1 2 3 var Ajax = function() {4 5 this._xhr = null;6 this.url = '';7 this.method = 'GET';8 this.async = true;9 this.retries = 3;10 this.timeout = 4000; // milliseconds11 this.data = null;12 this.callbacks = ({13 progress:null,14 done:null,15 error:null,16 presend:null17 });18 19 };20 21 Ajax.prototype.send = function(data) {22 this.data = data;23 var that = this;24 25 function go() {26 that._xhr = new XMLHttpRequest();27 that._xhr.open(that.method, that.url, that.async);28 that._xhr.onreadystatechange = function(event) {29 if (that._xhr.readyState == XMLHttpRequest.DONE) {30 if (null != that.callbacks.done) {31 that.callbacks.done(that._xhr);32 }33 }34 };35 36 if (null != that.callbacks.presend)37 that.callbacks.presend(that._xhr);38 that._xhr.send(data);39 logger.log({'retries left':that.retries}); logger.show();40 };41 42 43 var timer = function() {44 that.retries--;45 if (that.retries >0) { // Retry46 alert(that._xhr.state);47 if (that._xhr.state == 0) {48 that._xhr.abort();49 go();50 setTimeout(timer, that.timeout);51 }52 } else { // Throw error53 that._xhr.abort();54 logger.log('timeout');55 }56 };57 58 go();59 setTimeout(timer, that.timeout);60 61 62 63 /*64 void send();65 void send(ArrayBuffer data);66 void send(Blob data);67 void send(Document data);68 void send(DOMString? data);69 void send(FormData data);70 */71 72 73 74 };75 76 Ajax.prototype.abort = function() {77 this._xhr.abort();78 };79 80 81 82 window.addEventListener('load', function(e){83 var a = new Ajax();84 a.url = 'http://www.treeweb.es/request2';85 a.callbacks.done = function(xhr) {86 logger.log(xhr);87 logger.show();88 };89 a.send();90 }, true);91 92 93 94 Este ShareCode tiene versiones:
- Ajax Refactor ... (14/12/2012)
- Ajax Refactor ... (24/04/2013)
- Ajax Refactor ... (24/04/2013)
- Ajax Refactor ... (24/04/2013)
- Ajax Refactor ... (24/04/2013)
- Ajax Refactor ... (24/04/2013)
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