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   1  // Chosen, a Select Box Enhancer for jQuery and Protoype
   2  // by Patrick Filler for Harvest, http://getharvest.com
   3  //
   4  // Version 0.9.14
   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 `cake build`, do not edit it by hand.
  10  (function() {
  11    var SelectParser;
  12  
  13    SelectParser = (function() {
  14  
  15      function SelectParser() {
  16        this.options_index = 0;
  17        this.parsed = [];
  18      }
  19  
  20      SelectParser.prototype.add_node = function(child) {
  21        if (child.nodeName.toUpperCase() === "OPTGROUP") {
  22          return this.add_group(child);
  23        } else {
  24          return this.add_option(child);
  25        }
  26      };
  27  
  28      SelectParser.prototype.add_group = function(group) {
  29        var group_position, option, _i, _len, _ref, _results;
  30        group_position = this.parsed.length;
  31        this.parsed.push({
  32          array_index: group_position,
  33          group: true,
  34          label: group.label,
  35          children: 0,
  36          disabled: group.disabled
  37        });
  38        _ref = group.childNodes;
  39        _results = [];
  40        for (_i = 0, _len = _ref.length; _i < _len; _i++) {
  41          option = _ref[_i];
  42          _results.push(this.add_option(option, group_position, group.disabled));
  43        }
  44        return _results;
  45      };
  46  
  47      SelectParser.prototype.add_option = function(option, group_position, group_disabled) {
  48        if (option.nodeName.toUpperCase() === "OPTION") {
  49          if (option.text !== "") {
  50            if (group_position != null) {
  51              this.parsed[group_position].children += 1;
  52            }
  53            this.parsed.push({
  54              array_index: this.parsed.length,
  55              options_index: this.options_index,
  56              value: option.value,
  57              text: option.text,
  58              html: option.innerHTML,
  59              selected: option.selected,
  60              disabled: group_disabled === true ? group_disabled : option.disabled,
  61              group_array_index: group_position,
  62              classes: option.className,
  63              style: option.style.cssText
  64            });
  65          } else {
  66            this.parsed.push({
  67              array_index: this.parsed.length,
  68              options_index: this.options_index,
  69              empty: true
  70            });
  71          }
  72          return this.options_index += 1;
  73        }
  74      };
  75  
  76      return SelectParser;
  77  
  78    })();
  79  
  80    SelectParser.select_to_array = function(select) {
  81      var child, parser, _i, _len, _ref;
  82      parser = new SelectParser();
  83      _ref = select.childNodes;
  84      for (_i = 0, _len = _ref.length; _i < _len; _i++) {
  85        child = _ref[_i];
  86        parser.add_node(child);
  87      }
  88      return parser.parsed;
  89    };
  90  
  91    this.SelectParser = SelectParser;
  92  
  93  }).call(this);
  94  
  95  /*
  96  Chosen source: generate output using 'cake build'
  97  Copyright (c) 2011 by Harvest
  98  */
  99  
 100  
 101  (function() {
 102    var AbstractChosen, root;
 103  
 104    root = this;
 105  
 106    AbstractChosen = (function() {
 107  
 108      function AbstractChosen(form_field, options) {
 109        this.form_field = form_field;
 110        this.options = options != null ? options : {};
 111        if (!AbstractChosen.browser_is_supported()) {
 112          return;
 113        }
 114        this.is_multiple = this.form_field.multiple;
 115        this.set_default_text();
 116        this.set_default_values();
 117        this.setup();
 118        this.set_up_html();
 119        this.register_observers();
 120        this.finish_setup();
 121      }
 122  
 123      AbstractChosen.prototype.set_default_values = function() {
 124        var _this = this;
 125        this.click_test_action = function(evt) {
 126          return _this.test_active_click(evt);
 127        };
 128        this.activate_action = function(evt) {
 129          return _this.activate_field(evt);
 130        };
 131        this.active_field = false;
 132        this.mouse_on_container = false;
 133        this.results_showing = false;
 134        this.result_highlighted = null;
 135        this.result_single_selected = null;
 136        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;
 137        this.disable_search_threshold = this.options.disable_search_threshold || 0;
 138        this.disable_search = this.options.disable_search || false;
 139        this.enable_split_word_search = this.options.enable_split_word_search != null ? this.options.enable_split_word_search : true;
 140        this.search_contains = this.options.search_contains || false;
 141        this.choices = 0;
 142        this.single_backstroke_delete = this.options.single_backstroke_delete || false;
 143        this.max_selected_options = this.options.max_selected_options || Infinity;
 144        return this.inherit_select_classes = this.options.inherit_select_classes || false;
 145      };
 146  
 147      AbstractChosen.prototype.set_default_text = function() {
 148        if (this.form_field.getAttribute("data-placeholder")) {
 149          this.default_text = this.form_field.getAttribute("data-placeholder");
 150        } else if (this.is_multiple) {
 151          this.default_text = this.options.placeholder_text_multiple || this.options.placeholder_text || AbstractChosen.default_multiple_text;
 152        } else {
 153          this.default_text = this.options.placeholder_text_single || this.options.placeholder_text || AbstractChosen.default_single_text;
 154        }
 155        return this.results_none_found = this.form_field.getAttribute("data-no_results_text") || this.options.no_results_text || AbstractChosen.default_no_result_text;
 156      };
 157  
 158      AbstractChosen.prototype.mouse_enter = function() {
 159        return this.mouse_on_container = true;
 160      };
 161  
 162      AbstractChosen.prototype.mouse_leave = function() {
 163        return this.mouse_on_container = false;
 164      };
 165  
 166      AbstractChosen.prototype.input_focus = function(evt) {
 167        var _this = this;
 168        if (this.is_multiple) {
 169          if (!this.active_field) {
 170            return setTimeout((function() {
 171              return _this.container_mousedown();
 172            }), 50);
 173          }
 174        } else {
 175          if (!this.active_field) {
 176            return this.activate_field();
 177          }
 178        }
 179      };
 180  
 181      AbstractChosen.prototype.input_blur = function(evt) {
 182        var _this = this;
 183        if (!this.mouse_on_container) {
 184          this.active_field = false;
 185          return setTimeout((function() {
 186            return _this.blur_test();
 187          }), 100);
 188        }
 189      };
 190  
 191      AbstractChosen.prototype.result_add_option = function(option) {
 192        var classes, style;
 193        if (!option.disabled) {
 194          option.dom_id = this.container_id + "_o_" + option.array_index;
 195          classes = option.selected && this.is_multiple ? [] : ["active-result"];
 196          if (option.selected) {
 197            classes.push("result-selected");
 198          }
 199          if (option.group_array_index != null) {
 200            classes.push("group-option");
 201          }
 202          if (option.classes !== "") {
 203            classes.push(option.classes);
 204          }
 205          style = option.style.cssText !== "" ? " style=\"" + option.style + "\"" : "";
 206          return '<li id="' + option.dom_id + '" class="' + classes.join(' ') + '"' + style + '>' + option.html + '</li>';
 207        } else {
 208          return "";
 209        }
 210      };
 211  
 212      AbstractChosen.prototype.results_update_field = function() {
 213        this.set_default_text();
 214        if (!this.is_multiple) {
 215          this.results_reset_cleanup();
 216        }
 217        this.result_clear_highlight();
 218        this.result_single_selected = null;
 219        return this.results_build();
 220      };
 221  
 222      AbstractChosen.prototype.results_toggle = function() {
 223        if (this.results_showing) {
 224          return this.results_hide();
 225        } else {
 226          return this.results_show();
 227        }
 228      };
 229  
 230      AbstractChosen.prototype.results_search = function(evt) {
 231        if (this.results_showing) {
 232          return this.winnow_results();
 233        } else {
 234          return this.results_show();
 235        }
 236      };
 237  
 238      AbstractChosen.prototype.choices_click = function(evt) {
 239        evt.preventDefault();
 240        if (!this.results_showing) {
 241          return this.results_show();
 242        }
 243      };
 244  
 245      AbstractChosen.prototype.keyup_checker = function(evt) {
 246        var stroke, _ref;
 247        stroke = (_ref = evt.which) != null ? _ref : evt.keyCode;
 248        this.search_field_scale();
 249        switch (stroke) {
 250          case 8:
 251            if (this.is_multiple && this.backstroke_length < 1 && this.choices > 0) {
 252              return this.keydown_backstroke();
 253            } else if (!this.pending_backstroke) {
 254              this.result_clear_highlight();
 255              return this.results_search();
 256            }
 257            break;
 258          case 13:
 259            evt.preventDefault();
 260            if (this.results_showing) {
 261              return this.result_select(evt);
 262            }
 263            break;
 264          case 27:
 265            if (this.results_showing) {
 266              this.results_hide();
 267            }
 268            return true;
 269          case 9:
 270          case 38:
 271          case 40:
 272          case 16:
 273          case 91:
 274          case 17:
 275            break;
 276          default:
 277            return this.results_search();
 278        }
 279      };
 280  
 281      AbstractChosen.prototype.generate_field_id = function() {
 282        var new_id;
 283        new_id = this.generate_random_id();
 284        this.form_field.id = new_id;
 285        return new_id;
 286      };
 287  
 288      AbstractChosen.prototype.generate_random_char = function() {
 289        var chars, newchar, rand;
 290        chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 291        rand = Math.floor(Math.random() * chars.length);
 292        return newchar = chars.substring(rand, rand + 1);
 293      };
 294  
 295      AbstractChosen.prototype.container_width = function() {
 296        var width;
 297        if (this.options.width != null) {
 298          return this.options.width;
 299        }
 300        width = window.getComputedStyle != null ? parseFloat(window.getComputedStyle(this.form_field).getPropertyValue('width')) : (typeof jQuery !== "undefined" && jQuery !== null) && (this.form_field_jq != null) ? this.form_field_jq.outerWidth() : this.form_field.getWidth();
 301        return width + "px";
 302      };
 303  
 304      AbstractChosen.browser_is_supported = function() {
 305        var _ref;
 306        if (window.navigator.appName === "Microsoft Internet Explorer") {
 307          return (null !== (_ref = document.documentMode) && _ref >= 8);
 308        }
 309        return true;
 310      };
 311  
 312      AbstractChosen.default_multiple_text = "Select Some Options";
 313  
 314      AbstractChosen.default_single_text = "Select an Option";
 315  
 316      AbstractChosen.default_no_result_text = "No results match";
 317  
 318      return AbstractChosen;
 319  
 320    })();
 321  
 322    root.AbstractChosen = AbstractChosen;
 323  
 324  }).call(this);
 325  
 326  /*
 327  Chosen source: generate output using 'cake build'
 328  Copyright (c) 2011 by Harvest
 329  */
 330  
 331  
 332  (function() {
 333    var $, Chosen, root,
 334      __hasProp = {}.hasOwnProperty,
 335      __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; };
 336  
 337    root = this;
 338  
 339    $ = jQuery;
 340  
 341    $.fn.extend({
 342      chosen: function(options) {
 343        if (!AbstractChosen.browser_is_supported()) {
 344          return this;
 345        }
 346        return this.each(function(input_field) {
 347          var $this;
 348          $this = $(this);
 349          if (!$this.hasClass("chzn-done")) {
 350            return $this.data('chosen', new Chosen(this, options));
 351          }
 352        });
 353      }
 354    });
 355  
 356    Chosen = (function(_super) {
 357  
 358      __extends(Chosen, _super);
 359  
 360      function Chosen() {
 361        return Chosen.__super__.constructor.apply(this, arguments);
 362      }
 363  
 364      Chosen.prototype.setup = function() {
 365        this.form_field_jq = $(this.form_field);
 366        this.current_selectedIndex = this.form_field.selectedIndex;
 367        return this.is_rtl = this.form_field_jq.hasClass("chzn-rtl");
 368      };
 369  
 370      Chosen.prototype.finish_setup = function() {
 371        return this.form_field_jq.addClass("chzn-done");
 372      };
 373  
 374      Chosen.prototype.set_up_html = function() {
 375        var container_classes, container_props;
 376        this.container_id = this.form_field.id.length ? this.form_field.id.replace(/[^\w]/g, '_') : this.generate_field_id();
 377        this.container_id += "_chzn";
 378        container_classes = ["chzn-container"];
 379        container_classes.push("chzn-container-" + (this.is_multiple ? "multi" : "single"));
 380        if (this.inherit_select_classes && this.form_field.className) {
 381          container_classes.push(this.form_field.className);
 382        }
 383        if (this.is_rtl) {
 384          container_classes.push("chzn-rtl");
 385        }
 386        container_props = {
 387          'id': this.container_id,
 388          'class': container_classes.join(' '),
 389          'style': "width: " + (this.container_width()) + ";",
 390          'title': this.form_field.title
 391        };
 392        this.container = $("<div />", container_props);
 393        if (this.is_multiple) {
 394          this.container.html('<ul class="chzn-choices"><li class="search-field"><input type="text" value="' + this.default_text + '" class="default" autocomplete="off" style="width:auto;" /></li></ul><div class="chzn-drop"><ul class="chzn-results"></ul></div>');
 395        } else {
 396          this.container.html('<a href="javascript:void(0)" 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>');
 397        }
 398        this.form_field_jq.hide().after(this.container);
 399        this.dropdown = this.container.find('div.chzn-drop').first();
 400        this.search_field = this.container.find('input').first();
 401        this.search_results = this.container.find('ul.chzn-results').first();
 402        this.search_field_scale();
 403        this.search_no_results = this.container.find('li.no-results').first();
 404        if (this.is_multiple) {
 405          this.search_choices = this.container.find('ul.chzn-choices').first();
 406          this.search_container = this.container.find('li.search-field').first();
 407        } else {
 408          this.search_container = this.container.find('div.chzn-search').first();
 409          this.selected_item = this.container.find('.chzn-single').first();
 410        }
 411        this.results_build();
 412        this.set_tab_index();
 413        this.set_label_behavior();
 414        return this.form_field_jq.trigger("liszt:ready", {
 415          chosen: this
 416        });
 417      };
 418  
 419      Chosen.prototype.register_observers = function() {
 420        var _this = this;
 421        this.container.mousedown(function(evt) {
 422          _this.container_mousedown(evt);
 423        });
 424        this.container.mouseup(function(evt) {
 425          _this.container_mouseup(evt);
 426        });
 427        this.container.mouseenter(function(evt) {
 428          _this.mouse_enter(evt);
 429        });
 430        this.container.mouseleave(function(evt) {
 431          _this.mouse_leave(evt);
 432        });
 433        this.search_results.mouseup(function(evt) {
 434          _this.search_results_mouseup(evt);
 435        });
 436        this.search_results.mouseover(function(evt) {
 437          _this.search_results_mouseover(evt);
 438        });
 439        this.search_results.mouseout(function(evt) {
 440          _this.search_results_mouseout(evt);
 441        });
 442        this.search_results.bind('mousewheel DOMMouseScroll', function(evt) {
 443          _this.search_results_mousewheel(evt);
 444        });
 445        this.form_field_jq.bind("liszt:updated", function(evt) {
 446          _this.results_update_field(evt);
 447        });
 448        this.form_field_jq.bind("liszt:activate", function(evt) {
 449          _this.activate_field(evt);
 450        });
 451        this.form_field_jq.bind("liszt:open", function(evt) {
 452          _this.container_mousedown(evt);
 453        });
 454        this.search_field.blur(function(evt) {
 455          _this.input_blur(evt);
 456        });
 457        this.search_field.keyup(function(evt) {
 458          _this.keyup_checker(evt);
 459        });
 460        this.search_field.keydown(function(evt) {
 461          _this.keydown_checker(evt);
 462        });
 463        this.search_field.focus(function(evt) {
 464          _this.input_focus(evt);
 465        });
 466        if (this.is_multiple) {
 467          return this.search_choices.click(function(evt) {
 468            _this.choices_click(evt);
 469          });
 470        } else {
 471          return this.container.click(function(evt) {
 472            evt.preventDefault();
 473          });
 474        }
 475      };
 476  
 477      Chosen.prototype.search_field_disabled = function() {
 478        this.is_disabled = this.form_field_jq[0].disabled;
 479        if (this.is_disabled) {
 480          this.container.addClass('chzn-disabled');
 481          this.search_field[0].disabled = true;
 482          if (!this.is_multiple) {
 483            this.selected_item.unbind("focus", this.activate_action);
 484          }
 485          return this.close_field();
 486        } else {
 487          this.container.removeClass('chzn-disabled');
 488          this.search_field[0].disabled = false;
 489          if (!this.is_multiple) {
 490            return this.selected_item.bind("focus", this.activate_action);
 491          }
 492        }
 493      };
 494  
 495      Chosen.prototype.container_mousedown = function(evt) {
 496        if (!this.is_disabled) {
 497          if (evt && evt.type === "mousedown" && !this.results_showing) {
 498            evt.preventDefault();
 499          }
 500          if (!((evt != null) && ($(evt.target)).hasClass("search-choice-close"))) {
 501            if (!this.active_field) {
 502              if (this.is_multiple) {
 503                this.search_field.val("");
 504              }
 505              $(document).click(this.click_test_action);
 506              this.results_show();
 507            } else if (!this.is_multiple && evt && (($(evt.target)[0] === this.selected_item[0]) || $(evt.target).parents("a.chzn-single").length)) {
 508              evt.preventDefault();
 509              this.results_toggle();
 510            }
 511            return this.activate_field();
 512          }
 513        }
 514      };
 515  
 516      Chosen.prototype.container_mouseup = function(evt) {
 517        if (evt.target.nodeName === "ABBR" && !this.is_disabled) {
 518          return this.results_reset(evt);
 519        }
 520      };
 521  
 522      Chosen.prototype.search_results_mousewheel = function(evt) {
 523        var delta, _ref, _ref1;
 524        delta = -((_ref = evt.originalEvent) != null ? _ref.wheelDelta : void 0) || ((_ref1 = evt.originialEvent) != null ? _ref1.detail : void 0);
 525        if (delta != null) {
 526          evt.preventDefault();
 527          if (evt.type === 'DOMMouseScroll') {
 528            delta = delta * 40;
 529          }
 530          return this.search_results.scrollTop(delta + this.search_results.scrollTop());
 531        }
 532      };
 533  
 534      Chosen.prototype.blur_test = function(evt) {
 535        if (!this.active_field && this.container.hasClass("chzn-container-active")) {
 536          return this.close_field();
 537        }
 538      };
 539  
 540      Chosen.prototype.close_field = function() {
 541        $(document).unbind("click", this.click_test_action);
 542        this.active_field = false;
 543        this.results_hide();
 544        this.container.removeClass("chzn-container-active");
 545        this.winnow_results_clear();
 546        this.clear_backstroke();
 547        this.show_search_field_default();
 548        return this.search_field_scale();
 549      };
 550  
 551      Chosen.prototype.activate_field = function() {
 552        this.container.addClass("chzn-container-active");
 553        this.active_field = true;
 554        this.search_field.val(this.search_field.val());
 555        return this.search_field.focus();
 556      };
 557  
 558      Chosen.prototype.test_active_click = function(evt) {
 559        if ($(evt.target).parents('#' + this.container_id).length) {
 560          return this.active_field = true;
 561        } else {
 562          return this.close_field();
 563        }
 564      };
 565  
 566      Chosen.prototype.results_build = function() {
 567        var content, data, _i, _len, _ref;
 568        this.parsing = true;
 569        this.results_data = root.SelectParser.select_to_array(this.form_field);
 570        if (this.is_multiple && this.choices > 0) {
 571          this.search_choices.find("li.search-choice").remove();
 572          this.choices = 0;
 573        } else if (!this.is_multiple) {
 574          this.selected_item.addClass("chzn-default").find("span").text(this.default_text);
 575          if (this.disable_search || this.form_field.options.length <= this.disable_search_threshold) {
 576            this.container.addClass("chzn-container-single-nosearch");
 577          } else {
 578            this.container.removeClass("chzn-container-single-nosearch");
 579          }
 580        }
 581        content = '';
 582        _ref = this.results_data;
 583        for (_i = 0, _len = _ref.length; _i < _len; _i++) {
 584          data = _ref[_i];
 585          if (data.group) {
 586            content += this.result_add_group(data);
 587          } else if (!data.empty) {
 588            content += this.result_add_option(data);
 589            if (data.selected && this.is_multiple) {
 590              this.choice_build(data);
 591            } else if (data.selected && !this.is_multiple) {
 592              this.selected_item.removeClass("chzn-default").find("span").text(data.text);
 593              if (this.allow_single_deselect) {
 594                this.single_deselect_control_build();
 595              }
 596            }
 597          }
 598        }
 599        this.search_field_disabled();
 600        this.show_search_field_default();
 601        this.search_field_scale();
 602        this.search_results.html(content);
 603        return this.parsing = false;
 604      };
 605  
 606      Chosen.prototype.result_add_group = function(group) {
 607        if (!group.disabled) {
 608          group.dom_id = this.container_id + "_g_" + group.array_index;
 609          return '<li id="' + group.dom_id + '" class="group-result">' + $("<div />").text(group.label).html() + '</li>';
 610        } else {
 611          return "";
 612        }
 613      };
 614  
 615      Chosen.prototype.result_do_highlight = function(el) {
 616        var high_bottom, high_top, maxHeight, visible_bottom, visible_top;
 617        if (el.length) {
 618          this.result_clear_highlight();
 619          this.result_highlight = el;
 620          this.result_highlight.addClass("highlighted");
 621          maxHeight = parseInt(this.search_results.css("maxHeight"), 10);
 622          visible_top = this.search_results.scrollTop();
 623          visible_bottom = maxHeight + visible_top;
 624          high_top = this.result_highlight.position().top + this.search_results.scrollTop();
 625          high_bottom = high_top + this.result_highlight.outerHeight();
 626          if (high_bottom >= visible_bottom) {
 627            return this.search_results.scrollTop((high_bottom - maxHeight) > 0 ? high_bottom - maxHeight : 0);
 628          } else if (high_top < visible_top) {
 629            return this.search_results.scrollTop(high_top);
 630          }
 631        }
 632      };
 633  
 634      Chosen.prototype.result_clear_highlight = function() {
 635        if (this.result_highlight) {
 636          this.result_highlight.removeClass("highlighted");
 637        }
 638        return this.result_highlight = null;
 639      };
 640  
 641      Chosen.prototype.results_show = function() {
 642        if (this.result_single_selected != null) {
 643          this.result_do_highlight(this.result_single_selected);
 644        } else if (this.is_multiple && this.max_selected_options <= this.choices) {
 645          this.form_field_jq.trigger("liszt:maxselected", {
 646            chosen: this
 647          });
 648          return false;
 649        }
 650        this.container.addClass("chzn-with-drop");
 651        this.form_field_jq.trigger("liszt:showing_dropdown", {
 652          chosen: this
 653        });
 654        this.results_showing = true;
 655        this.search_field.focus();
 656        this.search_field.val(this.search_field.val());
 657        return this.winnow_results();
 658      };
 659  
 660      Chosen.prototype.results_hide = function() {
 661        this.result_clear_highlight();
 662        this.container.removeClass("chzn-with-drop");
 663        this.form_field_jq.trigger("liszt:hiding_dropdown", {
 664          chosen: this
 665        });
 666        return this.results_showing = false;
 667      };
 668  
 669      Chosen.prototype.set_tab_index = function(el) {
 670        var ti;
 671        if (this.form_field_jq.attr("tabindex")) {
 672          ti = this.form_field_jq.attr("tabindex");
 673          this.form_field_jq.attr("tabindex", -1);
 674          return this.search_field.attr("tabindex", ti);
 675        }
 676      };
 677  
 678      Chosen.prototype.set_label_behavior = function() {
 679        var _this = this;
 680        this.form_field_label = this.form_field_jq.parents("label");
 681        if (!this.form_field_label.length && this.form_field.id.length) {
 682          this.form_field_label = $("label[for=" + this.form_field.id + "]");
 683        }
 684        if (this.form_field_label.length > 0) {
 685          return this.form_field_label.click(function(evt) {
 686            if (_this.is_multiple) {
 687              return _this.container_mousedown(evt);
 688            } else {
 689              return _this.activate_field();
 690            }
 691          });
 692        }
 693      };
 694  
 695      Chosen.prototype.show_search_field_default = function() {
 696        if (this.is_multiple && this.choices < 1 && !this.active_field) {
 697          this.search_field.val(this.default_text);
 698          return this.search_field.addClass("default");
 699        } else {
 700          this.search_field.val("");
 701          return this.search_field.removeClass("default");
 702        }
 703      };
 704  
 705      Chosen.prototype.search_results_mouseup = function(evt) {
 706        var target;
 707        target = $(evt.target).hasClass("active-result") ? $(evt.target) : $(evt.target).parents(".active-result").first();
 708        if (target.length) {
 709          this.result_highlight = target;
 710          this.result_select(evt);
 711          return this.search_field.focus();
 712        }
 713      };
 714  
 715      Chosen.prototype.search_results_mouseover = function(evt) {
 716        var target;
 717        target = $(evt.target).hasClass("active-result") ? $(evt.target) : $(evt.target).parents(".active-result").first();
 718        if (target) {
 719          return this.result_do_highlight(target);
 720        }
 721      };
 722  
 723      Chosen.prototype.search_results_mouseout = function(evt) {
 724        if ($(evt.target).hasClass("active-result" || $(evt.target).parents('.active-result').first())) {
 725          return this.result_clear_highlight();
 726        }
 727      };
 728  
 729      Chosen.prototype.choice_build = function(item) {
 730        var choice_id, html, link,
 731          _this = this;
 732        if (this.is_multiple && this.max_selected_options <= this.choices) {
 733          this.form_field_jq.trigger("liszt:maxselected", {
 734            chosen: this
 735          });
 736          return false;
 737        }
 738        choice_id = this.container_id + "_c_" + item.array_index;
 739        this.choices += 1;
 740        if (item.disabled) {
 741          html = '<li class="search-choice search-choice-disabled" id="' + choice_id + '"><span>' + item.html + '</span></li>';
 742        } else {
 743          html = '<li class="search-choice" id="' + choice_id + '"><span>' + item.html + '</span><a href="javascript:void(0)" class="search-choice-close" rel="' + item.array_index + '"></a></li>';
 744        }
 745        this.search_container.before(html);
 746        link = $('#' + choice_id).find("a").first();
 747        return link.click(function(evt) {
 748          return _this.choice_destroy_link_click(evt);
 749        });
 750      };
 751  
 752      Chosen.prototype.choice_destroy_link_click = function(evt) {
 753        evt.preventDefault();
 754        evt.stopPropagation();
 755        if (!this.is_disabled) {
 756          return this.choice_destroy($(evt.target));
 757        }
 758      };
 759  
 760      Chosen.prototype.choice_destroy = function(link) {
 761        if (this.result_deselect(link.attr("rel"))) {
 762          this.choices -= 1;
 763          this.show_search_field_default();
 764          if (this.is_multiple && this.choices > 0 && this.search_field.val().length < 1) {
 765            this.results_hide();
 766          }
 767          link.parents('li').first().remove();
 768          return this.search_field_scale();
 769        }
 770      };
 771  
 772      Chosen.prototype.results_reset = function() {
 773        this.form_field.options[0].selected = true;
 774        this.selected_item.find("span").text(this.default_text);
 775        if (!this.is_multiple) {
 776          this.selected_item.addClass("chzn-default");
 777        }
 778        this.show_search_field_default();
 779        this.results_reset_cleanup();
 780        this.form_field_jq.trigger("change");
 781        if (this.active_field) {
 782          return this.results_hide();
 783        }
 784      };
 785  
 786      Chosen.prototype.results_reset_cleanup = function() {
 787        this.current_selectedIndex = this.form_field.selectedIndex;
 788        return this.selected_item.find("abbr").remove();
 789      };
 790  
 791      Chosen.prototype.result_select = function(evt) {
 792        var high, high_id, item, position;
 793        if (this.result_highlight) {
 794          high = this.result_highlight;
 795          high_id = high.attr("id");
 796          this.result_clear_highlight();
 797          if (this.is_multiple) {
 798            this.result_deactivate(high);
 799          } else {
 800            this.search_results.find(".result-selected").removeClass("result-selected");
 801            this.result_single_selected = high;
 802            this.selected_item.removeClass("chzn-default");
 803          }
 804          high.addClass("result-selected");
 805          position = high_id.substr(high_id.lastIndexOf("_") + 1);
 806          item = this.results_data[position];
 807          item.selected = true;
 808          this.form_field.options[item.options_index].selected = true;
 809          if (this.is_multiple) {
 810            this.choice_build(item);
 811          } else {
 812            this.selected_item.find("span").first().text(item.text);
 813            if (this.allow_single_deselect) {
 814              this.single_deselect_control_build();
 815            }
 816          }
 817          if (!((evt.metaKey || evt.ctrlKey) && this.is_multiple)) {
 818            this.results_hide();
 819          }
 820          this.search_field.val("");
 821          if (this.is_multiple || this.form_field.selectedIndex !== this.current_selectedIndex) {
 822            this.form_field_jq.trigger("change", {
 823              'selected': this.form_field.options[item.options_index].value
 824            });
 825          }
 826          this.current_selectedIndex = this.form_field.selectedIndex;
 827          return this.search_field_scale();
 828        }
 829      };
 830  
 831      Chosen.prototype.result_activate = function(el) {
 832        return el.addClass("active-result");
 833      };
 834  
 835      Chosen.prototype.result_deactivate = function(el) {
 836        return el.removeClass("active-result");
 837      };
 838  
 839      Chosen.prototype.result_deselect = function(pos) {
 840        var result, result_data;
 841        result_data = this.results_data[pos];
 842        if (!this.form_field.options[result_data.options_index].disabled) {
 843          result_data.selected = false;
 844          this.form_field.options[result_data.options_index].selected = false;
 845          result = $("#" + this.container_id + "_o_" + pos);
 846          result.removeClass("result-selected").addClass("active-result").show();
 847          this.result_clear_highlight();
 848          this.winnow_results();
 849          this.form_field_jq.trigger("change", {
 850            deselected: this.form_field.options[result_data.options_index].value
 851          });
 852          this.search_field_scale();
 853          return true;
 854        } else {
 855          return false;
 856        }
 857      };
 858  
 859      Chosen.prototype.single_deselect_control_build = function() {
 860        if (this.allow_single_deselect && this.selected_item.find("abbr").length < 1) {
 861          return this.selected_item.find("span").first().after("<abbr class=\"search-choice-close\"></abbr>");
 862        }
 863      };
 864  
 865      Chosen.prototype.winnow_results = function() {
 866        var found, option, part, parts, regex, regexAnchor, result, result_id, results, searchText, startpos, text, zregex, _i, _j, _len, _len1, _ref;
 867        this.no_results_clear();
 868        results = 0;
 869        searchText = this.search_field.val() === this.default_text ? "" : $('<div/>').text($.trim(this.search_field.val())).html();
 870        regexAnchor = this.search_contains ? "" : "^";
 871        regex = new RegExp(regexAnchor + searchText.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&"), 'i');
 872        zregex = new RegExp(searchText.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&"), 'i');
 873        _ref = this.results_data;
 874        for (_i = 0, _len = _ref.length; _i < _len; _i++) {
 875          option = _ref[_i];
 876          if (!option.disabled && !option.empty) {
 877            if (option.group) {
 878              $('#' + option.dom_id).css('display', 'none');
 879            } else if (!(this.is_multiple && option.selected)) {
 880              found = false;
 881              result_id = option.dom_id;
 882              result = $("#" + result_id);
 883              if (regex.test(option.html)) {
 884                found = true;
 885                results += 1;
 886              } else if (this.enable_split_word_search && (option.html.indexOf(" ") >= 0 || option.html.indexOf("[") === 0)) {
 887                parts = option.html.replace(/\[|\]/g, "").split(" ");
 888                if (parts.length) {
 889                  for (_j = 0, _len1 = parts.length; _j < _len1; _j++) {
 890                    part = parts[_j];
 891                    if (regex.test(part)) {
 892                      found = true;
 893                      results += 1;
 894                    }
 895                  }
 896                }
 897              }
 898              if (found) {
 899                if (searchText.length) {
 900                  startpos = option.html.search(zregex);
 901                  text = option.html.substr(0, startpos + searchText.length) + '</em>' + option.html.substr(startpos + searchText.length);
 902                  text = text.substr(0, startpos) + '<em>' + text.substr(startpos);
 903                } else {
 904                  text = option.html;
 905                }
 906                result.html(text);
 907                this.result_activate(result);
 908                if (option.group_array_index != null) {
 909                  $("#" + this.results_data[option.group_array_index].dom_id).css('display', 'list-item');
 910                }
 911              } else {
 912                if (this.result_highlight && result_id === this.result_highlight.attr('id')) {
 913                  this.result_clear_highlight();
 914                }
 915                this.result_deactivate(result);
 916              }
 917            }
 918          }
 919        }
 920        if (results < 1 && searchText.length) {
 921          return this.no_results(searchText);
 922        } else {
 923          return this.winnow_results_set_highlight();
 924        }
 925      };
 926  
 927      Chosen.prototype.winnow_results_clear = function() {
 928        var li, lis, _i, _len, _results;
 929        this.search_field.val("");
 930        lis = this.search_results.find("li");
 931        _results = [];
 932        for (_i = 0, _len = lis.length; _i < _len; _i++) {
 933          li = lis[_i];
 934          li = $(li);
 935          if (li.hasClass("group-result")) {
 936            _results.push(li.css('display', 'auto'));
 937          } else if (!this.is_multiple || !li.hasClass("result-selected")) {
 938            _results.push(this.result_activate(li));
 939          } else {
 940            _results.push(void 0);
 941          }
 942        }
 943        return _results;
 944      };
 945  
 946      Chosen.prototype.winnow_results_set_highlight = function() {
 947        var do_high, selected_results;
 948        if (!this.result_highlight) {
 949          selected_results = !this.is_multiple ? this.search_results.find(".result-selected.active-result") : [];
 950          do_high = selected_results.length ? selected_results.first() : this.search_results.find(".active-result").first();
 951          if (do_high != null) {
 952            return this.result_do_highlight(do_high);
 953          }
 954        }
 955      };
 956  
 957      Chosen.prototype.no_results = function(terms) {
 958        var no_results_html;
 959        no_results_html = $('<li class="no-results">' + this.results_none_found + ' "<span></span>"</li>');
 960        no_results_html.find("span").first().html(terms);
 961        return this.search_results.append(no_results_html);
 962      };
 963  
 964      Chosen.prototype.no_results_clear = function() {
 965        return this.search_results.find(".no-results").remove();
 966      };
 967  
 968      Chosen.prototype.keydown_arrow = function() {
 969        var first_active, next_sib;
 970        if (!this.result_highlight) {
 971          first_active = this.search_results.find("li.active-result").first();
 972          if (first_active) {
 973            this.result_do_highlight($(first_active));
 974          }
 975        } else if (this.results_showing) {
 976          next_sib = this.result_highlight.nextAll("li.active-result").first();
 977          if (next_sib) {
 978            this.result_do_highlight(next_sib);
 979          }
 980        }
 981        if (!this.results_showing) {
 982          return this.results_show();
 983        }
 984      };
 985  
 986      Chosen.prototype.keyup_arrow = function() {
 987        var prev_sibs;
 988        if (!this.results_showing && !this.is_multiple) {
 989          return this.results_show();
 990        } else if (this.result_highlight) {
 991          prev_sibs = this.result_highlight.prevAll("li.active-result");
 992          if (prev_sibs.length) {
 993            return this.result_do_highlight(prev_sibs.first());
 994          } else {
 995            if (this.choices > 0) {
 996              this.results_hide();
 997            }
 998            return this.result_clear_highlight();
 999          }
1000        }
1001      };
1002  
1003      Chosen.prototype.keydown_backstroke = function() {
1004        var next_available_destroy;
1005        if (this.pending_backstroke) {
1006          this.choice_destroy(this.pending_backstroke.find("a").first());
1007          return this.clear_backstroke();
1008        } else {
1009          next_available_destroy = this.search_container.siblings("li.search-choice").last();
1010          if (next_available_destroy.length && !next_available_destroy.hasClass("search-choice-disabled")) {
1011            this.pending_backstroke = next_available_destroy;
1012            if (this.single_backstroke_delete) {
1013              return this.keydown_backstroke();
1014            } else {
1015              return this.pending_backstroke.addClass("search-choice-focus");
1016            }
1017          }
1018        }
1019      };
1020  
1021      Chosen.prototype.clear_backstroke = function() {
1022        if (this.pending_backstroke) {
1023          this.pending_backstroke.removeClass("search-choice-focus");
1024        }
1025        return this.pending_backstroke = null;
1026      };
1027  
1028      Chosen.prototype.keydown_checker = function(evt) {
1029        var stroke, _ref;
1030        stroke = (_ref = evt.which) != null ? _ref : evt.keyCode;
1031        this.search_field_scale();
1032        if (stroke !== 8 && this.pending_backstroke) {
1033          this.clear_backstroke();
1034        }
1035        switch (stroke) {
1036          case 8:
1037            this.backstroke_length = this.search_field.val().length;
1038            break;
1039          case 9:
1040            if (this.results_showing && !this.is_multiple) {
1041              this.result_select(evt);
1042            }
1043            this.mouse_on_container = false;
1044            break;
1045          case 13:
1046            evt.preventDefault();
1047            break;
1048          case 38:
1049            evt.preventDefault();
1050            this.keyup_arrow();
1051            break;
1052          case 40:
1053            this.keydown_arrow();
1054            break;
1055        }
1056      };
1057  
1058      Chosen.prototype.search_field_scale = function() {
1059        var div, h, style, style_block, styles, w, _i, _len;
1060        if (this.is_multiple) {
1061          h = 0;
1062          w = 0;
1063          style_block = "position:absolute; left: -1000px; top: -1000px; display:none;";
1064          styles = ['font-size', 'font-style', 'font-weight', 'font-family', 'line-height', 'text-transform', 'letter-spacing'];
1065          for (_i = 0, _len = styles.length; _i < _len; _i++) {
1066            style = styles[_i];
1067            style_block += style + ":" + this.search_field.css(style) + ";";
1068          }
1069          div = $('<div />', {
1070            'style': style_block
1071          });
1072          div.text(this.search_field.val());
1073          $('body').append(div);
1074          w = div.width() + 25;
1075          div.remove();
1076          if (!this.f_width) {
1077            this.f_width = this.container.outerWidth();
1078          }
1079          if (w > this.f_width - 10) {
1080            w = this.f_width - 10;
1081          }
1082          return this.search_field.css({
1083            'width': w + 'px'
1084          });
1085        }
1086      };
1087  
1088      Chosen.prototype.generate_random_id = function() {
1089        var string;
1090        string = "sel" + this.generate_random_char() + this.generate_random_char() + this.generate_random_char();
1091        while ($("#" + string).length > 0) {
1092          string += this.generate_random_char();
1093        }
1094        return string;
1095      };
1096  
1097      return Chosen;
1098  
1099    })(AbstractChosen);
1100  
1101    root.Chosen = Chosen;
1102  
1103  }).call(this);