/*!
 * Feature Carousel, Version 1.0
 * http://www.bkosolutions.com
 *
 * Copyright 2010 Brian Osborne
 * Licensed under GPL version 3
 *
 * http://www.gnu.org/licenses/gpl.txt
 */
(function($){$.fn.featureCarousel=function(options){options=$.extend({},$.fn.featureCarousel.defaults,options||{});return $(this).each(function(){var pluginData={currentCenterNum:options.startingFeature,containerWidth:0,containerHeight:0,largeFeatureWidth:0,largeFeatureHeight:0,smallFeatureWidth:0,smallFeatureHeight:0,totalFeatureCount:$(this).children("div").length,currentlyMoving:false,featuresContainer:$(this),featuresArray:[],containerIDTag:"#"+$(this).attr("id"),timeoutVar:null,rotationsRemaining:0,itemsToAnimate:0,borderWidth:0};preload(function(){setupFeatureDimensions();setupCarousel();setupFeaturePositions();setupBlips();initiateMove(true,1)});function preload(callback){if(options.preload==true){var $imageElements=pluginData.featuresContainer.find("img");var loadedImages=0;var totalImages=$imageElements.length;$imageElements.each(function(){$(this).load(function(){loadedImages++;if(loadedImages==totalImages){callback()}});if(this.complete){$(this).trigger('load')}})}else{callback()}}function getContainer(featureNum){return pluginData.featuresArray[featureNum-1]}function getBySetPos(position){$.each(pluginData.featuresArray,function(){if($(this).data().setPosition==position)return $(this)})}function getPreviousNum(num){if((num-1)==0){return pluginData.totalFeatureCount}else{return num-1}}function getNextNum(num){if((num+1)>pluginData.totalFeatureCount){return 1}else{return num+1}}function setupFeatureDimensions(){pluginData.containerWidth=pluginData.featuresContainer.width();pluginData.containerHeight=pluginData.featuresContainer.height();var $firstFeatureImage=$(pluginData.containerIDTag).find("div img:first");if(options.largeFeatureWidth>1)pluginData.largeFeatureWidth=options.largeFeatureWidth;else if(options.largeFeatureWidth>0&&options.largeFeatureWidth<1)pluginData.largeFeatureWidth=$firstFeatureImage.width()*options.largeFeatureWidth;else pluginData.largeFeatureWidth=$firstFeatureImage.outerWidth();if(options.largeFeatureHeight>1)pluginData.largeFeatureHeight=options.largeFeatureHeight;else if(options.largeFeatureHeight>0&&options.largeFeatureHeight<1)pluginData.largeFeatureHeight=$firstFeatureImage.height()*options.largeFeatureHeight;else pluginData.largeFeatureHeight=$firstFeatureImage.outerHeight();if(options.smallFeatureWidth>1)pluginData.smallFeatureWidth=options.smallFeatureWidth;else if(options.smallFeatureWidth>0&&options.smallFeatureWidth<1)pluginData.smallFeatureWidth=$firstFeatureImage.width()*options.smallFeatureWidth;else pluginData.smallFeatureWidth=$firstFeatureImage.outerWidth()/2;if(options.smallFeatureHeight>1)pluginData.smallFeatureHeight=options.smallFeatureHeight;else if(options.smallFeatureHeight>0&&options.smallFeatureHeight<1)pluginData.smallFeatureHeight=$firstFeatureImage.height()*options.smallFeatureHeight;else pluginData.smallFeatureHeight=$firstFeatureImage.outerHeight()/2}function setupCarousel(){if(options.displayCutoff>0&&options.displayCutoff<pluginData.totalFeatureCount){pluginData.totalFeatureCount=options.displayCutoff}pluginData.featuresContainer.children("div").each(function(index){if(index<pluginData.totalFeatureCount){pluginData.featuresArray[index]=$(this)}});if(pluginData.featuresContainer.children("div").first().css("borderLeftWidth")!="medium"){pluginData.borderWidth=parseInt(pluginData.featuresContainer.children("div").first().css("borderLeftWidth"))*2}pluginData.featuresContainer.children("div").each(function(){$(this).css({'left':(pluginData.containerWidth/2)-(pluginData.smallFeatureWidth/2)-(pluginData.borderWidth/2),'width':pluginData.smallFeatureWidth,'height':pluginData.smallFeatureHeight,'top':options.smallFeatureOffset+options.topPadding,'opacity':0})}).find("img:first").css({'width':pluginData.smallFeatureWidth});if(pluginData.totalFeatureCount<4){pluginData.itemsToAnimate=pluginData.totalFeatureCount}else{pluginData.itemsToAnimate=4}pluginData.featuresContainer.find("div > div").hide()}function setupFeaturePositions(){$.each(pluginData.featuresArray,function(i){$(this).data('setPosition',i+1)});var oneBeforeStarting=getPreviousNum(options.startingFeature);pluginData.currentCenterNum=oneBeforeStarting;var $centerFeature=getContainer(oneBeforeStarting);$centerFeature.data('position',1);var $prevFeatures=$centerFeature.prevAll();$prevFeatures.each(function(i){$(this).data('position',(pluginData.totalFeatureCount-i))});var $nextFeatures=$centerFeature.nextAll();$nextFeatures.each(function(i){if($(this).data('setPosition')!=undefined){$(this).data('position',(i+2))}});if(options.counterStyle==3){$.each(pluginData.featuresArray,function(){var pos=getPreviousNum($(this).data('position'));var $numberTag=$("<span></span>");$numberTag.addClass("numberTag");$numberTag.html("("+pos+" of "+pluginData.totalFeatureCount+") ");$(this).find('div p').prepend($numberTag)})}}function setupBlips(){if(options.counterStyle==1||options.counterStyle==2){var $list=$("<ul></ul>");$list.addClass("blipsContainer");for(var i=0;i<pluginData.totalFeatureCount;i++){var counter;if(options.counterStyle==2)counter="";else counter=i+1;var $blip=$("<div>"+counter+"</div>");$blip.addClass("blip");$blip.css("cursor","pointer");$blip.attr("id","blip_"+(i+1));var $listEntry=$("<li></li>");$listEntry.append($blip);$listEntry.css("float","left");$listEntry.css("list-style-type","none");$list.append($listEntry)}$(pluginData.containerIDTag).append($list);$list.hide().show()}}function changeBlip(oldCenter,newCenter){var $blipsContainer=pluginData.featuresContainer.find(".blipsContainer");var $oldCenter=$blipsContainer.find("#blip_"+oldCenter);var $newCenter=$blipsContainer.find("#blip_"+newCenter);$oldCenter.removeClass("blipSelected");$newCenter.addClass("blipSelected")}function autoPlay(){if(pluginData.timeoutVar!=null){pluginData.timeoutVar=clearTimeout(pluginData.timeoutVar)}if(options.autoPlay!=0){var autoTime=(Math.abs(options.autoPlay)<options.carouselSpeed)?options.carouselSpeed:Math.abs(options.autoPlay);pluginData.timeoutVar=setTimeout(function(){if(options.autoPlay>0)initiateMove(true,1);else if(options.autoPlay<0)initiateMove(false,1)},autoTime)}}function rotatePositions(direction){$.each(pluginData.featuresArray,function(){var newPos;if(direction==false){newPos=getNextNum($(this).data().position)}else{newPos=getPreviousNum($(this).data().position)}$(this).data('position',newPos)})}function animateFeature($feature,direction){var new_width,new_height,new_top,new_left,new_zindex,new_padding,new_fade;var oldPosition=$feature.data('position');var newPosition;if(direction==true)newPosition=getPreviousNum(oldPosition);else newPosition=getNextNum(oldPosition);if(newPosition==1){new_width=pluginData.largeFeatureWidth;new_height=pluginData.largeFeatureHeight;new_top=options.topPadding;new_zindex=$feature.css("z-index");new_left=(pluginData.containerWidth/2)-(pluginData.largeFeatureWidth/2)-(pluginData.borderWidth/2);new_fade=1.0}else{new_width=pluginData.smallFeatureWidth;new_height=pluginData.smallFeatureHeight;new_top=options.smallFeatureOffset+options.topPadding;new_zindex=1;new_fade=0.4;if(newPosition==pluginData.totalFeatureCount){new_left=options.sidePadding}else if(newPosition==2){new_left=pluginData.containerWidth-pluginData.smallFeatureWidth-options.sidePadding-pluginData.borderWidth}else{new_left=(pluginData.containerWidth/2)-(pluginData.smallFeatureWidth/2)-(pluginData.borderWidth/2);new_fade=0}}if(newPosition!=1){$feature.find("div").hide()}$feature.animate({width:new_width,height:new_height,top:new_top,left:new_left,opacity:new_fade},options.carouselSpeed,options.animationEasing,function(){if(newPosition==1){$feature.find("div").fadeTo("fast",0.85)}pluginData.rotationsRemaining=pluginData.rotationsRemaining-1;$feature.css("z-index",new_zindex);if(options.counterStyle==1||options.counterStyle==2){if(newPosition==1){var newCenterItemNum=pluginData.featuresContainer.children("div").index($feature)+1;var oldCenterItemNum;if(direction==false)oldCenterItemNum=getNextNum(newCenterItemNum);else oldCenterItemNum=getPreviousNum(newCenterItemNum);changeBlip(oldCenterItemNum,newCenterItemNum)}}var divide=pluginData.rotationsRemaining/pluginData.itemsToAnimate;if(divide%1==0){pluginData.currentlyMoving=false;rotatePositions(direction);if(pluginData.rotationsRemaining>0)move(direction)}autoPlay()}).find("img:first").animate({width:new_width,height:new_height},options.carouselSpeed,options.animationEasing).end()}function move(direction){pluginData.currentlyMoving=true;var $newCenter,$newLeft,$newRight,$newHidden;if(direction==true){$newCenter=getContainer(getNextNum(pluginData.currentCenterNum));$newLeft=getContainer(pluginData.currentCenterNum);$newRight=getContainer(getNextNum(getNextNum(pluginData.currentCenterNum)));$newHidden=getContainer(getPreviousNum(pluginData.currentCenterNum));pluginData.currentCenterNum=getNextNum(pluginData.currentCenterNum)}else{$newCenter=getContainer(getPreviousNum(pluginData.currentCenterNum));$newLeft=getContainer(getPreviousNum(getPreviousNum(pluginData.currentCenterNum)));$newRight=getContainer(pluginData.currentCenterNum);$newHidden=getContainer(getNextNum(pluginData.currentCenterNum));pluginData.currentCenterNum=getPreviousNum(pluginData.currentCenterNum)}if(direction){$newLeft.css("z-index",3)}else{$newRight.css("z-index",3)}$newCenter.css("z-index",4);animateFeature($newLeft,direction);animateFeature($newCenter,direction);animateFeature($newRight,direction);if(pluginData.totalFeatureCount>3){animateFeature($newHidden,direction)}}function initiateMove(direction,rotations){if(pluginData.currentlyMoving==false){var queue=rotations*pluginData.itemsToAnimate;pluginData.rotationsRemaining=queue;move(direction)}}function findShortestDistance(from,to){var goingToLeft=1,goingToRight=1,tracker;tracker=from;while((tracker=getPreviousNum(tracker))!=to){goingToLeft++}tracker=from;while((tracker=getNextNum(tracker))!=to){goingToRight++}return(goingToLeft<goingToRight)?goingToLeft*-1:goingToRight}$(".leftButton").click(function(){initiateMove(false,1)});$(".rightButton").click(function(){initiateMove(true,1)});pluginData.featuresContainer.children("div").click(function(){var position=$(this).data('position');if(position==2){initiateMove(true,1)}else if(position==pluginData.totalFeatureCount){initiateMove(false,1)}}).mouseover(function(){if(pluginData.currentlyMoving==false){var position=$(this).data('position');if(position==2||position==pluginData.totalFeatureCount){$(this).css("opacity",0.8)}}}).mouseout(function(){if(pluginData.currentlyMoving==false){var position=$(this).data('position');if(position==2||position==pluginData.totalFeatureCount){$(this).css("opacity",0.4)}}});$("a",pluginData.containerIDTag).live("click",function(event){var $parents=$(this).parentsUntil(pluginData.containerIDTag);$parents.each(function(){var position=$(this).data('position');if(position!=undefined){if(position!=1){if(position==pluginData.totalFeatureCount){initiateMove(false,1)}else if(position==2){initiateMove(true,1)}event.preventDefault();return false}}})});$(".blip").live("click",function(){var goTo=$(this).attr("id").substring(5);var whereIsIt=pluginData.featuresContainer.children("div").eq(goTo-1).data('position');var currentlyAt=pluginData.currentCenterNum;if(goTo!=currentlyAt){var shortest=findShortestDistance(1,whereIsIt);if(shortest<0){initiateMove(false,(shortest*-1))}else{initiateMove(true,shortest)}}})})};$.fn.featureCarousel.defaults={largeFeatureWidth:0,largeFeatureHeight:0,smallFeatureWidth:.5,smallFeatureHeight:.5,topPadding:20,sidePadding:30,smallFeatureOffset:50,startingFeature:1,carouselSpeed:1000,autoPlay:0,counterStyle:1,preload:true,displayCutoff:0,animationEasing:'swing'}})(jQuery);