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0001 /*!
0002 Chosen, a Select Box Enhancer for jQuery and Prototype
0003 by Patrick Filler for Harvest, http://getharvest.com
0004 
0005 Version 1.8.2
0006 Full source at https://github.com/harvesthq/chosen
0007 Copyright (c) 2011-2017 Harvest http://getharvest.com
0008 
0009 MIT License, https://github.com/harvesthq/chosen/blob/master/LICENSE.md
0010 This file is generated by `grunt build`, do not edit it by hand.
0011 */
0012 
0013 (function() {
0014   var $, AbstractChosen, Chosen, SelectParser,
0015     bind = function(fn, me){ return function(){ return fn.apply(me, arguments); }; },
0016     extend = 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; },
0017     hasProp = {}.hasOwnProperty;
0018 
0019   SelectParser = (function() {
0020     function SelectParser() {
0021       this.options_index = 0;
0022       this.parsed = [];
0023     }
0024 
0025     SelectParser.prototype.add_node = function(child) {
0026       if (child.nodeName.toUpperCase() === "OPTGROUP") {
0027         return this.add_group(child);
0028       } else {
0029         return this.add_option(child);
0030       }
0031     };
0032 
0033     SelectParser.prototype.add_group = function(group) {
0034       var group_position, i, len, option, ref, results1;
0035       group_position = this.parsed.length;
0036       this.parsed.push({
0037         array_index: group_position,
0038         group: true,
0039         label: group.label,
0040         title: group.title ? group.title : void 0,
0041         children: 0,
0042         disabled: group.disabled,
0043         classes: group.className
0044       });
0045       ref = group.childNodes;
0046       results1 = [];
0047       for (i = 0, len = ref.length; i < len; i++) {
0048         option = ref[i];
0049         results1.push(this.add_option(option, group_position, group.disabled));
0050       }
0051       return results1;
0052     };
0053 
0054     SelectParser.prototype.add_option = function(option, group_position, group_disabled) {
0055       if (option.nodeName.toUpperCase() === "OPTION") {
0056         if (option.text !== "") {
0057           if (group_position != null) {
0058             this.parsed[group_position].children += 1;
0059           }
0060           this.parsed.push({
0061             array_index: this.parsed.length,
0062             options_index: this.options_index,
0063             value: option.value,
0064             text: option.text,
0065             html: option.innerHTML,
0066             title: option.title ? option.title : void 0,
0067             selected: option.selected,
0068             disabled: group_disabled === true ? group_disabled : option.disabled,
0069             group_array_index: group_position,
0070             group_label: group_position != null ? this.parsed[group_position].label : null,
0071             classes: option.className,
0072             style: option.style.cssText
0073           });
0074         } else {
0075           this.parsed.push({
0076             array_index: this.parsed.length,
0077             options_index: this.options_index,
0078             empty: true
0079           });
0080         }
0081         return this.options_index += 1;
0082       }
0083     };
0084 
0085     return SelectParser;
0086 
0087   })();
0088 
0089   SelectParser.select_to_array = function(select) {
0090     var child, i, len, parser, ref;
0091     parser = new SelectParser();
0092     ref = select.childNodes;
0093     for (i = 0, len = ref.length; i < len; i++) {
0094       child = ref[i];
0095       parser.add_node(child);
0096     }
0097     return parser.parsed;
0098   };
0099 
0100   AbstractChosen = (function() {
0101     function AbstractChosen(form_field, options1) {
0102       this.form_field = form_field;
0103       this.options = options1 != null ? options1 : {};
0104       this.label_click_handler = bind(this.label_click_handler, this);
0105       if (!AbstractChosen.browser_is_supported()) {
0106         return;
0107       }
0108       this.is_multiple = this.form_field.multiple;
0109       this.set_default_text();
0110       this.set_default_values();
0111       this.setup();
0112       this.set_up_html();
0113       this.register_observers();
0114       this.on_ready();
0115     }
0116 
0117     AbstractChosen.prototype.set_default_values = function() {
0118       this.click_test_action = (function(_this) {
0119         return function(evt) {
0120           return _this.test_active_click(evt);
0121         };
0122       })(this);
0123       this.activate_action = (function(_this) {
0124         return function(evt) {
0125           return _this.activate_field(evt);
0126         };
0127       })(this);
0128       this.active_field = false;
0129       this.mouse_on_container = false;
0130       this.results_showing = false;
0131       this.result_highlighted = null;
0132       this.is_rtl = this.options.rtl || /\bchosen-rtl\b/.test(this.form_field.className);
0133       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;
0134       this.disable_search_threshold = this.options.disable_search_threshold || 0;
0135       this.disable_search = this.options.disable_search || false;
0136       this.enable_split_word_search = this.options.enable_split_word_search != null ? this.options.enable_split_word_search : true;
0137       this.group_search = this.options.group_search != null ? this.options.group_search : true;
0138       this.search_contains = this.options.search_contains || false;
0139       this.single_backstroke_delete = this.options.single_backstroke_delete != null ? this.options.single_backstroke_delete : true;
0140       this.max_selected_options = this.options.max_selected_options || Infinity;
0141       this.inherit_select_classes = this.options.inherit_select_classes || false;
0142       this.display_selected_options = this.options.display_selected_options != null ? this.options.display_selected_options : true;
0143       this.display_disabled_options = this.options.display_disabled_options != null ? this.options.display_disabled_options : true;
0144       this.include_group_label_in_selected = this.options.include_group_label_in_selected || false;
0145       this.max_shown_results = this.options.max_shown_results || Number.POSITIVE_INFINITY;
0146       this.case_sensitive_search = this.options.case_sensitive_search || false;
0147       return this.hide_results_on_select = this.options.hide_results_on_select != null ? this.options.hide_results_on_select : true;
0148     };
0149 
0150     AbstractChosen.prototype.set_default_text = function() {
0151       if (this.form_field.getAttribute("data-placeholder")) {
0152         this.default_text = this.form_field.getAttribute("data-placeholder");
0153       } else if (this.is_multiple) {
0154         this.default_text = this.options.placeholder_text_multiple || this.options.placeholder_text || AbstractChosen.default_multiple_text;
0155       } else {
0156         this.default_text = this.options.placeholder_text_single || this.options.placeholder_text || AbstractChosen.default_single_text;
0157       }
0158       this.default_text = this.escape_html(this.default_text);
0159       return this.results_none_found = this.form_field.getAttribute("data-no_results_text") || this.options.no_results_text || AbstractChosen.default_no_result_text;
0160     };
0161 
0162     AbstractChosen.prototype.choice_label = function(item) {
0163       if (this.include_group_label_in_selected && (item.group_label != null)) {
0164         return "<b class='group-name'>" + item.group_label + "</b>" + item.html;
0165       } else {
0166         return item.html;
0167       }
0168     };
0169 
0170     AbstractChosen.prototype.mouse_enter = function() {
0171       return this.mouse_on_container = true;
0172     };
0173 
0174     AbstractChosen.prototype.mouse_leave = function() {
0175       return this.mouse_on_container = false;
0176     };
0177 
0178     AbstractChosen.prototype.input_focus = function(evt) {
0179       if (this.is_multiple) {
0180         if (!this.active_field) {
0181           return setTimeout(((function(_this) {
0182             return function() {
0183               return _this.container_mousedown();
0184             };
0185           })(this)), 50);
0186         }
0187       } else {
0188         if (!this.active_field) {
0189           return this.activate_field();
0190         }
0191       }
0192     };
0193 
0194     AbstractChosen.prototype.input_blur = function(evt) {
0195       if (!this.mouse_on_container) {
0196         this.active_field = false;
0197         return setTimeout(((function(_this) {
0198           return function() {
0199             return _this.blur_test();
0200           };
0201         })(this)), 100);
0202       }
0203     };
0204 
0205     AbstractChosen.prototype.label_click_handler = function(evt) {
0206       if (this.is_multiple) {
0207         return this.container_mousedown(evt);
0208       } else {
0209         return this.activate_field();
0210       }
0211     };
0212 
0213     AbstractChosen.prototype.results_option_build = function(options) {
0214       var content, data, data_content, i, len, ref, shown_results;
0215       content = '';
0216       shown_results = 0;
0217       ref = this.results_data;
0218       for (i = 0, len = ref.length; i < len; i++) {
0219         data = ref[i];
0220         data_content = '';
0221         if (data.group) {
0222           data_content = this.result_add_group(data);
0223         } else {
0224           data_content = this.result_add_option(data);
0225         }
0226         if (data_content !== '') {
0227           shown_results++;
0228           content += data_content;
0229         }
0230         if (options != null ? options.first : void 0) {
0231           if (data.selected && this.is_multiple) {
0232             this.choice_build(data);
0233           } else if (data.selected && !this.is_multiple) {
0234             this.single_set_selected_text(this.choice_label(data));
0235           }
0236         }
0237         if (shown_results >= this.max_shown_results) {
0238           break;
0239         }
0240       }
0241       return content;
0242     };
0243 
0244     AbstractChosen.prototype.result_add_option = function(option) {
0245       var classes, option_el;
0246       if (!option.search_match) {
0247         return '';
0248       }
0249       if (!this.include_option_in_results(option)) {
0250         return '';
0251       }
0252       classes = [];
0253       if (!option.disabled && !(option.selected && this.is_multiple)) {
0254         classes.push("active-result");
0255       }
0256       if (option.disabled && !(option.selected && this.is_multiple)) {
0257         classes.push("disabled-result");
0258       }
0259       if (option.selected) {
0260         classes.push("result-selected");
0261       }
0262       if (option.group_array_index != null) {
0263         classes.push("group-option");
0264       }
0265       if (option.classes !== "") {
0266         classes.push(option.classes);
0267       }
0268       option_el = document.createElement("li");
0269       option_el.className = classes.join(" ");
0270       option_el.style.cssText = option.style;
0271       option_el.setAttribute("data-option-array-index", option.array_index);
0272       option_el.innerHTML = option.highlighted_html || option.html;
0273       if (option.title) {
0274         option_el.title = option.title;
0275       }
0276       return this.outerHTML(option_el);
0277     };
0278 
0279     AbstractChosen.prototype.result_add_group = function(group) {
0280       var classes, group_el;
0281       if (!(group.search_match || group.group_match)) {
0282         return '';
0283       }
0284       if (!(group.active_options > 0)) {
0285         return '';
0286       }
0287       classes = [];
0288       classes.push("group-result");
0289       if (group.classes) {
0290         classes.push(group.classes);
0291       }
0292       group_el = document.createElement("li");
0293       group_el.className = classes.join(" ");
0294       group_el.innerHTML = group.highlighted_html || this.escape_html(group.label);
0295       if (group.title) {
0296         group_el.title = group.title;
0297       }
0298       return this.outerHTML(group_el);
0299     };
0300 
0301     AbstractChosen.prototype.results_update_field = function() {
0302       this.set_default_text();
0303       if (!this.is_multiple) {
0304         this.results_reset_cleanup();
0305       }
0306       this.result_clear_highlight();
0307       this.results_build();
0308       if (this.results_showing) {
0309         return this.winnow_results();
0310       }
0311     };
0312 
0313     AbstractChosen.prototype.reset_single_select_options = function() {
0314       var i, len, ref, result, results1;
0315       ref = this.results_data;
0316       results1 = [];
0317       for (i = 0, len = ref.length; i < len; i++) {
0318         result = ref[i];
0319         if (result.selected) {
0320           results1.push(result.selected = false);
0321         } else {
0322           results1.push(void 0);
0323         }
0324       }
0325       return results1;
0326     };
0327 
0328     AbstractChosen.prototype.results_toggle = function() {
0329       if (this.results_showing) {
0330         return this.results_hide();
0331       } else {
0332         return this.results_show();
0333       }
0334     };
0335 
0336     AbstractChosen.prototype.results_search = function(evt) {
0337       if (this.results_showing) {
0338         return this.winnow_results();
0339       } else {
0340         return this.results_show();
0341       }
0342     };
0343 
0344     AbstractChosen.prototype.winnow_results = function() {
0345       var escapedQuery, fix, i, len, option, prefix, query, ref, regex, results, results_group, search_match, startpos, suffix, text;
0346       this.no_results_clear();
0347       results = 0;
0348       query = this.get_search_text();
0349       escapedQuery = query.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");
0350       regex = this.get_search_regex(escapedQuery);
0351       ref = this.results_data;
0352       for (i = 0, len = ref.length; i < len; i++) {
0353         option = ref[i];
0354         option.search_match = false;
0355         results_group = null;
0356         search_match = null;
0357         option.highlighted_html = '';
0358         if (this.include_option_in_results(option)) {
0359           if (option.group) {
0360             option.group_match = false;
0361             option.active_options = 0;
0362           }
0363           if ((option.group_array_index != null) && this.results_data[option.group_array_index]) {
0364             results_group = this.results_data[option.group_array_index];
0365             if (results_group.active_options === 0 && results_group.search_match) {
0366               results += 1;
0367             }
0368             results_group.active_options += 1;
0369           }
0370           text = option.group ? option.label : option.text;
0371           if (!(option.group && !this.group_search)) {
0372             search_match = this.search_string_match(text, regex);
0373             option.search_match = search_match != null;
0374             if (option.search_match && !option.group) {
0375               results += 1;
0376             }
0377             if (option.search_match) {
0378               if (query.length) {
0379                 startpos = search_match.index;
0380                 prefix = text.slice(0, startpos);
0381                 fix = text.slice(startpos, startpos + query.length);
0382                 suffix = text.slice(startpos + query.length);
0383                 option.highlighted_html = (this.escape_html(prefix)) + "<em>" + (this.escape_html(fix)) + "</em>" + (this.escape_html(suffix));
0384               }
0385               if (results_group != null) {
0386                 results_group.group_match = true;
0387               }
0388             } else if ((option.group_array_index != null) && this.results_data[option.group_array_index].search_match) {
0389               option.search_match = true;
0390             }
0391           }
0392         }
0393       }
0394       this.result_clear_highlight();
0395       if (results < 1 && query.length) {
0396         this.update_results_content("");
0397         return this.no_results(query);
0398       } else {
0399         this.update_results_content(this.results_option_build());
0400         return this.winnow_results_set_highlight();
0401       }
0402     };
0403 
0404     AbstractChosen.prototype.get_search_regex = function(escaped_search_string) {
0405       var regex_flag, regex_string;
0406       regex_string = this.search_contains ? escaped_search_string : "(^|\\s|\\b)" + escaped_search_string + "[^\\s]*";
0407       if (!(this.enable_split_word_search || this.search_contains)) {
0408         regex_string = "^" + regex_string;
0409       }
0410       regex_flag = this.case_sensitive_search ? "" : "i";
0411       return new RegExp(regex_string, regex_flag);
0412     };
0413 
0414     AbstractChosen.prototype.search_string_match = function(search_string, regex) {
0415       var match;
0416       match = regex.exec(search_string);
0417       if (!this.search_contains && (match != null ? match[1] : void 0)) {
0418         match.index += 1;
0419       }
0420       return match;
0421     };
0422 
0423     AbstractChosen.prototype.choices_count = function() {
0424       var i, len, option, ref;
0425       if (this.selected_option_count != null) {
0426         return this.selected_option_count;
0427       }
0428       this.selected_option_count = 0;
0429       ref = this.form_field.options;
0430       for (i = 0, len = ref.length; i < len; i++) {
0431         option = ref[i];
0432         if (option.selected) {
0433           this.selected_option_count += 1;
0434         }
0435       }
0436       return this.selected_option_count;
0437     };
0438 
0439     AbstractChosen.prototype.choices_click = function(evt) {
0440       evt.preventDefault();
0441       this.activate_field();
0442       if (!(this.results_showing || this.is_disabled)) {
0443         return this.results_show();
0444       }
0445     };
0446 
0447     AbstractChosen.prototype.keydown_checker = function(evt) {
0448       var ref, stroke;
0449       stroke = (ref = evt.which) != null ? ref : evt.keyCode;
0450       this.search_field_scale();
0451       if (stroke !== 8 && this.pending_backstroke) {
0452         this.clear_backstroke();
0453       }
0454       switch (stroke) {
0455         case 8:
0456           this.backstroke_length = this.get_search_field_value().length;
0457           break;
0458         case 9:
0459           if (this.results_showing && !this.is_multiple) {
0460             this.result_select(evt);
0461           }
0462           this.mouse_on_container = false;
0463           break;
0464         case 13:
0465           if (this.results_showing) {
0466             evt.preventDefault();
0467           }
0468           break;
0469         case 27:
0470           if (this.results_showing) {
0471             evt.preventDefault();
0472           }
0473           break;
0474         case 32:
0475           if (this.disable_search) {
0476             evt.preventDefault();
0477           }
0478           break;
0479         case 38:
0480           evt.preventDefault();
0481           this.keyup_arrow();
0482           break;
0483         case 40:
0484           evt.preventDefault();
0485           this.keydown_arrow();
0486           break;
0487       }
0488     };
0489 
0490     AbstractChosen.prototype.keyup_checker = function(evt) {
0491       var ref, stroke;
0492       stroke = (ref = evt.which) != null ? ref : evt.keyCode;
0493       this.search_field_scale();
0494       switch (stroke) {
0495         case 8:
0496           if (this.is_multiple && this.backstroke_length < 1 && this.choices_count() > 0) {
0497             this.keydown_backstroke();
0498           } else if (!this.pending_backstroke) {
0499             this.result_clear_highlight();
0500             this.results_search();
0501           }
0502           break;
0503         case 13:
0504           evt.preventDefault();
0505           if (this.results_showing) {
0506             this.result_select(evt);
0507           }
0508           break;
0509         case 27:
0510           if (this.results_showing) {
0511             this.results_hide();
0512           }
0513           break;
0514         case 9:
0515         case 16:
0516         case 17:
0517         case 18:
0518         case 38:
0519         case 40:
0520         case 91:
0521           break;
0522         default:
0523           this.results_search();
0524           break;
0525       }
0526     };
0527 
0528     AbstractChosen.prototype.clipboard_event_checker = function(evt) {
0529       if (this.is_disabled) {
0530         return;
0531       }
0532       return setTimeout(((function(_this) {
0533         return function() {
0534           return _this.results_search();
0535         };
0536       })(this)), 50);
0537     };
0538 
0539     AbstractChosen.prototype.container_width = function() {
0540       if (this.options.width != null) {
0541         return this.options.width;
0542       } else {
0543         return this.form_field.offsetWidth + "px";
0544       }
0545     };
0546 
0547     AbstractChosen.prototype.include_option_in_results = function(option) {
0548       if (this.is_multiple && (!this.display_selected_options && option.selected)) {
0549         return false;
0550       }
0551       if (!this.display_disabled_options && option.disabled) {
0552         return false;
0553       }
0554       if (option.empty) {
0555         return false;
0556       }
0557       return true;
0558     };
0559 
0560     AbstractChosen.prototype.search_results_touchstart = function(evt) {
0561       this.touch_started = true;
0562       return this.search_results_mouseover(evt);
0563     };
0564 
0565     AbstractChosen.prototype.search_results_touchmove = function(evt) {
0566       this.touch_started = false;
0567       return this.search_results_mouseout(evt);
0568     };
0569 
0570     AbstractChosen.prototype.search_results_touchend = function(evt) {
0571       if (this.touch_started) {
0572         return this.search_results_mouseup(evt);
0573       }
0574     };
0575 
0576     AbstractChosen.prototype.outerHTML = function(element) {
0577       var tmp;
0578       if (element.outerHTML) {
0579         return element.outerHTML;
0580       }
0581       tmp = document.createElement("div");
0582       tmp.appendChild(element);
0583       return tmp.innerHTML;
0584     };
0585 
0586     AbstractChosen.prototype.get_single_html = function() {
0587       return "<a class=\"chosen-single chosen-default\">\n  <span>" + this.default_text + "</span>\n  <div><b></b></div>\n</a>\n<div class=\"chosen-drop\">\n  <div class=\"chosen-search\">\n    <input class=\"chosen-search-input\" type=\"text\" autocomplete=\"off\" />\n  </div>\n  <ul class=\"chosen-results\"></ul>\n</div>";
0588     };
0589 
0590     AbstractChosen.prototype.get_multi_html = function() {
0591       return "<ul class=\"chosen-choices\">\n  <li class=\"search-field\">\n    <input class=\"chosen-search-input\" type=\"text\" autocomplete=\"off\" value=\"" + this.default_text + "\" />\n  </li>\n</ul>\n<div class=\"chosen-drop\">\n  <ul class=\"chosen-results\"></ul>\n</div>";
0592     };
0593 
0594     AbstractChosen.prototype.get_no_results_html = function(terms) {
0595       return "<li class=\"no-results\">\n  " + this.results_none_found + " <span>" + (this.escape_html(terms)) + "</span>\n</li>";
0596     };
0597 
0598     AbstractChosen.browser_is_supported = function() {
0599       if ("Microsoft Internet Explorer" === window.navigator.appName) {
0600         return document.documentMode >= 8;
0601       }
0602       if (/iP(od|hone)/i.test(window.navigator.userAgent) || /IEMobile/i.test(window.navigator.userAgent) || /Windows Phone/i.test(window.navigator.userAgent) || /BlackBerry/i.test(window.navigator.userAgent) || /BB10/i.test(window.navigator.userAgent) || /Android.*Mobile/i.test(window.navigator.userAgent)) {
0603         return false;
0604       }
0605       return true;
0606     };
0607 
0608     AbstractChosen.default_multiple_text = "Select Some Options";
0609 
0610     AbstractChosen.default_single_text = "Select an Option";
0611 
0612     AbstractChosen.default_no_result_text = "No results match";
0613 
0614     return AbstractChosen;
0615 
0616   })();
0617 
0618   $ = jQuery;
0619 
0620   $.fn.extend({
0621     chosen: function(options) {
0622       if (!AbstractChosen.browser_is_supported()) {
0623         return this;
0624       }
0625       return this.each(function(input_field) {
0626         var $this, chosen;
0627         $this = $(this);
0628         chosen = $this.data('chosen');
0629         if (options === 'destroy') {
0630           if (chosen instanceof Chosen) {
0631             chosen.destroy();
0632           }
0633           return;
0634         }
0635         if (!(chosen instanceof Chosen)) {
0636           $this.data('chosen', new Chosen(this, options));
0637         }
0638       });
0639     }
0640   });
0641 
0642   Chosen = (function(superClass) {
0643     extend(Chosen, superClass);
0644 
0645     function Chosen() {
0646       return Chosen.__super__.constructor.apply(this, arguments);
0647     }
0648 
0649     Chosen.prototype.setup = function() {
0650       this.form_field_jq = $(this.form_field);
0651       return this.current_selectedIndex = this.form_field.selectedIndex;
0652     };
0653 
0654     Chosen.prototype.set_up_html = function() {
0655       var container_classes, container_props;
0656       container_classes = ["chosen-container"];
0657       container_classes.push("chosen-container-" + (this.is_multiple ? "multi" : "single"));
0658       if (this.inherit_select_classes && this.form_field.className) {
0659         container_classes.push(this.form_field.className);
0660       }
0661       if (this.is_rtl) {
0662         container_classes.push("chosen-rtl");
0663       }
0664       container_props = {
0665         'class': container_classes.join(' '),
0666         'title': this.form_field.title
0667       };
0668       if (this.form_field.id.length) {
0669         container_props.id = this.form_field.id.replace(/[^\w]/g, '_') + "_chosen";
0670       }
0671       this.container = $("<div />", container_props);
0672       this.container.width(this.container_width());
0673       if (this.is_multiple) {
0674         this.container.html(this.get_multi_html());
0675       } else {
0676         this.container.html(this.get_single_html());
0677       }
0678       this.form_field_jq.hide().after(this.container);
0679       this.dropdown = this.container.find('div.chosen-drop').first();
0680       this.search_field = this.container.find('input').first();
0681       this.search_results = this.container.find('ul.chosen-results').first();
0682       this.search_field_scale();
0683       this.search_no_results = this.container.find('li.no-results').first();
0684       if (this.is_multiple) {
0685         this.search_choices = this.container.find('ul.chosen-choices').first();
0686         this.search_container = this.container.find('li.search-field').first();
0687       } else {
0688         this.search_container = this.container.find('div.chosen-search').first();
0689         this.selected_item = this.container.find('.chosen-single').first();
0690       }
0691       this.results_build();
0692       this.set_tab_index();
0693       return this.set_label_behavior();
0694     };
0695 
0696     Chosen.prototype.on_ready = function() {
0697       return this.form_field_jq.trigger("chosen:ready", {
0698         chosen: this
0699       });
0700     };
0701 
0702     Chosen.prototype.register_observers = function() {
0703       this.container.on('touchstart.chosen', (function(_this) {
0704         return function(evt) {
0705           _this.container_mousedown(evt);
0706         };
0707       })(this));
0708       this.container.on('touchend.chosen', (function(_this) {
0709         return function(evt) {
0710           _this.container_mouseup(evt);
0711         };
0712       })(this));
0713       this.container.on('mousedown.chosen', (function(_this) {
0714         return function(evt) {
0715           _this.container_mousedown(evt);
0716         };
0717       })(this));
0718       this.container.on('mouseup.chosen', (function(_this) {
0719         return function(evt) {
0720           _this.container_mouseup(evt);
0721         };
0722       })(this));
0723       this.container.on('mouseenter.chosen', (function(_this) {
0724         return function(evt) {
0725           _this.mouse_enter(evt);
0726         };
0727       })(this));
0728       this.container.on('mouseleave.chosen', (function(_this) {
0729         return function(evt) {
0730           _this.mouse_leave(evt);
0731         };
0732       })(this));
0733       this.search_results.on('mouseup.chosen', (function(_this) {
0734         return function(evt) {
0735           _this.search_results_mouseup(evt);
0736         };
0737       })(this));
0738       this.search_results.on('mouseover.chosen', (function(_this) {
0739         return function(evt) {
0740           _this.search_results_mouseover(evt);
0741         };
0742       })(this));
0743       this.search_results.on('mouseout.chosen', (function(_this) {
0744         return function(evt) {
0745           _this.search_results_mouseout(evt);
0746         };
0747       })(this));
0748       this.search_results.on('mousewheel.chosen DOMMouseScroll.chosen', (function(_this) {
0749         return function(evt) {
0750           _this.search_results_mousewheel(evt);
0751         };
0752       })(this));
0753       this.search_results.on('touchstart.chosen', (function(_this) {
0754         return function(evt) {
0755           _this.search_results_touchstart(evt);
0756         };
0757       })(this));
0758       this.search_results.on('touchmove.chosen', (function(_this) {
0759         return function(evt) {
0760           _this.search_results_touchmove(evt);
0761         };
0762       })(this));
0763       this.search_results.on('touchend.chosen', (function(_this) {
0764         return function(evt) {
0765           _this.search_results_touchend(evt);
0766         };
0767       })(this));
0768       this.form_field_jq.on("chosen:updated.chosen", (function(_this) {
0769         return function(evt) {
0770           _this.results_update_field(evt);
0771         };
0772       })(this));
0773       this.form_field_jq.on("chosen:activate.chosen", (function(_this) {
0774         return function(evt) {
0775           _this.activate_field(evt);
0776         };
0777       })(this));
0778       this.form_field_jq.on("chosen:open.chosen", (function(_this) {
0779         return function(evt) {
0780           _this.container_mousedown(evt);
0781         };
0782       })(this));
0783       this.form_field_jq.on("chosen:close.chosen", (function(_this) {
0784         return function(evt) {
0785           _this.close_field(evt);
0786         };
0787       })(this));
0788       this.search_field.on('blur.chosen', (function(_this) {
0789         return function(evt) {
0790           _this.input_blur(evt);
0791         };
0792       })(this));
0793       this.search_field.on('keyup.chosen', (function(_this) {
0794         return function(evt) {
0795           _this.keyup_checker(evt);
0796         };
0797       })(this));
0798       this.search_field.on('keydown.chosen', (function(_this) {
0799         return function(evt) {
0800           _this.keydown_checker(evt);
0801         };
0802       })(this));
0803       this.search_field.on('focus.chosen', (function(_this) {
0804         return function(evt) {
0805           _this.input_focus(evt);
0806         };
0807       })(this));
0808       this.search_field.on('cut.chosen', (function(_this) {
0809         return function(evt) {
0810           _this.clipboard_event_checker(evt);
0811         };
0812       })(this));
0813       this.search_field.on('paste.chosen', (function(_this) {
0814         return function(evt) {
0815           _this.clipboard_event_checker(evt);
0816         };
0817       })(this));
0818       if (this.is_multiple) {
0819         return this.search_choices.on('click.chosen', (function(_this) {
0820           return function(evt) {
0821             _this.choices_click(evt);
0822           };
0823         })(this));
0824       } else {
0825         return this.container.on('click.chosen', function(evt) {
0826           evt.preventDefault();
0827         });
0828       }
0829     };
0830 
0831     Chosen.prototype.destroy = function() {
0832       $(this.container[0].ownerDocument).off('click.chosen', this.click_test_action);
0833       if (this.form_field_label.length > 0) {
0834         this.form_field_label.off('click.chosen');
0835       }
0836       if (this.search_field[0].tabIndex) {
0837         this.form_field_jq[0].tabIndex = this.search_field[0].tabIndex;
0838       }
0839       this.container.remove();
0840       this.form_field_jq.removeData('chosen');
0841       return this.form_field_jq.show();
0842     };
0843 
0844     Chosen.prototype.search_field_disabled = function() {
0845       this.is_disabled = this.form_field.disabled || this.form_field_jq.parents('fieldset').is(':disabled');
0846       this.container.toggleClass('chosen-disabled', this.is_disabled);
0847       this.search_field[0].disabled = this.is_disabled;
0848       if (!this.is_multiple) {
0849         this.selected_item.off('focus.chosen', this.activate_field);
0850       }
0851       if (this.is_disabled) {
0852         return this.close_field();
0853       } else if (!this.is_multiple) {
0854         return this.selected_item.on('focus.chosen', this.activate_field);
0855       }
0856     };
0857 
0858     Chosen.prototype.container_mousedown = function(evt) {
0859       var ref;
0860       if (this.is_disabled) {
0861         return;
0862       }
0863       if (evt && ((ref = evt.type) === 'mousedown' || ref === 'touchstart') && !this.results_showing) {
0864         evt.preventDefault();
0865       }
0866       if (!((evt != null) && ($(evt.target)).hasClass("search-choice-close"))) {
0867         if (!this.active_field) {
0868           if (this.is_multiple) {
0869             this.search_field.val("");
0870           }
0871           $(this.container[0].ownerDocument).on('click.chosen', this.click_test_action);
0872           this.results_show();
0873         } else if (!this.is_multiple && evt && (($(evt.target)[0] === this.selected_item[0]) || $(evt.target).parents("a.chosen-single").length)) {
0874           evt.preventDefault();
0875           this.results_toggle();
0876         }
0877         return this.activate_field();
0878       }
0879     };
0880 
0881     Chosen.prototype.container_mouseup = function(evt) {
0882       if (evt.target.nodeName === "ABBR" && !this.is_disabled) {
0883         return this.results_reset(evt);
0884       }
0885     };
0886 
0887     Chosen.prototype.search_results_mousewheel = function(evt) {
0888       var delta;
0889       if (evt.originalEvent) {
0890         delta = evt.originalEvent.deltaY || -evt.originalEvent.wheelDelta || evt.originalEvent.detail;
0891       }
0892       if (delta != null) {
0893         evt.preventDefault();
0894         if (evt.type === 'DOMMouseScroll') {
0895           delta = delta * 40;
0896         }
0897         return this.search_results.scrollTop(delta + this.search_results.scrollTop());
0898       }
0899     };
0900 
0901     Chosen.prototype.blur_test = function(evt) {
0902       if (!this.active_field && this.container.hasClass("chosen-container-active")) {
0903         return this.close_field();
0904       }
0905     };
0906 
0907     Chosen.prototype.close_field = function() {
0908       $(this.container[0].ownerDocument).off("click.chosen", this.click_test_action);
0909       this.active_field = false;
0910       this.results_hide();
0911       this.container.removeClass("chosen-container-active");
0912       this.clear_backstroke();
0913       this.show_search_field_default();
0914       this.search_field_scale();
0915       return this.search_field.blur();
0916     };
0917 
0918     Chosen.prototype.activate_field = function() {
0919       if (this.is_disabled) {
0920         return;
0921       }
0922       this.container.addClass("chosen-container-active");
0923       this.active_field = true;
0924       this.search_field.val(this.search_field.val());
0925       return this.search_field.focus();
0926     };
0927 
0928     Chosen.prototype.test_active_click = function(evt) {
0929       var active_container;
0930       active_container = $(evt.target).closest('.chosen-container');
0931       if (active_container.length && this.container[0] === active_container[0]) {
0932         return this.active_field = true;
0933       } else {
0934         return this.close_field();
0935       }
0936     };
0937 
0938     Chosen.prototype.results_build = function() {
0939       this.parsing = true;
0940       this.selected_option_count = null;
0941       this.results_data = SelectParser.select_to_array(this.form_field);
0942       if (this.is_multiple) {
0943         this.search_choices.find("li.search-choice").remove();
0944       } else if (!this.is_multiple) {
0945         this.single_set_selected_text();
0946         if (this.disable_search || this.form_field.options.length <= this.disable_search_threshold) {
0947           this.search_field[0].readOnly = true;
0948           this.container.addClass("chosen-container-single-nosearch");
0949         } else {
0950           this.search_field[0].readOnly = false;
0951           this.container.removeClass("chosen-container-single-nosearch");
0952         }
0953       }
0954       this.update_results_content(this.results_option_build({
0955         first: true
0956       }));
0957       this.search_field_disabled();
0958       this.show_search_field_default();
0959       this.search_field_scale();
0960       return this.parsing = false;
0961     };
0962 
0963     Chosen.prototype.result_do_highlight = function(el) {
0964       var high_bottom, high_top, maxHeight, visible_bottom, visible_top;
0965       if (el.length) {
0966         this.result_clear_highlight();
0967         this.result_highlight = el;
0968         this.result_highlight.addClass("highlighted");
0969         maxHeight = parseInt(this.search_results.css("maxHeight"), 10);
0970         visible_top = this.search_results.scrollTop();
0971         visible_bottom = maxHeight + visible_top;
0972         high_top = this.result_highlight.position().top + this.search_results.scrollTop();
0973         high_bottom = high_top + this.result_highlight.outerHeight();
0974         if (high_bottom >= visible_bottom) {
0975           return this.search_results.scrollTop((high_bottom - maxHeight) > 0 ? high_bottom - maxHeight : 0);
0976         } else if (high_top < visible_top) {
0977           return this.search_results.scrollTop(high_top);
0978         }
0979       }
0980     };
0981 
0982     Chosen.prototype.result_clear_highlight = function() {
0983       if (this.result_highlight) {
0984         this.result_highlight.removeClass("highlighted");
0985       }
0986       return this.result_highlight = null;
0987     };
0988 
0989     Chosen.prototype.results_show = function() {
0990       if (this.is_multiple && this.max_selected_options <= this.choices_count()) {
0991         this.form_field_jq.trigger("chosen:maxselected", {
0992           chosen: this
0993         });
0994         return false;
0995       }
0996       this.container.addClass("chosen-with-drop");
0997       this.results_showing = true;
0998       this.search_field.focus();
0999       this.search_field.val(this.get_search_field_value());
1000       this.winnow_results();
1001       return this.form_field_jq.trigger("chosen:showing_dropdown", {
1002         chosen: this
1003       });
1004     };
1005 
1006     Chosen.prototype.update_results_content = function(content) {
1007       return this.search_results.html(content);
1008     };
1009 
1010     Chosen.prototype.results_hide = function() {
1011       if (this.results_showing) {
1012         this.result_clear_highlight();
1013         this.container.removeClass("chosen-with-drop");
1014         this.form_field_jq.trigger("chosen:hiding_dropdown", {
1015           chosen: this
1016         });
1017       }
1018       return this.results_showing = false;
1019     };
1020 
1021     Chosen.prototype.set_tab_index = function(el) {
1022       var ti;
1023       if (this.form_field.tabIndex) {
1024         ti = this.form_field.tabIndex;
1025         this.form_field.tabIndex = -1;
1026         return this.search_field[0].tabIndex = ti;
1027       }
1028     };
1029 
1030     Chosen.prototype.set_label_behavior = function() {
1031       this.form_field_label = this.form_field_jq.parents("label");
1032       if (!this.form_field_label.length && this.form_field.id.length) {
1033         this.form_field_label = $("label[for='" + this.form_field.id + "']");
1034       }
1035       if (this.form_field_label.length > 0) {
1036         return this.form_field_label.on('click.chosen', this.label_click_handler);
1037       }
1038     };
1039 
1040     Chosen.prototype.show_search_field_default = function() {
1041       if (this.is_multiple && this.choices_count() < 1 && !this.active_field) {
1042         this.search_field.val(this.default_text);
1043         return this.search_field.addClass("default");
1044       } else {
1045         this.search_field.val("");
1046         return this.search_field.removeClass("default");
1047       }
1048     };
1049 
1050     Chosen.prototype.search_results_mouseup = function(evt) {
1051       var target;
1052       target = $(evt.target).hasClass("active-result") ? $(evt.target) : $(evt.target).parents(".active-result").first();
1053       if (target.length) {
1054         this.result_highlight = target;
1055         this.result_select(evt);
1056         return this.search_field.focus();
1057       }
1058     };
1059 
1060     Chosen.prototype.search_results_mouseover = function(evt) {
1061       var target;
1062       target = $(evt.target).hasClass("active-result") ? $(evt.target) : $(evt.target).parents(".active-result").first();
1063       if (target) {
1064         return this.result_do_highlight(target);
1065       }
1066     };
1067 
1068     Chosen.prototype.search_results_mouseout = function(evt) {
1069       if ($(evt.target).hasClass("active-result") || $(evt.target).parents('.active-result').first()) {
1070         return this.result_clear_highlight();
1071       }
1072     };
1073 
1074     Chosen.prototype.choice_build = function(item) {
1075       var choice, close_link;
1076       choice = $('<li />', {
1077         "class": "search-choice"
1078       }).html("<span>" + (this.choice_label(item)) + "</span>");
1079       if (item.disabled) {
1080         choice.addClass('search-choice-disabled');
1081       } else {
1082         close_link = $('<a />', {
1083           "class": 'search-choice-close',
1084           'data-option-array-index': item.array_index
1085         });
1086         close_link.on('click.chosen', (function(_this) {
1087           return function(evt) {
1088             return _this.choice_destroy_link_click(evt);
1089           };
1090         })(this));
1091         choice.append(close_link);
1092       }
1093       return this.search_container.before(choice);
1094     };
1095 
1096     Chosen.prototype.choice_destroy_link_click = function(evt) {
1097       evt.preventDefault();
1098       evt.stopPropagation();
1099       if (!this.is_disabled) {
1100         return this.choice_destroy($(evt.target));
1101       }
1102     };
1103 
1104     Chosen.prototype.choice_destroy = function(link) {
1105       if (this.result_deselect(link[0].getAttribute("data-option-array-index"))) {
1106         if (this.active_field) {
1107           this.search_field.focus();
1108         } else {
1109           this.show_search_field_default();
1110         }
1111         if (this.is_multiple && this.choices_count() > 0 && this.get_search_field_value().length < 1) {
1112           this.results_hide();
1113         }
1114         link.parents('li').first().remove();
1115         return this.search_field_scale();
1116       }
1117     };
1118 
1119     Chosen.prototype.results_reset = function() {
1120       this.reset_single_select_options();
1121       this.form_field.options[0].selected = true;
1122       this.single_set_selected_text();
1123       this.show_search_field_default();
1124       this.results_reset_cleanup();
1125       this.trigger_form_field_change();
1126       if (this.active_field) {
1127         return this.results_hide();
1128       }
1129     };
1130 
1131     Chosen.prototype.results_reset_cleanup = function() {
1132       this.current_selectedIndex = this.form_field.selectedIndex;
1133       return this.selected_item.find("abbr").remove();
1134     };
1135 
1136     Chosen.prototype.result_select = function(evt) {
1137       var high, item;
1138       if (this.result_highlight) {
1139         high = this.result_highlight;
1140         this.result_clear_highlight();
1141         if (this.is_multiple && this.max_selected_options <= this.choices_count()) {
1142           this.form_field_jq.trigger("chosen:maxselected", {
1143             chosen: this
1144           });
1145           return false;
1146         }
1147         if (this.is_multiple) {
1148           high.removeClass("active-result");
1149         } else {
1150           this.reset_single_select_options();
1151         }
1152         high.addClass("result-selected");
1153         item = this.results_data[high[0].getAttribute("data-option-array-index")];
1154         item.selected = true;
1155         this.form_field.options[item.options_index].selected = true;
1156         this.selected_option_count = null;
1157         this.search_field.val("");
1158         if (this.is_multiple) {
1159           this.choice_build(item);
1160         } else {
1161           this.single_set_selected_text(this.choice_label(item));
1162         }
1163         if (this.is_multiple && (!this.hide_results_on_select || (evt.metaKey || evt.ctrlKey))) {
1164           this.winnow_results();
1165         } else {
1166           this.results_hide();
1167           this.show_search_field_default();
1168         }
1169         if (this.is_multiple || this.form_field.selectedIndex !== this.current_selectedIndex) {
1170           this.trigger_form_field_change({
1171             selected: this.form_field.options[item.options_index].value
1172           });
1173         }
1174         this.current_selectedIndex = this.form_field.selectedIndex;
1175         evt.preventDefault();
1176         return this.search_field_scale();
1177       }
1178     };
1179 
1180     Chosen.prototype.single_set_selected_text = function(text) {
1181       if (text == null) {
1182         text = this.default_text;
1183       }
1184       if (text === this.default_text) {
1185         this.selected_item.addClass("chosen-default");
1186       } else {
1187         this.single_deselect_control_build();
1188         this.selected_item.removeClass("chosen-default");
1189       }
1190       return this.selected_item.find("span").html(text);
1191     };
1192 
1193     Chosen.prototype.result_deselect = function(pos) {
1194       var result_data;
1195       result_data = this.results_data[pos];
1196       if (!this.form_field.options[result_data.options_index].disabled) {
1197         result_data.selected = false;
1198         this.form_field.options[result_data.options_index].selected = false;
1199         this.selected_option_count = null;
1200         this.result_clear_highlight();
1201         if (this.results_showing) {
1202           this.winnow_results();
1203         }
1204         this.trigger_form_field_change({
1205           deselected: this.form_field.options[result_data.options_index].value
1206         });
1207         this.search_field_scale();
1208         return true;
1209       } else {
1210         return false;
1211       }
1212     };
1213 
1214     Chosen.prototype.single_deselect_control_build = function() {
1215       if (!this.allow_single_deselect) {
1216         return;
1217       }
1218       if (!this.selected_item.find("abbr").length) {
1219         this.selected_item.find("span").first().after("<abbr class=\"search-choice-close\"></abbr>");
1220       }
1221       return this.selected_item.addClass("chosen-single-with-deselect");
1222     };
1223 
1224     Chosen.prototype.get_search_field_value = function() {
1225       return this.search_field.val();
1226     };
1227 
1228     Chosen.prototype.get_search_text = function() {
1229       return $.trim(this.get_search_field_value());
1230     };
1231 
1232     Chosen.prototype.escape_html = function(text) {
1233       return $('<div/>').text(text).html();
1234     };
1235 
1236     Chosen.prototype.winnow_results_set_highlight = function() {
1237       var do_high, selected_results;
1238       selected_results = !this.is_multiple ? this.search_results.find(".result-selected.active-result") : [];
1239       do_high = selected_results.length ? selected_results.first() : this.search_results.find(".active-result").first();
1240       if (do_high != null) {
1241         return this.result_do_highlight(do_high);
1242       }
1243     };
1244 
1245     Chosen.prototype.no_results = function(terms) {
1246       var no_results_html;
1247       no_results_html = this.get_no_results_html(terms);
1248       this.search_results.append(no_results_html);
1249       return this.form_field_jq.trigger("chosen:no_results", {
1250         chosen: this
1251       });
1252     };
1253 
1254     Chosen.prototype.no_results_clear = function() {
1255       return this.search_results.find(".no-results").remove();
1256     };
1257 
1258     Chosen.prototype.keydown_arrow = function() {
1259       var next_sib;
1260       if (this.results_showing && this.result_highlight) {
1261         next_sib = this.result_highlight.nextAll("li.active-result").first();
1262         if (next_sib) {
1263           return this.result_do_highlight(next_sib);
1264         }
1265       } else {
1266         return this.results_show();
1267       }
1268     };
1269 
1270     Chosen.prototype.keyup_arrow = function() {
1271       var prev_sibs;
1272       if (!this.results_showing && !this.is_multiple) {
1273         return this.results_show();
1274       } else if (this.result_highlight) {
1275         prev_sibs = this.result_highlight.prevAll("li.active-result");
1276         if (prev_sibs.length) {
1277           return this.result_do_highlight(prev_sibs.first());
1278         } else {
1279           if (this.choices_count() > 0) {
1280             this.results_hide();
1281           }
1282           return this.result_clear_highlight();
1283         }
1284       }
1285     };
1286 
1287     Chosen.prototype.keydown_backstroke = function() {
1288       var next_available_destroy;
1289       if (this.pending_backstroke) {
1290         this.choice_destroy(this.pending_backstroke.find("a").first());
1291         return this.clear_backstroke();
1292       } else {
1293         next_available_destroy = this.search_container.siblings("li.search-choice").last();
1294         if (next_available_destroy.length && !next_available_destroy.hasClass("search-choice-disabled")) {
1295           this.pending_backstroke = next_available_destroy;
1296           if (this.single_backstroke_delete) {
1297             return this.keydown_backstroke();
1298           } else {
1299             return this.pending_backstroke.addClass("search-choice-focus");
1300           }
1301         }
1302       }
1303     };
1304 
1305     Chosen.prototype.clear_backstroke = function() {
1306       if (this.pending_backstroke) {
1307         this.pending_backstroke.removeClass("search-choice-focus");
1308       }
1309       return this.pending_backstroke = null;
1310     };
1311 
1312     Chosen.prototype.search_field_scale = function() {
1313       var div, i, len, style, style_block, styles, width;
1314       if (!this.is_multiple) {
1315         return;
1316       }
1317       style_block = {
1318         position: 'absolute',
1319         left: '-1000px',
1320         top: '-1000px',
1321         display: 'none',
1322         whiteSpace: 'pre'
1323       };
1324       styles = ['fontSize', 'fontStyle', 'fontWeight', 'fontFamily', 'lineHeight', 'textTransform', 'letterSpacing'];
1325       for (i = 0, len = styles.length; i < len; i++) {
1326         style = styles[i];
1327         style_block[style] = this.search_field.css(style);
1328       }
1329       div = $('<div />').css(style_block);
1330       div.text(this.get_search_field_value());
1331       $('body').append(div);
1332       width = div.width() + 25;
1333       div.remove();
1334       if (this.container.is(':visible')) {
1335         width = Math.min(this.container.outerWidth() - 10, width);
1336       }
1337       return this.search_field.width(width);
1338     };
1339 
1340     Chosen.prototype.trigger_form_field_change = function(extra) {
1341       this.form_field_jq.trigger("input", extra);
1342       return this.form_field_jq.trigger("change", extra);
1343     };
1344 
1345     return Chosen;
1346 
1347   })(AbstractChosen);
1348 
1349 }).call(this);