2 lines
8.7 KiB
JavaScript
2 lines
8.7 KiB
JavaScript
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/*! offline 0.4.7 */
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(function(){var a,b,c,d,e,f,g;d=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},a={},null==a.options&&(a.options={}),c={checks:{xhr:{url:function(){return"/offline-test-request/"+Math.floor(1e9*Math.random())}},image:{url:function(){return"https://dqakt69vkj09v.cloudfront.net/are-we-online.gif?_="+Math.floor(1e9*Math.random())}},active:"image"},checkOnLoad:!1,interceptRequests:!0,reconnect:!0},e=function(a,b){var c,d,e,f,g,h;for(c=a,f=b.split("."),d=g=0,h=f.length;h>g&&(e=f[d],c=c[e],"object"==typeof c);d=++g);return d===f.length-1?c:void 0},a.getOption=function(b){var d,f;return d=null!=(f=e(a.options,b))?f:e(c,b),"function"==typeof d?d():d},"function"==typeof window.addEventListener&&window.addEventListener("online",function(){return setTimeout(a.confirmUp,100)},!1),"function"==typeof window.addEventListener&&window.addEventListener("offline",function(){return a.confirmDown()},!1),a.state="up",a.markUp=function(){return a.trigger("confirmed-up"),"up"!==a.state?(a.state="up",a.trigger("up")):void 0},a.markDown=function(){return a.trigger("confirmed-down"),"down"!==a.state?(a.state="down",a.trigger("down")):void 0},f={},a.on=function(b,c,d){var e,g,h,i,j;if(g=b.split(" "),g.length>1){for(j=[],h=0,i=g.length;i>h;h++)e=g[h],j.push(a.on(e,c,d));return j}return null==f[b]&&(f[b]=[]),f[b].push([d,c])},a.off=function(a,b){var c,d,e,g,h;if(null!=f[a]){if(b){for(d=0,h=[];d<f[a].length;)g=f[a][d],c=g[0],e=g[1],e===b?h.push(f[a].splice(d,1)):h.push(d++);return h}return f[a]=[]}},a.trigger=function(a){var b,c,d,e,g,h,i;if(null!=f[a]){for(g=f[a],i=[],d=0,e=g.length;e>d;d++)h=g[d],b=h[0],c=h[1],i.push(c.call(b));return i}},b=function(a,b,c){var d,e;return d=function(){return a.status&&a.status<12e3?b():c()},null===a.onprogress?(a.addEventListener("error",c,!1),a.addEventListener("timeout",c,!1),a.addEventListener("load",d,!1)):(e=a.onreadystatechange,a.onreadystatechange=function(){return 4===a.readyState?d():0===a.readyState&&c(),"function"==typeof e?e.apply(null,arguments):void 0})},a.checks={},a.checks.xhr=function(){var c,d;d=new XMLHttpRequest,d.offline=!1,d.open("HEAD",a.getOption("checks.xhr.url"),!0),b(d,a.markUp,a.markDown);try{d.send()}catch(e){c=e,a.markDown()}return d},a.checks.image=function(){var b;return b=document.createElement("img"),b.onerror=a.markDown,b.onload=a.markUp,b.src=a.getOption("checks.image.url"),void 0},a.check=function(){return a.trigger("checking"),a.checks[a.getOption("checks.active")]()},a.confirmUp=a.confirmDown=a.check,a.onXHR=function(a){var b,c,e;return b=function(b,c){var d;return d=b.open,b.open=function(e,f,g,h,i){return a({type:e,url:f,async:g,flags:c,user:h,password:i,xhr:b}),d.apply(b,arguments)}},e=window.XMLHttpRequest,window.XMLHttpRequest=function(a){var c,d,f;return c=new e(a),b(c,a),f=c.setRequestHeader,c.headers={},c.setRequestHeader=function(a,b){return c.headers[a]=b,f.call(c,a,b)},d=c.overrideMimeType,c.overrideMimeType=function(a){return c.mimeType=a,d.call(c,a)},c},d(window.XMLHttpRequest,e),null!=window.XDomainRequest?(c=window.XDomainRequest,window.XDomainRequest=function(){var a;return a=new c,b(a),a},d(window.XDomainRequest,c)):void 0},g=function(){return a.getOption("interceptRequests")&&a.onXHR(function(c){var d;return d=c.xhr,d.offline!==!1?b(d,a.confirmUp,a.confirmDown):void 0}),a.getOption("checkOnLoad")?a.check():void 0},setTimeout(g,0),window.Offline=a}).call(this),function(){var a,b,c,d,e,f,g,h,i;if(!window.Offline)throw new Error("Offline Reconnect brought in without offline.js");d=Offline.reconnect={},f=null,e=function(){var a;return null!=d.state&&"inactive"!==d.state&&Offline.trigger("reconnect:stopped"),d.state="inactive",d.remaining=d.delay=null!=(a=Offline.getOption("reconnect.initialDelay"))?a:3},b=function(){var a,b;return a=null!=(b=Offline.getOption("reconnect.delay"))?b:Math.min(Math.ceil(1.5*d.delay),3600),d.remaining=d.delay=a},g=function(){return"connecting"!==d.state?(d.remaining-=1,Offline.trigger("reconnect:tick"),0===d.remaining?h():void
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