@xysfe/actui/lib/Scroll/index.js

A fantastic mobile ui lib implement by Vue

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e=arguments.length>1&&void 0!==arguments[1]?arguments[1]:"click",o=void 0;"mouseup"===t.type||"mousecancel"===t.type?o=t:"touchend"!==t.type&&"touchcancel"!==t.type||(o=t.changedTouches[0]);var s={};o&&(s.screenX=o.screenX||0,s.screenY=o.screenY||0,s.clientX=o.clientX||0,s.clientY=o.clientY||0);var r=void 0,a=!0,h=!0;if("undefined"!=typeof MouseEvent)try{r=new MouseEvent(e,n({bubbles:a,cancelable:h},s))}catch(t){i()}else i();r.forwardedTouchEvent=!0,r._constructed=!0,t.target.dispatchEvent(r)}function g(t){m(t,"dblclick")}function v(t,i){i.firstChild?y(t,i.firstChild):i.appendChild(t)}function y(t,i){i.parentNode.insertBefore(t,i)}function b(t,i){t.removeChild(i)}function x(t,i,e,o,n,s,r){var a=t-i,h=Math.abs(a)/e,l=r.deceleration,c=r.itemHeight,p=r.swipeBounceTime,u=r.wheel,f=r.swipeTime,d=f,m=u?4:15,g=t+h/l*(a<0?-1:1);return u&&c&&(g=Math.round(g/c)*c),g<o?(g=s?Math.max(o-s/4,o-s/m*h):o,d=p):g>n&&(g=s?Math.min(n+s/4,n+s/m*h):n,d=p),{destination:Math.round(g),duration:d}}function S(){}function w(t){console.error("[BScroll warn]: "+t)}function T(t,i){if(!t)throw new Error("[BScroll] "+i)}function _(t){var i=document.createElement("div"),e=document.createElement("div");return i.style.cssText="position:absolute;z-index:9999;pointerEvents:none",e.style.cssText="box-sizing:border-box;position:absolute;background:rgba(0,0,0,0.5);border:1px solid rgba(255,255,255,0.9);border-radius:3px;",e.className="bscroll-indicator","horizontal"===t?(i.style.cssText+=";height:7px;left:2px;right:2px;bottom:0",e.style.height="100%",i.className="bscroll-horizontal-scrollbar"):(i.style.cssText+=";width:7px;bottom:2px;top:2px;right:1px",e.style.width="100%",i.className="bscroll-vertical-scrollbar"),i.style.cssText+=";overflow:hidden",i.appendChild(e),i}function M(t,i){this.wrapper=i.el,this.wrapperStyle=this.wrapper.style,this.indicator=this.wrapper.children[0],this.indicatorStyle=this.indicator.style,this.scroller=t,this.direction=i.direction,i.fade?(this.visible=0,this.wrapperStyle.opacity="0"):this.visible=1,this.sizeRatioX=1,this.sizeRatioY=1,this.maxPosX=0,this.maxPosY=0,this.x=0,this.y=0,i.interactive&&this._addDOMEvents()}function P(t){if(t&&t.classList)return t.classList.contains("tombstone")}function Y(t,i){var e=this;this.options=i,T("function"==typeof this.options.createTombstone,"Infinite scroll need createTombstone Function to create tombstone"),T("function"==typeof this.options.fetch,"Infinite scroll need fetch Function to fetch new data."),T("function"==typeof this.options.render,"Infinite scroll need render Function to render each item."),this.firstAttachedItem=0,this.lastAttachedItem=0,this.anchorScrollTop=0,this.anchorItem={index:0,offset:0},this.tombstoneHeight=0,this.tombstoneWidth=0,this.tombstones=[],this.items=[],this.loadedItems=0,this.requestInProgress=!1,this.hasMore=!0,this.scroller=t,this.wrapperEl=this.scroller.wrapper,this.scrollerEl=this.scroller.scroller,this.scroller.on("scroll",function(){e.onScroll()}),this.scroller.on("resize",function(){e.onResize()}),this.onResize()}function X(t,i){this.wrapper="string"==typeof t?document.querySelector(t):t,this.wrapper||w("Can not resolve the wrapper DOM."),this.scroller=this.wrapper.children[0],this.scroller||w("The wrapper need at least one child element to be scroller."),this.scrollerStyle=this.scroller.style,this._init(t,i)}var E=function(){function t(t,i){var e=[],o=!0,n=!1,s=void 0;try{for(var 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L,R={transform:W,transitionTimingFunction:a("transitionTimingFunction"),transitionDuration:a("transitionDuration"),transitionDelay:a("transitionDelay"),transformOrigin:a("transformOrigin"),transitionEnd:a("transitionEnd")},F=1,B={touchstart:F,touchmove:F,touchend:F,mousedown:2,mousemove:2,mouseup:2},U={startX:0,startY:0,scrollX:!1,scrollY:!0,freeScroll:!1,directionLockThreshold:5,eventPassthrough:"",click:!1,tap:!1,bounce:!0,bounceTime:800,momentum:!0,momentumLimitTime:300,momentumLimitDistance:15,swipeTime:2500,swipeBounceTime:500,deceleration:.0015,flickLimitTime:200,flickLimitDistance:100,resizePolling:60,probeType:0,preventDefault:!0,preventDefaultException:{tagName:/^(INPUT|TEXTAREA|BUTTON|SELECT)$/},HWCompositing:!0,useTransition:!0,useTransform:!0,bindToWrapper:!1,disableMouse:z,disableTouch:!z,observeDOM:!0,autoBlur:!0,wheel:!1,snap:!1,scrollbar:!1,pullDownRefresh:!1,pullUpLoad:!1,mouseWheel:!1,stopPropagation:!1,zoom:!1,infinity:!1,dblclick:!1},$={swipe:{style:"cubic-bezier(0.23, 1, 0.32, 1)",fn:function(t){return 1+--t*t*t*t*t}},swipeBounce:{style:"cubic-bezier(0.25, 0.46, 0.45, 0.94)",fn:function(t){return t*(2-t)}},bounce:{style:"cubic-bezier(0.165, 0.84, 0.44, 1)",fn:function(t){return 1- --t*t*t*t}}},V=function(){return D?window.requestAnimationFrame||window.webkitRequestAnimationFrame||window.mozRequestAnimationFrame||window.oRequestAnimationFrame||function(t){return window.setTimeout(t,(t.interval||100/60)/2)}:S}(),q=function(){return D?window.cancelAnimationFrame||window.webkitCancelAnimationFrame||window.mozCancelAnimationFrame||window.oCancelAnimationFrame||function(t){window.clearTimeout(t)}:S}(),G=1,J=-1,Z=1,K=-1,Q=1,tt=3;M.prototype.handleEvent=function(t){switch(t.type){case"touchstart":case"mousedown":this._start(t);break;case"touchmove":case"mousemove":this._move(t);break;case"touchend":case"mouseup":case"touchcancel":case"mousecancel":this._end(t)}},M.prototype.refresh=function(){this._shouldShow()&&(this.transitionTime(),this._calculate(),this.updatePosition())},M.prototype.fade=function(t,i){var e=this;if(!i||this.visible){var o=t?250:500;t=t?"1":"0",this.wrapperStyle[R.transitionDuration]=o+"ms",clearTimeout(this.fadeTimeout),this.fadeTimeout=setTimeout(function(){e.wrapperStyle.opacity=t,e.visible=+t},0)}},M.prototype.updatePosition=function(){if("vertical"===this.direction){var t=Math.round(this.sizeRatioY*this.scroller.y);if(t<0){this.transitionTime(500);var i=Math.max(this.indicatorHeight+3*t,8);this.indicatorStyle.height=i+"px",t=0}else if(t>this.maxPosY){this.transitionTime(500);var e=Math.max(this.indicatorHeight-3*(t-this.maxPosY),8);this.indicatorStyle.height=e+"px",t=this.maxPosY+this.indicatorHeight-e}else this.indicatorStyle.height=this.indicatorHeight+"px";this.y=t,this.scroller.options.useTransform?this.indicatorStyle[R.transform]="translateY("+t+"px)"+this.scroller.translateZ:this.indicatorStyle.top=t+"px"}else{var o=Math.round(this.sizeRatioX*this.scroller.x);if(o<0){this.transitionTime(500);var n=Math.max(this.indicatorWidth+3*o,8);this.indicatorStyle.width=n+"px",o=0}else if(o>this.maxPosX){this.transitionTime(500);var s=Math.max(this.indicatorWidth-3*(o-this.maxPosX),8);this.indicatorStyle.width=s+"px",o=this.maxPosX+this.indicatorWidth-s}else this.indicatorStyle.width=this.indicatorWidth+"px";this.x=o,this.scroller.options.useTransform?this.indicatorStyle[R.transform]="translateX("+o+"px)"+this.scroller.translateZ:this.indicatorStyle.left=o+"px"}},M.prototype.transitionTime=function(){var t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:0;this.indicatorStyle[R.transitionDuration]=t+"ms"},M.prototype.transitionTimingFunction=function(t){this.indicatorStyle[R.transitionTimingFunction]=t},M.prototype.destroy=function(){this._removeDOMEvents(),this.wrapper.parentNode.removeChild(this.wrapper)},M.prototype._start=function(t){var i=t.touches?t.touches[0]:t;t.preventDefault(),t.stopPropagation(),this.transitionTime(),this.initiated=!0,this.moved=!1,this.lastPointX=i.pageX,this.lastPointY=i.pageY,this.startTime=o(),this._handleMoveEvents(h),this.scroller.trigger("beforeScrollStart")},M.prototype._move=function(t){var i=t.touches?t.touches[0]:t;t.preventDefault(),t.stopPropagation(),this.moved||this.scroller.trigger("scrollStart"),this.moved=!0;var e=i.pageX-this.lastPointX;this.lastPointX=i.pageX;var o=i.pageY-this.lastPointY;this.lastPointY=i.pageY;var n=this.x+e,s=this.y+o;this._pos(n,s)},M.prototype._end=function(t){if(this.initiated){this.initiated=!1,t.preventDefault(),t.stopPropagation(),this._handleMoveEvents(l);var i=this.scroller.options.snap;if(i){var e=i.speed,o=i.easing,n=void 0===o?$.bounce:o,s=this.scroller._nearestSnap(this.scroller.x,this.scroller.y),r=e||Math.max(Math.max(Math.min(Math.abs(this.scroller.x-s.x),1e3),Math.min(Math.abs(this.scroller.y-s.y),1e3)),300);this.scroller.x===s.x&&this.scroller.y===s.y||(this.scroller.directionX=0,this.scroller.directionY=0,this.scroller.currentPage=s,this.scroller.scrollTo(s.x,s.y,r,n))}this.moved&&this.scroller.trigger("scrollEnd",{x:this.scroller.x,y:this.scroller.y})}},M.prototype._pos=function(t,i){t<0?t=0:t>this.maxPosX&&(t=this.maxPosX),i<0?i=0:i>this.maxPosY&&(i=this.maxPosY),t=Math.round(t/this.sizeRatioX),i=Math.round(i/this.sizeRatioY),this.scroller.scrollTo(t,i),this.scroller.trigger("scroll",{x:this.scroller.x,y:this.scroller.y})},M.prototype._shouldShow=function(){return"vertical"===this.direction&&this.scroller.hasVerticalScroll||"horizontal"===this.direction&&this.scroller.hasHorizontalScroll?(this.wrapper.style.display="",!0):(this.wrapper.style.display="none",!1)},M.prototype._calculate=function(){if("vertical"===this.direction){var t=this.wrapper.clientHeight;this.indicatorHeight=Math.max(Math.round(t*t/(this.scroller.scrollerHeight||t||1)),8),this.indicatorStyle.height=this.indicatorHeight+"px",this.maxPosY=t-this.indicatorHeight,this.sizeRatioY=this.maxPosY/this.scroller.maxScrollY}else{var i=this.wrapper.clientWidth;this.indicatorWidth=Math.max(Math.round(i*i/(this.scroller.scrollerWidth||i||1)),8),this.indicatorStyle.width=this.indicatorWidth+"px",this.maxPosX=i-this.indicatorWidth,this.sizeRatioX=this.maxPosX/this.scroller.maxScrollX}},M.prototype._addDOMEvents=function(){var t=h;this._handleDOMEvents(t)},M.prototype._removeDOMEvents=function(){var t=l;this._handleDOMEvents(t),this._handleMoveEvents(t)},M.prototype._handleMoveEvents=function(t){this.scroller.options.disableTouch||t(window,"touchmove",this),this.scroller.options.disableMouse||t(window,"mousemove",this)},M.prototype._handleDOMEvents=function(t){this.scroller.options.disableTouch||(t(this.indicator,"touchstart",this),t(window,"touchend",this)),this.scroller.options.disableMouse||(t(this.indicator,"mousedown",this),t(window,"mouseup",this))};var it=2e3;Y.prototype.onScroll=function(){var t=-this.scroller.y,i=t-this.anchorScrollTop;this.anchorItem=0===t?{index:0,offset:0}:this._calculateAnchoredItem(this.anchorItem,i),this.anchorScrollTop=t;var e=this._calculateAnchoredItem(this.anchorItem,this.wrapperEl.offsetHeight),o=this.anchorItem.index,n=e.index;i<0?(o-=30,n+=10):(o-=10,n+=30),this.fill(o,n),this.maybeRequestContent()},Y.prototype.onResize=function(){var t=this.options.createTombstone();t.style.position="absolute",this.scrollerEl.appendChild(t),t.style.display="",this.tombstoneHeight=t.offsetHeight,this.tombstoneWidth=t.offsetWidth,this.scrollerEl.removeChild(t);for(var i=0;i<this.items.length;i++)this.items[i].height=this.items[i].width=0;this.onScroll()},Y.prototype.fill=function(t,i){this.firstAttachedItem=Math.max(0,t),this.hasMore||(i=Math.min(i,this.items.length)),this.lastAttachedItem=i,this.attachContent()},Y.prototype.maybeRequestContent=function(){var t=this;if(!this.requestInProgress&&this.hasMore){var i=this.lastAttachedItem-this.loadedItems;i<=0||(this.requestInProgress=!0,this.options.fetch(i).then(function(i){if(t.requestInProgress=!1,i)t.addContent(i);else{t.hasMore=!1;var e=t._removeTombstones(),o=0;t.anchorItem.index<=t.items.length?(o=t._fixScrollPosition(),t._setupAnimations({},o),t.scroller.resetPosition(t.scroller.options.bounceTime)):(t.anchorItem.index-=e,o=t._fixScrollPosition(),t._setupAnimations({},o),t.scroller.stop(),t.scroller.resetPosition(),t.onScroll())}}))}},Y.prototype.addContent=function(t){for(var i=0;i<t.length;i++)this.items.length<=this.loadedItems&&this._addItem(),this.items[this.loadedItems++].data=t[i];this.attachContent(),this.maybeRequestContent()},Y.prototype.attachContent=function(){var t=this._collectUnusedNodes(),i=this._createDOMNodes(t);this._cleanupUnusedNodes(t),this._cacheNodeSize();var e=this._fixScrollPosition();this._setupAnimations(i,e)},Y.prototype.resetMore=function(){this.hasMore=!0},Y.prototype._removeTombstones=function(){for(var t=void 0,i=0,e=this.items.length,o=0;o<e;o++){var n=this.items[o].node,s=this.items[o].data;n&&!P(n)||s||(t||(t=o),n&&this.scrollerEl.removeChild(n))}return i=e-t,this.items.splice(t),this.lastAttachedItem=Math.min(this.lastAttachedItem,this.items.length),i},Y.prototype._collectUnusedNodes=function(){for(var t=[],i=0;i<this.items.length;i++)if(i!==this.firstAttachedItem){var e=this.items[i].node;e&&(P(e)?(this.tombstones.push(e),this.tombstones[this.tombstones.length-1].style.display="none"):t.push(e)),this.items[i].node=null}else i=this.lastAttachedItem-1;return t},Y.prototype._createDOMNodes=function(t){for(var i={},e=this.firstAttachedItem;e<this.lastAttachedItem;e++){for(;this.items.length<=e;)this._addItem();var o=this.items[e].node,n=this.items[e].data;if(o){if(!P(o)||!n)continue;o.style.zIndex=1,i[e]=[o,this.items[e].top-this.anchorScrollTop],this.items[e].node=null}var s=n?this.options.render(n,t.pop()):this._getTombStone();s.style.position="absolute",this.items[e].top=-1,this.scrollerEl.appendChild(s),this.items[e].node=s}return i},Y.prototype._cleanupUnusedNodes=function(t){for(;t.length;)this.scrollerEl.removeChild(t.pop())},Y.prototype._cacheNodeSize=function(){for(var t=this.firstAttachedItem;t<this.lastAttachedItem;t++)this.items[t].data&&!this.items[t].height&&(this.items[t].height=this.items[t].node.offsetHeight,this.items[t].width=this.items[t].node.offsetWidth)},Y.prototype._fixScrollPosition=function(){this.anchorScrollTop=0;for(var t=0;t<this.anchorItem.index;t++)this.anchorScrollTop+=this.items[t].height||this.tombstoneHeight;this.anchorScrollTop+=this.anchorItem.offset;for(var i=this.anchorScrollTop-this.anchorItem.offset,e=this.anchorItem.index;e>this.firstAttachedItem;)i-=this.items[e-1].height||this.tombstoneHeight,e--;return i},Y.prototype._setupAnimations=function(t,i){var e=this;for(var o in t){var n=t[o];this.items[o].node.style.transform="translateY("+(this.anchorScrollTop+n[1])+"px) scale("+this.tombstoneWidth/this.items[o].width+", "+this.tombstoneHeight/this.items[o].height+")",this.items[o].node.offsetTop,n[0].offsetTop,this.items[o].node.style.transition="transform 200ms"}for(var s=this.firstAttachedItem;s<this.lastAttachedItem;s++){var r=t[s];if(r){var a=r[0];a.style.transition="transform 200ms, opacity 200ms",a.style.transform="translateY("+i+"px) scale("+this.items[s].width/this.tombstoneWidth+", "+this.items[s].height/this.tombstoneHeight+")",a.style.opacity=0}i!==this.items[s].top&&(r||(this.items[s].node.style.transition=""),this.items[s].node.style.transform="translateY("+i+"px)"),this.items[s].top=i,i+=this.items[s].height||this.tombstoneHeight}this.scroller.maxScrollY=-(i-this.wrapperEl.offsetHeight+(this.hasMore?it:0)),setTimeout(function(){for(var i in t){var o=t[i];o[0].style.display="none",e.tombstones.push(o[0])}},200)},Y.prototype._getTombStone=function(){var t=this.tombstones.pop();return t?(t.style.display="",t.style.opacity=1,t.style.transform="",t.style.transition="",t):this.options.createTombstone()},Y.prototype._addItem=function(){this.items.push({data:null,node:null,height:0,width:0,top:0})},Y.prototype._calculateAnchoredItem=function(t,i){if(0===i)return t;var e=t.index,o=0;if((i+=t.offset)<0){for(;i<0&&e>0&&this.items[e-1].height;)i+=this.items[e-1].height,e--;o=Math.max(-e,Math.ceil(Math.min(i,0)/this.tombstoneHeight))}else{for(;i>0&&e<this.items.length&&this.items[e].height&&this.items[e].height<i;)i-=this.items[e].height,e++;(e>=this.items.length||!this.items[e].height)&&(o=Math.floor(Math.max(i,0)/this.tombstoneHeight))}return e+=o,i-=o*this.tombstoneHeight,{index:e,offset:i}},function(t){t.prototype._init=function(t,i){this._handleOptions(i),this._events={},this.x=0,this.y=0,this.directionX=0,this.directionY=0,this.setScale(1),this._addDOMEvents(),this._initExtFeatures(),this._watchTransition(),this.options.observeDOM&&this._initDOMObserver(),this.options.autoBlur&&this._handleAutoBlur(),this.refresh(),this.options.snap||this.scrollTo(this.options.startX,this.options.startY),this.enable()},t.prototype.setScale=function(t){this.lastScale=s(this.scale)?t:this.scale,this.scale=t},t.prototype._handleOptions=function(t){this.options=n({},U,t),this.translateZ=this.options.HWCompositing&&j?" translateZ(0)":"",this.options.useTransition=this.options.useTransition&&N,this.options.useTransform=this.options.useTransform&&H,this.options.preventDefault=!this.options.eventPassthrough&&this.options.preventDefault,this.options.scrollX="horizontal"!==this.options.eventPassthrough&&this.options.scrollX,this.options.scrollY="vertical"!==this.options.eventPassthrough&&this.options.scrollY,this.options.freeScroll=this.options.freeScroll&&!this.options.eventPassthrough,this.options.directionLockThreshold=this.options.eventPassthrough?0:this.options.directionLockThreshold,!0===this.options.tap&&(this.options.tap="tap")},t.prototype._addDOMEvents=function(){var t=h;this._handleDOMEvents(t)},t.prototype._removeDOMEvents=function(){var t=l;this._handleDOMEvents(t)},t.prototype._handleDOMEvents=function(t){var i=this.options.bindToWrapper?this.wrapper:window;t(window,"orientationchange",this),t(window,"resize",this),this.options.click&&t(this.wrapper,"click",this,!0),this.options.disableMouse||(t(this.wrapper,"mousedown",this),t(i,"mousemove",this),t(i,"mousecancel",this),t(i,"mouseup",this)),z&&!this.options.disableTouch&&(t(this.wrapper,"touchstart",this),t(i,"touchmove",this),t(i,"touchcancel",this),t(i,"touchend",this)),t(this.scroller,R.transitionEnd,this)},t.prototype._initExtFeatures=function(){this.options.snap&&this._initSnap(),this.options.scrollbar&&this._initScrollbar(),this.options.pullUpLoad&&this._initPullUp(),this.options.pullDownRefresh&&this._initPullDown(),this.options.wheel&&this._initWheel(),this.options.mouseWheel&&this._initMouseWheel(),this.options.zoom&&this._initZoom(),this.options.infinity&&this._initInfinite()},t.prototype._watchTransition=function(){if("function"==typeof Object.defineProperty){var t=this,i=!1,e=this.useTransition?"isInTransition":"isAnimating";Object.defineProperty(this,e,{get:function(){return i},set:function(e){i=e;for(var o=t.scroller.children.length?t.scroller.children:[t.scroller],n=i&&!t.pulling?"none":"auto",s=0;s<o.length;s++)o[s].style.pointerEvents=n}})}},t.prototype._handleAutoBlur=function(){this.on("scrollStart",function(){var t=document.activeElement;!t||"INPUT"!==t.tagName&&"TEXTAREA"!==t.tagName||t.blur()})},t.prototype._initDOMObserver=function(){var t=this;if("undefined"!=typeof MutationObserver){var i=void 0,e=new MutationObserver(function(e){if(!t._shouldNotRefresh()){for(var o=!1,n=!1,s=0;s<e.length;s++){var r=e[s];if("attributes"!==r.type){o=!0;break}if(r.target!==t.scroller){n=!0;break}}o?t.refresh():n&&(clearTimeout(i),i=setTimeout(function(){t._shouldNotRefresh()||t.refresh()},60))}}),o={attributes:!0,childList:!0,subtree:!0};e.observe(this.scroller,o),this.on("destroy",function(){e.disconnect()})}else this._checkDOMUpdate()},t.prototype._shouldNotRefresh=function(){var t=this.x>this.minScrollX||this.x<this.maxScrollX||this.y>this.minScrollY||this.y<this.maxScrollY;return this.isInTransition||this.stopFromTransition||t},t.prototype._checkDOMUpdate=function(){function t(){if(!this.destroyed){e=u(this.scroller);var t=e.width,s=e.height;o===t&&n===s||this.refresh(),o=t,n=s,i.call(this)}}function i(){var i=this;setTimeout(function(){t.call(i)},1e3)}var e=u(this.scroller),o=e.width,n=e.height;i.call(this)},t.prototype.handleEvent=function(t){switch(t.type){case"touchstart":case"mousedown":this._start(t),this.options.zoom&&t.touches&&t.touches.length>1&&this._zoomStart(t);break;case"touchmove":case"mousemove":this.options.zoom&&t.touches&&t.touches.length>1?this._zoom(t):this._move(t);break;case"touchend":case"mouseup":case"touchcancel":case"mousecancel":this.scaled?this._zoomEnd(t):this._end(t);break;case"orientationchange":case"resize":this._resize();break;case"transitionend":case"webkitTransitionEnd":case"oTransitionEnd":case"MSTransitionEnd":this._transitionEnd(t);break;case"click":this.enabled&&!t._constructed&&(f(t.target,this.options.preventDefaultException)||(t.preventDefault(),t.stopPropagation()));break;case"wheel":case"DOMMouseScroll":case"mousewheel":this._onMouseWheel(t)}},t.prototype.refresh=function(){var t="static"===window.getComputedStyle(this.wrapper,null).position,i=u(this.wrapper);this.wrapperWidth=i.width,this.wrapperHeight=i.height;var e=u(this.scroller);this.scrollerWidth=Math.round(e.width*this.scale),this.scrollerHeight=Math.round(e.height*this.scale),this.relativeX=e.left,this.relativeY=e.top,t&&(this.relativeX-=i.left,this.relativeY-=i.top),this.minScrollX=0,this.minScrollY=0;var o=this.options.wheel;o?(this.items=this.scroller.children,this.options.itemHeight=this.itemHeight=this.items.length?this.scrollerHeight/this.items.length:0,void 0===this.selectedIndex&&(this.selectedIndex=o.selectedIndex||0),this.options.startY=-this.selectedIndex*this.itemHeight,this.maxScrollX=0,this.maxScrollY=-this.itemHeight*(this.items.length-1)):(this.maxScrollX=this.wrapperWidth-this.scrollerWidth,this.options.infinity||(this.maxScrollY=this.wrapperHeight-this.scrollerHeight),this.maxScrollX<0?(this.maxScrollX-=this.relativeX,this.minScrollX=-this.relativeX):this.scale>1&&(this.maxScrollX=this.maxScrollX/2-this.relativeX,this.minScrollX=this.maxScrollX),this.maxScrollY<0?(this.maxScrollY-=this.relativeY,this.minScrollY=-this.relativeY):this.scale>1&&(this.maxScrollY=this.maxScrollY/2-this.relativeY,this.minScrollY=this.maxScrollY)),this.hasHorizontalScroll=this.options.scrollX&&this.maxScrollX<this.minScrollX,this.hasVerticalScroll=this.options.scrollY&&this.maxScrollY<this.minScrollY,this.hasHorizontalScroll||(this.maxScrollX=this.minScrollX,this.scrollerWidth=this.wrapperWidth),this.hasVerticalScroll||(this.maxScrollY=this.minScrollY,this.scrollerHeight=this.wrapperHeight),this.endTime=0,this.directionX=0,this.directionY=0,this.wrapperOffset=c(this.wrapper),this.trigger("refresh"),!this.scaled&&this.resetPosition()},t.prototype.enable=function(){this.enabled=!0},t.prototype.disable=function(){this.enabled=!1}}(X),function(t){t.prototype._start=function(t){var i=B[t.type];if((i===F||0===t.button)&&!(!this.enabled||this.destroyed||this.initiated&&this.initiated!==i)){this.initiated=i,this.options.preventDefault&&!f(t.target,this.options.preventDefaultException)&&t.preventDefault(),this.options.stopPropagation&&t.stopPropagation(),this.moved=!1,this.distX=0,this.distY=0,this.directionX=0,this.directionY=0,this.movingDirectionX=0,this.movingDirectionY=0,this.directionLocked=0,this._transitionTime(),this.startTime=o(),this.options.wheel&&(this.target=t.target),this.stop();var e=t.touches?t.touches[0]:t;this.startX=this.x,this.startY=this.y,this.absStartX=this.x,this.absStartY=this.y,this.pointX=e.pageX,this.pointY=e.pageY,this.trigger("beforeScrollStart")}},t.prototype._move=function(t){if(this.enabled&&!this.destroyed&&B[t.type]===this.initiated){this.options.preventDefault&&t.preventDefault(),this.options.stopPropagation&&t.stopPropagation();var i=t.touches?t.touches[0]:t,e=i.pageX-this.pointX,n=i.pageY-this.pointY;this.pointX=i.pageX,this.pointY=i.pageY,this.distX+=e,this.distY+=n;var s=Math.abs(this.distX),r=Math.abs(this.distY),a=o();if(!(a-this.endTime>this.options.momentumLimitTime&&r<this.options.momentumLimitDistance&&s<this.options.momentumLimitDistance)){if(this.directionLocked||this.options.freeScroll||(s>r+this.options.directionLockThreshold?this.directionLocked="h":r>=s+this.options.directionLockThreshold?this.directionLocked="v":this.directionLocked="n"),"h"===this.directionLocked){if("vertical"===this.options.eventPassthrough)t.preventDefault();else if("horizontal"===this.options.eventPassthrough)return void(this.initiated=!1);n=0}else if("v"===this.directionLocked){if("horizontal"===this.options.eventPassthrough)t.preventDefault();else if("vertical"===this.options.eventPassthrough)return void(this.initiated=!1);e=0}e=this.hasHorizontalScroll?e:0,n=this.hasVerticalScroll?n:0,this.movingDirectionX=e>0?K:e<0?Z:0,this.movingDirectionY=n>0?J:n<0?G:0;var h=this.x+e,l=this.y+n,c=!1,p=!1,u=!1,f=!1,d=this.options.bounce;!1!==d&&(c=void 0===d.top||d.top,p=void 0===d.bottom||d.bottom,u=void 0===d.left||d.left,f=void 0===d.right||d.right),(h>this.minScrollX||h<this.maxScrollX)&&(h=h>this.minScrollX&&u||h<this.maxScrollX&&f?this.x+e/3:h>this.minScrollX?this.minScrollX:this.maxScrollX),(l>this.minScrollY||l<this.maxScrollY)&&(l=l>this.minScrollY&&c||l<this.maxScrollY&&p?this.y+n/3:l>this.minScrollY?this.minScrollY:this.maxScrollY),this.moved||(this.moved=!0,this.trigger("scrollStart")),this._translate(h,l),a-this.startTime>this.options.momentumLimitTime&&(this.startTime=a,this.startX=this.x,this.startY=this.y,this.options.probeType===Q&&this.trigger("scroll",{x:this.x,y:this.y})),this.options.probeType>Q&&this.trigger("scroll",{x:this.x,y:this.y});var m=document.documentElement.scrollLeft||window.pageXOffset||document.body.scrollLeft,g=document.documentElement.scrollTop||window.pageYOffset||document.body.scrollTop,v=this.pointX-m,y=this.pointY-g;(v>document.documentElement.clientWidth-this.options.momentumLimitDistance||v<this.options.momentumLimitDistance||y<this.options.momentumLimitDistance||y>document.documentElement.clientHeight-this.options.momentumLimitDistance)&&this._end(t)}}},t.prototype._end=function(t){if(this.enabled&&!this.destroyed&&B[t.type]===this.initiated){this.initiated=!1,this.options.preventDefault&&!f(t.target,this.options.preventDefaultException)&&t.preventDefault(),this.options.stopPropagation&&t.stopPropagation(),this.trigger("touchEnd",{x:this.x,y:this.y}),this.isInTransition=!1;var i=Math.round(this.x),e=Math.round(this.y),n=i-this.absStartX,s=e-this.absStartY;if(this.directionX=n>0?K:n<0?Z:0,this.directionY=s>0?J:s<0?G:0,!this.options.pullDownRefresh||!this._checkPullDown()){if(this._checkClick(t))return void this.trigger("scrollCancel");if(!this.resetPosition(this.options.bounceTime,$.bounce)){this._translate(i,e),this.endTime=o();var r=this.endTime-this.startTime,a=Math.abs(i-this.startX),h=Math.abs(e-this.startY);if(this._events.flick&&r<this.options.flickLimitTime&&a<this.options.flickLimitDistance&&h<this.options.flickLimitDistance)return void this.trigger("flick");var l=0;if(this.options.momentum&&r<this.options.momentumLimitTime&&(h>this.options.momentumLimitDistance||a>this.options.momentumLimitDistance)){var c=!1,p=!1,u=!1,d=!1,m=this.options.bounce;!1!==m&&(c=void 0===m.top||m.top,p=void 0===m.bottom||m.bottom,u=void 0===m.left||m.left,d=void 0===m.right||m.right);var g=this.directionX===K&&u||this.directionX===Z&&d?this.wrapperWidth:0,v=this.directionY===J&&c||this.directionY===G&&p?this.wrapperHeight:0,y=this.hasHorizontalScroll?x(this.x,this.startX,r,this.maxScrollX,this.minScrollX,g,this.options):{destination:i,duration:0},b=this.hasVerticalScroll?x(this.y,this.startY,r,this.maxScrollY,this.minScrollY,v,this.options):{destination:e,duration:0};i=y.destination,e=b.destination,l=Math.max(y.duration,b.duration),this.isInTransition=!0}else this.options.wheel&&(e=Math.round(e/this.itemHeight)*this.itemHeight,l=this.options.wheel.adjustTime||400);var S=$.swipe;if(this.options.snap){var w=this._nearestSnap(i,e);this.currentPage=w,l=this.options.snapSpeed||Math.max(Math.max(Math.min(Math.abs(i-w.x),1e3),Math.min(Math.abs(e-w.y),1e3)),300),i=w.x,e=w.y,this.directionX=0,this.directionY=0,S=this.options.snap.easing||$.bounce}if(i!==this.x||e!==this.y)return(i>this.minScrollX||i<this.maxScrollX||e>this.minScrollY||e<this.maxScrollY)&&(S=$.swipeBounce),void this.scrollTo(i,e,l,S);this.options.wheel&&(this.selectedIndex=Math.round(Math.abs(this.y/this.itemHeight))),this.trigger("scrollEnd",{x:this.x,y:this.y})}}}},t.prototype._checkClick=function(t){var i=this.stopFromTransition&&!this.pulling;if(this.stopFromTransition=!1,!this.moved){if(this.options.wheel){if(this.target&&this.target.classList.contains(this.options.wheel.wheelWrapperClass)){var e=Math.abs(Math.round(this.y/this.itemHeight)),n=Math.round((this.pointY+p(this.wrapper).top-this.wrapperHeight/2)/this.itemHeight);this.target=this.items[e+n]}return this.scrollToElement(this.target,this.options.wheel.adjustTime||400,!0,!0,$.swipe),!0}if(!i){var s=this.options.dblclick,r=!1;if(s&&this.lastClickTime){var a=s.delay,h=void 0===a?300:a;o()-this.lastClickTime<h&&(r=!0,g(t))}return this.options.tap&&d(t,this.options.tap),this.options.click&&!f(t.target,this.options.preventDefaultException)&&m(t),this.lastClickTime=r?null:o(),!0}return!1}return!1},t.prototype._resize=function(){var t=this;this.enabled&&(A&&(this.wrapper.scrollTop=0),clearTimeout(this.resizeTimeout),this.resizeTimeout=setTimeout(function(){t.refresh()},this.options.resizePolling))},t.prototype._startProbe=function(){function t(){var e=i.getComputedPosition();if(i.trigger("scroll",e),!i.isInTransition)return void i.trigger("scrollEnd",e);i.probeTimer=V(t)}q(this.probeTimer),this.probeTimer=V(t);var i=this},t.prototype._transitionTime=function(){var t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:0;if(this.scrollerStyle[R.transitionDuration]=t+"ms",this.options.wheel)for(var i=0;i<this.items.length;i++)this.items[i].style[R.transitionDuration]=t+"ms";if(this.indicators)for(var e=0;e<this.indicators.length;e++)this.indicators[e].transitionTime(t)},t.prototype._transitionTimingFunction=function(t){if(this.scrollerStyle[R.transitionTimingFunction]=t,this.options.wheel)for(var i=0;i<this.items.length;i++)this.items[i].style[R.transitionTimingFunction]=t;if(this.indicators)for(var e=0;e<this.indicators.length;e++)this.indicators[e].transitionTimingFunction(t)},t.prototype._transitionEnd=function(t){t.target===this.scroller&&this.isInTransition&&(this._transitionTime(),(!this.pulling||this.movingDirectionY===G)&&!this.resetPosition(this.options.bounceTime,$.bounce)&&(this.isInTransition=!1,this.options.probeType!==tt&&this.trigger("scrollEnd",{x:this.x,y:this.y})))},t.prototype._translate=function(t,i,e){if(T(!s(t)&&!s(i),"Translate x or y is null or undefined."),s(e)&&(e=this.scale),this.options.useTransform?this.scrollerStyle[R.transform]="translate("+t+"px,"+i+"px) scale("+e+")"+this.translateZ:(t=Math.round(t),i=Math.round(i),this.scrollerStyle.left=t+"px",this.scrollerStyle.top=i+"px"),this.options.wheel)for(var o=this.options.wheel.rotate,n=void 0===o?25:o,r=0;r<this.items.length;r++){var a=n*(i/this.itemHeight+r);this.items[r].style[R.transform]="rotateX("+a+"deg)"}if(this.x=t,this.y=i,this.setScale(e),this.indicators)for(var h=0;h<this.indicators.length;h++)this.indicators[h].updatePosition()},t.prototype._animate=function(t,i,e,n){function s(){var f=o();if(f>=u)return r.isAnimating=!1,r._translate(t,i,c),r.trigger("scroll",{x:r.x,y:r.y}),void(r.pulling||r.resetPosition(r.options.bounceTime)||r.trigger("scrollEnd",{x:r.x,y:r.y}));f=(f-p)/e;var d=n(f),m=(t-a)*d+a,g=(i-h)*d+h,v=(c-l)*d+l;r._translate(m,g,v),r.isAnimating&&(r.animateTimer=V(s)),r.options.probeType===tt&&r.trigger("scroll",{x:r.x,y:r.y})}var r=this,a=this.x,h=this.y,l=this.lastScale,c=this.scale,p=o(),u=p+e;this.isAnimating=!0,q(this.animateTimer),s()},t.prototype.scrollBy=function(t,i){var e=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0,o=arguments.length>3&&void 0!==arguments[3]?arguments[3]:$.bounce;t=this.x+t,i=this.y+i,this.scrollTo(t,i,e,o)},t.prototype.scrollTo=function(t,i){var e=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0,o=arguments.length>3&&void 0!==arguments[3]?arguments[3]:$.bounce;this.isInTransition=this.options.useTransition&&e>0&&(t!==this.x||i!==this.y),!e||this.options.useTransition?(this._transitionTimingFunction(o.style),this._transitionTime(e),this._translate(t,i),e&&this.options.probeType===tt&&this._startProbe(),e||t===this.x&&i===this.y||(this.trigger("scroll",{x:t,y:i}),this._reflow=document.body.offsetHeight,this.resetPosition(this.options.bounceTime,$.bounce)||this.trigger("scrollEnd",{x:t,y:i})),this.options.wheel&&(i>this.minScrollY?this.selectedIndex=0:i<this.maxScrollY?this.selectedIndex=this.items.length-1:this.selectedIndex=Math.round(Math.abs(i/this.itemHeight)))):this._animate(t,i,e,o.fn)},t.prototype.scrollToElement=function(t,i,e,o,n){if(t&&(t=t.nodeType?t:this.scroller.querySelector(t),!this.options.wheel||t.classList.contains(this.options.wheel.wheelItemClass))){var s=c(t);s.left-=this.wrapperOffset.left,s.top-=this.wrapperOffset.top,!0===e&&(e=Math.round(t.offsetWidth/2-this.wrapper.offsetWidth/2)),!0===o&&(o=Math.round(t.offsetHeight/2-this.wrapper.offsetHeight/2)),s.left-=e||0,s.top-=o||0,s.left=s.left>this.minScrollX?this.minScrollX:s.left<this.maxScrollX?this.maxScrollX:s.left,s.top=s.top>this.minScrollY?this.minScrollY:s.top<this.maxScrollY?this.maxScrollY:s.top,this.options.wheel&&(s.top=Math.round(s.top/this.itemHeight)*this.itemHeight),this.scrollTo(s.left,s.top,i,n)}},t.prototype.resetPosition=function(){var t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:0,i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:$.bounce,e=this.x,o=Math.round(e);!this.hasHorizontalScroll||o>this.minScrollX?e=this.minScrollX:o<this.maxScrollX&&(e=this.maxScrollX);var n=this.y,s=Math.round(n);return!this.hasVerticalScroll||s>this.minScrollY?n=this.minScrollY:s<this.maxScrollY&&(n=this.maxScrollY),(e!==this.x||n!==this.y)&&(this.scrollTo(e,n,t,i),!0)},t.prototype.getComputedPosition=function(){var t=window.getComputedStyle(this.scroller,null),i=void 0,e=void 0;return this.options.useTransform?(t=t[R.transform].split(")")[0].split(", "),i=+(t[12]||t[4]),e=+(t[13]||t[5])):(i=+t.left.replace(/[^-\d.]/g,""),e=+t.top.replace(/[^-\d.]/g,"")),{x:i,y:e}},t.prototype.stop=function(){if(this.options.useTransition&&this.isInTransition){this.isInTransition=!1,q(this.probeTimer);var t=this.getComputedPosition();this._translate(t.x,t.y),this.options.wheel?this.target=this.items[Math.round(-t.y/this.itemHeight)]:this.trigger("scrollEnd",{x:this.x,y:this.y}),this.stopFromTransition=!0}else!this.options.useTransition&&this.isAnimating&&(this.isAnimating=!1,q(this.animateTimer),this.trigger("scrollEnd",{x:this.x,y:this.y}),this.stopFromTransition=!0)},t.prototype.destroy=function(){this.destroyed=!0,this.trigger("destroy"),q(this.options.useTransition?this.probeTimer:this.animateTimer),this._removeDOMEvents(),this._events={}}}(X),function(t){t.prototype.on=function(t,i){var e=arguments.length>2&&void 0!==arguments[2]?arguments[2]:this;this._events[t]||(this._events[t]=[]),this._events[t].push([i,e])},t.prototype.once=function(t,i){function e(){this.off(t,e),i.apply(o,arguments)}var o=arguments.length>2&&void 0!==arguments[2]?arguments[2]:this;e.fn=i,this.on(t,e)},t.prototype.off=function(t,i){var e=this._events[t];if(e)for(var o=e.length;o--;)(e[o][0]===i||e[o][0]&&e[o][0].fn===i)&&(e[o][0]=void 0)},t.prototype.trigger=function(t){var i=this._events[t];if(i)for(var e=i.length,o=[].concat(O(i)),n=0;n<e;n++){var s=o[n],r=E(s,2),a=r[0],h=r[1];a&&a.apply(h,[].slice.call(arguments,1))}}}(X),function(t){t.prototype._initSnap=function(){var t=this;this.currentPage={};var i=this.options.snap;if(i.loop){var e=this.scroller.children;e.length>1?(v(e[e.length-1].cloneNode(!0),this.scroller),this.scroller.appendChild(e[1].cloneNode(!0))):i.loop=!1}var o=i.el;"string"==typeof o&&(o=this.scroller.querySelectorAll(o)),this.on("refresh",function(){if(t.pages=[],t.wrapperWidth&&t.wrapperHeight&&t.scrollerWidth&&t.scrollerHeight){var e=i.stepX||t.wrapperWidth,n=i.stepY||t.wrapperHeight,s=0,r=void 0,a=void 0,h=void 0,l=0,c=void 0,p=0,f=void 0,d=void 0;if(o)for(c=o.length,f=-1;l<c;l++)d=u(o[l]),(0===l||d.left<=u(o[l-1]).left)&&(p=0,f++),t.pages[p]||(t.pages[p]=[]),s=Math.max(-d.left,t.maxScrollX),r=Math.max(-d.top,t.maxScrollY),a=s-Math.round(d.width/2),h=r-Math.round(d.height/2),t.pages[p][f]={x:s,y:r,width:d.width,height:d.height,cx:a,cy:h},s>t.maxScrollX&&p++;else for(a=Math.round(e/2),h=Math.round(n/2);s>-t.scrollerWidth;){for(t.pages[l]=[],c=0,r=0;r>-t.scrollerHeight;)t.pages[l][c]={x:Math.max(s,t.maxScrollX),y:Math.max(r,t.maxScrollY),width:e,height:n,cx:s-a,cy:r-h},r-=n,c++;s-=e,l++}t._checkSnapLoop();var m=i._loopX?1:0,g=i._loopY?1:0;t._goToPage(t.currentPage.pageX||m,t.currentPage.pageY||g,0);var v=i.threshold;v%1==0?(t.snapThresholdX=v,t.snapThresholdY=v):(t.snapThresholdX=Math.round(t.pages[t.currentPage.pageX][t.currentPage.pageY].width*v),t.snapThresholdY=Math.round(t.pages[t.currentPage.pageX][t.currentPage.pageY].height*v))}}),this.on("scrollEnd",function(){i.loop&&(i._loopX?(0===t.currentPage.pageX&&t._goToPage(t.pages.length-2,t.currentPage.pageY,0),t.currentPage.pageX===t.pages.length-1&&t._goToPage(1,t.currentPage.pageY,0)):(0===t.currentPage.pageY&&t._goToPage(t.currentPage.pageX,t.pages[0].length-2,0),t.currentPage.pageY===t.pages[0].length-1&&t._goToPage(t.currentPage.pageX,1,0)))}),!1!==i.listenFlick&&this.on("flick",function(){var e=i.speed||Math.max(Math.max(Math.min(Math.abs(t.x-t.startX),1e3),Math.min(Math.abs(t.y-t.startY),1e3)),300);t._goToPage(t.currentPage.pageX+t.directionX,t.currentPage.pageY+t.directionY,e)}),this.on("destroy",function(){if(i.loop){var e=t.scroller.children;e.length>2&&(b(t.scroller,e[e.length-1]),b(t.scroller,e[0]))}})},t.prototype._checkSnapLoop=function(){var t=this.options.snap;t.loop&&this.pages&&this.pages.length&&(this.pages.length>1&&(t._loopX=!0),this.pages[0]&&this.pages[0].length>1&&(t._loopY=!0),t._loopX&&t._loopY&&w("Loop does not support two direction at the same time."))},t.prototype._nearestSnap=function(t,i){if(!this.pages.length)return{x:0,y:0,pageX:0,pageY:0};var e=0;if(Math.abs(t-this.absStartX)<=this.snapThresholdX&&Math.abs(i-this.absStartY)<=this.snapThresholdY)return this.currentPage;t>this.minScrollX?t=this.minScrollX:t<this.maxScrollX&&(t=this.maxScrollX),i>this.minScrollY?i=this.minScrollY:i<this.maxScrollY&&(i=this.maxScrollY);for(var o=this.pages.length;e<o;e++)if(t>=this.pages[e][0].cx){t=this.pages[e][0].x;break}o=this.pages[e].length;for(var n=0;n<o;n++)if(i>=this.pages[0][n].cy){i=this.pages[0][n].y;break}return e===this.currentPage.pageX&&(e+=this.directionX,e<0?e=0:e>=this.pages.length&&(e=this.pages.length-1),t=this.pages[e][0].x),n===this.currentPage.pageY&&(n+=this.directionY,n<0?n=0:n>=this.pages[0].length&&(n=this.pages[0].length-1),i=this.pages[0][n].y),{x:t,y:i,pageX:e,pageY:n}},t.prototype._goToPage=function(t){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,e=arguments[2],o=arguments[3],n=this.options.snap;if(n&&this.pages&&this.pages.length&&(o=o||n.easing||$.bounce,t>=this.pages.length?t=this.pages.length-1:t<0&&(t=0),this.pages[t])){i>=this.pages[t].length?i=this.pages[t].length-1:i<0&&(i=0);var s=this.pages[t][i].x,r=this.pages[t][i].y;e=void 0===e?n.speed||Math.max(Math.max(Math.min(Math.abs(s-this.x),1e3),Math.min(Math.abs(r-this.y),1e3)),300):e,this.currentPage={x:s,y:r,pageX:t,pageY:i},this.scrollTo(s,r,e,o)}},t.prototype.goToPage=function(t,i,e,o){var n=this.options.snap;if(n&&this.pages&&this.pages.length){if(n.loop){var s=void 0;n._loopX?(s=this.pages.length-2,t>=s?t=s-1:t<0&&(t=0),t+=1):(s=this.pages[0].length-2,i>=s?i=s-1:i<0&&(i=0),i+=1)}this._goToPage(t,i,e,o)}},t.prototype.next=function(t,i){if(this.options.snap){var e=this.currentPage.pageX,o=this.currentPage.pageY;e++,e>=this.pages.length&&this.hasVerticalScroll&&(e=0,o++),this._goToPage(e,o,t,i)}},t.prototype.prev=function(t,i){if(this.options.snap){var e=this.currentPage.pageX,o=this.currentPage.pageY;e--,e<0&&this.hasVerticalScroll&&(e=0,o--),this._goToPage(e,o,t,i)}},t.prototype.getCurrentPage=function(){var t=this.options.snap;return t?t.loop?t._loopX?n({},this.currentPage,{pageX:this.currentPage.pageX-1}):n({},this.currentPage,{pageY:this.currentPage.pageY-1}):this.currentPage:null}}(X),function(t){t.prototype.wheelTo=function(){var t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:0;this.options.wheel&&(this.y=-t*this.itemHeight,this.scrollTo(0,this.y))},t.prototype.getSelectedIndex=function(){return this.options.wheel&&this.selectedIndex},t.prototype._initWheel=function(){var t=this.options.wheel;t.wheelWrapperClass||(t.wheelWrapperClass="wheel-scroll"),t.wheelItemClass||(t.wheelItemClass="wheel-item"),void 0===t.selectedIndex&&(t.selectedIndex=0,w("wheel option selectedIndex is required!"))}}(X),function(t){t.prototype._initScrollbar=function(){var t=this,i=this.options.scrollbar,e=i.fade,o=void 0===e||e,n=i.interactive,s=void 0!==n&&n;this.indicators=[];var r=void 0;this.options.scrollX&&(r={el:_("horizontal"),direction:"horizontal",fade:o,interactive:s},this._insertScrollBar(r.el),this.indicators.push(new M(this,r))),this.options.scrollY&&(r={el:_("vertical"),direction:"vertical",fade:o,interactive:s},this._insertScrollBar(r.el),this.indicators.push(new M(this,r))),this.on("refresh",function(){for(var i=0;i<t.indicators.length;i++)t.indicators[i].refresh()}),o&&(this.on("scrollEnd",function(){for(var i=0;i<t.indicators.length;i++)t.indicators[i].fade()}),this.on("scrollCancel",function(){for(var i=0;i<t.indicators.length;i++)t.indicators[i].fade()}),this.on("scrollStart",function(){for(var i=0;i<t.indicators.length;i++)t.indicators[i].fade(!0)}),this.on("beforeScrollStart",function(){for(var i=0;i<t.indicators.length;i++)t.indicators[i].fade(!0,!0)})),this.on("destroy",function(){t._removeScrollBars()})},t.prototype._insertScrollBar=function(t){this.wrapper.appendChild(t)},t.prototype._removeScrollBars=function(){for(var t=0;t<this.indicators.length;t++)this.indicators[t].destroy()}}(X),function(t){t.prototype._initPullDown=function(){this.options.probeType=tt},t.prototype._checkPullDown=function(){var t=this.options.pullDownRefresh,i=t.threshold,e=void 0===i?90:i,o=t.stop,n=void 0===o?40:o;return!(this.directionY!==J||this.y<e)&&(this.pulling||(this.pulling=!0,this.trigger("pullingDown")),this.scrollTo(this.x,n,this.options.bounceTime,$.bounce),this.pulling)},t.prototype.finishPullDown=function(){this.pulling=!1,this.resetPosition(this.options.bounceTime,$.bounce)},t.prototype.openPullDown=function(){var t=!(arguments.length>0&&void 0!==arguments[0])||arguments[0];this.options.pullDownRefresh=t,this._initPullDown()},t.prototype.closePullDown=function(){this.options.pullDownRefresh=!1}}(X),function(t){t.prototype._initPullUp=function(){this.options.probeType=tt,this.pullupWatching=!1,this._watchPullUp()},t.prototype._watchPullUp=function(){this.pullupWatching||(this.pullupWatching=!0,this.on("scroll",this._checkToEnd))},t.prototype._checkToEnd=function(t){var i=this,e=this.options.pullUpLoad.threshold,o=void 0===e?0:e;this.movingDirectionY===G&&t.y<=this.maxScrollY+o&&(this.once("scrollEnd",function(){i.pullupWatching=!1}),this.trigger("pullingUp"),this.off("scroll",this._checkToEnd))},t.prototype.finishPullUp=function(){var t=this;this.pullupWatching?this.once("scrollEnd",function(){t._watchPullUp()}):this._watchPullUp()},t.prototype.openPullUp=function(){var t=!(arguments.length>0&&void 0!==arguments[0])||arguments[0];this.options.pullUpLoad=t,this._initPullUp()},t.prototype.closePullUp=function(){this.options.pullUpLoad=!1,this.pullupWatching&&(this.pullupWatching=!1,this.off("scroll",this._checkToEnd))}}(X),function(t){t.prototype._initMouseWheel=function(){var t=this;this._handleMouseWheelEvent(h),this.on("destroy",function(){clearTimeout(t.mouseWheelTimer),clearTimeout(t.mouseWheelEndTimer),t._handleMouseWheelEvent(l)}),this.firstWheelOpreation=!0},t.prototype._handleMouseWheelEvent=function(t){t(this.wrapper,"wheel",this),t(this.wrapper,"mousewheel",this),t(this.wrapper,"DOMMouseScroll",this)},t.prototype._onMouseWheel=function(t){var i=this;if(this.enabled){t.preventDefault(),this.options.stopPropagation&&t.stopPropagation(),this.firstWheelOpreation&&this.trigger("scrollStart"),this.firstWheelOpreation=!1;var e=this.options.mouseWheel,o=e.speed,n=void 0===o?20:o,s=e.invert,r=void 0!==s&&s,a=e.easeTime,h=void 0===a?300:a;clearTimeout(this.mouseWheelTimer),this.mouseWheelTimer=setTimeout(function(){i.options.snap||h||i.trigger("scrollEnd",{x:i.x,y:i.y}),i.firstWheelOpreation=!0},400);var l=void 0,c=void 0;switch(!0){case"deltaX"in t:1===t.deltaMode?(l=-t.deltaX*n,c=-t.deltaY*n):(l=-t.deltaX,c=-t.deltaY);break;case"whee