(function($){"use strict";var defaults,internalData,methods;$.extend({roundaboutShapes:{def:"lazySusan",lazySusan:function(r,a,t){return{x:Math.sin(r+a),y:(Math.sin(r+3*Math.PI/2+a)/8)*t,z:(Math.cos(r+a)+1)/2,scale:(Math.sin(r+Math.PI/2+a)/2)+0.5}}}});defaults={bearing:0.0,tilt:0.0,minZ:100,maxZ:280,minOpacity:0.4,maxOpacity:1.0,minScale:0.4,maxScale:1.0,duration:600,btnNext:null,btnNextCallback:function(){},btnPrev:null,btnPrevCallback:function(){},btnToggleAutoplay:null,btnStartAutoplay:null,btnStopAutoplay:null,easing:"swing",clickToFocus:true,clickToFocusCallback:function(){},focusBearing:0.0,shape:"lazySusan",debug:false,childSelector:"li",startingChild:null,reflect:false,floatComparisonThreshold:0.001,autoplay:false,autoplayDuration:1000,autoplayPauseOnHover:false,autoplayCallback:function(){},enableDrag:false,dropDuration:600,dropEasing:"swing",dropAnimateTo:"nearest",dropCallback:function(){},dragAxis:"x",dragFactor:4,triggerFocusEvents:true,triggerBlurEvents:true};internalData={autoplayInterval:null,autoplayIsRunning:false,animating:false,childInFocus:-1,touchMoveStartPosition:null,stopAnimation:false,lastAnimationStep:false};methods={init:function(options,callback){var settings,now=(new Date()).getTime();options=(typeof options==="object")?options:{};callback=($.isFunction(callback))?callback:function(){};callback=($.isFunction(options))?options:callback;settings=$.extend({},defaults,options,internalData);return this.each(function(){var self=$(this),childCount=self.children(settings.childSelector).length,period=360.0/childCount,startingChild=(settings.startingChild&&settings.startingChild>(childCount-1))?(childCount-1):settings.startingChild,startBearing=(settings.startingChild===null)?settings.bearing:360-(startingChild*period),holderCSSPosition=(self.css("position")!=="static")?self.css("position"):"relative";self.css({padding:0,position:holderCSSPosition,zIndex:settings.minZ}).addClass("roundabout-holder").data("roundabout",$.extend({},settings,{startingChild:startingChild,bearing:startBearing,oppositeOfFocusBearing:methods.normalize.apply(null,[settings.focusBearing-180]),dragBearing:startBearing,period:period}));if(settings.clickToFocus){self.children(settings.childSelector).each(function(i){$(this).bind("click",function(){var degrees=methods.getPlacement.apply(self,[i]);if(!methods.isInFocus.apply(self,[degrees])){methods.stopAnimation.apply($(this));if(!self.data("roundabout").animating){methods.animateAngleToFocus.apply(self,[degrees,self.data("roundabout").clickToFocusCallback])}return false}});var eraCaption=jQuery(this).find('img').attr('alt');jQuery(this).append('<h3 class="era-slider-caption">'+eraCaption+'</h3>')})}if(settings.btnNext){$(settings.btnNext).bind("click",function(){if(!self.data("roundabout").animating){methods.animateToNextChild.apply(self,[self.data("roundabout").btnNextCallback])}return false})}if(settings.btnPrev){$(settings.btnPrev).bind("click",function(){methods.animateToPreviousChild.apply(self,[self.data("roundabout").btnPrevCallback]);return false})}if(settings.btnToggleAutoplay){$(settings.btnToggleAutoplay).bind("click",function(){methods.toggleAutoplay.apply(self);return false})}if(settings.btnStartAutoplay){$(settings.btnStartAutoplay).bind("click",function(){methods.startAutoplay.apply(self);return false})}if(settings.btnStopAutoplay){$(settings.btnStopAutoplay).bind("click",function(){methods.stopAutoplay.apply(self);return false})}if(settings.autoplayPauseOnHover){self.bind("mouseenter",function(){methods.stopAutoplay.apply(self)}).bind("mouseleave",function(){methods.startAutoplay.apply(self)})}if(settings.enableDrag){if(!$.isFunction(self.drag)){if(settings.debug){alert("You do not have the drag plugin loaded.")}}else if(!$.isFunction(self.drop)){if(settings.debug){alert("You do not have the drop plugin loaded.")}}else{self.drag(function(e,properties){var data=self.data("roundabout"),delta=(data.dragAxis.toLowerCase()==="x")?"deltaX":"deltaY";methods.stopAnimation.apply(self);methods.setBearing.apply(self,[data.dragBearing+properties[delta]/data.dragFactor])}).drop(function(e){var data=self.data("roundabout"),method=methods.getAnimateToMethod(data.dropAnimateTo);methods.allowAnimation.apply(self);methods[method].apply(self,[data.dropDuration,data.dropEasing,data.dropCallback]);data.dragBearing=data.period*methods.getNearestChild.apply(self)})}self.each(function(){var element=$(this).get(0),data=$(this).data("roundabout"),page=(data.dragAxis.toLowerCase()==="x")?"pageX":"pageY",method=methods.getAnimateToMethod(data.dropAnimateTo);if(element.addEventListener){element.addEventListener("touchstart",function(e){data.touchMoveStartPosition=e.touches[0][page]},false);element.addEventListener("touchmove",function(e){var delta=(e.touches[0][page]-data.touchMoveStartPosition)/data.dragFactor;e.preventDefault();methods.stopAnimation.apply($(this));methods.setBearing.apply($(this),[data.dragBearing+delta])},false);element.addEventListener("touchend",function(e){e.preventDefault();methods.allowAnimation.apply($(this));method=methods.getAnimateToMethod(data.dropAnimateTo);methods[method].apply($(this),[data.dropDuration,data.dropEasing,data.dropCallback]);data.dragBearing=data.period*methods.getNearestChild.apply($(this))},false)}})}methods.initChildren.apply(self,[callback])})},initChildren:function(callback){var self=$(this),data=self.data("roundabout");callback=callback||function(){};self.children(data.childSelector).each(function(i){var startWidth,startHeight,startFontSize,degrees=methods.getPlacement.apply(self,[i]);if(typeof $(this).data("roundabout")==="object"){startWidth=$(this).data("roundabout").startWidth;startHeight=$(this).data("roundabout").startHeight;startFontSize=$(this).data("roundabout").startFontSize}$(this).addClass("roundabout-moveable-item").css("position","absolute");$(this).data("roundabout",{startWidth:startWidth||$(this).width(),startHeight:startHeight||$(this).height(),startFontSize:startFontSize||parseInt($(this).css("font-size"),10),degrees:degrees,backDegrees:methods.normalize.apply(null,[degrees-180]),childNumber:i,currentScale:1,parent:self})});methods.updateChildren.apply(self);if(data.autoplay){methods.startAutoplay.apply(self)}self.trigger('ready');callback.apply(self);return self},updateChildren:function(){return this.each(function(){var self=$(this),data=self.data("roundabout"),inFocus=-1,info={bearing:data.bearing,tilt:data.tilt,stage:{width:Math.floor($(this).width()*0.9),height:Math.floor($(this).height()*0.9)},animating:data.animating,inFocus:data.childInFocus,focusBearingRadian:methods.degToRad.apply(null,[data.focusBearing]),shape:$.roundaboutShapes[data.shape]||$.roundaboutShapes[$.roundaboutShapes.def]};info.midStage={width:info.stage.width/2,height:info.stage.height/2};info.nudge={width:info.midStage.width+(info.stage.width*0.05),height:info.midStage.height+(info.stage.height*0.05)};info.zValues={min:data.minZ,max:data.maxZ,diff:data.maxZ-data.minZ};info.opacity={min:data.minOpacity,max:data.maxOpacity,diff:data.maxOpacity-data.minOpacity};info.scale={min:data.minScale,max:data.maxScale,diff:data.maxScale-data.minScale};self.children(data.childSelector).each(function(i){if(methods.updateChild.apply(self,[$(this),info,i,function(){$(this).trigger('ready')}])&&(!info.animating||data.lastAnimationStep)){inFocus=i;$(this).addClass("roundabout-in-focus").find('h3.era-slider-caption').delay(200).fadeIn(400);jQuery('li.thumbs ul li').each(function(){if(jQuery(this).hasClass(jQuery('.roundabout-in-focus').index())){jQuery('li.thumbs ul li').removeClass('active');jQuery(this).addClass('active')}})}else{$(this).removeClass("roundabout-in-focus").find('h3.era-slider-caption').fadeOut(400)}});if(inFocus!==info.inFocus){if(data.triggerBlurEvents){self.children(data.childSelector).eq(info.inFocus).trigger("blur")}data.childInFocus=inFocus;if(data.triggerFocusEvents&&inFocus!==-1){self.children(data.childSelector).eq(inFocus).trigger("focus")}}self.trigger("childrenUpdated")})},updateChild:function(childElement,info,childPos,callback){var factors,self=this,child=$(childElement),data=child.data("roundabout"),out=[],rad=methods.degToRad.apply(null,[(360.0-data.degrees)+info.bearing]);callback=callback||function(){};rad=methods.normalizeRad.apply(null,[rad]);factors=info.shape(rad,info.focusBearingRadian,info.tilt);factors.scale=(factors.scale>1)?1:factors.scale;factors.adjustedScale=(info.scale.min+(info.scale.diff*factors.scale)).toFixed(4);factors.width=(factors.adjustedScale*data.startWidth).toFixed(4);factors.height=(factors.adjustedScale*data.startHeight).toFixed(4);child.css({left:((factors.x*info.midStage.width+info.nudge.width)-factors.width/2.0).toFixed(0)+"px",top:((factors.y*info.midStage.height+info.nudge.height)-factors.height/2.0).toFixed(0)+"px",width:factors.width+"px",height:factors.height+"px",opacity:(info.opacity.min+(info.opacity.diff*factors.scale)).toFixed(2),zIndex:Math.round(info.zValues.min+(info.zValues.diff*factors.z)),fontSize:(factors.adjustedScale*data.startFontSize).toFixed(0)+"px"});data.currentScale=factors.adjustedScale;if(self.data("roundabout").debug){out.push("<div style=\"font-weight: normal; font-size: 10px; padding: 2px; width: "+child.css("width")+"; background-color: #ffc;\">");out.push("<strong style=\"font-size: 12px; white-space: nowrap;\">Child "+childPos+"</strong><br />");out.push("<strong>left:</strong> "+child.css("left")+"<br />");out.push("<strong>top:</strong> "+child.css("top")+"<br />");out.push("<strong>width:</strong> "+child.css("width")+"<br />");out.push("<strong>opacity:</strong> "+child.css("opacity")+"<br />");out.push("<strong>height:</strong> "+child.css("height")+"<br />");out.push("<strong>z-index:</strong> "+child.css("z-index")+"<br />");out.push("<strong>font-size:</strong> "+child.css("font-size")+"<br />");out.push("<strong>scale:</strong> "+child.data("roundabout").currentScale);out.push("</div>");child.html(out.join(""))}child.trigger("reposition");callback.apply(self);return methods.isInFocus.apply(self,[data.degrees])},setBearing:function(bearing,callback){callback=callback||function(){};bearing=methods.normalize.apply(null,[bearing]);this.each(function(){var diff,lowerValue,higherValue,self=$(this),data=self.data("roundabout"),oldBearing=data.bearing;data.bearing=bearing;self.trigger("bearingSet");methods.updateChildren.apply(self);diff=Math.abs(oldBearing-bearing);if(!data.animating||diff>180){return}diff=Math.abs(oldBearing-bearing);self.children(data.childSelector).each(function(i){var eventType;if(methods.isChildBackDegreesBetween.apply($(this),[bearing,oldBearing])){eventType=(oldBearing>bearing)?"Clockwise":"Counterclockwise";$(this).trigger("move"+eventType+"ThroughBack")}})});callback.apply(this);return this},adjustBearing:function(delta,callback){callback=callback||function(){};if(delta===0){return this}this.each(function(){methods.setBearing.apply($(this),[$(this).data("roundabout").bearing+delta])});callback.apply(this);return this},setTilt:function(tilt,callback){callback=callback||function(){};this.each(function(){$(this).data("roundabout").tilt=tilt;methods.updateChildren.apply($(this))});callback.apply(this);return this},adjustTilt:function(delta,callback){callback=callback||function(){};this.each(function(){methods.setTilt.apply($(this),[$(this).data("roundabout").tilt+delta])});callback.apply(this);return this},animateToBearing:function(bearing,duration,easing,passedData,callback){var now=(new Date()).getTime();callback=callback||function(){};if($.isFunction(passedData)){callback=passedData;passedData=null}else if($.isFunction(easing)){callback=easing;easing=null}else if($.isFunction(duration)){callback=duration;duration=null}this.each(function(){var timer,easingFn,newBearing,self=$(this),data=self.data("roundabout"),thisDuration=(!duration)?data.duration:duration,thisEasingType=(easing)?easing:data.easing||"swing";if(!passedData){passedData={timerStart:now,start:data.bearing,totalTime:thisDuration}}timer=now-passedData.timerStart;if(data.stopAnimation){methods.allowAnimation.apply(self);data.animating=false;return}if(timer<thisDuration){if(!data.animating){self.trigger("animationStart")}data.animating=true;if(typeof $.easing.def==="string"){easingFn=$.easing[thisEasingType]||$.easing[$.easing.def];newBearing=easingFn(null,timer,passedData.start,bearing-passedData.start,passedData.totalTime)}else{newBearing=$.easing[thisEasingType]((timer/passedData.totalTime),timer,passedData.start,bearing-passedData.start,passedData.totalTime)}newBearing=methods.normalize.apply(null,[newBearing]);data.dragBearing=newBearing;methods.setBearing.apply(self,[newBearing,function(){setTimeout(function(){methods.animateToBearing.apply(self,[bearing,thisDuration,thisEasingType,passedData,callback])},0)}])}else{if(data.animating){self.trigger("animationEnd")}data.lastAnimationStep=true;bearing=methods.normalize.apply(null,[bearing]);methods.setBearing.apply(self,[bearing]);data.animating=false;data.lastAnimationStep=false;data.dragBearing=bearing;callback.apply(self)}});return this},animateToNearbyChild:function(passedArgs,which){var duration=passedArgs[0],easing=passedArgs[1],callback=passedArgs[2]||function(){};if($.isFunction(easing)){callback=easing;easing=null}else if($.isFunction(duration)){callback=duration;duration=null}return this.each(function(){var j,range,self=$(this),data=self.data("roundabout"),bearing=(!data.reflect)?data.bearing%360:data.bearing,length=self.children(data.childSelector).length;if(!data.animating){if((data.reflect&&which==="previous")||(!data.reflect&&which==="next")){bearing=(Math.abs(bearing)<data.floatComparisonThreshold)?360:bearing;for(j=0;j<length;j+=1){range={lower:(data.period*j),upper:(data.period*(j+1))};range.upper=(j===length-1)?360:range.upper;if(bearing<=Math.ceil(range.upper)&&bearing>=Math.floor(range.lower)){if(length===2&&bearing===360){methods.animateToDelta.apply(self,[-180,duration,easing,callback])}else{methods.animateAngleToFocus.apply(self,[range.lower,duration,easing,callback])}break}}}else{bearing=(Math.abs(bearing)<data.floatComparisonThreshold||360-Math.abs(bearing)<data.floatComparisonThreshold)?0:bearing;for(j=length-1;j>=0;j-=1){range={lower:data.period*j,upper:data.period*(j+1)};range.upper=(j===length-1)?360:range.upper;if(bearing>=Math.floor(range.lower)&&bearing<Math.ceil(range.upper)){if(length===2&&bearing===360){methods.animateToDelta.apply(self,[180,duration,easing,callback])}else{methods.animateAngleToFocus.apply(self,[range.upper,duration,easing,callback])}break}}}}})},animateToNearestChild:function(duration,easing,callback){callback=callback||function(){};if($.isFunction(easing)){callback=easing;easing=null}else if($.isFunction(duration)){callback=duration;duration=null}return this.each(function(){var nearest=methods.getNearestChild.apply($(this));methods.animateToChild.apply($(this),[nearest,duration,easing,callback])})},animateToChild:function(childPosition,duration,easing,callback){callback=callback||function(){};if($.isFunction(easing)){callback=easing;easing=null}else if($.isFunction(duration)){callback=duration;duration=null}return this.each(function(){var child,self=$(this),data=self.data("roundabout");if(data.childInFocus!==childPosition&&!data.animating){child=self.children(data.childSelector).eq(childPosition);methods.animateAngleToFocus.apply(self,[child.data("roundabout").degrees,duration,easing,callback])}})},animateToNextChild:function(duration,easing,callback){return methods.animateToNearbyChild.apply(this,[arguments,"next"])},animateToPreviousChild:function(duration,easing,callback){return methods.animateToNearbyChild.apply(this,[arguments,"previous"])},animateToDelta:function(degrees,duration,easing,callback){callback=callback||function(){};if($.isFunction(easing)){callback=easing;easing=null}else if($.isFunction(duration)){callback=duration;duration=null}return this.each(function(){var delta=$(this).data("roundabout").bearing+degrees;methods.animateToBearing.apply($(this),[delta,duration,easing,callback])})},animateAngleToFocus:function(degrees,duration,easing,callback){callback=callback||function(){};if($.isFunction(easing)){callback=easing;easing=null}else if($.isFunction(duration)){callback=duration;duration=null}return this.each(function(){var delta=$(this).data("roundabout").bearing-degrees;delta=(Math.abs(360-delta)<Math.abs(delta))?360-delta:-delta;delta=(delta>180)?-(360-delta):delta;if(delta!==0){methods.animateToDelta.apply($(this),[delta,duration,easing,callback])}})},stopAnimation:function(){return this.each(function(){$(this).data("roundabout").stopAnimation=true})},allowAnimation:function(){return this.each(function(){$(this).data("roundabout").stopAnimation=false})},startAutoplay:function(callback){return this.each(function(){var self=$(this),data=self.data("roundabout");callback=callback||data.autoplayCallback||function(){};clearInterval(data.autoplayInterval);data.autoplayInterval=setInterval(function(){methods.animateToNextChild.apply(self,[callback])},data.autoplayDuration);data.autoplayIsRunning=true;self.trigger("autoplayStart")})},stopAutoplay:function(){return this.each(function(){clearInterval($(this).data("roundabout").autoplayInterval);$(this).data("roundabout").autoplayInterval=null;$(this).data("roundabout").autoplayIsRunning=false;$(this).trigger("autoplayStop")})},toggleAutoplay:function(callback){return this.each(function(){var self=$(this),data=self.data("roundabout");callback=callback||data.autoplayCallback||function(){};if(!methods.isAutoplaying.apply($(this))){methods.startAutoplay.apply($(this),[callback])}else{methods.stopAutoplay.apply($(this),[callback])}})},isAutoplaying:function(){return(this.data("roundabout").autoplayIsRunning)},changeAutoplayDuration:function(duration){return this.each(function(){var self=$(this),data=self.data("roundabout");data.autoplayDuration=duration;if(methods.isAutoplaying.apply(self)){methods.stopAutoplay.apply(self);setTimeout(function(){methods.startAutoplay.apply(self)},10)}})},normalize:function(degrees){var inRange=degrees%360.0;return(inRange<0)?360+inRange:inRange},normalizeRad:function(radians){while(radians<0){radians+=(Math.PI*2)}while(radians>(Math.PI*2)){radians-=(Math.PI*2)}return radians},isChildBackDegreesBetween:function(value1,value2){var backDegrees=$(this).data("roundabout").backDegrees;if(value1>value2){return(backDegrees>=value2&&backDegrees<value1)}else{return(backDegrees<value2&&backDegrees>=value1)}},getAnimateToMethod:function(effect){effect=effect.toLowerCase();if(effect==="next"){return"animateToNextChild"}else if(effect==="previous"){return"animateToPreviousChild"}return"animateToNearestChild"},relayoutChildren:function(){return this.each(function(){var self=$(this),settings=$.extend({},self.data("roundabout"));settings.startingChild=self.data("roundabout").childInFocus;methods.init.apply(self,[settings])})},getNearestChild:function(){var self=$(this),data=self.data("roundabout"),length=self.children(data.childSelector).length;if(!data.reflect){return((length)-(Math.round(data.bearing/data.period)%length))%length}else{return(Math.round(data.bearing/data.period)%length)}},degToRad:function(degrees){return methods.normalize.apply(null,[degrees])*Math.PI/180.0},getPlacement:function(child){var data=this.data("roundabout");return(!data.reflect)?360.0-(data.period*child):data.period*child},isInFocus:function(degrees){var diff,self=this,data=self.data("roundabout"),bearing=methods.normalize.apply(null,[data.bearing]);degrees=methods.normalize.apply(null,[degrees]);diff=Math.abs(bearing-degrees);return(diff<=data.floatComparisonThreshold||diff>=360-data.floatComparisonThreshold)}};$.fn.roundabout=function(method){if(methods[method]){return methods[method].apply(this,Array.prototype.slice.call(arguments,1))}else if(typeof method==="object"||$.isFunction(method)||!method){return methods.init.apply(this,arguments)}else{$.error("Method "+method+" does not exist for jQuery.roundabout.")}}})(jQuery);