lib/dojo/request/xhr.js

   1 /*
   2         Copyright (c) 2004-2012, The Dojo Foundation All Rights Reserved.
   3         Available via Academic Free License >= 2.1 OR the modified BSD license.
   4         see: http://dojotoolkit.org/license for details
   5 */
   6
   7 //>>built
   8 define("dojo/request/xhr",["../errors/RequestError","./watch","./handlers","./util","../has"],function(_1,_2,_3,_4,_5){_5.add("native-xhr",function(){return typeof XMLHttpRequest!=="undefined";});_5.add("dojo-force-activex-xhr",function(){return _5("activex")&&!document.addEventListener&&window.location.protocol==="file:";});_5.add("native-xhr2",function(){if(!_5("native-xhr")){return;}var x=new XMLHttpRequest();return typeof x["addEventListener"]!=="undefined"&&(typeof opera==="undefined"||typeof x["upload"]!=="undefined");});_5.add("native-formdata",function(){return typeof FormData==="function";});function _6(_7,_8){var _9=_7.xhr;_7.status=_7.xhr.status;_7.text=_9.responseText;if(_7.options.handleAs==="xml"){_7.data=_9.responseXML;}if(!_8){try{_3(_7);}catch(e){_8=e;}}if(_8){this.reject(_8);}else{if(_4.checkStatus(_9.status)){this.resolve(_7);}else{_8=new _1("Unable to load "+_7.url+" status: "+_9.status,_7);this.reject(_8);}}};var _a,_b,_c,_d;if(_5("native-xhr2")){_a=function(_e){return !this.isFulfilled();};_d=function(_f,_10){_10.xhr.abort();};_c=function(_11,dfd,_12){function _13(evt){dfd.handleResponse(_12);};function _14(evt){var _15=evt.target;var _16=new _1("Unable to load "+_12.url+" status: "+_15.status,_12);dfd.handleResponse(_12,_16);};function _17(evt){if(evt.lengthComputable){_12.loaded=evt.loaded;_12.total=evt.total;dfd.progress(_12);}};_11.addEventListener("load",_13,false);_11.addEventListener("error",_14,false);_11.addEventListener("progress",_17,false);return function(){_11.removeEventListener("load",_13,false);_11.removeEventListener("error",_14,false);_11.removeEventListener("progress",_17,false);};};}else{_a=function(_18){return _18.xhr.readyState;};_b=function(_19){return 4===_19.xhr.readyState;};_d=function(dfd,_1a){var xhr=_1a.xhr;var _1b=typeof xhr.abort;if(_1b==="function"||_1b==="object"||_1b==="unknown"){xhr.abort();}};}var _1c,_1d={data:null,query:null,sync:false,method:"GET",headers:{"Content-Type":"application/x-www-form-urlencoded"}};function xhr(url,_1e,_1f){var _20=_4.parseArgs(url,_4.deepCreate(_1d,_1e),_5("native-formdata")&&_1e&&_1e.data&&_1e.data instanceof FormData);url=_20.url;_1e=_20.options;var _21,_22=function(){_21&&_21();};var dfd=_4.deferred(_20,_d,_a,_b,_6,_22);var _23=_20.xhr=xhr._create();if(!_23){dfd.cancel(new _1("XHR was not created"));return _1f?dfd:dfd.promise;}_20.getHeader=function(_24){return this.xhr.getResponseHeader(_24);};if(_c){_21=_c(_23,dfd,_20);}var _25=_1e.data,_26=!_1e.sync,_27=_1e.method;try{_23.open(_27,url,_26,_1e.user||_1c,_1e.password||_1c);if(_1e.withCredentials){_23.withCredentials=_1e.withCredentials;}var _28=_1e.headers,_29;if(_28){for(var hdr in _28){if(hdr.toLowerCase()==="content-type"){_29=_28[hdr];}else{if(_28[hdr]){_23.setRequestHeader(hdr,_28[hdr]);}}}}if(_29&&_29!==false){_23.setRequestHeader("Content-Type",_29);}if(!_28||!("X-Requested-With" in _28)){_23.setRequestHeader("X-Requested-With","XMLHttpRequest");}if(_4.notify){_4.notify.emit("send",_20,dfd.promise.cancel);}_23.send(_25);}catch(e){dfd.reject(e);}_2(dfd);_23=null;return _1f?dfd:dfd.promise;};xhr._create=function(){throw new Error("XMLHTTP not available");};if(_5("native-xhr")&&!_5("dojo-force-activex-xhr")){xhr._create=function(){return new XMLHttpRequest();};}else{if(_5("activex")){try{new ActiveXObject("Msxml2.XMLHTTP");xhr._create=function(){return new ActiveXObject("Msxml2.XMLHTTP");};}catch(e){try{new ActiveXObject("Microsoft.XMLHTTP");xhr._create=function(){return new ActiveXObject("Microsoft.XMLHTTP");};}catch(e){}}}}_4.addCommonMethods(xhr);return xhr;});