4 lines
32 KiB
JavaScript
4 lines
32 KiB
JavaScript
!function(t,i,s){function e(s,e){this.wrapper="string"==typeof s?i.querySelector(s):s,this.scroller=this.wrapper.children[0],this.scrollerStyle=this.scroller.style,this.options={resizeScrollbars:!0,mouseWheelSpeed:20,snapThreshold:.334,disablePointer:!h.hasPointer,disableTouch:h.hasPointer||!h.hasTouch,disableMouse:h.hasPointer||h.hasTouch,startX:0,startY:0,scrollY:!0,directionLockThreshold:5,momentum:!0,bounce:!0,bounceTime:600,bounceEasing:"",preventDefault:!0,preventDefaultException:{tagName:/^(INPUT|TEXTAREA|BUTTON|SELECT)$/},HWCompositing:!0,useTransition:!0,useTransform:!0,bindToWrapper:"undefined"==typeof t.onmousedown};for(var o in e)this.options[o]=e[o];this.translateZ=this.options.HWCompositing&&h.hasPerspective?" translateZ(0)":"",this.options.useTransition=h.hasTransition&&this.options.useTransition,this.options.useTransform=h.hasTransform&&this.options.useTransform,this.options.eventPassthrough=this.options.eventPassthrough===!0?"vertical":this.options.eventPassthrough,this.options.preventDefault=!this.options.eventPassthrough&&this.options.preventDefault,this.options.scrollY="vertical"==this.options.eventPassthrough?!1:this.options.scrollY,this.options.scrollX="horizontal"==this.options.eventPassthrough?!1:this.options.scrollX,this.options.freeScroll=this.options.freeScroll&&!this.options.eventPassthrough,this.options.directionLockThreshold=this.options.eventPassthrough?0:this.options.directionLockThreshold,this.options.bounceEasing="string"==typeof this.options.bounceEasing?h.ease[this.options.bounceEasing]||h.ease.circular:this.options.bounceEasing,this.options.resizePolling=void 0===this.options.resizePolling?60:this.options.resizePolling,this.options.tap===!0&&(this.options.tap="tap"),"scale"==this.options.shrinkScrollbars&&(this.options.useTransition=!1),this.options.invertWheelDirection=this.options.invertWheelDirection?-1:1,this.x=0,this.y=0,this.directionX=0,this.directionY=0,this._events={},this._init(),this.refresh(),this.scrollTo(this.options.startX,this.options.startY),this.enable()}function o(t,s,e){var o=i.createElement("div"),n=i.createElement("div");return e===!0&&(o.style.cssText="position:absolute;z-index:9999",n.style.cssText="-webkit-box-sizing:border-box;-moz-box-sizing:border-box;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"),n.className="iScrollIndicator","h"==t?(e===!0&&(o.style.cssText+=";height:7px;left:2px;right:2px;bottom:0",n.style.height="100%"),o.className="iScrollHorizontalScrollbar"):(e===!0&&(o.style.cssText+=";width:7px;bottom:2px;top:2px;right:1px",n.style.width="100%"),o.className="iScrollVerticalScrollbar"),o.style.cssText+=";overflow:hidden",s||(o.style.pointerEvents="none"),o.appendChild(n),o}function n(s,e){this.wrapper="string"==typeof e.el?i.querySelector(e.el):e.el,this.wrapperStyle=this.wrapper.style,this.indicator=this.wrapper.children[0],this.indicatorStyle=this.indicator.style,this.scroller=s,this.options={listenX:!0,listenY:!0,interactive:!1,resize:!0,defaultScrollbars:!1,shrink:!1,fade:!1,speedRatioX:0,speedRatioY:0};for(var o in e)this.options[o]=e[o];if(this.sizeRatioX=1,this.sizeRatioY=1,this.maxPosX=0,this.maxPosY=0,this.options.interactive&&(this.options.disableTouch||(h.addEvent(this.indicator,"touchstart",this),h.addEvent(t,"touchend",this)),this.options.disablePointer||(h.addEvent(this.indicator,h.prefixPointerEvent("pointerdown"),this),h.addEvent(t,h.prefixPointerEvent("pointerup"),this)),this.options.disableMouse||(h.addEvent(this.indicator,"mousedown",this),h.addEvent(t,"mouseup",this))),this.options.fade){this.wrapperStyle[h.style.transform]=this.scroller.translateZ;var n=h.style.transitionDuration;this.wrapperStyle[n]=h.isBadAndroid?"0.0001ms":"0ms";var a=this;h.isBadAndroid&&r(function(){"0.0001ms"===a.wrapperStyle[n]&&(a.wrapperStyle[n]="0s")}),this.wrapperStyle.opacity="0"}}var r=t.requestAnimationFrame||t.webkitRequestAnimationFrame||t.mozRequestAnimationFrame||t.oRequestAnimationFrame||t.msRequestAnimationFrame||function(i){t.setTimeout(i,1e3/60)},h=function(){function e(t){return r===!1?!1:""===r?t:r+t.charAt(0).toUpperCase()+t.substr(1)}var o={},n=i.createElement("div").style,r=function(){for(var t,i=["t","webkitT","MozT","msT","OT"],s=0,e=i.length;e>s;s++)if(t=i[s]+"ransform",t in n)return i[s].substr(0,i[s].length-1);return!1}();o.getTime=Date.now||function(){return(new Date).getTime()},o.extend=function(t,i){for(var s in i)t[s]=i[s]},o.addEvent=function(t,i,s,e){t.addEventListener(i,s,!!e)},o.removeEvent=function(t,i,s,e){t.removeEventListener(i,s,!!e)},o.prefixPointerEvent=function(i){return t.MSPointerEvent?"MSPointer"+i.charAt(7).toUpperCase()+i.substr(8):i},o.momentum=function(t,i,e,o,n,r){var h,a,l=t-i,c=s.abs(l)/e;return r=void 0===r?6e-4:r,h=t+c*c/(2*r)*(0>l?-1:1),a=c/r,o>h?(h=n?o-n/2.5*(c/8):o,l=s.abs(h-t),a=l/c):h>0&&(h=n?n/2.5*(c/8):0,l=s.abs(t)+h,a=l/c),{destination:s.round(h),duration:a}};var h=e("transform");return o.extend(o,{hasTransform:h!==!1,hasPerspective:e("perspective")in n,hasTouch:"ontouchstart"in t,hasPointer:!(!t.PointerEvent&&!t.MSPointerEvent),hasTransition:e("transition")in n}),o.isBadAndroid=function(){var i=t.navigator.appVersion;if(/Android/.test(i)&&!/Chrome\/\d/.test(i)){var s=i.match(/Safari\/(\d+.\d)/);return s&&"object"==typeof s&&s.length>=2?parseFloat(s[1])<535.19:!0}return!1}(),o.extend(o.style={},{transform:h,transitionTimingFunction:e("transitionTimingFunction"),transitionDuration:e("transitionDuration"),transitionDelay:e("transitionDelay"),transformOrigin:e("transformOrigin")}),o.hasClass=function(t,i){var s=new RegExp("(^|\\s)"+i+"(\\s|$)");return s.test(t.className)},o.addClass=function(t,i){if(!o.hasClass(t,i)){var s=t.className.split(" ");s.push(i),t.className=s.join(" ")}},o.removeClass=function(t,i){if(o.hasClass(t,i)){var s=new RegExp("(^|\\s)"+i+"(\\s|$)","g");t.className=t.className.replace(s," ")}},o.offset=function(t){for(var i=-t.offsetLeft,s=-t.offsetTop;t=t.offsetParent;)i-=t.offsetLeft,s-=t.offsetTop;return{left:i,top:s}},o.preventDefaultException=function(t,i){for(var s in i)if(i[s].test(t[s]))return!0;return!1},o.extend(o.eventType={},{touchstart:1,touchmove:1,touchend:1,mousedown:2,mousemove:2,mouseup:2,pointerdown:3,pointermove:3,pointerup:3,MSPointerDown:3,MSPointerMove:3,MSPointerUp:3}),o.extend(o.ease={},{quadratic:{style:"cubic-bezier(0.25, 0.46, 0.45, 0.94)",fn:function(t){return t*(2-t)}},circular:{style:"cubic-bezier(0.1, 0.57, 0.1, 1)",fn:function(t){return s.sqrt(1- --t*t)}},back:{style:"cubic-bezier(0.175, 0.885, 0.32, 1.275)",fn:function(t){var i=4;return(t-=1)*t*((i+1)*t+i)+1}},bounce:{style:"",fn:function(t){return(t/=1)<1/2.75?7.5625*t*t:2/2.75>t?7.5625*(t-=1.5/2.75)*t+.75:2.5/2.75>t?7.5625*(t-=2.25/2.75)*t+.9375:7.5625*(t-=2.625/2.75)*t+.984375}},elastic:{style:"",fn:function(t){var i=.22,e=.4;return 0===t?0:1==t?1:e*s.pow(2,-10*t)*s.sin((t-i/4)*(2*s.PI)/i)+1}}}),o.tap=function(t,s){var e=i.createEvent("Event");e.initEvent(s,!0,!0),e.pageX=t.pageX,e.pageY=t.pageY,t.target.dispatchEvent(e)},o.click=function(t){var s,e=t.target;/(SELECT|INPUT|TEXTAREA)/i.test(e.tagName)||(s=i.createEvent("MouseEvents"),s.initMouseEvent("click",!0,!0,t.view,1,e.screenX,e.screenY,e.clientX,e.clientY,t.ctrlKey,t.altKey,t.shiftKey,t.metaKey,0,null),s._constructed=!0,e.dispatchEvent(s))},o}();e.prototype={version:"5.2.0",_init:function(){this._initEvents(),(this.options.scrollbars||this.options.indicators)&&this._initIndicators(),this.options.mouseWheel&&this._initWheel(),this.options.snap&&this._initSnap(),this.options.keyBindings&&this._initKeys()},destroy:function(){this._initEvents(!0),clearTimeout(this.resizeTimeout),this.resizeTimeout=null,this._execEvent("destroy")},_transitionEnd:function(t){t.target==this.scroller&&this.isInTransition&&(this._transitionTime(),this.resetPosition(this.options.bounceTime)||(this.isInTransition=!1,this._execEvent("scrollEnd")))},_start:function(t){if(1!=h.eventType[t.type]){var i;if(i=t.which?t.button:t.button<2?0:4==t.button?1:2,0!==i)return}if(this.enabled&&(!this.initiated||h.eventType[t.type]===this.initiated)){!this.options.preventDefault||h.isBadAndroid||h.preventDefaultException(t.target,this.options.preventDefaultException)||t.preventDefault();var e,o=t.touches?t.touches[0]:t;this.initiated=h.eventType[t.type],this.moved=!1,this.distX=0,this.distY=0,this.directionX=0,this.directionY=0,this.directionLocked=0,this.startTime=h.getTime(),this.options.useTransition&&this.isInTransition?(this._transitionTime(),this.isInTransition=!1,e=this.getComputedPosition(),this._translate(s.round(e.x),s.round(e.y)),this._execEvent("scrollEnd")):!this.options.useTransition&&this.isAnimating&&(this.isAnimating=!1,this._execEvent("scrollEnd")),this.startX=this.x,this.startY=this.y,this.absStartX=this.x,this.absStartY=this.y,this.pointX=o.pageX,this.pointY=o.pageY,this._execEvent("beforeScrollStart")}},_move:function(t){if(this.enabled&&h.eventType[t.type]===this.initiated){this.options.preventDefault&&t.preventDefault();var i,e,o,n,r=t.touches?t.touches[0]:t,a=r.pageX-this.pointX,l=r.pageY-this.pointY,c=h.getTime();if(this.pointX=r.pageX,this.pointY=r.pageY,this.distX+=a,this.distY+=l,o=s.abs(this.distX),n=s.abs(this.distY),!(c-this.endTime>300&&10>o&&10>n)){if(this.directionLocked||this.options.freeScroll||(o>n+this.options.directionLockThreshold?this.directionLocked="h":n>=o+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);l=0}else if("v"==this.directionLocked){if("horizontal"==this.options.eventPassthrough)t.preventDefault();else if("vertical"==this.options.eventPassthrough)return void(this.initiated=!1);a=0}a=this.hasHorizontalScroll?a:0,l=this.hasVerticalScroll?l:0,i=this.x+a,e=this.y+l,(i>0||i<this.maxScrollX)&&(i=this.options.bounce?this.x+a/3:i>0?0:this.maxScrollX),(e>0||e<this.maxScrollY)&&(e=this.options.bounce?this.y+l/3:e>0?0:this.maxScrollY),this.directionX=a>0?-1:0>a?1:0,this.directionY=l>0?-1:0>l?1:0,this.moved||this._execEvent("scrollStart"),this.moved=!0,this._translate(i,e),c-this.startTime>300&&(this.startTime=c,this.startX=this.x,this.startY=this.y)}}},_end:function(t){if(this.enabled&&h.eventType[t.type]===this.initiated){this.options.preventDefault&&!h.preventDefaultException(t.target,this.options.preventDefaultException)&&t.preventDefault();var i,e,o=(t.changedTouches?t.changedTouches[0]:t,h.getTime()-this.startTime),n=s.round(this.x),r=s.round(this.y),a=s.abs(n-this.startX),l=s.abs(r-this.startY),c=0,p="";if(this.isInTransition=0,this.initiated=0,this.endTime=h.getTime(),!this.resetPosition(this.options.bounceTime)){if(this.scrollTo(n,r),!this.moved)return this.options.tap&&h.tap(t,this.options.tap),this.options.click&&h.click(t),void this._execEvent("scrollCancel");if(this._events.flick&&200>o&&100>a&&100>l)return void this._execEvent("flick");if(this.options.momentum&&300>o&&(i=this.hasHorizontalScroll?h.momentum(this.x,this.startX,o,this.maxScrollX,this.options.bounce?this.wrapperWidth:0,this.options.deceleration):{destination:n,duration:0},e=this.hasVerticalScroll?h.momentum(this.y,this.startY,o,this.maxScrollY,this.options.bounce?this.wrapperHeight:0,this.options.deceleration):{destination:r,duration:0},n=i.destination,r=e.destination,c=s.max(i.duration,e.duration),this.isInTransition=1),this.options.snap){var d=this._nearestSnap(n,r);this.currentPage=d,c=this.options.snapSpeed||s.max(s.max(s.min(s.abs(n-d.x),1e3),s.min(s.abs(r-d.y),1e3)),300),n=d.x,r=d.y,this.directionX=0,this.directionY=0,p=this.options.bounceEasing}return n!=this.x||r!=this.y?((n>0||n<this.maxScrollX||r>0||r<this.maxScrollY)&&(p=h.ease.quadratic),void this.scrollTo(n,r,c,p)):void this._execEvent("scrollEnd")}}},_resize:function(){var t=this;clearTimeout(this.resizeTimeout),this.resizeTimeout=setTimeout(function(){t.refresh()},this.options.resizePolling)},resetPosition:function(t){var i=this.x,s=this.y;return t=t||0,!this.hasHorizontalScroll||this.x>0?i=0:this.x<this.maxScrollX&&(i=this.maxScrollX),!this.hasVerticalScroll||this.y>0?s=0:this.y<this.maxScrollY&&(s=this.maxScrollY),i==this.x&&s==this.y?!1:(this.scrollTo(i,s,t,this.options.bounceEasing),!0)},disable:function(){this.enabled=!1},enable:function(){this.enabled=!0},refresh:function(){this.wrapper.offsetHeight;this.wrapperWidth=this.wrapper.clientWidth,this.wrapperHeight=this.wrapper.clientHeight,this.scrollerWidth=this.scroller.offsetWidth,this.scrollerHeight=this.scroller.offsetHeight,this.maxScrollX=this.wrapperWidth-this.scrollerWidth,this.maxScrollY=this.wrapperHeight-this.scrollerHeight,this.hasHorizontalScroll=this.options.scrollX&&this.maxScrollX<0,this.hasVerticalScroll=this.options.scrollY&&this.maxScrollY<0,this.hasHorizontalScroll||(this.maxScrollX=0,this.scrollerWidth=this.wrapperWidth),this.hasVerticalScroll||(this.maxScrollY=0,this.scrollerHeight=this.wrapperHeight),this.endTime=0,this.directionX=0,this.directionY=0,this.wrapperOffset=h.offset(this.wrapper),this._execEvent("refresh"),this.resetPosition()},on:function(t,i){this._events[t]||(this._events[t]=[]),this._events[t].push(i)},off:function(t,i){if(this._events[t]){var s=this._events[t].indexOf(i);s>-1&&this._events[t].splice(s,1)}},_execEvent:function(t){if(this._events[t]){var i=0,s=this._events[t].length;if(s)for(;s>i;i++)this._events[t][i].apply(this,[].slice.call(arguments,1))}},scrollBy:function(t,i,s,e){t=this.x+t,i=this.y+i,s=s||0,this.scrollTo(t,i,s,e)},scrollTo:function(t,i,s,e){e=e||h.ease.circular,this.isInTransition=this.options.useTransition&&s>0;var o=this.options.useTransition&&e.style;!s||o?(o&&(this._transitionTimingFunction(e.style),this._transitionTime(s)),this._translate(t,i)):this._animate(t,i,s,e.fn)},scrollToElement:function(t,i,e,o,n){if(t=t.nodeType?t:this.scroller.querySelector(t)){var r=h.offset(t);r.left-=this.wrapperOffset.left,r.top-=this.wrapperOffset.top,e===!0&&(e=s.round(t.offsetWidth/2-this.wrapper.offsetWidth/2)),o===!0&&(o=s.round(t.offsetHeight/2-this.wrapper.offsetHeight/2)),r.left-=e||0,r.top-=o||0,r.left=r.left>0?0:r.left<this.maxScrollX?this.maxScrollX:r.left,r.top=r.top>0?0:r.top<this.maxScrollY?this.maxScrollY:r.top,i=void 0===i||null===i||"auto"===i?s.max(s.abs(this.x-r.left),s.abs(this.y-r.top)):i,this.scrollTo(r.left,r.top,i,n)}},_transitionTime:function(t){t=t||0;var i=h.style.transitionDuration;if(this.scrollerStyle[i]=t+"ms",!t&&h.isBadAndroid){this.scrollerStyle[i]="0.0001ms";var s=this;r(function(){"0.0001ms"===s.scrollerStyle[i]&&(s.scrollerStyle[i]="0s")})}if(this.indicators)for(var e=this.indicators.length;e--;)this.indicators[e].transitionTime(t)},_transitionTimingFunction:function(t){if(this.scrollerStyle[h.style.transitionTimingFunction]=t,this.indicators)for(var i=this.indicators.length;i--;)this.indicators[i].transitionTimingFunction(t)},_translate:function(t,i){if(this.options.useTransform?this.scrollerStyle[h.style.transform]="translate("+t+"px,"+i+"px)"+this.translateZ:(t=s.round(t),i=s.round(i),this.scrollerStyle.left=t+"px",this.scrollerStyle.top=i+"px"),this.x=t,this.y=i,this.indicators)for(var e=this.indicators.length;e--;)this.indicators[e].updatePosition()},_initEvents:function(i){var s=i?h.removeEvent:h.addEvent,e=this.options.bindToWrapper?this.wrapper:t;s(t,"orientationchange",this),s(t,"resize",this),this.options.click&&s(this.wrapper,"click",this,!0),this.options.disableMouse||(s(this.wrapper,"mousedown",this),s(e,"mousemove",this),s(e,"mousecancel",this),s(e,"mouseup",this)),h.hasPointer&&!this.options.disablePointer&&(s(this.wrapper,h.prefixPointerEvent("pointerdown"),this),s(e,h.prefixPointerEvent("pointermove"),this),s(e,h.prefixPointerEvent("pointercancel"),this),s(e,h.prefixPointerEvent("pointerup"),this)),h.hasTouch&&!this.options.disableTouch&&(s(this.wrapper,"touchstart",this),s(e,"touchmove",this),s(e,"touchcancel",this),s(e,"touchend",this)),s(this.scroller,"transitionend",this),s(this.scroller,"webkitTransitionEnd",this),s(this.scroller,"oTransitionEnd",this),s(this.scroller,"MSTransitionEnd",this)},getComputedPosition:function(){var i,s,e=t.getComputedStyle(this.scroller,null);return this.options.useTransform?(e=e[h.style.transform].split(")")[0].split(", "),i=+(e[12]||e[4]),s=+(e[13]||e[5])):(i=+e.left.replace(/[^-\d.]/g,""),s=+e.top.replace(/[^-\d.]/g,"")),{x:i,y:s}},_initIndicators:function(){function t(t){if(h.indicators)for(var i=h.indicators.length;i--;)t.call(h.indicators[i])}var i,s=this.options.interactiveScrollbars,e="string"!=typeof this.options.scrollbars,r=[],h=this;this.indicators=[],this.options.scrollbars&&(this.options.scrollY&&(i={el:o("v",s,this.options.scrollbars),interactive:s,defaultScrollbars:!0,customStyle:e,resize:this.options.resizeScrollbars,shrink:this.options.shrinkScrollbars,fade:this.options.fadeScrollbars,listenX:!1},this.wrapper.appendChild(i.el),r.push(i)),this.options.scrollX&&(i={el:o("h",s,this.options.scrollbars),interactive:s,defaultScrollbars:!0,customStyle:e,resize:this.options.resizeScrollbars,shrink:this.options.shrinkScrollbars,fade:this.options.fadeScrollbars,listenY:!1},this.wrapper.appendChild(i.el),r.push(i))),this.options.indicators&&(r=r.concat(this.options.indicators));for(var a=r.length;a--;)this.indicators.push(new n(this,r[a]));this.options.fadeScrollbars&&(this.on("scrollEnd",function(){t(function(){this.fade()})}),this.on("scrollCancel",function(){t(function(){this.fade()})}),this.on("scrollStart",function(){t(function(){this.fade(1)})}),this.on("beforeScrollStart",function(){t(function(){this.fade(1,!0)})})),this.on("refresh",function(){t(function(){this.refresh()})}),this.on("destroy",function(){t(function(){this.destroy()}),delete this.indicators})},_initWheel:function(){h.addEvent(this.wrapper,"wheel",this),h.addEvent(this.wrapper,"mousewheel",this),h.addEvent(this.wrapper,"DOMMouseScroll",this),this.on("destroy",function(){clearTimeout(this.wheelTimeout),this.wheelTimeout=null,h.removeEvent(this.wrapper,"wheel",this),h.removeEvent(this.wrapper,"mousewheel",this),h.removeEvent(this.wrapper,"DOMMouseScroll",this)})},_wheel:function(t){if(this.enabled){t.preventDefault();var i,e,o,n,r=this;if(void 0===this.wheelTimeout&&r._execEvent("scrollStart"),clearTimeout(this.wheelTimeout),this.wheelTimeout=setTimeout(function(){r.options.snap||r._execEvent("scrollEnd"),r.wheelTimeout=void 0},400),"deltaX"in t)1===t.deltaMode?(i=-t.deltaX*this.options.mouseWheelSpeed,e=-t.deltaY*this.options.mouseWheelSpeed):(i=-t.deltaX,e=-t.deltaY);else if("wheelDeltaX"in t)i=t.wheelDeltaX/120*this.options.mouseWheelSpeed,e=t.wheelDeltaY/120*this.options.mouseWheelSpeed;else if("wheelDelta"in t)i=e=t.wheelDelta/120*this.options.mouseWheelSpeed;else{if(!("detail"in t))return;i=e=-t.detail/3*this.options.mouseWheelSpeed}if(i*=this.options.invertWheelDirection,e*=this.options.invertWheelDirection,this.hasVerticalScroll||(i=e,e=0),this.options.snap)return o=this.currentPage.pageX,n=this.currentPage.pageY,i>0?o--:0>i&&o++,e>0?n--:0>e&&n++,void this.goToPage(o,n);o=this.x+s.round(this.hasHorizontalScroll?i:0),n=this.y+s.round(this.hasVerticalScroll?e:0),this.directionX=i>0?-1:0>i?1:0,this.directionY=e>0?-1:0>e?1:0,o>0?o=0:o<this.maxScrollX&&(o=this.maxScrollX),n>0?n=0:n<this.maxScrollY&&(n=this.maxScrollY),this.scrollTo(o,n,0)}},_initSnap:function(){this.currentPage={},"string"==typeof this.options.snap&&(this.options.snap=this.scroller.querySelectorAll(this.options.snap)),this.on("refresh",function(){var t,i,e,o,n,r,h=0,a=0,l=0,c=this.options.snapStepX||this.wrapperWidth,p=this.options.snapStepY||this.wrapperHeight;if(this.pages=[],this.wrapperWidth&&this.wrapperHeight&&this.scrollerWidth&&this.scrollerHeight){if(this.options.snap===!0)for(e=s.round(c/2),o=s.round(p/2);l>-this.scrollerWidth;){for(this.pages[h]=[],t=0,n=0;n>-this.scrollerHeight;)this.pages[h][t]={x:s.max(l,this.maxScrollX),y:s.max(n,this.maxScrollY),width:c,height:p,cx:l-e,cy:n-o},n-=p,t++;l-=c,h++}else for(r=this.options.snap,t=r.length,i=-1;t>h;h++)(0===h||r[h].offsetLeft<=r[h-1].offsetLeft)&&(a=0,i++),this.pages[a]||(this.pages[a]=[]),l=s.max(-r[h].offsetLeft,this.maxScrollX),n=s.max(-r[h].offsetTop,this.maxScrollY),e=l-s.round(r[h].offsetWidth/2),o=n-s.round(r[h].offsetHeight/2),this.pages[a][i]={x:l,y:n,width:r[h].offsetWidth,height:r[h].offsetHeight,cx:e,cy:o},l>this.maxScrollX&&a++;this.goToPage(this.currentPage.pageX||0,this.currentPage.pageY||0,0),this.options.snapThreshold%1===0?(this.snapThresholdX=this.options.snapThreshold,this.snapThresholdY=this.options.snapThreshold):(this.snapThresholdX=s.round(this.pages[this.currentPage.pageX][this.currentPage.pageY].width*this.options.snapThreshold),this.snapThresholdY=s.round(this.pages[this.currentPage.pageX][this.currentPage.pageY].height*this.options.snapThreshold))}}),this.on("flick",function(){var t=this.options.snapSpeed||s.max(s.max(s.min(s.abs(this.x-this.startX),1e3),s.min(s.abs(this.y-this.startY),1e3)),300);this.goToPage(this.currentPage.pageX+this.directionX,this.currentPage.pageY+this.directionY,t)})},_nearestSnap:function(t,i){if(!this.pages.length)return{x:0,y:0,pageX:0,pageY:0};var e=0,o=this.pages.length,n=0;if(s.abs(t-this.absStartX)<this.snapThresholdX&&s.abs(i-this.absStartY)<this.snapThresholdY)return this.currentPage;for(t>0?t=0:t<this.maxScrollX&&(t=this.maxScrollX),i>0?i=0:i<this.maxScrollY&&(i=this.maxScrollY);o>e;e++)if(t>=this.pages[e][0].cx){t=this.pages[e][0].x;break}for(o=this.pages[e].length;o>n;n++)if(i>=this.pages[0][n].cy){i=this.pages[0][n].y;break}return e==this.currentPage.pageX&&(e+=this.directionX,0>e?e=0:e>=this.pages.length&&(e=this.pages.length-1),t=this.pages[e][0].x),n==this.currentPage.pageY&&(n+=this.directionY,0>n?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}},goToPage:function(t,i,e,o){o=o||this.options.bounceEasing,t>=this.pages.length?t=this.pages.length-1:0>t&&(t=0),i>=this.pages[t].length?i=this.pages[t].length-1:0>i&&(i=0);var n=this.pages[t][i].x,r=this.pages[t][i].y;e=void 0===e?this.options.snapSpeed||s.max(s.max(s.min(s.abs(n-this.x),1e3),s.min(s.abs(r-this.y),1e3)),300):e,this.currentPage={x:n,y:r,pageX:t,pageY:i},this.scrollTo(n,r,e,o)},next:function(t,i){var s=this.currentPage.pageX,e=this.currentPage.pageY;s++,s>=this.pages.length&&this.hasVerticalScroll&&(s=0,e++),this.goToPage(s,e,t,i)},prev:function(t,i){var s=this.currentPage.pageX,e=this.currentPage.pageY;s--,0>s&&this.hasVerticalScroll&&(s=0,e--),this.goToPage(s,e,t,i)},_initKeys:function(i){var s,e={pageUp:33,pageDown:34,end:35,home:36,left:37,up:38,right:39,down:40};if("object"==typeof this.options.keyBindings)for(s in this.options.keyBindings)"string"==typeof this.options.keyBindings[s]&&(this.options.keyBindings[s]=this.options.keyBindings[s].toUpperCase().charCodeAt(0));else this.options.keyBindings={};for(s in e)this.options.keyBindings[s]=this.options.keyBindings[s]||e[s];h.addEvent(t,"keydown",this),this.on("destroy",function(){h.removeEvent(t,"keydown",this)})},_key:function(t){if(this.enabled){var i,e=this.options.snap,o=e?this.currentPage.pageX:this.x,n=e?this.currentPage.pageY:this.y,r=h.getTime(),a=this.keyTime||0,l=.25;switch(this.options.useTransition&&this.isInTransition&&(i=this.getComputedPosition(),this._translate(s.round(i.x),s.round(i.y)),this.isInTransition=!1),this.keyAcceleration=200>r-a?s.min(this.keyAcceleration+l,50):0,t.keyCode){case this.options.keyBindings.pageUp:this.hasHorizontalScroll&&!this.hasVerticalScroll?o+=e?1:this.wrapperWidth:n+=e?1:this.wrapperHeight;break;case this.options.keyBindings.pageDown:this.hasHorizontalScroll&&!this.hasVerticalScroll?o-=e?1:this.wrapperWidth:n-=e?1:this.wrapperHeight;break;case this.options.keyBindings.end:o=e?this.pages.length-1:this.maxScrollX,n=e?this.pages[0].length-1:this.maxScrollY;break;case this.options.keyBindings.home:o=0,n=0;break;case this.options.keyBindings.left:o+=e?-1:5+this.keyAcceleration>>0;break;case this.options.keyBindings.up:n+=e?1:5+this.keyAcceleration>>0;break;case this.options.keyBindings.right:o-=e?-1:5+this.keyAcceleration>>0;break;case this.options.keyBindings.down:n-=e?1:5+this.keyAcceleration>>0;break;default:return}if(e)return void this.goToPage(o,n);o>0?(o=0,this.keyAcceleration=0):o<this.maxScrollX&&(o=this.maxScrollX,this.keyAcceleration=0),n>0?(n=0,this.keyAcceleration=0):n<this.maxScrollY&&(n=this.maxScrollY,this.keyAcceleration=0),this.scrollTo(o,n,0),this.keyTime=r}},_animate:function(t,i,s,e){function o(){var d,u,m,f=h.getTime();return f>=p?(n.isAnimating=!1,n._translate(t,i),void(n.resetPosition(n.options.bounceTime)||n._execEvent("scrollEnd"))):(f=(f-c)/s,m=e(f),d=(t-a)*m+a,u=(i-l)*m+l,n._translate(d,u),void(n.isAnimating&&r(o)))}var n=this,a=this.x,l=this.y,c=h.getTime(),p=c+s;this.isAnimating=!0,o()},handleEvent:function(t){switch(t.type){case"touchstart":case"pointerdown":case"MSPointerDown":case"mousedown":this._start(t);break;case"touchmove":case"pointermove":case"MSPointerMove":case"mousemove":this._move(t);break;case"touchend":case"pointerup":case"MSPointerUp":case"mouseup":case"touchcancel":case"pointercancel":case"MSPointerCancel":case"mousecancel":this._end(t);break;case"orientationchange":case"resize":this._resize();break;case"transitionend":case"webkitTransitionEnd":case"oTransitionEnd":case"MSTransitionEnd":this._transitionEnd(t);break;case"wheel":case"DOMMouseScroll":case"mousewheel":this._wheel(t);break;case"keydown":this._key(t);break;case"click":this.enabled&&!t._constructed&&(t.preventDefault(),t.stopPropagation())}}},n.prototype={handleEvent:function(t){switch(t.type){case"touchstart":case"pointerdown":case"MSPointerDown":case"mousedown":this._start(t);break;case"touchmove":case"pointermove":case"MSPointerMove":case"mousemove":this._move(t);break;case"touchend":case"pointerup":case"MSPointerUp":case"mouseup":case"touchcancel":case"pointercancel":case"MSPointerCancel":case"mousecancel":this._end(t)}},destroy:function(){this.options.fadeScrollbars&&(clearTimeout(this.fadeTimeout),this.fadeTimeout=null),this.options.interactive&&(h.removeEvent(this.indicator,"touchstart",this),h.removeEvent(this.indicator,h.prefixPointerEvent("pointerdown"),this),h.removeEvent(this.indicator,"mousedown",this),h.removeEvent(t,"touchmove",this),h.removeEvent(t,h.prefixPointerEvent("pointermove"),this),h.removeEvent(t,"mousemove",this),h.removeEvent(t,"touchend",this),h.removeEvent(t,h.prefixPointerEvent("pointerup"),this),h.removeEvent(t,"mouseup",this)),this.options.defaultScrollbars&&this.wrapper.parentNode.removeChild(this.wrapper)},_start:function(i){var s=i.touches?i.touches[0]:i;i.preventDefault(),i.stopPropagation(),this.transitionTime(),this.initiated=!0,this.moved=!1,this.lastPointX=s.pageX,this.lastPointY=s.pageY,this.startTime=h.getTime(),this.options.disableTouch||h.addEvent(t,"touchmove",this),this.options.disablePointer||h.addEvent(t,h.prefixPointerEvent("pointermove"),this),this.options.disableMouse||h.addEvent(t,"mousemove",this),this.scroller._execEvent("beforeScrollStart")},_move:function(t){var i,s,e,o,n=t.touches?t.touches[0]:t;h.getTime();this.moved||this.scroller._execEvent("scrollStart"),this.moved=!0,i=n.pageX-this.lastPointX,this.lastPointX=n.pageX,s=n.pageY-this.lastPointY,this.lastPointY=n.pageY,e=this.x+i,o=this.y+s,this._pos(e,o),t.preventDefault(),t.stopPropagation()},_end:function(i){if(this.initiated){if(this.initiated=!1,i.preventDefault(),i.stopPropagation(),h.removeEvent(t,"touchmove",this),h.removeEvent(t,h.prefixPointerEvent("pointermove"),this),h.removeEvent(t,"mousemove",this),this.scroller.options.snap){var e=this.scroller._nearestSnap(this.scroller.x,this.scroller.y),o=this.options.snapSpeed||s.max(s.max(s.min(s.abs(this.scroller.x-e.x),1e3),s.min(s.abs(this.scroller.y-e.y),1e3)),300);this.scroller.x==e.x&&this.scroller.y==e.y||(this.scroller.directionX=0,this.scroller.directionY=0,this.scroller.currentPage=e,this.scroller.scrollTo(e.x,e.y,o,this.scroller.options.bounceEasing))}this.moved&&this.scroller._execEvent("scrollEnd")}},transitionTime:function(t){t=t||0;var i=h.style.transitionDuration;if(this.indicatorStyle[i]=t+"ms",!t&&h.isBadAndroid){this.indicatorStyle[i]="0.0001ms";var s=this;r(function(){"0.0001ms"===s.indicatorStyle[i]&&(s.indicatorStyle[i]="0s")})}},transitionTimingFunction:function(t){this.indicatorStyle[h.style.transitionTimingFunction]=t},refresh:function(){this.transitionTime(),this.options.listenX&&!this.options.listenY?this.indicatorStyle.display=this.scroller.hasHorizontalScroll?"block":"none":this.options.listenY&&!this.options.listenX?this.indicatorStyle.display=this.scroller.hasVerticalScroll?"block":"none":this.indicatorStyle.display=this.scroller.hasHorizontalScroll||this.scroller.hasVerticalScroll?"block":"none",this.scroller.hasHorizontalScroll&&this.scroller.hasVerticalScroll?(h.addClass(this.wrapper,"iScrollBothScrollbars"),h.removeClass(this.wrapper,"iScrollLoneScrollbar"),this.options.defaultScrollbars&&this.options.customStyle&&(this.options.listenX?this.wrapper.style.right="8px":this.wrapper.style.bottom="8px")):(h.removeClass(this.wrapper,"iScrollBothScrollbars"),h.addClass(this.wrapper,"iScrollLoneScrollbar"),this.options.defaultScrollbars&&this.options.customStyle&&(this.options.listenX?this.wrapper.style.right="2px":this.wrapper.style.bottom="2px"));this.wrapper.offsetHeight;this.options.listenX&&(this.wrapperWidth=this.wrapper.clientWidth,this.options.resize?(this.indicatorWidth=s.max(s.round(this.wrapperWidth*this.wrapperWidth/(this.scroller.scrollerWidth||this.wrapperWidth||1)),8),this.indicatorStyle.width=this.indicatorWidth+"px"):this.indicatorWidth=this.indicator.clientWidth,this.maxPosX=this.wrapperWidth-this.indicatorWidth,"clip"==this.options.shrink?(this.minBoundaryX=-this.indicatorWidth+8,this.maxBoundaryX=this.wrapperWidth-8):(this.minBoundaryX=0,this.maxBoundaryX=this.maxPosX),this.sizeRatioX=this.options.speedRatioX||this.scroller.maxScrollX&&this.maxPosX/this.scroller.maxScrollX),this.options.listenY&&(this.wrapperHeight=this.wrapper.clientHeight,this.options.resize?(this.indicatorHeight=s.max(s.round(this.wrapperHeight*this.wrapperHeight/(this.scroller.scrollerHeight||this.wrapperHeight||1)),8),this.indicatorStyle.height=this.indicatorHeight+"px"):this.indicatorHeight=this.indicator.clientHeight,this.maxPosY=this.wrapperHeight-this.indicatorHeight,"clip"==this.options.shrink?(this.minBoundaryY=-this.indicatorHeight+8,this.maxBoundaryY=this.wrapperHeight-8):(this.minBoundaryY=0,this.maxBoundaryY=this.maxPosY),this.maxPosY=this.wrapperHeight-this.indicatorHeight,this.sizeRatioY=this.options.speedRatioY||this.scroller.maxScrollY&&this.maxPosY/this.scroller.maxScrollY),this.updatePosition()},updatePosition:function(){var t=this.options.listenX&&s.round(this.sizeRatioX*this.scroller.x)||0,i=this.options.listenY&&s.round(this.sizeRatioY*this.scroller.y)||0;this.options.ignoreBoundaries||(t<this.minBoundaryX?("scale"==this.options.shrink&&(this.width=s.max(this.indicatorWidth+t,8),this.indicatorStyle.width=this.width+"px"),t=this.minBoundaryX):t>this.maxBoundaryX?"scale"==this.options.shrink?(this.width=s.max(this.indicatorWidth-(t-this.maxPosX),8),this.indicatorStyle.width=this.width+"px",t=this.maxPosX+this.indicatorWidth-this.width):t=this.maxBoundaryX:"scale"==this.options.shrink&&this.width!=this.indicatorWidth&&(this.width=this.indicatorWidth,this.indicatorStyle.width=this.width+"px"),i<this.minBoundaryY?("scale"==this.options.shrink&&(this.height=s.max(this.indicatorHeight+3*i,8),this.indicatorStyle.height=this.height+"px"),i=this.minBoundaryY):i>this.maxBoundaryY?"scale"==this.options.shrink?(this.height=s.max(this.indicatorHeight-3*(i-this.maxPosY),8),this.indicatorStyle.height=this.height+"px",i=this.maxPosY+this.indicatorHeight-this.height):i=this.maxBoundaryY:"scale"==this.options.shrink&&this.height!=this.indicatorHeight&&(this.height=this.indicatorHeight,this.indicatorStyle.height=this.height+"px")),
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this.x=t,this.y=i,this.scroller.options.useTransform?this.indicatorStyle[h.style.transform]="translate("+t+"px,"+i+"px)"+this.scroller.translateZ:(this.indicatorStyle.left=t+"px",this.indicatorStyle.top=i+"px")},_pos:function(t,i){0>t?t=0:t>this.maxPosX&&(t=this.maxPosX),0>i?i=0:i>this.maxPosY&&(i=this.maxPosY),t=this.options.listenX?s.round(t/this.sizeRatioX):this.scroller.x,i=this.options.listenY?s.round(i/this.sizeRatioY):this.scroller.y,this.scroller.scrollTo(t,i)},fade:function(t,i){if(!i||this.visible){clearTimeout(this.fadeTimeout),this.fadeTimeout=null;var s=t?250:500,e=t?0:300;t=t?"1":"0",this.wrapperStyle[h.style.transitionDuration]=s+"ms",this.fadeTimeout=setTimeout(function(t){this.wrapperStyle.opacity=t,this.visible=+t}.bind(this,t),e)}}},e.utils=h,"undefined"!=typeof module&&module.exports?module.exports=e:"function"==typeof define&&define.amd?define(function(){return e}):t.IScroll=e}(window,document,Math);
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//# sourceMappingURL=./iscroll.min.js.map
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