nprogress.js

;(function(root,factory) {if(typeof define==='function'&&define.amd) {define(factory);}else if(typeof exports==='object') {module.exports=factory();}else{root.NProgress=factory();}})(this,function() {var NProgress={};NProgress.version='0.2.0';var Settings=NProgress.settings={minimum:0.08,easing:'ease',positionUsing:'',speed:200,trickle:true,trickleRate:0.02,trickleSpeed:800,showSpinner:true,barSelector:'[role="bar"]',spinnerSelector:'[role="spinner"]',parent:'body',template:'<div class="bar" role="bar"><div class="peg"></div></div><div class="spinner" role="spinner"><div class="spinner-icon"></div></div>'};NProgress.configure=function(options) {var key,value;for(key in options) {value=options[key];if(value!==undefined&&options.hasOwnProperty(key))Settings[key]=value;}return this;};NProgress.status=null;NProgress.set=function(n) {var started=NProgress.isStarted();n=clamp(n,Settings.minimum,1);NProgress.status=(n===1?null:n);var progress=NProgress.render(!started),bar=progress.querySelector(Settings.barSelector),speed=Settings.speed,ease=Settings.easing;progress.offsetWidth;queue(function(next) {if(Settings.positionUsing==='')Settings.positionUsing=NProgress.getPositioningCSS();css(bar,barPositionCSS(n,speed,ease));if(n===1) {css(progress,{transition:'none',opacity:1});progress.offsetWidth;setTimeout(function() {css(progress,{transition:'all '+speed+'ms linear',opacity:0});setTimeout(function() {NProgress.remove();next();},speed);},speed);}else{setTimeout(next,speed);}});return this;};NProgress.isStarted=function() {return typeof NProgress.status==='number';};NProgress.start=function() {if(!NProgress.status)NProgress.set(0);var work=function() {setTimeout(function() {if(!NProgress.status)return;NProgress.trickle();work();},Settings.trickleSpeed);};if(Settings.trickle)work();return this;};NProgress.done=function(force) {if(!force&&!NProgress.status)return this;return NProgress.inc(0.3+0.5*Math.random()).set(1);};NProgress.inc=function(amount) {var n=NProgress.status;if(!n) {return NProgress.start();}else{if(typeof amount!=='number') {amount=(1-n)*clamp(Math.random()*n,0.1,0.95);}n=clamp(n+amount,0,0.994);return NProgress.set(n);}};NProgress.trickle=function() {return NProgress.inc(Math.random()*Settings.trickleRate);};(function() {var initial=0,current=0;NProgress.promise=function($promise) {if(!$promise||$promise.state()==="resolved") {return this;}if(current===0) {NProgress.start();}initial++;current++;$promise.always(function() {current--;if(current===0) {initial=0;NProgress.done();}else{NProgress.set((initial-current)/initial);}});return this;};})();NProgress.render=function(fromStart) {if(NProgress.isRendered())return document.getElementById('nprogress');addClass(document.documentElement,'nprogress-busy');var progress=document.createElement('div');progress.id='nprogress';progress.innerHTML=Settings.template;var bar=progress.querySelector(Settings.barSelector),perc=fromStart?'-100':toBarPerc(NProgress.status||0),parent=document.querySelector(Settings.parent),spinner;css(bar,{transition:'all 0 linear',transform:'translate3d('+perc+'%,0,0)'});if(!Settings.showSpinner) {spinner=progress.querySelector(Settings.spinnerSelector);spinner&&removeElement(spinner);}if(parent!=document.body) {addClass(parent,'nprogress-custom-parent');}parent.appendChild(progress);return progress;};NProgress.remove=function() {removeClass(document.documentElement,'nprogress-busy');removeClass(document.querySelector(Settings.parent),'nprogress-custom-parent');var progress=document.getElementById('nprogress');progress&&removeElement(progress);};NProgress.isRendered=function() {return!!document.getElementById('nprogress');};NProgress.getPositioningCSS=function() {var bodyStyle=document.body.style;var vendorPrefix=('WebkitTransform'in bodyStyle)?'Webkit':('MozTransform'in bodyStyle)?'Moz':('msTransform'in bodyStyle)?'ms':('OTransform'in bodyStyle)?'O':'';if(vendorPrefix+'Perspective'in bodyStyle) {return'translate3d';}else if(vendorPrefix+'Transform'in bodyStyle) {return'translate';}else{return'margin';}};function clamp(n,min,max) {if(n<min)return min;if(n>max)return max;return n;}function toBarPerc(n) {return(-1+n)*100;}function barPositionCSS(n,speed,ease) {var barCSS;if(Settings.positionUsing==='translate3d') {barCSS={transform:'translate3d('+toBarPerc(n)+'%,0,0)'};}else if(Settings.positionUsing==='translate') {barCSS={transform:'translate('+toBarPerc(n)+'%,0)'};}else{barCSS={'margin-left':toBarPerc(n)+'%'};}barCSS.transition='all '+speed+'ms '+ease;return barCSS;}var queue=(function() {var pending=[];function next() {var fn=pending.shift();if(fn) {fn(next);}}return function(fn) {pending.push(fn);if(pending.length==1)next();};})();var css=(function() {var cssPrefixes=['Webkit','O','Moz','ms'],cssProps={};function camelCase(string) {return string.replace(/^-ms-/,'ms-').replace(/-([\da-z])/gi,function(match,letter) {return letter.toUpperCase();});}function getVendorProp(name) {var style=document.body.style;if(name in style)return name;var i=cssPrefixes.length,capName=name.charAt(0).toUpperCase()+name.slice(1),vendorName;while(i--) {vendorName=cssPrefixes[i]+capName;if(vendorName in style)return vendorName;}return name;}function getStyleProp(name) {name=camelCase(name);return cssProps[name]||(cssProps[name]=getVendorProp(name));}function applyCss(element,prop,value) {prop=getStyleProp(prop);element.style[prop]=value;}return function(element,properties) {var args=arguments,prop,value;if(args.length==2) {for(prop in properties) {value=properties[prop];if(value!==undefined&&properties.hasOwnProperty(prop))applyCss(element,prop,value);}}else{applyCss(element,args[1],args[2]);}}})();function hasClass(element,name) {var list=typeof element=='string'?element:classList(element);return list.indexOf(' '+name+' ')>=0;}function addClass(element,name) {var oldList=classList(element),newList=oldList+name;if(hasClass(oldList,name))return;element.className=newList.substring(1);}function removeClass(element,name) {var oldList=classList(element),newList;if(!hasClass(element,name))return;newList=oldList.replace(' '+name+' ',' ');element.className=newList.substring(1,newList.length-1);}function classList(element) {return(' '+(element.className||'')+' ').replace(/\s+/gi,' ');}function removeElement(element) {element&&element.parentNode&&element.parentNode.removeChild(element);}return NProgress;});