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