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e=this.stageDOM=f.ifdef(this.stageDOM,this.parentElement[0]);e&&(e.addEventListener("mousemove",this.events.mousemove=this.mouseMove.bind(this),!1),e.addEventListener("mousedown",this.events.mousedown=this.mouseDown.bind(this),!1),e.addEventListener("mouseup",this.events.mouseup=this.mouseUp.bind(this),!1),e.addEventListener("touchmove",this.events.mousemove=this.mouseMove.bind(this),!1),e.addEventListener("touchstart",this.events.mousedown=this.mouseDown.bind(this),!1),e.addEventListener("touchend",this.events.mouseup=this.mouseUp.bind(this),!1),e.addEventListener("dblclick",this.events.dblclick=this.dblclick.bind(this),!1),e.addEventListener("scroll",this.events.scroll=this.onScroll.bind(this),!1),e.addEventListener("mousewheel",this.events.mousewheel=this.mouseWheel.bind(this),!1),e.addEventListener("DOMMouseScroll",this.events.mousewheel=this.mouseWheel.bind(this),!1)),this.startTouches=null,this.lastScale=null,this.startPoint=null}},{key:"refresh",value:function(){}},{key:"reset",value:function(){}},{key:"eventToPoint",value:function(e){var t={x:e.clientX,y:e.clientY};return t.x=t.x-this.app.viewerContainer[0].getBoundingClientRect().left,t.y=t.y-this.app.viewerContainer[0].getBoundingClientRect().top,{raw:t}}},{key:"mouseMove",value:function(e){e=f.fixMouseEvent(e),this.pinchMove(e),!0===this.pinchZoomDirty&&e.preventDefault(),this.startPoint&&!0!=this.pinchZoomDirty&&(this.pan(this.eventToPoint(e)),e.preventDefault())}},{key:"mouseDown",value:function(e){e=f.fixMouseEvent(e),this.pinchDown(e),this.startPoint=this.eventToPoint(e)}},{key:"mouseUp",value:function(e){e=f.fixMouseEvent(e),!0===this.pinchZoomDirty&&e.preventDefault();var t=this.eventToPoint(e),i=e.target||e.originalTarget,n=this.startPoint&&t.x===this.startPoint.x&&t.y===this.startPoint.y&&"A"!==i.nodeName;!0===e.ctrlKey&&n&&this.zoomOnPoint(t),this.pinchUp(e),this.startPoint=null}},{key:"pinchDown",value:function(e){}},{key:"pinchUp",value:function(e){}},{key:"pinchMove",value:function(e){}},{key:"updateTemporaryScale",value:function(){var e=arguments.length>0&&void 0!==arguments[0]&&arguments[0];if(!0===e)this.parentElement[0].style.transform="none";else if(this.app.viewer.zoomCenter){var t=this.app.viewer.pinchZoomUpdateScale;this.parentElement[0].style.transformOrigin=this.app.viewer.zoomCenter.x+"px "+this.app.viewer.zoomCenter.y+"px",this.parentElement[0].style.transform="scale3d("+t+","+t+",1)"}}},{key:"pan",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]&&arguments[1];this.panRequestStatus=n.REQUEST_STATUS.ON,f.pan(this,e,t)}},{key:"updatePan",value:function(){this.element.css({transform:"translate3d("+this.left+"px,"+this.top+"px,0)"})}},{key:"dblclick",value:function(e){}},{key:"onScroll",value:function(e){}},{key:"mouseWheel",value:function(e){var t=this.app,i=f.getMouseDelta(e),a=!0===e.ctrlKey,o=t.options.mouseScrollAction===n.MOUSE_SCROLL_ACTIONS.ZOOM&&(!0===t.options.isLightBox||!0===t.isFullscreen);a||o?(i>0||i<0)&&(e.preventDefault(),t.viewer.zoomCenter=this.eventToPoint(e).raw,t.zoom(i),t.ui.update()):t.options.mouseScrollAction===n.MOUSE_SCROLL_ACTIONS.NAV&&(i>0?t.next():i<0&&t.prev())}},{key:"zoomOnPoint",value:function(e){this.app.viewer.zoomCenter=e.raw,this.app.zoom(1)}},{key:"getVisiblePages",value:function(){return this.visiblePagesCache=[],{main:this.visiblePagesCache,buffer:[]}}},{key:"getBasePage",value:function(){return this.app.currentPageNumber}},{key:"isFirstPage",value:function(e){return void 0===e&&(e=this.app.currentPageNumber),1===e}},{key:"isLastPage",value:function(e){return void 0===e&&(e=this.app.currentPageNumber),e===this.app.pageCount}},{key:"isEdgePage",value:function(e){return void 0===e&&(e=this.app.currentPageNumber),1===e||e===this.app.pageCount}},{key:"checkRequestQueue",value:function(){var e=n.REQUEST_STATUS;this.panRequestStatus===e.ON&&(this.updatePan(),this.panRequestStatus=e.OFF),this.app.viewer.pinchZoomRequestStatus===e.ON&&(this.app.viewer.updateTemporaryScale(),this.app.viewer.pinchZoomRequestStatus=e.OFF)}},{key:"isAnimating",value:function(){return!1}},{key:"updatePendingStatusClass",value:function(e){void 0===e&&(e=this.isAnimating()),this.app.container.toggleClass("df-pending",e)}},{key:"initPages",value:function(){}},{key:"resize",value:function(){}},{key:"determinePageMode",value:function(){}},{key:"zoom",value:function(){}},{key:"gotoPageCallBack",value:function(){this.requestRefresh()}},{key:"requestRefresh",value:function(){var e=!(arguments.length>0)||void 0===arguments[0]||arguments[0];this.app.refreshRequestStatus=!0===e?n.REQUEST_STATUS.ON:n.REQUEST_STATUS.OFF}},{key:"getPageByNumber",value:function(e){var t=this.pages,i=void 0;if(this.app.isValidPage(e)){for(var n=0;n<t.length;n++)if(e===t[n].pageNumber){i=t[n];break}}return i}},{key:"changeAnnotation",value:function(){return!1}},{key:"getAnnotationElement",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]&&arguments[1],i=this.getPageByNumber(e);if(void 0!==i)return void 0===i.annotationElement&&(i.annotationElement=jQuery("<div class='df-link-content'>"),i.contentLayer.append(i.annotationElement)),!0===t&&i.annotationElement.html(""),i.annotationElement[0]}},{key:"getTextElement",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]&&arguments[1],i=this.getPageByNumber(e);if(void 0!==i)return void 0===i.textElement&&(i.textElement=jQuery("<div class='df-text-content'>"),i.contentLayer.append(i.textElement)),!0===t&&(i.textElement.html(""),i.textElement.siblings(".df-auto-link-content").html("")),i.textElement[0]}},{key:"render",value:function(){}},{key:"textureLoadedCallback",value:function(e){}},{key:"handleZoom",value:function(){}},{key:"getTextureSize",value:function(e){console.error("Texture calculation missing!")}},{key:"textureHeightLimit",value:function(e){return f.limitAt(e,1,this.app.dimensions.maxTextureHeight)}},{key:"textureWidthLimit",value:function(e){return f.limitAt(e,1,this.app.dimensions.maxTextureWidth)}},{key:"setPage",value:function(e){f.log("Set Page detected",e.pageNumber);var t=this.getPageByNumber(e.pageNumber);return!!t&&(e.callback=this.textureLoadedCallback.bind(this),t.loadTexture(e),this.updateBuffer(t),!0)}},{key:"cleanPage",value:function(e){return!0}},{key:"validatePageChange",value:function(e){return e!==this.app.currentPageNumber}},{key:"afterControlUpdate",value:function(){}},{key:"searchPage",value:function(e){return{include:!0,label:this.app.provider.getLabelforPage(e)}}}],function(e,t){for(var i=0;i<t.length;i++){var n=t[i];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}(t.prototype,e),t}();function v(e,t){if(!(e instanceof t))throw TypeError("Cannot call a class as a function")}function m(e,t){for(var i=0;i<t.length;i++){var n=t[i];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function y(e,t,i){return t&&m(e.prototype,t),i&&m(e,i),e}function b(e){return(b=Object.setPrototypeOf?Object.getPrototypeOf:function(e){return e.__proto__||Object.getPrototypeOf(e)})(e)}function w(e,t){return(w=Object.setPrototypeOf||function(e,t){return e.__proto__=t,e})(e,t)}var P=n.utils,S=/*#__PURE__*/function(e){!function(e,t){if("function"!=typeof t&&null!==t)throw TypeError("Super expression must either be null or a function");e.prototype=Object.create(t&&t.prototype,{constructor:{value:e,writable:!0,configurable:!0}}),t&&w(e,t)}(n,e);var t,i=(t=function(){if("undefined"==typeof Reflect||!Reflect.construct||Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],function(){})),!0}catch(e){return!1}}(),function(){var e,i=b(n);return e=t?Reflect.construct(i,arguments,b(this).constructor):i.apply(this,arguments),e&&("object"==(e&&"undefined"!=typeof Symbol&&e.constructor===Symbol?"symbol":typeof e)||"function"==typeof e)?e:function(e){if(void 0===e)throw ReferenceError("this hasn't been initialised - super() hasn't been called");return e}(this)});function n(e){var t;return v(this,n),(t=i.call(this)).canvasMode=null,e&&e.parentElement&&(t.parentElement=e.parentElement),t.init(),t}return y(n,[{key:"init",value:function(){var e=this.element=jQuery("<div>",{class:"df-page"});e[0].appendChild(this.contentLayer[0]),this.texture=new Image,this.parentElement&&this.parentElement[0].append(e[0])}},{key:"resetContent",value:function(){void 0!==this.annotationElement&&this.annotationElement.html(""),void 0!==this.textElement&&this.textElement.html("")}},{key:"setLoading",value:function(){this.element.toggleClass("df-loading",!0!==this.textureLoaded)}},{key:"loadTexture",value:function(e){var 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y(e,[{key:"reset",value:function(){this.resetTexture(),this.resetContent()}},{key:"resetTexture",value:function(){this.textureLoaded=!1,this.textureStamp="-1",this.loadTexture({texture:this.textureLoadFallback}),this.contentLayer.removeClass("df-content-loaded")}},{key:"clearTexture",value:function(){this.loadTexture({texture:this.textureLoadFallback})}},{key:"resetContent",value:function(){}},{key:"loadTexture",value:function(e){}},{key:"getTexture",value:function(){var e=arguments.length>0&&void 0!==arguments[0]&&arguments[0],t=this.textureSrc;return!0===e&&t&&t.cloneNode&&(t=t.cloneNode()).getContext&&t.getContext("2d").drawImage(this.textureSrc,0,0),t}},{key:"setLoading",value:function(){}},{key:"updateTextureLoadStatus",value:function(e){this.textureLoaded=!0===e,P.log((!0===this.textureLoaded?"Loaded ":"Loading ")+this.textureStamp+" for "+this.pageNumber),this.contentLayer.toggleClass("df-content-loaded",!0===e),this.setLoading()}},{key:"changeTexture",value:function(e,t){var i=e+"|"+t;return this.textureStamp!==i&&(P.log("Page "+e+" : texture changed from - "+this.textureStamp+" to "+i),this.textureLoaded=!1,this.textureStamp=i,this.updateTextureLoadStatus(!1),!0)}}]),e}());function x(e){if(void 0===e)throw ReferenceError("this hasn't been initialised - super() hasn't been called");return e}function C(e,t,i){return(C="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(e,t,i){var n=function(e,t){for(;!Object.prototype.hasOwnProperty.call(e,t)&&null!==(e=E(e)););return e}(e,t);if(n){var a=Object.getOwnPropertyDescriptor(n,t);return a.get?a.get.call(i||e):a.value}})(e,t,i||e)}function E(e){return(E=Object.setPrototypeOf?Object.getPrototypeOf:function(e){return e.__proto__||Object.getPrototypeOf(e)})(e)}function T(e,t){return(T=Object.setPrototypeOf||function(e,t){return e.__proto__=t,e})(e,t)}var k=n.utils,O=/*#__PURE__*/function(e){!function(e,t){if("function"!=typeof t&&null!==t)throw TypeError("Super expression must either be null or a 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function")}(this,o),e.viewerClass="df-reader",t.options.mouseScrollAction=n.MOUSE_SCROLL_ACTIONS.NONE,(i=a.call(this,e,t)).app.jumpStep=1,i.minZoom=.25,i.stackCount=i.app.pageCount,i.app.options.paddingLeft=0,i.app.options.paddingRight=0,i.app.options.paddingTop=10,i.app.options.paddingBottom=!0===i.app.options.controlsFloating?20:10,i.app.pageScaling=i.app.options.pageScale,i.acceptAppMouseEvents=!0,i.scrollStatus=n.REQUEST_STATUS.OFF,i.deltaPanX=0,i.deltaPanY=0,t._viewerPrepared(),i.zoomViewer=x(i),i}return i=[{key:"init",value:function(){C(E(o.prototype),"init",this).call(this),this.initEvents(),this.initPages(),this.initScrollBar()}},{key:"initEvents",value:function(){this.stageDOM=this.element[0],C(E(o.prototype),"initEvents",this).call(this)}},{key:"initPages",value:function(){this.stackCount=this.app.pageCount;for(var e=0;e<this.stackCount;e++){var t=new S({parentElement:this.wrapper});t.index=e,t.viewer=this,this.pages.push(t)}}},{key:"initScrollBar",value:function(){this.scrollBar=jQuery("<div class='df-reader-scrollbar'>"),this.scrollBar.appendTo(this.app.container),this.scrollPageNumber=jQuery("<div class='df-reader-scroll-page-number'>").appendTo(this.app.container)}},{key:"afterControlUpdate",value:function(){void 0!==this.scrollBar&&(this.scrollBar[0].innerHTML=this.app.getCurrentLabel(),this.app.provider.pageLabels?this.scrollPageNumber[0].innerHTML=this.app.getCurrentLabel()+"<div>("+this.app.currentPageNumber+" of "+this.app.pageCount+")</div>":this.scrollPageNumber[0].innerHTML=this.app.getCurrentLabel()+"<div>of "+this.app.pageCount+"</div>")}},{key:"updateBuffer",value:function(e){if("-1"!==e.textureStamp&&void 0!==e.pageNumber){for(var t=e.pageNumber,i=e.pageNumber,n=0,a=0;a<this.pageBuffer.length;a++){var o=this.pageBuffer[a].pageNumber;if(t===o){k.log("Page "+t+" already in buffer, skipping");return}Math.abs(this.app.currentPageNumber-o)>Math.abs(this.app.currentPageNumber-i)&&(i=o,n=a)}this.pageBuffer.push(e),this.pageBuffer.length>this.pageBufferSize&&(k.log("Farthest buffer: "+i),this.pageBuffer[n].reset(),this.pageBuffer.splice(n,1))}}},{key:"initCustomControls",value:function(){var e=this.app.ui.controls;e.openRight.hide(),e.openLeft.hide()}},{key:"dispose",value:function(){C(E(o.prototype),"dispose",this).call(this),this.scrollBar&&this.scrollBar.remove(),this.scrollPageNumber&&this.scrollPageNumber.remove(),this.element.remove()}},{key:"_getInnerHeight",value:function(){C(E(o.prototype),"_getInnerHeight",this).call(this);var e=this.app.dimensions.maxHeight-this.app.dimensions.padding.height,t=this.app.dimensions.defaultPage.viewPort,i=this.app.dimensions.containerWidth-20-this.app.dimensions.padding.width;this.app.pageScaling===n.PAGE_SCALE.ACTUAL&&(i=1*this.app.provider.defaultPage.viewPort.width);var a=e;return this.app.pageScaling===n.PAGE_SCALE.PAGE_WIDTH?a=100*t.height:this.app.pageScaling===n.PAGE_SCALE.AUTO?a=1.5*t.height:this.app.pageScaling===n.PAGE_SCALE.ACTUAL&&(a=1*t.height),a-=2,this._containCover=k.contain(t.width,t.height,i,a),a=Math.min(e,this._containCover.height+2),this.app.pageScaleValue=this._containCover.height/t.height,this.app.dimensions.isFixedHeight?e:a}},{key:"handleZoom",value:function(){var e=this.app,t=this.maxZoom=4,i=e.zoomValue;!0===e.pendingZoom&&null!=e.zoomDelta?i=e.zoomDelta>0?i*e.options.zoomRatio:i/e.options.zoomRatio:null!=this.lastScale&&(i*=this.lastScale,this.lastScale=null),i=k.limitAt(i,this.minZoom,t),e.zoomValueChange=i/e.zoomValue,e.zoomChanged=e.zoomValue!==i,e.zoomValue=i}},{key:"resize",value:function(){var e=this.app;e.dimensions;var t=e.dimensions.padding,i=this.shiftHeight=0;this.element.css({top:-i,bottom:-i,right:-0,left:-0,paddingTop:t.top,paddingRight:t.right,paddingBottom:t.bottom,paddingLeft:t.left});for(var n=this.getVisiblePages().main[0]-1,a=(n=this.pages[n].element[0]).getBoundingClientRect(),o=this.parentElement[0].getBoundingClientRect(),s=0;s<this.pages.length;s++){var r=this.pages[s],l=this.getViewPort(s+1,!0),h=r.element[0].style;h.height=Math.floor(l.height*e.pageScaleValue*e.zoomValue)+"px",h.width=Math.floor(l.width*e.pageScaleValue*e.zoomValue)+"px"}if(this.oldScrollHeight!=this.element[0].scrollHeight&&void 0!==this.oldScrollHeight){var u,p=this.element[0].scrollHeight/this.oldScrollHeight;this.skipScrollCheck=!0;var c=n.offsetTop+n.clientTop-(a.top-o.top+n.clientTop)*p,d=n.offsetLeft+n.clientLeft-(a.left-o.left+n.clientLeft)*p;c+=(p-1)*10/2,d+=(p-1)*10/2,this.zoomCenter=null!==(u=this.zoomCenter)&&void 0!==u?u:{x:0,y:0},c+=(p-1)*this.zoomCenter.y,d+=(p-1)*this.zoomCenter.x,this.zoomCenter=null,this.element[0].scrollTop=c,this.element[0].scrollLeft=d,this.skipScrollCheck=!1}this.oldScrollHeight=this.element[0].scrollHeight,this.scrollBar[0].style.transform="none",this.updateScrollBar()}},{key:"onReady",value:function(){this.gotoPageCallBack(),this.oldScrollHeight=this.element[0].scrollHeight}},{key:"refresh",value:function(){for(var e=this.app,t=this.getVisiblePages().main,i=0;i<t.length;i++){var a=void 0,o=t[i];a=this.pages[o-1],o!==a.pageNumber&&(a.resetTexture(),this.app.textureRequestStatus=n.REQUEST_STATUS.ON),a.element.attr("number",o),a.pageNumber=o}this.requestRefresh(!1),e.textureRequestStatus=n.REQUEST_STATUS.ON}},{key:"isAnimating",value:function(){return this.scrollStatus===n.REQUEST_STATUS.ON||this.scrollStatus===n.REQUEST_STATUS.COUNT}},{key:"checkRequestQueue",value:function(){C(E(o.prototype),"checkRequestQueue",this).call(this),this.scrollStatus===n.REQUEST_STATUS.ON&&(this.scrollStatus=n.REQUEST_STATUS.OFF),this.scrollStatus===n.REQUEST_STATUS.COUNT&&(this.scrollStatus=n.REQUEST_STATUS.ON)}},{key:"isActivePage",value:function(e){return void 0!==this.visiblePagesCache&&this.visiblePagesCache.includes(e)}},{key:"getVisiblePages",value:function(){var e=k.getVisibleElements({container:this.element[0],elements:this.wrapper[0].children});return e=0===e.length?[this.app.currentPageNumber]:e.splice(0,this.pageBufferSize),this.visiblePagesCache=e,{main:e,buffer:[]}}},{key:"getPageByNumber",value:function(e){var t=this.pages[e-1];return void 0===t&&k.log("Page Not found for: "+e),t}},{key:"onScroll",value:function(e){for(var t=this.element[0].scrollTop+this.app.dimensions.containerHeight/2,i=this.getVisiblePages().main,a=i[0],o=0;o<i.length;o++){a=i[o];var s=this.pages[a-1].element[0],r=s.offsetTop+s.clientTop;if(r<=t&&s.clientHeight+r>=t)break;if(o>0&&r>t&&s.clientHeight+r>=t){a=i[o-1];break}}this.skipScrollIntoView=!0,this.app.gotoPage(a),this.skipScrollIntoView=!1,this.updateScrollBar(),e.preventDefault&&e.preventDefault(),e.stopPropagation(),this.requestRefresh(),this.scrollStatus=n.REQUEST_STATUS.COUNT,n.handlePopup(this.element,!1)}},{key:"updateScrollBar",value:function(){var e=this.element[0];this.app.container[0],e.scrollLeft;var t=60+(e.offsetHeight-40-60-60)*e.scrollTop/(e.scrollHeight-e.offsetHeight);isNaN(t)&&(t=60),this.scrollBar.lastY=t,this.scrollBar[0].style.transform="translateY("+t+"px)"}},{key:"validatePageChange",value:function(e){}},{key:"gotoPageCallBack",value:function(){if(!0!==this.skipScrollIntoView){var e=this.getPageByNumber(this.app.currentPageNumber);null!=e&&k.scrollIntoView(e.element[0],this.element[0])}this.skipScrollIntoView=!1,this.requestRefresh()}},{key:"getTextureSize",value:function(e){var t=this.app.provider.viewPorts[1];this.app.provider.viewPorts[e.pageNumber]&&(t=this.app.provider.viewPorts[e.pageNumber]);var i=this.app.options.pixelRatio;return{height:t.height*this.app.zoomValue*this.app.pageScaleValue*i,width:t.width*this.app.zoomValue*this.app.pageScaleValue*i}}},{key:"textureLoadedCallback",value:function(e){var t=this.getPageByNumber(e.pageNumber),i=this.app,n=this.getViewPort(e.pageNumber,!0);t.element.height(Math.floor(n.height*i.pageScaleValue*i.zoomValue)).width(Math.floor(n.width*i.pageScaleValue*i.zoomValue))}},{key:"pan",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]&&arguments[1],i=this.startPoint,a=e.raw.y-i.raw.y,o=e.raw.x-i.raw.x;this.deltaPanY+=a,this.deltaPanX+=o,this.panRequestStatus=n.REQUEST_STATUS.ON,!1===t&&(this.startPoint=e)}},{key:"updatePan",value:function(){this.element[0].scrollTop=this.element[0].scrollTop-this.deltaPanY,this.element[0].scrollLeft=this.element[0].scrollLeft-this.deltaPanX,this.deltaPanY=0,this.deltaPanX=0}},{key:"mouseMove",value:function(e){if(this.startPoint&&this.isScrollBarPressed){var t=k.fixMouseEvent(e),i=this.eventToPoint(t),n=this.element[0],a=this.scrollBar.lastY-(this.startPoint.raw.y-i.raw.y);this.scrollBar.lastY=a,n.scrollTop=(a-60)*(n.scrollHeight-n.offsetHeight)/(n.offsetHeight-40-60-60),this.startPoint=i,e.preventDefault();return}e.touches&&e.touches.length<2||C(E(o.prototype),"mouseMove",this).call(this,e)}},{key:"mouseDown",value:function(e){C(E(o.prototype),"mouseDown",this).call(this,e),e.srcElement===this.scrollBar[0]&&(this.isScrollBarPressed=!0,this.scrollBar.addClass("df-active"),this.scrollPageNumber.addClass("df-active"))}},{key:"mouseUp",value:function(e){C(E(o.prototype),"mouseUp",this).call(this,e),(this.isScrollBarPressed=this.scrollBar)&&(this.isScrollBarPressed=!1,this.scrollBar.removeClass("df-active"),this.scrollPageNumber.removeClass("df-active"))}}],function(e,t){for(var i=0;i<t.length;i++){var n=t[i];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}(o.prototype,i),o}(g);function R(e,t){if(!(e instanceof t))throw TypeError("Cannot call a class as a function")}function L(e,t){for(var i=0;i<t.length;i++){var n=t[i];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function I(e,t,i){return t&&L(e.prototype,t),i&&L(e,i),e}function N(e,t,i){return(N="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(e,t,i){var n=function(e,t){for(;!Object.prototype.hasOwnProperty.call(e,t)&&null!==(e=_(e)););return e}(e,t);if(n){var a=Object.getOwnPropertyDescriptor(n,t);return a.get?a.get.call(i||e):a.value}})(e,t,i||e)}function _(e){return(_=Object.setPrototypeOf?Object.getPrototypeOf:function(e){return e.__proto__||Object.getPrototypeOf(e)})(e)}function A(e,t){if("function"!=typeof t&&null!==t)throw TypeError("Super expression must either be null or a function");e.prototype=Object.create(t&&t.prototype,{constructor:{value:e,writable:!0,configurable:!0}}),t&&M(e,t)}function M(e,t){return(M=Object.setPrototypeOf||function(e,t){return e.__proto__=t,e})(e,t)}function D(e){var t=function(){if("undefined"==typeof Reflect||!Reflect.construct||Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],function(){})),!0}catch(e){return!1}}();return function(){var i,n=_(e);return i=t?Reflect.construct(n,arguments,_(this).constructor):n.apply(this,arguments),i&&("object"==(i&&"undefined"!=typeof Symbol&&i.constructor===Symbol?"symbol":typeof i)||"function"==typeof i)?i:function(e){if(void 0===e)throw ReferenceError("this hasn't been initialised - super() hasn't been called");return e}(this)}}var F=n.utils,z=/*#__PURE__*/function(e){A(i,e);var t=D(i);function i(e,a){var o,s;return R(this,i),e.viewerClass="df-flipbook "+(e.viewerClass||""),(o=t.call(this,e,a)).isFlipBook=!0,o.sheets=[],o.isRTL=o.app.isRTL,o.foldSense=50,o.isOneSided=!1,o.stackCount=null!==(s=e.stackCount)&&void 0!==s?s:6,o.annotedPage=null,o.pendingAnnotations=[],o.seamPosition=0,o.dragSheet=null,o.drag=null,o.soundOn=!0===e.enableSound,o.soundFile=null,o.minZoom=1,o.maxZoom=4,o.pureMaxZoom=4,(o.app.options.pageSize===n.FLIPBOOK_PAGE_SIZE.AUTO||o.app.options.pageSize===n.FLIPBOOK_PAGE_SIZE.DOUBLE_INTERNAL)&&(o.app.checkSecondPage=!0),o.app.pageScaling=n.PAGE_SCALE.PAGE_FIT,e.viewerClass="",o.zoomViewer=new B(e,a),o}return I(i,[{key:"init",value:function(){N(_(i.prototype),"init",this).call(this),this.initSound();var e=this.app;this.pageMode=e.options.pageMode===n.FLIPBOOK_PAGE_MODE.AUTO?F.isMobile||e.pageCount<=2?n.FLIPBOOK_PAGE_MODE.SINGLE:n.FLIPBOOK_PAGE_MODE.DOUBLE:e.options.pageMode,this.singlePageMode=e.options.singlePageMode||(F.isMobile?n.FLIPBOOK_SINGLE_PAGE_MODE.BOOKLET:n.FLIPBOOK_SINGLE_PAGE_MODE.ZOOM),this.updatePageMode(),this.rightSheetHeight=this.leftSheetHeight=this._defaultPageSize.height,this.leftSheetWidth=this.rightSheetWidth=this._defaultPageSize.width,this.leftSheetTop=this.rightSheetTop=(this.availablePageHeight()-this._defaultPageSize.height)/2,this.zoomViewer.rightSheetHeight=this.zoomViewer.leftSheetHeight=this._defaultPageSize.height,this.zoomViewer.leftSheetWidth=this.zoomViewer.rightSheetWidth=this._defaultPageSize.width}},{key:"determineHeight",value:function(){}},{key:"initCustomControls",value:function(){N(_(i.prototype),"initCustomControls",this).call(this);var e=this,t=this.app,n=t.ui,a=n.controls,o=t.options.text,s=t.options.icons;a.sound=F.createBtn("sound",s.sound,o.toggleSound).on("click",function(){e.soundOn=!e.soundOn,n.updateSound()}),n.updateSound=function(){!1===e.soundOn?a.sound.addClass("disabled"):a.sound.removeClass("disabled")},n.updateSound()}},{key:"dispose",value:function(){N(_(i.prototype),"dispose",this).call(this);for(var e=0;e<this.sheets.length;e++){var t=this.sheets[e];t&&t.currentTween&&(t.currentTween.stop(),t.currentTween=null)}this.zoomViewer.dispose(),this.soundFile=null}},{key:"determinePageMode",value:function(){var e=this.app,t=this.pageMode;if(this.app.pageCount<3)this.pageMode=n.FLIPBOOK_PAGE_MODE.SINGLE;else if(this.app.options.pageMode===n.FLIPBOOK_PAGE_MODE.AUTO&&!0!=this.pageModeChangedManually){if(!0===F.isMobile){if(this.app.dimensions.isAutoHeight&&!1==this.app.dimensions.isFixedHeight){var i=this._calculateInnerHeight(!0),a=this._calculateInnerHeight(!1),o=e.dimensions.stage.innerWidth+(!0!=e.options.sideMenuOverlay&&e.isSideMenuOpen?220:0);this.pageMode=i>1.1*a&&o<768?n.FLIPBOOK_PAGE_MODE.SINGLE:n.FLIPBOOK_PAGE_MODE.DOUBLE,this._calculateInnerHeight()}else{var s=e.dimensions.stage.innerWidth+(!0!=e.options.sideMenuOverlay&&e.isSideMenuOpen?220:0);this.pageMode=e.dimensions.stage.innerHeight>1.1*s&&s<768?n.FLIPBOOK_PAGE_MODE.SINGLE:n.FLIPBOOK_PAGE_MODE.DOUBLE}}this.pageMode!=t&&this.setPageMode({isSingle:this.pageMode==n.FLIPBOOK_PAGE_MODE.SINGLE})}}},{key:"initSound",value:function(){this.soundFile=document.createElement("audio"),this.soundFile.setAttribute("src",this.app.options.soundFile+"?ver="+n.version),this.soundFile.setAttribute("type","audio/mpeg")}},{key:"playSound",value:function(){try{!0===this.app.userHasInteracted&&!0===this.soundOn&&(this.soundFile.currentTime=0,this.soundFile.play())}catch(e){}}},{key:"checkDocumentPageSizes",value:function(){var e=this.app.provider;e.pageSize===n.FLIPBOOK_PAGE_SIZE.AUTO&&(e._page2Ratio&&e._page2Ratio>1.5*e.defaultPage.pageRatio?e.pageSize=n.FLIPBOOK_PAGE_SIZE.DOUBLE_INTERNAL:e.pageSize=n.FLIPBOOK_PAGE_SIZE.SINGLE),e.pageSize===n.FLIPBOOK_PAGE_SIZE.DOUBLE_INTERNAL&&(e.pageCount=1===e.numPages?1:2*e.numPages-2),(e.pageSize===n.FLIPBOOK_PAGE_SIZE.DOUBLE_COVER_BACK||e.pageSize===n.FLIPBOOK_PAGE_SIZE.DOUBLE)&&(e.pageCount=2*e.numPages)}},{key:"getViewerPageNumber",value:function(e){return this.app.provider.pageSize===n.FLIPBOOK_PAGE_SIZE.DOUBLE_INTERNAL&&e>2&&(e=2*e-1),this.app.provider.pageSize===n.FLIPBOOK_PAGE_SIZE.DOUBLE_COVER_BACK&&e>2&&(e=2*e-1),e}},{key:"getDocumentPageNumber",value:function(e){return this.app.provider.pageSize===n.FLIPBOOK_PAGE_SIZE.DOUBLE_INTERNAL&&e>2?Math.ceil((e-1)/2)+1:this.app.provider.pageSize===n.FLIPBOOK_PAGE_SIZE.DOUBLE_COVER_BACK&&e>1?e===this.app.pageCount?1:Math.ceil((e-1)/2)+1:e}},{key:"getViewPort",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]&&arguments[1],n=arguments.length>2?arguments[2]:void 0;return this.filterViewPort(N(_(i.prototype),"getViewPort",this).call(this,e,t),e,n)}},{key:"isDoubleInternal",value:function(){return this.app.provider.pageSize===n.FLIPBOOK_PAGE_SIZE.DOUBLE_INTERNAL}},{key:"isDoubleCoverBack",value:function(){return this.app.provider.pageSize===n.FLIPBOOK_PAGE_SIZE.DOUBLE_COVER_BACK}},{key:"isDoubleInternalPage",value:function(e){return this.isDoubleInternal()&&e>1&&e<this.app.provider.pageCount}},{key:"getDoublePageWidthFix",value:function(e){return this.isDoubleInternalPage(e)||this.isDoubleCoverBack()?2:1}},{key:"isDoublePageFix",value:function(e){var t=!1;return(this.isDoubleCoverBack()||this.isDoubleInternalPage(e))&&(this.app.isRTL?e%2==0&&(t=!0):e%2==1&&(t=!0)),t}},{key:"finalizeAnnotations",value:function(e,t){}},{key:"finalizeTextContent",value:function(e,t){this.app.zoomValue>this.app.viewer.pureMaxZoom&&(this.zoomViewer.leftViewPort&&this.zoomViewer.leftPage.contentLayer[0].style.setProperty("--scale-factor",this.zoomViewer.leftSheetHeight/this.zoomViewer.leftViewPort.height),this.zoomViewer.rightViewPort&&this.zoomViewer.rightPage.contentLayer[0].style.setProperty("--scale-factor",this.zoomViewer.rightSheetHeight/this.zoomViewer.rightViewPort.height))}},{key:"isActivePage",value:function(e){return void 0!==this.visiblePagesCache&&this.visiblePagesCache.includes(e)}},{key:"isSheetCover",value:function(e){var t=this.isBooklet;return 0===e||t&&1===e||e===Math.ceil(this.app.pageCount/(t?1:2))-(t?0:1)}},{key:"isSheetHard",value:function(e){var t=this.app.options.flipbookHardPages;if(this.isBooklet,"cover"===t)return this.isSheetCover(e);if("all"===t)return!0;var i=(","+t+",").indexOf(","+(2*e+1)+",")>-1,n=(","+t+",").indexOf(","+(2*e+2)+",")>-1;return i||n}},{key:"sheetsIndexShift",value:function(e,t,i){e>t?(this.sheets[i-1].skipFlip=!0,this.sheets.unshift(this.sheets.pop())):e<t&&(this.sheets[0].skipFlip=!0,this.sheets.push(this.sheets.shift()))}},{key:"checkSwipe",value:function(e,t){if(!0!==this.pinchZoomDirty&&1===this.app.zoomValue&&!0===this.canSwipe){var i="vertical"==this.orientation?e.y-this.lastPosY:e.x-this.lastPosX;Math.abs(i)>this.swipeThreshold&&(i<0?this.app.openRight():this.app.openLeft(),this.canSwipe=!1,t.preventDefault()),this.lastPosX=e.x,this.lastPosY=e.y}}},{key:"checkCenter",value:function(){var e,t=arguments.length>0&&void 0!==arguments[0]&&arguments[0],i=this.app,a=n.FLIPBOOK_CENTER_SHIFT,o=i.currentPageNumber%2==0,s=this.getBasePage(),r=this.isRTL,l=this.isSingle;e=0===s||this.isBooklet?this.isRTL?a.RIGHT:a.LEFT:s===i.pageCount?r?a.LEFT:a.RIGHT:l?r?o?a.LEFT:a.RIGHT:o?a.RIGHT:a.LEFT:a.NONE,!0!==this.centerNeedsUpdate&&(this.centerNeedsUpdate=this.centerShift!==e),this.centerNeedsUpdate&&(this.centerShift=e,this.updateCenter(t),this.centerNeedsUpdate=!1)}},{key:"updateCenter",value:function(){console.log("UpdateCenter: missing implementation.")}},{key:"reset",value:function(){for(var e,t=0;t<this.sheets.length;t++)(e=this.sheets[t]).reset(),e.pageNumber=-1,e.frontPage&&(e.frontPage.pageNumber=-1),e.backPage&&(e.backPage.pageNumber=-1),e.resetTexture();this.annotedPage=null,this.oldBasePageNumber=-1,this.centerShift=null,this.refresh()}},{key:"handleZoom",value:function(){var e=this.app;e.dimensions;var t=this.getLeftPageTextureSize({zoom:!1,isAnnotation:!0}),i=this.getRightPageTextureSize({zoom:!1,isAnnotation:!0});this.maxZoom,e.zoomValue,this.pureMaxZoom=e.dimensions.maxTextureSize/Math.max(t.height,t.width,i.height,i.width);var n=this.maxZoom=e.options.fakeZoom*this.pureMaxZoom,a=e.zoomValue,o=!1,s=!1;n<this.minZoom&&(n=this.maxZoom=this.minZoom),!0===e.pendingZoom&&null!=e.zoomDelta?a=e.zoomDelta>0?a*e.options.zoomRatio:a/e.options.zoomRatio:null!=this.lastScale&&(a*=this.lastScale,this.lastScale=null),a=F.limitAt(a,this.minZoom,n),e.zoomValueChange=a/e.zoomValue,(e.zoomChanged=e.zoomValue!==a)&&(1===a||1===e.zoomValue)&&(o=1===a,s=1===e.zoomValue),e.zoomValue=a,(s||o)&&(e.container.toggleClass("df-zoom-active",1!==a),s&&this.enterZoom(),o&&this.exitZoom())}},{key:"refresh",value:function(){var e=this.app,t=this.stackCount,i=this.isRTL,a=this.isBooklet,o=this.getBasePage(),s=a?1:2;i&&(o=e.pageCount-o);var r,l=this.oldBasePageNumber,h=Math.ceil(e.pageCount/s),u=Math.floor(t/2);o!==this.oldBasePageNumber&&(this.pageNumberChanged=!0,this.updatePendingStatusClass(!0),this.zoomViewer.reset()),this.sheetsIndexShift(l,o,t);var p=Math.ceil(o/s);for(r=0;r<t;r++){var c=void 0,d=p-u+r;if(i&&(d=h-d-1),null!=(c=this.sheets[r])){c.targetSide=r<u?n.TURN_DIRECTION.LEFT:n.TURN_DIRECTION.RIGHT;var f=c.side!==c.targetSide,g=d!==c.pageNumber,v=f&&!1===c.skipFlip&&1===e.zoomValue;!f&&g&&c.isFlipping&&c.currentTween&&c.currentTween.stop(),c.isHard=this.isSheetHard(d),c.isCover=this.isSheetCover(d),g&&(c.resetTexture(),(this.app.isRTL?c.backPage:c.frontPage).pageNumber=this.isBooklet?d:2*d+1,(this.app.isRTL?c.frontPage:c.backPage).pageNumber=this.isBooklet?-1:2*d+2,e.textureRequestStatus=n.REQUEST_STATUS.ON),c.pageNumber=d,this.refreshSheet({sheet:c,sheetNumber:d,totalSheets:h,zIndex:this.stackCount+(r<u?r-u:u-r),visible:a?i?r<u||c.isFlipping||v:r>=u||c.isFlipping||v:d>=0&&d<h||a&&d===h,index:r,needsFlip:v,midPoint:u})}}this.requestRefresh(!1),e.textureRequestStatus=n.REQUEST_STATUS.ON,this.oldBasePageNumber=o,this.checkCenter(),this.zoomViewer.refresh(),this.pageNumberChanged=!1}},{key:"validatePageChange",value:function(e){if(e===this.app.currentPageNumber)return!1;var t=this.app,i=!this.isFlipping()||void 0===t.oldPageNumber;return(i=i||t.currentPageNumber<e&&t.oldPageNumber<t.currentPageNumber)||t.currentPageNumber>e&&t.oldPageNumber>t.currentPageNumber}},{key:"getVisiblePages",value:function(){for(var e=[],t=this.getBasePage(),i=this.app.zoomValue>1?1:this.isBooklet&&F.isMobile?Math.min(this.stackCount/2,2):this.stackCount/2,n=0;n<i;n++)e.push(t-n),e.push(t+n+1);return this.visiblePagesCache=e,{main:e,buffer:[]}}},{key:"getBasePage",value:function(e){return(void 0===e&&(e=this.app.currentPageNumber),this.isBooklet)?e:2*Math.floor(e/2)}},{key:"getRightPageNumber",value:function(){return this.getBasePage()+(this.isBooklet?0:this.isRTL?0:1)}},{key:"getLeftPageNumber",value:function(){return this.getBasePage()+(this.isBooklet?0:this.isRTL?1:0)}},{key:"afterFlip",value:function(){arguments.length>0&&void 0!==arguments[0]&&arguments[0],!0!==this.isAnimating()&&(this.pagesReady(),this.updatePendingStatusClass())}},{key:"isFlipping",value:function(){var e=!1;return this.sheets.forEach(function(t){!0===t.isFlipping&&(e=!0)}),e}},{key:"isAnimating",value:function(){return this.isFlipping()}},{key:"mouseWheel",value:function(e){this.app.options.mouseScrollAction===n.MOUSE_SCROLL_ACTIONS.ZOOM?this.zoomViewer.mouseWheel(e):N(_(i.prototype),"mouseWheel",this).call(this,e)}},{key:"checkRequestQueue",value:function(){this.app.zoomValue>1?this.zoomViewer.checkRequestQueue():N(_(i.prototype),"checkRequestQueue",this).call(this)}},{key:"updatePan",value:function(){}},{key:"resetPageTween",value:function(){}},{key:"gotoPageCallBack",value:function(){this.resetPageTween(),1!==this.app.zoomValue&&!0===this.app.options.resetZoomBeforeFlip&&this.app.resetZoom(),this.beforeFlip(),this.requestRefresh()}},{key:"beforeFlip",value:function(){this.app.executeCallback("beforeFlip"),1===this.app.zoomValue&&this.playSound()}},{key:"onFlip",value:function(){this.app.executeCallback("onFlip")}},{key:"getAnnotationElement",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]&&arguments[1],n=arguments.length>2&&void 0!==arguments[2]&&arguments[2],a=void 0;return(a=this.app.zoomValue>1||!0===n?this.zoomViewer.getAnnotationElement(e,t):N(_(i.prototype),"getAnnotationElement",this).call(this,e,t))&&(a.parentNode.classList.toggle("df-double-internal",this.isDoubleInternalPage(e)),a.parentNode.classList.toggle("df-double-internal-fix",this.isDoublePageFix(e))),a}},{key:"getTextElement",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]&&arguments[1],n=arguments.length>2&&void 0!==arguments[2]&&arguments[2];return this.app.zoomValue>1||!0===n?this.zoomViewer.getTextElement(e,t):N(_(i.prototype),"getTextElement",this).call(this,e,t)}},{key:"enterZoom",value:function(){this.exchangeTexture(this,this.zoomViewer)}},{key:"exitZoom",value:function(){this.exchangeTexture(this.zoomViewer,this)}},{key:"exchangeTexture",value:function(e,t){var i=this.getBasePage(),n=e.getPageByNumber(i),a=t.getPageByNumber(i);if(a&&"-1"===a.textureStamp?(a.textureStamp=n.textureStamp,a.loadTexture({texture:n.getTexture(!0)}),F.log("Texture Exchanging at "+i)):F.log("Texture Exchanging Bypassed at "+i),!this.isBooklet){var o=e.getPageByNumber(i+1),s=t.getPageByNumber(i+1);s&&"-1"===s.textureStamp?(s.textureStamp=o.textureStamp,s.loadTexture({texture:o.getTexture(!0)}),F.log("Texture Exchanging at "+(i+1))):F.log("Texture Exchanging Bypassed at "+(i+1))}t.pagesReady()}},{key:"setPageMode",value:function(e){var t=this.app,i=!0===e.isSingle;this.pageMode=i?n.FLIPBOOK_PAGE_MODE.SINGLE:n.FLIPBOOK_PAGE_MODE.DOUBLE,this.updatePageMode(),t.resizeRequestStart(),t.viewer.pageMode===n.FLIPBOOK_PAGE_MODE.DOUBLE&&t.ui.controls.pageMode?t.ui.controls.pageMode.removeClass(t.options.icons.doublepage).addClass(t.options.icons.singlepage).attr("title",t.options.text.singlePageMode).html("<span>"+t.options.text.singlePageMode+"</span>"):t.ui.controls.pageMode.addClass(t.options.icons.doublepage).removeClass(t.options.icons.singlepage).attr("title",t.options.text.doublePageMode).html("<span>"+t.options.text.doublePageMode+"</span>")}},{key:"updatePageMode",value:function(){this.app.pageCount<3&&(this.pageMode=n.FLIPBOOK_PAGE_MODE.SINGLE),this.isSingle=this.pageMode===n.FLIPBOOK_PAGE_MODE.SINGLE,this.isBooklet=this.isSingle&&this.singlePageMode===n.FLIPBOOK_SINGLE_PAGE_MODE.BOOKLET,this.app.jumpStep=this.isSingle?1:2,this.totalSheets=Math.ceil(this.app.pageCount/(this.isBooklet?1:2)),this.sheets.length>0&&this.reset()}},{key:"setPage",value:function(e){return e.textureTarget===n.TEXTURE_TARGET.ZOOM?this.zoomViewer.setPage(e):N(_(i.prototype),"setPage",this).call(this,e)}},{key:"_calculateInnerHeight",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:void 0;void 0===e&&(e=this.pageMode===n.FLIPBOOK_PAGE_MODE.SINGLE);var t=this.app.dimensions.defaultPage.viewPort,i=this.availablePageWidth(!1,!0,e),a=this.app.dimensions.maxHeight-this.app.dimensions.padding.height;"vertical"==this.orientation&&!1==e&&(a/=2),this._defaultPageSize=F.contain(t.width,t.height,i,a),this._pageFitArea={width:i,height:a};var o=this.app.dimensions.isFixedHeight?a:this._pageFitArea.height;return this.app.dimensions.isAutoHeight&&!1==this.app.dimensions.isFixedHeight&&(o=Math.floor(this._defaultPageSize.height)),o}},{key:"_getInnerHeight",value:function(){var e=this._calculateInnerHeight();return this.app.dimensions.stage.width=this.app.dimensions.stage.innerWidth+this.app.dimensions.padding.width,this.app.dimensions.stage.height=e+this.app.dimensions.padding.height,e}},{key:"availablePageWidth",value:function(){var e=!(arguments.length>0)||void 0===arguments[0]||arguments[0],t=arguments.length>1&&void 0!==arguments[1]&&arguments[1],i=arguments.length>2&&void 0!==arguments[2]?arguments[2]:void 0;void 0===i&&(i=this.pageMode===n.FLIPBOOK_PAGE_MODE.SINGLE);var a=!0===t?this.app.dimensions.offset.width:0,o=this.app.dimensions.stage.innerWidth+a;return Math.floor((o/=!0===i||"vertical"==this.orientation?1:2)*(e?this.app.zoomValue:1))}},{key:"availablePageHeight",value:function(){var e=!(arguments.length>0)||void 0===arguments[0]||arguments[0],t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:void 0;void 0===t&&(t=this.pageMode===n.FLIPBOOK_PAGE_MODE.SINGLE);var i=this.app.dimensions.stage.innerHeight;return!1===t&&"vertical"==this.orientation&&(i/=2),Math.floor(i*(e?this.app.zoomValue:1))}},{key:"getTextureSize",value:function(e){var t=this.getViewPort(e.pageNumber,!0),i=this.app.options.pixelRatio,n=F.contain(t.width,t.height,i*this.availablePageWidth(e.zoom),i*this.availablePageHeight(e.zoom));return{height:(n=F.containUnStretched(n.width,n.height,this.app.options.maxTextureSize,this.app.options.maxTextureSize)).height,width:n.width}}},{key:"getLeftPageTextureSize",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};return e.pageNumber=this.getLeftPageNumber(),this.getTextureSize(e)}},{key:"getRightPageTextureSize",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};return e.pageNumber=this.getRightPageNumber(),this.getTextureSize(e)}},{key:"filterViewPort",value:function(e,t){var i=!(arguments.length>2)||void 0===arguments[2]||arguments[2];if(void 0!==e){if(!0!=i)return e;var n=e.clone();return n.width=n.width/this.getDoublePageWidthFix(t),n}}},{key:"filterViewPortCanvas",value:function(e,t,i){this.isDoublePageFix(i)&&(e.transform[4]=e.transform[4]-Math.floor(Math.min(t.width,2*e.width-t.width))),e.widthFix=this.isDoubleInternalPage(i)?2:1}},{key:"isClosedPage",value:function(e){return void 0===e&&(e=this.app.currentPageNumber),1===e||e===this.app.jumpStep*Math.ceil(this.app.pageCount/this.app.jumpStep)&&!this.isBooklet}},{key:"isLeftPage",value:function(e){return(void 0===e&&(e=this.app.currentPageNumber),this.isBooklet)?this.isRTL:e%2==(this.isRTL?1:0)}},{key:"cleanPage",value:function(e){if(!this.isDoubleInternalPage(e))return N(_(i.prototype),"cleanPage",this).call(this,e);var t=e+(e%2==1?-1:1);return!1===this.app.provider.requestedPages[e]&&!1===this.app.provider.requestedPages[t]}},{key:"onReady",value:function(){N(_(i.prototype),"onReady",this).call(this)}},{key:"searchPage",value:function(e){return{include:!this.isDoublePageFix(e),label:this.app.provider.getLabelforPage(e)+(this.isDoubleInternalPage(e)?"-"+this.app.provider.getLabelforPage(e+1):"")}}}]),i}(g),B=/*#__PURE__*/function(e){A(i,e);var t=D(i);function i(e,n){var a;return R(this,i),e.viewerClass="df-zoomview "+(e.viewerClass||""),(a=t.call(this,e,n)).viewer=a.app.viewer,a.events={},a.init(),a.initEvents(),a.left=0,a.top=0,a}return I(i,[{key:"init",value:function(){this.leftPage=new S,this.rightPage=new S,this.pages.push(this.leftPage),this.pages.push(this.rightPage),this.leftPage.element.addClass("df-page-back"),this.rightPage.element.addClass("df-page-front"),this.wrapper.append(this.leftPage.element),this.wrapper.append(this.rightPage.element),this.bookShadow=jQuery("<div>",{class:"df-book-shadow"}),this.wrapper.append(this.bookShadow),this.wrapper.addClass("df-sheet")}},{key:"initEvents",value:function(){this.stageDOM=this.element[0],N(_(i.prototype),"initEvents",this).call(this)}},{key:"dispose",value:function(){this.element.remove()}},{key:"resize",value:function(){var e=this.app.dimensions,t=e.padding,i=this.app.viewer.availablePageHeight(),a=this.app.viewer.availablePageWidth(),o=this.fullWidth=a*(this.app.viewer.pageMode===n.FLIPBOOK_PAGE_MODE.SINGLE?1:2),s=e.stage.innerWidth,r=e.stage.innerHeight,l=this.shiftHeight=Math.ceil(F.limitAt((i-r)/2,0,i)),h=this.shiftWidth=Math.ceil(F.limitAt((o-s)/2,0,o));1===this.app.zoomValue&&(this.left=0,this.top=0),this.element.css({top:-l,bottom:-l,right:-h,left:-h,paddingTop:t.top,paddingRight:t.right,paddingBottom:t.bottom,paddingLeft:t.left,transform:"translate3d("+this.left+"px,"+this.top+"px,0)"}),this.wrapper.css({width:o,height:i,marginTop:e.height-i-t.height>0?(e.height-t.height-i)/2:0}),this.wrapper.height(i).width(o-o%2),!0===this.app.pendingZoom&&this.zoom(),this.app.viewer.annotedPage=null,this.pagesReady()}},{key:"zoom",value:function(){var e=this.app;if(e.zoomChanged){var t=e.dimensions.origin,i=e.zoomValueChange;if(1===e.zoomValue)this.left=0,this.top=0;else{this.left*=i,this.top*=i,e.viewer.zoomCenter||(e.viewer.zoomCenter={x:t.x,y:t.y});var n={raw:e.viewer.zoomCenter},a={raw:{}},o=(n.raw.x-t.x)*i,s=(n.raw.y-t.y)*i;a.raw.x=t.x+o,a.raw.y=t.y+s,this.startPoint=a,this.pan(n),this.startPoint=null}}e.viewer.zoomCenter=null}},{key:"reset",value:function(){this.leftPage.resetTexture(),this.rightPage.resetTexture()}},{key:"refresh",value:function(){var e=this.app,t=e.viewer,i=t.getBasePage(),n=t.isBooklet?!e.isRTL:e.isRTL,a=n?this.rightPage:this.leftPage,o=n?this.leftPage:this.rightPage;a.pageNumber=i,o.pageNumber=i+1,a.updateCSS({display:0===i?"none":"block"}),o.updateCSS({display:o.pageNumber>e.pageCount||t.isBooklet?"none":"block"})}},{key:"updateCenter",value:function(){if(null!==this&&null!==this.app.viewer){var e=this.app.viewer.centerShift,t=this.app.viewer.isRTL,i=!t&&this.app.currentPageNumber>1||t&&this.app.currentPageNumber<this.app.pageCount?this.leftSheetWidth:this.rightSheetWidth;this.wrapper[0].style.left=e*i/2+"px"}}},{key:"isDoubleInternalPage",value:function(e){return this.app.viewer.isDoubleInternalPage(e)}},{key:"pagesReady",value:function(){if(!this.app.viewer.isFlipping()&&(1!==this.app.zoomValue&&this.app.viewer.updatePendingStatusClass(!1),!1===this.app.options.flipbookFitPages)){var e=this.app.viewer.getBasePage(),t=this.leftViewPort=this.app.viewer.getViewPort(e+(this.app.viewer.isBooklet?0:this.app.viewer.isRTL?1:0)),i=this.rightViewPort=this.app.viewer.getViewPort(e+(this.app.viewer.isBooklet?0:this.app.viewer.isRTL?0:1));if(t){var n=F.contain(t.width,t.height,this.app.viewer.availablePageWidth(),this.app.viewer.availablePageHeight());this.leftSheetWidth=Math.floor(n.width),this.leftSheetHeight=Math.floor(n.height),this.leftSheetTop=(this.app.viewer.availablePageHeight()-this.leftSheetHeight)/2,this.app.zoomValue>this.app.viewer.pureMaxZoom&&this.leftPage.contentLayer[0].style.setProperty("--scale-factor",this.leftSheetHeight/t.height)}if(i){var a=F.contain(i.width,i.height,this.app.viewer.availablePageWidth(),this.app.viewer.availablePageHeight());this.rightSheetWidth=Math.floor(a.width),this.rightSheetHeight=Math.floor(a.height),this.rightSheetTop=(this.app.viewer.availablePageHeight()-this.rightSheetHeight)/2,this.app.zoomValue>this.app.viewer.pureMaxZoom&&this.rightPage.contentLayer[0].style.setProperty("--scale-factor",this.rightSheetHeight/i.height)}(void 0!=t||void 0!=i)&&(this.totalSheetsWidth=this.leftSheetWidth+this.rightSheetWidth,this.leftPage.element.height(Math.floor(this.leftSheetHeight)).width(Math.floor(this.leftSheetWidth)).css({transform:"translateY("+Math.floor(this.leftSheetTop)+"px)"}),this.rightPage.element.height(Math.floor(this.rightSheetHeight)).width(Math.floor(this.rightSheetWidth)).css({transform:"translateY("+Math.floor(this.rightSheetTop)+"px)"}))}}},{key:"textureLoadedCallback",value:function(e){this.getPageByNumber(e.pageNumber),this.pagesReady()}}]),i}(g),U=/*#__PURE__*/function(){function e(t){R(this,e),this.parentElement=t.parentElement,this.isFlipping=!1,this.isOneSided=!1,this.viewer=t.viewer,this.frontPage=null,this.backPage=null,this.pageNumber=void 0,this.animateToReset=null}return I(e,[{key:"init",value:function(){}},{key:"flip",value:function(){}},{key:"frontImage",value:function(e){this.frontPage.loadTexture({texture:e.texture,callback:e.callback})}},{key:"backImage",value:function(e){this.backPage.loadTexture({texture:e.texture,callback:e.callback})}},{key:"resetTexture",value:function(){this.frontPage.resetTexture(),this.backPage.resetTexture()}},{key:"reset",value:function(){this.animateToReset=null,this.isFlipping=!1,this.currentTween=null,this.pendingPoint=null,this.magnetic=!1,this.skipFlip=!0,this.animateToReset=null,this.viewer.dragPage=null,this.viewer.flipPage=null,this.viewer.corner=n.TURN_CORNER.NONE}}]),e}();function H(e,t){if(!(e instanceof t))throw TypeError("Cannot call a class as a function")}function V(e,t){for(var i=0;i<t.length;i++){var n=t[i];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function W(e,t,i){return t&&V(e.prototype,t),i&&V(e,i),e}function j(e,t,i){return(j="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(e,t,i){var n=function(e,t){for(;!Object.prototype.hasOwnProperty.call(e,t)&&null!==(e=q(e)););return e}(e,t);if(n){var a=Object.getOwnPropertyDescriptor(n,t);return a.get?a.get.call(i||e):a.value}})(e,t,i||e)}function q(e){return(q=Object.setPrototypeOf?Object.getPrototypeOf:function(e){return e.__proto__||Object.getPrototypeOf(e)})(e)}function G(e,t){if("function"!=typeof t&&null!==t)throw TypeError("Super expression must either be null or a function");e.prototype=Object.create(t&&t.prototype,{constructor:{value:e,writable:!0,configurable:!0}}),t&&Z(e,t)}function Z(e,t){return(Z=Object.setPrototypeOf||function(e,t){return e.__proto__=t,e})(e,t)}function K(e){var t=function(){if("undefined"==typeof Reflect||!Reflect.construct||Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],function(){})),!0}catch(e){return!1}}();return function(){var i,n=q(e);return i=t?Reflect.construct(n,arguments,q(this).constructor):n.apply(this,arguments),i&&("object"==(i&&"undefined"!=typeof Symbol&&i.constructor===Symbol?"symbol":typeof i)||"function"==typeof i)?i:function(e){if(void 0===e)throw ReferenceError("this hasn't been initialised - super() hasn't been called");return e}(this)}}var Q=n.utils,X=/*#__PURE__*/function(e){G(i,e);var t=K(i);function i(e){var n;return H(this,i),(n=t.call(this,e)).init(),n}return W(i,[{key:"init",value:function(){var e="<div>",t=this.element=jQuery(e,{class:"df-sheet"}),i=this.frontPage=new S;i.element.addClass("df-page-front");var n=this.backPage=new S;n.element.addClass("df-page-back");var a=this.wrapper=jQuery(e,{class:"df-sheet-wrapper"}),o=this.foldInnerShadow=jQuery(e,{class:"df-sheet-fold-inner-shadow"}),s=this.foldOuterShadow=jQuery(e,{class:"df-sheet-fold-outer-shadow"});this.parentElement.append(t),t.append(a),t.append(s),a.append(i.element),a.append(n.element),a.append(o)}},{key:"updateCSS",value:function(e){this.element.css(e)}},{key:"resetCSS",value:function(){this.wrapper.css({transform:""}),this.frontPage.resetCSS(),this.backPage.resetCSS()}},{key:"updateSize",value:function(e,t,i){e=Math.floor(e),t=Math.floor(t),i=Math.floor(i),this.wrapper[0].style.height=this.wrapper[0].style.width=Math.ceil(Q.distOrigin(e,t)*this.viewer.app.zoomValue)+"px",this.element[0].style.height=this.frontPage.element[0].style.height=this.backPage.element[0].style.height=this.foldInnerShadow[0].style.height=t+"px",this.element[0].style.width=this.frontPage.element[0].style.width=this.backPage.element[0].style.width=this.foldInnerShadow[0].style.width=e+"px",this.element[0].style.transform="translateY("+i+"px)"}},{key:"flip",value:function(e){var t=this;if(e=e||t.pendingPoint,null!=t&&null!=t.viewer){t.isFlipping=!0,t.viewer.flipPage=t;var i,a,o=t.viewer.isBooklet,s=t.side===n.TURN_DIRECTION.RIGHT,r=t.viewer.isRTL,l=t.viewer.corner===n.TURN_CORNER.BL||t.viewer.corner===n.TURN_CORNER.BR?t.element.height():0,h=t.viewer.leftSheetWidth+t.viewer.rightSheetWidth,u=0;a=t.end=t&&!0===t.animateToReset?{x:s?h:0,y:l}:{x:s?0:h,y:l},t.flipEasing=t.isHard?TWEEN.Easing.Quadratic.InOut:TWEEN.Easing.Linear.None;var p=t.viewer.app.options.duration;!0===t.isHard?(null!=e&&(u=Q.angleByDistance(e.distance,e.fullWidth)),i=t.init={angle:u*(s?-1:1)},a=t.end=t&&!0===t.animateToReset?{angle:s?0:-0}:{angle:s?-180:180}):null==e?i=t.init=t&&!0===t.animateToReset?{x:s?0:h,y:0}:{x:s?h:0,y:0}:(i=t.init={x:e.x,y:e.y,opacity:1},p=t.viewer.app.options.duration*Q.distPoints(i.x,i.y,a.x,a.y)/t.viewer.fullWidth,p=Q.limitAt(p,t.viewer.app.options.duration/3,t.viewer.duration)),i.index=0,a.index=1,t.isFlipping=!0,o&&(!s&&!r||s&&r)&&(t.element[0].style.opacity=0),!0===t.isHard?t.currentTween=new TWEEN.Tween(i).delay(0).to(a,t.viewer.app.options.duration).onUpdate(function(){t.updateTween(this)}).easing(t.flipEasing).onComplete(t.completeTween.bind(t)).start():null==e?t.currentTween=new TWEEN.Tween(i).delay(0).to(a,t.viewer.app.options.duration).onUpdate(function(){t.updateTween(this)}).easing(TWEEN.Easing.Sinusoidal.Out).onComplete(t.completeTween.bind(t)).start():t.currentTween=new TWEEN.Tween(i).delay(0).to(a,p).onUpdate(function(){t.updateTween(this)}).easing(TWEEN.Easing.Sinusoidal.Out).onComplete(t.completeTween.bind(t)).start()}}},{key:"updatePoint",value:function(e){if(null!=e){var t=this.element.width(),i=this.element.height(),a=this.viewer.corner!==n.TURN_CORNER.NONE?this.viewer.corner:e.corner,o=n.TURN_CORNER,s=this.side===n.TURN_DIRECTION.RIGHT,r=a===o.BL||a===o.BR;e.rx=!0===s?this.viewer.leftSheetWidth+t-e.x:e.x,e.ry=!0===r?i-e.y:e.y;var l=Math.atan2(e.ry,e.rx);l=Math.PI/2-Q.limitAt(l,0,Q.toRad(90));var h=t-e.rx/2,u=e.ry/2,p=Math.max(0,Math.sin(l-Math.atan2(u,h))*Q.distOrigin(h,u)),c=.5*Q.distOrigin(e.rx,e.ry),d=Math.ceil(t-p*Math.sin(l)),f=Math.ceil(p*Math.cos(l)),g=Q.toDeg(l),v=r?s?180+(90-g):180+g:s?g:90-g,m=r?s?180+(90-g):g:s?g+180:v,y=r?s?90-g:g+90:s?v-90:v+180,b=s?t-d:d,w=r?i+f:-f,P=s?-d:d-t,S=r?-i-f:f,x=Q.limitAt(.5*e.distance/t,0,.5),C=Q.limitAt((this.viewer.leftSheetWidth+t-e.rx)*.5/t,.05,.3);this.element.addClass("df-folding");var E=s?this.backPage.element:this.frontPage.element,T=s?this.frontPage.element:this.backPage.element,k=this.foldOuterShadow,O=this.foldInnerShadow;this.wrapper.css({transform:Q.translateStr(b,w)+Q.rotateStr(v)}),T.css({transform:Q.rotateStr(-v)+Q.translateStr(-b,-w)}),E.css({transform:Q.rotateStr(m)+Q.translateStr(P,S),boxShadow:"rgba(0, 0, 0, "+x+") 0px 0px 20px"}),O.css({transform:Q.rotateStr(m)+Q.translateStr(P,S),opacity:C/2,backgroundImage:Q.prefix.css+"linear-gradient( "+y+"deg, rgba(0, 0, 0, 0.25) , rgb(0, 0, 0) "+.7*c+"px, rgb(255, 255, 255) "+c+"px)"}),k.css({opacity:C/2,left:s?"auto":0,right:s?0:"auto",backgroundImage:Q.prefix.css+"linear-gradient( "+(-y+180)+"deg, rgba(0, 0, 0,0) "+c/3+"px, rgb(0, 0, 0) "+c+"px)"})}}},{key:"updateAngle",value:function(e,t){var i=5*this.element.width();this.wrapper.css({perspective:i,perspectiveOrigin:!0===t?"0% 50%":"100% 50%"}),this.element.addClass("df-folding"),this.backPage.updateCSS({display:!0===t?e<=-90?"block":"none":e<90?"block":"none",transform:("MfS"!==Q.prefix.dom?"":"perspective("+i+"px) ")+(!0===t?"translateX(-100%) ":"")+"rotateY("+((!0===t?180:0)+e)+"deg)"}),this.frontPage.updateCSS({display:!0===t?e>-90?"block":"none":e>=90?"block":"none",transform:("MSd"!==Q.prefix.dom?"":"perspective("+i+"px) ")+(!1===t?"translateX(100%) ":"")+"rotateY("+((!1===t?-180:0)+e)+"deg)"})}},{key:"updateTween",value:function(e){var t=this.viewer.isBooklet,i=this.side===n.TURN_DIRECTION.RIGHT,a=this.viewer.isRTL,o=!0===this.animateToReset;!0===this.isHard?(this.updateAngle(e.angle,i),this.angle=e.angle):(this.updatePoint({x:e.x,y:e.y}),this.x=e.x,this.y=e.y),t&&!o&&(this.element[0].style.opacity=i&&!a||!i&&a?e.index>.5?2*(1-e.index):1:e.index<.5?2*e.index:1)}},{key:"completeTween",value:function(){!0===this.isHard?(this.updateAngle(this.end.angle),this.backPage.element.css({display:"block"}),this.frontPage.element.css({display:"block"})):this.updatePoint({x:this.end.x,y:this.end.y}),this.element[0].style.opacity=1,!0!==this.animateToReset&&(this.side=this.targetSide),this.reset(),this.viewer.onFlip(),this.viewer.afterFlip(),this.viewer.requestRefresh()}}]),i}(U),Y=/*#__PURE__*/function(e){G(i,e);var t=K(i);function i(e,a){var o,s;return H(this,i),e.viewerClass=null!==(s=e.viewerClass)&&void 0!==s?s:"df-flipbook-2d",e.skipViewerLoaded=!0,(o=t.call(this,e,a)).bookShadow=jQuery("<div>",{class:"df-book-shadow"}),o.wrapper.append(o.bookShadow),o.corner=n.TURN_CORNER.NONE,a._viewerPrepared(),o}return W(i,[{key:"init",value:function(){j(q(i.prototype),"init",this).call(this),this.initEvents(),this.initPages()}},{key:"initEvents",value:function(){this.stageDOM=this.element[0],j(q(i.prototype),"initEvents",this).call(this)}},{key:"dispose",value:function(){j(q(i.prototype),"dispose",this).call(this),this.element.remove()}},{key:"initPages",value:function(){for(var e=0;e<this.stackCount;e++){var t=new X({parentElement:this.wrapper});t.index=e,t.viewer=this,this.sheets.push(t),this.pages.push(t.frontPage),this.pages.push(t.backPage)}}},{key:"resize",value:function(){j(q(i.prototype),"resize",this).call(this);var e=this.app.dimensions,t=e.padding,n=this.availablePageHeight(),a=this.availablePageWidth(),o=this.fullWidth=2*a,s=e.width,r=e.height,l=this.shiftHeight=Math.ceil(Q.limitAt((n-r+t.height)/2,0,n)),h=this.shiftWidth=Math.ceil(Q.limitAt((o-s+t.width)/2,0,o));1===this.app.zoomValue&&(this.left=0,this.top=0),this.element.css({top:-l,bottom:-l,right:-h,left:-h,paddingTop:t.top,paddingRight:t.right,paddingBottom:t.bottom,paddingLeft:t.left,transform:"translate3d("+this.left+"px,"+this.top+"px,0)"}),this.wrapper.css({marginTop:Math.max(e.height-n-t.height)/2,height:n,width:o-o%2}),this.zoomViewer.resize(),this.centerNeedsUpdate=!0,this.checkCenter(!0),this.pagesReady()}},{key:"updateCenter",value:function(){var e=arguments.length>0&&void 0!==arguments[0]&&arguments[0],t=this.centerShift*(this.isRTL,this.isLeftPage()?this.leftSheetWidth:this.rightSheetWidth)/2;this.seamPosition=(-this.app.dimensions.offset.width+this.app.dimensions.containerWidth)/2+t,this.wrapperShift=(this.isSingle?-this.app.dimensions.stage.innerWidth/2:0)+t,this.wrapper[0].style.left=this.wrapperShift+"px",this.wrapper[0].style.transition=e?"none":"",this.zoomViewer.updateCenter()}},{key:"refreshSheet",value:function(e){var t=e.sheet,i=e.sheetNumber;!1===t.isFlipping&&(e.needsFlip?(t.element.addClass("df-flipping"),t.flip()):(t.skipFlip=!1,t.element.removeClass("df-flipping df-quick-turn df-folding df-left-side df-right-side"),t.element.addClass(t.targetSide===n.TURN_DIRECTION.LEFT?"df-left-side":"df-right-side"),t.side=t.targetSide,t.targetSide===n.TURN_DIRECTION.LEFT?t.updateSize(this.leftSheetWidth,this.leftSheetHeight,this.leftSheetTop):t.updateSize(this.rightSheetWidth,this.rightSheetHeight,this.rightSheetTop))),t.visible=e.visible,t.isHard?t.element.addClass("df-hard-sheet"):(t.element.removeClass("df-hard-sheet"),t.frontPage.updateCSS({display:"block"}),t.backPage.updateCSS({display:"block"})),t.updateCSS({display:!0===t.visible?"block":"none",zIndex:e.zIndex}),null==t.pendingPoint&&!1===t.isFlipping&&t.resetCSS(),i!==t.pageNumber&&(t.element.attr("number",i),t.backPage.element.attr("pagenumber",t.backPage.pageNumber),t.frontPage.element.attr("pagenumber",t.frontPage.pageNumber))}},{key:"eventToPoint",value:function(e){e=Q.fixMouseEvent(e);var t,i,a,o,s,r,l,h,u,p=this.wrapper[0].getBoundingClientRect(),c=this.is3D,d=this.sheets,f=(this.app.dimensions,{x:e.clientX,y:e.clientY}),g=this.parentElement[0].getBoundingClientRect();f.x=f.x-g.left,f.y=f.y-g.top,t=(u=this.dragSheet?this.dragSheet.side===n.TURN_DIRECTION.RIGHT:f.x>this.seamPosition)?this.rightSheetWidth:this.leftSheetWidth,a=u?this.rightSheetHeight:this.leftSheetHeight,i=this.rightSheetWidth+this.leftSheetWidth,s=u?this.rightSheetTop:this.leftSheetTop,o=f.x-(this.seamPosition-this.leftSheetWidth),s=f.y-(p.top-g.top)-s,r=this.drag===n.TURN_DIRECTION.NONE?o<t?o:i-o:this.drag===n.TURN_DIRECTION.LEFT?o:i-o,l=u?d[this.stackCount/2]:d[this.stackCount/2-1],h=o<this.foldSense?n.TURN_DIRECTION.LEFT:o>i-this.foldSense?n.TURN_DIRECTION.RIGHT:n.TURN_DIRECTION.NONE;var v,m=s,y=this.foldSense;return v=o>=0&&o<y?m>=0&&m<=y?n.TURN_CORNER.TL:m>=a-y&&m<=a?n.TURN_CORNER.BL:m>y&&m<a-y?n.TURN_CORNER.L:n.TURN_CORNER.NONE:o>=i-y&&o<=i?m>=0&&m<=y?n.TURN_CORNER.TR:m>=a-y&&m<=a?n.TURN_CORNER.BR:m>y&&m<a-y?n.TURN_CORNER.R:n.TURN_CORNER.NONE:n.TURN_CORNER.NONE,{isInsideSheet:o>=0&&o<=i&&m>=0&&m<=a,isInsideCorner:v!==n.TURN_CORNER.NONE&&v!==n.TURN_CORNER.L&&v!==n.TURN_CORNER.R,x:c?f.x:o,y:c?f.y:s,fullWidth:i,sheetWidth:t,sheetHeight:a,rawDistance:i-o,distance:r,sheet:l,drag:h,foldSense:this.foldSense,event:e,raw:f,corner:v}}},{key:"pan",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]&&arguments[1];Q.pan(this,e,t)}},{key:"mouseMove",value:function(e){var t=this.eventToPoint(e);if(null!=e.touches&&2==e.touches.length){this.pinchMove(e);return}1!==this.app.zoomValue&&null!=this.startPoint&&!0===this.canSwipe&&(this.pan(t),e.preventDefault());var i=this.dragSheet||t.sheet;if(null==this.flipPage&&(null!=this.dragSheet||!0===t.isInsideCorner)){null!=this.dragSheet||(t.y=Q.limitAt(t.y,1,this.availablePageHeight()-1),t.x=Q.limitAt(t.x,1,t.fullWidth-1));var a=null!=this.dragSheet?this.corner:t.corner;if(i.isHard){var o=a===n.TURN_CORNER.BR||a===n.TURN_CORNER.TR,s=Q.angleByDistance(t.distance,t.fullWidth);i.updateAngle(s*(o?-1:1),o)}else i.updatePoint(t);i.magnetic=!0,i.magneticCorner=t.corner,e.preventDefault()}null==this.dragSheet&&null!=i&&!1===t.isInsideCorner&&!0===i.magnetic&&(i.pendingPoint=t,i.animateToReset=!0,i.magnetic=!1,this.corner=i.magneticCorner,i.flip(i.pendingPoint),i.pendingPoint=null),this.checkSwipe(t,e)}},{key:"mouseUp",value:function(e){if(null!=this.startPoint&&(e.touches||0===e.button)){if(null==this.dragSheet&&null!=e.touches&&0==e.touches.length){this.pinchUp(e);return}var t=this.eventToPoint(e),i=e.target||e.originalTarget,a=1===this.app.zoomValue&&t.x===this.startPoint.x&&t.y===this.startPoint.y&&"A"!==i.nodeName;if(!0===e.ctrlKey&&a)this.zoomOnPoint(t);else if(this.dragSheet){e.preventDefault();var o=this.dragSheet;if(o.pendingPoint=t,this.drag=t.drag,a&&(!0===t.isInsideCorner||t.isInsideSheet&&this.clickAction===n.MOUSE_CLICK_ACTIONS.NAV))t.corner.indexOf("l")>-1?this.app.openLeft():this.app.openRight();else{var s=this.getBasePage();t.distance>t.sheetWidth/2&&(t.sheet.side===n.TURN_DIRECTION.LEFT?this.app.openLeft():this.app.openRight()),s===this.getBasePage()&&(o.animateToReset=!0,o.flip(t))}this.dragSheet=null,o.magnetic=!1}else a&&!t.sheet.isFlipping&&t.isInsideSheet&&this.clickAction===n.MOUSE_CLICK_ACTIONS.NAV&&("left"===t.sheet.side?this.app.openLeft():this.app.openRight());this.startPoint=null,this.canSwipe=!1,this.drag=n.TURN_DIRECTION.NONE}}},{key:"mouseDown",value:function(e){if(e.touches||0===e.button){if(null!=e.touches&&2==e.touches.length){this.pinchDown(e);return}var t=this.eventToPoint(e);this.startPoint=t,this.lastPosX=t.x,this.lastPosY=t.y,t.isInsideCorner&&null==this.flipPage?(this.dragSheet=t.sheet,this.drag=t.drag,this.corner=t.corner,0===t.sheet.pageNumber?this.bookShadow.css({width:"50%",left:this.app.isRTL?0:"50%",transitionDelay:""}):t.sheet.pageNumber===Math.ceil(this.app.pageCount/2)-1&&this.bookShadow.css({width:"50%",left:this.app.isRTL?"50%":0,transitionDelay:""})):this.canSwipe=!0}}},{key:"onScroll",value:function(e){}},{key:"resetPageTween",value:function(){for(var e=0;e<this.stackCount;e++){var t=this.sheets[e];t.currentTween&&t.currentTween.complete(!0)}this.requestRefresh()}},{key:"pagesReady",value:function(){if(!this.isFlipping()){if(!1===this.app.options.flipbookFitPages){var e=this.app.viewer.getBasePage(),t=this.leftViewport=this.getViewPort(e+(this.isBooklet?0:this.isRTL?1:0)),i=this.rightViewPort=this.getViewPort(e+(this.isBooklet?0:this.isRTL?0:1));if(t){var a=Q.contain(t.width,t.height,this.availablePageWidth(),this.availablePageHeight());this.leftSheetWidth=Math.floor(a.width),this.leftSheetHeight=Math.floor(a.height),this.leftSheetTop=(this.availablePageHeight()-this.leftSheetHeight)/2}if(i){var o=Q.contain(i.width,i.height,this.availablePageWidth(),this.availablePageHeight());this.rightSheetWidth=Math.floor(o.width),this.rightSheetHeight=Math.floor(o.height),this.rightSheetTop=(this.availablePageHeight()-this.rightSheetHeight)/2}this.totalSheetsWidth=this.leftSheetWidth+this.rightSheetWidth;for(var s=0;s<this.sheets.length;s++){var 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t,i,n,a,o=new e.Matrix4,s={camera:{fov:0,style:""},objects:{}},r=document.createElement("div");r.style.overflow="hidden",r.style.WebkitTransformStyle="preserve-3d",r.style.MozTransformStyle="preserve-3d",r.style.oTransformStyle="preserve-3d",r.style.transformStyle="preserve-3d",this.domElement=r;var h=document.createElement("div");h.style.WebkitTransformStyle="preserve-3d",h.style.MozTransformStyle="preserve-3d",h.style.oTransformStyle="preserve-3d",h.style.transformStyle="preserve-3d",r.appendChild(h),this.setClearColor=function(){},this.getSize=function(){return{width:t,height:i}},this.setSize=function(e,o){t=e,i=o,n=t/2,a=i/2,r.style.width=e+"px",r.style.height=o+"px",h.style.width=e+"px",h.style.height=o+"px"};var u=function(e){return Math.abs(e)<Number.EPSILON?0:e},p=function(e){var t=e.elements;return"matrix3d("+u(t[0])+","+u(-t[1])+","+u(t[2])+","+u(t[3])+","+u(t[4])+","+u(-t[5])+","+u(t[6])+","+u(t[7])+","+u(t[8])+","+u(-t[9])+","+u(t[10])+","+u(t[11])+","+u(t[12])+","+u(-t[13])+","+u(t[14])+","+u(t[15])+")"},c=function(e){var t=e.elements;return"translate3d(-50%,-50%,0) matrix3d("+u(t[0])+","+u(t[1])+","+u(t[2])+","+u(t[3])+","+u(-t[4])+","+u(-t[5])+","+u(-t[6])+","+u(-t[7])+","+u(t[8])+","+u(t[9])+","+u(t[10])+","+u(t[11])+","+u(t[12])+","+u(t[13])+","+u(t[14])+","+u(t[15])+")"},d=function(t,i){if(ea(t,e.CSS3DObject)){ea(t,e.CSS3DSprite)?(o.copy(i.matrixWorldInverse),o.transpose(),o.copyPosition(t.matrixWorld),o.scale(t.scale),o.elements[3]=0,o.elements[7]=0,o.elements[11]=0,o.elements[15]=1,n=c(o)):n=c(t.matrixWorld);var n,a=t.element,r=s.objects[t.id];(void 0===r||r!==n)&&(a.style.WebkitTransform=n,a.style.MozTransform=n,a.style.oTransform=n,a.style.transform=n,s.objects[t.id]=n),a.parentNode!==h&&h.appendChild(a)}for(var l=0,u=t.children.length;l<u;l++)d(t.children[l],i)};this.render=function(t,o){var l=.5/Math.tan(e.Math.degToRad(.5*o.fov))*i;s.camera.fov!==l&&(r.style.WebkitPerspective=l+"px",r.style.MozPerspective=l+"px",r.style.oPerspective=l+"px",r.style.perspective=l+"px",s.camera.fov=l),t.updateMatrixWorld(),null===o.parent&&o.updateMatrixWorld(),o.matrixWorldInverse.invert?o.matrixWorldInverse.copy(o.matrixWorld).invert():o.matrixWorldInverse.getInverse(o.matrixWorld);var u="translate3d(0,0,"+l+"px)"+p(o.matrixWorldInverse)+" translate3d("+n+"px,"+a+"px, 0)";s.camera.style!==u&&(h.style.WebkitTransform=u,h.style.MozTransform=u,h.style.oTransform=u,h.style.transform=u,s.camera.style=u),d(t,o)}}}};var em=n.utils,ey=/*#__PURE__*/function(e){ef(i,e);var t=ev(i);function i(e){var n;return eh(this,i),(n=t.call(this,e)).flexibility=e.flexibility,n.sheetAngle=180,n.curveAngle=0,n.parent3D=e.parent3D,n.segments=e.segments||50,n.width=e.width||100,n.height=e.height||100,n.depth=e.depth||.5,n.matColor="white",n.fallbackMatColor=er.WHITE_COLOR,n.init(),n.bumpScale=[0,0,0,0,1,1],n}return ep(i,[{key:"init",value:function(){this.element=new er.Paper({parent3D:this.parent3D,segments:this.segments,depth:this.depth,height:this.height,width:this.width,flatShading:0===this.flexibility}),this.element.sheet=this,this.frontPage=new ew({sheet:this,face:5}),this.backPage=new ew({sheet:this,face:4}),this.reset(),this.updateAngle()}},{key:"setMatColor",value:function(e,t){if(this.matColor=new THREE.Color(e),void 0===t)for(var i=0;i<6;i++)this.element.material[i].color=this.matColor;else this.element.material[t].color=this.matColor}},{key:"getBumpScale",value:function(e){return this.bumpScale[e]}},{key:"resetMatColor",value:function(e,t){this.element.material[e].color=t?this.matColor:this.fallbackMatColor}},{key:"frontImage",value:function(e,t){this.element.frontImage(e,t)}},{key:"backImage",value:function(e,t){this.element.backImage(e,t)}},{key:"updateAngle",value:function(){if(void 0!==this.viewer&&null!==this.viewer){var e=!0===this.isHard?0:this.flexibility,t=("vertical"===this.viewer.orientation?this.height:this.width)*(1-Math.sin(e/2*(e/2))/2-e/20);this.element.scale.y=("vertical"===this.viewer.orientation?this.width:this.height)/this.element.geometry.parameters.height;var i=this.segments,n=t/1,a=n*e,o=[],s=[],r=[],l=[],h=[],u=[],p=this.depth,c=0,d=[];d.push(c),h[0]=[],u[0]=[];var f=this.sheetAngle*Math.PI/180;"vertical"!==this.viewer.orientation&&(this.element.position.x=-Math.cos(f)*this.viewer.pageOffset),"vertical"===this.viewer.orientation&&(this.element.position.y=Math.cos(f)*this.viewer.pageOffset);var g=!0===this.isHard?f:this.curveAngle*Math.PI/180,v=this.sheetAngle*Math.PI/180,m=v-Math.PI/2,y=Math.sin(m)*p/2;h[0][0]=h[0][1]=new THREE.Vector3(-n*Math.cos(f),0,Math.sin(f)*n-y),u[0][0]=u[0][1]=new THREE.Vector3(h[0][0].x-Math.cos(m)*p,0,h[0][0].z+2*y),h[0][1]=new THREE.Vector3(-n/2*Math.cos(g),0,n/2*Math.sin(g)-y),u[0][1]=new THREE.Vector3(h[0][1].x-Math.cos(m)*p,0,h[0][1].z+2*y),v=(45+this.sheetAngle/2)*Math.PI/180,h[0][2]=new THREE.Vector3(-Math.cos(v)*a/2,0,Math.sin(v)*a-y),u[0][2]=new THREE.Vector3(h[0][2].x+Math.cos(m)*p,0,h[0][2].z+2*y),5e-4>Math.abs(u[0][2].x-0)&&(u[0][2].x=0),h[0][3]=new THREE.Vector3(0,0,-y),u[0][3]=new THREE.Vector3(h[0][3].x-Math.cos(m)*p,0,h[0][3].z+2*y),5e-4>Math.abs(u[0][3].x-0)&&(u[0][3].x=0);for(var b=0;b<1;b++){var w=Math.max(this.segments-1,1);o[b]=new THREE.CubicBezierCurve3(h[b][0],h[b][1],h[b][2],h[b][3]),r[b]=o[b].getPoints(w),w>2&&r[b].push(new THREE.Vector3().copy(r[b][w]));for(var P=void 0,S=r[b][0],x=1;x<r[b].length;x++)c+=(P=r[b][x]).distanceTo(S),d.push(c),S=P;s[b]=new THREE.CubicBezierCurve3(u[b][0],u[b][1],u[b][2],u[b][3]),l[b]=s[b].getPoints(w),w>2&&l[b].push(new THREE.Vector3().copy(l[b][w]))}var C=this.element.geometry;if(void 0!==C.attributes){var E=C.attributes.position,T=C.attributes.uv,k=i+1;E.setZ(0,r[0][i].z),E.setZ(2,r[0][i].z),E.setX(0,r[0][i].x),E.setX(2,r[0][i].x),E.setZ(1,l[0][i].z),E.setZ(3,l[0][i].z),E.setX(1,l[0][i].x),E.setX(3,l[0][i].x),E.setZ(5,r[0][0].z),E.setZ(7,r[0][0].z),E.setX(5,r[0][0].x),E.setX(7,r[0][0].x),E.setZ(4,l[0][0].z),E.setZ(6,l[0][0].z),E.setX(4,l[0][0].x),E.setX(6,l[0][0].x);for(var O=0;O<1;O++)for(var R=0;R<k;R++)E.setZ(8+0*k+R,r[0][R].z),E.setX(8+0*k+R,r[0][R].x),E.setZ(8+1*k+R,l[0][R].z),E.setX(8+1*k+R,l[0][R].x),E.setZ(8+2*k+R,r[0][R].z),E.setX(8+2*k+R,r[0][R].x),E.setZ(8+3*k+R,l[0][R].z),E.setX(8+3*k+R,l[0][R].x),E.setZ(8+4*k+R,r[0][R].z),E.setX(8+4*k+R,r[0][R].x),E.setZ(8+5*k+R,r[0][R].z),E.setX(8+5*k+R,r[0][R].x),T.setX(8+4*k+R,d[R]/c),T.setX(8+5*k+R,d[R]/c),E.setZ(8+6*k+R,l[0][i-R].z),E.setX(8+6*k+R,l[0][i-R].x),E.setZ(8+7*k+R,l[0][i-R].z),E.setX(8+7*k+R,l[0][i-R].x),T.setX(8+6*k+R,1-d[i-R]/c),T.setX(8+7*k+R,1-d[i-R]/c);C.computeBoundingBox(),this.element.scale.x=1*n/c,C.computeBoundingSphere(),E.needsUpdate=!0,T.needsUpdate=!0,C.computeVertexNormals()}else{var L=C.vertices,I=i-1,N=8;L[0].z=L[2].z=r[0][i].z,L[0].x=L[2].x=r[0][i].x,L[1].z=L[3].z=l[0][i].z,L[1].x=L[3].x=l[0][i].x,L[5].z=L[7].z=r[0][0].z,L[5].x=L[7].x=r[0][0].x,L[4].z=L[6].z=l[0][0].z,L[4].x=L[6].x=l[0][0].x;for(var _=0;_<1;_++)for(var A=1;A<i;A++)L[N].z=L[N+3*I].z=l[0][A].z,L[N].x=L[N+3*I].x=l[0][A].x,L[N+I].z=L[N+2*I].z=r[0][A].z,L[N+I].x=L[N+2*I].x=r[0][A].x,N++;for(var M=C.faceVertexUvs[0],D=C.faces,F=0,z=0;z<M.length;z++)if(D[z].materialIndex===er.MATERIAL_FACE.BACK){var B=d[F]/c;z%2==0?(M[z][0].x=M[z][1].x=M[z+1][0].x=B,F++):M[z-1][2].x=M[z][1].x=M[z][2].x=B}else if(D[z].materialIndex===er.MATERIAL_FACE.FRONT){var U=1-d[F]/c;z%2==0?(M[z][0].x=M[z][1].x=M[z+1][0].x=U,F--):M[z-1][2].x=M[z][1].x=M[z][2].x=U}C.computeBoundingBox(),this.element.scale.x=1*n/c,C.computeBoundingSphere(),C.verticesNeedUpdate=!0,C.computeFaceNormals(),C.computeVertexNormals(),C.uvsNeedUpdate=!0,C.normalsNeedUpdate=!0}o.forEach(function(e){}),s.forEach(function(e){}),l.forEach(function(e){}),r.forEach(function(e){})}}},{key:"flip",value:function(e,t){var i=this,n=i.viewer.isBooklet;!0===i.isCover&&(0===e&&(e=2.5*i.viewer.flexibility),180===e&&(e-=2.5*i.viewer.flexibility));var a=t-e,o=e>90,s=i.viewer.isRTL,r=o?i.backPage.pageNumber:i.frontPage.pageNumber,l=this.viewer.getViewPort(r);l&&(l=em.contain(l.width,l.height,i.viewer.availablePageWidth(),i.viewer.availablePageHeight()));var h=-(i.viewer.has3DCover&&i.viewer.isClosedPage()?i.viewer.coverExtraWidth:0),u=-(i.viewer.has3DCover&&i.viewer.isClosedPage()?i.viewer.coverExtraHeight:0);i.init={angle:e,height:o?i.viewer.rightSheetHeight:i.viewer.leftSheetHeight,width:o?i.viewer.rightSheetWidth:i.viewer.leftSheetWidth,index:o&&!s||!o&&s?1:0,_index:0},i.first={angle:e+a/4,index:o&&!s||!o&&s?1:.25},i.mid={angle:e+2*a/4,index:.5},i.mid2={angle:e+3*a/4,index:o&&!s||!o&&s?.25:1},i.end={angle:t,index:o&&!s||!o&&s?0:1,height:u+(l?l.height:i.height),width:h+(l?l.width:i.width)},i.isFlipping=!0;var p=function(e){i.sheetAngle=e.angle,i.curveAngle=i.isHard?e.angle:em.getCurveAngle(o,e.angle),!0===i.isHard?(i.flexibility=0,i.isCover&&i.viewer.flipCover(i)):i.flexibility=e.angle<90?i.leftFlexibility:i.rightFlexibility,i.element.position.z=(e.angle<90?i.leftPos:i.rightPos)+i.depth,n&&(i.element.material[5].opacity=i.element.material[4].opacity=e.index,i.element.castShadow=e.index>.5),i.height=e.height,i.width=e.width,i.updateAngle(!0)};n&&(!o&&!s||o&&s)&&(i.element.material[5].opacity=i.element.material[4].opacity=0,i.element.castShadow=!1),i.currentTween=new TWEEN.Tween(i.init).to({angle:[i.first.angle,i.mid.angle,i.mid2.angle,i.end.angle],index:[i.first.index,i.mid.index,i.mid2.index,i.end.index],_index:1,height:i.end.height,width:i.end.width},i.viewer.app.options.duration*Math.abs(a)/180).onUpdate(function(e){p(this,e)}).easing(TWEEN.Easing.Sinusoidal.Out).onStop(function(){i.currentTween=null,i.isFlipping=!1,i.isCover&&(i.viewer.leftCover.isFlipping=!1,i.viewer.rightCover.isFlipping=!1),i.element.material[5].opacity=i.element.material[4].opacity=1}).onComplete(function(){i.updateAngle(),i.element.material[5].opacity=i.element.material[4].opacity=1,i.element.castShadow=!0,i.isFlipping=!1,i.isCover&&(i.viewer.leftCover.isFlipping=!1,i.viewer.rightCover.isFlipping=!1),i.side=i.targetSide,i.viewer.onFlip(),i.viewer.afterFlip(),i.currentTween=null,i.viewer&&i.viewer.requestRefresh&&i.viewer.requestRefresh()}).start(),i.currentTween.update(window.performance.now())}}]),i}(U),eb=/*#__PURE__*/function(e){ef(i,e);var t=ev(i);function i(e,n){var a,o,s,r,l;return eh(this,i),e.viewerClass="df-flipbook-3d",(a=t.call(this,e,n)).pageOffset=5,a.spiralCount=20,a.groundDistance=null!==(o=e.groundDistance)&&void 0!==o?o:2,a.hasSpiral="true"===e.hasSpiral||!0===e.hasSpiral,a.flexibility=em.limitAt(null!==(s=e.flexibility)&&void 0!==s?s:.9,0,10),a.hasSpiral&&(a.flexibility=0),0===a.flexibility&&(e.sheetSegments=8),a.drag3D=em.isTrue(e.drag3D),a.texturePowerOfTwo=!em.isMobile&&(null===(r=e.texturePowerOfTwo)||void 0===r||r),a.color3DSheets=null!==(l=a.app.options.color3DSheets)&&void 0!==l?l:"white",a.midPosition=0,a.initMOCKUP(function(){n._viewerPrepared()}),a}return ep(i,[{key:"initMOCKUP",value:function(e){var t=this.app;"undefined"==typeof THREE?(t.updateInfo(t.options.text.loading+" WEBGL 3D ..."),"function"==typeof window.define&&window.define.amd&&window.requirejs?(window.requirejs.config({paths:{three:t.options.threejsSrc.replace(".js","")},shim:{three:{exports:"THREE"}}}),window.require(["three"],function(t){return window.THREE=t,er.init(),"function"==typeof e&&e(),t})):"function"==typeof window.define&&window.define.amd?window.require(["three",t.options.threejsSrc.replace(".js","")],function(t){t(function(){er.init(),"function"==typeof e&&e()})}):em.getScript(t.options.threejsSrc+"?ver="+n.version,function(){er.init(),"function"==typeof e&&e()},function(){t.updateInfo("Unable to load THREE.js...")})):(er.init(),"function"==typeof e&&e())}},{key:"init",value:function(){var e=this.app;ec(ed(i.prototype),"init",this).call(this),e.provider.defaultPage.pageRatio,this.pageScaleX=1,this.initDepth(),this.initStage(),this.initPages(),this.initEvents(),this.render()}},{key:"updatePageMode",value:function(){ec(ed(i.prototype),"updatePageMode",this).call(this);var e=this.app;this.has3DCover=e.options.cover3DType!==n.FLIPBOOK_COVER_TYPE.NONE&&e.pageCount>7&&!this.isBooklet,this.has3DCover&&"none"===e.options.flipbookHardPages&&(e.options.flipbookHardPages="cover")}},{key:"initDepth",value:function(){var e,t;this.sheetDepth=this.pageScaleX*(null!==(e=this.app.options.sheetDepth)&&void 0!==e?e:.5),this.sheetSegments=null!==(t=this.app.options.sheetSegments)&&void 0!==t?t:20,this.coverDepth=2*this.sheetDepth,this.sheetsDepth=Math.min(10,this.app.pageCount/4)*this.sheetDepth}},{key:"initStage",value:function(){var e=this.stage=new er.Stage({pixelRatio:this.app.options.pixelRatio});(e.canvas=jQuery(e.renderer.domElement).addClass("df-3dcanvas")).appendTo(this.element),e.camera.position.set(0,0,600),e.camera.lookAt(new THREE.Vector3(0,0,0)),this.camera=e.camera,e.spotLight.position.set(-220,220,550),e.spotLight.castShadow=!em.isMobile&&this.app.options.has3DShadow,e.spotLight.shadow&&(e.spotLight.shadow.bias=-.005),e.ambientLight.color=new THREE.Color("#fff"),e.ambientLight.intensity=.82;var t=new THREE.ShadowMaterial;t.opacity=this.app.options.shadowOpacity,e.ground.oldMaterial=e.ground.material,e.ground.material=t,e.ground.position.z=this.has3DCover?-6:-4,e.selectiveRendering=!0;var i=e.cssRenderer=new THREE.CSS3DRenderer;jQuery(i.domElement).css({position:"absolute",top:0,pointerEvents:"none"}).addClass("df-3dcanvas df-csscanvas"),this.element[0].appendChild(i.domElement),e.cssScene=new THREE.Scene,this.wrapper.remove(),this.wrapper=new THREE.Group,this.stage.add(this.wrapper),this.wrapper.add(e.ground),this.bookWrapper=new THREE.Group,this.bookWrapper.name="bookwrapper",this.wrapper.add(this.bookWrapper),this.bookHelper=e.bookHelper=new THREE.BoxHelper(this.bookWrapper,16776960),e.add(this.bookHelper),this.bookHelper.visible=!1,this.cameraWrapper=new THREE.Group,this.cameraWrapper.add(e.camera),e.add(this.cameraWrapper),this.app.renderRequestStatus=n.REQUEST_STATUS.ON}},{key:"initPages",value:function(){for(var e={parent3D:this.bookWrapper,viewer:this,segments:this.sheetSegments,depth:this.sheetDepth,flexibility:this.flexibility},t=0;t<this.stackCount;t++){var i=new ey(e);i.index=t,i.viewer=this,this.sheets.push(i),i.setMatColor(this.color3DSheets),this.pages.push(i.frontPage),this.pages.push(i.backPage),this.stage.cssScene.add(i.frontPage.cssPage),this.stage.cssScene.add(i.backPage.cssPage)}e.depth=this.sheetsDepth,e.segments=1,e.flexibility=0,this.leftSheets=new ey(e),this.rightSheets=new ey(e),this.leftSheets.setMatColor(this.color3DSheets),this.rightSheets.setMatColor(this.color3DSheets),e.depth=this.coverDepth,this.leftCover=new ey(e),this.rightCover=new ey(e),this.leftCover.isHard=!0,this.rightCover.isHard=!0,this.set3DCoverNormal(),this.setcolor3DCover(this.app.options.color3DCover),this.stage.cssScene.add(this.leftCover.frontPage.cssPage),this.stage.cssScene.add(this.rightCover.backPage.cssPage),this.zoomViewer.leftPage.element.css({backgroundColor:this.color3DSheets}),this.zoomViewer.rightPage.element.css({backgroundColor:this.color3DSheets}),"vertical"===this.orientation&&this.bookWrapper.children.forEach(function(e){e.rotateZ(THREE.MathUtils.degToRad(-90)),e.textureCenter=new THREE.Vector2(.5,.5),e.textureRotation=90}),this.initSpiral()}},{key:"initSpiral",value:function(){this.hasSpiral=!1}},{key:"set3DCoverNormal",value:function(){}},{key:"setcolor3DCover",value:function(){arguments.length>0&&void 0!==arguments[0]&&arguments[0]}},{key:"initEvents",value:function(){this.stageDOM=this.element[0],ec(ed(i.prototype),"initEvents",this).call(this)}},{key:"dispose",value:function(){ec(ed(i.prototype),"dispose",this).call(this),this.stage&&(this.stage.clearChild(),this.stage.cssRenderer.domElement.parentNode.removeChild(this.stage.cssRenderer.domElement),this.stage.cssRenderer=null,this.stage.orbitControl=em.disposeObject(this.stage.orbitControl),this.stage.renderer=em.disposeObject(this.stage.renderer),jQuery(this.stage.canvas).remove(),this.stage.canvas=null,this.stage=em.disposeObject(this.stage)),this.centerTween&&this.centerTween.stop&&this.centerTween.stop()}},{key:"render",value:function(){this.stage.render(),this.stage.cssRenderer.render(this.stage.cssScene,this.stage.camera)}},{key:"resize",value:function(){ec(ed(i.prototype),"resize",this).call(this);var e=this,t=e.app,n=e.stage,a=t.dimensions;a.padding,e.isSingle;var o=this.availablePageWidth(),s=this.availablePageHeight();n.resizeCanvas(a.stage.width,a.stage.height),n.cssRenderer.setSize(a.stage.width,a.stage.height),this.pageScaleX=Math.max(Math.max(o,s)/400,1),this.initDepth(),this.sheets.forEach(function(t){t.depth=e.sheetDepth}),t.refreshRequestStart();var r=this.refSize=Math.min(s,o);this.coverExtraWidth=("vertical"==e.orientation?2:1)*r*.025,this.coverExtraHeight=("vertical"==e.orientation?1:2)*r*.025,!0!==this.has3DCover&&(this.coverExtraWidth=0,this.coverExtraHeight=0),e.zoomViewer.resize(),e.cameraPositionDirty=!0,e.centerNeedsUpdate=!0,e.checkCenter(!0),e.pagesReady(),this.pageOffset=(this.hasSpiral?6:0)*Math.min(this._defaultPageSize.width,this._defaultPageSize.height)/1e3}},{key:"fitCameraToCenteredObject",value:function(e,t,i,n){var a=new THREE.Box3;a.setFromObject(t),new THREE.Vector3;var o=new THREE.Vector3;a.getSize(o);var s=this.coverExtraHeight,r=2*this.coverExtraWidth;this.isClosedPage()&&(r=0,s=0),o.x=o.x-r+this.app.dimensions.padding.width,o.y=o.y-s+this.app.dimensions.padding.height;var l=e.fov*(Math.PI/180),h=2*Math.atan(Math.tan(l/2)*e.aspect),u=Math.max(o.z/2+Math.abs(o.x/2/Math.tan(h/2)),o.z/2+Math.abs(o.y/2/Math.tan(l/2)));void 0!==i&&0!==i&&(u*=i),e.position.set(0,0,u);var p=a.min.z,c=p<0?-p+u:u-p;e.far=3*c,e.updateProjectionMatrix(),void 0!==n&&(n.target=new THREE.Vector3(0,0,0),n.maxDistance=2*c)}},{key:"updateShadowSize",value:function(){}},{key:"refresh",value:function(){var e=this.app,t=this.getBasePage();this.refreshRequested=!0;var n=1/e.pageCount*t,a=this.isRTL?1-n:n,o=Math.min(this.stackCount,this.totalSheets),s=em.limitAt(this.totalSheets,this.stackCount,2*this.stackCount),r=this.isBooklet?0:this.flexibility/s;this.leftFlexibility=r*(1-a),this.rightFlexibility=r*a,this.midPosition=.5*o*this.sheetDepth,ec(ed(i.prototype),"refresh",this).call(this);var l=!0===this.has3DCover;this.leftCover.element.visible=this.rightCover.element.visible=this.leftSheets.element.visible=this.rightSheets.element.visible=l,this.wrapper.position.z=-this.midPosition;var h=0,u=0,p=this.isRTL,c=this.isFirstPage(),d=this.isLastPage(),f=this.isLeftClosed=this.isClosedPage()&&(p&&d||!p&&c),g=this.isRightClosed=this.isClosedPage()&&(!p&&d||p&&c);if(l){this.leftSheets.depth=p?this.sheetsDepth*(1-this.getBasePage()/e.pageCount):this.sheetsDepth*t/e.pageCount,this.leftSheets.element.visible=p?e.pageCount-this.getBasePage()>2:t>2,h-=this.leftSheets.depth/2,this.leftSheets.element.position.z=h,h-=this.coverDepth+(this.leftSheets.element.visible?this.leftSheets.depth/2:0)+3*this.coverDepth,this.leftCover.depth=this.rightCover.depth=this.coverDepth;var v=Math.max(this.leftSheetHeight,this.rightSheetHeight);g&&(v=this.leftSheetHeight),f&&(v=this.rightSheetHeight),!0!==this.leftCover.isFlipping&&(this.leftCover.element.position.z=f?this.midPosition+this.coverDepth:h+this.coverDepth/2,this.leftCover.element.position.z=Math.max(this.leftCover.element.position.z,-(.05*this.refSize)),this.leftCover.element.position.x=0,this.leftSheets.sheetAngle=this.leftCover.sheetAngle=f?180:0,this.leftSheets.curveAngle=this.leftCover.curveAngle=f?180:0,!0===this.rightCover.isFlipping||(this.leftCover.height=v,this.leftCover.width=this.leftCover.sheetAngle<90?this.leftSheetWidth:this.rightSheetWidth,this.isClosedPage()||(this.leftCover.width+=this.coverExtraWidth,this.leftCover.height+=this.coverExtraHeight)),this.leftSheets.updateAngle(),this.leftCover.updateAngle()),this.rightSheets.depth=this.sheetsDepth-this.leftSheets.depth,this.rightSheets.element.visible=p?t>2:e.pageCount-this.getBasePage()>2,u-=this.rightSheets.depth/2,this.rightSheets.element.position.z=u,u-=this.coverDepth+(this.rightSheets.element.visible?this.rightSheets.depth/2:0)+3*this.coverDepth,!0!==this.rightCover.isFlipping&&(this.rightCover.element.position.z=g?this.midPosition+this.coverDepth:u+this.coverDepth/2,this.rightCover.element.position.z=Math.max(this.rightCover.element.position.z,-(.05*this.refSize)),this.rightCover.element.position.x=0,this.rightSheets.sheetAngle=this.rightCover.sheetAngle=g?0:180,this.rightSheets.curveAngle=this.rightCover.curveAngle=g?0:180,!0===this.leftCover.isFlipping||(this.rightCover.height=v,this.rightCover.width=this.rightCover.sheetAngle<90?this.leftSheetWidth:this.rightSheetWidth,this.isClosedPage()||(this.rightCover.width+=this.coverExtraWidth,this.rightCover.height+=this.coverExtraHeight)),this.rightSheets.updateAngle(),this.rightCover.updateAngle()),this.updateSheets(),this.stage.ground.position.z=Math.min(h,u)-this.refSize*this.groundDistance/100,this.stage.ground.position.z=Math.max(this.stage.ground.position.z,-(.1*this.refSize))}else this.stage.ground.position.z=-this.midPosition-15*this.sheetDepth;!0===this.cameraPositionDirty&&this.updateCameraPosition(),this.refreshSpiral()}},{key:"refreshSpiral",value:function(){}},{key:"updateCameraPosition",value:function(){var e=this.app,t=this.stage,i=e.dimensions,a=i.padding,o=1/(2*Math.tan(Math.PI*t.camera.fov*.5/180)/(i.stage.height/e.zoomValue))+2.2;this.updateShadowSize(),this.stage.spotLight.position.x=-(330*this.pageScaleX),this.stage.spotLight.position.y=330*this.pageScaleX,this.stage.spotLight.position.z=550*this.pageScaleX,this.stage.spotLight.shadow.camera.far=1200*this.pageScaleX,this.stage.spotLight.shadow.camera.updateProjectionMatrix();var s=(a.top-a.bottom)/e.zoomValue/2,r=-(a.left-a.right)/e.zoomValue/2;t.camera.position.z!==o&&!0===e.pendingZoom&&(t.camera.position.z=o),1===e.zoomValue&&(this.bookWrapper.rotation.set(0,0,0),this.bookHelper.rotation.set(0,0,0),this.cameraWrapper.rotation.set(0,0,0),0!==e.options.flipbook3DTiltAngleUp||0!==e.options.flipbook3DTiltAngleLeft?(t.camera.aspect=i.stage.width/i.stage.height,t.camera.updateProjectionMatrix(),this.bookWrapper.rotateZ(THREE.Math.degToRad(-e.options.flipbook3DTiltAngleLeft)),this.bookWrapper.rotateX(THREE.Math.degToRad(-e.options.flipbook3DTiltAngleUp)),"vertical"==this.orientation?this.bookWrapper.scale.y=1/(this.isSingle?2:1):this.bookWrapper.scale.x=1/(this.isSingle?2:1),this.bookHelper.update(),this.fitCameraToCenteredObject(t.camera,this.bookWrapper),this.bookWrapper.rotation.set(0,0,0),this.bookWrapper.scale.x=1,this.bookWrapper.scale.y=1,t.camera.position.set(r,s,t.camera.position.z+t.ground.position.z),this.camera.aspect=i.stage.width/i.stage.height,this.camera.updateProjectionMatrix(),this.cameraWrapper.rotateX(THREE.Math.degToRad(e.options.flipbook3DTiltAngleUp)),this.cameraWrapper.rotateZ(THREE.Math.degToRad(e.options.flipbook3DTiltAngleLeft))):t.camera.position.set(r,s,o)),t.camera.updateProjectionMatrix(),this.app.renderRequestStatus=n.REQUEST_STATUS.ON,this.cameraPositionDirty=!1}},{key:"refreshSheet",value:function(e){var t,i=e.sheet,a=e.index,o=i.sheetAngle,s=!(i.isHard||0===this.flexibility);i.leftFlexibility=s?this.leftFlexibility:0,i.rightFlexibility=s?this.rightFlexibility:0,i.leftPos=this.midPosition+(a-e.midPoint+1)*this.sheetDepth-this.sheetDepth/2,i.rightPos=this.midPosition-(a-e.midPoint)*this.sheetDepth-this.sheetDepth/2,t=i.targetSide===n.TURN_DIRECTION.LEFT?0:180,!1===i.isFlipping&&(e.needsFlip?(i.isFlipping=!0,i.isCover&&0===e.sheetNumber&&(this.isRTL?this.rightCover.isFlipping=!0:this.leftCover.isFlipping=!0),i.isCover&&this.totalSheets-e.sheetNumber==1&&(this.isRTL?this.leftCover.isFlipping=!0:this.rightCover.isFlipping=!0),i.element.position.z=Math.max(o<90?i.leftPos:i.rightPos,this.midPosition)+this.sheetDepth,i.flexibility=o<90?i.leftFlexibility:i.rightFlexibility,i.flip(o,t)):(i.skipFlip=!1,i.sheetAngle=i.curveAngle=t,i.flexibility=t<90?i.leftFlexibility:i.rightFlexibility,i.element.position.z=t<90?i.leftPos:i.rightPos,i.side=i.targetSide,i.height=t<90?this.leftSheetHeight:this.rightSheetHeight,i.width=t<90?this.leftSheetWidth:this.rightSheetWidth),i.updateAngle(),this.app.renderRequestStatus=n.REQUEST_STATUS.ON),i.element.visible=e.visible}},{key:"updateCenter",value:function(){var e=this,t=this.app,i="vertical"==this.orientation?e.wrapper.position.y:e.wrapper.position.x,a=("vertical"===this.orientation?-1:1)*e.centerShift*(this.isLeftPage()?"vertical"==this.orientation?this.leftSheetHeight:this.leftSheetWidth:"vertical"==this.orientation?this.rightSheetHeight:this.rightSheetWidth)/2;e.seamPosition=(-t.dimensions.offset.width+t.dimensions.containerWidth)/2+a,a!==e.centerEnd&&(e.centerTween&&e.centerTween.stop&&e.centerTween.stop(),e.onCenterStartAnimation(this),e.centerTween=new TWEEN.Tween({x:i}).delay(0).to({x:a},1===t.zoomValue&&!0!==e.skipCenterAnimation?e.app.options.duration:1).onStart(function(){}).onUpdate(function(){e.onCenterUpdateAnimation(this)}).onComplete(function(){e.onCenterCompleteAnimation(this)}).onStop(function(){e.onCenterStopAnimation(this)}).easing(TWEEN.Easing.Cubic.InOut).start(),this.updatePendingStatusClass(),e.skipCenterAnimation=!1,e.centerEnd=a),e.renderRequestStatus=n.REQUEST_STATUS.ON,this.zoomViewer.updateCenter()}},{key:"onCenterUpdateAnimation",value:function(e){"vertical"==this.orientation?(this.wrapper.position.y=e.x,this.stage&&this.stage.cssScene&&(this.stage.cssScene.position.y=e.x)):(this.wrapper.position.x=e.x,this.stage&&this.stage.cssScene&&(this.stage.cssScene.position.x=e.x))}},{key:"onCenterStartAnimation",value:function(e){}},{key:"onCenterStopAnimation",value:function(e){}},{key:"onCenterCompleteAnimation",value:function(e){}},{key:"flipCover",value:function(e){var t,i,n=null;0===e.pageNumber||this.isBooklet&&1===e.pageNumber?(n=this.isRTL?this.rightCover:this.leftCover,t=this.isRTL?1:-1):e.pageNumber===this.totalSheets-1&&(n=this.isRTL?this.leftCover:this.rightCover,t=this.isRTL?-1:1),null!==n&&(i=n.depth+e.depth+1,n.sheetAngle=e.sheetAngle,n.curveAngle=e.curveAngle,this.rightCover.height=this.leftCover.height=e.height+this.coverExtraHeight,this.rightCover.width=this.leftCover.width=e.width+this.coverExtraWidth,n.flexibility=e.flexibility,this.rightCover.updateAngle(),this.leftCover.updateAngle(),n.element.position.x=e.element.position.x+t*Math.sin(e.sheetAngle*Math.PI/180)*i,n.element.position.z=e.element.position.z+t*Math.cos(e.sheetAngle*Math.PI/180)*i)}},{key:"pagesReady",value:function(){if(!this.isAnimating()&&!0===this.refreshRequested){if(!1===this.app.options.flipbookFitPages){var e=this.app.viewer.getBasePage(),t=this.leftViewport=this.getViewPort(e+(this.isBooklet?0:this.isRTL?1:0)),i=this.rightViewPort=this.getViewPort(e+(this.isBooklet?0:this.isRTL?0:1));if(t){var a=em.contain(t.width,t.height,this.availablePageWidth(),this.availablePageHeight());(this.leftSheetWidth!=Math.floor(a.width)||this.leftSheetHeight!=Math.floor(a.height))&&(this.cameraPositionDirty=!0),this.leftSheetWidth=Math.floor(a.width),this.leftSheetHeight=Math.floor(a.height)}if(i){var o=em.contain(i.width,i.height,this.availablePageWidth(),this.availablePageHeight());(this.rightSheetWidth!=Math.floor(o.width)||this.rightSheetWidth!=Math.floor(o.height))&&(this.cameraPositionDirty=!0),this.rightSheetWidth=Math.floor(o.width),this.rightSheetHeight=Math.floor(o.height)}for(var s=0;s<this.sheets.length;s++){var r=this.sheets[s];r.side===n.TURN_DIRECTION.LEFT?(r.height=this.leftSheetHeight,r.width=this.leftSheetWidth):(r.height=this.rightSheetHeight,r.width=this.rightSheetWidth),r.updateAngle()}if(this.isClosedPage()){var l=this.isRTL&&this.isLastPage()||!this.isRTL&&this.isFirstPage();this.leftCover.width=this.rightCover.width=l?this.rightSheetWidth:this.leftSheetWidth,this.leftCover.height=this.rightCover.height=l?this.rightSheetHeight:this.leftSheetHeight}else this.leftCover.height=this.rightCover.height=this.coverExtraHeight+Math.max(this.leftSheetHeight,this.rightSheetHeight),this.leftCover.width=this.coverExtraWidth+this.leftSheetWidth,this.rightCover.width=this.coverExtraWidth+this.rightSheetWidth;this.leftSheets.width=this.leftSheetWidth,this.leftSheets.height=this.leftSheetHeight,this.rightSheets.height=this.rightSheetHeight,this.rightSheets.width=this.rightSheetWidth,this.leftCover.updateAngle(),this.leftSheets.updateAngle(),this.rightCover.updateAngle(),this.rightSheets.updateAngle(),this.updateSheets(!0)}this.updateCenter(),this.updateCSSLayer(),this.updatePendingStatusClass(),this.refreshSpiral(),!0===this.cameraPositionDirty&&this.updateCameraPosition()}}},{key:"updateSheets",value:function(e){if(!0!==this.isClosedPage()){var t=this.getPageByNumber(this.getRightPageNumber());if(!0!==this.rightCover.isFlipping&&t&&t.sheet.element.geometry.attributes){var i=this.rightSheets.element.geometry.attributes.position,n=e?t.sheet.element.geometry.boundingBox.max.x*t.sheet.element.scale.x:this.rightSheets.lastSlopeX;i.setX(21,n),i.setX(23,n),i.setX(4,n),i.setX(6,n),i.setX(10,n),i.setX(14,n),i.needsUpdate=!0,this.rightSheets.element.geometry.attributes.uv.needsUpdate=!0,this.rightSheets.element.geometry.computeVertexNormals(),e&&(this.rightSheets.lastSlopeX=n)}var a=this.getPageByNumber(this.getLeftPageNumber());if(!0!==this.leftCover.isFlipping&&a&&a.sheet.element.geometry.attributes){var o=this.leftSheets.element.geometry.attributes.position,s=e?a.sheet.element.geometry.boundingBox.min.x*a.sheet.element.scale.x:this.leftSheets.lastSlopeX;o.setX(16,s),o.setX(18,s),o.setX(5,s),o.setX(7,s),o.setX(8,s),o.setX(12,s),o.needsUpdate=!0,this.leftSheets.element.geometry.attributes.uv.needsUpdate=!0,this.leftSheets.element.geometry.computeVertexNormals(),e&&(this.leftSheets.lastSlopeX=s)}}}},{key:"updateCSSLayer",value:function(){}},{key:"mouseMove",value:function(e){if(e=em.fixMouseEvent(e),this.app.renderRequestStatus=n.REQUEST_STATUS.ON,null!=e.touches&&2===e.touches.length){this.pinchMove(e);return}var t=this.eventToPoint(e);if(null!==this.dragSheet&&!1!==this.drag3D&&Math.abs(t.x-this.startPoint.x)>2){!0!==this.isDragging&&(this.updatePendingStatusClass(!0),this.isDragging=!0);var i=this.dragSheet.width,a=t.x-(this.app.dimensions.origin.x+this.centerEnd-i),o=em.limitAt(1-a/i,-1,1),s=em.toDeg(Math.acos(o)),r=this.dragSheet,l=this.drag===n.TURN_DIRECTION.LEFT;r.sheetAngle=s;var h=em.getCurveAngle(l,s,45);r.isCover&&r.viewer.flipCover(r),r.curveAngle=r.isHard?s:h,r.updateAngle()}this.checkSwipe(t,e)}},{key:"mouseUp",value:function(e){if((e=em.fixMouseEvent(e)).touches||0===e.button){if(null==this.dragSheet&&null!=e.touches&&0===e.touches.length){this.pinchUp(e);return}var t=this.eventToPoint(e);if(1===this.app.zoomValue){if(null!==this.dragSheet){var i=t.x-this.startPoint.x;Math.abs(i)>2*this.swipeThreshold&&(this.drag===n.TURN_DIRECTION.LEFT&&i>0?this.app.openLeft():this.drag===n.TURN_DIRECTION.RIGHT&&i<0&&this.app.openRight()),this.requestRefresh(),this.updatePendingStatusClass()}var a=e.target||e.originalTarget,o=this.startPoint&&t.x===this.startPoint.x&&t.y===this.startPoint.y&&"A"!==a.nodeName;!0===e.ctrlKey&&o?this.zoomOnPoint(t):o&&t.sheet&&this.clickAction===n.MOUSE_CLICK_ACTIONS.NAV&&(t.sheet.sheetAngle>90?this.app.openRight():this.app.openLeft())}this.dragSheet=null,this.drag=null,!0===this.isDragging&&(this.isDragging=!1),this.startPoint=null,this.canSwipe=!1,this.app.renderRequestStatus=n.REQUEST_STATUS.ON}}},{key:"raycastCLick",value:function(e){this.mouse=new THREE.Vector2,this.raycaster=new THREE.Raycaster,this.mouse.x=e.offsetX/this.app.dimensions.stage.width*2-1,this.mouse.y=1-e.offsetY/this.app.dimensions.stage.height*2,this.raycaster.setFromCamera(this.mouse,this.camera);var t=this.raycaster.intersectObjects(this.bookWrapper.children,!0);if(t.length>0){var i,n=0;do{if((i=null!=t[n]?t[n].object:null).sheet&&i.sheet.index&&!0!==i.sheet.isFlipping)return i;n++}while(n<t.length)}}},{key:"mouseDown",value:function(e){if((e=em.fixMouseEvent(e)).touches||0===e.button){if(null!=e.touches&&2===e.touches.length)this.pinchDown(e);else{e=em.fixMouseEvent(e);var t=this.eventToPoint(e);this.startPoint=t,this.lastPosX=t.x,this.lastPosY=t.y;var i=this.raycastCLick(e),a=t.sheet?t.sheet.width-Math.abs(t.x-(this.app.dimensions.origin.x+this.centerEnd)):0;t.sheet&&i&&t.isInsideSheet&&a<t.sheet.width/2?(this.dragSheet=i.sheet,this.drag=t.sheet.sheetAngle<90?n.TURN_DIRECTION.LEFT:n.TURN_DIRECTION.RIGHT):this.canSwipe=!0}}}},{key:"eventToPoint",value:function(e){var t=this.app.dimensions,i={x:(e=em.fixMouseEvent(e)).clientX,y:e.clientY};i.x=i.x-this.parentElement[0].getBoundingClientRect().left,i.y=i.y-this.parentElement[0].getBoundingClientRect().top;var n=(-t.offset.width+t.containerWidth)/2-t.stage.width/2,a=(-t.offset.width+t.containerWidth)/2+t.stage.width/2,o=t.padding.top,s=t.padding.top+this.availablePageHeight(),r=i.x<this.seamPosition,l=this.getBasePage()+(r?0:1),h=this.getPageByNumber(l);h&&(h=h.sheet);var u=i.x>n&&i.x<a&&i.y>o&&i.y<s;return{isInsideSheet:u,isInsideDragZone:u&&i.x-n<this.foldSense||a-i.x<this.foldSense,x:i.x,y:i.y,left:n,top:o,right:a,bottom:s,raw:i,isLeftSheet:r,sheet:h}}},{key:"checkPageLoading",value:function(){for(var e=!0,t=this.getVisiblePages().main,i=0;i<(this.isBooklet?1:2);i++){var n=this.getPageByNumber(t[i]);n&&(e=n.textureLoaded&&e)}this.element.toggleClass("df-loading",!e)}},{key:"textureLoadedCallback",value:function(e){this.app.renderRequestStart(),this.pagesReady()}},{key:"getTextureSize",value:function(e){var t=ec(ed(i.prototype),"getTextureSize",this).call(this,e);if(1!==this.app.zoomValue||!0===e.isAnnotation)return t;var n=em.nearestPowerOfTwo(t.height),a=t.width*n/t.height;return this.texturePowerOfTwo?{height:n,width:a}:t}},{key:"getPageByNumber",value:function(e){if(this.has3DCover){var t=!this.isBooklet&&e===this.app.pageCount&&e%2==0,n=1===e;if(!this.isRTL&&n||this.isRTL&&t)return this.leftCover.frontPage;if(!this.isRTL&&t||this.isRTL&&n)return this.rightCover.backPage}return ec(ed(i.prototype),"getPageByNumber",this).call(this,e)}},{key:"setPage",value:function(e){return ec(ed(i.prototype),"setPage",this).call(this,e)}},{key:"beforeFlip",value:function(){ec(ed(i.prototype),"beforeFlip",this).call(this)}}]),i}(z),ew=/*#__PURE__*/function(e){ef(i,e);var t=ev(i);function i(e){eh(this,i);var n,a=el(n=t.call(this,e));return a.element=null,a.face=e.face,a.parent3D=e.sheet,a.sheet=e.sheet,a.cssPage=new THREE.CSS3DObject(a.contentLayer[0]),n}return ep(i,[{key:"setLoading",value:function(){this.sheet.viewer.checkPageLoading()}},{key:"clearMap",value:function(){this.sheet.element.material[this.face].map=null,this.sheet.element.material[this.face].needsUpdate=!0}},{key:"loadTexture",value:function(e){var t=this,i=e.texture,a=e.callback;function o(i,n){t.updateTextureLoadStatus(!0),t.sheet.resetMatColor(t.face,e.texture===t.textureLoadFallback),"function"==typeof a&&a(e)}t.textureSrc=i,"function"==typeof n.defaults.beforeLoadTexture&&n.defaults.beforeLoadTexture({texture:i,page:t}),4===this.face?this.sheet.backImage(i,o):this.sheet.frontImage(i,o)}}]),i}(S);function eP(e){if(void 0===e)throw ReferenceError("this hasn't been initialised - super() hasn't been called");return e}function eS(e,t){if(!(e instanceof t))throw TypeError("Cannot call a class as a function")}function ex(e,t){for(var i=0;i<t.length;i++){var n=t[i];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function eC(e,t,i){return t&&ex(e.prototype,t),i&&ex(e,i),e}function eE(e){return(eE=Object.setPrototypeOf?Object.getPrototypeOf:function(e){return e.__proto__||Object.getPrototypeOf(e)})(e)}function eT(e,t){return null!=t&&"undefined"!=typeof Symbol&&t[Symbol.hasInstance]?!!t[Symbol.hasInstance](e):e instanceof t}function ek(e,t){return(ek=Object.setPrototypeOf||function(e,t){return e.__proto__=t,e})(e,t)}function eO(e){return e&&"undefined"!=typeof Symbol&&e.constructor===Symbol?"symbol":typeof e}n.defaults.maxTextureSize=2048,n.viewers={},n.viewers.flipbook=function e(t,i){return(function(e,t){if(!(e instanceof t))throw TypeError("Cannot call a class as a function")}(this,e),!1==n.utils.canSupport3D()&&(t.is3D=!1),!0===t.is3D)?new eb(t,i):new Y(t,i)},n.viewers.default=n.viewers.reader=O;var eR=n.utils,eL=/*#__PURE__*/function(){function 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i=this.externalLinkTarget,a=this.externalLinkRel,o=this.externalLinkEnabled;if(!t||"string"!=typeof t)throw Error('A valid "url" parameter must provided.');var s=(0,eR.removeNullCharacters)(t);o?e.href=e.title=s:(e.href="",e.title="Disabled: ".concat(s),e.onclick=function(){return!1});var r="";switch(i){case n.LINK_TARGET.NONE:break;case n.LINK_TARGET.SELF:r="_self";break;case n.LINK_TARGET.BLANK:r="_blank";break;case n.LINK_TARGET.PARENT:r="_parent";break;case n.LINK_TARGET.TOP:r="_top"}e.target=r,e.rel="string"==typeof a?a:"noopener noreferrer nofollow"}},{key:"goToDestination",value:function(e){var t,i="",n=this,a=function(t){eR.log("Requested: ",t);var o=eT(t,Object)?n._pagesRefCache[t.num+" "+t.gen+" R"]:t+1;o?((o=n.pdfApp.viewer.getViewerPageNumber(o))>n.pdfApp.pageCount&&(o=n.pdfApp.pageCount),eR.log("Loading for:",t," at page ",o),n.pdfApp.requestDestRefKey===t.num+" "+t.gen+" R"?(n.pdfApp.gotoPage(o),n.pdfHistory&&n.pdfHistory.push({dest:e,hash:i,page:o})):eR.log("Expired 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a&&"XYZ"===a.name){var o=e[4]||this.pdfApp.pageScaleValue,s=parseFloat(o);s&&(o=100*s),n+="&zoom="+o,(e[2]||e[3])&&(n+=","+(e[2]||0)+","+(e[3]||0))}return n}}return this.getAnchorUrl("")}},{key:"getCustomDestinationHash",value:function(e){return"#"+escape(e)}},{key:"getAnchorUrl",value:function(e){return(this.baseUrl||"")+e}},{key:"executeNamedAction",value:function(e){switch(e){case"GoBack":this.pdfHistory&&this.pdfHistory.back();break;case"GoForward":this.pdfHistory&&this.pdfHistory.forward();break;case"NextPage":this.page++;break;case"PrevPage":this.page--;break;case"LastPage":this.page=this.pagesCount;break;case"FirstPage":this.page=1}var t=document.createEvent("CustomEvent");t.initCustomEvent("namedaction",!0,!0,{action:e}),this.pdfApp.container.dispatchEvent(t)}},{key:"cachePageRef",value:function(e,t){var i=t.num+" "+t.gen+" R";this._pagesRefCache[i]=e}}]),e}(),eI=/*#__PURE__*/function(){function 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0===this.app.dimensions.pageFit&&eR.log("Provider needs to initialize page properties for the app"),this.app._documentLoaded()}},{key:"finalizeOutLine",value:function(){if(null!==this.app&&null!==this.app.options){var e=this.app.options.outline;if(e)for(var t=0;t<e.length;t++)e[t].custom=!0,this.outline.push(e[t])}}},{key:"search",value:function(){}}]),e}(),eN=/*#__PURE__*/function(e){!function(e,t){if("function"!=typeof t&&null!==t)throw TypeError("Super expression must either be null or a function");e.prototype=Object.create(t&&t.prototype,{constructor:{value:e,writable:!0,configurable:!0}}),t&&ek(e,t)}(o,e);var t,a=(t=function(){if("undefined"==typeof Reflect||!Reflect.construct||Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],function(){})),!0}catch(e){return!1}}(),function(){var e,i=eE(o);return e=t?Reflect.construct(i,arguments,eE(this).constructor):i.apply(this,arguments),e&&("object"===eO(e)||"function"==typeof e)?e:eP(this)});function o(e,t){eS(this,o);var s,r,l=function(e){h.updateInfo(h.options.text.loading+" PDF Worker ...");var t=document.createElement("a");t.href=h.options.pdfjsWorkerSrc+u.cacheBustParameters,t.hostname!==window.location.hostname&&!0===n.loadCorsPdfjsWorker?(h.updateInfo(h.options.text.loading+" PDF Worker CORS ..."),jQuery.ajax({url:h.options.pdfjsWorkerSrc+u.cacheBustParameters,cache:!0,success:function(t){h.options.pdfjsWorkerSrc=eR.createObjectURL(t,"text/javascript"),"function"==typeof e&&e()}})):"function"==typeof e&&e()},h=(s=a.call(this,e,t)).app,u=eP(s);return u.pdfDocument=void 0,u._page2Ratio=void 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eC(o,[{key:"dispose",value:function(){this.pdfDocument&&this.pdfDocument.destroy(),this.linkService=eR.disposeObject(this.linkService),this.pdfLoadProgress&&this.pdfLoadProgress.destroy(),this.pdfLoadProgress=null,this.pdfDocument=null}},{key:"loadDocument",value:function(){var e=this.app,t=this.app.options,i=this,n=t.pdfParameters||{};if(n.url=eR.httpsCorrection(n.url||t.source),n.rangeChunkSize=t.rangeChunkSize,n.cMapPacked=!0,n.disableAutoFetch=t.disableAutoFetch,n.disableStream=t.disableStream,n.disableRange=!0===t.disableRange,n.disableFontFace=t.disableFontFace,n.isEvalSupported=!1,n.cMapUrl=t.cMapUrl,n.imagesLocation=t.imagesLocation,n.imageResourcesPath=t.imageResourcesPath,!n.url&&!n.data&&!n.range){e.updateInfo("ERROR : No PDF File provided! ","df-error");return}var a=i.pdfLoadProgress=pdfjsLib.getDocument(n);a._worker.promise.then(function(t){e.updateInfo(e.options.text.loading+" PDF ...")}),a.onPassword=function(e,t){switch(t){case pdfjsLib.PasswordResponses.NEED_PASSWORD:var i=prompt("Enter the password to open the PDF file.");if(null===i)throw Error("No password givsen.");e(i);break;case pdfjsLib.PasswordResponses.INCORRECT_PASSWORD:var i=prompt("Invalid password. Please try again.");if(!i)throw Error("No password givaen.");e(i)}},a.promise.then(function(n){i.pdfDocument=n,n.getPage(1).then(function(a){i.defaultPage=a;var o,s=i.defaultPage.viewPort=a.getViewport({scale:1,rotation:a._pageInfo.rotate+e.options.pageRotation}),r=i.defaultPage.pageRatio=s.width/s.height;i.viewPorts[1]=s,e.dimensions.defaultPage={ratio:r,viewPort:s,width:s.width,height:s.height},e.dimensions.maxTextureHeight=(null!==(o=t.maxTextureSize)&&void 0!==o?o:3200)/(r>1?r:1),e.dimensions.maxTextureWidth=e.dimensions.maxTextureHeight*r,e.dimensions.autoHeightRatio=1/r,i.pageCount=n.numPages,i.numPages=n.numPages,i._page1Pass=!0,i.pagesLoaded()}),n.numPages>1&&!0===e.checkSecondPage?n.getPage(2).then(function(t){var n=t.getViewport({scale:1,rotation:t._pageInfo.rotate+e.options.pageRotation});i._page2Ratio=n.width/n.height,i.viewPorts[2]=n,i._page2Pass=!0,i.pagesLoaded()}):(i._page2Pass=!0,i.pagesLoaded())}).catch(function(t){if(null!==e&&null!=e.options){var n,a="",o=document.createElement("a");o.href=e.options.source,o.hostname===window.location.hostname||-1!==o.href.indexOf("file://")||eR.isChromeExtension()||-1!==o.href.indexOf("blob:")||(a="<strong>CROSS ORIGIN!! </strong>");var s=(null===(n=e.options)||void 0===n?void 0:n.fileName)||o.href;e.updateInfo(a+"<strong>Error: Cannot access file!  </strong>"+s+"<br><br>"+t.message,"df-error"),console.log(t),e.container.removeClass("df-loading").addClass("df-error"),i.dispose()}}),a.getTotalLength=function(){return i.pdfLoadProgress._transport._networkStream._fullRequestReader.contentLength},a.onProgress=function(t){if(null!==e){var i=100*t.loaded/a.getTotalLength();isNaN(i)?t&&t.loaded?(void 0===a.lastLoaded||a.lastLoaded+25e4<t.loaded)&&(a.lastLoaded=t.loaded,e.updateInfo(e.options.text.loading+" PDF "+(Math.ceil(t.loaded/1e4)/100).toFixed(2).toString()+"MB ...")):e.updateInfo(e.options.text.loading+" PDF ..."):e.updateInfo(e.options.text.loading+" PDF "+Math.ceil(Math.min(100,i)).toString().split(".")[0]+"% ...")}}}},{key:"pdfFetchStarted",value:function(){this.pdfFetchStatusCount=0,this.app.container.addClass("df-fetch-pdf"),this.pdfFetchStatus=n.REQUEST_STATUS.COUNT}},{key:"checkRequestQueue",value:function(){}},{key:"finalize",value:function(){var e=this.app,t=this;null!==e&&null!==e.options&&(t.linkService=new eL,t.linkService.setDocument(t.pdfDocument,null),t.linkService.setViewer(e),t.pdfDocument.getOutline().then(function(i){!0===e.options.overwritePDFOutline&&(i=[]),i=i||[],t.outline=i}).finally(function(){t._getLabels()}))}},{key:"_getLabels",value:function(){var e=this.app,t=this;t.pdfDocument.getPageLabels().then(function(i){if(i&&!0!==e.options.disablePageLabels){for(var n=i.length,a=0,o=0,s=0;s<n;s++){var r=i[s];if(r===(s+1).toString())a++;else if(""===r)o++;else break}a>=n||o>=n||(t.pageLabels=i)}}).finally(function(){t._getPermissions()})}},{key:"_getPermissions",value:function(){var e=this.app,t=this;t.pdfDocument.getPermissions().then(function(i){null!==i&&Array.isArray(i)&&(t.canPrint=i.indexOf(pdfjsLib.PermissionFlag.PRINT)>-1,!1==t.canPrint&&(console.log("PDF printing is disabled."),e.options.showPrintControl=e.options.showPrintControl&&t.canPrint))}).finally(function(){t._documentLoaded()})}},{key:"processPage",value:function(e){var t=this.app,i=this,n=e.pageNumber,a=performance.now(),o=t.viewer.getTextureSize(e);if(!0===DEARFLIP.defaults.cachePDFTexture&&void 0!==this.getCache(n,o.height)){t.applyTexture(this.getCache(n,o.height),e),eR.log("Texture loaded from cache for : "+n);return}var s=t.viewer.getDocumentPageNumber(n);eR.log("Requesting PDF Page:"+s),i.pdfDocument.getPage(s).then(function(r){i.viewPorts[n]||(e.isFreshPage=!0,i.viewPorts[n]=r.getViewport({scale:1,rotation:r._pageInfo.rotate+t.options.pageRotation}));var l,h=t.viewer.getRenderContext(r,e);e.isFreshPage&&(null===(l=t.viewer.getPageByNumber(e.pageNumber))||void 0===l||l.changeTexture(e.pageNumber,h.canvas.height)),eR.log("Page "+n+" rendering - "+h.canvas.width+"x"+h.canvas.height),e.trace=i.requestIndex++,i.requestedPages+=","+e.trace+"["+s+"|"+h.canvas.height+"]",r.cleanupAfterRender=!1,r.render(h).promise.then(function(){if(t.applyTexture(h.canvas,e),!0===DEARFLIP.defaults.cachePDFTexture&&i.setCache(e.pageNumber,h.canvas,o.height),!0===t.options.cleanupAfterRender){var l=","+e.trace+"["+s+"|"+h.canvas.height+"]";eR.log("CleanUp Requesting for ("+n+") actual "+s),i.requestedPages.indexOf(l)>-1&&(i.requestedPages=i.requestedPages.replace(l,""),-1==i.requestedPages.indexOf("["+s+"|")?(eR.log("CleanUp Passed for ("+n+") actual "+s),i.pagesToClean.push(r),i.pagesToClean.length>0&&i.cleanUpPages()):eR.log("CleanUp Cancelled waiting for ("+n+") actual "+s+" : "+i.requestedPages))}h=null,eR.log("Rendered "+n+" in "+(performance.now()-a)+" milliseconds")}).catch(function(e){console.log(e)})}).catch(function(e){console.log(e)})}},{key:"cleanUpPages",value:function(){for(;this.pagesToClean.length>0;){var e=this.pagesToClean.splice(-1)[0];eR.log("Cleanup Completed for PDF page: "+(e._pageIndex+1)),e.cleanup()}}},{key:"clearSearch",value:function(){this.searchHits=[],this.searchHitItemsCache=[],this.totalHits=0,this.app.searchResults.html(""),this.app.container.removeClass("df-search-open"),this.textSearch="",this.app.container.find(".df-search-hits").remove()}},{key:"search",value:function(e){if(this.textSearch!==e){if(this.clearSearch(),e.length<3&&""!=e){this.app.updateSearchInfo("Minimum 3 letters required.");return}this.textSearch=e,this.textSearchLength=e.length,this.app.searchContainer.addClass("df-searching"),this.app.container.addClass("df-fetch-pdf"),this._search(e,1)}}},{key:"_search",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:1,i=this;i.app.updateSearchInfo("Searching Page: "+t),i.searchPage(t).then(function(n){for(var a,o=RegExp(e,"gi"),s=[];a=o.exec(n);)s.push({index:a.index,length:i.textSearchLength});if(i.searchHits[t]=s,s.length>0){var r=i.app.viewer.searchPage(t);!0===r.include&&(i.totalHits+=s.length,i.app.searchResults.append('<div class="df-search-result '+(i.app.currentPageNumber===t?"df-active":"")+'" data-df-page="'+t+'"><span>Page '+r.label+"</span><span>"+s.length+" "+(s.length>1?"results":"result")+"</span></div>"))}i.app.viewer.isActivePage(t)&&(i.processTextContent(t,i.app.viewer.getTextElement(t,!0)),i.app.ui.update()),i._search(e,t+1)}).catch(function(){}).finally(function(){0==i.totalHits?i.app.updateSearchInfo("No results Found!"):i.app.updateSearchInfo(i.totalHits+" results found"),i.app.searchContainer.removeClass("df-searching"),i.app.container.removeClass("df-fetch-pdf")})}},{key:"prepareTextContent",value:function(e,t){var i=arguments.length>2&&void 0!==arguments[2]&&arguments[2],n=this;if(void 0==n.textContentJoinedSearch[t]||i){var a,n=this,o=0,s=0,r=0;n.textContentSearch[t]=[],n.textContent[t]=[],n.textOffsetSearch[t]=[],n.textOffset[t]=[],n.textContentJoinedSearch[t]=[],n.textContentJoined[t]=[];for(var l=0;l<e.items.length;l++)a=e.items[l],n.textContentSearch[t].push(!0===a.hasEOL?a.str+" ":a.str),n.textContent[t].push(a.str+" "),s+=r=(a.str.length||0)+(!0===a.hasEOL?1:0),n.textOffsetSearch[t].push({length:r,offset:s-r}),o+=r=(a.str.length||0)+1,n.textOffset[t].push({length:r,offset:o-r});n.textContentJoinedSearch[t]=n.textContentSearch[t].join(""),n.textContentJoined[t]=n.textContent[t].join("")}}},{key:"searchPage",value:function(e){var t=this;return new Promise(function(i,n){if(t._isValidPage(e))try{var a=t.app.viewer.getDocumentPageNumber(e);void 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i=this.linkService;if(!0===t.custom)e.href=i.getCustomDestinationHash(t.dest),e.onclick=function(){return i.customNavigateTo(t.dest),!1};else{if(t.url){pdfjsLib.addLinkAttributes(e,{url:t.url});return}e.href=i.getDestinationHash(t.dest),e.onclick=function(){return i.navigateTo(t.dest),!1}}}},{key:"_addToggleButton",value:function(e){var t=this,i=document.createElement("div");i.className=this.outlineToggleClass+" "+this.outlineToggleHiddenClass,i.onclick=(function(n){if(n.stopPropagation(),i.classList.toggle(this.outlineToggleHiddenClass),n.shiftKey){var a=!i.classList.contains(this.outlineToggleHiddenClass);t._toggleOutlineItem(e,a)}}).bind(this),e.insertBefore(i,e.firstChild)}},{key:"_toggleOutlineItem",value:function(e,t){this.lastToggleIsShow=t;for(var i=e.querySelectorAll("."+this.outlineToggleClass),n=0,a=i.length;n<a;++n)i[n].classList[t?"remove":"add"](this.outlineToggleHiddenClass)}},{key:"render",value:function(e){var t=e&&e.outline||null,i=0;if(this.outline&&this.reset(),this.outline=t,t){for(var n=document.createDocumentFragment(),a=[{parent:n,items:this.outline,custom:!1}],o=!1;a.length>0;)for(var s=a.shift(),r=s.custom,l=0,h=s.items.length;l<h;l++){var u=s.items[l],p=document.createElement("div");p.className=this.outlineItemClass;var c=document.createElement("a");if(null==u.custom&&null!=r&&(u.custom=r),this._bindLink(c,u),c.textContent=u.title.replace(/\x00/g,""),p.appendChild(c),u.items&&u.items.length>0){o=!0,this._addToggleButton(p);var d=document.createElement("div");d.className=this.outlineItemClass+"s",p.appendChild(d),a.push({parent:d,custom:u.custom,items:u.items})}s.parent.appendChild(p),i++}o&&(null!=this.container.classList?this.container.classList.add(this.outlineItemClass+"s"):null!=this.container.className&&(this.container.className+=" picWindow")),this.container.appendChild(n),this._dispatchEvent(i)}}}]),e}(),e3=/*#__PURE__*/function(){function e(t){ej(this,e);var i=function(){o.thumbRequestCount=0,o.thumbRequestStatus=eX.COUNT},n=this.itemHeight=t.itemHeight,a=this.itemWidth=t.itemWidth,o=this.app=t.app;this.items=t.items,this.generatorFn=t.generatorFn,this.totalRows=t.totalRows||t.items&&t.items.length,this.addFn=t.addFn,this.scrollFn=t.scrollFn,this.container=document.createElement("div");for(var s=this,r=0;r<this.totalRows;r++){var l=document.createElement("div"),h=r+1;l.id="df-thumb"+h;var u=document.createElement("div"),p=document.createElement("div"),c=document.createElement("div");c.className="df-wrapper",p.className="df-thumb-number",l.className="df-thumb",u.className="df-bg-image",c.style.height=n+"px",c.style.width=a+"px",p.innerText=o.provider.getLabelforPage(h),l.appendChild(c),c.appendChild(p),c.appendChild(u),this.container.appendChild(l)}s.dispose=function(){s.container&&s.container.parentNode&&s.container.parentNode.removeChild(s.container),s.container.removeEventListener("scroll",i)},s.container.addEventListener("scroll",i)}return eG(e,[{key:"processThumbRequest",value:function(){eQ.log("Thumb Request Initiated");var e=this.app;if(e.thumbRequestStatus=eX.OFF,e.activeThumb!==e.currentPageNumber&&null!=e.thumbContainer&&e.thumbContainer.hasClass("df-sidemenu-visible")){var t=e.thumblist.container,i=t.scrollTop,a=t.getBoundingClientRect().height,o=e.thumbContainer.find("#df-thumb"+e.currentPageNumber);o.length>0?(e.thumbContainer.find(".df-selected").removeClass("df-selected"),o.addClass("df-selected"),i+a<(o=o[0]).offsetTop+o.scrollHeight?eQ.scrollIntoView(o,null,!1):i>o.offsetTop&&eQ.scrollIntoView(o),e.activeThumb=e.currentPageNumber):(eK(t).scrollTop(124*e.currentPageNumber),e.thumbRequestStatus=eX.ON)}if(0===e.thumblist.container.getElementsByClassName("df-thumb-requested").length){var s=eQ.getVisibleElements({container:e.thumblist.container,elements:e.thumblist.container.children});eK.inArray(s)&&s.unshift(e.activeThumb);for(var r=0;r<s.length;r++){var l=e.thumblist.container.children[s[r]-1];if(void 0!==l&&!1===l.classList.contains("df-thumb-loaded")&&!1===l.classList.contains("df-thumb-requested"))return l.classList.add("df-thumb-requested"),eQ.log("Thumb Requested for "+s[r]),e.provider.processPage({pageNumber:s[r],textureTarget:n.TEXTURE_TARGET.THUMB}),!1}}}},{key:"setPage",value:function(e){var t=this.app,i=e.pageNumber,a=e.texture;if(e.textureTarget===n.TEXTURE_TARGET.THUMB){var o=t.container.find("#df-thumb"+i);o.find(".df-wrapper").css({height:e.height,width:e.width}),o.find(".df-bg-image").css({backgroundImage:eQ.bgImage(a)}),o.addClass("df-thumb-loaded").removeClass("df-thumb-requested")}eQ.log("Thumbnail set for "+e.pageNumber),t.thumbRequestStatus=eX.ON}}]),e}();function e5(){if(void 0===n.openLocalFileInput){var e=n.openLocalFileInput=eK('<input type="file" accept=".pdf" style="display:none">').appendTo(eK("body")).data("df-option",n.openFileOptions);e.change(function(){var t,i=e[0].files;i.length&&(t=i[0],e.val(""),n.openFile(t))})}}n.openLightBox=function(e){n.activeLightBox||(n.activeLightBox=new e$(function(){n.activeLightBox.app&&(n.activeLightBox.app.closeRequested=!0,n.activeLightBox.app.analytics({eventAction:n.activeLightBox.app.options.analyticsViewerClose,options:n.activeLightBox.app.options})),n.activeLightBox.app=eQ.disposeObject(n.activeLightBox.app)})),n.activeLightBox.duration=300,(void 0===n.activeLightBox.app||null===n.activeLightBox.app||!0===n.activeLightBox.app.closeRequested||n.openLocalFileInput==e)&&(n.activeLightBox.app=eQ.disposeObject(n.activeLightBox.app),null===n.activeLightBox.app&&n.activeLightBox.show(function(){n.activeLightBox.app=eK(n.activeLightBox.element).dearviewer({transparent:!1,isLightBox:!0,hashNavigationEnabled:!0,height:"100%",dataElement:e}),history.pushState({},null,"#"),n.activeLightBox.lightboxWrapper.toggleClass("df-lightbox-padded",!1===n.activeLightBox.app.options.popupFullsize),n.activeLightBox.lightboxWrapper.toggleClass("df-rtl",n.activeLightBox.app.options.readDirection===n.READ_DIRECTION.RTL),n.activeLightBox.backGround.css({backgroundColor:"transparent"===n.activeLightBox.app.options.backgroundColor?n.defaults.popupBackGroundColor:n.activeLightBox.app.options.backgroundColor})}))},n.checkBrowserURLforDefaults=function(){if(!eQ.isIEUnsupported){var e=new URL(location.href).searchParams.get("viewer-type")||new URL(location.href).searchParams.get("viewertype"),t=new URL(location.href).searchParams.get("is-3d")||new URL(location.href).searchParams.get("is3d");e&&(n.defaults.viewerType=e),("true"===t||"false"===t)&&(n.defaults.is3D="true"===t)}},n.checkBrowserURLforPDF=function(){var e=arguments.length>0&&void 0!==arguments[0]&&arguments[0];if(!eQ.isIEUnsupported){var t=new URL(location.href).searchParams.get("pdf-source");return t&&(t=decodeURI(t),e&&n.openURL(t)),t}},n.fileDropHandler=function(e,t){var i=e[0];"application/pdf"===i.type&&(t.preventDefault(),t.stopPropagation(),n.openFile(i))},n.openFile=function(e){if(e){var t;n.oldLocalFileObjectURL&&window.URL.revokeObjectURL(n.oldLocalFileObjectURL),n.oldLocalFileObjectURL=window.URL.createObjectURL(e),null===(t=n.openFileSelected)||void 0===t||t.call(n,{url:n.oldLocalFileObjectURL,file:e}),n.openURL(n.oldLocalFileObjectURL)}else n.openURL()},n.openURL=function(e){e5(),e&&(n.openFileOptions.source=e,n.openFileOptions.pdfParameters=null),n.openLightBox(n.openLocalFileInput)},n.openBase64=function(e){n.openFileOptions.source=null,n.openFileOptions.pdfParameters={data:atob(e)},n.openURL()},n.openLocalFile=function(){e5(),n.openLocalFileInput.click()},n.initControls=function(){var e=eK("body");if(!1!==n.defaults.autoPDFLinktoViewer&&e.on("click",'a[href$=".pdf"]',function(e){var t=eK(this);void 0!==t.attr("download")||"_blank"===t.attr("target")||t.hasClass("df-ui-btn")||t.parents(".df-app").length>0||(e.preventDefault(),t.data("df-source",t.attr("href")),n.openLightBox(t))}),window.addEventListener("popstate",function(e){n.activeLightBox&&n.activeLightBox.app&&!eQ.isChromeExtension()&&n.activeLightBox.closeButton.trigger("click")}),e.on("click",".df-open-local-file",function(e){n.openLocalFile()}),e.on("click",".df-sidemenu-buttons .df-ui-close",function(){eK(this).closest(".df-app").find(".df-ui-btn.df-active").trigger("click")}),e.on("mouseout",".df-link-content section.squareAnnotation, .df-link-content section.textAnnotation, .df-link-content section.freeTextAnnotation",function(){var e=eK(this);n.handlePopup(e,!1)}),e.on("mouseover",".df-link-content section.squareAnnotation, .df-link-content section.textAnnotation, .df-link-content section.freeTextAnnotation",function(){var e=eK(this);n.handlePopup(e,!0)}),n.handlePopup=function(e){var t=!(arguments.length>1)||void 0===arguments[1]||arguments[1],i=e.closest(".df-container"),n=i.find(".df-comment-popup");if(n.toggleClass("df-active",t),t){var a=e[0].getBoundingClientRect(),o=i[0].getBoundingClientRect(),s=e.find(".popupWrapper").first();if(e.hasClass("popupTriggerArea")){var r=e.data("annotation-id");void 0!==r&&(s=e.siblings("[data-annotation-id=popup_"+r+"]"))}n.html(s.html());var l=a.left-o.left;l+360>o.width?l=o.width-360-10:l<10&&(l=10);var h=a.top-o.top+a.height+5;h+n.height()>o.height?h=a.top-n.height()-a.height-10:h<10&&(h=10),n.css({left:l,top:h})}},void 0!=n.fileDropElement){var t=eK(n.fileDropElement);t.length>0&&(t.on("dragover",function(e){e.preventDefault(),e.stopPropagation(),eK(this).addClass("df-dragging")}),t.on("dragleave",function(e){e.preventDefault(),e.stopPropagation(),eK(this).removeClass("df-dragging")}),t.on("drop",function(e){var t=e.originalEvent.dataTransfer.files;t.length&&n.fileDropHandler(t,e)}))}};var e8=n.jQuery,e4=n.REQUEST_STATUS,e9=n.utils,e7=/*#__PURE__*/function(){var e;function t(e){var i,a,o;(function(e,t){if(!(e instanceof t))throw TypeError("Cannot call a class as a function")})(this,t),this.options=e,this.viewerType=this.options.viewerType,this.startPage=1,this.endPage=1,this.element=e8(this.options.element),e.maxTextureSize=null!==(i=e.maxTextureSize)&&void 0!==i?i:2048,e9.isMobile&&(e.maxTextureSize=4096===e.maxTextureSize?3200:e.maxTextureSize),this.dimensions={padding:{},offset:{},pageFit:{},stage:{},isAutoHeight:"auto"===e.height,maxTextureSize:e.maxTextureSize},this.is3D=e.is3D,this.options.pixelRatio=e9.limitAt(this.options.pixelRatio,1,this.options.maxDPI),this.options.fakeZoom=null!==(a=this.options.fakeZoom)&&void 0!==a?a:1,this.events={},this.links=e.links,this.thumbSize=128,this.pendingZoom=!0,this.currentPageNumber=this.options.openPage||this.startPage,this.hashNavigationEnabled=!0===this.options.hashNavigationEnabled,this.pendingZoom=!0,this.zoomValue=1,this.pageScaling=n.PAGE_SCALE.MANUAL,this.isRTL=e.readDirection===n.READ_DIRECTION.RTL,this.jumpStep=1,this.resizeRequestStatus=e4.OFF,this.refreshRequestStatus=e4.OFF,this.refreshRequestCount=0,this.resizeRequestCount=0,this.fullscreenSupported=e9.hasFullscreenEnabled(),this.thumbRequestCount=0,this.isExternalReady=null===(o=this.options.isExternalReady)||void 0===o||o,this.init(),!0===this.options.autoLightBoxFullscreen&&!0===this.options.isLightBox&&this.switchFullscreen(),this.executeCallback("onCreate"),this.target=this}return e=[{key:"init",value:function(){var e=this.options;if(this.initDOM(),this.initResourcesLocation(),this.initInfo(),(null==e.source||0===e.source.length)&&null==e.pdfParameters){this.updateInfo("ERROR: Set a Valid Document Source.",n.INFO_TYPE.ERROR),this.container.removeClass("df-loading").addClass("df-error");return}if(e9.isIEUnsupported){this.updateInfo("Your browser (Internet Explorer) is out of date! <br><a href='https://browsehappy.com/'>Upgrade to a new browser.</a>","df-old-browser"),this.container.removeClass("df-loading").addClass("df-error");return}this.commentPopup=e8('<div class="df-comment-popup">').appendTo(this.container),this.viewer=new this.viewerType(e,this),this.sideMenu=new e1({parentElement:this.container},this),this.provider=new n.providers[e.providerType](e,this),this.state="loading",this.checkRequestQueue()}},{key:"initDOM",value:function(){this.element.addClass("df-app").removeClass("df-container df-loading"),this.container=e8("<div>").appendTo(this.element),this.container.addClass("df-container df-loading df-init df-controls-"+this.options.controlsPosition+(!0===this.options.controlsFloating?" df-float":" df-float-off")+("transparent"===this.options.backgroundColor?" df-transparent":"")+(!0===this.isRTL?" df-rtl":"")+(!0===e9.isIOS||!0===e9.isIPad?" df-ios":"")),this._offsetParent=this.container[0].offsetParent,this.backGround=e8("<div class='df-bg'>").appendTo(this.container).css({backgroundColor:this.options.backgroundColor,backgroundImage:this.options.backgroundImage?"url('"+this.options.backgroundImage+"')":""}),this.viewerContainer=e8("<div>").appendTo(this.container),this.viewerContainer.addClass("df-viewer-container")}},{key:"initResourcesLocation",value:function(){var e=this.options;if(void 0!==window[n.locationVar]){if(e.pdfjsSrc=window[n.locationVar]+"js/libs/pdf.min.js",e.threejsSrc=window[n.locationVar]+"js/libs/three.min.js",e.pdfjsWorkerSrc=window[n.locationVar]+"js/libs/pdf.worker.min.js",e.soundFile=window[n.locationVar]+e.soundFile,e.imagesLocation=window[n.locationVar]+e.imagesLocation,e.imageResourcesPath=window[n.locationVar]+e.imageResourcesPath,e.cMapUrl=window[n.locationVar]+e.cMapUrl,void 0!==e.pdfVersion){var t="";"latest"==e.pdfVersion||"beta"==e.pdfVersion?t="latest":"stable"==e.pdfVersion&&(t="stable"),("latest"==e.pdfVersion||"default"==e.pdfVersion)&&(Array.prototype.at,void 0===Array.prototype.at&&(t="stable",console.log("Proper Support for Latest version PDF.js 3.7 not available. Switching to PDF.js 2.5!"))),"default"!==t&&""!==t&&(e.pdfjsSrc=window[n.locationVar]+"js/libs/pdfjs/"+t+"/pdf.min.js",e.pdfjsWorkerSrc=window[n.locationVar]+"js/libs/pdfjs/"+t+"/pdf.worker.min.js"),"stable"===t&&(this.options.fakeZoom=1)}}else console.warn("DEARVIEWER locationVar not found!");this.executeCallback("onInitResourcesLocation")}},{key:"initEvents",value:function(){var e=this.container[0];window.addEventListener("resize",this.events.resize=this.resetResizeRequest.bind(this),!1),e.addEventListener("mousemove",this.events.mousemove=this.mouseMove.bind(this),!1),e.addEventListener("mousedown",this.events.mousedown=this.mouseDown.bind(this),!1),window.addEventListener("mouseup",this.events.mouseup=this.mouseUp.bind(this),!1),e.addEventListener("touchmove",this.events.touchmove=this.mouseMove.bind(this),!1),e.addEventListener("touchstart",this.events.touchstart=this.mouseDown.bind(this),!1),window.addEventListener("touchend",this.events.touchend=this.mouseUp.bind(this),!1)}},{key:"mouseMove",value:function(e){e.touches&&e.touches.length>1&&e.preventDefault(),!0===this.viewer.acceptAppMouseEvents&&this.viewer.mouseMove(e)}},{key:"mouseDown",value:function(e){this.userHasInteracted=!0,!0===this.viewer.acceptAppMouseEvents&&0===e8(e.srcElement).closest(".df-sidemenu").length&&this.viewer.mouseDown(e)}},{key:"mouseUp",value:function(e){this.viewer&&!0===this.viewer.acceptAppMouseEvents&&this.viewer.mouseUp(e)}},{key:"softDispose",value:function(){this.softDisposed=!0,this.provider.dispose(),this.viewer.dispose()}},{key:"softInit",value:function(){this.viewer=new this.viewerType(this.options,this),this.provider=new n.providers[this.options.providerType](this.options,this),this.softDisposed=!1}},{key:"dispose",value:function(){var e,t,i,n,a,o=this.container[0];clearInterval(this.autoPlayTimer),this.autoPlayTimer=null,this.autoPlayFunction=null,this.provider=e9.disposeObject(this.provider),this.contentProvider=null,this.target=null,this.viewer=e9.disposeObject(this.viewer),this.sideMenu=e9.disposeObject(this.sideMenu),this.ui=e9.disposeObject(this.ui),this.thumblist=e9.disposeObject(this.thumblist),this.outlineViewer=e9.disposeObject(this.outlineViewer),this.events&&(window.removeEventListener("resize",this.events.resize,!1),o.removeEventListener("mousemove",this.events.mousemove,!1),o.removeEventListener("mousedown",this.events.mousedown,!1),window.removeEventListener("mouseup",this.events.mouseup,!1),o.removeEventListener("touchmove",this.events.touchmove,!1),o.removeEventListener("touchstart",this.events.touchstart,!1),window.removeEventListener("touchend",this.events.touchend,!1)),this.events=null,this.options=null,this.element.removeClass("df-app"),this.viewerType=null,this.checkRequestQueue=null,null===(e=this.info)||void 0===e||e.remove(),this.info=null,null===(t=this.loadingIcon)||void 0===t||t.remove(),this.loadingIcon=null,null===(i=this.backGround)||void 0===i||i.remove(),this.backGround=null,null===(n=this.outlineContainer)||void 0===n||n.remove(),this.outlineContainer=null,null===(a=this.commentPopup)||void 0===a||a.remove(),this.commentPopup=null,this.viewerContainer.off(),this.viewerContainer.remove(),this.viewerContainer=null,this.container.off(),this.container.remove(),this.container=null,this.element.off(),this.element.data("df-app",null),this.element=null,this._offsetParent=null,this.dimensions=null}},{key:"resetResizeRequest",value:function(){this.resizeRequestStatus=e4.COUNT,this.resizeRequestCount=0,this.container.addClass("df-pendingresize"),this.pendingResize=!0}},{key:"initInfo",value:function(){this.info=e8("<div>",{class:"df-loading-info"}),this.container.append(this.info),this.info.html(this.options.text.loading+"..."),this.loadingIcon=e8("<div>",{class:"df-loading-icon"}).appendTo(this.container)}},{key:"updateInfo",value:function(e,t){e9.log(e),void 0!==this.info&&this.info.html(e)}},{key:"_documentLoaded",value:function(){e9.log("Document Loaded"),this.isDocumentReady=!0,this.contentProvider=this.provider,this.executeCallback("onDocumentLoad"),this.endPage=this.pageCount=this.provider.pageCount,this.currentPageNumber=this.getValidPage(this.currentPageNumber)}},{key:"_viewerPrepared",value:function(){e9.log("Viewer Prepared"),this.isViewerPrepared=!0,this.executeCallback("onViewerLoad")}},{key:"requestFinalize",value:function(){!0===this.isDocumentReady&&!0===this.isViewerPrepared&&!0===this.isExternalReady&&!0!==this.finalizeRequested&&(this.finalizeRequested=!0,this.finalize())}},{key:"finalizeComponents",value:function(){this.ui=new eY({},this),this.ui.init(),this.calculateLayout(),this.viewer.init()}},{key:"finalize",value:function(){this.resize(),this.ui.update(),this.initEvents(),!0==this.options.isLightBox&&this.analytics({eventAction:this.options.analyticsViewerOpen,options:this.options}),this.container.removeClass("df-loading df-init"),this.viewer.onReady(),this.analytics({eventAction:this.options.analyticsViewerReady,options:this.options}),this.executeCallback("onReady"),!0===this.options.dataElement.hasClass("df-hash-focused")&&(e9.focusHash(this.options.dataElement),this.options.dataElement.removeClass("df-hash-focused")),!0===this.hashNavigationEnabled&&this.getURLHash(),e9.log("App Finalized")}},{key:"initOutline",value:function(){var e=e8("<div>").addClass("df-outline-container df-sidemenu");e.append('<div class="df-sidemenu-title">'+this.options.text.outlineTitle+"</div>");var t=e8("<div>").addClass("df-wrapper");e.append(t),this.sideMenu.element.append(e),this.outlineContainer=e,this.outlineViewer=new e2({container:t[0],linkService:this.provider.linkService,outlineItemClass:"df-outline-item",outlineToggleClass:"df-outline-toggle",outlineToggleHiddenClass:"df-outlines-hidden"}),this.outlineViewer.render({outline:this.provider.outline})}},{key:"initThumbs",value:function(){var e=this;e.thumblist=new e3({app:e,addFn:function(e){},scrollFn:function(){e.thumbRequestStatus=e4.ON},itemHeight:e.thumbSize,itemWidth:e9.limitAt(Math.floor(e.dimensions.defaultPage.ratio*e.thumbSize),32,180),totalRows:e.pageCount}),e.thumblist.lastScrolled=Date.now(),e.thumbRequestStatus=e4.ON;var t=e8("<div>").addClass("df-thumb-container df-sidemenu");t.append('<div class="df-sidemenu-title">'+this.options.text.thumbTitle+"</div>"),t.append(e8(e.thumblist.container).addClass("df-wrapper")),e.thumbContainer=t,e.sideMenu.element.append(t),e.container.on("click",".df-thumb-container .df-thumb",function(t){t.stopPropagation();var i=e8(this).attr("id").replace("df-thumb","");e.gotoPage(parseInt(i,10))})}},{key:"initSearch",value:function(){var e=this,t=e8("<div>").addClass("df-search-container df-sidemenu");t.append('<div class="df-sidemenu-title">'+this.options.text.searchTitle+"</div>"),e.searchForm=e8('<div class="df-search-form">').appendTo(t),e.searchBox=e8('<input type="text" class="df-search-text" placeholder="'+this.options.text.searchPlaceHolder+'">').on("keyup",function(t){13===t.keyCode&&e.search()}).appendTo(e.searchForm),e.searchButton=e8('<div class="df-ui-btn df-search-btn df-icon-search">').on("click",function(t){e.search()}).appendTo(e.searchForm),e.clearButton=e8('<a class="df-search-clear">Clear</a>').on("click",function(t){e.clearSearch()}).appendTo(e.searchForm),e.searchInfo=e8('<div class="df-search-info">').appendTo(t),e.searchResults=e8('<div class="df-wrapper df-search-results">').appendTo(t),e.searchContainer=t,e.sideMenu.element.append(t),e.container.on("click",".df-search-result",function(t){t.stopPropagation();var i=e8(this).data("df-page");e.gotoPage(parseInt(i,10))})}},{key:"search",value:function(e){void 0==e&&(e=this.searchBox.val()),this.provider.search(e.trim())}},{key:"clearSearch",value:function(){this.searchBox.val(""),this.searchInfo.html(""),this.provider.clearSearch()}},{key:"updateSearchInfo",value:function(e){e9.log(e),void 0!==this.searchInfo&&this.searchInfo.html(e)}},{key:"checkRequestQueue",value:function(){var e=this;if(e.checkRequestQueue&&requestAnimationFrame(function(){e&&e.checkRequestQueue&&e.checkRequestQueue()}),!e.softDisposed){if("ready"!=e.state){"loading"===e.state&&!0===this.isDocumentReady&&!0===this.isViewerPrepared&&!0===this.isExternalReady&&(e.state="finalizing",this.finalizeComponents()),"finalizing"===e.state&&(e.state="ready",e.finalize());return}e.container&&e.container[0]&&e._offsetParent!==e.container[0].offsetParent&&(e._offsetParent=e.container[0].offsetParent,null!==e._offsetParent&&(e.resize(),e.resizeRequestStatus=e4.OFF),e9.log("Visibility Resize Detected")),(null!==e._offsetParent||e.isFullscreen)&&(TWEEN.getAll().length>0&&(TWEEN.update(),e.renderRequestStatus=e4.ON),e.resizeRequestStatus===e4.ON?(e.resizeRequestStatus=e4.OFF,e.resize()):e.resizeRequestStatus===e4.COUNT&&(e.resizeRequestCount++,e.resizeRequestCount>10&&(e.resizeRequestCount=0,e.resizeRequestStatus=e4.ON)),e.refreshRequestStatus===e4.ON?(e.refreshRequestStatus=e4.OFF,e.pendingResize=!1,e.viewer.refresh(),this.container.removeClass("df-pendingresize")):e.refreshRequestStatus===e4.COUNT&&(e.refreshRequestCount++,e.refreshRequestCount>3&&(e.refreshRequestCount=0,e.refreshRequestStatus=e4.ON)),e.textureRequestStatus===e4.ON&&e.processTextureRequest(),e.thumbRequestStatus===e4.ON?e.processThumbRequest():e.thumbRequestStatus===e4.COUNT&&(e.thumbRequestCount++,e.thumbRequestCount>3&&(e.thumbRequestCount=0,e.thumbRequestStatus=e4.ON)),e.renderRequestStatus===e4.ON&&(e.viewer.render(),e.renderRequestStatus=e4.OFF),e.provider.checkRequestQueue(),e.viewer.checkRequestQueue())}}},{key:"processTextureRequest",value:function(){var e,t,i=this.viewer,a=this.provider,o=i.getVisiblePages().main,s=0,r=this.zoomValue>1;if(i.isAnimating()&&!0!==DEARFLIP.defaults.instantTextureProcess)this.textureRequestStatus=e4.ON;else{e9.log("Texture Request Working");for(var l=0;l<o.length;l++){s=0;var h=o[l];if(h>0&&h<=this.pageCount&&((e=r?i.zoomViewer.getPageByNumber(h):i.getPageByNumber(h))&&(t=i.getTextureSize({pageNumber:h}),e.changeTexture(h,Math.floor(t.height))&&(a.processPage({pageNumber:h,textureTarget:r?n.TEXTURE_TARGET.ZOOM:n.TEXTURE_TARGET.VIEWER}),s++,this.viewer.getAnnotationElement(h,!0))),s>0))break}0===s&&(this.textureRequestStatus=e4.OFF)}}},{key:"applyTexture",value:function(e,t){var i=void 0!==e.toDataURL;if(t.textureTarget===n.TEXTURE_TARGET.THUMB){if(t.height=e.height,t.width=e.width,i){var a=e.toDataURL("image/png");this.provider.setCache(t.pageNumber,a,this.thumbSize),t.texture=a}else t.texture=e.src;this.thumblist.setPage(t)}else t.texture=i?e:e.src,!0===this.viewer.setPage(t)&&(this.provider.processAnnotations(t.pageNumber,this.viewer.getAnnotationElement(t.pageNumber,!0)),this.provider.processTextContent(t.pageNumber,this.viewer.getTextElement(t.pageNumber,!0)))}},{key:"processThumbRequest",value:function(){null!==this.thumblist&&void 0!==this.thumblist&&this.thumblist.processThumbRequest()}},{key:"refreshRequestStart",value:function(){this.refreshRequestStatus=e4.COUNT,this.refreshRequestCount=0}},{key:"renderRequestStart",value:function(){this.renderRequestStatus=e4.ON}},{key:"resizeRequestStart",value:function(){this.resizeRequestStatus=e4.ON}},{key:"zoom",value:function(e){this.pendingZoom=!0,this.zoomDelta=e,this.resize()}},{key:"resetZoom",value:function(){1!==this.zoomValue&&(this.zoomValue=1.001,this.zoom(-1))}},{key:"calculateLayout",value:function(){var e,t,i=this.isSideMenuOpen=this.container.hasClass("df-sidemenu-open"),a=this.dimensions,o=this.dimensions.padding,s=e8(window).height();a.offset={top:0,left:this.options.sideMenuOverlay||!i||this.isRTL?0:220,right:!this.options.sideMenuOverlay&&i&&this.isRTL?220:0,bottom:0,width:!this.options.sideMenuOverlay&&i?220:0},this.viewerContainer.css({left:a.offset.left,right:a.offset.right});var r=a.controlsHeight=this.container.find(".df-ui").height();if(o.top=this.options.paddingTop+(this.options.controlsPosition===n.CONTROLS_POSITION.TOP?r:0),o.left=this.options.paddingLeft,o.right=this.options.paddingRight,o.bottom=this.options.paddingBottom+(this.options.controlsPosition===n.CONTROLS_POSITION.BOTTOM?r:0),o.height=o.top+o.bottom,o.width=o.left+o.right,o.heightDiff=o.top-o.bottom,o.widthDiff=o.left-o.right,a.isFullSize=!0===this.isFullscreen,a.isFixedHeight=a.isFullSize||!a.isAutoHeight,a.containerWidth=a.isFullSize?e8(window).width():this.element.width(),this.container.toggleClass("df-xs",a.containerWidth<400).toggleClass("df-xss",a.containerWidth<320),a.maxHeight=s-(a.containerWidth>600&&null!==(t=e8(null!==(e=this.options.headerElementSelector)&&void 0!==e?e:"#wpadminbar").height())&&void 0!==t?t:0),a.isFixedHeight){if(a.isFullSize)a.maxHeight=s;else{this.element.height(this.options.height);var l=this.element.height();a.maxHeight=Math.min(l,a.maxHeight)}}a.width,a.stage.innerWidth=this.viewer._getInnerWidth();var h=a.stage.innerHeight=this.viewer._getInnerHeight(),u=this.viewer._getOuterHeight(h+a.padding.height);a.containerHeight=a.isFullSize?s:u,this.element.height(a.containerHeight);var p=this.element.height();a.isFullSize||p==a.containerHeight||(a.containerHeight=p,a.stage.innerHeight=p-a.padding.height,a.stage.height=p),a.origin={x:(o.widthDiff+a.containerWidth-a.offset.left-a.offset.right)/2,y:(o.heightDiff+a.containerHeight)/2},this.viewer.determinePageMode()}},{key:"resize",value:function(){var e=!(arguments.length>0)||void 0===arguments[0]||arguments[0];e9.log("Resize Request Initiated"),this.calculateLayout(),this.viewer.handleZoom(),this.viewer.resize(),!1!==e&&(this.pendingZoom?(this.viewer.refresh(),e9.log("Pending Zoom updated")):this.refreshRequestStart(),this.ui.update(),this.renderRequestStatus=e4.ON,this.zoomChanged=!1,this.pendingZoom=!1,this.executeCallback("afterResize"))}},{key:"hasOutline",value:function(){if(this.provider.outline.length>0)return!0}},{key:"switchFullscreen",value:function(){var e,t,i=this,n=i.container[0];if(i.container.toggleClass("df-fullscreen",!0!==i.isFullscreen),(null==i?void 0:null===(t=i.ui)||void 0===t?void 0:null===(e=t.controls)||void 0===e?void 0:e.fullscreen)&&i.ui.controls.fullScreen.toggleClass(i.options.icons["fullscreen-off"],!0!==i.isFullscreen),!0!==i.isFullscreen){var a=null;n.requestFullscreen?a=n.requestFullscreen():n.msRequestFullscreen?a=n.msRequestFullscreen():n.mozRequestFullScreen?a=n.mozRequestFullScreen():n.webkitRequestFullscreen&&(a=n.webkitRequestFullscreen()),a&&a.then&&a.then(function(){i.refreshRequestStatus,e4.ON,i.resize()}),i.isFullscreen=!0}else i.isFullscreen=!1,document.exitFullscreen?document.fullscreenElement&&document.exitFullscreen():document.msExitFullscreen?document.msExitFullscreen():document.mozCancelFullScreen?document.mozCancelFullScreen():document.webkitExitFullscreen&&document.webkitExitFullscreen(),e9.hasFullscreenEnabled()||i.container[0].scrollIntoView();e9.hasFullscreenEnabled()||(i.resizeRequestStatus=e4.ON)}},{key:"next",value:function(){this.jumpBy(this.jumpStep)}},{key:"prev",value:function(){this.jumpBy(-this.jumpStep)}},{key:"jumpBy",value:function(e){var t=this.currentPageNumber+e;t=e9.limitAt(t,this.startPage,this.endPage),!0!=this.anyFirstPageChanged&&(this.analytics({eventAction:this.options.analyticsFirstPageChange,options:this.options}),this.anyFirstPageChanged=!0),this.gotoPage(t),this.ui.update()}},{key:"openRight",value:function(){this.isRTL?this.prev():this.next()}},{key:"openLeft",value:function(){this.isRTL?this.next():this.prev()}},{key:"start",value:function(){this.gotoPage(this.startPage)}},{key:"end",value:function(){this.gotoPage(this.endPage)}},{key:"gotoPage",value:function(e){e=this.getValidPage(parseInt(e,10)),null!==this.viewer&&!1!==this.viewer.validatePageChange(e)&&(this.executeCallback("beforePageChanged"),this.requestDestRefKey=void 0,this.container.removeClass("df-fetch-pdf"),this.oldPageNumber=this.currentPageNumber,this.currentPageNumber=e,this.thumbRequestStatus=e4.ON,this.viewer.gotoPageCallBack&&this.viewer.gotoPageCallBack(),this.ui.update(),!0==this.autoPlay&&this.setAutoPlay(this.autoPlay),!0===this.hashNavigationEnabled&&this.getURLHash(),this.executeCallback("onPageChanged"))}},{key:"gotoPageLabel",value:function(e){this.gotoPage(this.provider.getPageNumberForLabel(e.toString().trim()))}},{key:"getCurrentLabel",value:function(){return this.provider.getLabelforPage(this.currentPageNumber)}},{key:"autoPlayFunction",value:function(){this&&this.autoPlay&&(e9.limitAt(this.currentPageNumber+this.jumpStep,this.startPage,this.endPage)!==this.currentPageNumber?this.next():this.setAutoPlay(!1))}},{key:"setAutoPlay",value:function(e){if(this.options.autoPlay){var t=(e=!0==e)?this.options.text.pause:this.options.text.play;this.ui.controls.play.toggleClass(this.options.icons.pause,e),this.ui.controls.play.html("<span>"+t+"</span>"),this.ui.controls.play.attr("title",t),clearInterval(this.autoPlayTimer),e&&(this.autoPlayTimer=setInterval(this.autoPlayFunction.bind(this),this.options.autoPlayDuration)),this.autoPlay=e}}},{key:"isValidPage",value:function(e){return this.provider._isValidPage(e)}},{key:"getValidPage",value:function(e){return isNaN(e)?e=this.currentPageNumber:e<1?e=1:e>this.pageCount&&(e=this.pageCount),e}},{key:"getURLHash",value:function(){if(null!=this.options.id){var e=e9.getSharePrefix(this.options.sharePrefix)+(null!=this.options.slug?this.options.slug:this.options.id)+"/";null!=this.currentPageNumber&&(e+=this.currentPageNumber+"/"),history.replaceState(void 0,void 0,"#"+e)}return window.location.href}},{key:"executeCallback",value:function(e){}},{key:"analytics",value:function(e){}}],function(e,t){for(var i=0;i<t.length;i++){var n=t[i];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}(t.prototype,e),t}();n.prepareOptions=function(e){t=e.element,(null!=e8&&"undefined"!=typeof Symbol&&e8[Symbol.hasInstance]?e8[Symbol.hasInstance](t):t instanceof e8)||(e.element=e8(e.element));var t,i=e.element;null==e.dataElement&&(e.dataElement=i);var a=e.dataElement,o=n.utils.getOptions(a),s=e8.extend(!0,{},n.defaults,e,o);s=e9.fallbackOptions(s),e9.log(s);var r=e8.extend(!0,{},n._defaults,s);return e9.isMobile&&"function"==typeof n.viewers[r.mobileViewerType]&&(r.viewerType=r.mobileViewerType),"function"!=typeof n.viewers[r.viewerType]?(console.warn("Invalid Viewer Type! "+r.viewerType+" | Using default Viewer!"),r.viewerType=n.viewers.default):r.viewerType=n.viewers[r.viewerType],r=e9.finalizeOptions(e9.sanitizeOptions(r))},n.Application=function(e){var t=n.prepareOptions(e),i=new e7(t);return e.element.data("df-app",i),null!=t.id&&!0!==t.isLightBox&&(window[t.id.toString()]=i),i},e8.fn.extend({dearviewer_options:function(e){return null==e&&(e={}),e.element=e8(this),new n.prepareOptions(e)},dearviewer:function(e){return null==e&&(e={}),e.element=e8(this),new n.Application(e)}});var e6=n.jQuery,te=window.DFLIP=window.DEARFLIP=n;te.defaults.viewerType="flipbook",te.slug="dflip",te.locationVar="dFlipLocation",te.locationFile="dflip",te.PAGE_MODE={SINGLE:1,DOUBLE:2,AUTO:null},te.SINGLE_PAGE_MODE={ZOOM:1,BOOKLET:2,AUTO:null},te.CONTROLSPOSITION={HIDDEN:"hide",TOP:"top",BOTTOM:"bottom"},te.DIRECTION={LTR:1,RTL:2},te.PAGE_SIZE={AUTO:0,SINGLE:1,DOUBLEINTERNAL:2},te.parseFallBack=function(){e6(".df-posts").addClass("dflip-books"),e6(".dflip-books").addClass("df-posts"),e6("._df_button, ._df_thumb, ._df_book").each(function(){var e=e6(this);"true"!==e.data("df-parsed")&&(e.addClass("df-element"),e.hasClass("_df_book")||(e.hasClass("_df_thumb")?(e.attr("data-df-lightbox","thumb"),void 0!==e.attr("thumb")&&e.data("df-thumb",e.attr("thumb"))):e.attr("data-df-lightbox","button")))})},te.parseBooks=function(){te.parseFallBack(),te.parseElements()};var tt=function(e){var t,i;return null!=e.source&&(Array===e.source.constructor||Array.isArray(e.source)||(t=e.source,null!=(i=Array)&&"undefined"!=typeof Symbol&&i[Symbol.hasInstance]?!!i[Symbol.hasInstance](t):t instanceof i))&&(e.providerType="image"),null!=e.cover3DType&&(!0==e.cover3DType||"true"==e.cover3DType?e.cover3DType=te.FLIPBOOK_COVER_TYPE.BASIC:(!1==e.cover3DType||"false"==e.cover3DType)&&(e.cover3DType=te.FLIPBOOK_COVER_TYPE.NONE)),void 0!==e.pageSize&&("1"===e.pageSize||1===e.pageSize||e.pageSize===te.FLIPBOOK_PAGE_SIZE.SINGLE?e.pageSize=te.FLIPBOOK_PAGE_SIZE.SINGLE:"2"===e.pageSize||2===e.pageSize||e.pageSize===te.FLIPBOOK_PAGE_SIZE.DOUBLE_INTERNAL?e.pageSize=te.FLIPBOOK_PAGE_SIZE.DOUBLE_INTERNAL:e.pageSize===te.FLIPBOOK_PAGE_SIZE.DOUBLE_COVER_BACK||(e.pageSize=te.FLIPBOOK_PAGE_SIZE.AUTO)),void 0!==e.pageMode&&("1"===e.pageMode||1===e.pageMode||e.pageMode===te.FLIPBOOK_PAGE_MODE.SINGLE?e.pageMode=te.FLIPBOOK_PAGE_MODE.SINGLE:"2"===e.pageMode||2===e.pageMode||e.pageMode===te.FLIPBOOK_PAGE_MODE.DOUBLE?e.pageMode=te.FLIPBOOK_PAGE_MODE.DOUBLE:e.pageMode=te.FLIPBOOK_PAGE_MODE.AUTO),void 0!==e.singlePageMode&&("1"===e.singlePageMode||1===e.singlePageMode||e.singlePageMode===te.FLIPBOOK_SINGLE_PAGE_MODE.ZOOM?e.singlePageMode=te.FLIPBOOK_SINGLE_PAGE_MODE.ZOOM:"2"===e.singlePageMode||2===e.singlePageMode||e.singlePageMode===te.FLIPBOOK_SINGLE_PAGE_MODE.BOOKLET?e.singlePageMode=te.FLIPBOOK_SINGLE_PAGE_MODE.BOOKLET:e.singlePageMode=te.FLIPBOOK_SINGLE_PAGE_MODE.AUTO),void 0!==e.controlsPosition&&"hide"===e.controlsPosition&&(e.controlsPosition=te.CONTROLS_POSITION.HIDDEN),void 0!==e.overwritePDFOutline&&(e.overwritePDFOutline=l.isTrue(e.overwritePDFOutline)),void 0!==e.webgl&&(e.is3D=e.webgl=e.webgl,delete e.webgl),void 0!==e.webglShadow&&(e.has3DShadow=l.isTrue(e.webglShadow),delete e.webglShadow),void 0!==e.scrollWheel&&(l.isTrue(e.scrollWheel)&&(e.mouseScrollAction=te.MOUSE_SCROLL_ACTIONS.ZOOM),delete e.scrollWheel),void 0!==e.stiffness&&delete e.stiffness,void 0!==e.soundEnable&&(e.enableSound=l.isTrue(e.soundEnable),delete e.soundEnable),void 0!==e.enableDownload&&(e.showDownloadControl=l.isTrue(e.enableDownload),delete e.enableDownload),void 0!==e.autoEnableOutline&&(e.autoOpenOutline=l.isTrue(e.autoEnableOutline),delete e.autoEnableOutline),void 0!==e.autoEnableThumbnail&&(e.autoOpenThumbnail=l.isTrue(e.autoEnableThumbnail),delete e.autoEnableThumbnail),void 0!==e.direction&&("2"===e.direction||2===e.direction||e.direction===te.READ_DIRECTION.RTL?e.readDirection=te.READ_DIRECTION.RTL:e.readDirection=te.READ_DIRECTION.LTR,delete e.direction),void 0!==e.hard&&(e.flipbookHardPages=e.hard,"hard"===e.flipbookHardPages&&(e.flipbookHardPages="all"),delete e.hard),void 0!==e.forceFit&&delete e.forceFit,l.sanitizeOptions(e)};e6.fn.extend({flipBook:function(e,t){return null==t&&(t={}),t.source=e,t.element=e6(this),new n.Application(t)}}),e6(document).ready(function(){var e=e6("body");te.executeCallback("beforeDearFlipInit"),void 0!==window.dFlipWPGlobal&&e6.extend(!0,te.defaults,tt(window.dFlipWPGlobal)),te.initUtils(),te.initControls(),e.on("click",".df-element[data-df-lightbox],.df-element[data-lightbox]",function(e){var t=e6(this);e.preventDefault(),e.stopPropagation(),te.openLightBox(t)}),te.checkBrowserURLforDefaults(),te.parseCSSElements(),te.parseFallBack(),l.detectHash(),te.parseNormalElements(),te.checkBrowserURLforPDF(!0),te.executeCallback("afterDearFlipInit")}),l.finalizeOptions=function(e){return tt(e)},te.executeCallback("onDearFlipLoad")}()}();