X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=src%2Fajax%2Fajax.js;h=9d4e8b512862d21d10cbff4d3a26fd3a70878401;hb=6b8ffe79f4e616d6179f6b16099e7c25e7ae5cb1;hp=2c86812b34b48076c0ba423d68c586935d95f6b0;hpb=0f5292b991ee83ee956766d6a7eab75445dd4dea;p=jquery.git diff --git a/src/ajax/ajax.js b/src/ajax/ajax.js index 2c86812..9d4e8b5 100644 --- a/src/ajax/ajax.js +++ b/src/ajax/ajax.js @@ -207,7 +207,8 @@ if ( jQuery.browser.msie && typeof XMLHttpRequest == "undefined" ) * Attach a function to be executed whenever an AJAX request fails. * * The XMLHttpRequest and settings used for that request are passed - * as arguments to the callback. + * as arguments to the callback. A third argument, an exception object, + * is passed if an exception occured while processing the request. * * @example $("#msg").ajaxError(function(request, settings){ * $(this).append("
  • Error requesting page " + settings.url + "
  • "); @@ -480,8 +481,9 @@ jQuery.extend({ * like ajaxStart or ajaxStop are triggered. * * (Function) error - A function to be called if the request fails. The - * function gets passed two arguments: The XMLHttpRequest object and a - * string describing the type of error that occurred. + * function gets passed tree arguments: The XMLHttpRequest object, a + * string describing the type of error that occurred and an optional + * exception object, if one occured. * * (Function) success - A function to be called if the request succeeds. The * function gets passed one argument: The data returned from the server, @@ -618,40 +620,35 @@ jQuery.extend({ // The transfer is complete and the data is available, or the request timed out if ( xml && (xml.readyState == 4 || isTimeout == "timeout") ) { requestDone = true; - - var status = jQuery.httpSuccess( xml ) && isTimeout != "timeout" ? - s.ifModified && jQuery.httpNotModified( xml, s.url ) ? "notmodified" : "success" : "error"; - - // Make sure that the request was successful or notmodified - if ( status != "error" ) { - // Cache Last-Modified header, if ifModified mode. - var modRes; - try { - modRes = xml.getResponseHeader("Last-Modified"); - } catch(e) {} // swallow exception thrown by FF if header is not available - - if ( s.ifModified && modRes ) - jQuery.lastModified[s.url] = modRes; - - // process the data (runs the xml through httpData regardless of callback) - var data = jQuery.httpData( xml, s.dataType ); - - // If a local callback was specified, fire it and pass it the data - if ( s.success ) - s.success( data, status ); - - // Fire the global callback - if( s.global ) - jQuery.event.trigger( "ajaxSuccess", [xml, s] ); - - // Otherwise, the request was not successful - } else { - // If a local callback was specified, fire it - if ( s.error ) s.error( xml, status ); - - // Fire the global callback - if( s.global ) - jQuery.event.trigger( "ajaxError", [xml, s] ); + var status; + try { + status = jQuery.httpSuccess( xml ) && isTimeout != "timeout" ? + s.ifModified && jQuery.httpNotModified( xml, s.url ) ? "notmodified" : "success" : "error"; + // Make sure that the request was successful or notmodified + if ( status != "error" ) { + // Cache Last-Modified header, if ifModified mode. + var modRes; + try { + modRes = xml.getResponseHeader("Last-Modified"); + } catch(e) {} // swallow exception thrown by FF if header is not available + + if ( s.ifModified && modRes ) + jQuery.lastModified[s.url] = modRes; + + // process the data (runs the xml through httpData regardless of callback) + var data = jQuery.httpData( xml, s.dataType ); + + // If a local callback was specified, fire it and pass it the data + if ( s.success ) + s.success( data, status ); + + // Fire the global callback + if( s.global ) + jQuery.event.trigger( "ajaxSuccess", [xml, s] ); + } + } catch(e) { + status = "error"; + jQuery.handleError(s, xml, status, e); } // The request was completed @@ -691,35 +688,42 @@ jQuery.extend({ var xml2 = xml; // Send the data - xml2.send(s.data); + try { + xml2.send(s.data); + } catch(e) { + jQuery.handleError(s, xml, null, e); + } // return XMLHttpRequest to allow aborting the request etc. return xml2; }, + handleError: function(s, xml, status, e) { + // If a local callback was specified, fire it + if ( s.error ) s.error( xml, status, e ); + + // Fire the global callback + if( s.global ) + jQuery.event.trigger( "ajaxError", [xml, s, e] ); + }, + // Counter for holding the number of active queries active: 0, // Determines if an XMLHttpRequest was successful or not httpSuccess: function(r) { - try { - return !r.status && location.protocol == "file:" || - ( r.status >= 200 && r.status < 300 ) || r.status == 304 || - jQuery.browser.safari && r.status == undefined; - } catch(e){} - return false; + return !r.status && location.protocol == "file:" || + ( r.status >= 200 && r.status < 300 ) || r.status == 304 || + jQuery.browser.safari && r.status == undefined; }, // Determines if an XMLHttpRequest returns NotModified httpNotModified: function(xml, url) { - try { - var xmlRes = xml.getResponseHeader("Last-Modified"); + var xmlRes = xml.getResponseHeader("Last-Modified"); - // Firefox always returns 200. check Last-Modified date - return xml.status == 304 || xmlRes == jQuery.lastModified[url] || - jQuery.browser.safari && xml.status == undefined; - } catch(e){} - return false; + // Firefox always returns 200. check Last-Modified date + return xml.status == 304 || xmlRes == jQuery.lastModified[url] || + jQuery.browser.safari && xml.status == undefined; }, /* Get the data out of an XMLHttpRequest.