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jqueryjquery ajax: closes #1289. Renamed 'xml' and 'r' to 'xhr'.

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This commit is contained in:
Ariel Flesler 2008-05-15 21:03:31 +00:00
parent 82ba3709ee
commit c5f4d70e2b
1 changed files with 39 additions and 39 deletions
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78
src/ajax.js
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@ -274,51 +274,51 @@ jQuery.extend({
// Create the request object; Microsoft failed to properly // Create the request object; Microsoft failed to properly
// implement the XMLHttpRequest in IE7, so we use the ActiveXObject when it is available // implement the XMLHttpRequest in IE7, so we use the ActiveXObject when it is available
var xml = window.ActiveXObject ? new ActiveXObject("Microsoft.XMLHTTP") : new XMLHttpRequest(); var xhr = window.ActiveXObject ? new ActiveXObject("Microsoft.XMLHTTP") : new XMLHttpRequest();
// Open the socket // Open the socket
// Passing null username, generates a login popup on Opera (#2865) // Passing null username, generates a login popup on Opera (#2865)
if( s.username ) if( s.username )
xml.open(type, s.url, s.async, s.username, s.password); xhr.open(type, s.url, s.async, s.username, s.password);
else else
xml.open(type, s.url, s.async); xhr.open(type, s.url, s.async);
// Need an extra try/catch for cross domain requests in Firefox 3 // Need an extra try/catch for cross domain requests in Firefox 3
try { try {
// Set the correct header, if data is being sent // Set the correct header, if data is being sent
if ( s.data ) if ( s.data )
xml.setRequestHeader("Content-Type", s.contentType); xhr.setRequestHeader("Content-Type", s.contentType);
// Set the If-Modified-Since header, if ifModified mode. // Set the If-Modified-Since header, if ifModified mode.
if ( s.ifModified ) if ( s.ifModified )
xml.setRequestHeader("If-Modified-Since", xhr.setRequestHeader("If-Modified-Since",
jQuery.lastModified[s.url] || "Thu, 01 Jan 1970 00:00:00 GMT" ); jQuery.lastModified[s.url] || "Thu, 01 Jan 1970 00:00:00 GMT" );
// Set header so the called script knows that it's an XMLHttpRequest // Set header so the called script knows that it's an XMLHttpRequest
xml.setRequestHeader("X-Requested-With", "XMLHttpRequest"); xhr.setRequestHeader("X-Requested-With", "XMLHttpRequest");
// Set the Accepts header for the server, depending on the dataType // Set the Accepts header for the server, depending on the dataType
xml.setRequestHeader("Accept", s.dataType && s.accepts[ s.dataType ] ? xhr.setRequestHeader("Accept", s.dataType && s.accepts[ s.dataType ] ?
s.accepts[ s.dataType ] + ", */*" : s.accepts[ s.dataType ] + ", */*" :
s.accepts._default ); s.accepts._default );
} catch(e){} } catch(e){}
// Allow custom headers/mimetypes // Allow custom headers/mimetypes
if ( s.beforeSend && s.beforeSend(xml, s) === false ) { if ( s.beforeSend && s.beforeSend(xhr, s) === false ) {
// cleanup active request counter // cleanup active request counter
s.global && jQuery.active--; s.global && jQuery.active--;
// close opended socket // close opended socket
xml.abort(); xhr.abort();
return false; return false;
} }
if ( s.global ) if ( s.global )
jQuery.event.trigger("ajaxSend", [xml, s]); jQuery.event.trigger("ajaxSend", [xhr, s]);
// Wait for a response to come back // Wait for a response to come back
var onreadystatechange = function(isTimeout){ var onreadystatechange = function(isTimeout){
// The transfer is complete and the data is available, or the request timed out // The transfer is complete and the data is available, or the request timed out
if ( !requestDone && xml && (xml.readyState == 4 || isTimeout == "timeout") ) { if ( !requestDone && xhr && (xhr.readyState == 4 || isTimeout == "timeout") ) {
requestDone = true; requestDone = true;
// clear poll interval // clear poll interval
@ -328,15 +328,15 @@ jQuery.extend({
} }
status = isTimeout == "timeout" && "timeout" || status = isTimeout == "timeout" && "timeout" ||
!jQuery.httpSuccess( xml ) && "error" || !jQuery.httpSuccess( xhr ) && "error" ||
s.ifModified && jQuery.httpNotModified( xml, s.url ) && "notmodified" || s.ifModified && jQuery.httpNotModified( xhr, s.url ) && "notmodified" ||
"success"; "success";
if ( status == "success" ) { if ( status == "success" ) {
// Watch for, and catch, XML document parse errors // Watch for, and catch, XML document parse errors
try { try {
// process the data (runs the xml through httpData regardless of callback) // process the data (runs the xml through httpData regardless of callback)
data = jQuery.httpData( xml, s.dataType ); data = jQuery.httpData( xhr, s.dataType );
} catch(e) { } catch(e) {
status = "parsererror"; status = "parsererror";
} }
@ -347,7 +347,7 @@ jQuery.extend({
// Cache Last-Modified header, if ifModified mode. // Cache Last-Modified header, if ifModified mode.
var modRes; var modRes;
try { try {
modRes = xml.getResponseHeader("Last-Modified"); modRes = xhr.getResponseHeader("Last-Modified");
} catch(e) {} // swallow exception thrown by FF if header is not available } catch(e) {} // swallow exception thrown by FF if header is not available
if ( s.ifModified && modRes ) if ( s.ifModified && modRes )
@ -357,14 +357,14 @@ jQuery.extend({
if ( !jsonp ) if ( !jsonp )
success(); success();
} else } else
jQuery.handleError(s, xml, status); jQuery.handleError(s, xhr, status);
// Fire the complete handlers // Fire the complete handlers
complete(); complete();
// Stop memory leaks // Stop memory leaks
if ( s.async ) if ( s.async )
xml = null; xhr = null;
} }
}; };
@ -376,9 +376,9 @@ jQuery.extend({
if ( s.timeout > 0 ) if ( s.timeout > 0 )
setTimeout(function(){ setTimeout(function(){
// Check to see if the request is still happening // Check to see if the request is still happening
if ( xml ) { if ( xhr ) {
// Cancel the request // Cancel the request
xml.abort(); xhr.abort();
if( !requestDone ) if( !requestDone )
onreadystatechange( "timeout" ); onreadystatechange( "timeout" );
@ -388,9 +388,9 @@ jQuery.extend({
// Send the data // Send the data
try { try {
xml.send(s.data); xhr.send(s.data);
} catch(e) { } catch(e) {
jQuery.handleError(s, xml, null, e); jQuery.handleError(s, xhr, null, e);
} }
// firefox 1.5 doesn't fire statechange for sync requests // firefox 1.5 doesn't fire statechange for sync requests
@ -404,17 +404,17 @@ jQuery.extend({
// Fire the global callback // Fire the global callback
if ( s.global ) if ( s.global )
jQuery.event.trigger( "ajaxSuccess", [xml, s] ); jQuery.event.trigger( "ajaxSuccess", [xhr, s] );
} }
function complete(){ function complete(){
// Process result // Process result
if ( s.complete ) if ( s.complete )
s.complete(xml, status); s.complete(xhr, status);
// The request was completed // The request was completed
if ( s.global ) if ( s.global )
jQuery.event.trigger( "ajaxComplete", [xml, s] ); jQuery.event.trigger( "ajaxComplete", [xhr, s] );
// Handle the global AJAX counter // Handle the global AJAX counter
if ( s.global && ! --jQuery.active ) if ( s.global && ! --jQuery.active )
@ -422,48 +422,48 @@ jQuery.extend({
} }
// return XMLHttpRequest to allow aborting the request etc. // return XMLHttpRequest to allow aborting the request etc.
return xml; return xhr;
}, },
handleError: function( s, xml, status, e ) { handleError: function( s, xhr, status, e ) {
// If a local callback was specified, fire it // If a local callback was specified, fire it
if ( s.error ) s.error( xml, status, e ); if ( s.error ) s.error( xhr, status, e );
// Fire the global callback // Fire the global callback
if ( s.global ) if ( s.global )
jQuery.event.trigger( "ajaxError", [xml, s, e] ); jQuery.event.trigger( "ajaxError", [xhr, s, e] );
}, },
// Counter for holding the number of active queries // Counter for holding the number of active queries
active: 0, active: 0,
// Determines if an XMLHttpRequest was successful or not // Determines if an XMLHttpRequest was successful or not
httpSuccess: function( r ) { httpSuccess: function( xhr ) {
try { try {
// IE error sometimes returns 1223 when it should be 204 so treat it as success, see #1450 // IE error sometimes returns 1223 when it should be 204 so treat it as success, see #1450
return !r.status && location.protocol == "file:" || return !xhr.status && location.protocol == "file:" ||
( r.status >= 200 && r.status < 300 ) || r.status == 304 || r.status == 1223 || ( xhr.status >= 200 && xhr.status < 300 ) || xhr.status == 304 || xhr.status == 1223 ||
jQuery.browser.safari && r.status == undefined; jQuery.browser.safari && xhr.status == undefined;
} catch(e){} } catch(e){}
return false; return false;
}, },
// Determines if an XMLHttpRequest returns NotModified // Determines if an XMLHttpRequest returns NotModified
httpNotModified: function( xml, url ) { httpNotModified: function( xhr, url ) {
try { try {
var xmlRes = xml.getResponseHeader("Last-Modified"); var xhrRes = xhr.getResponseHeader("Last-Modified");
// Firefox always returns 200. check Last-Modified date // Firefox always returns 200. check Last-Modified date
return xml.status == 304 || xmlRes == jQuery.lastModified[url] || return xhr.status == 304 || xhrRes == jQuery.lastModified[url] ||
jQuery.browser.safari && xml.status == undefined; jQuery.browser.safari && xhr.status == undefined;
} catch(e){} } catch(e){}
return false; return false;
}, },
httpData: function( r, type ) { httpData: function( xhr, type ) {
var ct = r.getResponseHeader("content-type"), var ct = xhr.getResponseHeader("content-type"),
xml = type == "xml" || !type && ct && ct.indexOf("xml") >= 0, xml = type == "xml" || !type && ct && ct.indexOf("xml") >= 0,
data = xml ? r.responseXML : r.responseText; data = xml ? xhr.responseXML : xhr.responseText;
if ( xml && data.documentElement.tagName == "parsererror" ) if ( xml && data.documentElement.tagName == "parsererror" )
throw "parsererror"; throw "parsererror";