spin.min.js 4.0 KB

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