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viewer.min.js

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  1. /*!
    2. 

  2.  * Viewer.js v1.0.0
    3. 

  3.  * https://github.com/fengyuanchen/viewerjs
    4. 

  4.  *
    5. 

  5.  * Copyright (c) 2015-2018 Chen Fengyuan
    6. 

  6.  * Released under the MIT license
    7. 

  7.  *
    8. 

  8.  * Date: 2018-04-01T05:33:18.955Z
    9. 

  9.  */
    10. 

  10. !function(t,i){"object"==typeof exports&&"undefined"!=typeof module?module.exports=i():"function"==typeof define&&define.amd?define(i):t.Viewer=i()}(this,function(){"use strict";var n={inline:!1,button:!0,navbar:!0,title:!0,toolbar:!0,tooltip:!0,movable:!0,zoomable:!0,rotatable:!0,scalable:!0,transition:!0,fullscreen:!0,interval:5e3,keyboard:!0,backdrop:!0,loading:!0,loop:!0,minWidth:200,minHeight:100,zoomRatio:.1,minZoomRatio:.01,maxZoomRatio:100,zIndex:2015,zIndexInline:0,url:"src",container:"body",filter:null,ready:null,show:null,shown:null,hide:null,hidden:null,view:null,viewed:null},s="undefined"!=typeof window,o=s?window:{},p="viewer",l="move",d="switch",c="zoom",m=p+"-active",w=p+"-fade",b=p+"-fixed",a=p+"-fullscreen-exit",y=p+"-hide",i=p+"-hide-md-down",e=p+"-hide-sm-down",r=p+"-hide-xs-down",u=p+"-in",x=p+"-invisible",f=p+"-loading",h=p+"-open",g=p+"-show",v=p+"-transition",D="ready",z="show",k="shown",E="hide",S="hidden",I="view",T="viewed",L="click",C="dragstart",M="keydown",N="load",Y=o.PointerEvent?"pointerdown":"touchstart mousedown",X=o.PointerEvent?"pointermove":"touchmove mousemove",R=o.PointerEvent?"pointerup pointercancel":"touchend touchcancel mouseup",q="resize",F="transitionend",O="wheel mousewheel DOMMouseScroll",W=["zoom-in","zoom-out","one-to-one","reset","prev","play","next","rotate-left","rotate-right","flip-horizontal","flip-vertical"],P="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t},A=function(t,i){if(!(t instanceof i))throw new TypeError("Cannot call a class as a function")},t=function(){function n(t,i){for(var e=0;e<i.length;e++){var n=i[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}return function(t,i,e){return i&&n(t.prototype,i),e&&n(t,e),t}}();function H(t){return"string"==typeof t}var j=Number.isNaN||o.isNaN;function B(t){return"number"==typeof t&&!j(t)}function V(t){return void 0===t}function K(t){return"object"===(void 0===t?"undefined":P(t))&&null!==t}var U=Object.prototype.hasOwnProperty;function Z(t){if(!K(t))return!1;try{var i=t.constructor,e=i.prototype;return i&&e&&U.call(e,"isPrototypeOf")}catch(t){return!1}}function $(t){return"function"==typeof t}function _(i,e){if(i&&$(e))if(Array.isArray(i)||B(i.length)){var t=i.length,n=void 0;for(n=0;n<t&&!1!==e.call(i,i[n],n,i);n+=1);}else K(i)&&Object.keys(i).forEach(function(t){e.call(i,i[t],t,i)});return i}var G=Object.assign||function(e){for(var t=arguments.length,i=Array(1<t?t-1:0),n=1;n<t;n++)i[n-1]=arguments[n];return K(e)&&0<i.length&&i.forEach(function(i){K(i)&&Object.keys(i).forEach(function(t){e[t]=i[t]})}),e},J=/^(?:width|height|left|top|marginLeft|marginTop)$/;function Q(t,i){var e=t.style;_(i,function(t,i){J.test(i)&&B(t)&&(t+="px"),e[i]=t})}function tt(t,i){return t.classList?t.classList.contains(i):-1<t.className.indexOf(i)}function it(t,i){if(i)if(B(t.length))_(t,function(t){it(t,i)});else if(t.classList)t.classList.add(i);else{var e=t.className.trim();e?e.indexOf(i)<0&&(t.className=e+" "+i):t.className=i}}function et(t,i){i&&(B(t.length)?_(t,function(t){et(t,i)}):t.classList?t.classList.remove(i):0<=t.className.indexOf(i)&&(t.className=t.className.replace(i,"")))}function nt(t,i,e){i&&(B(t.length)?_(t,function(t){nt(t,i,e)}):e?it(t,i):et(t,i))}var st=/([a-z\d])([A-Z])/g;function ot(t){return t.replace(st,"$1-$2").toLowerCase()}function at(t,i){return 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0;t.inline&&(e={width:Math.max(i.offsetWidth,t.minWidth),height:Math.max(i.offsetHeight,t.minHeight)},this.parentData=e),!this.fulled&&e||(e=this.containerData),this.viewerData=G({},e)},renderViewer:function(){this.options.inline&&!this.fulled&&Q(this.viewer,this.viewerData)},initList:function(){var a=this,t=this.element,r=this.options,i=this.list,h=[];_(this.images,function(t,i){var e,n=t.src,s=t.alt||(H(e=n)?e.replace(/^.*\//,"").replace(/[?&#].*$/,""):""),o=r.url;H(o)?o=t.getAttribute(o):$(o)&&(o=o.call(a,t)),(n||o)&&h.push('<li><img src="'+(n||o)+'" role="button" data-action="view" data-index="'+i+'" data-original-url="'+(o||n)+'" alt="'+s+'"></li>')}),i.innerHTML=h.join(""),this.items=i.getElementsByTagName("li"),_(this.items,function(i){var t=i.firstElementChild;rt(t,"filled",!0),r.loading&&it(i,f),ct(t,N,function(t){r.loading&&et(i,f),a.loadImage(t)},{once:!0})}),r.transition&&ct(t,T,function(){it(i,v)},{once:!0})},renderList:function(t){var i=t||this.index,e=this.items[i].offsetWidth||30,n=e+1;Q(this.list,G({width:n*this.length},mt({translateX:(this.viewerData.width-e)/2-n*i})))},resetList:function(){var t=this.list;t.innerHTML="",et(t,v),Q(t,mt({translateX:0}))},initImage:function(r){var h=this,l=this.options,t=this.image,i=this.viewerData,e=this.footer.offsetHeight,d=i.width,c=Math.max(i.height-e,e),u=this.imageData||{},n=void 0;this.imageInitializing={abort:function(){n.onload=null}},n=gt(t,function(t,i){var e=t/i,n=d,s=c;h.imageInitializing=!1,d<c*e?s=d/e:n=c*e;var o={naturalWidth:t,naturalHeight:i,aspectRatio:e,ratio:(n=Math.min(.9*n,t))/t,width:n,height:s=Math.min(.9*s,i),left:(d-n)/2,top:(c-s)/2},a=G({},o);l.rotatable&&(o.rotate=u.rotate||0,a.rotate=0),l.scalable&&(o.scaleX=u.scaleX||1,o.scaleY=u.scaleY||1,a.scaleX=1,a.scaleY=1),h.imageData=o,h.initialImageData=a,r&&r()})},renderImage:function(t){var i=this,e=this.image,n=this.imageData;if(Q(e,G({width:n.width,height:n.height,marginLeft:n.left,marginTop:n.top},mt(n))),t)if(this.viewing&&this.options.transition){var s=function(){i.imageRendering=!1,t()};this.imageRendering={abort:function(){dt(e,F,s)}},ct(e,F,s,{once:!0})}else t()},resetImage:function(){if(this.viewing||this.viewed){var t=this.image;this.viewing&&this.viewing.abort(),t.parentNode.removeChild(t),this.image=null}}},bt={bind:function(){var t=this.element,i=this.viewer;ct(i,L,this.onClick=this.click.bind(this)),ct(i,O,this.onWheel=this.wheel.bind(this)),ct(i,C,this.onDragStart=this.dragstart.bind(this)),ct(this.canvas,Y,this.onPointerDown=this.pointerdown.bind(this)),ct(t.ownerDocument,X,this.onPointerMove=this.pointermove.bind(this)),ct(t.ownerDocument,R,this.onPointerUp=this.pointerup.bind(this)),ct(t.ownerDocument,M,this.onKeyDown=this.keydown.bind(this)),ct(window,q,this.onResize=this.resize.bind(this))},unbind:function(){var t=this.element,i=this.viewer;dt(i,L,this.onClick),dt(i,O,this.onWheel),dt(i,C,this.onDragStart),dt(this.canvas,Y,this.onPointerDown),dt(t.ownerDocument,X,this.onPointerMove),dt(t.ownerDocument,R,this.onPointerUp),dt(t.ownerDocument,M,this.onKeyDown),dt(window,q,this.onResize)}},yt={click:function(t){var i=t.target,e=this.options,n=this.imageData;switch(at(i,"action")){case"mix":this.played?this.stop():e.inline?this.fulled?this.exit():this.full():this.hide();break;case"hide":this.hide();break;case"view":this.view(at(i,"index"));break;case"zoom-in":this.zoom(.1,!0);break;case"zoom-out":this.zoom(-.1,!0);break;case"one-to-one":this.toggle();break;case"reset":this.reset();break;case"prev":this.prev(e.loop);break;case"play":this.play(e.fullscreen);break;case"next":this.next(e.loop);break;case"rotate-left":this.rotate(-90);break;case"rotate-right":this.rotate(90);break;case"flip-horizontal":this.scaleX(-n.scaleX||-1);break;case"flip-vertical":this.scaleY(-n.scaleY||-1);break;default:this.played&&this.stop()}},load:function(){var t=this;this.timeout&&(clearTimeout(this.timeout),this.timeout=!1);var i=this.element,e=this.options,n=this.image,s=this.index,o=this.viewerData;et(n,x),e.loading&&et(this.canvas,f),n.style.cssText="height:0;margin-left:"+o.width/2+"px;margin-top:"+o.height/2+"px;max-width:none!important;position:absolute;width:0;",this.initImage(function(){nt(n,"viewer-move",e.movable),nt(n,v,e.transition),t.renderImage(function(){t.viewed=!0,t.viewing=!1,$(e.viewed)&&ct(i,T,e.viewed,{once:!0}),ut(i,T,{originalImage:t.images[s],index:s,image:n})})})},loadImage:function(t){var o=t.target,i=o.parentNode,a=i.offsetWidth||30,r=i.offsetHeight||50,h=!!at(o,"filled");gt(o,function(t,i){var e=t/i,n=a,s=r;a<r*e?h?n=r*e:s=a/e:h?s=a/e:n=r*e,Q(o,G({width:n,height:s},mt({translateX:(a-n)/2,translateY:(r-s)/2})))})},keydown:function(t){var i=this.options;if(this.fulled&&i.keyboard)switch(t.keyCode||t.which||t.charCode){case 27:this.played?this.stop():i.inline?this.fulled&&this.exit():this.hide();break;case 32:this.played&&this.stop();break;case 37:this.prev(i.loop);break;case 38:t.preventDefault(),this.zoom(i.zoomRatio,!0);break;case 39:this.next(i.loop);break;case 40:t.preventDefault(),this.zoom(-i.zoomRatio,!0);break;case 48:case 49:t.ctrlKey&&(t.preventDefault(),this.toggle())}},dragstart:function(t){"img"===t.target.tagName.toLowerCase()&&t.preventDefault()},pointerdown:function(t){var i=this.options,e=this.pointers;if(this.viewed&&!this.showing&&!this.viewing&&!this.hiding){t.changedTouches?_(t.changedTouches,function(t){e[t.identifier]=pt(t)}):e[t.pointerId||0]=pt(t);var n=!!i.movable&&l;1<Object.keys(e).length?n=c:"touch"!==t.pointerType&&"touchstart"!==t.type||!this.isSwitchable()||(n=d),this.action=n}},pointermove:function(t){var i=this.options,e=this.pointers,n=this.action,s=this.image;this.viewed&&n&&(t.preventDefault(),t.changedTouches?_(t.changedTouches,function(t){G(e[t.identifier],pt(t,!0))}):G(e[t.pointerId||0],pt(t,!0)),n===l&&i.transition&&tt(s,v)&&et(s,v),this.change(t))},pointerup:function(t){var 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e=Number(this.options.zoomRatio)||.1,n=1;t.deltaY?n=0<t.deltaY?1:-1:t.wheelDelta?n=-t.wheelDelta/120:t.detail&&(n=0<t.detail?1:-1),this.zoom(-n*e,!0,t)}}},xt={show:function(){var t=0<arguments.length&&void 0!==arguments[0]&&arguments[0],i=this.element,e=this.options;if(e.inline||this.showing||this.isShown||this.showing)return this;if(!this.ready)return this.build(),this.ready&&this.show(t),this;if($(e.show)&&ct(i,z,e.show,{once:!0}),!1===ut(i,z)||!this.ready)return this;this.hiding&&this.transitioning.abort(),this.showing=!0,this.open();var n=this.viewer;if(et(n,y),e.transition&&!t){var s=this.shown.bind(this);this.transitioning={abort:function(){dt(n,F,s),et(n,u)}},it(n,v),n.offsetWidth,ct(n,F,s,{once:!0}),it(n,u)}else it(n,u),this.shown();return this},hide:function(){var t=0<arguments.length&&void 0!==arguments[0]&&arguments[0],i=this.element,e=this.options;if(e.inline||this.hiding||!this.isShown&&!this.showing)return this;if($(e.hide)&&ct(i,E,e.hide,{once:!0}),!1===ut(i,E))return 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e=this.element,n=this.options,s=this.title,o=this.canvas,a=this.items[t],r=a.querySelector("img"),h=at(r,"originalUrl"),l=r.getAttribute("alt"),d=document.createElement("img");if(d.src=h,d.alt=l,$(n.view)&&ct(e,I,n.view,{once:!0}),!1===ut(e,I,{originalImage:this.images[t],index:t,image:d})||!this.isShown||this.hiding||this.played)return this;this.image=d,et(this.items[this.index],m),it(a,m),this.viewed=!1,this.index=t,this.imageData={},it(d,x),n.loading&&it(o,f),o.innerHTML="",o.appendChild(d),this.renderList(),s.innerHTML="";var c=function(){var t=i.imageData;s.textContent=l+" ("+t.naturalWidth+" × "+t.naturalHeight+")"},u=void 0;return ct(e,T,c,{once:!0}),this.viewing={abort:function(){dt(e,T,c),d.complete?this.imageRendering?this.imageRendering.abort():this.imageInitializing&&this.imageInitializing.abort():(dt(d,N,u),this.timeout&&clearTimeout(this.timeout))}},d.complete?this.load():(ct(d,N,u=this.load.bind(this),{once:!0}),this.timeout&&clearTimeout(this.timeout),this.timeout=setTimeout(function(){et(d,x),i.timeout=!1},1e3)),this},prev:function(){var t=0<arguments.length&&void 0!==arguments[0]&&arguments[0],i=this.index-1;return i<0&&(i=t?this.length-1:0),this.view(i),this},next:function(){var t=0<arguments.length&&void 0!==arguments[0]&&arguments[0],i=this.length-1,e=this.index+1;return i<e&&(e=t?0:i),this.view(e),this},move:function(t,i){var e=this.imageData;return this.moveTo(V(t)?t:e.left+Number(t),V(i)?i:e.top+Number(i)),this},moveTo:function(t){var i=1<arguments.length&&void 0!==arguments[1]?arguments[1]:t,e=this.imageData;if(t=Number(t),i=Number(i),this.viewed&&!this.played&&this.options.movable){var 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t=this.element,h=this.options,i=t.parentNode,e=document.createElement("div");e.innerHTML='<div class="viewer-container" touch-action="none"><div class="viewer-canvas"></div><div class="viewer-footer"><div class="viewer-title"></div><div class="viewer-toolbar"></div><div class="viewer-navbar"><ul class="viewer-list"></ul></div></div><div class="viewer-tooltip"></div><div role="button" class="viewer-button" data-action="mix"></div><div class="viewer-player"></div></div>';var 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    11.