2017-01-30 14:38:24 -07:00
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define(["browser","layoutManager","dom","focusManager","scrollStyles"],function(browser,layoutManager,dom,focusManager){"use strict";function type(value){return null==value?String(value):"object"==typeof value||"function"==typeof value?Object.prototype.toString.call(value).match(/\s([a-z]+)/i)[1].toLowerCase()||"object":typeof value}function disableOneEvent(event){event.preventDefault(),event.stopPropagation(),this.removeEventListener(event.type,disableOneEvent)}function within(number,min,max){return number<min?min:number>max?max:number}var dragMouseEvents=["mousemove","mouseup"],dragTouchEvents=["touchmove","touchend"],wheelEvent=document.implementation.hasFeature("Event.wheel","3.0")?"wheel":"mousewheel",interactiveElements=["INPUT","SELECT","TEXTAREA"],abs=Math.abs,sqrt=Math.sqrt,pow=Math.pow,round=Math.round,max=Math.max,scrollerFactory=(Math.min,function(frame,options){function sibling(n,elem){for(var matched=[];n;n=n.nextSibling)1===n.nodeType&&n!==elem&&matched.push(n);return matched}function load(isInit){frameSize=getWidthOrHeight(frameElement,o.horizontal?"width":"height");var slideeSize=o.scrollWidth||Math.max(slideeElement[o.horizontal?"offsetWidth":"offsetHeight"],slideeElement[o.horizontal?"scrollWidth":"scrollHeight"]);pos.start=0,pos.end=max(slideeSize-frameSize,0),isInit||slideTo(within(pos.dest,pos.start,pos.end))}function getWidthOrHeight(elem,name,extra){var valueIsBorderBox=!0,val="width"===name?elem.offsetWidth:elem.offsetHeight,styles=getComputedStyle(elem,null),isBorderBox="border-box"===styles.getPropertyValue("box-sizing");if(val<=0||null==val){if((val<0||null==val)&&(val=elem.style[name]),rnumnonpx.test(val))return val;valueIsBorderBox=isBorderBox&&(support.boxSizingReliable()||val===elem.style[name]),val=parseFloat(val)||0}return val+augmentWidthOrHeight(elem,name,extra||(isBorderBox?"border":"content"),valueIsBorderBox,styles)}function augmentWidthOrHeight(elem,name,extra,isBorderBox,styles){for(var i=extra===(isBorderBox?"border":"content")?4:"width"===name?1:0,val=0;i<4;i+=2);return val}function nativeScrollTo(container,pos,immediate){!immediate&&container.scrollTo?o.horizontal?container.scrollTo(pos,0):container.scrollTo(0,pos):o.horizontal?container.scrollLeft=Math.round(pos):container.scrollTop=Math.round(pos)}function slideTo(newPos,immediate){return newPos=within(newPos,pos.start,pos.end),transform?(animation.from=pos.cur,animation.to=newPos,animation.tweesing=dragging.tweese||dragging.init&&!dragging.slidee,animation.immediate=!animation.tweesing&&(immediate||dragging.init&&dragging.slidee||!o.speed),dragging.tweese=0,void(newPos!==pos.dest&&(pos.dest=newPos,renderAnimate(animation)))):void nativeScrollTo(slideeElement,newPos,immediate)}function renderAnimate(){var obj=getComputedStyle(slideeElement,null).getPropertyValue("transform").match(/([-+]?(?:\d*\.)?\d+)\D*, ([-+]?(?:\d*\.)?\d+)\D*\)/);obj&&(pos.cur=parseInt(o.horizontal?obj[1]:obj[2])*-1);var keyframes;animation.to=round(animation.to),keyframes=o.horizontal?[{transform:"translate3d("+-round(pos.cur||animation.from)+"px, 0, 0)",offset:0},{transform:"translate3d("+-round(animation.to)+"px, 0, 0)",offset:1}]:[{transform:"translate3d(0, "+-round(pos.cur||animation.from)+"px, 0)",offset:0},{transform:"translate3d(0, "+-round(animation.to)+"px, 0)",offset:1}];var speed=o.speed;animation.immediate&&(speed=o.immediateSpeed||50,browser.animate||(o.immediateSpeed=0));var animationConfig={duration:speed,iterations:1,fill:"both"};browser.animate&&(animationConfig.easing="ease-out");var animationInstance=slideeElement.animate(keyframes,animationConfig);animationInstance.onfinish=function(){pos.cur=animation.to,document.dispatchEvent(scrollEvent)}}function getBoundingClientRect(elem){return elem.getBoundingClientRect?elem.getBoundingClientRect():{top:0,left:0}}function to(location,item,immediate){if("boolean"===type(item)&&(immediate=item,item=void 0),void 0===item)slideTo(pos[location],immediate);else{var itemPos=self.getPos(item);itemPos&&slideTo(itemPos[location],immediate,!0)}}function continuousInit(source){dragging.released=0,draggin
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