/* jQuery UI Accordion 1.8.2
 * Copyright (c) 2010 AUTHORS.txt (http://jqueryui.com/about)
 * Dual licensed under the MIT (MIT-LICENSE.txt) and GPL (GPL-LICENSE.txt) licenses. */
(function($){
$.widget("ui.accordion",{options:{active:0,animated:'slide',autoHeight:true,clearStyle:false,collapsible:false,event:"click",fillSpace:false,
header:"> li > :first-child,> :not(li):even",icons:{header:"ui-icon-triangle-1-e",headerSelected:"ui-icon-triangle-1-s"},
navigation:false,navigationFilter:function(){return this.href.toLowerCase()==location.href.toLowerCase();}
},
_create:function(){
var o=this.options,self=this;this.running=0;
this.element.addClass("ui-accordion ui-widget ui-helper-reset");this.element.children("li").addClass("ui-accordion-li-fix");
this.headers=this.element.find(o.header).addClass("ui-accordion-header ui-helper-reset ui-state-default ui-corner-all")
.bind("mouseenter.accordion",function(){$(this).addClass('ui-state-hover');}).bind("mouseleave.accordion",function(){$(this).removeClass('ui-state-hover');}).bind("focus.accordion",function(){$(this).addClass('ui-state-focus');}).bind("blur.accordion",function(){$(this).removeClass('ui-state-focus');});
this.headers.next().addClass("ui-accordion-content ui-helper-reset ui-widget-content ui-corner-bottom");
if(o.navigation){
var current=this.element.find("a").filter(o.navigationFilter);
if(current.length){var header=current.closest(".ui-accordion-header");if(header.length){this.active=header;}else{this.active=current.closest(".ui-accordion-content").prev();}}
}
this.active=this._findActive(this.active||o.active).toggleClass("ui-state-default").toggleClass("ui-state-active").toggleClass("ui-corner-all").toggleClass("ui-corner-top");
this.active.next().addClass('ui-accordion-content-active');this._createIcons();this.resize();this.element.attr('role','tablist');
this.headers.attr('role','tab').bind('keydown',function(event){return self._keydown(event);}).next().attr('role','tabpanel');
this.headers.not(this.active||"").attr('aria-expanded','false').attr("tabIndex","-1").next().hide();
if(!this.active.length){this.headers.eq(0).attr('tabIndex','0');}else{this.active.attr('aria-expanded','true').attr('tabIndex','0');}
if(!$.browser.safari){this.headers.find('a').attr('tabIndex','-1');}
if(o.event){this.headers.bind((o.event)+".accordion",function(event){self._clickHandler.call(self,event,this);event.preventDefault();});}
},
_createIcons:function(){var o=this.options;if(o.icons){$("<span/>").addClass("ui-icon "+o.icons.header).prependTo(this.headers);this.active.find(".ui-icon").toggleClass(o.icons.header).toggleClass(o.icons.headerSelected);this.element.addClass("ui-accordion-icons");}},
_destroyIcons:function(){this.headers.children(".ui-icon").remove();this.element.removeClass("ui-accordion-icons");},
destroy:function(){var o=this.options;
this.element.removeClass("ui-accordion ui-widget ui-helper-reset").removeAttr("role").unbind('.accordion').removeData('accordion');
this.headers.unbind(".accordion").removeClass("ui-accordion-header ui-helper-reset ui-state-default ui-corner-all ui-state-active ui-corner-top").removeAttr("role").removeAttr("aria-expanded").removeAttr("tabIndex");
this.headers.find("a").removeAttr("tabIndex");this._destroyIcons();var contents=this.headers.next().css("display","").removeAttr("role").removeClass("ui-helper-reset ui-widget-content ui-corner-bottom ui-accordion-content ui-accordion-content-active");
if(o.autoHeight||o.fillHeight){contents.css("height","");}
return this;
},
_setOption:function(key,value){
$.Widget.prototype._setOption.apply(this,arguments);
if(key=="active"){this.activate(value);}
if(key=="icons"){this._destroyIcons();if(value){this._createIcons();}}
},
_keydown:function(event){
var o=this.options,keyCode=$.ui.keyCode;
if(o.disabled||event.altKey||event.ctrlKey){return;}
var length=this.headers.length;var currentIndex=this.headers.index(event.target);var toFocus=false;
switch(event.keyCode){
case keyCode.RIGHT:
case keyCode.DOWN:toFocus=this.headers[(currentIndex+1)%length];break;
case keyCode.LEFT:
case keyCode.UP:toFocus=this.headers[(currentIndex-1+length)%length];break;
case keyCode.SPACE:
case keyCode.ENTER:this._clickHandler({target:event.target },event.target);event.preventDefault();
}
if(toFocus){$(event.target).attr('tabIndex','-1');$(toFocus).attr('tabIndex','0');toFocus.focus();return false;}
return true;
},
resize:function(){
var o=this.options,maxHeight;
if(o.fillSpace){
if($.browser.msie){var defOverflow=this.element.parent().css('overflow');this.element.parent().css('overflow','hidden');}
maxHeight=this.element.parent().height();
if($.browser.msie){this.element.parent().css('overflow',defOverflow);}
this.headers.each(function(){maxHeight-=$(this).outerHeight(true);});
this.headers.next().each(function(){$(this).height(Math.max(0,maxHeight-$(this).innerHeight()+$(this).height()));}).css('overflow','auto');
}
else if(o.autoHeight){maxHeight=0;this.headers.next().each(function(){maxHeight=Math.max(maxHeight,$(this).height());}).height(maxHeight);}
return this;
},
activate:function(index){this.options.active=index;var active=this._findActive(index)[0];this._clickHandler({target:active},active);return this;},
_findActive:function(selector){return selector?typeof selector=="number"?this.headers.filter(":eq("+selector+")"):this.headers.not(this.headers.not(selector)):selector===false?$([]):this.headers.filter(":eq(0)");},
_clickHandler:function(event,target){
var o=this.options;
if(o.disabled){return;}
if (!event.target){
if(!o.collapsible){return;}
this.active.removeClass("ui-state-active ui-corner-top").addClass("ui-state-default ui-corner-all").find(".ui-icon").removeClass(o.icons.headerSelected).addClass(o.icons.header);
this.active.next().addClass('ui-accordion-content-active');
var toHide=this.active.next(),data={options:o,newHeader:$([]),oldHeader:o.active,newContent:$([]),oldContent:toHide},
toShow=(this.active=$([]));this._toggle(toShow,toHide,data);return;
}
var clicked=$(event.currentTarget||target);var clickedIsActive=clicked[0]==this.active[0];
o.active=o.collapsible&&clickedIsActive?false:$('.ui-accordion-header',this.element).index(clicked);
if(this.running||(!o.collapsible&&clickedIsActive)){return;}
this.active.removeClass("ui-state-active ui-corner-top").addClass("ui-state-default ui-corner-all").find(".ui-icon").removeClass(o.icons.headerSelected).addClass(o.icons.header);
if(!clickedIsActive){clicked.removeClass("ui-state-default ui-corner-all").addClass("ui-state-active ui-corner-top").find(".ui-icon").removeClass(o.icons.header).addClass(o.icons.headerSelected);clicked.next().addClass('ui-accordion-content-active');}
var toShow=clicked.next(),toHide=this.active.next(),
data={options:o,newHeader:clickedIsActive&&o.collapsible?$([]):clicked,oldHeader:this.active,newContent:clickedIsActive&&o.collapsible?$([]):toShow,oldContent:toHide},
down=this.headers.index(this.active[0])>this.headers.index(clicked[0]);
this.active=clickedIsActive?$([]):clicked;this._toggle(toShow,toHide,data,clickedIsActive,down);
return;
},
_toggle:function(toShow,toHide,data,clickedIsActive,down){
var o=this.options,self=this;this.toShow=toShow;this.toHide=toHide;this.data=data;
var complete=function(){if(!self)return;return self._completed.apply(self,arguments);};
this._trigger("changestart",null,this.data);this.running=toHide.size()===0?toShow.size():toHide.size();
if(o.animated){
var animOptions={};
if(o.collapsible&&clickedIsActive){animOptions={toShow:$([]),toHide:toHide,complete:complete,down:down,autoHeight:o.autoHeight||o.fillSpace};}
else{animOptions={toShow:toShow,toHide:toHide,complete:complete,down:down,autoHeight:o.autoHeight||o.fillSpace};}
if(!o.proxied){o.proxied=o.animated;}
if(!o.proxiedDuration){o.proxiedDuration=o.duration;}
o.animated=$.isFunction(o.proxied)?o.proxied(animOptions):o.proxied;
o.duration=$.isFunction(o.proxiedDuration)?o.proxiedDuration(animOptions):o.proxiedDuration;
var animations=$.ui.accordion.animations,duration=o.duration,easing=o.animated;
if(easing&&!animations[easing]&&!$.easing[easing]){easing='slide';}
if(!animations[easing]){animations[easing]=function(options){this.slide(options,{easing:easing,duration:duration||700});};}
animations[easing](animOptions);
}else{
if(o.collapsible&&clickedIsActive){toShow.toggle();}else{toHide.hide();toShow.show();}
complete(true);
}
toHide.prev().attr('aria-expanded','false').attr("tabIndex","-1").blur();toShow.prev().attr('aria-expanded','true').attr("tabIndex","0").focus();
},
_completed:function(cancel){
var o=this.options;this.running=cancel?0:--this.running;
if(this.running)return;
if(o.clearStyle){this.toShow.add(this.toHide).css({height:"",overflow:""});}
this.toHide.removeClass("ui-accordion-content-active");this._trigger('change',null,this.data);
}
});
$.extend($.ui.accordion,{
version:"1.8.2",animations:{slide:function(options,additions){options=$.extend({easing:"swing",duration:300},options,additions);
if(!options.toHide.size()){options.toShow.animate({height:"show"},options);return;}
if(!options.toShow.size()){options.toHide.animate({height:"hide"},options);return;}
var overflow=options.toShow.css('overflow'),percentDone=0,showProps={},hideProps={},fxAttrs=["height","paddingTop","paddingBottom" ],originalWidth;var s=options.toShow;originalWidth=s[0].style.width;
s.width(parseInt(s.parent().width(),10)-parseInt(s.css("paddingLeft"),10)-parseInt(s.css("paddingRight"),10)-(parseInt(s.css("borderLeftWidth"),10)||0)-(parseInt(s.css("borderRightWidth"),10)||0));
$.each(fxAttrs,function(i,prop){
hideProps[prop]='hide';var parts=(''+$.css(options.toShow[0],prop)).match(/^([\d+-.]+)(.*)$/);showProps[prop]={value:parts[1],unit:parts[2]||'px'};
});
options.toShow.css({height:0,overflow:'hidden'}).show();
options.toHide.filter(":hidden").each(options.complete).end().filter(":visible").animate(hideProps,{
step:function(now,settings){
if(settings.prop=='height'){percentDone=(settings.end-settings.start===0)?0:(settings.now-settings.start)/(settings.end-settings.start);}
options.toShow[0].style[settings.prop]=(percentDone*showProps[settings.prop].value)+showProps[settings.prop].unit;
},
duration:options.duration,easing:options.easing,
complete:function(){
if(!options.autoHeight){options.toShow.css("height","");}
options.toShow.css("width",originalWidth);options.toShow.css({overflow:overflow});options.complete();
}
});
},
bounceslide:function(options){this.slide(options,{easing:options.down?"easeOutBounce":"swing",duration:options.down?1000:200});}
}
});
})(jQuery);