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Filename : spin.min.js
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(function(t,e){"object"==typeof exports?module.exports=e():"function"==typeof define&&define.amd?define(e):t.Spinner=e()})(this,function(){"use strict";function t(t,e){var i,n=document.createElement(t||"div");for(i in e)n[i]=e[i];return n}function e(t){for(var e=1,i=arguments.length;i>e;e++)t.appendChild(arguments[e]);return t}function i(t,e,i,n){var r=["opacity",e,~~(100*t),i,n].join("-"),o=.01+100*(i/n),a=Math.max(1-(1-t)/e*(100-o),t),s=u.substring(0,u.indexOf("Animation")).toLowerCase(),l=s&&"-"+s+"-"||"";return c[r]||(p.insertRule("@"+l+"keyframes "+r+"{"+"0%{opacity:"+a+"}"+o+"%{opacity:"+t+"}"+(o+.01)+"%{opacity:1}"+(o+e)%100+"%{opacity:"+t+"}"+"100%{opacity:"+a+"}"+"}",p.cssRules.length),c[r]=1),r}function n(t,e){var i,n,r=t.style;for(e=e.charAt(0).toUpperCase()+e.slice(1),n=0;d.length>n;n++)if(i=d[n]+e,void 0!==r[i])return i;return void 0!==r[e]?e:void 0}function r(t,e){for(var i in e)t.style[n(t,i)||i]=e[i];return t}function o(t){for(var e=1;arguments.length>e;e++){var i=arguments[e];for(var n in i)void 0===t[n]&&(t[n]=i[n])}return t}function a(t,e){return"string"==typeof t?t:t[e%t.length]}function s(t){this.opts=o(t||{},s.defaults,f)}function l(){function i(e,i){return t("<"+e+' xmlns="urn:schemas-microsoft.com:vml" class="spin-vml">',i)}p.addRule(".spin-vml","behavior:url(#default#VML)"),s.prototype.lines=function(t,n){function o(){return r(i("group",{coordsize:d+" "+d,coordorigin:-u+" "+-u}),{width:d,height:d})}function s(t,s,l){e(p,e(r(o(),{rotation:360/n.lines*t+"deg",left:~~s}),e(r(i("roundrect",{arcsize:n.corners}),{width:u,height:n.width,left:n.radius,top:-n.width>>1,filter:l}),i("fill",{color:a(n.color,t),opacity:n.opacity}),i("stroke",{opacity:0}))))}var l,u=n.length+n.width,d=2*u,c=2*-(n.width+n.length)+"px",p=r(o(),{position:"absolute",top:c,left:c});if(n.shadow)for(l=1;n.lines>=l;l++)s(l,-2,"progid:DXImageTransform.Microsoft.Blur(pixelradius=2,makeshadow=1,shadowopacity=.3)");for(l=1;n.lines>=l;l++)s(l);return e(t,p)},s.prototype.opacity=function(t,e,i,n){var r=t.firstChild;n=n.shadow&&n.lines||0,r&&r.childNodes.length>e+n&&(r=r.childNodes[e+n],r=r&&r.firstChild,r=r&&r.firstChild,r&&(r.opacity=i))}}var u,d=["webkit","Moz","ms","O"],c={},p=function(){var i=t("style",{type:"text/css"});return e(document.getElementsByTagName("head")[0],i),i.sheet||i.styleSheet}(),f={lines:12,length:7,width:5,radius:10,rotate:0,corners:1,color:"#000",direction:1,speed:1,trail:100,opacity:.25,fps:20,zIndex:2e9,className:"spinner",top:"50%",left:"50%",position:"absolute"};s.defaults={},o(s.prototype,{spin:function(e){this.stop();var i=this,n=i.opts,o=i.el=r(t(0,{className:n.className}),{position:n.position,width:0,zIndex:n.zIndex});if(n.radius+n.length+n.width,r(o,{left:n.left,top:n.top}),e&&e.insertBefore(o,e.firstChild||null),o.setAttribute("role","progressbar"),i.lines(o,i.opts),!u){var a,s=0,l=(n.lines-1)*(1-n.direction)/2,d=n.fps,c=d/n.speed,p=(1-n.opacity)/(c*n.trail/100),f=c/n.lines;(function h(){s++;for(var t=0;n.lines>t;t++)a=Math.max(1-(s+(n.lines-t)*f)%c*p,n.opacity),i.opacity(o,t*n.direction+l,a,n);i.timeout=i.el&&setTimeout(h,~~(1e3/d))})()}return i},stop:function(){var t=this.el;return t&&(clearTimeout(this.timeout),t.parentNode&&t.parentNode.removeChild(t),this.el=void 0),this},lines:function(n,o){function s(e,i){return r(t(),{position:"absolute",width:o.length+o.width+"px",height:o.width+"px",background:e,boxShadow:i,transformOrigin:"left",transform:"rotate("+~~(360/o.lines*d+o.rotate)+"deg) translate("+o.radius+"px"+",0)",borderRadius:(o.corners*o.width>>1)+"px"})}for(var l,d=0,c=(o.lines-1)*(1-o.direction)/2;o.lines>d;d++)l=r(t(),{position:"absolute",top:1+~(o.width/2)+"px",transform:o.hwaccel?"translate3d(0,0,0)":"",opacity:o.opacity,animation:u&&i(o.opacity,o.trail,c+d*o.direction,o.lines)+" "+1/o.speed+"s linear infinite"}),o.shadow&&e(l,r(s("#000","0 0 4px #000"),{top:"2px"})),e(n,e(l,s(a(o.color,d),"0 0 1px rgba(0,0,0,.1)")));return n},opacity:function(t,e,i){t.childNodes.length>e&&(t.childNodes[e].style.opacity=i)}});var h=r(t("group"),{behavior:"url(#default#VML)"});return!n(h,"transform")&&h.adj?l():u=n(h,"animation"),s});