@egjs/conveyer/dist/conveyer.min.js

Conveyer adds Drag gestures to your Native Scroll.

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e,n,i,r=this.prevEvent,s=this._getCenter(t),o=r?this._getMovement(t):{x:0,y:0},a=r?this._getScale(t):1,u=r?(n=s.x-r.center.x,i=s.y-r.center.y,180*Math.atan2(i,n)/Math.PI):0,h=r?r.deltaX+o.x:o.x,c=r?r.deltaY+o.y:o.y,l=o.x,f=o.y,d=this._latestInterval,v=Date.now(),p=d?v-d.timestamp:0,_=r?r.velocityX:0,g=r?r.velocityY:0,m=r?r.directionX:1,b=r?r.directionY:1;return l>0?m=1:l<0&&(m=-1),f>0?b=1:f<0&&(b=-1),(!d||p>=16)&&(d&&(_=(e=[(h-d.deltaX)/p,(c-d.deltaY)/p])[0],g=e[1]),this._latestInterval={timestamp:v,deltaX:h,deltaY:c}),{srcEvent:t,scale:a,angle:u,center:s,deltaX:h,deltaY:c,offsetX:l,offsetY:f,directionX:m,directionY:b,velocityX:_,velocityY:g,preventSystemEvent:!0}},e._getDistance=function(t,e){var n=e.clientX-t.clientX,i=e.clientY-t.clientY;return Math.sqrt(n*n+i*i)},e._getButton=function(t){var e={1:B,2:X,4:F},n=this._isTouchEvent(t)?B:e[t.buttons];return n||null},e._isTouchEvent=function(t){return t.type&&t.type.indexOf("touch")>-1},e._isValidButton=function(t,e){return e.indexOf(t)>-1},e._isValidEvent=function(t,e,n){return(!e||wt(t,e))&&(!n||this._isValidButton(this._getButton(t),n))},e._preventMouseButton=function(t,e){e===X?L.addEventListener("contextmenu",this._stopContextMenu):e===F&&t.preventDefault()},t}(),Ot=function(t){function e(){var e=null!==t&&t.apply(this,arguments)||this;return e.start=["mousedown"],e.move=["mousemove"],e.end=["mouseup"],e}z(e,t);var n=e.prototype;return n.onEventStart=function(t,e,n){var i=this._getButton(t);return this._isValidEvent(t,e,n)?(this._preventMouseButton(t,i),this.extendEvent(t)):null},n.onEventMove=function(t,e,n){return this._isValidEvent(t,e,n)?this.extendEvent(t):null},n.onEventEnd=function(){},n.onRelease=function(){this.prevEvent=null},n.getTouches=function(t,e){return e&&this._isValidButton(H[t.which],e)&&-1===this.end.indexOf(t.type)?1:0},n._getScale=function(){return 1},n._getCenter=function(t){return{x:t.clientX,y:t.clientY}},n._getMovement=function(t){var e=this.prevEvent.srcEvent;return{x:t.clientX-e.clientX,y:t.clientY-e.clientY}},e}(Mt),Pt=function(t){function e(){var e=null!==t&&t.apply(this,arguments)||this;return e.start=["touchstart"],e.move=["touchmove"],e.end=["touchend","touchcancel"],e}z(e,t);var n=e.prototype;return n.onEventStart=function(t,e){return this._baseTouches=t.touches,this._isValidEvent(t,e)?this.extendEvent(t):null},n.onEventMove=function(t,e){return this._isValidEvent(t,e)?this.extendEvent(t):null},n.onEventEnd=function(t){this._baseTouches=t.touches},n.onRelease=function(){this.prevEvent=null,this._baseTouches=null},n.getTouches=function(t){return t.touches.length},n._getScale=function(t){return 2!==t.touches.length||this._baseTouches.length<2?null:this._getDistance(t.touches[0],t.touches[1])/this._getDistance(this._baseTouches[0],this._baseTouches[1])},n._getCenter=function(t){return{x:t.touches[0].clientX,y:t.touches[0].clientY}},n._getMovement=function(t){var e=this.prevEvent.srcEvent;return t.touches[0].identifier!==e.touches[0].identifier?{x:0,y:0}:{x:t.touches[0].clientX-e.touches[0].clientX,y:t.touches[0].clientY-e.touches[0].clientY}},e}(Mt),Tt=function(t){function e(){var e=null!==t&&t.apply(this,arguments)||this;return e.start=yt?["pointerdown"]:["MSPointerDown"],e.move=yt?["pointermove"]:["MSPointerMove"],e.end=yt?["pointerup","pointercancel"]:["MSPointerUp","MSPointerCancel"],e._firstInputs=[],e._recentInputs=[],e}z(e,t);var n=e.prototype;return n.onEventStart=function(t,e,n){var i=this._getButton(t);return this._isValidEvent(t,e,n)?(this._preventMouseButton(t,i),this._updatePointerEvent(t),this.extendEvent(t)):null},n.onEventMove=function(t,e,n){return this._isValidEvent(t,e,n)?(this._updatePointerEvent(t),this.extendEvent(t)):null},n.onEventEnd=function(t){this._removePointerEvent(t)},n.onRelease=function(){this.prevEvent=null,this._firstInputs=[],this._recentInputs=[]},n.getTouches=function(){return this._recentInputs.length},n._getScale=function(){return 2!==this._recentInputs.length?null:this._getDistance(this._recentInputs[0],this._recentInputs[1])/this._getDistance(this._firstInputs[0],this._firstInputs[1])},n._getCenter=function(t){return{x:t.clientX,y:t.clientY}},n._getMovement=function(t){var e=this.prevEvent.srcEvent;return t.pointerId!==e.pointerId?{x:0,y:0}:{x:t.clientX-e.clientX,y:t.clientY-e.clientY}},n._updatePointerEvent=function(t){var e=this,n=!1;this._recentInputs.forEach(function(i,r){i.pointerId===t.pointerId&&(n=!0,e._recentInputs[r]=t)}),n||(this._firstInputs.push(t),this._recentInputs.push(t))},n._removePointerEvent=function(t){this._firstInputs=this._firstInputs.filter(function(e){return e.pointerId!==t.pointerId}),this._recentInputs=this._recentInputs.filter(function(e){return e.pointerId!==t.pointerId})},e}(Mt),St=function(t){function e(){var e=null!==t&&t.apply(this,arguments)||this;return e.start=["mousedown","touchstart"],e.move=["mousemove","touchmove"],e.end=["mouseup","touchend","touchcancel"],e}z(e,t);var n=e.prototype;return n.onEventStart=function(t,e,n){var i=this._getButton(t);return this._isTouchEvent(t)&&(this._baseTouches=t.touches),this._isValidEvent(t,e,n)?(this._preventMouseButton(t,i),this.extendEvent(t)):null},n.onEventMove=function(t,e,n){return this._isValidEvent(t,e,n)?this.extendEvent(t):null},n.onEventEnd=function(t){this._isTouchEvent(t)&&(this._baseTouches=t.touches)},n.onRelease=function(){this.prevEvent=null,this._baseTouches=null},n.getTouches=function(t,e){return this._isTouchEvent(t)?t.touches.length:this._isValidButton(H[t.which],e)&&-1===this.end.indexOf(t.type)?1:0},n._getScale=function(t){return this._isTouchEvent(t)?2!==t.touches.length||this._baseTouches.length<2?1:this._getDistance(t.touches[0],t.touches[1])/this._getDistance(this._baseTouches[0],this._baseTouches[1]):this.prevEvent.scale},n._getCenter=function(t){return this._isTouchEvent(t)?{x:t.touches[0].clientX,y:t.touches[0].clientY}:{x:t.clientX,y:t.clientY}},n._getMovement=function(t){var e=this,n=[t,this.prevEvent.srcEvent].map(function(t){return e._isTouchEvent(t)?{id:t.touches[0].identifier,x:t.touches[0].clientX,y:t.touches[0].clientY}:{id:null,x:t.clientX,y:t.clientY}}),i=n[0],r=n[1];return i.id===r.id?{x:i.x-r.x,y:i.y-r.y}:{x:0,y:0}},e}(Mt),It=function(t,e){return e.reduce(function(e,n,i){return t[i]&&(e[t[i]]=n),e},{})},Dt=function(t){void 0===t&&(t=[]);var e=!1,n=!1,i=!1;return t.forEach(function(t){switch(t){case"mouse":n=!0;break;case"touch":e=Et;break;case"pointer":i=xt}}),i?new Tt:e&&n?new St:e?new Pt:n?new Ot:null};function At(t){return t.indexOf("touch")>-1&&{passive:!1}}var Ct=function(){function t(t){var e=t.options,n=t.interruptManager,i=t.eventManager,r=t.axisManager,s=t.animationManager;this._isOutside=!1,this._moveDistance=null,this._isStopped=!1,this.options=e,this._interruptManager=n,this._eventManager=i,this._axisManager=r,this._animationManager=s}var e=t.prototype;return e.get=function(t){return this._axisManager.get(t.axes)},e.hold=function(t,e){if(!this._interruptManager.isInterrupted()&&t.axes.length){var n={input:t,event:e};this._isStopped=!1,this._interruptManager.setInterrupt(!0),this._animationManager.stopAnimation(n),++this._eventManager.holdingCount,this._moveDistance||this._eventManager.hold(this._axisManager.get(),n),this._isOutside=this._axisManager.isOutside(t.axes),this._moveDistance=this._axisManager.get(t.axes)}},e.change=function(t,e,n,i){if(!this._isStopped&&this._interruptManager.isInterrupting()&&!this._axisManager.every(n,function(t){return 0===t})){var r=e.srcEvent?e.srcEvent:e;if(!r.__childrenAxesAlreadyChanged){var s,o=this._moveDistance||this._axisManager.get(t.axes);s=nt(o,function(t,e){return t+(n[e]||0)}),this._moveDistance&&(this._moveDistance=this._axisManager.map(s,function(t,e){var n=e.circular,i=e.range;return n&&(n[0]||n[1])?mt(t,i,n):t})),this._isOutside&&this._axisManager.every(o,function(t,e){return!_t(t,e.range)})&&(this._isOutside=!1),o=this._atOutside(o),s=this._atOutside(s),this.options.nested&&this._isEndofAxis(n,o,s)||(r.__childrenAxesAlreadyChanged=!0);var a={input:t,event:e};if(i){var u=this._animationManager.getDuration(s,o);this._animationManager.animateTo(s,u,a)}else{!this._eventManager.triggerChange(s,o,a,!0)&&(this._isStopped=!0,this._moveDistance=null,this._animationManager.finish(!1))}}}},e.release=function(t,e,n,i){if(!this._isStopped&&this._interruptManager.isInterrupting()&&this._moveDistance){var r=e.srcEvent?e.srcEvent:e;r.__childrenAxesAlreadyReleased&&(n=n.map(function(){return 0}));var s=this._axisManager.get(t.axes),o=this._axisManager.get(),a=this._animationManager.getDisplacement(n),u=It(t.axes,a),h=this._axisManager.get(this._axisManager.map(u,function(t,e,n){return e.circular&&(e.circular[0]||e.circular[1])?s[n]+t:pt(s[n]+t,e.range,e.circular,e.bounce)}));r.__childrenAxesAlreadyReleased=!0;var c=this._animationManager.getDuration(h,s,i);0===c&&(h=N({},o));var l={depaPos:o,destPos:h,duration:c,delta:this._axisManager.getDelta(o,h),inputEvent:e,input:t,isTrusted:!0};--this._eventManager.holdingCount,this._eventManager.triggerRelease(l),0===this._eventManager.holdingCount&&(this._moveDistance=null);var f=this._animationManager.getUserControl(l),d=st(f.destPos,o),v={input:t,event:e};d||0===f.duration?(d||this._eventManager.triggerChange(f.destPos,o,v,!0),this._interruptManager.setInterrupt(!1),this._axisManager.isOutside()?this._animationManager.restore(v):this._eventManager.triggerFinish(!0)):this._animationManager.animateTo(f.destPos,f.duration,v)}},e._atOutside=function(t){var e=this;return this._isOutside?this._axisManager.map(t,function(t,e){var n=e.range[0]-e.bounce[0],i=e.range[1]+e.bounce[1];return t>i?i:t<n?n:t}):this._axisManager.map(t,function(t,n){var i=n.range[0],r=n.range[1],s=n.bounce,o=n.circular;return o[0]&&t<i||o[1]&&t>r?t:t<i?i-e._animationManager.interpolate(i-t,s[0]):t>r?r+e._animationManager.interpolate(t-r,s[1]):t})},e._isEndofAxis=function(t,e,n){return this._axisManager.every(e,function(i,r,s){return 0===t[s]||e[s]===n[s]&&(o=i,a=r.range,u=r.bounce,!(h=r.circular)[0]&&o===a[0]-u[0]||!h[1]&&o===a[1]+u[1]);var o,a,u,h})},t}(),Rt=function(t,e,n){return Math.max(Math.min(t,n),e)},jt=function(t){function e(){var e=null!==t&&t.apply(this,arguments)||this;return e._useDuration=!0,e}z(e,t);var n=e.prototype;return n.interpolate=function(t,e){var n=this._easing(1e-5)/1e-5;return this._easing(t/(e*n))*e},n.updateAnimation=function(t){var e,n=this._animateParam;if(n){var i=(new Date).getTime()-n.startTime,r=(null==t?void 0:t.destPos)||n.destPos,s=null!==(e=null==t?void 0:t.duration)&&void 0!==e?e:n.duration;if((null==t?void 0:t.restart)||s<=i)this.setTo(r,s-i);else{if(null==t?void 0:t.destPos){var o=this.axisManager.get();this._initialEasingPer=this._prevEasingPer,n.delta=this.axisManager.getDelta(o,r),n.destPos=r}if(null==t?void 0:t.duration){var a=(i+this._durationOffset)/n.duration;this._durationOffset=a*s-i,n.duration=s}}}},n._initState=function(t){return this._initialEasingPer=0,this._prevEasingPer=0,this._durationOffset=0,{pos:t.depaPos,easingPer:0,finished:!1}},n._getNextState=function(t){var e=this,n=this._animateParam,i=t.pos,r=n.destPos,s=nt(i,function(t,e){return t<=r[e]?1:-1}),o=((new Date).getTime()-n.startTime+this._durationOffset)/n.duration,a=this._easing(o),u=this.axisManager.map(i,function(t,u,h){var c=o>=1?r[h]:t+n.delta[h]*(a-e._prevEasingPer)/(1-e._initialEasingPer),l=mt(c,u.range,u.circular);if(c!==l){var f=s[h]*(u.range[1]-u.range[0]);r[h]-=f,i[h]-=f}return l});return this._prevEasingPer=a,{pos:u,easingPer:a,finished:a>=1}},n._easing=function(t){return t>1?1:this._options.easing(t)},e}(function(){function t(t){var e=t.options,n=t.interruptManager,i=t.eventManager,r=t.axisManager;this._options=e,this.interruptManager=n,this.eventManager=i,this.axisManager=r,this.animationEnd=this.animationEnd.bind(this)}var e=t.prototype;return e.getDuration=function(t,e,n){var i,r=this;if(void 0!==n)i=n;else{var s=nt(e,function(e,n){return function(t,e){var n=Math.sqrt(t/e*2);return n<100?0:n}(Math.abs(e-t[n]),r._options.deceleration)});i=Object.keys(s).reduce(function(t,e){return Math.max(t,s[e])},-1/0)}return Rt(i,this._options.minimumDuration,this._options.maximumDuration)},e.getDisplacement=function(t){var e=Math.pow(t.reduce(function(t,e){return t+e*e},0),1/t.length),n=Math.abs(e/-this._options.deceleration);return t.map(function(t){return t/2*n})},e.stopAnimation=function(t){if(this._animateParam){var e=this.axisManager.get(),n=this.axisManager.map(e,function(t,e){return mt(t,e.range,e.circular)});rt(n,function(t,n){return e[n]===t})||this.eventManager.triggerChange(n,e,t,!!t),this._animateParam=null,this._raf&&(i=this._raf,$(i)),this._raf=null,this.eventManager.triggerAnimationEnd(!!(null==t?void 0:t.event))}var i},e.getEventInfo=function(){return this._animateParam&&this._animateParam.input&&this._animateParam.inputEvent?{input:this._animateParam.input,event:this._animateParam.inputEvent}:null},e.restore=function(t){var e=this.axisManager.get(),n=this.axisManager.map(e,function(t,e){return Math.min(e.range[1],Math.max(e.range[0],t))});this.stopAnimation(),this.animateTo(n,this.getDuration(e,n),t)},e.animationEnd=function(){var t=this.getEventInfo();this._animateParam=null;var e=this.axisManager.filter(this.axisManager.get(),function(t,e){return gt(t,e.range,e.circular)});Object.keys(e).length>0&&this.setTo(this.axisManager.map(e,function(t,e){return mt(t,e.range,e.circular)})),this.interruptManager.setInterrupt(!1),this.eventManager.triggerAnimationEnd(!!t),this.axisManager.isOutside()?this.restore(t):this.finish(!!t)},e.finish=function(t){this._animateParam=null,this.interruptManager.setInterrupt(!1),this.eventManager.triggerFinish(t)},e.getUserControl=function(t){var e=t.setTo();return e.destPos=this.axisManager.get(e.destPos),e.duration=Rt(e.duration,this._options.minimumDuration,this._options.maximumDuration),e},e.animateTo=function(t,e,n){var i=this;this.stopAnimation();var r=this._createAnimationParam(t,e,n),s=N({},r.depaPos),o=this.eventManager.triggerAnimationStart(r),a=this.getUserControl(r);if(!o&&this.axisManager.every(a.destPos,function(t,e){return gt(t,e.range,e.circular)}),o&&!st(a.destPos,s)){var u=(null==n?void 0:n.event)||null;this._animateLoop({depaPos:s,destPos:a.destPos,duration:a.duration,delta:this.axisManager.getDelta(s,a.destPos),isTrusted:!!u,inputEvent:u,input:(null==n?void 0:n.input)||null},function(){return i.animationEnd()})}},e.setTo=function(t,e){void 0===e&&(e=0);var n=Object.keys(t),i=this.axisManager.get(n);if(st(t,i))return this;this.interruptManager.setInterrupt(!0);var r=it(t,function(t,e){return i[e]!==t});return Object.keys(r).length?(r=this.axisManager.map(r,function(t,e){var n=e.range,i=e.circular;return i&&(i[0]||i[1])?t:pt(t,n,i)}),st(r,i)||(e>0?this.animateTo(r,e):(this.stopAnimation(),this.eventManager.triggerChange(r),this.finish(!1))),this):this},e.setBy=function(t,e){return void 0===e&&(e=0),this.setTo(nt(this.axisManager.get(Object.keys(t)),function(e,n){return e+t[n]}),e)},e.setOptions=function(t){this._options=N(N({},this._options),t)},e._createAnimationParam=function(t,e,n){var i=this.axisManager.get(),r=t,s=(null==n?void 0:n.event)||null;return{depaPos:i,destPos:r,duration:Rt(e,this._options.minimumDuration,this._options.maximumDuration),delta:this.axisManager.getDelta(i,r),inputEvent:s,input:(null==n?void 0:n.input)||null,isTrusted:!!s,done:this.animationEnd}},e._animateLoop=function(t,e){var n=this;if(t.duration){this._animateParam=N(N({},t),{startTime:(new Date).getTime()});var i=nt(t.destPos,function(t){return t}),r=this._initState(this._animateParam),s=function(){n._raf=null;var t=n._animateParam,o=n._getNextState(r),a=!n.eventManager.triggerChange(o.pos,r.pos);if(r=o,o.finished)return t.destPos=n._getFinalPos(t.destPos,i),st(t.destPos,n.axisManager.get(Object.keys(t.destPos)))||n.eventManager.triggerChange(t.destPos,o.pos),void e();a?n.finish(!1):n._raf=J(s)};s()}else this.eventManager.triggerChange(t.destPos),e()},e._getFinalPos=function(t,e){var n=this,i=1e-6;return nt(t,function(t,r){if(t>=e[r]-i&&t<=e[r]+i)return e[r];var s=n._getRoundUnit(t,r);return at(t,s)})},e._getRoundUnit=function(t,e){var n,i=this._options.round,r=null;if(!i){var s=this.axisManager.getAxisOptions(e);n=Math.max(ht(s.range[0]),ht(s.range[1]),ht(t)),r=1/Math.pow(10,n)}return 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