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e=Math.round(t);return!this.hasScroll&&!this.hooks.trigger(this.hooks.eventTypes.ignoreHasScroll)||e>this.minScrollPos?e=this.minScrollPos:e<this.maxScrollPos&&(e=this.maxScrollPos),e},ut.prototype.updateStartPos=function(){this.startPos=this.currentPos},ut.prototype.updateAbsStartPos=function(){this.absStartPos=this.currentPos},ut.prototype.resetStartPos=function(){this.updateStartPos(),this.updateAbsStartPos()},ut.prototype.getAbsDist=function(t){return this.dist+=t,Math.abs(this.dist)},ut.prototype.destroy=function(){this.hooks.destroy()},ut);function ut(t,e,o){this.wrapper=t,this.options=o,this.hooks=new R(["beforeComputeBoundary","computeBoundary","momentum","end","ignoreHasScroll"]),this.refresh(e)}var dt=((ht={}).yes=function(t){return!0},ht.no=function(t){return t.preventDefault(),!1},ht),ft=((at={}).horizontal=((ct={}).yes="horizontal",ct.no="vertical",ct),at.vertical=((lt={}).yes="vertical",lt.no="horizontal",lt),at),vt=(yt.prototype.reset=function(){this.directionLocked=""},yt.prototype.checkMovingDirection=function(t,e,o){return this.computeDirectionLock(t,e),this.handleEventPassthrough(o)},yt.prototype.adjustDelta=function(t,e){return"horizontal"===this.directionLocked?e=0:"vertical"===this.directionLocked&&(t=0),{deltaX:t,deltaY:e}},yt.prototype.computeDirectionLock=function(t,e){""!==this.directionLocked||this.freeScroll||(t>e+this.directionLockThreshold?this.directionLocked="horizontal":e>=t+this.directionLockThreshold?this.directionLocked="vertical":this.directionLocked="none")},yt.prototype.handleEventPassthrough=function(t){var e=ft[this.directionLocked];if(e){if(this.eventPassthrough===e.yes)return dt.yes(t);if(this.eventPassthrough===e.no)return dt.no(t)}return!1},yt);function yt(t,e,o){this.directionLockThreshold=t,this.freeScroll=e,this.eventPassthrough=o,this.reset()}var mt=(gt.prototype.bindActionsHandler=function(){var s=this;this.actionsHandler.hooks.on(this.actionsHandler.hooks.eventTypes.start,function(t){return!s.enabled||s.handleStart(t)}),this.actionsHandler.hooks.on(this.actionsHandler.hooks.eventTypes.move,function(t){var e=t.deltaX,o=t.deltaY,i=t.e;return!s.enabled||s.handleMove(e,o,i)}),this.actionsHandler.hooks.on(this.actionsHandler.hooks.eventTypes.end,function(t){return!s.enabled||s.handleEnd(t)}),this.actionsHandler.hooks.on(this.actionsHandler.hooks.eventTypes.click,function(t){s.enabled&&!t._constructed&&s.handleClick(t)})},gt.prototype.handleStart=function(t){var e=u();this.moved=!1,this.startTime=e,this.directionLockAction.reset(),this.scrollBehaviorX.start(),this.scrollBehaviorY.start(),this.animater.doStop(),this.scrollBehaviorX.resetStartPos(),this.scrollBehaviorY.resetStartPos(),this.hooks.trigger(this.hooks.eventTypes.start,t)},gt.prototype.handleMove=function(t,e,o){if(!this.hooks.trigger(this.hooks.eventTypes.beforeMove,o)){var i=this.scrollBehaviorX.getAbsDist(t),s=this.scrollBehaviorY.getAbsDist(e),n=u();if(this.checkMomentum(i,s,n))return!0;if(this.directionLockAction.checkMovingDirection(i,s,o))return this.actionsHandler.setInitiated(),!0;var r=this.directionLockAction.adjustDelta(t,e),h=this.scrollBehaviorX.move(r.deltaX),a=this.scrollBehaviorY.move(r.deltaY);this.moved||(this.moved=!0,this.hooks.trigger(this.hooks.eventTypes.scrollStart)),this.animater.translate({x:h,y:a}),this.dispatchScroll(n)}},gt.prototype.dispatchScroll=function(t){t-this.startTime>this.options.momentumLimitTime&&(this.startTime=t,this.scrollBehaviorX.updateStartPos(),this.scrollBehaviorY.updateStartPos(),1===this.options.probeType&&this.hooks.trigger(this.hooks.eventTypes.scroll,this.getCurrentPos())),1<this.options.probeType&&this.hooks.trigger(this.hooks.eventTypes.scroll,this.getCurrentPos())},gt.prototype.checkMomentum=function(t,e,o){return o-this.endTime>this.options.momentumLimitTime&&e<this.options.momentumLimitDistance&&t<this.options.momentumLimitDistance},gt.prototype.handleEnd=function(t){if(!this.hooks.trigger(this.hooks.eventTypes.beforeEnd,t)){var e=this.getCurrentPos();if(this.scrollBehaviorX.updateDirection(),this.scrollBehaviorY.updateDirection(),this.hooks.trigger(this.hooks.eventTypes.end,t,e))return!0;this.animater.translate(e),this.endTime=u();var o=this.endTime-this.startTime;this.hooks.trigger(this.hooks.eventTypes.scrollEnd,e,o)}},gt.prototype.handleClick=function(t){x(t.target,this.options.preventDefaultException)||(t.preventDefault(),t.stopPropagation())},gt.prototype.getCurrentPos=function(){return{x:this.scrollBehaviorX.getCurrentPos(),y:this.scrollBehaviorY.getCurrentPos()}},gt.prototype.refresh=function(){this.endTime=0},gt.prototype.destroy=function(){this.hooks.destroy()},gt);function gt(t,e,o,i,s){this.hooks=new R(["start","beforeMove","scrollStart","scroll","beforeEnd","end","scrollEnd"]),this.scrollBehaviorX=t,this.scrollBehaviorY=e,this.actionsHandler=o,this.animater=i,this.options=s,this.directionLockAction=new vt(s.directionLockThreshold,s.freeScroll,s.eventPassthrough),this.enabled=!0,this.bindActionsHandler()}function kt(o,t,e,i){var s=["momentum","momentumLimitTime","momentumLimitDistance","deceleration","swipeBounceTime","swipeTime","outOfBoundaryDampingFactor","specifiedIndexAsContent"].reduce(function(t,e){return t[e]=o[e],t},{});return s.scrollable=!!o[t],s.bounces=e,s.rect=i,s}function Tt(i,s,t){t.forEach(function(t){var e,o;"string"==typeof t?e=o=t:(e=t.source,o=t.target),i.on(e,function(){for(var t=[],e=0;e<arguments.length;e++)t[e]=arguments[e];return s.trigger.apply(s,p([o],t))})})}var bt=(St.prototype.init=function(){var t=this;this.bindTranslater(),this.bindAnimater(),this.bindActions(),this.hooks.on(this.hooks.eventTypes.scrollEnd,function(){t.togglePointerEvents(!0)})},St.prototype.registerTransitionEnd=function(){this.transitionEndRegister=new I(this.content,[{name:C.transitionEnd,handler:this.transitionEnd.bind(this)}])},St.prototype.bindTranslater=function(){var o=this,t=this.translater.hooks;t.on(t.eventTypes.beforeTranslate,function(t){o.options.translateZ&&t.push(o.options.translateZ)}),t.on(t.eventTypes.translate,function(t){var e=o.getCurrentPos();o.updatePositions(t),t.x===e.x&&t.y===e.y||o.togglePointerEvents(!1)})},St.prototype.bindAnimater=function(){var e=this;this.animater.hooks.on(this.animater.hooks.eventTypes.end,function(t){e.resetPosition(e.options.bounceTime)||(e.animater.setPending(!1),e.hooks.trigger(e.hooks.eventTypes.scrollEnd,t))}),Tt(this.animater.hooks,this.hooks,[{source:this.animater.hooks.eventTypes.move,target:this.hooks.eventTypes.scroll},{source:this.animater.hooks.eventTypes.forceStop,target:this.hooks.eventTypes.scrollEnd}])},St.prototype.bindActions=function(){var s=this,n=this.actions;Tt(n.hooks,this.hooks,[{source:n.hooks.eventTypes.start,target:this.hooks.eventTypes.beforeStart},{source:n.hooks.eventTypes.start,target:this.hooks.eventTypes.beforeScrollStart},{source:n.hooks.eventTypes.beforeMove,target:this.hooks.eventTypes.beforeMove},{source:n.hooks.eventTypes.scrollStart,target:this.hooks.eventTypes.scrollStart},{source:n.hooks.eventTypes.scroll,target:this.hooks.eventTypes.scroll},{source:n.hooks.eventTypes.beforeEnd,target:this.hooks.eventTypes.beforeEnd}]),n.hooks.on(n.hooks.eventTypes.end,function(t,e){return s.hooks.trigger(s.hooks.eventTypes.touchEnd,e),!!s.hooks.trigger(s.hooks.eventTypes.end,e)||(!(n.moved||(s.hooks.trigger(s.hooks.eventTypes.scrollCancel),!s.checkClick(t)))||(s.resetPosition(s.options.bounceTime,M.bounce)?(s.animater.setForceStopped(!1),!0):void 0))}),n.hooks.on(n.hooks.eventTypes.scrollEnd,function(t,e){var o=Math.abs(t.x-s.scrollBehaviorX.startPos),i=Math.abs(t.y-s.scrollBehaviorY.startPos);if(s.checkFlick(e,o,i))return s.animater.setForceStopped(!1),void s.hooks.trigger(s.hooks.eventTypes.flick);!s.momentum(t,e)&&(!s.animater.forceStopped||n.moved)?s.hooks.trigger(s.hooks.eventTypes.scrollEnd,t):s.animater.setForceStopped(!1)})},St.prototype.checkFlick=function(t,e,o){if(1<this.hooks.events.flick.length&&t<this.options.flickLimitTime&&e<this.options.flickLimitDistance&&o<this.options.flickLimitDistance&&(1<o||1<e))return!0},St.prototype.momentum=function(t,e){var o={time:0,easing:M.swiper,newX:t.x,newY:t.y},i=this.scrollBehaviorX.end(e),s=this.scrollBehaviorY.end(e);if(o.newX=f(i.destination)?o.newX:i.destination,o.newY=f(s.destination)?o.newY:s.destination,o.time=Math.max(i.duration,s.duration),this.hooks.trigger(this.hooks.eventTypes.momentum,o,this),o.newX!==t.x||o.newY!==t.y)return(o.newX>this.scrollBehaviorX.minScrollPos||o.newX<this.scrollBehaviorX.maxScrollPos||o.newY>this.scrollBehaviorY.minScrollPos||o.newY<this.scrollBehaviorY.maxScrollPos)&&(o.easing=M.swipeBounce),this.scrollTo(o.newX,o.newY,o.time,o.easing),!0},St.prototype.checkClick=function(t){var e,o,i,s=this.animater.forceStopped;if(this.hooks.trigger(this.hooks.eventTypes.checkClick))return this.animater.setForceStopped(!1),!0;if(s)return!1;var n,r,h=this.options.dblclick,a=!1;return h&&this.lastClickTime&&(r=void 0===(n=h.delay)?300:n,u()-this.lastClickTime<r&&(a=!0,O(t,"dblclick"))),this.options.tap&&(e=t,o=this.options.tap,(i=document.createEvent("Event")).initEvent(o,!0,!0),i.pageX=e.pageX,i.pageY=e.pageY,e.target.dispatchEvent(i)),this.options.click&&!x(t.target,this.options.preventDefaultException)&&O(t),this.lastClickTime=a?null:u(),!0},St.prototype.resize=function(){var t=this;this.actions.enabled&&(a&&(this.wrapper.scrollTop=0),clearTimeout(this.resizeTimeout),this.resizeTimeout=window.setTimeout(function(){t.hooks.trigger(t.hooks.eventTypes.resize)},this.options.resizePolling))},St.prototype.transitionEnd=function(t){t.target===this.content&&this.animater.pending&&(this.animater.transitionTime(),this.resetPosition(this.options.bounceTime,M.bounce)||(this.animater.setPending(!1),3!==this.options.probeType&&this.hooks.trigger(this.hooks.eventTypes.scrollEnd,this.getCurrentPos())))},St.prototype.togglePointerEvents=function(t){void 0===t&&(t=!0);for(var e=this.content.children.length?this.content.children:[this.content],o=t?"auto":"none",i=0;i<e.length;i++){var s=e[i];s.isBScrollContainer||(s.style.pointerEvents=o)}},St.prototype.refresh=function(t){var e=this.setContent(t);this.hooks.trigger(this.hooks.eventTypes.beforeRefresh),this.scrollBehaviorX.refresh(t),this.scrollBehaviorY.refresh(t),e&&(this.translater.setContent(t),this.animater.setContent(t),this.transitionEndRegister.destroy(),this.registerTransitionEnd(),this.options.bindToTarget&&this.actionsHandler.setContent(t)),this.actions.refresh(),this.wrapperOffset=b(this.wrapper)},St.prototype.setContent=function(t){var e=t!==this.content;return e&&(this.content=t),e},St.prototype.scrollBy=function(t,e,o,i){void 0===o&&(o=0);var s=this.getCurrentPos(),n=s.x,r=s.y;i=i||M.bounce,t+=n,e+=r,this.scrollTo(t,e,o,i)},St.prototype.scrollTo=function(t,e,o,i,s){void 0===o&&(o=0),void 0===i&&(i=M.bounce),void 0===s&&(s={start:{},end:{}});var n=this.options.useTransition?i.style:i.fn,r=this.getCurrentPos(),h=c({x:r.x,y:r.y},s.start),a=c({x:t,y:e},s.end);this.hooks.trigger(this.hooks.eventTypes.scrollTo,a),function(t,e){for(var o=0,i=Object.keys(t);o<i.length;o++){var s=i[o];if(t[s]!==e[s])return}return 1}(h,a)||this.animater.move(h,a,o,n)},St.prototype.scrollToElement=function(t,e,o,i,s){function n(t,e,o){return"number"==typeof t?t:t?Math.round(e/2-o/2):0}var r=g(t),h=b(r);o=n(o,r.offsetWidth,this.wrapper.offsetWidth),i=n(i,r.offsetHeight,this.wrapper.offsetHeight);function a(t,e,o,i){return t-=e,t=i.adjustPosition(t-o)}h.left=a(h.left,this.wrapperOffset.left,o,this.scrollBehaviorX),h.top=a(h.top,this.wrapperOffset.top,i,this.scrollBehaviorY),this.hooks.trigger(this.hooks.eventTypes.scrollToElement,r,h)||this.scrollTo(h.left,h.top,e,s)},St.prototype.resetPosition=function(t,e){void 0===t&&(t=0),void 0===e&&(e=M.bounce);var o=this.scrollBehaviorX.checkInBoundary(),i=o.position,s=o.inBoundary,n=this.scrollBehaviorY.checkInBoundary(),r=n.position,h=n.inBoundary;return(!s||!h)&&(l&&(this._reflow=this.content.offsetHeight),this.scrollTo(i,r,t,e),!0)},St.prototype.updatePositions=function(t){this.scrollBehaviorX.updatePosition(t.x),this.scrollBehaviorY.updatePosition(t.y)},St.prototype.getCurrentPos=function(){return this.actions.getCurrentPos()},St.prototype.enable=function(){this.actions.enabled=!0},St.prototype.disable=function(){H(this.animater.timer),this.actions.enabled=!1},St.prototype.destroy=function(){var e=this;["resizeRegister","transitionEndRegister","actionsHandler","actions","hooks","animater","translater","scrollBehaviorX","scrollBehaviorY"].forEach(function(t){return e[t].destroy()})},St);function St(t,e,o){this.wrapper=t,this.content=e,this.resizeTimeout=0,this.hooks=new R(["beforeStart","beforeMove","beforeScrollStart","scrollStart","scroll","beforeEnd","scrollEnd","resize","touchEnd","end","flick","scrollCancel","momentum","scrollTo","scrollToElement","beforeRefresh"]),this.options=o;var i,s,n,r,h,a,c=this.options.bounce,l=c.left,p=c.right,u=c.top,d=c.bottom;this.scrollBehaviorX=new pt(t,e,kt(o,"scrollX",[l,p],{size:"width",position:"left"})),this.scrollBehaviorY=new pt(t,e,kt(o,"scrollY",[u,d],{size:"height",position:"top"})),this.translater=new G(this.content),this.animater=(i=this.content,s=this.translater,n=this.options,r=n.useTransition,h={},Object.defineProperty(h,"probeType",{enumerable:!0,configurable:!1,get:function(){return n.probeType}}),new(r?ot:nt)(i,s,h)),this.actionsHandler=new Z(this.options.bindToTarget?this.content:t,(a=this.options,["click","bindToWrapper","disableMouse","disableTouch","preventDefault","stopPropagation","tagException","preventDefaultException","autoEndDistance"].reduce(function(t,e){return t[e]=a[e],t},{}))),this.actions=new mt(this.scrollBehaviorX,this.scrollBehaviorY,this.actionsHandler,this.animater,this.options);var f=this.resize.bind(this);this.resizeRegister=new I(window,[{name:"orientationchange",handler:f},{name:"resize",handler:f}]),this.registerTransitionEnd(),this.init()}var Pt,wt=(e(Et,Pt=R),Et.use=function(e){var t=e.pluginName;return Et.plugins.some(function(t){return e===t.ctor})||(f(t)?n("Plugin Class must specify plugin's name in static property by 'pluginName' field."):Et.pluginsMap[t]?n("This plugin has been registered, maybe you need change plugin's name"):(Et.pluginsMap[t]=!0,Et.plugins.push({name:t,applyOrder:e.applyOrder,ctor:e}))),Et},Et.prototype.setContent=function(t){var e=!1,o=!0,i=t.children[this.options.specifiedIndexAsContent];return i?(e=this.content!==i)&&(this.content=i):(n("The wrapper need at least one child element to be content element to scroll."),o=!1),{valid:o,contentChanged:e}},Et.prototype.init=function(t){var e=this;(this.wrapper=t).isBScrollContainer=!0,this.scroller=new bt(t,this.content,this.options),this.scroller.hooks.on(this.scroller.hooks.eventTypes.resize,function(){e.refresh()}),this.eventBubbling(),this.handleAutoBlur(),this.enable(),this.proxy(s),this.applyPlugins(),this.refreshWithoutReset(this.content);var o=this.options,i={x:o.startX,y:o.startY};this.hooks.trigger(this.hooks.eventTypes.beforeInitialScrollTo,i)||this.scroller.scrollTo(i.x,i.y)},Et.prototype.applyPlugins=function(){var o=this,i=this.options;Et.plugins.sort(function(t,e){var o,i=((o={}).pre=-1,o.post=1,o);return(t.applyOrder?i[t.applyOrder]:0)-(e.applyOrder?i[e.applyOrder]:0)}).forEach(function(t){var e=t.ctor;i[t.name]&&"function"==typeof e&&(o.plugins[t.name]=new e(o))})},Et.prototype.handleAutoBlur=function(){this.options.autoBlur&&this.on(this.eventTypes.beforeScrollStart,function(){var t=document.activeElement;!t||"INPUT"!==t.tagName&&"TEXTAREA"!==t.tagName||t.blur()})},Et.prototype.eventBubbling=function(){Tt(this.scroller.hooks,this,[this.eventTypes.beforeScrollStart,this.eventTypes.scrollStart,this.eventTypes.scroll,this.eventTypes.scrollEnd,this.eventTypes.scrollCancel,this.eventTypes.touchEnd,this.eventTypes.flick])},Et.prototype.refreshWithoutReset=function(t){this.scroller.refresh(t),this.hooks.trigger(this.hooks.eventTypes.refresh,t),this.trigger(this.eventTypes.refresh,t)},Et.prototype.proxy=function(t){var r=this;t.forEach(function(t){var e,o,i,s=t.key,n=t.sourceKey;e=r,o=n,i=s,K.get=function(){return function(t,e){for(var o=e.split("."),i=0;i<o.length-1;i++)if("object"!=typeof(t=t[o[i]])||!t)return;var s=o.pop();return"function"==typeof t[s]?function(){return t[s].apply(t,arguments)}:t[s]}(this,o)},K.set=function(t){!function(t,e,o){for(var i,s=e.split("."),n=0;n<s.length-1;n++)t[i=s[n]]||(t[i]={}),t=t[i];t[s.pop()]=o}(this,o,t)},Object.defineProperty(e,i,K)})},Et.prototype.refresh=function(){var t,e=this.setContent(this.wrapper),o=e.contentChanged;e.valid&&(t=this.content,this.refreshWithoutReset(t),o&&(this.hooks.trigger(this.hooks.eventTypes.contentChanged,t),this.trigger(this.eventTypes.contentChanged,t)),this.scroller.resetPosition())},Et.prototype.enable=function(){this.scroller.enable(),this.hooks.trigger(this.hooks.eventTypes.enable),this.trigger(this.eventTypes.enable)},Et.prototype.disable=function(){this.scroller.disable(),this.hooks.trigger(this.hooks.eventTypes.disable),this.trigger(this.eventTypes.disable)},Et.prototype.destroy=function(){this.hooks.trigger(this.hooks.eventTypes.destroy),this.trigger(this.eventTypes.destroy),this.scroller.destroy()},Et.prototype.eventRegister=function(t){this.registerType(t)},Et.plugins=[],Et.pluginsMap={},Et);function Et(t,e){var o=Pt.call(this,["refresh","contentChanged","enable","disable","beforeScrollStart","scrollStart","scroll","scrollEnd","scrollCancel","touchEnd","flick","destroy"])||this,i=g(t);return i?(o.plugins={},o.options=(new q).merge(e).process(),o.setContent(i).valid&&(o.hooks=new R(["refresh","enable","disable","destroy","beforeInitialScrollTo","contentChanged"]),o.init(i)),o):(n("Can not resolve the wrapper DOM."),o)}function Bt(t,e){return new wt(t,e)}Bt.use=wt.use,Bt.plugins=wt.plugins,Bt.pluginsMap=wt.pluginsMap;var Ct=Bt;t.Behavior=pt,t.CustomOptions=W,t.createBScroll=Bt,t.default=Ct,Object.defineProperty(t,"__esModule",{value:!0})}),"undefined"!=typeof window&&window.BScroll&&(window.BScroll=window.BScroll.default);