1/*!
2Chosen, a Select Box Enhancer for jQuery and Prototype
3by Patrick Filler for Harvest, http://getharvest.com
4
5Version 1.4.2
6Full source at https://github.com/harvesthq/chosen
7Copyright (c) 2011-2015 Harvest http://getharvest.com
8
9MIT License, https://github.com/harvesthq/chosen/blob/master/LICENSE.md
10This file is generated by `grunt build`, do not edit it by hand.
11*/
12
13(function() {
14  var $, AbstractChosen, Chosen, SelectParser, _ref,
15    __hasProp = {}.hasOwnProperty,
16    __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; };
17
18  SelectParser = (function() {
19    function SelectParser() {
20      this.options_index = 0;
21      this.parsed = [];
22    }
23
24    SelectParser.prototype.add_node = function(child) {
25      if (child.nodeName.toUpperCase() === "OPTGROUP") {
26        return this.add_group(child);
27      } else {
28        return this.add_option(child);
29      }
30    };
31
32    SelectParser.prototype.add_group = function(group) {
33      var group_position, option, _i, _len, _ref, _results;
34      group_position = this.parsed.length;
35      this.parsed.push({
36        array_index: group_position,
37        group: true,
38        label: this.escapeExpression(group.label),
39        title: group.title ? group.title : void 0,
40        children: 0,
41        disabled: group.disabled,
42        classes: group.className
43      });
44      _ref = group.childNodes;
45      _results = [];
46      for (_i = 0, _len = _ref.length; _i < _len; _i++) {
47        option = _ref[_i];
48        _results.push(this.add_option(option, group_position, group.disabled));
49      }
50      return _results;
51    };
52
53    SelectParser.prototype.add_option = function(option, group_position, group_disabled) {
54      if (option.nodeName.toUpperCase() === "OPTION") {
55        if (option.text !== "") {
56          if (group_position != null) {
57            this.parsed[group_position].children += 1;
58          }
59          this.parsed.push({
60            array_index: this.parsed.length,
61            options_index: this.options_index,
62            value: option.value,
63            text: option.text,
64            html: option.innerHTML,
65            title: option.title ? option.title : void 0,
66            selected: option.selected,
67            disabled: group_disabled === true ? group_disabled : option.disabled,
68            group_array_index: group_position,
69            group_label: group_position != null ? this.parsed[group_position].label : null,
70            classes: option.className,
71            style: option.style.cssText
72          });
73        } else {
74          this.parsed.push({
75            array_index: this.parsed.length,
76            options_index: this.options_index,
77            empty: true
78          });
79        }
80        return this.options_index += 1;
81      }
82    };
83
84    SelectParser.prototype.escapeExpression = function(text) {
85      var map, unsafe_chars;
86      if ((text == null) || text === false) {
87        return "";
88      }
89      if (!/[\&\<\>\"\'\`]/.test(text)) {
90        return text;
91      }
92      map = {
93        "<": "&lt;",
94        ">": "&gt;",
95        '"': "&quot;",
96        "'": "&#x27;",
97        "`": "&#x60;"
98      };
99      unsafe_chars = /&(?!\w+;)|[\<\>\"\'\`]/g;
100      return text.replace(unsafe_chars, function(chr) {
101        return map[chr] || "&amp;";
102      });
103    };
104
105    return SelectParser;
106
107  })();
108
109  SelectParser.select_to_array = function(select) {
110    var child, parser, _i, _len, _ref;
111    parser = new SelectParser();
112    _ref = select.childNodes;
113    for (_i = 0, _len = _ref.length; _i < _len; _i++) {
114      child = _ref[_i];
115      parser.add_node(child);
116    }
117    return parser.parsed;
118  };
119
120  AbstractChosen = (function() {
121    function AbstractChosen(form_field, options) {
122      this.form_field = form_field;
123      this.options = options != null ? options : {};
124      if (!AbstractChosen.browser_is_supported()) {
125        return;
126      }
127      this.is_multiple = this.form_field.multiple;
128      this.set_default_text();
129      this.set_default_values();
130      this.setup();
131      this.set_up_html();
132      this.register_observers();
133      this.on_ready();
134    }
135
136    AbstractChosen.prototype.set_default_values = function() {
137      var _this = this;
138      this.click_test_action = function(evt) {
139        return _this.test_active_click(evt);
140      };
141      this.activate_action = function(evt) {
142        return _this.activate_field(evt);
143      };
144      this.active_field = false;
145      this.mouse_on_container = false;
146      this.results_showing = false;
147      this.result_highlighted = null;
148      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;
149      this.disable_search_threshold = this.options.disable_search_threshold || 0;
150      this.disable_search = this.options.disable_search || false;
151      this.enable_split_word_search = this.options.enable_split_word_search != null ? this.options.enable_split_word_search : true;
152      this.group_search = this.options.group_search != null ? this.options.group_search : true;
153      this.search_contains = this.options.search_contains || false;
154      this.single_backstroke_delete = this.options.single_backstroke_delete != null ? this.options.single_backstroke_delete : true;
155      this.max_selected_options = this.options.max_selected_options || Infinity;
156      this.inherit_select_classes = this.options.inherit_select_classes || false;
157      this.display_selected_options = this.options.display_selected_options != null ? this.options.display_selected_options : true;
158      this.display_disabled_options = this.options.display_disabled_options != null ? this.options.display_disabled_options : true;
159      return this.include_group_label_in_selected = this.options.include_group_label_in_selected || false;
160    };
161
162    AbstractChosen.prototype.set_default_text = function() {
163      if (this.form_field.getAttribute("data-placeholder")) {
164        this.default_text = this.form_field.getAttribute("data-placeholder");
165      } else if (this.is_multiple) {
166        this.default_text = this.options.placeholder_text_multiple || this.options.placeholder_text || AbstractChosen.default_multiple_text;
167      } else {
168        this.default_text = this.options.placeholder_text_single || this.options.placeholder_text || AbstractChosen.default_single_text;
169      }
170      return this.results_none_found = this.form_field.getAttribute("data-no_results_text") || this.options.no_results_text || AbstractChosen.default_no_result_text;
171    };
172
173    AbstractChosen.prototype.choice_label = function(item) {
174      if (this.include_group_label_in_selected && (item.group_label != null)) {
175        return "<b class='group-name'>" + item.group_label + "</b>" + item.html;
176      } else {
177        return item.html;
178      }
179    };
180
181    AbstractChosen.prototype.mouse_enter = function() {
182      return this.mouse_on_container = true;
183    };
184
185    AbstractChosen.prototype.mouse_leave = function() {
186      return this.mouse_on_container = false;
187    };
188
189    AbstractChosen.prototype.input_focus = function(evt) {
190      var _this = this;
191      if (this.is_multiple) {
192        if (!this.active_field) {
193          return setTimeout((function() {
194            return _this.container_mousedown();
195          }), 50);
196        }
197      } else {
198        if (!this.active_field) {
199          return this.activate_field();
200        }
201      }
202    };
203
204    AbstractChosen.prototype.input_blur = function(evt) {
205      var _this = this;
206      if (!this.mouse_on_container) {
207        this.active_field = false;
208        return setTimeout((function() {
209          return _this.blur_test();
210        }), 100);
211      }
212    };
213
214    AbstractChosen.prototype.results_option_build = function(options) {
215      var content, data, _i, _len, _ref;
216      content = '';
217      _ref = this.results_data;
218      for (_i = 0, _len = _ref.length; _i < _len; _i++) {
219        data = _ref[_i];
220        if (data.group) {
221          content += this.result_add_group(data);
222        } else {
223          content += this.result_add_option(data);
224        }
225        if (options != null ? options.first : void 0) {
226          if (data.selected && this.is_multiple) {
227            this.choice_build(data);
228          } else if (data.selected && !this.is_multiple) {
229            this.single_set_selected_text(this.choice_label(data));
230          }
231        }
232      }
233      return content;
234    };
235
236    AbstractChosen.prototype.result_add_option = function(option) {
237      var classes, option_el;
238      if (!option.search_match) {
239        return '';
240      }
241      if (!this.include_option_in_results(option)) {
242        return '';
243      }
244      classes = [];
245      if (!option.disabled && !(option.selected && this.is_multiple)) {
246        classes.push("active-result");
247      }
248      if (option.disabled && !(option.selected && this.is_multiple)) {
249        classes.push("disabled-result");
250      }
251      if (option.selected) {
252        classes.push("result-selected");
253      }
254      if (option.group_array_index != null) {
255        classes.push("group-option");
256      }
257      if (option.classes !== "") {
258        classes.push(option.classes);
259      }
260      option_el = document.createElement("li");
261      option_el.className = classes.join(" ");
262      option_el.style.cssText = option.style;
263      option_el.setAttribute("data-option-array-index", option.array_index);
264      option_el.innerHTML = option.search_text;
265      if (option.title) {
266        option_el.title = option.title;
267      }
268      return this.outerHTML(option_el);
269    };
270
271    AbstractChosen.prototype.result_add_group = function(group) {
272      var classes, group_el;
273      if (!(group.search_match || group.group_match)) {
274        return '';
275      }
276      if (!(group.active_options > 0)) {
277        return '';
278      }
279      classes = [];
280      classes.push("group-result");
281      if (group.classes) {
282        classes.push(group.classes);
283      }
284      group_el = document.createElement("li");
285      group_el.className = classes.join(" ");
286      group_el.innerHTML = group.search_text;
287      if (group.title) {
288        group_el.title = group.title;
289      }
290      return this.outerHTML(group_el);
291    };
292
293    AbstractChosen.prototype.results_update_field = function() {
294      this.set_default_text();
295      if (!this.is_multiple) {
296        this.results_reset_cleanup();
297      }
298      this.result_clear_highlight();
299      this.results_build();
300      if (this.results_showing) {
301        return this.winnow_results();
302      }
303    };
304
305    AbstractChosen.prototype.reset_single_select_options = function() {
306      var result, _i, _len, _ref, _results;
307      _ref = this.results_data;
308      _results = [];
309      for (_i = 0, _len = _ref.length; _i < _len; _i++) {
310        result = _ref[_i];
311        if (result.selected) {
312          _results.push(result.selected = false);
313        } else {
314          _results.push(void 0);
315        }
316      }
317      return _results;
318    };
319
320    AbstractChosen.prototype.results_toggle = function() {
321      if (this.results_showing) {
322        return this.results_hide();
323      } else {
324        return this.results_show();
325      }
326    };
327
328    AbstractChosen.prototype.results_search = function(evt) {
329      if (this.results_showing) {
330        return this.winnow_results();
331      } else {
332        return this.results_show();
333      }
334    };
335
336    AbstractChosen.prototype.winnow_results = function() {
337      var escapedSearchText, option, regex, results, results_group, searchText, startpos, text, zregex, _i, _len, _ref;
338      this.no_results_clear();
339      results = 0;
340      searchText = this.get_search_text();
341      escapedSearchText = searchText.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");
342      zregex = new RegExp(escapedSearchText, 'i');
343      regex = this.get_search_regex(escapedSearchText);
344      _ref = this.results_data;
345      for (_i = 0, _len = _ref.length; _i < _len; _i++) {
346        option = _ref[_i];
347        option.search_match = false;
348        results_group = null;
349        if (this.include_option_in_results(option)) {
350          if (option.group) {
351            option.group_match = false;
352            option.active_options = 0;
353          }
354          if ((option.group_array_index != null) && this.results_data[option.group_array_index]) {
355            results_group = this.results_data[option.group_array_index];
356            if (results_group.active_options === 0 && results_group.search_match) {
357              results += 1;
358            }
359            results_group.active_options += 1;
360          }
361          option.search_text = option.group ? option.label : option.html;
362          if (!(option.group && !this.group_search)) {
363            option.search_match = this.search_string_match(option.search_text, regex);
364            if (option.search_match && !option.group) {
365              results += 1;
366            }
367            if (option.search_match) {
368              if (searchText.length) {
369                startpos = option.search_text.search(zregex);
370                text = option.search_text.substr(0, startpos + searchText.length) + '</em>' + option.search_text.substr(startpos + searchText.length);
371                option.search_text = text.substr(0, startpos) + '<em>' + text.substr(startpos);
372              }
373              if (results_group != null) {
374                results_group.group_match = true;
375              }
376            } else if ((option.group_array_index != null) && this.results_data[option.group_array_index].search_match) {
377              option.search_match = true;
378            }
379          }
380        }
381      }
382      this.result_clear_highlight();
383      if (results < 1 && searchText.length) {
384        this.update_results_content("");
385        return this.no_results(searchText);
386      } else {
387        this.update_results_content(this.results_option_build());
388        return this.winnow_results_set_highlight();
389      }
390    };
391
392    AbstractChosen.prototype.get_search_regex = function(escaped_search_string) {
393      var regex_anchor;
394      regex_anchor = this.search_contains ? "" : "^";
395      return new RegExp(regex_anchor + escaped_search_string, 'i');
396    };
397
398    AbstractChosen.prototype.search_string_match = function(search_string, regex) {
399      var part, parts, _i, _len;
400      if (regex.test(search_string)) {
401        return true;
402      } else if (this.enable_split_word_search && (search_string.indexOf(" ") >= 0 || search_string.indexOf("[") === 0)) {
403        parts = search_string.replace(/\[|\]/g, "").split(" ");
404        if (parts.length) {
405          for (_i = 0, _len = parts.length; _i < _len; _i++) {
406            part = parts[_i];
407            if (regex.test(part)) {
408              return true;
409            }
410          }
411        }
412      }
413    };
414
415    AbstractChosen.prototype.choices_count = function() {
416      var option, _i, _len, _ref;
417      if (this.selected_option_count != null) {
418        return this.selected_option_count;
419      }
420      this.selected_option_count = 0;
421      _ref = this.form_field.options;
422      for (_i = 0, _len = _ref.length; _i < _len; _i++) {
423        option = _ref[_i];
424        if (option.selected) {
425          this.selected_option_count += 1;
426        }
427      }
428      return this.selected_option_count;
429    };
430
431    AbstractChosen.prototype.choices_click = function(evt) {
432      evt.preventDefault();
433      if (!(this.results_showing || this.is_disabled)) {
434        return this.results_show();
435      }
436    };
437
438    AbstractChosen.prototype.keyup_checker = function(evt) {
439      var stroke, _ref;
440      stroke = (_ref = evt.which) != null ? _ref : evt.keyCode;
441      this.search_field_scale();
442      switch (stroke) {
443        case 8:
444          if (this.is_multiple && this.backstroke_length < 1 && this.choices_count() > 0) {
445            return this.keydown_backstroke();
446          } else if (!this.pending_backstroke) {
447            this.result_clear_highlight();
448            return this.results_search();
449          }
450          break;
451        case 13:
452          evt.preventDefault();
453          if (this.results_showing) {
454            return this.result_select(evt);
455          }
456          break;
457        case 27:
458          if (this.results_showing) {
459            this.results_hide();
460          }
461          return true;
462        case 9:
463        case 38:
464        case 40:
465        case 16:
466        case 91:
467        case 17:
468          break;
469        default:
470          return this.results_search();
471      }
472    };
473
474    AbstractChosen.prototype.clipboard_event_checker = function(evt) {
475      var _this = this;
476      return setTimeout((function() {
477        return _this.results_search();
478      }), 50);
479    };
480
481    AbstractChosen.prototype.container_width = function() {
482      if (this.options.width != null) {
483        return this.options.width;
484      } else {
485        return "" + this.form_field.offsetWidth + "px";
486      }
487    };
488
489    AbstractChosen.prototype.include_option_in_results = function(option) {
490      if (this.is_multiple && (!this.display_selected_options && option.selected)) {
491        return false;
492      }
493      if (!this.display_disabled_options && option.disabled) {
494        return false;
495      }
496      if (option.empty) {
497        return false;
498      }
499      return true;
500    };
501
502    AbstractChosen.prototype.search_results_touchstart = function(evt) {
503      this.touch_started = true;
504      return this.search_results_mouseover(evt);
505    };
506
507    AbstractChosen.prototype.search_results_touchmove = function(evt) {
508      this.touch_started = false;
509      return this.search_results_mouseout(evt);
510    };
511
512    AbstractChosen.prototype.search_results_touchend = function(evt) {
513      if (this.touch_started) {
514        return this.search_results_mouseup(evt);
515      }
516    };
517
518    AbstractChosen.prototype.outerHTML = function(element) {
519      var tmp;
520      if (element.outerHTML) {
521        return element.outerHTML;
522      }
523      tmp = document.createElement("div");
524      tmp.appendChild(element);
525      return tmp.innerHTML;
526    };
527
528    AbstractChosen.browser_is_supported = function() {
529      if (window.navigator.appName === "Microsoft Internet Explorer") {
530        return document.documentMode >= 8;
531      }
532      if (/iP(od|hone)/i.test(window.navigator.userAgent)) {
533        return false;
534      }
535      if (/Android/i.test(window.navigator.userAgent)) {
536        if (/Mobile/i.test(window.navigator.userAgent)) {
537          return false;
538        }
539      }
540      return true;
541    };
542
543    AbstractChosen.default_multiple_text = "Select Some Options";
544
545    AbstractChosen.default_single_text = "Select an Option";
546
547    AbstractChosen.default_no_result_text = "No results match";
548
549    return AbstractChosen;
550
551  })();
552
553  $ = jQuery;
554
555  $.fn.extend({
556    chosen: function(options) {
557      if (!AbstractChosen.browser_is_supported()) {
558        return this;
559      }
560      return this.each(function(input_field) {
561        var $this, chosen;
562        $this = $(this);
563        chosen = $this.data('chosen');
564        if (options === 'destroy' && chosen instanceof Chosen) {
565          chosen.destroy();
566        } else if (!(chosen instanceof Chosen)) {
567          $this.data('chosen', new Chosen(this, options));
568        }
569      });
570    }
571  });
572
573  Chosen = (function(_super) {
574    __extends(Chosen, _super);
575
576    function Chosen() {
577      _ref = Chosen.__super__.constructor.apply(this, arguments);
578      return _ref;
579    }
580
581    Chosen.prototype.setup = function() {
582      this.form_field_jq = $(this.form_field);
583      this.current_selectedIndex = this.form_field.selectedIndex;
584      return this.is_rtl = this.form_field_jq.hasClass("chosen-rtl");
585    };
586
587    Chosen.prototype.set_up_html = function() {
588      var container_classes, container_props;
589      container_classes = ["chosen-container"];
590      container_classes.push("chosen-container-" + (this.is_multiple ? "multi" : "single"));
591      if (this.inherit_select_classes && this.form_field.className) {
592        container_classes.push(this.form_field.className);
593      }
594      if (this.is_rtl) {
595        container_classes.push("chosen-rtl");
596      }
597      container_props = {
598        'class': container_classes.join(' '),
599        'style': "width: " + (this.container_width()) + ";",
600        'title': this.form_field.title
601      };
602      if (this.form_field.id.length) {
603        container_props.id = this.form_field.id.replace(/[^\w]/g, '_') + "_chosen";
604      }
605      this.container = $("<div />", container_props);
606      if (this.is_multiple) {
607        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>');
608      } else {
609        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>');
610      }
611      this.form_field_jq.hide().after(this.container);
612      this.dropdown = this.container.find('div.chosen-drop').first();
613      this.search_field = this.container.find('input').first();
614      this.search_results = this.container.find('ul.chosen-results').first();
615      this.search_field_scale();
616      this.search_no_results = this.container.find('li.no-results').first();
617      if (this.is_multiple) {
618        this.search_choices = this.container.find('ul.chosen-choices').first();
619        this.search_container = this.container.find('li.search-field').first();
620      } else {
621        this.search_container = this.container.find('div.chosen-search').first();
622        this.selected_item = this.container.find('.chosen-single').first();
623      }
624      this.results_build();
625      this.set_tab_index();
626      return this.set_label_behavior();
627    };
628
629    Chosen.prototype.on_ready = function() {
630      return this.form_field_jq.trigger("chosen:ready", {
631        chosen: this
632      });
633    };
634
635    Chosen.prototype.register_observers = function() {
636      var _this = this;
637      this.container.bind('touchstart.chosen', function(evt) {
638        _this.container_mousedown(evt);
639        return evt.preventDefault();
640      });
641      this.container.bind('touchend.chosen', function(evt) {
642        _this.container_mouseup(evt);
643        return evt.preventDefault();
644      });
645      this.container.bind('mousedown.chosen', function(evt) {
646        _this.container_mousedown(evt);
647      });
648      this.container.bind('mouseup.chosen', function(evt) {
649        _this.container_mouseup(evt);
650      });
651      this.container.bind('mouseenter.chosen', function(evt) {
652        _this.mouse_enter(evt);
653      });
654      this.container.bind('mouseleave.chosen', function(evt) {
655        _this.mouse_leave(evt);
656      });
657      this.search_results.bind('mouseup.chosen', function(evt) {
658        _this.search_results_mouseup(evt);
659      });
660      this.search_results.bind('mouseover.chosen', function(evt) {
661        _this.search_results_mouseover(evt);
662      });
663      this.search_results.bind('mouseout.chosen', function(evt) {
664        _this.search_results_mouseout(evt);
665      });
666      this.search_results.bind('mousewheel.chosen DOMMouseScroll.chosen', function(evt) {
667        _this.search_results_mousewheel(evt);
668      });
669      this.search_results.bind('touchstart.chosen', function(evt) {
670        _this.search_results_touchstart(evt);
671      });
672      this.search_results.bind('touchmove.chosen', function(evt) {
673        _this.search_results_touchmove(evt);
674      });
675      this.search_results.bind('touchend.chosen', function(evt) {
676        _this.search_results_touchend(evt);
677      });
678      this.form_field_jq.bind("chosen:updated.chosen", function(evt) {
679        _this.results_update_field(evt);
680      });
681      this.form_field_jq.bind("chosen:activate.chosen", function(evt) {
682        _this.activate_field(evt);
683      });
684      this.form_field_jq.bind("chosen:open.chosen", function(evt) {
685        _this.container_mousedown(evt);
686      });
687      this.form_field_jq.bind("chosen:close.chosen", function(evt) {
688        _this.input_blur(evt);
689      });
690      this.search_field.bind('blur.chosen', function(evt) {
691        _this.input_blur(evt);
692      });
693      this.search_field.bind('keyup.chosen', function(evt) {
694        _this.keyup_checker(evt);
695      });
696      this.search_field.bind('keydown.chosen', function(evt) {
697        _this.keydown_checker(evt);
698      });
699      this.search_field.bind('focus.chosen', function(evt) {
700        _this.input_focus(evt);
701      });
702      this.search_field.bind('cut.chosen', function(evt) {
703        _this.clipboard_event_checker(evt);
704      });
705      this.search_field.bind('paste.chosen', function(evt) {
706        _this.clipboard_event_checker(evt);
707      });
708      if (this.is_multiple) {
709        return this.search_choices.bind('click.chosen', function(evt) {
710          _this.choices_click(evt);
711        });
712      } else {
713        return this.container.bind('click.chosen', function(evt) {
714          evt.preventDefault();
715        });
716      }
717    };
718
719    Chosen.prototype.destroy = function() {
720      $(this.container[0].ownerDocument).unbind("click.chosen", this.click_test_action);
721      if (this.search_field[0].tabIndex) {
722        this.form_field_jq[0].tabIndex = this.search_field[0].tabIndex;
723      }
724      this.container.remove();
725      this.form_field_jq.removeData('chosen');
726      return this.form_field_jq.show();
727    };
728
729    Chosen.prototype.search_field_disabled = function() {
730      this.is_disabled = this.form_field_jq[0].disabled;
731      if (this.is_disabled) {
732        this.container.addClass('chosen-disabled');
733        this.search_field[0].disabled = true;
734        if (!this.is_multiple) {
735          this.selected_item.unbind("focus.chosen", this.activate_action);
736        }
737        return this.close_field();
738      } else {
739        this.container.removeClass('chosen-disabled');
740        this.search_field[0].disabled = false;
741        if (!this.is_multiple) {
742          return this.selected_item.bind("focus.chosen", this.activate_action);
743        }
744      }
745    };
746
747    Chosen.prototype.container_mousedown = function(evt) {
748      if (!this.is_disabled) {
749        if (evt && evt.type === "mousedown" && !this.results_showing) {
750          evt.preventDefault();
751        }
752        if (!((evt != null) && ($(evt.target)).hasClass("search-choice-close"))) {
753          if (!this.active_field) {
754            if (this.is_multiple) {
755              this.search_field.val("");
756            }
757            $(this.container[0].ownerDocument).bind('click.chosen', this.click_test_action);
758            this.results_show();
759          } else if (!this.is_multiple && evt && (($(evt.target)[0] === this.selected_item[0]) || $(evt.target).parents("a.chosen-single").length)) {
760            evt.preventDefault();
761            this.results_toggle();
762          }
763          return this.activate_field();
764        }
765      }
766    };
767
768    Chosen.prototype.container_mouseup = function(evt) {
769      if (evt.target.nodeName === "ABBR" && !this.is_disabled) {
770        return this.results_reset(evt);
771      }
772    };
773
774    Chosen.prototype.search_results_mousewheel = function(evt) {
775      var delta;
776      if (evt.originalEvent) {
777        delta = evt.originalEvent.deltaY || -evt.originalEvent.wheelDelta || evt.originalEvent.detail;
778      }
779      if (delta != null) {
780        evt.preventDefault();
781        if (evt.type === 'DOMMouseScroll') {
782          delta = delta * 40;
783        }
784        return this.search_results.scrollTop(delta + this.search_results.scrollTop());
785      }
786    };
787
788    Chosen.prototype.blur_test = function(evt) {
789      if (!this.active_field && this.container.hasClass("chosen-container-active")) {
790        return this.close_field();
791      }
792    };
793
794    Chosen.prototype.close_field = function() {
795      $(this.container[0].ownerDocument).unbind("click.chosen", this.click_test_action);
796      this.active_field = false;
797      this.results_hide();
798      this.container.removeClass("chosen-container-active");
799      this.clear_backstroke();
800      this.show_search_field_default();
801      return this.search_field_scale();
802    };
803
804    Chosen.prototype.activate_field = function() {
805      this.container.addClass("chosen-container-active");
806      this.active_field = true;
807      this.search_field.val(this.search_field.val());
808      return this.search_field.focus();
809    };
810
811    Chosen.prototype.test_active_click = function(evt) {
812      var active_container;
813      active_container = $(evt.target).closest('.chosen-container');
814      if (active_container.length && this.container[0] === active_container[0]) {
815        return this.active_field = true;
816      } else {
817        return this.close_field();
818      }
819    };
820
821    Chosen.prototype.results_build = function() {
822      this.parsing = true;
823      this.selected_option_count = null;
824      this.results_data = SelectParser.select_to_array(this.form_field);
825      if (this.is_multiple) {
826        this.search_choices.find("li.search-choice").remove();
827      } else if (!this.is_multiple) {
828        this.single_set_selected_text();
829        if (this.disable_search || this.form_field.options.length <= this.disable_search_threshold) {
830          this.search_field[0].readOnly = true;
831          this.container.addClass("chosen-container-single-nosearch");
832        } else {
833          this.search_field[0].readOnly = false;
834          this.container.removeClass("chosen-container-single-nosearch");
835        }
836      }
837      this.update_results_content(this.results_option_build({
838        first: true
839      }));
840      this.search_field_disabled();
841      this.show_search_field_default();
842      this.search_field_scale();
843      return this.parsing = false;
844    };
845
846    Chosen.prototype.result_do_highlight = function(el) {
847      var high_bottom, high_top, maxHeight, visible_bottom, visible_top;
848      if (el.length) {
849        this.result_clear_highlight();
850        this.result_highlight = el;
851        this.result_highlight.addClass("highlighted");
852        maxHeight = parseInt(this.search_results.css("maxHeight"), 10);
853        visible_top = this.search_results.scrollTop();
854        visible_bottom = maxHeight + visible_top;
855        high_top = this.result_highlight.position().top + this.search_results.scrollTop();
856        high_bottom = high_top + this.result_highlight.outerHeight();
857        if (high_bottom >= visible_bottom) {
858          return this.search_results.scrollTop((high_bottom - maxHeight) > 0 ? high_bottom - maxHeight : 0);
859        } else if (high_top < visible_top) {
860          return this.search_results.scrollTop(high_top);
861        }
862      }
863    };
864
865    Chosen.prototype.result_clear_highlight = function() {
866      if (this.result_highlight) {
867        this.result_highlight.removeClass("highlighted");
868      }
869      return this.result_highlight = null;
870    };
871
872    Chosen.prototype.results_show = function() {
873      if (this.is_multiple && this.max_selected_options <= this.choices_count()) {
874        this.form_field_jq.trigger("chosen:maxselected", {
875          chosen: this
876        });
877        return false;
878      }
879      this.container.addClass("chosen-with-drop");
880      this.results_showing = true;
881      this.search_field.focus();
882      this.search_field.val(this.search_field.val());
883      this.winnow_results();
884      return this.form_field_jq.trigger("chosen:showing_dropdown", {
885        chosen: this
886      });
887    };
888
889    Chosen.prototype.update_results_content = function(content) {
890      return this.search_results.html(content);
891    };
892
893    Chosen.prototype.results_hide = function() {
894      if (this.results_showing) {
895        this.result_clear_highlight();
896        this.container.removeClass("chosen-with-drop");
897        this.form_field_jq.trigger("chosen:hiding_dropdown", {
898          chosen: this
899        });
900      }
901      return this.results_showing = false;
902    };
903
904    Chosen.prototype.set_tab_index = function(el) {
905      var ti;
906      if (this.form_field.tabIndex) {
907        ti = this.form_field.tabIndex;
908        this.form_field.tabIndex = -1;
909        return this.search_field[0].tabIndex = ti;
910      }
911    };
912
913    Chosen.prototype.set_label_behavior = function() {
914      var _this = this;
915      this.form_field_label = this.form_field_jq.parents("label");
916      if (!this.form_field_label.length && this.form_field.id.length) {
917        this.form_field_label = $("label[for='" + this.form_field.id + "']");
918      }
919      if (this.form_field_label.length > 0) {
920        return this.form_field_label.bind('click.chosen', function(evt) {
921          if (_this.is_multiple) {
922            return _this.container_mousedown(evt);
923          } else {
924            return _this.activate_field();
925          }
926        });
927      }
928    };
929
930    Chosen.prototype.show_search_field_default = function() {
931      if (this.is_multiple && this.choices_count() < 1 && !this.active_field) {
932        this.search_field.val(this.default_text);
933        return this.search_field.addClass("default");
934      } else {
935        this.search_field.val("");
936        return this.search_field.removeClass("default");
937      }
938    };
939
940    Chosen.prototype.search_results_mouseup = function(evt) {
941      var target;
942      target = $(evt.target).hasClass("active-result") ? $(evt.target) : $(evt.target).parents(".active-result").first();
943      if (target.length) {
944        this.result_highlight = target;
945        this.result_select(evt);
946        return this.search_field.focus();
947      }
948    };
949
950    Chosen.prototype.search_results_mouseover = function(evt) {
951      var target;
952      target = $(evt.target).hasClass("active-result") ? $(evt.target) : $(evt.target).parents(".active-result").first();
953      if (target) {
954        return this.result_do_highlight(target);
955      }
956    };
957
958    Chosen.prototype.search_results_mouseout = function(evt) {
959      if ($(evt.target).hasClass("active-result" || $(evt.target).parents('.active-result').first())) {
960        return this.result_clear_highlight();
961      }
962    };
963
964    Chosen.prototype.choice_build = function(item) {
965      var choice, close_link,
966        _this = this;
967      choice = $('<li />', {
968        "class": "search-choice"
969      }).html("<span>" + (this.choice_label(item)) + "</span>");
970      if (item.disabled) {
971        choice.addClass('search-choice-disabled');
972      } else {
973        close_link = $('<a />', {
974          "class": 'search-choice-close',
975          'data-option-array-index': item.array_index
976        });
977        close_link.bind('click.chosen', function(evt) {
978          return _this.choice_destroy_link_click(evt);
979        });
980        choice.append(close_link);
981      }
982      return this.search_container.before(choice);
983    };
984
985    Chosen.prototype.choice_destroy_link_click = function(evt) {
986      evt.preventDefault();
987      evt.stopPropagation();
988      if (!this.is_disabled) {
989        return this.choice_destroy($(evt.target));
990      }
991    };
992
993    Chosen.prototype.choice_destroy = function(link) {
994      if (this.result_deselect(link[0].getAttribute("data-option-array-index"))) {
995        this.show_search_field_default();
996        if (this.is_multiple && this.choices_count() > 0 && this.search_field.val().length < 1) {
997          this.results_hide();
998        }
999        link.parents('li').first().remove();
1000        return this.search_field_scale();
1001      }
1002    };
1003
1004    Chosen.prototype.results_reset = function() {
1005      this.reset_single_select_options();
1006      this.form_field.options[0].selected = true;
1007      this.single_set_selected_text();
1008      this.show_search_field_default();
1009      this.results_reset_cleanup();
1010      this.form_field_jq.trigger("change");
1011      if (this.active_field) {
1012        return this.results_hide();
1013      }
1014    };
1015
1016    Chosen.prototype.results_reset_cleanup = function() {
1017      this.current_selectedIndex = this.form_field.selectedIndex;
1018      return this.selected_item.find("abbr").remove();
1019    };
1020
1021    Chosen.prototype.result_select = function(evt) {
1022      var high, item;
1023      if (this.result_highlight) {
1024        high = this.result_highlight;
1025        this.result_clear_highlight();
1026        if (this.is_multiple && this.max_selected_options <= this.choices_count()) {
1027          this.form_field_jq.trigger("chosen:maxselected", {
1028            chosen: this
1029          });
1030          return false;
1031        }
1032        if (this.is_multiple) {
1033          high.removeClass("active-result");
1034        } else {
1035          this.reset_single_select_options();
1036        }
1037        high.addClass("result-selected");
1038        item = this.results_data[high[0].getAttribute("data-option-array-index")];
1039        item.selected = true;
1040        this.form_field.options[item.options_index].selected = true;
1041        this.selected_option_count = null;
1042        if (this.is_multiple) {
1043          this.choice_build(item);
1044        } else {
1045          this.single_set_selected_text(this.choice_label(item));
1046        }
1047        if (!((evt.metaKey || evt.ctrlKey) && this.is_multiple)) {
1048          this.results_hide();
1049        }
1050        this.search_field.val("");
1051        if (this.is_multiple || this.form_field.selectedIndex !== this.current_selectedIndex) {
1052          this.form_field_jq.trigger("change", {
1053            'selected': this.form_field.options[item.options_index].value
1054          });
1055        }
1056        this.current_selectedIndex = this.form_field.selectedIndex;
1057        evt.preventDefault();
1058        return this.search_field_scale();
1059      }
1060    };
1061
1062    Chosen.prototype.single_set_selected_text = function(text) {
1063      if (text == null) {
1064        text = this.default_text;
1065      }
1066      if (text === this.default_text) {
1067        this.selected_item.addClass("chosen-default");
1068      } else {
1069        this.single_deselect_control_build();
1070        this.selected_item.removeClass("chosen-default");
1071      }
1072      return this.selected_item.find("span").html(text);
1073    };
1074
1075    Chosen.prototype.result_deselect = function(pos) {
1076      var result_data;
1077      result_data = this.results_data[pos];
1078      if (!this.form_field.options[result_data.options_index].disabled) {
1079        result_data.selected = false;
1080        this.form_field.options[result_data.options_index].selected = false;
1081        this.selected_option_count = null;
1082        this.result_clear_highlight();
1083        if (this.results_showing) {
1084          this.winnow_results();
1085        }
1086        this.form_field_jq.trigger("change", {
1087          deselected: this.form_field.options[result_data.options_index].value
1088        });
1089        this.search_field_scale();
1090        return true;
1091      } else {
1092        return false;
1093      }
1094    };
1095
1096    Chosen.prototype.single_deselect_control_build = function() {
1097      if (!this.allow_single_deselect) {
1098        return;
1099      }
1100      if (!this.selected_item.find("abbr").length) {
1101        this.selected_item.find("span").first().after("<abbr class=\"search-choice-close\"></abbr>");
1102      }
1103      return this.selected_item.addClass("chosen-single-with-deselect");
1104    };
1105
1106    Chosen.prototype.get_search_text = function() {
1107      return $('<div/>').text($.trim(this.search_field.val())).html();
1108    };
1109
1110    Chosen.prototype.winnow_results_set_highlight = function() {
1111      var do_high, selected_results;
1112      selected_results = !this.is_multiple ? this.search_results.find(".result-selected.active-result") : [];
1113      do_high = selected_results.length ? selected_results.first() : this.search_results.find(".active-result").first();
1114      if (do_high != null) {
1115        return this.result_do_highlight(do_high);
1116      }
1117    };
1118
1119    Chosen.prototype.no_results = function(terms) {
1120      var no_results_html;
1121      no_results_html = $('<li class="no-results">' + this.results_none_found + ' "<span></span>"</li>');
1122      no_results_html.find("span").first().html(terms);
1123      this.search_results.append(no_results_html);
1124      return this.form_field_jq.trigger("chosen:no_results", {
1125        chosen: this
1126      });
1127    };
1128
1129    Chosen.prototype.no_results_clear = function() {
1130      return this.search_results.find(".no-results").remove();
1131    };
1132
1133    Chosen.prototype.keydown_arrow = function() {
1134      var next_sib;
1135      if (this.results_showing && this.result_highlight) {
1136        next_sib = this.result_highlight.nextAll("li.active-result").first();
1137        if (next_sib) {
1138          return this.result_do_highlight(next_sib);
1139        }
1140      } else {
1141        return this.results_show();
1142      }
1143    };
1144
1145    Chosen.prototype.keyup_arrow = function() {
1146      var prev_sibs;
1147      if (!this.results_showing && !this.is_multiple) {
1148        return this.results_show();
1149      } else if (this.result_highlight) {
1150        prev_sibs = this.result_highlight.prevAll("li.active-result");
1151        if (prev_sibs.length) {
1152          return this.result_do_highlight(prev_sibs.first());
1153        } else {
1154          if (this.choices_count() > 0) {
1155            this.results_hide();
1156          }
1157          return this.result_clear_highlight();
1158        }
1159      }
1160    };
1161
1162    Chosen.prototype.keydown_backstroke = function() {
1163      var next_available_destroy;
1164      if (this.pending_backstroke) {
1165        this.choice_destroy(this.pending_backstroke.find("a").first());
1166        return this.clear_backstroke();
1167      } else {
1168        next_available_destroy = this.search_container.siblings("li.search-choice").last();
1169        if (next_available_destroy.length && !next_available_destroy.hasClass("search-choice-disabled")) {
1170          this.pending_backstroke = next_available_destroy;
1171          if (this.single_backstroke_delete) {
1172            return this.keydown_backstroke();
1173          } else {
1174            return this.pending_backstroke.addClass("search-choice-focus");
1175          }
1176        }
1177      }
1178    };
1179
1180    Chosen.prototype.clear_backstroke = function() {
1181      if (this.pending_backstroke) {
1182        this.pending_backstroke.removeClass("search-choice-focus");
1183      }
1184      return this.pending_backstroke = null;
1185    };
1186
1187    Chosen.prototype.keydown_checker = function(evt) {
1188      var stroke, _ref1;
1189      stroke = (_ref1 = evt.which) != null ? _ref1 : evt.keyCode;
1190      this.search_field_scale();
1191      if (stroke !== 8 && this.pending_backstroke) {
1192        this.clear_backstroke();
1193      }
1194      switch (stroke) {
1195        case 8:
1196          this.backstroke_length = this.search_field.val().length;
1197          break;
1198        case 9:
1199          if (this.results_showing && !this.is_multiple) {
1200            this.result_select(evt);
1201          }
1202          this.mouse_on_container = false;
1203          break;
1204        case 13:
1205          if (this.results_showing) {
1206            evt.preventDefault();
1207          }
1208          break;
1209        case 32:
1210          if (this.disable_search) {
1211            evt.preventDefault();
1212          }
1213          break;
1214        case 38:
1215          evt.preventDefault();
1216          this.keyup_arrow();
1217          break;
1218        case 40:
1219          evt.preventDefault();
1220          this.keydown_arrow();
1221          break;
1222      }
1223    };
1224
1225    Chosen.prototype.search_field_scale = function() {
1226      var div, f_width, h, style, style_block, styles, w, _i, _len;
1227      if (this.is_multiple) {
1228        h = 0;
1229        w = 0;
1230        style_block = "position:absolute; left: -1000px; top: -1000px; display:none;";
1231        styles = ['font-size', 'font-style', 'font-weight', 'font-family', 'line-height', 'text-transform', 'letter-spacing'];
1232        for (_i = 0, _len = styles.length; _i < _len; _i++) {
1233          style = styles[_i];
1234          style_block += style + ":" + this.search_field.css(style) + ";";
1235        }
1236        div = $('<div />', {
1237          'style': style_block
1238        });
1239        div.text(this.search_field.val());
1240        $('body').append(div);
1241        w = div.width() + 25;
1242        div.remove();
1243        f_width = this.container.outerWidth();
1244        if (w > f_width - 10) {
1245          w = f_width - 10;
1246        }
1247        return this.search_field.css({
1248          'width': w + 'px'
1249        });
1250      }
1251    };
1252
1253    return Chosen;
1254
1255  })(AbstractChosen);
1256
1257}).call(this);
1258