Remove stray console call.

Conflicts:
	chosen/chosen.jquery.min.js
	chosen/chosen.proto.min.js

chosen/chosen.css

@@ -387,3 +387,7 @@
   direction: rtl;
 }
 /* @end */
+
+/* @group Select all options */
+.chzn-select-all { background: #f8f8f8; border-top: 1px solid #ededed; color: #346f9b; cursor:pointer; display: block; font-size: 12px; font-weight: bold; padding: 5px 6px; text-align: center; text-decoration: none; }
+/* @end */

chosen/chosen.jquery.js

@@ -106,8 +106,6 @@ Copyright (c) 2011 by Harvest
       this.form_field = form_field;
       this.options = options != null ? options : {};
       this.set_default_values();
-      this.is_multiple = this.form_field.multiple;
-      this.default_text_default = this.is_multiple ? "Select Some Options" : "Select an Option";
       this.setup();
       this.set_up_html();
       this.register_observers();
@@ -116,6 +114,8 @@ Copyright (c) 2011 by Harvest
 
     AbstractChosen.prototype.set_default_values = function() {
       var _this = this;
+      this.is_multiple = this.form_field.multiple;
+      this.default_text_default = this.is_multiple ? "Select Some Options" : "Select an Option";
       this.click_test_action = function(evt) {
         return _this.test_active_click(evt);
       };
@@ -127,8 +127,10 @@ Copyright (c) 2011 by Harvest
       this.results_showing = false;
       this.result_highlighted = null;
       this.result_single_selected = null;
+      this.enable_group_select = this.options.enable_group_select || false;
       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;
       this.disable_search_threshold = this.options.disable_search_threshold || 0;
+      this.enable_select_all = (this.options.enable_select_all != null) && this.is_multiple ? this.options.enable_select_all : false;
       this.choices = 0;
       return this.results_none_found = this.options.no_results_text || "No results match";
     };
@@ -197,6 +199,30 @@ Copyright (c) 2011 by Harvest
       }
     };
 
+    AbstractChosen.prototype.winnow_search_match = function(regex, optionText) {
+      var found, part, parts, _i, _len;
+      found = false;
+      if (regex.test(optionText)) {
+        found = true;
+      } else if (optionText.indexOf(" ") >= 0 || optionText.indexOf("[") === 0) {
+        parts = optionText.replace(/\[|\]/g, "").split(" ");
+        if (parts.length) {
+          for (_i = 0, _len = parts.length; _i < _len; _i++) {
+            part = parts[_i];
+            if (regex.test(part)) found = true;
+          }
+        }
+      }
+      return found;
+    };
+
+    AbstractChosen.prototype.winnow_search_highlight_match = function(regex, optionText, searchTextLength) {
+      var startpos, text;
+      startpos = optionText.search(regex);
+      text = optionText.substr(0, startpos + searchTextLength) + '</em>' + optionText.substr(startpos + searchTextLength);
+      return text = text.substr(0, startpos) + '<em>' + text.substr(startpos);
+    };
+
     AbstractChosen.prototype.keyup_checker = function(evt) {
       var stroke, _ref;
       stroke = (_ref = evt.which) != null ? _ref : evt.keyCode;
@@ -204,15 +230,15 @@ Copyright (c) 2011 by Harvest
       switch (stroke) {
         case 8:
           if (this.is_multiple && this.backstroke_length < 1 && this.choices > 0) {
-            return this.keydown_backstroke();
+            this.keydown_backstroke();
           } else if (!this.pending_backstroke) {
             this.result_clear_highlight();
-            return this.results_search();
+            this.results_search();
           }
           break;
         case 13:
           evt.preventDefault();
-          if (this.results_showing) return this.result_select(evt);
+          if (this.results_showing) this.result_select(evt);
           break;
         case 27:
           if (this.results_showing) this.results_hide();
@@ -225,8 +251,9 @@ Copyright (c) 2011 by Harvest
         case 17:
           break;
         default:
-          return this.results_search();
+          this.results_search();
       }
+      if (this.enable_select_all) return this.select_all_toggle();
     };
 
     AbstractChosen.prototype.generate_field_id = function() {
@@ -313,6 +340,7 @@ Copyright (c) 2011 by Harvest
       this.container = $('#' + this.container_id);
       this.container.addClass("chzn-container-" + (this.is_multiple ? "multi" : "single"));
       this.dropdown = this.container.find('div.chzn-drop').first();
+      if (this.enable_select_all) this.select_all_setup();
       dd_top = this.container.height();
       dd_width = this.f_width - get_side_border_padding(this.dropdown);
       this.dropdown.css({
@@ -560,7 +588,8 @@ Copyright (c) 2011 by Harvest
       this.results_showing = true;
       this.search_field.focus();
       this.search_field.val(this.search_field.val());
-      return this.winnow_results();
+      this.winnow_results();
+      if (this.enable_select_all) return this.select_all_toggle();
     };
 
     Chosen.prototype.results_hide = function() {
@@ -574,6 +603,49 @@ Copyright (c) 2011 by Harvest
       return this.results_showing = false;
     };
 
+    Chosen.prototype.select_all_setup = function() {
+      var select_all_temp,
+        _this = this;
+      select_all_temp = $("<a />", {
+        "class": "chzn-select-all"
+      }).html("Select all options");
+      this.dropdown.append(select_all_temp);
+      this.select_all_link = this.dropdown.find(".chzn-select-all").first();
+      return this.select_all_link.click(function(evt) {
+        return _this.select_all_options(evt);
+      });
+    };
+
+    Chosen.prototype.select_all_options = function(evt) {
+      var option, options, _i, _len;
+      evt.preventDefault();
+      options = this.form_field_jq.find("option");
+      for (_i = 0, _len = options.length; _i < _len; _i++) {
+        option = options[_i];
+        if (!option.disabled) option.selected = true;
+      }
+      this.form_field_jq.trigger("liszt:updated");
+      return this.select_all_disable();
+    };
+
+    Chosen.prototype.select_all_disable = function() {
+      return this.select_all_link.hide();
+    };
+
+    Chosen.prototype.select_all_enable = function() {
+      return this.select_all_link.show();
+    };
+
+    Chosen.prototype.select_all_toggle = function() {
+      var actives;
+      actives = this.search_results.find("li.active-result");
+      if (!actives.length || this.search_field.val().length) {
+        return this.select_all_disable();
+      } else {
+        return this.select_all_enable();
+      }
+    };
+
     Chosen.prototype.set_tab_index = function(el) {
       var ti;
       if (this.form_field_jq.attr("tabindex")) {
@@ -599,10 +671,23 @@ Copyright (c) 2011 by Harvest
     };
 
     Chosen.prototype.search_results_mouseup = function(evt) {
-      var target;
-      target = $(evt.target).hasClass("active-result") ? $(evt.target) : $(evt.target).parents(".active-result").first();
-      if (target.length) {
-        this.result_highlight = target;
+      var child, children, group, option, _i, _len;
+      if (this.enable_group_select) {
+        group = $(evt.target).hasClass("group-result") ? $(evt.target) : $(evt.target).parents(".group-result").first();
+        if (group.length) {
+          children = group.nextUntil(".group-result", ".active-result");
+          for (_i = 0, _len = children.length; _i < _len; _i++) {
+            child = children[_i];
+            this.result_highlight = $(child);
+            this.result_select({
+              metaKey: null
+            });
+          }
+        }
+      }
+      option = $(evt.target).hasClass("active-result") ? $(evt.target) : $(evt.target).parents(".active-result").first();
+      if (option.length) {
+        this.result_highlight = option;
         return this.result_select(evt);
       }
     };
@@ -725,42 +810,26 @@ Copyright (c) 2011 by Harvest
     };
 
     Chosen.prototype.winnow_results = function() {
-      var found, option, part, parts, regex, result, result_id, results, searchText, startpos, text, zregex, _i, _j, _len, _len2, _ref;
+      var found, option, result, result_id, results, text, _i, _len, _ref;
       this.no_results_clear();
       results = 0;
-      searchText = this.search_field.val() === this.default_text ? "" : $('<div/>').text($.trim(this.search_field.val())).html();
-      regex = new RegExp('^' + searchText.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&"), 'i');
-      zregex = new RegExp(searchText.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&"), 'i');
+      this.searchText = this.search_field.val() === this.default_text ? "" : $('<div/>').text($.trim(this.search_field.val())).html();
+      this.regex = new RegExp('^' + this.searchText.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&"), 'i');
+      this.zregex = new RegExp(this.searchText.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&"), 'i');
       _ref = this.results_data;
       for (_i = 0, _len = _ref.length; _i < _len; _i++) {
         option = _ref[_i];
         if (!option.disabled && !option.empty) {
           if (option.group) {
-            $('#' + option.dom_id).css('display', 'none');
+            this.winnow_option_group(option);
           } else if (!(this.is_multiple && option.selected)) {
-            found = false;
+            found = this.winnow_search_match(this.regex, option.html);
             result_id = option.dom_id;
             result = $("#" + result_id);
-            if (regex.test(option.html)) {
-              found = true;
+            if (found || ((option.group_array_index != null) && this.results_data[option.group_array_index].search_match)) {
               results += 1;
-            } else if (option.html.indexOf(" ") >= 0 || option.html.indexOf("[") === 0) {
-              parts = option.html.replace(/\[|\]/g, "").split(" ");
-              if (parts.length) {
-                for (_j = 0, _len2 = parts.length; _j < _len2; _j++) {
-                  part = parts[_j];
-                  if (regex.test(part)) {
-                    found = true;
-                    results += 1;
-                  }
-                }
-              }
-            }
-            if (found) {
-              if (searchText.length) {
-                startpos = option.html.search(zregex);
-                text = option.html.substr(0, startpos + searchText.length) + '</em>' + option.html.substr(startpos + searchText.length);
-                text = text.substr(0, startpos) + '<em>' + text.substr(startpos);
+              if (this.searchText.length && found) {
+                text = this.winnow_search_highlight_match(this.zregex, option.html, this.searchText.length);
               } else {
                 text = option.html;
               }
@@ -778,13 +847,22 @@ Copyright (c) 2011 by Harvest
           }
         }
       }
-      if (results < 1 && searchText.length) {
-        return this.no_results(searchText);
+      if (results < 1 && this.searchText.length) {
+        return this.no_results(this.searchText);
       } else {
         return this.winnow_results_set_highlight();
       }
     };
 
+    Chosen.prototype.winnow_option_group = function(group) {
+      var text;
+      $('#' + group.dom_id).css('display', 'none');
+      group.search_match = this.winnow_search_match(this.regex, group.label);
+      text = this.searchText.length && group.search_match ? this.winnow_search_highlight_match(this.zregex, group.label, this.searchText.length) : group.label;
+      $("#" + group.dom_id).html(text);
+      return group.search_match;
+    };
+
     Chosen.prototype.winnow_results_clear = function() {
       var li, lis, _i, _len, _results;
       this.search_field.val("");

chosen/chosen.proto.js

@@ -106,8 +106,6 @@ Copyright (c) 2011 by Harvest
       this.form_field = form_field;
       this.options = options != null ? options : {};
       this.set_default_values();
-      this.is_multiple = this.form_field.multiple;
-      this.default_text_default = this.is_multiple ? "Select Some Options" : "Select an Option";
       this.setup();
       this.set_up_html();
       this.register_observers();
@@ -116,6 +114,8 @@ Copyright (c) 2011 by Harvest
 
     AbstractChosen.prototype.set_default_values = function() {
       var _this = this;
+      this.is_multiple = this.form_field.multiple;
+      this.default_text_default = this.is_multiple ? "Select Some Options" : "Select an Option";
       this.click_test_action = function(evt) {
         return _this.test_active_click(evt);
       };
@@ -127,8 +127,10 @@ Copyright (c) 2011 by Harvest
       this.results_showing = false;
       this.result_highlighted = null;
       this.result_single_selected = null;
+      this.enable_group_select = this.options.enable_group_select || false;
       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;
       this.disable_search_threshold = this.options.disable_search_threshold || 0;
+      this.enable_select_all = (this.options.enable_select_all != null) && this.is_multiple ? this.options.enable_select_all : false;
       this.choices = 0;
       return this.results_none_found = this.options.no_results_text || "No results match";
     };
@@ -197,6 +199,30 @@ Copyright (c) 2011 by Harvest
       }
     };
 
+    AbstractChosen.prototype.winnow_search_match = function(regex, optionText) {
+      var found, part, parts, _i, _len;
+      found = false;
+      if (regex.test(optionText)) {
+        found = true;
+      } else if (optionText.indexOf(" ") >= 0 || optionText.indexOf("[") === 0) {
+        parts = optionText.replace(/\[|\]/g, "").split(" ");
+        if (parts.length) {
+          for (_i = 0, _len = parts.length; _i < _len; _i++) {
+            part = parts[_i];
+            if (regex.test(part)) found = true;
+          }
+        }
+      }
+      return found;
+    };
+
+    AbstractChosen.prototype.winnow_search_highlight_match = function(regex, optionText, searchTextLength) {
+      var startpos, text;
+      startpos = optionText.search(regex);
+      text = optionText.substr(0, startpos + searchTextLength) + '</em>' + optionText.substr(startpos + searchTextLength);
+      return text = text.substr(0, startpos) + '<em>' + text.substr(startpos);
+    };
+
     AbstractChosen.prototype.keyup_checker = function(evt) {
       var stroke, _ref;
       stroke = (_ref = evt.which) != null ? _ref : evt.keyCode;
@@ -204,15 +230,15 @@ Copyright (c) 2011 by Harvest
       switch (stroke) {
         case 8:
           if (this.is_multiple && this.backstroke_length < 1 && this.choices > 0) {
-            return this.keydown_backstroke();
+            this.keydown_backstroke();
           } else if (!this.pending_backstroke) {
             this.result_clear_highlight();
-            return this.results_search();
+            this.results_search();
           }
           break;
         case 13:
           evt.preventDefault();
-          if (this.results_showing) return this.result_select(evt);
+          if (this.results_showing) this.result_select(evt);
           break;
         case 27:
           if (this.results_showing) this.results_hide();
@@ -225,8 +251,9 @@ Copyright (c) 2011 by Harvest
         case 17:
           break;
         default:
-          return this.results_search();
+          this.results_search();
       }
+      if (this.enable_select_all) return this.select_all_toggle();
     };
 
     AbstractChosen.prototype.generate_field_id = function() {
@@ -284,7 +311,8 @@ Copyright (c) 2011 by Harvest
       this.single_temp = new Template('<a href="javascript:void(0)" class="chzn-single"><span>#{default}</span><div><b></b></div></a><div class="chzn-drop" style="left:-9000px;"><div class="chzn-search"><input type="text" autocomplete="off" /></div><ul class="chzn-results"></ul></div>');
       this.multi_temp = new Template('<ul class="chzn-choices"><li class="search-field"><input type="text" value="#{default}" class="default" autocomplete="off" style="width:25px;" /></li></ul><div class="chzn-drop" style="left:-9000px;"><ul class="chzn-results"></ul></div>');
       this.choice_temp = new Template('<li class="search-choice" id="#{id}"><span>#{choice}</span><a href="javascript:void(0)" class="search-choice-close" rel="#{position}"></a></li>');
-      return this.no_results_temp = new Template('<li class="no-results">' + this.results_none_found + ' "<span>#{terms}</span>"</li>');
+      this.no_results_temp = new Template('<li class="no-results">' + this.results_none_found + ' "<span>#{terms}</span>"</li>');
+      return this.select_all_temp = new Template('<a href="javascript:void(0)" class="chzn-select-all">#{copy}</a>');
     };
 
     Chosen.prototype.set_up_html = function() {
@@ -308,6 +336,7 @@ Copyright (c) 2011 by Harvest
       this.container = $(this.container_id);
       this.container.addClassName("chzn-container-" + (this.is_multiple ? "multi" : "single"));
       this.dropdown = this.container.down('div.chzn-drop');
+      if (this.enable_select_all) this.select_all_setup();
       dd_top = this.container.getHeight();
       dd_width = this.f_width - get_side_border_padding(this.dropdown);
       this.dropdown.setStyle({
@@ -554,7 +583,8 @@ Copyright (c) 2011 by Harvest
       this.results_showing = true;
       this.search_field.focus();
       this.search_field.value = this.search_field.value;
-      return this.winnow_results();
+      this.winnow_results();
+      if (this.enable_select_all) return this.select_all_toggle();
     };
 
     Chosen.prototype.results_hide = function() {
@@ -568,6 +598,44 @@ Copyright (c) 2011 by Harvest
       return this.results_showing = false;
     };
 
+    Chosen.prototype.select_all_setup = function() {
+      var _this = this;
+      this.dropdown.insert(this.select_all_temp.evaluate({
+        "copy": "Select all options"
+      }));
+      this.select_all_link = this.dropdown.down(".chzn-select-all");
+      return this.select_all_link.observe("click", function(evt) {
+        return _this.select_all_options(evt);
+      });
+    };
+
+    Chosen.prototype.select_all_options = function(evt) {
+      evt.stop();
+      this.form_field.select("option").each(function(option) {
+        if (!option.disabled) return option.selected = true;
+      });
+      this.form_field.fire("liszt:updated");
+      return this.select_all_disable();
+    };
+
+    Chosen.prototype.select_all_disable = function() {
+      return this.select_all_link.hide();
+    };
+
+    Chosen.prototype.select_all_enable = function() {
+      return this.select_all_link.show();
+    };
+
+    Chosen.prototype.select_all_toggle = function() {
+      var actives;
+      actives = this.search_results.select("li.active-result");
+      if (!actives.length || this.search_field.value.length) {
+        return this.select_all_disable();
+      } else {
+        return this.select_all_enable();
+      }
+    };
+
     Chosen.prototype.set_tab_index = function(el) {
       var ti;
       if (this.form_field.tabIndex) {
@@ -593,10 +661,27 @@ Copyright (c) 2011 by Harvest
     };
 
     Chosen.prototype.search_results_mouseup = function(evt) {
-      var target;
-      target = evt.target.hasClassName("active-result") ? evt.target : evt.target.up(".active-result");
-      if (target) {
-        this.result_highlight = target;
+      var child, group, option, possible_children, _i, _len;
+      if (this.enable_group_select) {
+        group = evt.target.hasClassName("group-result") ? evt.target : evt.target.up(".group-result");
+        if (group) {
+          possible_children = group.nextSiblings();
+          for (_i = 0, _len = possible_children.length; _i < _len; _i++) {
+            child = possible_children[_i];
+            if (child.hasClassName("active-result")) {
+              this.result_highlight = $(child);
+              this.result_select({
+                metaKey: null
+              });
+            } else if (child.hasClassName("group-result")) {
+              return false;
+            }
+          }
+        }
+      }
+      option = evt.target.hasClassName("active-result") ? evt.target : evt.target.up(".active-result");
+      if (option) {
+        this.result_highlight = option;
         return this.result_select(evt);
       }
     };
@@ -726,41 +811,25 @@ Copyright (c) 2011 by Harvest
     };
 
     Chosen.prototype.winnow_results = function() {
-      var found, option, part, parts, regex, result_id, results, searchText, startpos, text, zregex, _i, _j, _len, _len2, _ref;
+      var found, option, result_id, results, text, _i, _len, _ref;
       this.no_results_clear();
       results = 0;
-      searchText = this.search_field.value === this.default_text ? "" : this.search_field.value.strip().escapeHTML();
-      regex = new RegExp('^' + searchText.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&"), 'i');
-      zregex = new RegExp(searchText.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&"), 'i');
+      this.searchText = this.search_field.value === this.default_text ? "" : this.search_field.value.strip().escapeHTML();
+      this.regex = new RegExp('^' + this.searchText.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&"), 'i');
+      this.zregex = new RegExp(this.searchText.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&"), 'i');
       _ref = this.results_data;
       for (_i = 0, _len = _ref.length; _i < _len; _i++) {
         option = _ref[_i];
         if (!option.disabled && !option.empty) {
           if (option.group) {
-            $(option.dom_id).hide();
+            this.winnow_option_group(option);
           } else if (!(this.is_multiple && option.selected)) {
-            found = false;
+            found = this.winnow_search_match(this.regex, option.html);
             result_id = option.dom_id;
-            if (regex.test(option.html)) {
-              found = true;
+            if (found || ((option.group_array_index != null) && this.results_data[option.group_array_index].search_match)) {
               results += 1;
-            } else if (option.html.indexOf(" ") >= 0 || option.html.indexOf("[") === 0) {
-              parts = option.html.replace(/\[|\]/g, "").split(" ");
-              if (parts.length) {
-                for (_j = 0, _len2 = parts.length; _j < _len2; _j++) {
-                  part = parts[_j];
-                  if (regex.test(part)) {
-                    found = true;
-                    results += 1;
-                  }
-                }
-              }
-            }
-            if (found) {
-              if (searchText.length) {
-                startpos = option.html.search(zregex);
-                text = option.html.substr(0, startpos + searchText.length) + '</em>' + option.html.substr(startpos + searchText.length);
-                text = text.substr(0, startpos) + '<em>' + text.substr(startpos);
+              if (this.searchText.length && found) {
+                text = this.winnow_search_highlight_match(this.zregex, option.html, this.searchText.length);
               } else {
                 text = option.html;
               }
@@ -780,13 +849,21 @@ Copyright (c) 2011 by Harvest
           }
         }
       }
-      if (results < 1 && searchText.length) {
-        return this.no_results(searchText);
+      if (results < 1 && this.searchText.length) {
+        return this.no_results(this.searchText);
       } else {
         return this.winnow_results_set_highlight();
       }
     };
 
+    Chosen.prototype.winnow_option_group = function(group) {
+      var text;
+      $("" + group.dom_id).hide();
+      group.search_match = this.winnow_search_match(this.regex, group.label);
+      text = this.searchText.length && group.search_match ? this.winnow_search_highlight_match(this.zregex, group.label, this.searchText.length) : group.label;
+      return $("" + group.dom_id).update(text);
+    };
+
     Chosen.prototype.winnow_results_clear = function() {
       var li, lis, _i, _len, _results;
       this.search_field.clear();

coffee/chosen.jquery.coffee

@@ -47,6 +47,8 @@ class Chosen extends AbstractChosen
     @container.addClass( "chzn-container-" + (if @is_multiple then "multi" else "single") )
     @dropdown = @container.find('div.chzn-drop').first()
     
+    this.select_all_setup() if @enable_select_all
+    
     dd_top = @container.height()
     dd_width = (@f_width - get_side_border_padding(@dropdown))
     
@@ -242,6 +244,7 @@ class Chosen extends AbstractChosen
     @search_field.val @search_field.val()
 
     this.winnow_results()
+    this.select_all_toggle() if @enable_select_all
 
   results_hide: ->
     @selected_item.removeClass "chzn-single-with-drop" unless @is_multiple
@@ -249,6 +252,33 @@ class Chosen extends AbstractChosen
     @dropdown.css {"left":"-9000px"}
     @results_showing = false
 
+  select_all_setup: ->
+    select_all_temp = $("<a />", { class: "chzn-select-all" }).html("Select all options")
+    @dropdown.append(select_all_temp)
+    @select_all_link = @dropdown.find(".chzn-select-all").first()
+    @select_all_link.click((evt) => this.select_all_options(evt))
+
+  select_all_options: (evt) ->
+    evt.preventDefault()
+    
+    options = @form_field_jq.find("option")
+    for option in options
+      option.selected = true if not option.disabled
+    @form_field_jq.trigger("liszt:updated")
+    this.select_all_disable()
+
+  select_all_disable: ->
+    @select_all_link.hide()
+
+  select_all_enable: ->
+    @select_all_link.show()
+
+  select_all_toggle: ->
+    actives = @search_results.find("li.active-result")
+    if not actives.length or @search_field.val().length
+      this.select_all_disable()
+    else
+      this.select_all_enable()
 
   set_tab_index: (el) ->
     if @form_field_jq.attr "tabindex"
@@ -270,9 +300,17 @@ class Chosen extends AbstractChosen
       @search_field.removeClass "default"
 
   search_results_mouseup: (evt) ->
-    target = if $(evt.target).hasClass "active-result" then $(evt.target) else $(evt.target).parents(".active-result").first()
-    if target.length
-      @result_highlight = target
+    if @enable_group_select
+      group = if $(evt.target).hasClass "group-result" then $(evt.target) else $(evt.target).parents(".group-result").first()
+      if group.length
+        children = group.nextUntil(".group-result", ".active-result")
+        for child in children
+          @result_highlight = $(child)
+          this.result_select({metaKey: null})
+    
+    option = if $(evt.target).hasClass "active-result" then $(evt.target) else $(evt.target).parents(".active-result").first()
+    if option.length
+      @result_highlight = option
       this.result_select(evt)
 
   search_results_mouseover: (evt) ->
@@ -382,36 +420,25 @@ class Chosen extends AbstractChosen
     
     results = 0
 
-    searchText = if @search_field.val() is @default_text then "" else $('<div/>').text($.trim(@search_field.val())).html()
-    regex = new RegExp('^' + searchText.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&"), 'i')
-    zregex = new RegExp(searchText.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&"), 'i')
+    @searchText = if @search_field.val() is @default_text then "" else $('<div/>').text($.trim(@search_field.val())).html()
+    @regex = new RegExp('^' + @searchText.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&"), 'i')
+    @zregex = new RegExp(@searchText.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&"), 'i')
 
     for option in @results_data
       if not option.disabled and not option.empty
         if option.group
-          $('#' + option.dom_id).css('display', 'none')
+          this.winnow_option_group(option)
         else if not (@is_multiple and option.selected)
-          found = false
+          found = this.winnow_search_match(@regex, option.html)
+          
           result_id = option.dom_id
           result = $("#" + result_id)
-          
-          if regex.test option.html
-            found = true
-            results += 1
-          else if option.html.indexOf(" ") >= 0 or option.html.indexOf("[") == 0
-            #TODO: replace this substitution of /\[\]/ with a list of characters to skip.
-            parts = option.html.replace(/\[|\]/g, "").split(" ")
-            if parts.length
-              for part in parts
-                if regex.test part
-                  found = true
-                  results += 1
 
-          if found
-            if searchText.length
-              startpos = option.html.search zregex
-              text = option.html.substr(0, startpos + searchText.length) + '</em>' + option.html.substr(startpos + searchText.length)
-              text = text.substr(0, startpos) + '<em>' + text.substr(startpos)
+          if found or (option.group_array_index? && @results_data[option.group_array_index].search_match)
+            results += 1
+            
+            if @searchText.length and found
+              text = this.winnow_search_highlight_match(@zregex, option.html, @searchText.length)
             else
               text = option.html
             
@@ -423,10 +450,20 @@ class Chosen extends AbstractChosen
             this.result_clear_highlight() if @result_highlight and result_id is @result_highlight.attr 'id'
             this.result_deactivate result
 
-    if results < 1 and searchText.length
-      this.no_results searchText
+    if results < 1 and @searchText.length
+      this.no_results @searchText
     else
       this.winnow_results_set_highlight()
+  
+  winnow_option_group: (group) ->
+    $('#' + group.dom_id).css('display', 'none')
+    
+    group.search_match = this.winnow_search_match(@regex, group.label)
+      
+    text = if @searchText.length and group.search_match then this.winnow_search_highlight_match(@zregex, group.label, @searchText.length) else group.label
+    $("##{group.dom_id}").html(text)
+
+    return group.search_match
 
   winnow_results_clear: ->
     @search_field.val ""

coffee/chosen.proto.coffee

@@ -20,6 +20,7 @@ class Chosen extends AbstractChosen
     @multi_temp = new Template('<ul class="chzn-choices"><li class="search-field"><input type="text" value="#{default}" class="default" autocomplete="off" style="width:25px;" /></li></ul><div class="chzn-drop" style="left:-9000px;"><ul class="chzn-results"></ul></div>')
     @choice_temp = new Template('<li class="search-choice" id="#{id}"><span>#{choice}</span><a href="javascript:void(0)" class="search-choice-close" rel="#{position}"></a></li>')
     @no_results_temp = new Template('<li class="no-results">' + @results_none_found + ' "<span>#{terms}</span>"</li>')
+    @select_all_temp = new Template('<a href="javascript:void(0)" class="chzn-select-all">#{copy}</a>')
 
   set_up_html: ->
     @container_id = @form_field.identify().replace(/(:|\.)/g, '_') + "_chzn"
@@ -34,11 +35,13 @@ class Chosen extends AbstractChosen
     @default_text = if @form_field.readAttribute 'data-placeholder' then @form_field.readAttribute 'data-placeholder' else @default_text_default
     
     base_template = if @is_multiple then new Element('div', container_props).update( @multi_temp.evaluate({ "default": @default_text}) ) else new Element('div', container_props).update( @single_temp.evaluate({ "default":@default_text }) )
-
+    
     @form_field.hide().insert({ after: base_template })
     @container = $(@container_id)
     @container.addClassName( "chzn-container-" + (if @is_multiple then "multi" else "single") )
     @dropdown = @container.down('div.chzn-drop')
+
+    this.select_all_setup() if @enable_select_all
     
     dd_top = @container.getHeight()
     dd_width = (@f_width - get_side_border_padding(@dropdown))
@@ -233,6 +236,7 @@ class Chosen extends AbstractChosen
     @search_field.value = @search_field.value
 
     this.winnow_results()
+    this.select_all_toggle() if @enable_select_all
 
   results_hide: ->
     @selected_item.removeClassName('chzn-single-with-drop') unless @is_multiple
@@ -240,6 +244,30 @@ class Chosen extends AbstractChosen
     @dropdown.setStyle({"left":"-9000px"})
     @results_showing = false
 
+  select_all_setup: ->
+    @dropdown.insert(@select_all_temp.evaluate({ "copy": "Select all options" }))
+    @select_all_link = @dropdown.down(".chzn-select-all")
+    @select_all_link.observe("click", (evt) => this.select_all_options(evt))
+
+  select_all_options: (evt) ->
+    evt.stop()
+    @form_field.select("option").each (option) ->
+      option.selected = true if not option.disabled
+    @form_field.fire("liszt:updated")
+    this.select_all_disable()
+  
+  select_all_disable: ->
+    @select_all_link.hide()
+  
+  select_all_enable: ->
+    @select_all_link.show()
+    
+  select_all_toggle: ->
+    actives = @search_results.select("li.active-result")
+    if not actives.length or @search_field.value.length
+      this.select_all_disable()
+    else
+      this.select_all_enable()
 
   set_tab_index: (el) ->
     if @form_field.tabIndex
@@ -261,9 +289,20 @@ class Chosen extends AbstractChosen
       @search_field.removeClassName "default"
 
   search_results_mouseup: (evt) ->
-    target = if evt.target.hasClassName("active-result") then evt.target else evt.target.up(".active-result")
-    if target
-      @result_highlight = target
+    if @enable_group_select
+      group = if evt.target.hasClassName("group-result") then evt.target else evt.target.up(".group-result")
+      if group
+        possible_children = group.nextSiblings()
+        for child in possible_children
+          if child.hasClassName("active-result")
+            @result_highlight = $(child)
+            this.result_select({metaKey: null})
+          else if child.hasClassName("group-result")
+            return false
+          
+    option = if evt.target.hasClassName("active-result") then evt.target else evt.target.up(".active-result")
+    if option
+      @result_highlight = option
       this.result_select(evt)
 
   search_results_mouseover: (evt) ->
@@ -373,35 +412,24 @@ class Chosen extends AbstractChosen
 
     results = 0
 
-    searchText = if @search_field.value is @default_text then "" else @search_field.value.strip().escapeHTML()
-    regex = new RegExp('^' + searchText.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&"), 'i')
-    zregex = new RegExp(searchText.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&"), 'i')
+    @searchText = if @search_field.value is @default_text then "" else @search_field.value.strip().escapeHTML()
+    @regex = new RegExp('^' + @searchText.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&"), 'i')
+    @zregex = new RegExp(@searchText.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&"), 'i')
 
     for option in @results_data
       if not option.disabled and not option.empty
         if option.group
-          $(option.dom_id).hide()
+          this.winnow_option_group(option)
         else if not (@is_multiple and option.selected)
-          found = false
+          found = this.winnow_search_match(@regex, option.html)
+          
           result_id = option.dom_id
           
-          if regex.test option.html
-            found = true
+          if found or (option.group_array_index? && @results_data[option.group_array_index].search_match)
             results += 1
-          else if option.html.indexOf(" ") >= 0 or option.html.indexOf("[") == 0
-            #TODO: replace this substitution of /\[\]/ with a list of characters to skip.
-            parts = option.html.replace(/\[|\]/g, "").split(" ")
-            if parts.length
-              for part in parts
-                if regex.test part
-                  found = true
-                  results += 1
-
-          if found
-            if searchText.length
-              startpos = option.html.search zregex
-              text = option.html.substr(0, startpos + searchText.length) + '</em>' + option.html.substr(startpos + searchText.length)
-              text = text.substr(0, startpos) + '<em>' + text.substr(startpos)
+            
+            if @searchText.length and found
+              text = this.winnow_search_highlight_match(@zregex, option.html, @searchText.length)
             else
               text = option.html
 
@@ -414,11 +442,19 @@ class Chosen extends AbstractChosen
             this.result_clear_highlight() if $(result_id) is @result_highlight
             this.result_deactivate $(result_id)
 
-    if results < 1 and searchText.length
-      this.no_results(searchText)
+    if results < 1 and @searchText.length
+      this.no_results(@searchText)
     else
       this.winnow_results_set_highlight()
 
+  winnow_option_group: (group) ->
+    $("#{group.dom_id}").hide()
+    
+    group.search_match = this.winnow_search_match(@regex, group.label)
+    
+    text = if @searchText.length and group.search_match then this.winnow_search_highlight_match(@zregex, group.label, @searchText.length) else group.label
+    $("#{group.dom_id}").update(text)
+
   winnow_results_clear: ->
     @search_field.clear()
     lis = @search_results.select("li")

coffee/lib/abstract-chosen.coffee

@@ -8,9 +8,6 @@ class AbstractChosen
 
   constructor: (@form_field, @options={}) ->
     this.set_default_values()
-    
-    @is_multiple = @form_field.multiple
-    @default_text_default = if @is_multiple then "Select Some Options" else "Select an Option"
 
     this.setup()
 
@@ -20,6 +17,9 @@ class AbstractChosen
     this.finish_setup()
 
   set_default_values: ->
+    @is_multiple = @form_field.multiple
+    @default_text_default = if @is_multiple then "Select Some Options" else "Select an Option"
+    
     @click_test_action = (evt) => this.test_active_click(evt)
     @activate_action = (evt) => this.activate_field(evt)
     @active_field = false
@@ -27,8 +27,10 @@ class AbstractChosen
     @results_showing = false
     @result_highlighted = null
     @result_single_selected = null
+    @enable_group_select = @options.enable_group_select || false
     @allow_single_deselect = if @options.allow_single_deselect? and @form_field.options[0]? and @form_field.options[0].text is "" then @options.allow_single_deselect else false
     @disable_search_threshold = @options.disable_search_threshold || 0
+    @enable_select_all = if @options.enable_select_all? and @is_multiple then @options.enable_select_all else false
     @choices = 0
     @results_none_found = @options.no_results_text or "No results match"
 
@@ -75,6 +77,24 @@ class AbstractChosen
     else
       this.results_show()
 
+  winnow_search_match: (regex, optionText) ->
+    found = false
+    if regex.test optionText
+      found = true
+    else if optionText.indexOf(" ") >= 0 or optionText.indexOf("[") == 0
+      #TODO: replace this substitution of /\[\]/ with a list of characters to skip.
+      parts = optionText.replace(/\[|\]/g, "").split(" ")
+      if parts.length
+        for part in parts
+          if regex.test part
+            found = true
+    return found
+
+  winnow_search_highlight_match: (regex, optionText, searchTextLength) ->
+    startpos = optionText.search regex
+    text = optionText.substr(0, startpos + searchTextLength) + '</em>' + optionText.substr(startpos + searchTextLength)
+    text = text.substr(0, startpos) + '<em>' + text.substr(startpos)
+
   keyup_checker: (evt) ->
     stroke = evt.which ? evt.keyCode
     this.search_field_scale()
@@ -95,6 +115,8 @@ class AbstractChosen
       when 9, 38, 40, 16, 91, 17
         # don't do anything on these keys
       else this.results_search()
+    
+    this.select_all_toggle() if @enable_select_all
 
   generate_field_id: ->
     new_id = this.generate_random_id()