/**
 * Skipped minification because the original files appears to be already minified.
 * Do NOT use SRI with dynamically generated files! More information: https://www.jsdelivr.com/using-sri-with-dynamic-files
 */
 !function(t,e){"object"==typeof exports&&"undefined"!=typeof module?e(exports):"function"==typeof define&&define.amd?define(["exports"],e):e((t=t||self).St={})}(this,(function(t){"use strict";class e{constructor(t,e){this.state={angle:0,area:[],position:{x:0,y:0},hardAngle:0,hardDrawingAngle:0},this.createdDensity=e,this.nowDrawingDensity=this.createdDensity,this.render=t}setDensity(t){this.createdDensity=t,this.nowDrawingDensity=t}setDrawingDensity(t){this.nowDrawingDensity=t}setPosition(t){this.state.position=t}setAngle(t){this.state.angle=t}setArea(t){this.state.area=t}setHardDrawingAngle(t){this.state.hardDrawingAngle=t}setHardAngle(t){this.state.hardAngle=t,this.state.hardDrawingAngle=t}setOrientation(t){this.orientation=t}getDrawingDensity(){return this.nowDrawingDensity}getDensity(){return this.createdDensity}getHardAngle(){return this.state.hardAngle}}class i extends e{constructor(t,e,i){super(t,i),this.image=null,this.isLoad=!1,this.loadingAngle=0,this.image=new Image,this.image.src=e}draw(t){const e=this.render.getContext(),i=this.render.convertToGlobal(this.state.position),s=this.render.getRect().pageWidth,n=this.render.getRect().height;e.save(),e.translate(i.x,i.y),e.beginPath();for(let t of this.state.area)null!==t&&(t=this.render.convertToGlobal(t),e.lineTo(t.x-i.x,t.y-i.y));e.rotate(this.state.angle),e.clip(),this.isLoad?e.drawImage(this.image,0,0,s,n):this.drawLoader(e,{x:0,y:0},s,n),e.restore()}simpleDraw(t){const e=this.render.getRect(),i=this.render.getContext(),s=e.pageWidth,n=e.height,h=1===t?e.left+e.pageWidth:e.left,r=e.top;this.isLoad?i.drawImage(this.image,h,r,s,n):this.drawLoader(i,{x:h,y:r},s,n)}drawLoader(t,e,i,s){t.beginPath(),t.strokeStyle="rgb(200, 200, 200)",t.fillStyle="rgb(255, 255, 255)",t.lineWidth=1,t.rect(e.x+1,e.y+1,i-1,s-1),t.stroke(),t.fill();const n={x:e.x+i/2,y:e.y+s/2};t.beginPath(),t.lineWidth=10,t.arc(n.x,n.y,20,this.loadingAngle,3*Math.PI/2+this.loadingAngle),t.stroke(),t.closePath(),this.loadingAngle+=.07,this.loadingAngle>=2*Math.PI&&(this.loadingAngle=0)}load(){this.isLoad||(this.image.onload=()=>{this.isLoad=!0})}newTemporaryCopy(){return this}getTemporaryCopy(){return this}hideTemporaryCopy(){}}class s{constructor(t,e){this.pages=[],this.currentPageIndex=0,this.currentSpreadIndex=0,this.landscapeSpread=[],this.portraitSpread=[],this.render=e,this.app=t,this.currentPageIndex=0,this.isShowCover=this.app.getSettings().showCover}destroy(){this.pages=[]}createSpread(){this.landscapeSpread=[],this.portraitSpread=[];for(let t=0;t<this.pages.length;t++)this.portraitSpread.push([t]);let t=0;this.isShowCover&&(this.pages[0].setDensity("hard"),this.landscapeSpread.push([t]),t++);for(let e=t;e<this.pages.length;e+=2)e<this.pages.length-1?this.landscapeSpread.push([e,e+1]):(this.landscapeSpread.push([e]),this.pages[e].setDensity("hard"))}getSpread(){return"landscape"===this.render.getOrientation()?this.landscapeSpread:this.portraitSpread}getSpreadIndexByPage(t){const e=this.getSpread();for(let i=0;i<e.length;i++)if(t===e[i][0]||t===e[i][1])return i;return null}getPageCount(){return this.pages.length}getPages(){return this.pages}getPage(t){if(t>=0&&t<this.pages.length)return this.pages[t];throw new Error("Invalid page number")}nextBy(t){const e=this.pages.indexOf(t);return e<this.pages.length-1?this.pages[e+1]:null}prevBy(t){const e=this.pages.indexOf(t);return e>0?this.pages[e-1]:null}getFlippingPage(t){const e=this.currentSpreadIndex;if("portrait"===this.render.getOrientation())return 0===t?this.pages[e].newTemporaryCopy():this.pages[e-1];{const i=0===t?this.getSpread()[e+1]:this.getSpread()[e-1];return 1===i.length||0===t?this.pages[i[0]]:this.pages[i[1]]}}getBottomPage(t){const e=this.currentSpreadIndex;if("portrait"===this.render.getOrientation())return 0===t?this.pages[e+1]:this.pages[e-1];{const i=0===t?this.getSpread()[e+1]:this.getSpread()[e-1];return 1===i.length?this.pages[i[0]]:0===t?this.pages[i[1]]:this.pages[i[0]]}}showNext(){this.currentSpreadIndex<this.getSpread().length&&(this.currentSpreadIndex++,this.showSpread())}showPrev(){this.currentSpreadIndex>0&&(this.currentSpreadIndex--,this.showSpread())}getCurrentPageIndex(){return this.currentPageIndex}show(t=null){if(null===t&&(t=this.currentPageIndex),t<0||t>=this.pages.length)return;const e=this.getSpreadIndexByPage(t);null!==e&&(this.currentSpreadIndex=e,this.showSpread())}getCurrentSpreadIndex(){return this.currentSpreadIndex}setCurrentSpreadIndex(t){if(!(t>=0&&t<this.getSpread().length))throw new Error("Invalid page");this.currentSpreadIndex=t}showSpread(){const t=this.getSpread()[this.currentSpreadIndex];2===t.length?(this.render.setLeftPage(this.pages[t[0]]),this.render.setRightPage(this.pages[t[1]])):"landscape"===this.render.getOrientation()&&t[0]===this.pages.length-1?(this.render.setLeftPage(this.pages[t[0]]),this.render.setRightPage(null)):(this.render.setLeftPage(null),this.render.setRightPage(this.pages[t[0]])),this.currentPageIndex=t[0],this.app.updatePageIndex(this.currentPageIndex)}}class n extends s{constructor(t,e,i){super(t,e),this.imagesHref=i}load(){for(const t of this.imagesHref){const e=new i(this.render,t,"soft");e.load(),this.pages.push(e)}this.createSpread()}}class h{static GetDistanceBetweenTwoPoint(t,e){return null===t||null===e?1/0:Math.sqrt(Math.pow(e.x-t.x,2)+Math.pow(e.y-t.y,2))}static GetSegmentLength(t){return h.GetDistanceBetweenTwoPoint(t[0],t[1])}static GetAngleBetweenTwoLine(t,e){const i=t[0].y-t[1].y,s=e[0].y-e[1].y,n=t[1].x-t[0].x,h=e[1].x-e[0].x;return Math.acos((i*s+n*h)/(Math.sqrt(i*i+n*n)*Math.sqrt(s*s+h*h)))}static PointInRect(t,e){return null===e?null:e.x>=t.left&&e.x<=t.width+t.left&&e.y>=t.top&&e.y<=t.top+t.height?e:null}static GetRotatedPoint(t,e,i){return{x:t.x*Math.cos(i)+t.y*Math.sin(i)+e.x,y:t.y*Math.cos(i)-t.x*Math.sin(i)+e.y}}static LimitPointToCircle(t,e,i){if(h.GetDistanceBetweenTwoPoint(t,i)<=e)return i;const s=t.x,n=t.y,r=i.x,o=i.y;let a=Math.sqrt(Math.pow(e,2)*Math.pow(s-r,2)/(Math.pow(s-r,2)+Math.pow(n-o,2)))+s;i.x<0&&(a*=-1);let g=(a-s)*(n-o)/(s-r)+n;return s-r+n===0&&(g=e),{x:a,y:g}}static GetIntersectBetweenTwoSegment(t,e,i){return h.PointInRect(t,h.GetIntersectBeetwenTwoLine(e,i))}static GetIntersectBeetwenTwoLine(t,e){const i=t[0].y-t[1].y,s=e[0].y-e[1].y,n=t[1].x-t[0].x,h=e[1].x-e[0].x,r=t[0].x*t[1].y-t[1].x*t[0].y,o=e[0].x*e[1].y-e[1].x*e[0].y,a=i*o-s*r,g=n*o-h*r,l=-(r*h-o*n)/(i*h-s*n),d=-(i*o-s*r)/(i*h-s*n);if(isFinite(l)&&isFinite(d))return{x:l,y:d};if(Math.abs(a-g)<.1)throw new Error("Segment included");return null}static GetCordsFromTwoPoint(t,e){const i=Math.abs(t.x-e.x),s=Math.abs(t.y-e.y),n=Math.max(i,s),h=[t];function r(t,e,i,s,n){return e>t?t+n*(i/s):e<t?t-n*(i/s):t}for(let o=1;o<=n;o+=1)h.push({x:r(t.x,e.x,i,n,o),y:r(t.y,e.y,s,n,o)});return h}}class r extends e{constructor(t,e,i){super(t,i),this.copiedElement=null,this.temporaryCopy=null,this.isLoad=!1,this.element=e,this.element.classList.add("stf__item"),this.element.classList.add("--"+i)}newTemporaryCopy(){return"hard"===this.nowDrawingDensity?this:(null===this.temporaryCopy&&(this.copiedElement=this.element.cloneNode(!0),this.element.parentElement.appendChild(this.copiedElement),this.temporaryCopy=new r(this.render,this.copiedElement,this.nowDrawingDensity)),this.getTemporaryCopy())}getTemporaryCopy(){return this.temporaryCopy}hideTemporaryCopy(){null!==this.temporaryCopy&&(this.copiedElement.remove(),this.copiedElement=null,this.temporaryCopy=null)}draw(t){const e=t||this.nowDrawingDensity,i=this.render.convertToGlobal(this.state.position),s=this.render.getRect().pageWidth,n=this.render.getRect().height;this.element.classList.remove("--simple");const h=`\n            display: block;\n            z-index: ${this.element.style.zIndex};\n            left: 0;\n            top: 0;\n            width: ${s}px;\n            height: ${n}px;\n        `;"hard"===e?this.drawHard(h):this.drawSoft(i,h)}drawHard(t=""){const e=this.render.getRect().left+this.render.getRect().width/2,i=this.state.hardDrawingAngle,s=t+"\n                backface-visibility: hidden;\n                -webkit-backface-visibility: hidden;\n                clip-path: none;\n                -webkit-clip-path: none;\n            "+(0===this.orientation?`transform-origin: ${this.render.getRect().pageWidth}px 0; \n                   transform: translate3d(0, 0, 0) rotateY(${i}deg);`:`transform-origin: 0 0; \n                   transform: translate3d(${e}px, 0, 0) rotateY(${i}deg);`);this.element.style.cssText=s}drawSoft(t,e=""){let i="polygon( ";for(const t of this.state.area)if(null!==t){let e=1===this.render.getDirection()?{x:-t.x+this.state.position.x,y:t.y-this.state.position.y}:{x:t.x-this.state.position.x,y:t.y-this.state.position.y};e=h.GetRotatedPoint(e,{x:0,y:0},this.state.angle),i+=e.x+"px "+e.y+"px, "}i=i.slice(0,-2),i+=")";const s=e+`transform-origin: 0 0; clip-path: ${i}; -webkit-clip-path: ${i};`+(this.render.isSafari()&&0===this.state.angle?`transform: translate(${t.x}px, ${t.y}px);`:`transform: translate3d(${t.x}px, ${t.y}px, 0) rotate(${this.state.angle}rad);`);this.element.style.cssText=s}simpleDraw(t){const e=this.render.getRect(),i=e.pageWidth,s=e.height,n=1===t?e.left+e.pageWidth:e.left,h=e.top;this.element.classList.add("--simple"),this.element.style.cssText=`\n            position: absolute; \n            display: block; \n            height: ${s}px; \n            left: ${n}px; \n            top: ${h}px; \n            width: ${i}px; \n            z-index: ${this.render.getSettings().startZIndex+1};`}getElement(){return this.element}load(){this.isLoad=!0}setOrientation(t){super.setOrientation(t),this.element.classList.remove("--left","--right"),this.element.classList.add(1===t?"--right":"--left")}setDrawingDensity(t){this.element.classList.remove("--soft","--hard"),this.element.classList.add("--"+t),super.setDrawingDensity(t)}}class o extends s{constructor(t,e,i,s){super(t,e),this.element=i,this.pagesElement=s}load(){for(const t of this.pagesElement){const e=new r(this.render,t,"hard"===t.dataset.density?"hard":"soft");e.load(),this.pages.push(e)}this.createSpread()}}class a{constructor(t,e,i,s){this.direction=t,this.corner=e,this.topIntersectPoint=null,this.sideIntersectPoint=null,this.bottomIntersectPoint=null,this.pageWidth=parseInt(i,10),this.pageHeight=parseInt(s,10)}calc(t){try{return this.position=this.calcAngleAndPosition(t),this.calculateIntersectPoint(this.position),!0}catch(t){return!1}}getFlippingClipArea(){const t=[];let e=!1;return t.push(this.rect.topLeft),t.push(this.topIntersectPoint),null===this.sideIntersectPoint?e=!0:(t.push(this.sideIntersectPoint),null===this.bottomIntersectPoint&&(e=!1)),t.push(this.bottomIntersectPoint),(e||"bottom"===this.corner)&&t.push(this.rect.bottomLeft),t}getBottomClipArea(){const t=[];return t.push(this.topIntersectPoint),"top"===this.corner?t.push({x:this.pageWidth,y:0}):(null!==this.topIntersectPoint&&t.push({x:this.pageWidth,y:0}),t.push({x:this.pageWidth,y:this.pageHeight})),null!==this.sideIntersectPoint?h.GetDistanceBetweenTwoPoint(this.sideIntersectPoint,this.topIntersectPoint)>=10&&t.push(this.sideIntersectPoint):"top"===this.corner&&t.push({x:this.pageWidth,y:this.pageHeight}),t.push(this.bottomIntersectPoint),t.push(this.topIntersectPoint),t}getAngle(){return 0===this.direction?-this.angle:this.angle}getRect(){return this.rect}getPosition(){return this.position}getActiveCorner(){return 0===this.direction?this.rect.topLeft:this.rect.topRight}getDirection(){return this.direction}getFlippingProgress(){return Math.abs((this.position.x-this.pageWidth)/(2*this.pageWidth)*100)}getCorner(){return this.corner}getBottomPagePosition(){return 1===this.direction?{x:this.pageWidth,y:0}:{x:0,y:0}}getShadowStartPoint(){return"top"===this.corner?this.topIntersectPoint:null!==this.sideIntersectPoint?this.sideIntersectPoint:this.topIntersectPoint}getShadowAngle(){const t=h.GetAngleBetweenTwoLine(this.getSegmentToShadowLine(),[{x:0,y:0},{x:this.pageWidth,y:0}]);return 0===this.direction?t:Math.PI-t}calcAngleAndPosition(t){let e=t;if(this.updateAngleAndGeometry(e),e="top"===this.corner?this.checkPositionAtCenterLine(e,{x:0,y:0},{x:0,y:this.pageHeight}):this.checkPositionAtCenterLine(e,{x:0,y:this.pageHeight},{x:0,y:0}),Math.abs(e.x-this.pageWidth)<1&&Math.abs(e.y)<1)throw new Error("Point is too small");return e}updateAngleAndGeometry(t){this.angle=this.calculateAngle(t),this.rect=this.getPageRect(t)}calculateAngle(t){const e=this.pageWidth-t.x+1,i="bottom"===this.corner?this.pageHeight-t.y:t.y;let s=2*Math.acos(e/Math.sqrt(i*i+e*e));i<0&&(s=-s);const n=Math.PI-s;if(!isFinite(s)||n>=0&&n<.003)throw new Error("The G point is too small");return"bottom"===this.corner&&(s=-s),s}getPageRect(t){return"top"===this.corner?this.getRectFromBasePoint([{x:0,y:0},{x:this.pageWidth,y:0},{x:0,y:this.pageHeight},{x:this.pageWidth,y:this.pageHeight}],t):this.getRectFromBasePoint([{x:0,y:-this.pageHeight},{x:this.pageWidth,y:-this.pageHeight},{x:0,y:0},{x:this.pageWidth,y:0}],t)}getRectFromBasePoint(t,e){return{topLeft:this.getRotatedPoint(t[0],e),topRight:this.getRotatedPoint(t[1],e),bottomLeft:this.getRotatedPoint(t[2],e),bottomRight:this.getRotatedPoint(t[3],e)}}getRotatedPoint(t,e){return{x:t.x*Math.cos(this.angle)+t.y*Math.sin(this.angle)+e.x,y:t.y*Math.cos(this.angle)-t.x*Math.sin(this.angle)+e.y}}calculateIntersectPoint(t){const e={left:-1,top:-1,width:this.pageWidth+2,height:this.pageHeight+2};"top"===this.corner?(this.topIntersectPoint=h.GetIntersectBetweenTwoSegment(e,[t,this.rect.topRight],[{x:0,y:0},{x:this.pageWidth,y:0}]),this.sideIntersectPoint=h.GetIntersectBetweenTwoSegment(e,[t,this.rect.bottomLeft],[{x:this.pageWidth,y:0},{x:this.pageWidth,y:this.pageHeight}]),this.bottomIntersectPoint=h.GetIntersectBetweenTwoSegment(e,[this.rect.bottomLeft,this.rect.bottomRight],[{x:0,y:this.pageHeight},{x:this.pageWidth,y:this.pageHeight}])):(this.topIntersectPoint=h.GetIntersectBetweenTwoSegment(e,[this.rect.topLeft,this.rect.topRight],[{x:0,y:0},{x:this.pageWidth,y:0}]),this.sideIntersectPoint=h.GetIntersectBetweenTwoSegment(e,[t,this.rect.topLeft],[{x:this.pageWidth,y:0},{x:this.pageWidth,y:this.pageHeight}]),this.bottomIntersectPoint=h.GetIntersectBetweenTwoSegment(e,[this.rect.bottomLeft,this.rect.bottomRight],[{x:0,y:this.pageHeight},{x:this.pageWidth,y:this.pageHeight}]))}checkPositionAtCenterLine(t,e,i){let s=t;const n=h.LimitPointToCircle(e,this.pageWidth,s);s!==n&&(s=n,this.updateAngleAndGeometry(s));const r=Math.sqrt(Math.pow(this.pageWidth,2)+Math.pow(this.pageHeight,2));let o=this.rect.bottomRight,a=this.rect.topLeft;if("bottom"===this.corner&&(o=this.rect.topRight,a=this.rect.bottomLeft),o.x<=0){const t=h.LimitPointToCircle(i,r,a);t!==s&&(s=t,this.updateAngleAndGeometry(s))}return s}getSegmentToShadowLine(){const t=this.getShadowStartPoint();return[t,t!==this.sideIntersectPoint&&null!==this.sideIntersectPoint?this.sideIntersectPoint:this.bottomIntersectPoint]}}class g{constructor(t,e){this.flippingPage=null,this.bottomPage=null,this.calc=null,this.state="read",this.render=t,this.app=e}fold(t){this.setState("user_fold"),null===this.calc&&this.start(t),this.do(this.render.convertToPage(t))}flip(t){if(this.app.getSettings().disableFlipByClick&&!this.isPointOnCorners(t))return;if(null!==this.calc&&this.render.finishAnimation(),!this.start(t))return;const e=this.getBoundsRect();this.setState("flipping");const i=e.height/10,s="bottom"===this.calc.getCorner()?e.height-i:i,n="bottom"===this.calc.getCorner()?e.height:0;this.calc.calc({x:e.pageWidth-i,y:s}),this.animateFlippingTo({x:e.pageWidth-i,y:s},{x:-e.pageWidth,y:n},!0)}start(t){this.reset();const e=this.render.convertToBook(t),i=this.getBoundsRect(),s=this.getDirectionByPoint(e),n=e.y>=i.height/2?"bottom":"top";if(!this.checkDirection(s))return!1;try{if(this.flippingPage=this.app.getPageCollection().getFlippingPage(s),this.bottomPage=this.app.getPageCollection().getBottomPage(s),"landscape"===this.render.getOrientation())if(1===s){const t=this.app.getPageCollection().nextBy(this.flippingPage);null!==t&&this.flippingPage.getDensity()!==t.getDensity()&&(this.flippingPage.setDrawingDensity("hard"),t.setDrawingDensity("hard"))}else{const t=this.app.getPageCollection().prevBy(this.flippingPage);null!==t&&this.flippingPage.getDensity()!==t.getDensity()&&(this.flippingPage.setDrawingDensity("hard"),t.setDrawingDensity("hard"))}return this.render.setDirection(s),this.calc=new a(s,n,i.pageWidth.toString(10),i.height.toString(10)),!0}catch(t){return!1}}do(t){if(null!==this.calc&&this.calc.calc(t)){const t=this.calc.getFlippingProgress();this.bottomPage.setArea(this.calc.getBottomClipArea()),this.bottomPage.setPosition(this.calc.getBottomPagePosition()),this.bottomPage.setAngle(0),this.bottomPage.setHardAngle(0),this.flippingPage.setArea(this.calc.getFlippingClipArea()),this.flippingPage.setPosition(this.calc.getActiveCorner()),this.flippingPage.setAngle(this.calc.getAngle()),0===this.calc.getDirection()?this.flippingPage.setHardAngle(90*(200-2*t)/100):this.flippingPage.setHardAngle(-90*(200-2*t)/100),this.render.setPageRect(this.calc.getRect()),this.render.setBottomPage(this.bottomPage),this.render.setFlippingPage(this.flippingPage),this.render.setShadowData(this.calc.getShadowStartPoint(),this.calc.getShadowAngle(),t,this.calc.getDirection())}}flipToPage(t,e){const i=this.app.getPageCollection().getCurrentSpreadIndex(),s=this.app.getPageCollection().getSpreadIndexByPage(t);try{s>i&&(this.app.getPageCollection().setCurrentSpreadIndex(s-1),this.flipNext(e)),s<i&&(this.app.getPageCollection().setCurrentSpreadIndex(s+1),this.flipPrev(e))}catch(t){}}flipNext(t){this.flip({x:this.render.getRect().left+2*this.render.getRect().pageWidth-10,y:"top"===t?1:this.render.getRect().height-2})}flipPrev(t){this.flip({x:10,y:"top"===t?1:this.render.getRect().height-2})}stopMove(){if(null===this.calc)return;const t=this.calc.getPosition(),e=this.getBoundsRect(),i="bottom"===this.calc.getCorner()?e.height:0;t.x<=0?this.animateFlippingTo(t,{x:-e.pageWidth,y:i},!0):this.animateFlippingTo(t,{x:e.pageWidth,y:i},!1)}showCorner(t){if(!this.checkState("read","fold_corner"))return;const e=this.getBoundsRect(),i=e.pageWidth;if(this.isPointOnCorners(t))if(null===this.calc){if(!this.start(t))return;this.setState("fold_corner"),this.calc.calc({x:i-1,y:1});const s=50,n="bottom"===this.calc.getCorner()?e.height-1:1,h="bottom"===this.calc.getCorner()?e.height-s:s;this.animateFlippingTo({x:i-1,y:n},{x:i-s,y:h},!1,!1)}else this.do(this.render.convertToPage(t));else this.setState("read"),this.render.finishAnimation(),this.stopMove()}animateFlippingTo(t,e,i,s=!0){const n=h.GetCordsFromTwoPoint(t,e),r=[];for(const t of n)r.push(()=>this.do(t));const o=this.getAnimationDuration(n.length);this.render.startAnimation(r,o,()=>{this.calc&&(i&&(1===this.calc.getDirection()?this.app.turnToPrevPage():this.app.turnToNextPage()),s&&(this.render.setBottomPage(null),this.render.setFlippingPage(null),this.render.clearShadow(),this.setState("read"),this.reset()))})}getCalculation(){return this.calc}getState(){return this.state}setState(t){this.state!==t&&(this.app.updateState(t),this.state=t)}getDirectionByPoint(t){const e=this.getBoundsRect();if("portrait"===this.render.getOrientation()){if(t.x-e.pageWidth<=e.width/5)return 1}else if(t.x<e.width/2)return 1;return 0}getAnimationDuration(t){const e=this.app.getSettings().flippingTime;return t>=1e3?e:t/1e3*e}checkDirection(t){return 0===t?this.app.getCurrentPageIndex()<this.app.getPageCount()-1:this.app.getCurrentPageIndex()>=1}reset(){this.calc=null,this.flippingPage=null,this.bottomPage=null}getBoundsRect(){return this.render.getRect()}checkState(...t){for(const e of t)if(this.state===e)return!0;return!1}isPointOnCorners(t){const e=this.getBoundsRect(),i=e.pageWidth,s=Math.sqrt(Math.pow(i,2)+Math.pow(e.height,2))/5,n=this.render.convertToBook(t);return n.x>0&&n.y>0&&n.x<e.width&&n.y<e.height&&(n.x<s||n.x>e.width-s)&&(n.y<s||n.y>e.height-s)}}class l{constructor(t,e){this.leftPage=null,this.rightPage=null,this.flippingPage=null,this.bottomPage=null,this.direction=null,this.orientation=null,this.shadow=null,this.animation=null,this.pageRect=null,this.boundsRect=null,this.timer=0,this.safari=!1,this.setting=e,this.app=t;const i=new RegExp("Version\\/[\\d\\.]+.*Safari/");this.safari=null!==i.exec(window.navigator.userAgent)}render(t){if(null!==this.animation){const e=Math.round((t-this.animation.startedAt)/this.animation.durationFrame);e<this.animation.frames.length?this.animation.frames[e]():(this.animation.onAnimateEnd(),this.animation=null)}this.timer=t,this.drawFrame()}start(){this.update();const t=e=>{this.render(e),requestAnimationFrame(t)};requestAnimationFrame(t)}startAnimation(t,e,i){this.finishAnimation(),this.animation={frames:t,duration:e,durationFrame:e/t.length,onAnimateEnd:i,startedAt:this.timer}}finishAnimation(){null!==this.animation&&(this.animation.frames[this.animation.frames.length-1](),null!==this.animation.onAnimateEnd&&this.animation.onAnimateEnd()),this.animation=null}update(){this.boundsRect=null;const t=this.calculateBoundsRect();this.orientation!==t&&(this.orientation=t,this.app.updateOrientation(t))}calculateBoundsRect(){let t="landscape";const e=this.getBlockWidth(),i=e/2,s=this.getBlockHeight()/2,n=this.setting.width/this.setting.height;let h=this.setting.width,r=this.setting.height,o=i-h;return"stretch"===this.setting.size?(e<2*this.setting.minWidth&&this.app.getSettings().usePortrait&&(t="portrait"),h="portrait"===t?this.getBlockWidth():this.getBlockWidth()/2,h>this.setting.maxWidth&&(h=this.setting.maxWidth),r=h/n,r>this.getBlockHeight()&&(r=this.getBlockHeight(),h=r*n),o="portrait"===t?i-h/2-h:i-h):e<2*h&&this.app.getSettings().usePortrait&&(t="portrait",o=i-h/2-h),this.boundsRect={left:o,top:s-r/2,width:2*h,height:r,pageWidth:h},t}setShadowData(t,e,i,s){if(!this.app.getSettings().drawShadow)return;const n=100*this.getSettings().maxShadowOpacity;this.shadow={pos:t,angle:e,width:3*this.getRect().pageWidth/4*i/100,opacity:(100-i)*n/100/100,direction:s,progress:2*i}}clearShadow(){this.shadow=null}getBlockWidth(){return this.app.getUI().getDistElement().offsetWidth}getBlockHeight(){return this.app.getUI().getDistElement().offsetHeight}getDirection(){return this.direction}getRect(){return null===this.boundsRect&&this.calculateBoundsRect(),this.boundsRect}getSettings(){return this.app.getSettings()}getOrientation(){return this.orientation}setPageRect(t){this.pageRect=t}setDirection(t){this.direction=t}setRightPage(t){null!==t&&t.setOrientation(1),this.rightPage=t}setLeftPage(t){null!==t&&t.setOrientation(0),this.leftPage=t}setBottomPage(t){null!==t&&t.setOrientation(1===this.direction?0:1),this.bottomPage=t}setFlippingPage(t){null!==t&&t.setOrientation(0===this.direction&&"portrait"!==this.orientation?0:1),this.flippingPage=t}convertToBook(t){const e=this.getRect();return{x:t.x-e.left,y:t.y-e.top}}isSafari(){return this.safari}convertToPage(t,e){e||(e=this.direction);const i=this.getRect();return{x:0===e?t.x-i.left-i.width/2:i.width/2-t.x+i.left,y:t.y-i.top}}convertToGlobal(t,e){if(e||(e=this.direction),null==t)return null;const i=this.getRect();return{x:0===e?t.x+i.left+i.width/2:i.width/2-t.x+i.left,y:t.y+i.top}}convertRectToGlobal(t,e){return e||(e=this.direction),{topLeft:this.convertToGlobal(t.topLeft,e),topRight:this.convertToGlobal(t.topRight,e),bottomLeft:this.convertToGlobal(t.bottomLeft,e),bottomRight:this.convertToGlobal(t.bottomRight,e)}}}class d extends l{constructor(t,e,i){super(t,e),this.canvas=i,this.ctx=i.getContext("2d")}getContext(){return this.ctx}reload(){}drawFrame(){this.clear(),"portrait"!==this.orientation&&null!=this.leftPage&&this.leftPage.simpleDraw(0),null!=this.rightPage&&this.rightPage.simpleDraw(1),null!=this.bottomPage&&this.bottomPage.draw(),this.drawBookShadow(),null!=this.flippingPage&&this.flippingPage.draw(),null!=this.shadow&&(this.drawOuterShadow(),this.drawInnerShadow());const t=this.getRect();"portrait"===this.orientation&&(this.ctx.beginPath(),this.ctx.rect(t.left+t.pageWidth,t.top,t.width,t.height),this.ctx.clip())}drawBookShadow(){const t=this.getRect();this.ctx.save(),this.ctx.beginPath();const e=t.width/20;this.ctx.rect(t.left,t.top,t.width,t.height);const i={x:t.left+t.width/2-e/2,y:0};this.ctx.translate(i.x,i.y);const s=this.ctx.createLinearGradient(0,0,e,0);s.addColorStop(0,"rgba(0, 0, 0, 0)"),s.addColorStop(.4,"rgba(0, 0, 0, 0.2)"),s.addColorStop(.49,"rgba(0, 0, 0, 0.1)"),s.addColorStop(.5,"rgba(0, 0, 0, 0.5)"),s.addColorStop(.51,"rgba(0, 0, 0, 0.4)"),s.addColorStop(1,"rgba(0, 0, 0, 0)"),this.ctx.clip(),this.ctx.fillStyle=s,this.ctx.fillRect(0,0,e,2*t.height),this.ctx.restore()}drawOuterShadow(){const t=this.getRect();this.ctx.save(),this.ctx.beginPath(),this.ctx.rect(t.left,t.top,t.width,t.height);const e=this.convertToGlobal({x:this.shadow.pos.x,y:this.shadow.pos.y});this.ctx.translate(e.x,e.y),this.ctx.rotate(Math.PI+this.shadow.angle+Math.PI/2);const i=this.ctx.createLinearGradient(0,0,this.shadow.width,0);0===this.shadow.direction?(this.ctx.translate(0,-100),i.addColorStop(0,"rgba(0, 0, 0, "+this.shadow.opacity+")"),i.addColorStop(1,"rgba(0, 0, 0, 0)")):(this.ctx.translate(-this.shadow.width,-100),i.addColorStop(0,"rgba(0, 0, 0, 0)"),i.addColorStop(1,"rgba(0, 0, 0, "+this.shadow.opacity+")")),this.ctx.clip(),this.ctx.fillStyle=i,this.ctx.fillRect(0,0,this.shadow.width,2*t.height),this.ctx.restore()}drawInnerShadow(){const t=this.getRect();this.ctx.save(),this.ctx.beginPath();const e=this.convertToGlobal({x:this.shadow.pos.x,y:this.shadow.pos.y}),i=this.convertRectToGlobal(this.pageRect);this.ctx.moveTo(i.topLeft.x,i.topLeft.y),this.ctx.lineTo(i.topRight.x,i.topRight.y),this.ctx.lineTo(i.bottomRight.x,i.bottomRight.y),this.ctx.lineTo(i.bottomLeft.x,i.bottomLeft.y),this.ctx.translate(e.x,e.y),this.ctx.rotate(Math.PI+this.shadow.angle+Math.PI/2);const s=3*this.shadow.width/4,n=this.ctx.createLinearGradient(0,0,s,0);0===this.shadow.direction?(this.ctx.translate(-s,-100),n.addColorStop(1,"rgba(0, 0, 0, "+this.shadow.opacity+")"),n.addColorStop(.9,"rgba(0, 0, 0, 0.05)"),n.addColorStop(.7,"rgba(0, 0, 0, "+this.shadow.opacity+")"),n.addColorStop(0,"rgba(0, 0, 0, 0)")):(this.ctx.translate(0,-100),n.addColorStop(0,"rgba(0, 0, 0, "+this.shadow.opacity+")"),n.addColorStop(.1,"rgba(0, 0, 0, 0.05)"),n.addColorStop(.3,"rgba(0, 0, 0, "+this.shadow.opacity+")"),n.addColorStop(1,"rgba(0, 0, 0, 0)")),this.ctx.clip(),this.ctx.fillStyle=n,this.ctx.fillRect(0,0,s,2*t.height),this.ctx.restore()}clear(){this.ctx.fillStyle="white",this.ctx.fillRect(0,0,this.canvas.width,this.canvas.height)}}class p{constructor(t,e,i){this.touchPoint=null,this.swipeTimeout=250,this.onResize=()=>{this.update()},this.onMouseDown=t=>{if(this.checkTarget(t.target)){const e=this.getMousePos(t.clientX,t.clientY);this.app.startUserTouch(e),t.preventDefault()}},this.onTouchStart=t=>{if(this.checkTarget(t.target)&&t.changedTouches.length>0){const e=t.changedTouches[0],i=this.getMousePos(e.clientX,e.clientY);this.touchPoint={point:i,time:Date.now()},setTimeout(()=>{null!==this.touchPoint&&this.app.startUserTouch(i)},this.swipeTimeout),this.app.getSettings().mobileScrollSupport||t.preventDefault()}},this.onMouseUp=t=>{const e=this.getMousePos(t.clientX,t.clientY);this.app.userStop(e)},this.onMouseMove=t=>{const e=this.getMousePos(t.clientX,t.clientY);this.app.userMove(e,!1)},this.onTouchMove=t=>{if(t.changedTouches.length>0){const e=t.changedTouches[0],i=this.getMousePos(e.clientX,e.clientY);this.app.getSettings().mobileScrollSupport?(null!==this.touchPoint&&(Math.abs(this.touchPoint.point.x-i.x)>10||"read"!==this.app.getState())&&t.cancelable&&this.app.userMove(i,!0),"read"!==this.app.getState()&&t.preventDefault()):this.app.userMove(i,!0)}},this.onTouchEnd=t=>{if(t.changedTouches.length>0){const e=t.changedTouches[0],i=this.getMousePos(e.clientX,e.clientY);let s=!1;if(null!==this.touchPoint){const t=i.x-this.touchPoint.point.x,e=Math.abs(i.y-this.touchPoint.point.y);Math.abs(t)>this.swipeDistance&&e<2*this.swipeDistance&&Date.now()-this.touchPoint.time<this.swipeTimeout&&(t>0?this.app.flipPrev(this.touchPoint.point.y<this.app.getRender().getRect().height/2?"top":"bottom"):this.app.flipNext(this.touchPoint.point.y<this.app.getRender().getRect().height/2?"top":"bottom"),s=!0),this.touchPoint=null}this.app.userStop(i,s)}},this.parentElement=t,t.classList.add("stf__parent"),t.insertAdjacentHTML("afterbegin",'<div class="stf__wrapper"></div>'),this.wrapper=t.querySelector(".stf__wrapper"),this.app=e;const s=this.app.getSettings().usePortrait?1:2;t.style.minWidth=i.minWidth*s+"px",t.style.minHeight=i.minHeight+"px","fixed"===i.size&&(t.style.minWidth=i.width*s+"px",t.style.minHeight=i.height+"px"),i.autoSize&&(t.style.width="100%",t.style.maxWidth=2*i.maxWidth+"px"),t.style.display="block",window.addEventListener("resize",this.onResize,!1),this.swipeDistance=i.swipeDistance}destroy(){this.app.getSettings().useMouseEvents&&this.removeHandlers(),this.distElement.remove(),this.wrapper.remove()}getDistElement(){return this.distElement}getWrapper(){return this.wrapper}setOrientationStyle(t){this.wrapper.classList.remove("--portrait","--landscape"),"portrait"===t?(this.app.getSettings().autoSize&&(this.wrapper.style.paddingBottom=this.app.getSettings().height/this.app.getSettings().width*100+"%"),this.wrapper.classList.add("--portrait")):(this.app.getSettings().autoSize&&(this.wrapper.style.paddingBottom=this.app.getSettings().height/(2*this.app.getSettings().width)*100+"%"),this.wrapper.classList.add("--landscape")),this.update()}removeHandlers(){window.removeEventListener("resize",this.onResize),this.distElement.removeEventListener("mousedown",this.onMouseDown),this.distElement.removeEventListener("touchstart",this.onTouchStart),window.removeEventListener("mousemove",this.onMouseMove),window.removeEventListener("touchmove",this.onTouchMove),window.removeEventListener("mouseup",this.onMouseUp),window.removeEventListener("touchend",this.onTouchEnd)}setHandlers(){window.addEventListener("resize",this.onResize,!1),this.app.getSettings().useMouseEvents&&(this.distElement.addEventListener("mousedown",this.onMouseDown),this.distElement.addEventListener("touchstart",this.onTouchStart),window.addEventListener("mousemove",this.onMouseMove),window.addEventListener("touchmove",this.onTouchMove,{passive:!this.app.getSettings().mobileScrollSupport}),window.addEventListener("mouseup",this.onMouseUp),window.addEventListener("touchend",this.onTouchEnd))}getMousePos(t,e){const i=this.distElement.getBoundingClientRect();return{x:t-i.left,y:e-i.top}}checkTarget(t){return!this.app.getSettings().clickEventForward||!["a","button"].includes(t.tagName.toLowerCase())}}class c extends p{constructor(t,e,i,s){super(t,e,i),this.wrapper.insertAdjacentHTML("afterbegin",'<div class="stf__block"></div>'),this.distElement=t.querySelector(".stf__block"),this.items=s;for(const t of s)this.distElement.appendChild(t);this.setHandlers()}clear(){for(const t of this.items)this.parentElement.appendChild(t)}updateItems(t){this.removeHandlers(),this.distElement.innerHTML="";for(const e of t)this.distElement.appendChild(e);this.items=t,this.setHandlers()}update(){this.app.getRender().update()}}class u extends p{constructor(t,e,i){super(t,e,i),this.wrapper.innerHTML='<canvas class="stf__canvas"></canvas>',this.canvas=t.querySelectorAll("canvas")[0],this.distElement=this.canvas,this.resizeCanvas(),this.setHandlers()}resizeCanvas(){const t=getComputedStyle(this.canvas),e=parseInt(t.getPropertyValue("width"),10),i=parseInt(t.getPropertyValue("height"),10);this.canvas.width=e,this.canvas.height=i}getCanvas(){return this.canvas}update(){this.resizeCanvas(),this.app.getRender().update()}}class w extends l{constructor(t,e,i){super(t,e),this.outerShadow=null,this.innerShadow=null,this.hardShadow=null,this.hardInnerShadow=null,this.element=i,this.createShadows()}createShadows(){this.element.insertAdjacentHTML("beforeend",'<div class="stf__outerShadow"></div>\n             <div class="stf__innerShadow"></div>\n             <div class="stf__hardShadow"></div>\n             <div class="stf__hardInnerShadow"></div>'),this.outerShadow=this.element.querySelector(".stf__outerShadow"),this.innerShadow=this.element.querySelector(".stf__innerShadow"),this.hardShadow=this.element.querySelector(".stf__hardShadow"),this.hardInnerShadow=this.element.querySelector(".stf__hardInnerShadow")}clearShadow(){super.clearShadow(),this.outerShadow.style.cssText="display: none",this.innerShadow.style.cssText="display: none",this.hardShadow.style.cssText="display: none",this.hardInnerShadow.style.cssText="display: none"}reload(){this.element.querySelector(".stf__outerShadow")||this.createShadows()}drawHardInnerShadow(){const t=this.getRect(),e=this.shadow.progress>100?200-this.shadow.progress:this.shadow.progress;let i=(100-e)*(2.5*t.pageWidth)/100+20;i>t.pageWidth&&(i=t.pageWidth);let s=`\n            display: block;\n            z-index: ${(this.getSettings().startZIndex+5).toString(10)};\n            width: ${i}px;\n            height: ${t.height}px;\n            background: linear-gradient(to right,\n                rgba(0, 0, 0, ${this.shadow.opacity*e/100}) 5%,\n                rgba(0, 0, 0, 0) 100%);\n            left: ${t.left+t.width/2}px;\n            transform-origin: 0 0;\n        `;s+=0===this.getDirection()&&this.shadow.progress>100||1===this.getDirection()&&this.shadow.progress<=100?"transform: translate3d(0, 0, 0);":"transform: translate3d(0, 0, 0) rotateY(180deg);",this.hardInnerShadow.style.cssText=s}drawHardOuterShadow(){const t=this.getRect();let e=(100-(this.shadow.progress>100?200-this.shadow.progress:this.shadow.progress))*(2.5*t.pageWidth)/100+20;e>t.pageWidth&&(e=t.pageWidth);let i=`\n            display: block;\n            z-index: ${(this.getSettings().startZIndex+4).toString(10)};\n            width: ${e}px;\n            height: ${t.height}px;\n            background: linear-gradient(to left, rgba(0, 0, 0, ${this.shadow.opacity}) 5%, rgba(0, 0, 0, 0) 100%);\n            left: ${t.left+t.width/2}px;\n            transform-origin: 0 0;\n        `;i+=0===this.getDirection()&&this.shadow.progress>100||1===this.getDirection()&&this.shadow.progress<=100?"transform: translate3d(0, 0, 0) rotateY(180deg);":"transform: translate3d(0, 0, 0);",this.hardShadow.style.cssText=i}drawInnerShadow(){const t=this.getRect(),e=3*this.shadow.width/4,i=0===this.getDirection()?e:0,s=0===this.getDirection()?"to left":"to right",n=this.convertToGlobal(this.shadow.pos),r=this.shadow.angle+3*Math.PI/2,o=[this.pageRect.topLeft,this.pageRect.topRight,this.pageRect.bottomRight,this.pageRect.bottomLeft];let a="polygon( ";for(const t of o){let e=1===this.getDirection()?{x:-t.x+this.shadow.pos.x,y:t.y-this.shadow.pos.y}:{x:t.x-this.shadow.pos.x,y:t.y-this.shadow.pos.y};e=h.GetRotatedPoint(e,{x:i,y:100},r),a+=e.x+"px "+e.y+"px, "}a=a.slice(0,-2),a+=")";const g=`\n            display: block;\n            z-index: ${(this.getSettings().startZIndex+10).toString(10)};\n            width: ${e}px;\n            height: ${2*t.height}px;\n            background: linear-gradient(${s},\n                rgba(0, 0, 0, ${this.shadow.opacity}) 5%,\n                rgba(0, 0, 0, 0.05) 15%,\n                rgba(0, 0, 0, ${this.shadow.opacity}) 35%,\n                rgba(0, 0, 0, 0) 100%);\n            transform-origin: ${i}px 100px;\n            transform: translate3d(${n.x-i}px, ${n.y-100}px, 0) rotate(${r}rad);\n            clip-path: ${a};\n            -webkit-clip-path: ${a};\n        `;this.innerShadow.style.cssText=g}drawOuterShadow(){const t=this.getRect(),e=this.convertToGlobal({x:this.shadow.pos.x,y:this.shadow.pos.y}),i=this.shadow.angle+3*Math.PI/2,s=1===this.getDirection()?this.shadow.width:0,n=0===this.getDirection()?"to right":"to left",r=[{x:0,y:0},{x:t.pageWidth,y:0},{x:t.pageWidth,y:t.height},{x:0,y:t.height}];let o="polygon( ";for(const t of r)if(null!==t){let e=1===this.getDirection()?{x:-t.x+this.shadow.pos.x,y:t.y-this.shadow.pos.y}:{x:t.x-this.shadow.pos.x,y:t.y-this.shadow.pos.y};e=h.GetRotatedPoint(e,{x:s,y:100},i),o+=e.x+"px "+e.y+"px, "}o=o.slice(0,-2),o+=")";const a=`\n            display: block;\n            z-index: ${(this.getSettings().startZIndex+10).toString(10)};\n            width: ${this.shadow.width}px;\n            height: ${2*t.height}px;\n            background: linear-gradient(${n}, rgba(0, 0, 0, ${this.shadow.opacity}), rgba(0, 0, 0, 0));\n            transform-origin: ${s}px 100px;\n            transform: translate3d(${e.x-s}px, ${e.y-100}px, 0) rotate(${i}rad);\n            clip-path: ${o};\n            -webkit-clip-path: ${o};\n        `;this.outerShadow.style.cssText=a}drawLeftPage(){"portrait"!==this.orientation&&null!==this.leftPage&&(1===this.direction&&null!==this.flippingPage&&"hard"===this.flippingPage.getDrawingDensity()?(this.leftPage.getElement().style.zIndex=(this.getSettings().startZIndex+5).toString(10),this.leftPage.setHardDrawingAngle(180+this.flippingPage.getHardAngle()),this.leftPage.draw(this.flippingPage.getDrawingDensity())):this.leftPage.simpleDraw(0))}drawRightPage(){null!==this.rightPage&&(0===this.direction&&null!==this.flippingPage&&"hard"===this.flippingPage.getDrawingDensity()?(this.rightPage.getElement().style.zIndex=(this.getSettings().startZIndex+5).toString(10),this.rightPage.setHardDrawingAngle(180+this.flippingPage.getHardAngle()),this.rightPage.draw(this.flippingPage.getDrawingDensity())):this.rightPage.simpleDraw(1))}drawBottomPage(){if(null===this.bottomPage)return;const t=null!=this.flippingPage?this.flippingPage.getDrawingDensity():null;"portrait"===this.orientation&&1===this.direction||(this.bottomPage.getElement().style.zIndex=(this.getSettings().startZIndex+3).toString(10),this.bottomPage.draw(t))}drawFrame(){this.clear(),this.drawLeftPage(),this.drawRightPage(),this.drawBottomPage(),null!=this.flippingPage&&(this.flippingPage.getElement().style.zIndex=(this.getSettings().startZIndex+5).toString(10),this.flippingPage.draw()),null!=this.shadow&&null!==this.flippingPage&&("soft"===this.flippingPage.getDrawingDensity()?(this.drawOuterShadow(),this.drawInnerShadow()):(this.drawHardOuterShadow(),this.drawHardInnerShadow()))}clear(){for(const t of this.app.getPageCollection().getPages())t!==this.leftPage&&t!==this.rightPage&&t!==this.flippingPage&&t!==this.bottomPage&&(t.getElement().style.cssText="display: none"),t.getTemporaryCopy()!==this.flippingPage&&t.hideTemporaryCopy()}update(){super.update(),null!==this.rightPage&&this.rightPage.setOrientation(1),null!==this.leftPage&&this.leftPage.setOrientation(0)}}class x{constructor(){this._default={startPage:0,size:"fixed",width:0,height:0,minWidth:0,maxWidth:0,minHeight:0,maxHeight:0,drawShadow:!0,flippingTime:1e3,usePortrait:!0,startZIndex:0,autoSize:!0,maxShadowOpacity:1,showCover:!1,mobileScrollSupport:!0,swipeDistance:30,clickEventForward:!0,useMouseEvents:!0,showPageCorners:!0,disableFlipByClick:!1}}getSettings(t){const e=this._default;if(Object.assign(e,t),"stretch"!==e.size&&"fixed"!==e.size)throw new Error('Invalid size type. Available only "fixed" and "stretch" value');if(e.width<=0||e.height<=0)throw new Error("Invalid width or height");if(e.flippingTime<=0)throw new Error("Invalid flipping time");return"stretch"===e.size?(e.minWidth<=0&&(e.minWidth=100),e.maxWidth<e.minWidth&&(e.maxWidth=2e3),e.minHeight<=0&&(e.minHeight=100),e.maxHeight<e.minHeight&&(e.maxHeight=2e3)):(e.minWidth=e.width,e.maxWidth=e.width,e.minHeight=e.height,e.maxHeight=e.height),e}}!function(t,e){void 0===e&&(e={});var i=e.insertAt;if(t&&"undefined"!=typeof document){var s=document.head||document.getElementsByTagName("head")[0],n=document.createElement("style");n.type="text/css","top"===i&&s.firstChild?s.insertBefore(n,s.firstChild):s.appendChild(n),n.styleSheet?n.styleSheet.cssText=t:n.appendChild(document.createTextNode(t))}}(".stf__parent {\n  position: relative;\n  display: block;\n  box-sizing: border-box;\n  transform: translateZ(0);\n\n  -ms-touch-action: pan-y;\n  touch-action: pan-y;\n}\n\n.sft__wrapper {\n  position: relative;\n  width: 100%;\n  box-sizing: border-box;\n}\n\n.stf__parent canvas {\n  position: absolute;\n  width: 100%;\n  height: 100%;\n  left: 0;\n  top: 0;\n}\n\n.stf__block {\n  position: absolute;\n  width: 100%;\n  height: 100%;\n  box-sizing: border-box;\n  perspective: 2000px;\n}\n\n.stf__item {\n  display: none;\n  position: absolute;\n  transform-style: preserve-3d;\n}\n\n.stf__outerShadow {\n  position: absolute;\n  left: 0;\n  top: 0;\n}\n\n.stf__innerShadow {\n  position: absolute;\n  left: 0;\n  top: 0;\n}\n\n.stf__hardShadow {\n  position: absolute;\n  left: 0;\n  top: 0;\n}\n\n.stf__hardInnerShadow {\n  position: absolute;\n  left: 0;\n  top: 0;\n}");t.PageFlip=class extends class{constructor(){this.events=new Map}on(t,e){return this.events.has(t)?this.events.get(t).push(e):this.events.set(t,[e]),this}off(t){this.events.delete(t)}trigger(t,e,i=null){if(this.events.has(t))for(const s of this.events.get(t))s({data:i,object:e})}}{constructor(t,e){super(),this.isUserTouch=!1,this.isUserMove=!1,this.setting=null,this.pages=null,this.setting=(new x).getSettings(e),this.block=t}destroy(){this.ui.destroy(),this.block.remove()}update(){this.render.update(),this.pages.show()}loadFromImages(t){this.ui=new u(this.block,this,this.setting);const e=this.ui.getCanvas();this.render=new d(this,this.setting,e),this.flipController=new g(this.render,this),this.pages=new n(this,this.render,t),this.pages.load(),this.render.start(),this.pages.show(this.setting.startPage),setTimeout(()=>{this.ui.update(),this.trigger("init",this,{page:this.setting.startPage,mode:this.render.getOrientation()})},1)}loadFromHTML(t){this.ui=new c(this.block,this,this.setting,t),this.render=new w(this,this.setting,this.ui.getDistElement()),this.flipController=new g(this.render,this),this.pages=new o(this,this.render,this.ui.getDistElement(),t),this.pages.load(),this.render.start(),this.pages.show(this.setting.startPage),setTimeout(()=>{this.ui.update(),this.trigger("init",this,{page:this.setting.startPage,mode:this.render.getOrientation()})},1)}updateFromImages(t){const e=this.pages.getCurrentPageIndex();this.pages.destroy(),this.pages=new n(this,this.render,t),this.pages.load(),this.pages.show(e),this.trigger("update",this,{page:e,mode:this.render.getOrientation()})}updateFromHtml(t){const e=this.pages.getCurrentPageIndex();this.pages.destroy(),this.pages=new o(this,this.render,this.ui.getDistElement(),t),this.pages.load(),this.ui.updateItems(t),this.render.reload(),this.pages.show(e),this.trigger("update",this,{page:e,mode:this.render.getOrientation()})}clear(){this.pages.destroy(),this.ui.clear()}turnToPrevPage(){this.pages.showPrev()}turnToNextPage(){this.pages.showNext()}turnToPage(t){this.pages.show(t)}flipNext(t="top"){this.flipController.flipNext(t)}flipPrev(t="top"){this.flipController.flipPrev(t)}flip(t,e="top"){this.flipController.flipToPage(t,e)}updateState(t){this.trigger("changeState",this,t)}updatePageIndex(t){this.trigger("flip",this,t)}updateOrientation(t){this.ui.setOrientationStyle(t),this.update(),this.trigger("changeOrientation",this,t)}getPageCount(){return this.pages.getPageCount()}getCurrentPageIndex(){return this.pages.getCurrentPageIndex()}getPage(t){return this.pages.getPage(t)}getRender(){return this.render}getFlipController(){return this.flipController}getOrientation(){return this.render.getOrientation()}getBoundsRect(){return this.render.getRect()}getSettings(){return this.setting}getUI(){return this.ui}getState(){return this.flipController.getState()}getPageCollection(){return this.pages}startUserTouch(t){this.mousePosition=t,this.isUserTouch=!0,this.isUserMove=!1}userMove(t,e){this.isUserTouch||e||!this.setting.showPageCorners?this.isUserTouch&&h.GetDistanceBetweenTwoPoint(this.mousePosition,t)>5&&(this.isUserMove=!0,this.flipController.fold(t)):this.flipController.showCorner(t)}userStop(t,e=!1){this.isUserTouch&&(this.isUserTouch=!1,e||(this.isUserMove?this.flipController.stopMove():this.flipController.flip(t)))}},Object.defineProperty(t,"__esModule",{value:!0})}));