/*
Chosen, a Select Box Enhancer for jQuery and Protoype
by Patrick Filler for Harvest, http://getharvest.com

Available for use under the MIT License, http://en.wikipedia.org/wiki/MIT_License

Copyright (c) 2011 by Harvest
*/
(function(){var $,Chosen,SelectParser,get_side_border_padding,root;var __bind=function(fn,me){return function(){return fn.apply(me,arguments);};};root=typeof exports!=="undefined"&&exports!==null?exports:this;$=jQuery;$.fn.extend({chosen:function(data,options){return $(this).each(function(input_field){if(!($(this)).hasClass("chzn-done")){return new Chosen(this,data,options);}});}});Chosen=(function(){function Chosen(elmn){this.set_default_values();this.form_field=elmn;this.form_field_jq=$(this.form_field);this.is_multiple=this.form_field.multiple;this.default_text_default=this.form_field.multiple?"Select Some Options":"Select an Option";this.set_up_html();this.register_observers();this.form_field_jq.addClass("chzn-done");}Chosen.prototype.set_default_values=function(){this.click_test_action=__bind(function(evt){return this.test_active_click(evt);},this);this.active_field=false;this.mouse_on_container=false;this.results_showing=false;this.result_highlighted=null;this.result_single_selected=null;return this.choices=0;};Chosen.prototype.set_up_html=function(){var container_div,dd_top,dd_width,sf_width;this.container_id=this.form_field.id+"_chzn";this.f_width=this.form_field_jq.width();this.default_text=this.form_field_jq.attr("title")?this.form_field_jq.attr("title"):this.default_text_default;container_div=$("<div />",{id:this.container_id,"class":"chzn-container",style:"width: "+this.f_width+"px;"});if(this.is_multiple){container_div.html('<ul class="chzn-choices"><li class="search-field"><input type="text" value="'+this.default_text+'" class="default" style="width:25px;" /></li></ul><div class="chzn-drop" style="left:-9000px;"><ul class="chzn-results"></ul></div>');}else{container_div.html('<a href="javascript:void(0)" class="chzn-single"><span>'+this.default_text+'</span><div><b></b></div></a><div class="chzn-drop" style="left:-9000px;"><div class="chzn-search"><input type="text" /></div><ul class="chzn-results"></ul></div>');}this.form_field_jq.hide().after(container_div);this.container=$("#"+this.container_id);this.container.addClass("chzn-container-"+(this.is_multiple?"multi":"single"));this.dropdown=this.container.find("div.chzn-drop").first();dd_top=this.container.height();dd_width=this.f_width-get_side_border_padding(this.dropdown);this.dropdown.css({width:dd_width+"px",top:dd_top+"px"});this.search_field=this.container.find("input").first();this.search_results=this.container.find("ul.chzn-results").first();this.search_field_scale();this.search_no_results=this.container.find("li.no-results").first();if(this.is_multiple){this.search_choices=this.container.find("ul.chzn-choices").first();this.search_container=this.container.find("li.search-field").first();}else{this.search_container=this.container.find("div.chzn-search").first();this.selected_item=this.container.find(".chzn-single").first();sf_width=dd_width-get_side_border_padding(this.search_container)-get_side_border_padding(this.search_field);this.search_field.css({width:sf_width+"px"});}this.results_build();return this.set_tab_index();};Chosen.prototype.register_observers=function(){this.container.click(__bind(function(evt){return this.container_click(evt);},this));this.container.mouseenter(__bind(function(evt){return this.mouse_enter(evt);},this));this.container.mouseleave(__bind(function(evt){return this.mouse_leave(evt);},this));this.search_results.click(__bind(function(evt){return this.search_results_click(evt);},this));this.search_results.mouseover(__bind(function(evt){return this.search_results_mouseover(evt);},this));this.search_results.mouseout(__bind(function(evt){return this.search_results_mouseout(evt);},this));this.form_field_jq.bind("liszt:updated",__bind(function(evt){return this.results_update_field(evt);},this));this.search_field.blur(__bind(function(evt){return this.input_blur(evt);},this));this.search_field.keyup(__bind(function(evt){return this.keyup_checker(evt);},this));this.search_field.keydown(__bind(function(evt){return this.keydown_checker(evt);},this));if(this.is_multiple){this.search_choices.click(__bind(function(evt){return this.choices_click(evt);},this));return this.search_field.focus(__bind(function(evt){return this.input_focus(evt);},this));}else{return this.selected_item.focus(__bind(function(evt){return this.activate_field(evt);},this));}};Chosen.prototype.container_click=function(evt){if(evt&&evt.type==="click"){evt.stopPropagation();}if(!this.pending_destroy_click){if(!this.active_field){if(this.is_multiple){this.search_field.val("");}$(document).click(this.click_test_action);this.results_show();}else{if(!this.is_multiple&&evt&&($(evt.target)===this.selected_item||$(evt.target).parents("a.chzn-single").length)){evt.preventDefault();this.results_toggle();}}return this.activate_field();}else{return this.pending_destroy_click=false;}};Chosen.prototype.mouse_enter=function(){return this.mouse_on_container=true;};Chosen.prototype.mouse_leave=function(){return this.mouse_on_container=false;};Chosen.prototype.input_focus=function(evt){if(!this.active_field){return setTimeout((__bind(function(){return this.container_click();},this)),50);}};Chosen.prototype.input_blur=function(evt){if(!this.mouse_on_container){this.active_field=false;return setTimeout((__bind(function(){return this.blur_test();},this)),100);}};Chosen.prototype.blur_test=function(evt){if(!this.active_field&&this.container.hasClass("chzn-container-active")){return this.close_field();}};Chosen.prototype.close_field=function(){$(document).unbind("click",this.click_test_action);if(!this.is_multiple){this.selected_item.attr("tabindex",this.search_field.attr("tabindex"));this.search_field.attr("tabindex",-1);}this.active_field=false;this.results_hide();this.container.removeClass("chzn-container-active");this.winnow_results_clear();this.clear_backstroke();this.show_search_field_default();return this.search_field_scale();};Chosen.prototype.activate_field=function(){if(!this.is_multiple&&!this.active_field){this.search_field.attr("tabindex",this.selected_item.attr("tabindex"));this.selected_item.attr("tabindex",-1);}this.container.addClass("chzn-container-active");this.active_field=true;this.search_field.val(this.search_field.val());return this.search_field.focus();};Chosen.prototype.test_active_click=function(evt){if($(evt.target).parents("#"+this.container.id).length){return this.active_field=true;}else{return this.close_field();}};Chosen.prototype.results_build=function(){var content,data,startTime,_i,_len,_ref;startTime=new Date();this.parsing=true;this.results_data=SelectParser.select_to_array(this.form_field);if(this.is_multiple&&this.choices>0){this.search_choices.find("li.search-choice").remove();this.choices=0;}else{if(!this.is_multiple){this.selected_item.find("span").text(this.default_text);}}content="";_ref=this.results_data;for(_i=0,_len=_ref.length;_i<_len;_i++){data=_ref[_i];if(data.group){content+=this.result_add_group(data);}else{if(!data.empty){content+=this.result_add_option(data);if(data.selected&&this.is_multiple){this.choice_build(data);}else{if(data.selected&&!this.is_multiple){this.selected_item.find("span").text(data.text);}}}}}this.show_search_field_default();this.search_field_scale();this.search_results.html(content);return this.parsing=false;};Chosen.prototype.result_add_group=function(group){if(!group.disabled){group.dom_id=this.form_field.id+"chzn_g_"+group.array_index;return'<li id="'+group.dom_id+'" class="group-result">'+$("<div />").text(group.label).html()+"</li>";}else{return"";}};Chosen.prototype.result_add_option=function(option){var classes;if(!option.disabled){option.dom_id=this.form_field.id+"chzn_o_"+option.array_index;classes=option.selected&&this.is_multiple?[]:["active-result"];if(option.selected){classes.push("result-selected");}if(option.group_array_index!=null){classes.push("group-option");}return'<li id="'+option.dom_id+'" class="'+classes.join(" ")+'">'+$("<div />").text(option.text).html()+"</li>";}else{return"";}};Chosen.prototype.results_update_field=function(){this.result_clear_highlight();this.result_single_selected=null;return this.results_build();};Chosen.prototype.result_do_highlight=function(el){var high_bottom,high_top,maxHeight,visible_bottom,visible_top;if(el.length){this.result_clear_highlight();this.result_highlight=el;this.result_highlight.addClass("highlighted");maxHeight=parseInt(this.search_results.css("maxHeight"),10);visible_top=this.search_results.scrollTop();visible_bottom=maxHeight+visible_top;high_top=this.result_highlight.position().top+this.search_results.scrollTop();high_bottom=high_top+this.result_highlight.outerHeight();if(high_bottom>=visible_bottom){return this.search_results.scrollTop((high_bottom-maxHeight)>0?high_bottom-maxHeight:0);}else{if(high_top<visible_top){return this.search_results.scrollTop(high_top);}}}};Chosen.prototype.result_clear_highlight=function(){if(this.result_highlight){this.result_highlight.removeClass("highlighted");}return this.result_highlight=null;};Chosen.prototype.results_toggle=function(){if(this.results_showing){return this.results_hide();}else{return this.results_show();}};Chosen.prototype.results_show=function(){var dd_top;if(!this.is_multiple){this.selected_item.addClass("chzn-single-with-drop");if(this.result_single_selected){this.result_do_highlight(this.result_single_selected);}}dd_top=this.is_multiple?this.container.height():this.container.height()-1;this.dropdown.css({top:dd_top+"px",left:0});this.results_showing=true;this.search_field.focus();this.search_field.val(this.search_field.val());return this.winnow_results();};Chosen.prototype.results_hide=function(){if(!this.is_multiple){this.selected_item.removeClass("chzn-single-with-drop");}this.result_clear_highlight();this.dropdown.css({left:"-9000px"});return this.results_showing=false;};Chosen.prototype.set_tab_index=function(el){var ti;if(this.form_field_jq.attr("tabindex")){ti=this.form_field_jq.attr("tabindex");this.form_field_jq.attr("tabindex",-1);if(this.is_multiple){return this.search_field.attr("tabindex",ti);}else{this.selected_item.attr("tabindex",ti);return this.search_field.attr("tabindex",-1);}}};Chosen.prototype.show_search_field_default=function(){if(this.is_multiple&&this.choices<1&&!this.active_field){this.search_field.val(this.default_text);return this.search_field.addClass("default");}else{this.search_field.val("");return this.search_field.removeClass("default");}};Chosen.prototype.search_results_click=function(evt){var target;target=$(evt.target).hasClass("active-result")?$(evt.target):$(evt.target).parents(".active-result").first();if(target.length){this.result_highlight=target;return this.result_select();}};Chosen.prototype.search_results_mouseover=function(evt){var target;target=$(evt.target).hasClass("active-result")?$(evt.target):$(evt.target).parents(".active-result").first();if(target){return this.result_do_highlight(target);}};Chosen.prototype.search_results_mouseout=function(evt){if($(evt.target).hasClass("active-result"||$(evt.target).parents(".active-result").first())){return this.result_clear_highlight();}};Chosen.prototype.choices_click=function(evt){evt.preventDefault();if(this.active_field&&!($(evt.target).hasClass("search-choice"||$(evt.target).parents(".search-choice").first))&&!this.results_showing){return this.results_show();}};Chosen.prototype.choice_build=function(item){var choice_id,link;choice_id=this.form_field.id+"_chzn_c_"+item.array_index;this.choices+=1;this.search_container.before('<li class="search-choice" id="'+choice_id+'"><span>'+item.text+'</span><a href="javascript:void(0)" class="search-choice-close" rel="'+item.array_index+'"></a></li>');link=$("#"+choice_id).find("a").first();return link.click(__bind(function(evt){return this.choice_destroy_link_click(evt);},this));};Chosen.prototype.choice_destroy_link_click=function(evt){evt.preventDefault();this.pending_destroy_click=true;return this.choice_destroy($(evt.target));};Chosen.prototype.choice_destroy=function(link){this.choices-=1;this.show_search_field_default();if(this.is_multiple&&this.choices>0&&this.search_field.val().length<1){this.results_hide();}this.result_deselect(link.attr("rel"));return link.parents("li").first().remove();};Chosen.prototype.result_select=function(){var high,high_id,item,position;if(this.result_highlight){high=this.result_highlight;high_id=high.attr("id");this.result_clear_highlight();high.addClass("result-selected");if(this.is_multiple){this.result_deactivate(high);}else{this.result_single_selected=high;}position=high_id.substr(high_id.lastIndexOf("_")+1);item=this.results_data[position];item.selected=true;this.form_field.options[item.options_index].selected=true;if(this.is_multiple){this.choice_build(item);}else{this.selected_item.find("span").first().text(item.text);}this.results_hide();this.search_field.val("");this.form_field_jq.trigger("change");return this.search_field_scale();}};Chosen.prototype.result_activate=function(el){return el.addClass("active-result").show();};Chosen.prototype.result_deactivate=function(el){return el.removeClass("active-result").hide();};Chosen.prototype.result_deselect=function(pos){var result,result_data;result_data=this.results_data[pos];result_data.selected=false;this.form_field.options[result_data.options_index].selected=false;result=$("#"+this.form_field.id+"chzn_o_"+pos);result.removeClass("result-selected").addClass("active-result").show();this.result_clear_highlight();this.winnow_results();this.form_field_jq.trigger("change");return this.search_field_scale();};Chosen.prototype.results_search=function(evt){if(this.results_showing){return this.winnow_results();}else{return this.results_show();}};Chosen.prototype.winnow_results=function(){var found,option,part,parts,regex,result_id,results,searchText,startTime,startpos,text,zregex,_i,_j,_len,_len2,_ref;startTime=new Date();this.no_results_clear();results=0;searchText=this.search_field.val()===this.default_text?"":$.trim(this.search_field.val());regex=new RegExp("^"+searchText.replace(/[-[\]{}()*+?.,\\^$|#\s]/g,"\\$&"),"i");zregex=new RegExp(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();}else{if(!(this.is_multiple&&option.selected)){found=false;result_id=option.dom_id;if(regex.test(option.text)){found=true;results+=1;}else{if(option.text.indexOf(" ")>=0||option.text.indexOf("[")===0){parts=option.text.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.text.search(zregex);text=option.text.substr(0,startpos+searchText.length)+"</em>"+option.text.substr(startpos+searchText.length);text=text.substr(0,startpos)+"<em>"+text.substr(startpos);}else{text=option.text;}if($("#"+result_id).html!==text){$("#"+result_id).html(text);}this.result_activate($("#"+result_id));if(option.group_array_index!=null){$("#"+this.results_data[option.group_array_index].dom_id).show();}}else{if(this.result_highlight&&result_id===this.result_highlight.attr("id")){this.result_clear_highlight();}this.result_deactivate($("#"+result_id));}}}}}if(results<1&&searchText.length){return this.no_results(searchText);}else{return this.winnow_results_set_highlight();}};Chosen.prototype.winnow_results_clear=function(){var li,lis,_i,_len,_results;this.search_field.val("");lis=this.search_results.find("li");_results=[];for(_i=0,_len=lis.length;_i<_len;_i++){li=lis[_i];li=$(li);_results.push(li.hasClass("group-result")?li.show():!this.is_multiple||!li.hasClass("result-selected")?this.result_activate(li):void 0);}return _results;};Chosen.prototype.winnow_results_set_highlight=function(){var do_high;if(!this.result_highlight){do_high=this.search_results.find(".active-result").first();if(do_high){return this.result_do_highlight(do_high);}}};Chosen.prototype.no_results=function(terms){var no_results_html;no_results_html=$('<li class="no-results">No results match "<span></span>"</li>');no_results_html.find("span").first().text(terms);return this.search_results.append(no_results_html);};Chosen.prototype.no_results_clear=function(){return this.search_results.find(".no-results").remove();};Chosen.prototype.keydown_arrow=function(){var first_active,next_sib;if(!this.result_highlight){first_active=this.search_results.find("li.active-result").first();if(first_active){this.result_do_highlight($(first_active));}}else{if(this.results_showing){next_sib=this.result_highlight.nextAll("li.active-result").first();if(next_sib){this.result_do_highlight(next_sib);}}}if(!this.results_showing){return this.results_show();}};Chosen.prototype.keyup_arrow=function(){var prev_sibs;if(!this.results_showing&&!this.is_multiple){return this.results_show();}else{if(this.result_highlight){prev_sibs=this.result_highlight.prevAll("li.active-result");if(prev_sibs.length){return this.result_do_highlight(prev_sibs.first());}else{if(this.choices>0){this.results_hide();}return this.result_clear_highlight();}}}};Chosen.prototype.keydown_backstroke=function(){if(this.pending_backstroke){this.choice_destroy(this.pending_backstroke.find("a").first());return this.clear_backstroke();}else{this.pending_backstroke=this.search_container.siblings("li.search-choice").last();return this.pending_backstroke.addClass("search-choice-focus");}};Chosen.prototype.clear_backstroke=function(){if(this.pending_backstroke){this.pending_backstroke.removeClass("search-choice-focus");}return this.pending_backstroke=null;};Chosen.prototype.keyup_checker=function(evt){var stroke,_ref;stroke=(_ref=evt.which)!=null?_ref:evt.keyCode;this.search_field_scale();switch(stroke){case 8:if(this.is_multiple&&this.backstroke_length<1&&this.choices>0){return this.keydown_backstroke();}else{if(!this.pending_backstroke){this.result_clear_highlight();return this.results_search();}}break;case 13:evt.preventDefault();if(this.results_showing){return this.result_select();}break;case 27:if(this.results_showing){return this.results_hide();}break;case 9:case 38:case 40:case 16:break;default:return this.results_search();}};Chosen.prototype.keydown_checker=function(evt){var stroke,_ref;stroke=(_ref=evt.which)!=null?_ref:evt.keyCode;this.search_field_scale();if(stroke!==8&&this.pending_backstroke){this.clear_backstroke();}switch(stroke){case 8:this.backstroke_length=this.search_field.val().length;break;case 9:this.mouse_on_container=false;break;case 13:evt.preventDefault();break;case 38:evt.preventDefault();this.keyup_arrow();break;case 40:this.keydown_arrow();break;}};Chosen.prototype.search_field_scale=function(){var dd_top,div,h,style,style_block,styles,w,_i,_len;if(this.is_multiple){h=0;w=0;style_block="position:absolute; left: -1000px; top: -1000px; display:none;";styles=["font-size","font-style","font-weight","font-family","line-height","text-transform","letter-spacing"];for(_i=0,_len=styles.length;_i<_len;_i++){style=styles[_i];style_block+=style+":"+this.search_field.css(style)+";";}div=$("<div />",{style:style_block});div.text(this.search_field.val());$("body").append(div);w=div.width()+25;div.remove();if(w>this.f_width-10){w=this.f_width-10;}this.search_field.css({width:w+"px"});dd_top=this.container.height();return this.dropdown.css({top:dd_top+"px"});}};return Chosen;})();get_side_border_padding=function(elmt){var side_border_padding;return side_border_padding=elmt.outerWidth()-elmt.width();};root.get_side_border_padding=get_side_border_padding;SelectParser=(function(){function SelectParser(){this.options_index=0;this.parsed=[];}SelectParser.prototype.add_node=function(child){if(child.nodeName==="OPTGROUP"){return this.add_group(child);}else{return this.add_option(child);}};SelectParser.prototype.add_group=function(group){var group_position,option,_i,_len,_ref,_results;group_position=this.parsed.length;this.parsed.push({array_index:group_position,group:true,label:group.label,children:0,disabled:group.disabled});_ref=group.childNodes;_results=[];for(_i=0,_len=_ref.length;_i<_len;_i++){option=_ref[_i];_results.push(this.add_option(option,group_position,group.disabled));}return _results;};SelectParser.prototype.add_option=function(option,group_position,group_disabled){if(option.nodeName==="OPTION"){if(option.text!==""){if(group_position!=null){this.parsed[group_position].children+=1;}this.parsed.push({array_index:this.parsed.length,options_index:this.options_index,value:option.value,text:option.text,selected:option.selected,disabled:group_disabled===true?group_disabled:option.disabled,group_array_index:group_position});}else{this.parsed.push({array_index:this.parsed.length,options_index:this.options_index,empty:true});}return this.options_index+=1;}};return SelectParser;})();SelectParser.select_to_array=function(select){var child,parser,_i,_len,_ref;parser=new SelectParser();_ref=select.childNodes;for(_i=0,_len=_ref.length;_i<_len;_i++){child=_ref[_i];parser.add_node(child);}return parser.parsed;};root.SelectParser=SelectParser;}).call(this);