X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=src%2Fajax%2Fxhr.js;h=91a71de8d6aba61add0ebcb70f1bc4bc69e647ac;hb=4d808a3345f78fab963be96bf272951745b894e3;hp=d4c291fcbb17f21b9e03f2fa5c8fbe14c2979d6f;hpb=d77a2a2274d34033da8609a26c9cc1f2bd14c879;p=jquery.git diff --git a/src/ajax/xhr.js b/src/ajax/xhr.js index d4c291f..91a71de 100644 --- a/src/ajax/xhr.js +++ b/src/ajax/xhr.js @@ -1,5 +1,18 @@ (function( jQuery ) { +// Functions to create xhrs +function createStandardXHR() { + try { + return new window.XMLHttpRequest(); + } catch( e ) {} +} + +function createActiveXHR() { + try { + return new window.ActiveXObject("Microsoft.XMLHTTP"); + } catch( e ) {} +} + var // Next active xhr id xhrId = jQuery.now(), @@ -22,27 +35,13 @@ jQuery.ajaxSettings.xhr = window.ActiveXObject ? * we need a fallback. */ function() { - if ( !jQuery.ajaxSettings.isLocal ) { - try { - return new window.XMLHttpRequest(); - } catch( xhrError ) {} - } - - try { - return new window.ActiveXObject("Microsoft.XMLHTTP"); - } catch( activeError ) {} + return !this.isLocal && createStandardXHR() || createActiveXHR(); } : // For all other browsers, use the standard XMLHttpRequest object - function() { - return new window.XMLHttpRequest(); - }; + createStandardXHR; // Test if we can create an xhr object -try { - testXHR = jQuery.ajaxSettings.xhr(); -} catch( xhrCreationException ) {} - -//Does this browser support XHR requests? +testXHR = jQuery.ajaxSettings.xhr(); jQuery.support.ajax = !!testXHR; // Does this browser support crossDomain XHR requests @@ -85,13 +84,6 @@ if ( jQuery.support.ajax ) { handle, i; - // Apply custom fields if provided - if ( s.xhrFields ) { - for ( i in s.xhrFields ) { - xhr[ i ] = s.xhrFields[ i ]; - } - } - // Open the socket // Passing null username, generates a login popup on Opera (#2865) if ( s.username ) { @@ -100,6 +92,13 @@ if ( jQuery.support.ajax ) { xhr.open( s.type, s.url, s.async ); } + // Apply custom fields if provided + if ( s.xhrFields ) { + for ( i in s.xhrFields ) { + xhr[ i ] = s.xhrFields[ i ]; + } + } + // Requested-With header // Not set for crossDomain requests with no content // (see why at http://trac.dojotoolkit.org/ticket/9486) @@ -189,13 +188,14 @@ if ( jQuery.support.ajax ) { // for errors, could be anything really (even a real 0) status = 302; } - // All same-domain - #8125, #8152: for local files, 0 is a success + // All same-domain: for local files, 0 is a success } else if( s.isLocal ) { status = 200; + // Opera: this notifies success for all requests + // (verified in 11.01). Patch welcome. } // Opera - #6060: sets status as 0 for 304 - // and there doesn't seem to be any way to - // detect this case. Patch VERY welcome. + // Patch welcome. } } }