/** jshint forin:true, noarg:true, noempty:true, eqeqeq:true, boss:true, undef:true, curly:true, browser:true, jquery:true */
/*
* jQuery MultiSelect UI Widget 1.13
* Copyright (c) 2012 Eric Hynds
*
* http://www.erichynds.com/jquery/jquery-ui-multiselect-widget/
*
* Depends:
* - jQuery 1.4.2+
* - jQuery UI 1.8 widget factory
*
* Optional:
* - jQuery UI effects
* - jQuery UI position utility
*
* Dual licensed under the MIT and GPL licenses:
* http://www.opensource.org/licenses/mit-license.php
* http://www.gnu.org/licenses/gpl.html
*
*/

(function($,undefined){var multiselectID=0;$.widget("ech.multiselect",{options:{header:true,height:175,minWidth:225,classes:"",checkAllText:"Check all",uncheckAllText:"Uncheck all",noneSelectedText:selectoption,selectedText:"# "+selected,selectedList:0,show:null,hide:null,autoOpen:false,multiple:true,position:{}},_create:function(){var el=this.element.hide(),o=this.options;this.speed=$.fx.speeds._default;this._isOpen=false;var button=(this.button=$('<button type="button"><span class="ui-icon ui-icon-triangle-2-n-s"></span></button>')).addClass("ui-multiselect ui-widget ui-state-default ui-corner-all").addClass(o.classes).attr({title:el.attr("title"),"aria-haspopup":true,tabIndex:el.attr("tabIndex")}).insertAfter(el),buttonlabel=(this.buttonlabel=$("<span />")).html(o.noneSelectedText).appendTo(button),menu=(this.menu=$("<div />")).addClass("ui-multiselect-menu ui-widget ui-widget-content ui-corner-all").addClass(o.classes).appendTo(document.body),header=(this.header=$("<div />")).addClass("ui-widget-header ui-corner-all ui-multiselect-header ui-helper-clearfix").appendTo(menu),headerLinkContainer=(this.headerLinkContainer=$("<ul />")).addClass("ui-helper-reset").html(function(){if(o.header===true){return'<li><a class="ui-multiselect-all" href="#"><span class="ui-icon ui-icon-check"></span><span>'+o.checkAllText+'</span></a></li><li><a class="ui-multiselect-none" href="#"><span class="ui-icon ui-icon-closethick"></span><span>'+o.uncheckAllText+"</span></a></li>";}else{if(typeof o.header==="string"){return"<li>"+o.header+"</li>";}else{return"";}}}).append('<li class="ui-multiselect-close"><a href="#" class="ui-multiselect-close"><span class="ui-icon ui-icon-circle-close"></span></a></li>').appendTo(header),checkboxContainer=(this.checkboxContainer=$("<ul />")).addClass("ui-multiselect-checkboxes ui-helper-reset").appendTo(menu);this._bindEvents();this.refresh(true);if(!o.multiple){menu.addClass("ui-multiselect-single");}},_init:function(){if(this.options.header===false){this.header.hide();}if(!this.options.multiple){this.headerLinkContainer.find(".ui-multiselect-all, .ui-multiselect-none").hide();}if(this.options.autoOpen){this.open();}if(this.element.is(":disabled")){this.disable();}},refresh:function(init){var el=this.element,o=this.options,menu=this.menu,checkboxContainer=this.checkboxContainer,optgroups=[],html="",id=el.attr("id")||multiselectID++;el.find("option").each(function(i){var $this=$(this),parent=this.parentNode,title=this.innerHTML,description=this.title,value=this.value,inputID="ui-multiselect-"+(this.id||id+"-option-"+i),isDisabled=this.disabled,isSelected=this.selected,labelClasses=["ui-corner-all"],liClasses=(isDisabled?"ui-multiselect-disabled ":" ")+this.className,optLabel;if(parent.tagName==="OPTGROUP"){optLabel=parent.getAttribute("label");if($.inArray(optLabel,optgroups)===-1){html+='<li class="ui-multiselect-optgroup-label '+parent.className+'"><a href="#">'+optLabel+"</a></li>";optgroups.push(optLabel);}}if(isDisabled){labelClasses.push("ui-state-disabled");}if(isSelected&&!o.multiple){labelClasses.push("ui-state-active");}html+='<li class="'+liClasses+'">';html+='<label for="'+inputID+'" title="'+description+'" class="'+labelClasses.join(" ")+'">';html+='<input id="'+inputID+'" name="multiselect_'+id+'" type="'+(o.multiple?"checkbox":"radio")+'" value="'+value+'" title="'+title+'"';if(isSelected){html+=' checked="checked"';html+=' aria-selected="true"';}if(isDisabled){html+=' disabled="disabled"';html+=' aria-disabled="true"';}html+=" /><span>"+title+"</span></label></li>";});checkboxContainer.html(html);this.labels=menu.find("label");this.inputs=this.labels.children("input");this._setButtonWidth();this._setMenuWidth();this.button[0].defaultValue=this.update();if(!init){this._trigger("refresh");}},update:function(){var o=this.options,$inputs=this.inputs,$checked=$inputs.filter(":checked"),numChecked=$checked.length,value;if(numChecked===0){value=o.noneSelectedText;}else{if($.isFunction(o.selectedText)){value=o.selectedText.call(this,numChecked,$inputs.length,$checked.get());}else{if(/\d/.test(o.selectedList)&&o.selectedList>0&&numChecked<=o.selectedList){value=$checked.map(function(){return $(this).next().html();}).get().join(", ");}else{value=o.selectedText.replace("#",numChecked).replace("#",$inputs.length);}}}this.buttonlabel.html(value);return value;},_bindEvents:function(){var self=this,button=this.button;function clickHandler(){self[self._isOpen?"close":"open"]();return false;}button.find("span").bind("click.multiselect",clickHandler);button.bind({click:clickHandler,keypress:function(e){switch(e.which){case 27:case 38:case 37:self.close();break;case 39:case 40:self.open();break;}},mouseenter:function(){if(!button.hasClass("ui-state-disabled")){$(this).addClass("ui-state-hover");}},mouseleave:function(){$(this).removeClass("ui-state-hover");},focus:function(){if(!button.hasClass("ui-state-disabled")){$(this).addClass("ui-state-focus");}},blur:function(){$(this).removeClass("ui-state-focus");}});this.header.delegate("a","click.multiselect",function(e){if($(this).hasClass("ui-multiselect-close")){self.close();}else{self[$(this).hasClass("ui-multiselect-all")?"checkAll":"uncheckAll"]();}e.preventDefault();});this.menu.delegate("li.ui-multiselect-optgroup-label a","click.multiselect",function(e){e.preventDefault();var $this=$(this),$inputs=$this.parent().nextUntil("li.ui-multiselect-optgroup-label").find("input:visible:not(:disabled)"),nodes=$inputs.get(),label=$this.parent().text();if(self._trigger("beforeoptgrouptoggle",e,{inputs:nodes,label:label})===false){return;}self._toggleChecked($inputs.filter(":checked").length!==$inputs.length,$inputs);self._trigger("optgrouptoggle",e,{inputs:nodes,label:label,checked:nodes[0].checked});}).delegate("label","mouseenter.multiselect",function(){if(!$(this).hasClass("ui-state-disabled")){self.labels.removeClass("ui-state-hover");$(this).addClass("ui-state-hover").find("input").focus();}}).delegate("label","keydown.multiselect",function(e){e.preventDefault();switch(e.which){case 9:case 27:self.close();break;case 38:case 40:case 37:case 39:self._traverse(e.which,this);break;case 13:$(this).find("input")[0].click();break;}}).delegate('input[type="checkbox"], input[type="radio"]',"click.multiselect",function(e){var $this=$(this),val=this.value,checked=this.checked,tags=self.element.find("option");if(this.disabled||self._trigger("click",e,{value:val,text:this.title,checked:checked})===false){e.preventDefault();return;}$this.focus();$this.attr("aria-selected",checked);tags.each(function(){if(this.value===val){this.selected=checked;}else{if(!self.options.multiple){this.selected=false;}}});if(!self.options.multiple){self.labels.removeClass("ui-state-active");$this.closest("label").toggleClass("ui-state-active",checked);self.close();}self.element.trigger("change");setTimeout($.proxy(self.update,self),10);});$(document).bind("mousedown.multiselect",function(e){if(self._isOpen&&!$.contains(self.menu[0],e.target)&&!$.contains(self.button[0],e.target)&&e.target!==self.button[0]){self.close();}});$(this.element[0].form).bind("reset.multiselect",function(){setTimeout($.proxy(self.refresh,self),10);});},_setButtonWidth:function(){var width=this.element.outerWidth(),o=this.options;if(/\d/.test(o.minWidth)&&width<o.minWidth){width=o.minWidth;}this.button.width(width);},_setMenuWidth:function(){var m=this.menu,width=this.button.outerWidth()-parseInt(m.css("padding-left"),10)-parseInt(m.css("padding-right"),10)-parseInt(m.css("border-right-width"),10)-parseInt(m.css("border-left-width"),10);m.width(width||this.button.outerWidth());},_traverse:function(which,start){var $start=$(start),moveToLast=which===38||which===37,$next=$start.parent()[moveToLast?"prevAll":"nextAll"]("li:not(.ui-multiselect-disabled, .ui-multiselect-optgroup-label)")[moveToLast?"last":"first"]();if(!$next.length){var $container=this.menu.find("ul").last();this.menu.find("label")[moveToLast?"last":"first"]().trigger("mouseover");$container.scrollTop(moveToLast?$container.height():0);}else{$next.find("label").trigger("mouseover");}},_toggleState:function(prop,flag){return function(){if(!this.disabled){this[prop]=flag;}if(flag){this.setAttribute("aria-selected",true);}else{this.removeAttribute("aria-selected");}};},_toggleChecked:function(flag,group){var $inputs=(group&&group.length)?group:this.inputs,self=this;$inputs.each(this._toggleState("checked",flag));$inputs.eq(0).focus();this.update();var values=$inputs.map(function(){return this.value;}).get();this.element.find("option").each(function(){if(!this.disabled&&$.inArray(this.value,values)>-1){self._toggleState("selected",flag).call(this);}});if($inputs.length){this.element.trigger("change");}},_toggleDisabled:function(flag){this.button.attr({disabled:flag,"aria-disabled":flag})[flag?"addClass":"removeClass"]("ui-state-disabled");var inputs=this.menu.find("input");var key="ech-multiselect-disabled";if(flag){inputs=inputs.filter(":enabled").data(key,true);}else{inputs=inputs.filter(function(){return $.data(this,key)===true;}).removeData(key);}inputs.attr({disabled:flag,"arial-disabled":flag}).parent()[flag?"addClass":"removeClass"]("ui-state-disabled");this.element.attr({disabled:flag,"aria-disabled":flag});},open:function(e){var self=this,button=this.button,menu=this.menu,speed=this.speed,o=this.options,args=[];if(this._trigger("beforeopen")===false||button.hasClass("ui-state-disabled")||this._isOpen){return;}var $container=menu.find("ul").last(),effect=o.show,pos=button.offset();if($.isArray(o.show)){effect=o.show[0];speed=o.show[1]||self.speed;}if(effect){args=[effect,speed];}$container.scrollTop(0).height(o.height);if($.ui.position&&!$.isEmptyObject(o.position)){o.position.of=o.position.of||button;menu.show().position(o.position).hide();}else{menu.css({top:pos.top+button.outerHeight(),left:pos.left});}$.fn.show.apply(menu,args);this.labels.eq(0).trigger("mouseover").trigger("mouseenter").find("input").trigger("focus");button.addClass("ui-state-active");this._isOpen=true;this._trigger("open");},close:function(){if(this._trigger("beforeclose")===false){return;}var o=this.options,effect=o.hide,speed=this.speed,args=[];if($.isArray(o.hide)){effect=o.hide[0];speed=o.hide[1]||this.speed;}if(effect){args=[effect,speed];}$.fn.hide.apply(this.menu,args);this.button.removeClass("ui-state-active").trigger("blur").trigger("mouseleave");this._isOpen=false;this._trigger("close");},enable:function(){this._toggleDisabled(false);},disable:function(){this._toggleDisabled(true);},checkAll:function(e){this._toggleChecked(true);this._trigger("checkAll");},uncheckAll:function(){this._toggleChecked(false);this._trigger("uncheckAll");},getChecked:function(){return this.menu.find("input").filter(":checked");},destroy:function(){$.Widget.prototype.destroy.call(this);this.button.remove();this.menu.remove();this.element.show();return this;},isOpen:function(){return this._isOpen;},widget:function(){return this.menu;},getButton:function(){return this.button;},_setOption:function(key,value){var menu=this.menu;switch(key){case"header":menu.find("div.ui-multiselect-header")[value?"show":"hide"]();break;case"checkAllText":menu.find("a.ui-multiselect-all span").eq(-1).text(value);break;case"uncheckAllText":menu.find("a.ui-multiselect-none span").eq(-1).text(value);break;case"height":menu.find("ul").last().height(parseInt(value,10));break;case"minWidth":this.options[key]=parseInt(value,10);this._setButtonWidth();this._setMenuWidth();break;case"selectedText":case"selectedList":case"noneSelectedText":this.options[key]=value;this.update();break;case"classes":menu.add(this.button).removeClass(this.options.classes).addClass(value);break;case"multiple":menu.toggleClass("ui-multiselect-single",!value);this.options.multiple=value;this.element[0].multiple=value;this.refresh();}$.Widget.prototype._setOption.apply(this,arguments);}});})(jQuery);