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pace.min.js

pace.min.js 12 KB
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123 
  1. /*! pace 0.5.1 */
    2. 

  2. (function(){var a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W=[].slice,X={}.hasOwnProperty,Y=function(a,b){function c(){this.constructor=a}for(var d in b)X.call(b,d)&&(a[d]=b[d]);return c.prototype=b.prototype,a.prototype=new c,a.__super__=b.prototype,a},Z=[].indexOf||function(a){for(var b=0,c=this.length;c>b;b++)if(b in this&&this[b]===a)return b;return-1};for(t={catchupTime:500,initialRate:.03,minTime:500,ghostTime:500,maxProgressPerFrame:10,easeFactor:1.25,startOnPageLoad:!0,restartOnPushState:!0,restartOnRequestAfter:500,target:"body",elements:{checkInterval:100,selectors:["body"]},eventLag:{minSamples:10,sampleCount:3,lagThreshold:3},ajax:{trackMethods:["GET"],trackWebSockets:!0,ignoreURLs:[]}},B=function(){var a;return null!=(a="undefined"!=typeof performance&&null!==performance?"function"==typeof performance.now?performance.now():void 0:void 0)?a:+new Date},D=window.requestAnimationFrame||window.mozRequestAnimationFrame||window.webkitRequestAnimationFrame||window.msRequestAnimationFrame,s=window.cancelAnimationFrame||window.mozCancelAnimationFrame,null==D&&(D=function(a){return setTimeout(a,50)},s=function(a){return clearTimeout(a)}),F=function(a){var b,c;return b=B(),(c=function(){var d;return d=B()-b,d>=33?(b=B(),a(d,function(){return D(c)})):setTimeout(c,33-d)})()},E=function(){var a,b,c;return c=arguments[0],b=arguments[1],a=3<=arguments.length?W.call(arguments,2):[],"function"==typeof c[b]?c[b].apply(c,a):c[b]},u=function(){var a,b,c,d,e,f,g;for(b=arguments[0],d=2<=arguments.length?W.call(arguments,1):[],f=0,g=d.length;g>f;f++)if(c=d[f])for(a in c)X.call(c,a)&&(e=c[a],null!=b[a]&&"object"==typeof b[a]&&null!=e&&"object"==typeof e?u(b[a],e):b[a]=e);return b},p=function(a){var b,c,d,e,f;for(c=b=0,e=0,f=a.length;f>e;e++)d=a[e],c+=Math.abs(d),b++;return c/b},w=function(a,b){var c,d,e;if(null==a&&(a="options"),null==b&&(b=!0),e=document.querySelector("[data-pace-"+a+"]")){if(c=e.getAttribute("data-pace-"+a),!b)return c;try{return JSON.parse(c)}catch(f){return d=f,"undefined"!=typeof console&&null!==console?console.error("Error parsing inline pace options",d):void 0}}},g=function(){function a(){}return a.prototype.on=function(a,b,c,d){var e;return null==d&&(d=!1),null==this.bindings&&(this.bindings={}),null==(e=this.bindings)[a]&&(e[a]=[]),this.bindings[a].push({handler:b,ctx:c,once:d})},a.prototype.once=function(a,b,c){return this.on(a,b,c,!0)},a.prototype.off=function(a,b){var c,d,e;if(null!=(null!=(d=this.bindings)?d[a]:void 0)){if(null==b)return delete this.bindings[a];for(c=0,e=[];c<this.bindings[a].length;)this.bindings[a][c].handler===b?e.push(this.bindings[a].splice(c,1)):e.push(c++);return e}},a.prototype.trigger=function(){var a,b,c,d,e,f,g,h,i;if(c=arguments[0],a=2<=arguments.length?W.call(arguments,1):[],null!=(g=this.bindings)?g[c]:void 0){for(e=0,i=[];e<this.bindings[c].length;)h=this.bindings[c][e],d=h.handler,b=h.ctx,f=h.once,d.apply(null!=b?b:this,a),f?i.push(this.bindings[c].splice(e,1)):i.push(e++);return i}},a}(),null==window.Pace&&(window.Pace={}),u(Pace,g.prototype),C=Pace.options=u({},t,window.paceOptions,w()),T=["ajax","document","eventLag","elements"],P=0,R=T.length;R>P;P++)J=T[P],C[J]===!0&&(C[J]=t[J]);i=function(a){function b(){return U=b.__super__.constructor.apply(this,arguments)}return Y(b,a),b}(Error),b=function(){function a(){this.progress=0}return a.prototype.getElement=function(){var a;if(null==this.el){if(a=document.querySelector(C.target),!a)throw new i;this.el=document.createElement("div"),this.el.className="pace pace-active",document.body.className=document.body.className.replace(/pace-done/g,""),document.body.className+=" pace-running",this.el.innerHTML='<div class="pace-progress">\n  <div class="pace-progress-inner"></div>\n</div>\n<div class="pace-activity"></div>',null!=a.firstChild?a.insertBefore(this.el,a.firstChild):a.appendChild(this.el)}return this.el},a.prototype.finish=function(){var a;return a=this.getElement(),a.className=a.className.replace("pace-active",""),a.className+=" pace-inactive",document.body.className=document.body.className.replace("pace-running",""),document.body.className+=" pace-done"},a.prototype.update=function(a){return this.progress=a,this.render()},a.prototype.destroy=function(){try{this.getElement().parentNode.removeChild(this.getElement())}catch(a){i=a}return this.el=void 0},a.prototype.render=function(){var a,b;return null==document.querySelector(C.target)?!1:(a=this.getElement(),a.children[0].style.width=""+this.progress+"%",(!this.lastRenderedProgress||this.lastRenderedProgress|0!==this.progress|0)&&(a.children[0].setAttribute("data-progress-text",""+(0|this.progress)+"%"),this.progress>=100?b="99":(b=this.progress<10?"0":"",b+=0|this.progress),a.children[0].setAttribute("data-progress",""+b)),this.lastRenderedProgress=this.progress)},a.prototype.done=function(){return this.progress>=100},a}(),h=function(){function a(){this.bindings={}}return a.prototype.trigger=function(a,b){var c,d,e,f,g;if(null!=this.bindings[a]){for(f=this.bindings[a],g=[],d=0,e=f.length;e>d;d++)c=f[d],g.push(c.call(this,b));return g}},a.prototype.on=function(a,b){var c;return null==(c=this.bindings)[a]&&(c[a]=[]),this.bindings[a].push(b)},a}(),O=window.XMLHttpRequest,N=window.XDomainRequest,M=window.WebSocket,v=function(a,b){var c,d,e,f;f=[];for(d in b.prototype)try{e=b.prototype[d],null==a[d]&&"function"!=typeof e?f.push(a[d]=e):f.push(void 0)}catch(g){c=g}return f},z=[],Pace.ignore=function(){var a,b,c;return b=arguments[0],a=2<=arguments.length?W.call(arguments,1):[],z.unshift("ignore"),c=b.apply(null,a),z.shift(),c},Pace.track=function(){var a,b,c;return b=arguments[0],a=2<=arguments.length?W.call(arguments,1):[],z.unshift("track"),c=b.apply(null,a),z.shift(),c},I=function(a){var b;if(null==a&&(a="GET"),"track"===z[0])return"force";if(!z.length&&C.ajax){if("socket"===a&&C.ajax.trackWebSockets)return!0;if(b=a.toUpperCase(),Z.call(C.ajax.trackMethods,b)>=0)return!0}return!1},j=function(a){function b(){var a,c=this;b.__super__.constructor.apply(this,arguments),a=function(a){var b;return b=a.open,a.open=function(d,e){return I(d)&&c.trigger("request",{type:d,url:e,request:a}),b.apply(a,arguments)}},window.XMLHttpRequest=function(b){var c;return c=new O(b),a(c),c},v(window.XMLHttpRequest,O),null!=N&&(window.XDomainRequest=function(){var b;return b=new N,a(b),b},v(window.XDomainRequest,N)),null!=M&&C.ajax.trackWebSockets&&(window.WebSocket=function(a,b){var d;return d=null!=b?new M(a,b):new M(a),I("socket")&&c.trigger("request",{type:"socket",url:a,protocols:b,request:d}),d},v(window.WebSocket,M))}return Y(b,a),b}(h),Q=null,x=function(){return null==Q&&(Q=new j),Q},H=function(a){var b,c,d,e;for(e=C.ajax.ignoreURLs,c=0,d=e.length;d>c;c++)if(b=e[c],"string"==typeof b){if(-1!==a.indexOf(b))return!0}else if(b.test(a))return!0;return!1},x().on("request",function(b){var c,d,e,f,g;return f=b.type,e=b.request,g=b.url,H(g)?void 0:Pace.running||C.restartOnRequestAfter===!1&&"force"!==I(f)?void 0:(d=arguments,c=C.restartOnRequestAfter||0,"boolean"==typeof c&&(c=0),setTimeout(function(){var b,c,g,h,i,j;if(b="socket"===f?e.readyState<2:0<(h=e.readyState)&&4>h){for(Pace.restart(),i=Pace.sources,j=[],c=0,g=i.length;g>c;c++){if(J=i[c],J instanceof a){J.watch.apply(J,d);break}j.push(void 0)}return j}},c))}),a=function(){function a(){var a=this;this.elements=[],x().on("request",function(){return a.watch.apply(a,arguments)})}return a.prototype.watch=function(a){var b,c,d,e;return d=a.type,b=a.request,e=a.url,H(e)?void 0:(c="socket"===d?new m(b):new n(b),this.elements.push(c))},a}(),n=function(){function a(a){var b,c,d,e,f,g,h=this;if(this.progress=0,null!=window.ProgressEvent)for(c=null,a.addEventListener("progress",function(a){return h.progress=a.lengthComputable?100*a.loaded/a.total:h.progress+(100-h.progress)/2}),g=["load","abort","timeout","error"],d=0,e=g.length;e>d;d++)b=g[d],a.addEventListener(b,function(){return h.progress=100});else f=a.onreadystatechange,a.onreadystatechange=function(){var b;return 0===(b=a.readyState)||4===b?h.progress=100:3===a.readyState&&(h.progress=50),"function"==typeof f?f.apply(null,arguments):void 0}}return a}(),m=function(){function a(a){var b,c,d,e,f=this;for(this.progress=0,e=["error","open"],c=0,d=e.length;d>c;c++)b=e[c],a.addEventListener(b,function(){return f.progress=100})}return a}(),d=function(){function a(a){var b,c,d,f;for(null==a&&(a={}),this.elements=[],null==a.selectors&&(a.selectors=[]),f=a.selectors,c=0,d=f.length;d>c;c++)b=f[c],this.elements.push(new e(b))}return a}(),e=function(){function a(a){this.selector=a,this.progress=0,this.check()}return a.prototype.check=function(){var a=this;return document.querySelector(this.selector)?this.done():setTimeout(function(){return a.check()},C.elements.checkInterval)},a.prototype.done=function(){return this.progress=100},a}(),c=function(){function a(){var a,b,c=this;this.progress=null!=(b=this.states[document.readyState])?b:100,a=document.onreadystatechange,document.onreadystatechange=function(){return null!=c.states[document.readyState]&&(c.progress=c.states[document.readyState]),"function"==typeof a?a.apply(null,arguments):void 0}}return a.prototype.states={loading:0,interactive:50,complete:100},a}(),f=function(){function a(){var a,b,c,d,e,f=this;this.progress=0,a=0,e=[],d=0,c=B(),b=setInterval(function(){var g;return g=B()-c-50,c=B(),e.push(g),e.length>C.eventLag.sampleCount&&e.shift(),a=p(e),++d>=C.eventLag.minSamples&&a<C.eventLag.lagThreshold?(f.progress=100,clearInterval(b)):f.progress=100*(3/(a+3))},50)}return a}(),l=function(){function a(a){this.source=a,this.last=this.sinceLastUpdate=0,this.rate=C.initialRate,this.catchup=0,this.progress=this.lastProgress=0,null!=this.source&&(this.progress=E(this.source,"progress"))}return a.prototype.tick=function(a,b){var c;return null==b&&(b=E(this.source,"progress")),b>=100&&(this.done=!0),b===this.last?this.sinceLastUpdate+=a:(this.sinceLastUpdate&&(this.rate=(b-this.last)/this.sinceLastUpdate),this.catchup=(b-this.progress)/C.catchupTime,this.sinceLastUpdate=0,this.last=b),b>this.progress&&(this.progress+=this.catchup*a),c=1-Math.pow(this.progress/100,C.easeFactor),this.progress+=c*this.rate*a,this.progress=Math.min(this.lastProgress+C.maxProgressPerFrame,this.progress),this.progress=Math.max(0,this.progress),this.progress=Math.min(100,this.progress),this.lastProgress=this.progress,this.progress},a}(),K=null,G=null,q=null,L=null,o=null,r=null,Pace.running=!1,y=function(){return C.restartOnPushState?Pace.restart():void 0},null!=window.history.pushState&&(S=window.history.pushState,window.history.pushState=function(){return y(),S.apply(window.history,arguments)}),null!=window.history.replaceState&&(V=window.history.replaceState,window.history.replaceState=function(){return y(),V.apply(window.history,arguments)}),k={ajax:a,elements:d,document:c,eventLag:f},(A=function(){var a,c,d,e,f,g,h,i;for(Pace.sources=K=[],g=["ajax","elements","document","eventLag"],c=0,e=g.length;e>c;c++)a=g[c],C[a]!==!1&&K.push(new k[a](C[a]));for(i=null!=(h=C.extraSources)?h:[],d=0,f=i.length;f>d;d++)J=i[d],K.push(new J(C));return Pace.bar=q=new b,G=[],L=new l})(),Pace.stop=function(){return Pace.trigger("stop"),Pace.running=!1,q.destroy(),r=!0,null!=o&&("function"==typeof s&&s(o),o=null),A()},Pace.restart=function(){return Pace.trigger("restart"),Pace.stop(),Pace.start()},Pace.go=function(){var a;return Pace.running=!0,q.render(),a=B(),r=!1,o=F(function(b,c){var d,e,f,g,h,i,j,k,m,n,o,p,s,t,u,v;for(k=100-q.progress,e=o=0,f=!0,i=p=0,t=K.length;t>p;i=++p)for(J=K[i],n=null!=G[i]?G[i]:G[i]=[],h=null!=(v=J.elements)?v:[J],j=s=0,u=h.length;u>s;j=++s)g=h[j],m=null!=n[j]?n[j]:n[j]=new l(g),f&=m.done,m.done||(e++,o+=m.tick(b));return d=o/e,q.update(L.tick(b,d)),q.done()||f||r?(q.update(100),Pace.trigger("done"),setTimeout(function(){return q.finish(),Pace.running=!1,Pace.trigger("hide")},Math.max(C.ghostTime,Math.max(C.minTime-(B()-a),0)))):c()})},Pace.start=function(a){u(C,a),Pace.running=!0;try{q.render()}catch(b){i=b}return document.querySelector(".pace")?(Pace.trigger("start"),Pace.go()):setTimeout(Pace.start,50)},"function"==typeof define&&define.amd?define(function(){return Pace}):"object"==typeof exports?module.exports=Pace:C.startOnPageLoad&&Pace.start()}).call(this);
    3. 

  3.