https://www.imperial-rac.com/wp-content/plugins/Woocommerce-Rental…/assets/js/chosen.jquery.js?ver=7.1.2

1// Chosen, a Select Box Enhancer for jQuery and Prototype
2// by Patrick Filler for Harvest, http://getharvest.com
3//
4// Version 0.14.0
5// Full source at https://github.com/harvesthq/chosen
6// Copyright (c) 2011 Harvest http://getharvest.com
7
8// MIT License, https://github.com/harvesthq/chosen/blob/master/LICENSE.md
9// This file is generated by `grunt build`, do not edit it by hand.
10(function() {
11  var $, AbstractChosen, Chosen, SelectParser, _ref,
12    __hasProp = {}.hasOwnProperty,
13    __extends = function(child, parent) { for (var key in parent) { if (__hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; };
14
15  SelectParser = (function() {
16    function SelectParser() {
17      this.options_index = 0;
18      this.parsed = [];
19    }
20
21    SelectParser.prototype.add_node = function(child) {
22      if (child.nodeName.toUpperCase() === "OPTGROUP") {
23        return this.add_group(child);
24      } else {
25        return this.add_option(child);
26      }
27    };
28
29    SelectParser.prototype.add_group = function(group) {
30      var group_position, option, _i, _len, _ref, _results;
31
32      group_position = this.parsed.length;
33      this.parsed.push({
34        array_index: group_position,
35        group: true,
36        label: this.escapeExpression(group.label),
37        children: 0,
38        disabled: group.disabled
39      });
40      _ref = group.childNodes;
41      _results = [];
42      for (_i = 0, _len = _ref.length; _i < _len; _i++) {
43        option = _ref[_i];
44        _results.push(this.add_option(option, group_position, group.disabled));
45      }
46      return _results;
47    };
48
49    SelectParser.prototype.add_option = function(option, group_position, group_disabled) {
50      if (option.nodeName.toUpperCase() === "OPTION") {
51        if (option.text !== "") {
52          if (group_position != null) {
53            this.parsed[group_position].children += 1;
54          }
55          this.parsed.push({
56            array_index: this.parsed.length,
57            options_index: this.options_index,
58            value: option.value,
59            text: option.text,
60            html: option.innerHTML,
61            selected: option.selected,
62            disabled: group_disabled === true ? group_disabled : option.disabled,
63            group_array_index: group_position,
64            classes: option.className,
65            style: option.style.cssText
66          });
67        } else {
68          this.parsed.push({
69            array_index: this.parsed.length,
70            options_index: this.options_index,
71            empty: true
72          });
73        }
74        return this.options_index += 1;
75      }
76    };
77
78    SelectParser.prototype.escapeExpression = function(text) {
79      var map, unsafe_chars;
80
81      if ((text == null) || text === false) {
82        return "";
83      }
84      if (!/[\&\<\>\"\'\`]/.test(text)) {
85        return text;
86      }
87      map = {
88        "<": "&lt;",
89        ">": "&gt;",
90        '"': "&quot;",
91        "'": "&#x27;",
92        "`": "&#x60;"
93      };
94      unsafe_chars = /&(?!\w+;)|[\<\>\"\'\`]/g;
95      return text.replace(unsafe_chars, function(chr) {
96        return map[chr] || "&amp;";
97      });
98    };
99
100    return SelectParser;
101
102  })();
103
104  SelectParser.select_to_array = function(select) {
105    var child, parser, _i, _len, _ref;
106
107    parser = new SelectParser();
108    _ref = select.childNodes;
109    for (_i = 0, _len = _ref.length; _i < _len; _i++) {
110      child = _ref[_i];
111      parser.add_node(child);
112    }
113    return parser.parsed;
114  };
115
116  AbstractChosen = (function() {
117    function AbstractChosen(form_field, options) {
118      this.form_field = form_field;
119      this.options = options != null ? options : {};
120      if (!AbstractChosen.browser_is_supported()) {
121        return;
122      }
123      this.is_multiple = this.form_field.multiple;
124      this.set_default_text();
125      this.set_default_values();
126      this.setup();
127      this.set_up_html();
128      this.register_observers();
129      this.finish_setup();
130    }
131
132    AbstractChosen.prototype.set_default_values = function() {
133      var _this = this;
134
135      this.click_test_action = function(evt) {
136        return _this.test_active_click(evt);
137      };
138      this.activate_action = function(evt) {
139        return _this.activate_field(evt);
140      };
141      this.active_field = false;

297      var escapedSearchText, option, regex, regexAnchor, results, results_group, searchText, startpos, text, zregex, _i, _len, _ref;
298
299      this.no_results_clear();
300      results = 0;
301      searchText = this.get_search_text();
302      escapedSearchText = searchText.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");
303      regexAnchor = this.search_contains ? "" : "^";
304      regex = new RegExp(regexAnchor + escapedSearchText, 'i');
305      zregex = new RegExp(escapedSearchText, 'i');
306      _ref = this.results_data;
307      for (_i = 0, _len = _ref.length; _i < _len; _i++) {
308        option = _ref[_i];
309        option.search_match = false;
310        results_group = null;
311        if (this.include_option_in_results(option)) {
312          if (option.group) {
313            option.group_match = false;
314            option.active_options = 0;
315          }
316          if ((option.group_array_index != null) && this.results_data[option.group_array_index]) {
317            results_group = this.results_data[option.group_array_index];
318            if (results_group.active_options === 0 && results_group.search_match) {
319              results += 1;
320            }
321            results_group.active_options += 1;
322          }
323          if (!(option.group && !this.group_search)) {
324            option.search_text = option.group ? option.label : option.html;
325            option.search_match = this.search_string_match(option.search_text, regex);
326            if (option.search_match && !option.group) {
327              results += 1;
328            }
329            if (option.search_match) {
330              if (searchText.length) {
331                startpos = option.search_text.search(zregex);
332                text = option.search_text.substr(0, startpos + searchText.length) + '</em>' + option.search_text.substr(startpos + searchText.length);
333                option.search_text = text.substr(0, startpos) + '<em>' + text.substr(startpos);
334              }
335              if (results_group != null) {
336                results_group.group_match = true;
337              }
338            } else if ((option.group_array_index != null) && this.results_data[option.group_array_index].search_match) {
339              option.search_match = true;
340            }
341          }
342        }
343      }
344      this.result_clear_highlight();
345      if (results < 1 && searchText.length) {
346        this.update_results_content("");
347        return this.no_results(searchText);
348      } else {
349        this.update_results_content(this.results_option_build());
350        return this.winnow_results_set_highlight();
351      }
352    };
353
354    AbstractChosen.prototype.search_string_match = function(search_string, regex) {
355      var part, parts, _i, _len;
356
357      if (regex.test(search_string)) {
358        return true;
359      } else if (this.enable_split_word_search && (search_string.indexOf(" ") >= 0 || search_string.indexOf("[") === 0)) {
360        parts = search_string.replace(/\[|\]/g, "").split(" ");
361        if (parts.length) {
362          for (_i = 0, _len = parts.length; _i < _len; _i++) {
363            part = parts[_i];
364            if (regex.test(part)) {
365              return true;
366            }
367          }
368        }
369      }
370    };
371
372    AbstractChosen.prototype.choices_count = function() {
373      var option, _i, _len, _ref;
374
375      if (this.selected_option_count != null) {
376        return this.selected_option_count;
377      }
378      this.selected_option_count = 0;
379      _ref = this.form_field.options;
380      for (_i = 0, _len = _ref.length; _i < _len; _i++) {
381        option = _ref[_i];
382        if (option.selected) {
383          this.selected_option_count += 1;
384        }
385      }
386      return this.selected_option_count;
387    };
388
389    AbstractChosen.prototype.choices_click = function(evt) {
390      evt.preventDefault();
391      if (!(this.results_showing || this.is_disabled)) {
392        return this.results_show();
393      }
394    };
395
396    AbstractChosen.prototype.keyup_checker = function(evt) {
397      var stroke, _ref;
398
399      stroke = (_ref = evt.which) != null ? _ref : evt.keyCode;
400      this.search_field_scale();
401      switch (stroke) {
402        case 8:
403          if (this.is_multiple && this.backstroke_length < 1 && this.choices_count() > 0) {
404            return this.keydown_backstroke();
405          } else if (!this.pending_backstroke) {
406            this.result_clear_highlight();
407            return this.results_search();
408          }
409          break;
410        case 13:
411          evt.preventDefault();
412          if (this.results_showing) {
413            return this.result_select(evt);
414          }
415          break;
416        case 27:
417          if (this.results_showing) {
418            this.results_hide();
419          }
420          return true;
421        case 9:
422        case 38:
423        case 40:
424        case 16:
425        case 91:
426        case 17:
427          break;
428        default:
429          return this.results_search();
430      }
431    };
432
433    AbstractChosen.prototype.container_width = function() {
434      if (this.options.width != null) {
435        return this.options.width;
436      } else {
437        return "" + this.form_field.offsetWidth + "px";
438      }
439    };
440
441    AbstractChosen.prototype.include_option_in_results = function(option) {
442      if (this.is_multiple && (!this.display_selected_options && option.selected)) {
443        return false;

519      var container_classes, container_props;
520
521      container_classes = ["chzn-container"];
522      container_classes.push("chzn-container-" + (this.is_multiple ? "multi" : "single"));
523      if (this.inherit_select_classes && this.form_field.className) {
524        container_classes.push(this.form_field.className);
525      }
526      if (this.is_rtl) {
527        container_classes.push("chzn-rtl");
528      }
529      container_props = {
530        'class': container_classes.join(' '),
531        'style': "width: " + (this.container_width()) + ";",
532        'title': this.form_field.title
533      };
534      if (this.form_field.id.length) {
535        container_props.id = this.form_field.id.replace(/[^\w]/g, '_') + "_chzn";
536      }
537      this.container = $("<div />", container_props);
538      if (this.is_multiple) {
539        this.container.html('<ul class="chzn-choices"><li class="search-field"><input type="text" value="' + this.default_text + '" class="default" autocomplete="off" style="width:25px;" /></li></ul><div class="chzn-drop"><ul class="chzn-results"></ul></div>');
540      } else {
541        this.container.html('<a class="chzn-single chzn-default" tabindex="-1"><span>' + this.default_text + '</span><div><b></b></div></a><div class="chzn-drop"><div class="chzn-search"><input type="text" autocomplete="off" /></div><ul class="chzn-results"></ul></div>');
542      }
543      this.form_field_jq.hide().after(this.container);
544      this.dropdown = this.container.find('div.chzn-drop').first();
545      this.search_field = this.container.find('input').first();
546      this.search_results = this.container.find('ul.chzn-results').first();
547      this.search_field_scale();
548      this.search_no_results = this.container.find('li.no-results').first();
549      if (this.is_multiple) {
550        this.search_choices = this.container.find('ul.chzn-choices').first();
551        this.search_container = this.container.find('li.search-field').first();
552      } else {
553        this.search_container = this.container.find('div.chzn-search').first();
554        this.selected_item = this.container.find('.chzn-single').first();
555      }
556      this.results_build();
557      this.set_tab_index();
558      this.set_label_behavior();
559      return this.form_field_jq.trigger("liszt:ready", {
560        chosen: this
561      });
562    };
563
564    Chosen.prototype.register_observers = function() {
565      var _this = this;
566
567      this.container.bind('mousedown.chosen', function(evt) {
568        _this.container_mousedown(evt);
569      });
570      this.container.bind('mouseup.chosen', function(evt) {
571        _this.container_mouseup(evt);
572      });
573      this.container.bind('mouseenter.chosen', function(evt) {
574        _this.mouse_enter(evt);
575      });
576      this.container.bind('mouseleave.chosen', function(evt) {
577        _this.mouse_leave(evt);
578      });
579      this.search_results.bind('mouseup.chosen', function(evt) {
580        _this.search_results_mouseup(evt);
581      });
582      this.search_results.bind('mouseover.chosen', function(evt) {
583        _this.search_results_mouseover(evt);
584      });
585      this.search_results.bind('mouseout.chosen', function(evt) {
586        _this.search_results_mouseout(evt);
587      });
588      this.search_results.bind('mousewheel.chosen DOMMouseScroll.chosen', function(evt) {
589        _this.search_results_mousewheel(evt);
590      });
591      this.form_field_jq.bind("liszt:updated.chosen", function(evt) {
592        _this.results_update_field(evt);
593      });
594      this.form_field_jq.bind("liszt:activate.chosen", function(evt) {
595        _this.activate_field(evt);
596      });
597      this.form_field_jq.bind("liszt:open.chosen", function(evt) {
598        _this.container_mousedown(evt);
599      });
600      this.search_field.bind('blur.chosen', function(evt) {
601        _this.input_blur(evt);
602      });
603      this.search_field.bind('keyup.chosen', function(evt) {
604        _this.keyup_checker(evt);
605      });
606      this.search_field.bind('keydown.chosen', function(evt) {
607        _this.keydown_checker(evt);
608      });
609      this.search_field.bind('focus.chosen', function(evt) {
610        _this.input_focus(evt);
611      });
612      if (this.is_multiple) {
613        return this.search_choices.bind('click.chosen', function(evt) {
614          _this.choices_click(evt);
615        });
616      } else {
617        return this.container.bind('click.chosen', function(evt) {
618          evt.preventDefault();
619        });
620      }
621    };
622
623    Chosen.prototype.destroy = function() {
624      $(document).unbind("click.chosen", this.click_test_action);
625      if (this.search_field[0].tabIndex) {
626        this.form_field_jq[0].tabIndex = this.search_field[0].tabIndex;
627      }
628      this.container.remove();
629      this.form_field_jq.removeData('chosen');
630      return this.form_field_jq.show();
631    };
632
633    Chosen.prototype.search_field_disabled = function() {
634      this.is_disabled = this.form_field_jq[0].disabled;
635      if (this.is_disabled) {
636        this.container.addClass('chzn-disabled');
637        this.search_field[0].disabled = true;
638        if (!this.is_multiple) {
639          this.selected_item.unbind("focus.chosen", this.activate_action);
640        }
641        return this.close_field();
642      } else {
643        this.container.removeClass('chzn-disabled');
644        this.search_field[0].disabled = false;
645        if (!this.is_multiple) {
646          return this.selected_item.bind("focus.chosen", this.activate_action);
647        }
648      }
649    };
650
651    Chosen.prototype.container_mousedown = function(evt) {
652      if (!this.is_disabled) {
653        if (evt && evt.type === "mousedown" && !this.results_showing) {
654          evt.preventDefault();
655        }
656        if (!((evt != null) && ($(evt.target)).hasClass("search-choice-close"))) {
657          if (!this.active_field) {
658            if (this.is_multiple) {
659              this.search_field.val("");
660            }
661            $(document).bind('click.chosen', this.click_test_action);
662            this.results_show();
663          } else if (!this.is_multiple && evt && (($(evt.target)[0] === this.selected_item[0]) || $(evt.target).parents("a.chzn-single").length)) {
664            evt.preventDefault();
665            this.results_toggle();
666          }
667          return this.activate_field();
668        }
669      }
670    };
671
672    Chosen.prototype.container_mouseup = function(evt) {
673      if (evt.target.nodeName === "ABBR" && !this.is_disabled) {
674        return this.results_reset(evt);
675      }
676    };
677
678    Chosen.prototype.search_results_mousewheel = function(evt) {
679      var delta, _ref1, _ref2;
680
681      delta = -((_ref1 = evt.originalEvent) != null ? _ref1.wheelDelta : void 0) || ((_ref2 = evt.originialEvent) != null ? _ref2.detail : void 0);
682      if (delta != null) {
683        evt.preventDefault();
684        if (evt.type === 'DOMMouseScroll') {
685          delta = delta * 40;
686        }
687        return this.search_results.scrollTop(delta + this.search_results.scrollTop());
688      }
689    };
690
691    Chosen.prototype.blur_test = function(evt) {
692      if (!this.active_field && this.container.hasClass("chzn-container-active")) {
693        return this.close_field();
694      }
695    };
696
697    Chosen.prototype.close_field = function() {
698      $(document).unbind("click.chosen", this.click_test_action);
699      this.active_field = false;
700      this.results_hide();
701      this.container.removeClass("chzn-container-active");
702      this.clear_backstroke();
703      this.show_search_field_default();
704      return this.search_field_scale();
705    };
706
707    Chosen.prototype.activate_field = function() {
708      this.container.addClass("chzn-container-active");
709      this.active_field = true;
710      this.search_field.val(this.search_field.val());
711      return this.search_field.focus();
712    };
713
714    Chosen.prototype.test_active_click = function(evt) {
715      if (this.container.is($(evt.target).closest('.chzn-container'))) {
716        return this.active_field = true;
717      } else {
718        return this.close_field();
719      }
720    };
721
722    Chosen.prototype.results_build = function() {
723      this.parsing = true;
724      this.selected_option_count = null;
725      this.results_data = SelectParser.select_to_array(this.form_field);
726      if (this.is_multiple) {
727        this.search_choices.find("li.search-choice").remove();
728      } else if (!this.is_multiple) {
729        this.single_set_selected_text();
730        if (this.disable_search || this.form_field.options.length <= this.disable_search_threshold) {
731          this.search_field[0].readOnly = true;
732          this.container.addClass("chzn-container-single-nosearch");
733        } else {
734          this.search_field[0].readOnly = false;
735          this.container.removeClass("chzn-container-single-nosearch");
736        }
737      }
738      this.update_results_content(this.results_option_build({
739        first: true
740      }));
741      this.search_field_disabled();
742      this.show_search_field_default();
743      this.search_field_scale();
744      return this.parsing = false;
745    };
746
747    Chosen.prototype.result_do_highlight = function(el) {
748      var high_bottom, high_top, maxHeight, visible_bottom, visible_top;
749
750      if (el.length) {
751        this.result_clear_highlight();
752        this.result_highlight = el;
753        this.result_highlight.addClass("highlighted");
754        maxHeight = parseInt(this.search_results.css("maxHeight"), 10);
755        visible_top = this.search_results.scrollTop();
756        visible_bottom = maxHeight + visible_top;
757        high_top = this.result_highlight.position().top + this.search_results.scrollTop();
758        high_bottom = high_top + this.result_highlight.outerHeight();
759        if (high_bottom >= visible_bottom) {
760          return this.search_results.scrollTop((high_bottom - maxHeight) > 0 ? high_bottom - maxHeight : 0);
761        } else if (high_top < visible_top) {
762          return this.search_results.scrollTop(high_top);
763        }
764      }
765    };
766
767    Chosen.prototype.result_clear_highlight = function() {
768      if (this.result_highlight) {
769        this.result_highlight.removeClass("highlighted");
770      }
771      return this.result_highlight = null;
772    };
773
774    Chosen.prototype.results_show = function() {
775      if (this.is_multiple && this.max_selected_options <= this.choices_count()) {
776        this.form_field_jq.trigger("liszt:maxselected", {
777          chosen: this
778        });
779        return false;
780      }
781      this.container.addClass("chzn-with-drop");
782      this.form_field_jq.trigger("liszt:showing_dropdown", {
783        chosen: this
784      });
785      this.results_showing = true;
786      this.search_field.focus();
787      this.search_field.val(this.search_field.val());
788      return this.winnow_results();
789    };
790
791    Chosen.prototype.update_results_content = function(content) {
792      return this.search_results.html(content);
793    };
794
795    Chosen.prototype.results_hide = function() {
796      if (this.results_showing) {
797        this.result_clear_highlight();
798        this.container.removeClass("chzn-with-drop");
799        this.form_field_jq.trigger("liszt:hiding_dropdown", {
800          chosen: this
801        });
802      }
803      return this.results_showing = false;
804    };
805
806    Chosen.prototype.set_tab_index = function(el) {
807      var ti;
808
809      if (this.form_field.tabIndex) {
810        ti = this.form_field.tabIndex;
811        this.form_field.tabIndex = -1;
812        return this.search_field[0].tabIndex = ti;
813      }
814    };
815
816    Chosen.prototype.set_label_behavior = function() {
817      var _this = this;
818
819      this.form_field_label = this.form_field_jq.parents("label");
820      if (!this.form_field_label.length && this.form_field.id.length) {
821        this.form_field_label = $("label[for='" + this.form_field.id + "']");
822      }
823      if (this.form_field_label.length > 0) {
824        return this.form_field_label.bind('click.chosen', function(evt) {
825          if (_this.is_multiple) {
826            return _this.container_mousedown(evt);
827          } else {
828            return _this.activate_field();
829          }
830        });
831      }
832    };
833
834    Chosen.prototype.show_search_field_default = function() {
835      if (this.is_multiple && this.choices_count() < 1 && !this.active_field) {
836        this.search_field.val(this.default_text);
837        return this.search_field.addClass("default");
838      } else {
839        this.search_field.val("");
840        return this.search_field.removeClass("default");
841      }
842    };
843
844    Chosen.prototype.search_results_mouseup = function(evt) {
845      var target;
846
847      target = $(evt.target).hasClass("active-result") ? $(evt.target) : $(evt.target).parents(".active-result").first();
848      if (target.length) {
849        this.result_highlight = target;
850        this.result_select(evt);
851        return this.search_field.focus();
852      }
853    };
854
855    Chosen.prototype.search_results_mouseover = function(evt) {
856      var target;
857
858      target = $(evt.target).hasClass("active-result") ? $(evt.target) : $(evt.target).parents(".active-result").first();
859      if (target) {
860        return this.result_do_highlight(target);
861      }
862    };
863
864    Chosen.prototype.search_results_mouseout = function(evt) {
865      if ($(evt.target).hasClass("active-result" || $(evt.target).parents('.active-result').first())) {
866        return this.result_clear_highlight();
867      }
868    };
869
870    Chosen.prototype.choice_build = function(item) {
871      var choice, close_link,
872        _this = this;
873
874      choice = $('<li />', {
875        "class": "search-choice"
876      }).html("<span>" + item.html + "</span>");
877      if (item.disabled) {
878        choice.addClass('search-choice-disabled');
879      } else {
880        close_link = $('<a />', {
881          "class": 'search-choice-close',
882          'data-option-array-index': item.array_index
883        });
884        close_link.bind('click.chosen', function(evt) {
885          return _this.choice_destroy_link_click(evt);
886        });
887        choice.append(close_link);
888      }
889      return this.search_container.before(choice);
890    };
891
892    Chosen.prototype.choice_destroy_link_click = function(evt) {
893      evt.preventDefault();
894      evt.stopPropagation();
895      if (!this.is_disabled) {
896        return this.choice_destroy($(evt.target));
897      }
898    };
899
900    Chosen.prototype.choice_destroy = function(link) {
901      if (this.result_deselect(link[0].getAttribute("data-option-array-index"))) {
902        this.show_search_field_default();
903        if (this.is_multiple && this.choices_count() > 0 && this.search_field.val().length < 1) {
904          this.results_hide();
905        }
906        link.parents('li').first().remove();
907        return this.search_field_scale();
908      }
909    };
910
911    Chosen.prototype.results_reset = function() {
912      this.form_field.options[0].selected = true;
913      this.selected_option_count = null;
914      this.single_set_selected_text();
915      this.show_search_field_default();
916      this.results_reset_cleanup();
917      this.form_field_jq.trigger("change");
918      if (this.active_field) {
919        return this.results_hide();
920      }
921    };
922
923    Chosen.prototype.results_reset_cleanup = function() {
924      this.current_selectedIndex = this.form_field.selectedIndex;
925      return this.selected_item.find("abbr").remove();
926    };
927
928    Chosen.prototype.result_select = function(evt) {
929      var high, item, selected_index;
930
931      if (this.result_highlight) {
932        high = this.result_highlight;
933        this.result_clear_highlight();
934        if (this.is_multiple && this.max_selected_options <= this.choices_count()) {
935          this.form_field_jq.trigger("liszt:maxselected", {
936            chosen: this
937          });
938          return false;
939        }
940        if (this.is_multiple) {
941          high.removeClass("active-result");
942        } else {
943          if (this.result_single_selected) {
944            this.result_single_selected.removeClass("result-selected");
945            selected_index = this.result_single_selected[0].getAttribute('data-option-array-index');
946            this.results_data[selected_index].selected = false;
947          }
948          this.result_single_selected = high;
949        }
950        high.addClass("result-selected");
951        item = this.results_data[high[0].getAttribute("data-option-array-index")];
952        item.selected = true;
953        this.form_field.options[item.options_index].selected = true;
954        this.selected_option_count = null;
955        if (this.is_multiple) {
956          this.choice_build(item);
957        } else {
958          this.single_set_selected_text(item.text);
959        }
960        if (!((evt.metaKey || evt.ctrlKey) && this.is_multiple)) {
961          this.results_hide();
962        }
963        this.search_field.val("");
964        if (this.is_multiple || this.form_field.selectedIndex !== this.current_selectedIndex) {
965          this.form_field_jq.trigger("change", {
966            'selected': this.form_field.options[item.options_index].value
967          });
968        }
969        this.current_selectedIndex = this.form_field.selectedIndex;
970        return this.search_field_scale();
971      }
972    };
973
974    Chosen.prototype.single_set_selected_text = function(text) {
975      if (text == null) {
976        text = this.default_text;
977      }
978      if (text === this.default_text) {
979        this.selected_item.addClass("chzn-default");
980      } else {
981        this.single_deselect_control_build();
982        this.selected_item.removeClass("chzn-default");
983      }
984      return this.selected_item.find("span").text(text);
985    };
986
987    Chosen.prototype.result_deselect = function(pos) {
988      var result_data;
989
990      result_data = this.results_data[pos];
991      if (!this.form_field.options[result_data.options_index].disabled) {
992        result_data.selected = false;
993        this.form_field.options[result_data.options_index].selected = false;
994        this.selected_option_count = null;
995        this.result_clear_highlight();
996        if (this.results_showing) {
997          this.winnow_results();
998        }
999        this.form_field_jq.trigger("change", {
1000          deselected: this.form_field.options[result_data.options_index].value
1001        });
1002        this.search_field_scale();
1003        return true;
1004      } else {
1005        return false;
1006      }
1007    };
1008
1009    Chosen.prototype.single_deselect_control_build = function() {
1010      if (!this.allow_single_deselect) {
1011        return;
1012      }
1013      if (!this.selected_item.find("abbr").length) {
1014        this.selected_item.find("span").first().after("<abbr class=\"search-choice-close\"></abbr>");
1015      }
1016      return this.selected_item.addClass("chzn-single-with-deselect");
1017    };
1018
1019    Chosen.prototype.get_search_text = function() {
1020      if (this.search_field.val() === this.default_text) {
1021        return "";
1022      } else {
1023        return $('<div/>').text($.trim(this.search_field.val())).html();
1024      }
1025    };
1026
1027    Chosen.prototype.winnow_results_set_highlight = function() {
1028      var do_high, selected_results;
1029
1030      selected_results = !this.is_multiple ? this.search_results.find(".result-selected.active-result") : [];
1031      do_high = selected_results.length ? selected_results.first() : this.search_results.find(".active-result").first();
1032      if (do_high != null) {
1033        return this.result_do_highlight(do_high);
1034      }
1035    };
1036
1037    Chosen.prototype.no_results = function(terms) {
1038      var no_results_html;
1039
1040      no_results_html = $('<li class="no-results">' + this.results_none_found + ' "<span></span>"</li>');
1041      no_results_html.find("span").first().html(terms);
1042      return this.search_results.append(no_results_html);
1043    };
1044
1045    Chosen.prototype.no_results_clear = function() {
1046      return this.search_results.find(".no-results").remove();
1047    };
1048
1049    Chosen.prototype.keydown_arrow = function() {
1050      var next_sib;
1051
1052      if (this.results_showing && this.result_highlight) {
1053        next_sib = this.result_highlight.nextAll("li.active-result").first();
1054        if (next_sib) {
1055          return this.result_do_highlight(next_sib);
1056        }
1057      } else {
1058        return this.results_show();
1059      }
1060    };
1061
1062    Chosen.prototype.keyup_arrow = function() {
1063      var prev_sibs;
1064
1065      if (!this.results_showing && !this.is_multiple) {
1066        return this.results_show();
1067      } else if (this.result_highlight) {
1068        prev_sibs = this.result_highlight.prevAll("li.active-result");
1069        if (prev_sibs.length) {
1070          return this.result_do_highlight(prev_sibs.first());
1071        } else {
1072          if (this.choices_count() > 0) {
1073            this.results_hide();
1074          }
1075          return this.result_clear_highlight();
1076        }
1077      }
1078    };
1079
1080    Chosen.prototype.keydown_backstroke = function() {
1081      var next_available_destroy;
1082
1083      if (this.pending_backstroke) {
1084        this.choice_destroy(this.pending_backstroke.find("a").first());
1085        return this.clear_backstroke();
1086      } else {
1087        next_available_destroy = this.search_container.siblings("li.search-choice").last();
1088        if (next_available_destroy.length && !next_available_destroy.hasClass("search-choice-disabled")) {
1089          this.pending_backstroke = next_available_destroy;
1090          if (this.single_backstroke_delete) {
1091            return this.keydown_backstroke();
1092          } else {
1093            return this.pending_backstroke.addClass("search-choice-focus");
1094          }
1095        }
1096      }
1097    };
1098
1099    Chosen.prototype.clear_backstroke = function() {
1100      if (this.pending_backstroke) {
1101        this.pending_backstroke.removeClass("search-choice-focus");
1102      }
1103      return this.pending_backstroke = null;
1104    };
1105
1106    Chosen.prototype.keydown_checker = function(evt) {
1107      var stroke, _ref1;
1108
1109      stroke = (_ref1 = evt.which) != null ? _ref1 : evt.keyCode;
1110      this.search_field_scale();
1111      if (stroke !== 8 && this.pending_backstroke) {
1112        this.clear_backstroke();
1113      }
1114      switch (stroke) {
1115        case 8:
1116          this.backstroke_length = this.search_field.val().length;
1117          break;
1118        case 9:
1119          if (this.results_showing && !this.is_multiple) {
1120            this.result_select(evt);
1121          }
1122          this.mouse_on_container = false;
1123          break;
1124        case 13:
1125          evt.preventDefault();
1126          break;
1127        case 38:
1128          evt.preventDefault();
1129          this.keyup_arrow();
1130          break;
1131        case 40:
1132          evt.preventDefault();
1133          this.keydown_arrow();
1134          break;
1135      }
1136    };
1137
1138    Chosen.prototype.search_field_scale = function() {
1139      var div, f_width, h, style, style_block, styles, w, _i, _len;
1140
1141      if (this.is_multiple) {
1142        h = 0;
1143        w = 0;
1144        style_block = "position:absolute; left: -1000px; top: -1000px; display:none;";
1145        styles = ['font-size', 'font-style', 'font-weight', 'font-family', 'line-height', 'text-transform', 'letter-spacing'];
1146        for (_i = 0, _len = styles.length; _i < _len; _i++) {
1147          style = styles[_i];
1148          style_block += style + ":" + this.search_field.css(style) + ";";
1149        }
1150        div = $('<div />', {
1151          'style': style_block
1152        });
1153        div.text(this.search_field.val());
1154        $('body').append(div);
1155        w = div.width() + 25;
1156        div.remove();
1157        f_width = this.container.outerWidth();
1158        if (w > f_width - 10) {
1159          w = f_width - 10;
1160        }
1161        return this.search_field.css({
1162          'width': w + 'px'
1163        });
1164      }
1165    };
1166
1167    return Chosen;
1168
1169  })(AbstractChosen);
1170
1171}).call(this);