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