagation();
890 if (!this.is_disabled) {
891 return this.choice_destroy($(evt.target));
892 }
893 };
894
895 Chosen.prototype.choice_destroy = function(link) {
896 if (this.result_deselect(link[0].getAttribute("data-option-array-index"))) {
897 this.show_search_field_default();
898 if (this.is_multiple && this.choices_count() > 0 && this.search_field.val().length < 1) {
899 this.results_hide();
900 }
901 link.parents('li').first().remove();
902 return this.search_field_scale();
903 }
904 };
905
906 Chosen.prototype.results_reset = function() {
907 this.form_field.options[0].selected = true;
908 this.selected_option_count = null;
909 this.single_set_selected_text();
910 this.show_search_field_default();
911 this.results_reset_cleanup();
912 this.form_field_jq.trigger("change");
913 if (this.active_field) {
914 return this.results_hide();
915 }
916 };
917
918 Chosen.prototype.results_reset_cleanup = function() {
919 this.current_selectedIndex = this.form_field.selectedIndex;
920 return this.selected_item.find("abbr").remove();
921 };
922
923 Chosen.prototype.result_select = function(evt) {
924 var high, item, selected_index;
925
926 if (this.result_highlight) {
927 high = this.result_highlight;
928 this.result_clear_highlight();
929 if (this.is_multiple && this.max_selected_options <= this.choices_count()) {
930 this.form_field_jq.trigger("chosen:maxselected", {
931 chosen: this
932 });
933 return false;
934 }
935 if (this.is_multiple) {
936 high.removeClass("active-result");
937 } else {
938 if (this.result_single_selected) {
939 this.result_single_selected.removeClass("result-selected");
940 selected_index = this.result_single_selected[0].getAttribute('data-option-array-index');
941 this.results_data[selected_index].selected = false;
942 }
943 this.result_single_selected = high;
944 }
945 high.addClass("result-selected");
946 item = this.results_data[high[0].getAttribute("data-option-array-index")];
947 item.selected = true;
948 this.form_field.options[item.options_index].selected = true;
949 this.selected_option_count = null;
950 if (this.is_multiple) {
951 this.choice_build(item);
952 } else {
953 this.single_set_selected_text(item.text);
954 }
955 if (!((evt.metaKey || evt.ctrlKey) && this.is_multiple)) {
956 this.results_hide();
957 }
958 this.search_field.val("");
959 if (this.is_multiple || this.form_field.selectedIndex !== this.current_selectedIndex) {
960 this.form_field_jq.trigger("change", {
961 'selected': this.form_field.options[item.options_index].value
962 });
963 }
964 this.current_selectedIndex = this.form_field.selectedIndex;
965 return this.search_field_scale();
966 }
967 };
968
969 Chosen.prototype.single_set_selected_text = function(text) {
970 if (text == null) {
971 text = this.default_text;
972 }
973 if (text === this.default_text) {
974 this.selected_item.addClass("chosen-default");
975 } else {
976 this.single_deselect_control_build();
977 this.selected_item.removeClass("chosen-default");
978 }
979 return this.selected_item.find("span").text(text);
980 };
981
982 Chosen.prototype.result_deselect = function(pos) {
983 var result_data;
984
985 result_data = this.results_data[pos];
986 if (!this.form_field.options[result_data.options_index].disabled) {
987 result_data.selected = false;
988 this.form_field.options[result_data.options_index].selected = false;
989 this.selected_option_count = null;
990 this.result_clear_highlight();
991 if (this.results_showing) {
992 this.winnow_results();
993 }
994 this.form_field_jq.trigger("change", {
995 deselected: this.form_field.options[result_data.options_index].value
996 });
997 this.search_field_scale();
998 return true;
999 } else {
1000 return false;
1001 }
1002 };
1003
1004 Chosen.prototype.single_deselect_control_build = function() {
1005 if (!this.allow_single_deselect) {
1006 return;
1007 }
1008 if (!this.selected_item.find("abbr").length) {
1009 this.selected_item.find("span").first().after("<abbr class=\"search-choice-close\"></abbr>");
1010 }
1011 return this.selected_item.addClass("chosen-single-with-deselect");
1012 };
1013
1014 Chosen.prototype.get_search_text = function() {
1015 if (this.search_field.val() === this.default_text) {
1016 return "";
1017 } else {
1018 return $('<div/>').text($.trim(this.search_field.val())).html();
1019 }
1020 };
1021
1022 Chosen.prototype.winnow_results_set_highlight = function() {
1023 var do_high, selected_results;
1024
1025 selected_results = !this.is_multiple ? this.search_results.find(".result-selected.active-result") : [];
1026 do_high = selected_results.length ? selected_results.first() : this.search_results.find(".active-result").first();
1027 if (do_high != null) {
1028 return this.result_do_highlight(do_high);
1029 }
1030 };
1031
1032 Chosen.prototype.no_results = function(terms) {
1033 var no_results_html;
1034
1035 no_results_html = $('<li class="no-results">' + this.results_none_found + ' "<span></span>"</li>');
1036 no_results_html.find("span").first().html(terms);
1037 return this.search_results.append(no_results_html);
1038 };
1039
1040 Chosen.prototype.no_results_clear = function() {
1041 return this.search_results.find(".no-results").remove();
1042 };
1043
1044 Chosen.prototype.keydown_arrow = function() {
1045 var next_sib;
1046
1047 if (this.results_showing && this.result_highlight) {
1048 next_sib = this.result_highlight.nextAll("li.active-result").first();
1049 if (next_sib) {
1050 return this.result_do_highlight(next_sib);
1051 }
1052 } else {
1053 return this.results_show();
1054 }
1055 };
1056
1057 Chosen.prototype.keyup_arrow = function() {
1058 var prev_sibs;
1059
1060 if (!this.results_showing && !this.is_multiple) {
1061 return this.results_show();
1062 } else if (this.result_highlight) {
1063 prev_sibs = this.result_highlight.prevAll("li.active-result");
1064 if (prev_sibs.length) {
1065 return this.result_do_highlight(prev_sibs.first());
1066 } else {
1067 if (this.choices_count() > 0) {
1068 this.results_hide();
1069 }
1070 return this.result_clear_highlight();
1071 }
1072 }
1073 };
1074
1075 Chosen.prototype.keydown_backstroke = function() {
1076 var next_available_destroy;
1077
1078 if (this.pending_backstroke) {
1079 this.choice_destroy(this.pending_backstroke.find("a").first());
1080 return this.clear_backstroke();
1081 } else {
1082 next_available_destroy = this.search_container.siblings("li.search-choice").last();
1083 if (next_available_destroy.length && !next_available_destroy.hasClass("search-choice-disabled")) {
1084 this.pending_backstroke = next_available_destroy;
1085 if (this.single_backstroke_delete) {
1086 return this.keydown_backstroke();
1087 } else {
1088 return this.pending_backstroke.addClass("search-choice-focus");
1089 }
1090 }
1091 }
1092 };
1093
1094 Chosen.prototype.clear_backstroke = function() {
1095 if (this.pending_backstroke) {
1096 this.pending_backstroke.removeClass("search-choice-focus");
1097 }
1098 return this.pending_backstroke = null;
1099 };
1100
1101 Chosen.prototype.keydown_checker = function(evt) {
1102 var stroke, _ref1;
1103
1104 stroke = (_ref1 = evt.which) != null ? _ref1 : evt.keyCode;
1105 this.search_field_scale();
1106 if (stroke !== 8 && this.pending_backstroke) {
1107 this.clear_backstroke();
1108 }
1109 switch (stroke) {
1110 case 8:
1111 this.backstroke_length = this.search_field.val().length;
1112 break;
1113 case 9:
1114 if (this.results_showing && !this.is_multiple) {
1115 this.result_select(evt);
1116 }
1117 this.mouse_on_container = false;
1118 break;
1119 case 13:
1120 evt.preventDefault();
1121 break;
1122 case 38:
1123 evt.preventDefault();
1124 this.keyup_arrow();
1125 break;
1126 case 40:
1127 evt.preventDefault();
1128 this.keydown_arrow();
1129 break;
1130 }
1131 };
1132
1133 Chosen.prototype.search_field_scale = function() {
1134 var div, f_width, h, style, style_block, styles, w, _i, _len;
1135
1136 if (this.is_multiple) {
1137 h = 0;
1138 w = 0;
1139 style_block = "position:absolute; left: -1000px; top: -1000px; display:none;";
1140 styles = ['font-size', 'font-style', 'font-weight', 'font-family', 'line-height', 'text-transform', 'letter-spacing'];
1141 for (_i = 0, _len = styles.length; _i < _len; _i++) {
1142 style = styles[_i];
1143 style_block += style + ":" + this.search_field.css(style) + ";";
1144 }
1145 div = $('<div />', {
1146 'style': style_block
1147 });
1148 div.text(this.search_field.val());
1149 $('body').append(div);
1150 w = div.width() + 25;
1151 div.remove();
1152 f_width = this.container.outerWidth();
1153 if (w > f_width - 10) {
1154 w = f_width - 10;
1155 }
1156 return this.search_field.css({
1157 'width': w + 'px'
1158 });
1159 }
1160 };
1161
1162 return Chosen;
1163
1164 })(AbstractChosen);
1165
1166 }).call(this);

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