1 var jsc = jQuery.now(),
2 rscript = /<script(.|\s)*?\/script>/gi,
3 rselectTextarea = /select|textarea/i,
4 rinput = /color|date|datetime|email|hidden|month|number|password|range|search|tel|text|time|url|week/i,
7 rts = /(\?|&)_=.*?(&|$)/,
8 rurl = /^(\w+:)?\/\/([^\/?#]+)/,
11 // Keep a copy of the old load method
12 _load = jQuery.fn.load;
15 load: function( url, params, callback ) {
16 if ( typeof url !== "string" && _load ) {
17 return _load.apply( this, arguments );
19 // Don't do a request if no elements are being requested
20 } else if ( !this.length ) {
24 var off = url.indexOf(" ");
26 var selector = url.slice(off, url.length);
27 url = url.slice(0, off);
30 // Default to a GET request
33 // If the second parameter was provided
36 if ( jQuery.isFunction( params ) ) {
37 // We assume that it's the callback
41 // Otherwise, build a param string
42 } else if ( typeof params === "object" ) {
43 params = jQuery.param( params, jQuery.ajaxSettings.traditional );
50 // Request the remote document
56 complete: function( res, status ) {
57 // If successful, inject the HTML into all the matched elements
58 if ( status === "success" || status === "notmodified" ) {
59 // See if a selector was specified
61 // Create a dummy div to hold the results
63 // inject the contents of the document in, removing the scripts
64 // to avoid any 'Permission Denied' errors in IE
65 .append(res.responseText.replace(rscript, ""))
67 // Locate the specified elements
70 // If not, just inject the full result
75 self.each( callback, [res.responseText, status, res] );
83 serialize: function() {
84 return jQuery.param(this.serializeArray());
87 serializeArray: function() {
88 return this.map(function() {
89 return this.elements ? jQuery.makeArray(this.elements) : this;
92 return this.name && !this.disabled &&
93 (this.checked || rselectTextarea.test(this.nodeName) ||
94 rinput.test(this.type));
96 .map(function( i, elem ) {
97 var val = jQuery(this).val();
101 jQuery.isArray(val) ?
102 jQuery.map( val, function( val, i ) {
103 return { name: elem.name, value: val };
105 { name: elem.name, value: val };
110 // Attach a bunch of functions for handling common AJAX events
111 jQuery.each( "ajaxStart ajaxStop ajaxComplete ajaxError ajaxSuccess ajaxSend".split(" "), function( i, o ) {
112 jQuery.fn[o] = function( f ) {
113 return this.bind(o, f);
118 get: function( url, data, callback, type ) {
119 // shift arguments if data argument was omited
120 if ( jQuery.isFunction( data ) ) {
121 type = type || callback;
135 getScript: function( url, callback ) {
136 return jQuery.get(url, null, callback, "script");
139 getJSON: function( url, data, callback ) {
140 return jQuery.get(url, data, callback, "json");
143 post: function( url, data, callback, type ) {
144 // shift arguments if data argument was omited
145 if ( jQuery.isFunction( data ) ) {
146 type = type || callback;
160 ajaxSetup: function( settings ) {
161 jQuery.extend( jQuery.ajaxSettings, settings );
168 contentType: "application/x-www-form-urlencoded",
178 // Create the request object; Microsoft failed to properly
179 // implement the XMLHttpRequest in IE7 (can't request local files),
180 // so we use the ActiveXObject when it is available
181 // This function can be overriden by calling jQuery.ajaxSetup
182 xhr: window.XMLHttpRequest && (window.location.protocol !== "file:" || !window.ActiveXObject) ?
184 return new window.XMLHttpRequest();
188 return new window.ActiveXObject("Microsoft.XMLHTTP");
192 xml: "application/xml, text/xml",
194 script: "text/javascript, application/javascript",
195 json: "application/json, text/javascript",
201 ajax: function( origSettings ) {
202 var s = jQuery.extend(true, {}, jQuery.ajaxSettings, origSettings),
203 jsonp, status, data, type = s.type.toUpperCase();
205 s.context = origSettings && origSettings.context || s;
207 // convert data if not already a string
208 if ( s.data && s.processData && typeof s.data !== "string" ) {
209 s.data = jQuery.param( s.data, s.traditional );
212 // Handle JSONP Parameter Callbacks
213 if ( s.dataType === "jsonp" ) {
214 if ( type === "GET" ) {
215 if ( !jsre.test( s.url ) ) {
216 s.url += (rquery.test( s.url ) ? "&" : "?") + (s.jsonp || "callback") + "=?";
218 } else if ( !s.data || !jsre.test(s.data) ) {
219 s.data = (s.data ? s.data + "&" : "") + (s.jsonp || "callback") + "=?";
224 // Build temporary JSONP function
225 if ( s.dataType === "json" && (s.data && jsre.test(s.data) || jsre.test(s.url)) ) {
226 jsonp = s.jsonpCallback || ("jsonp" + jsc++);
228 // Replace the =? sequence both in the query string and the data
230 s.data = (s.data + "").replace(jsre, "=" + jsonp + "$1");
233 s.url = s.url.replace(jsre, "=" + jsonp + "$1");
235 // We need to make sure
236 // that a JSONP style response is executed properly
237 s.dataType = "script";
239 // Handle JSONP-style loading
240 var customJsonp = window[ jsonp ];
242 window[ jsonp ] = function( tmp ) {
244 jQuery.ajax.handleSuccess( s, xhr, status, data );
245 jQuery.ajax.handleComplete( s, xhr, status, data );
247 if ( jQuery.isFunction( customJsonp ) ) {
252 window[ jsonp ] = undefined;
255 delete window[ jsonp ];
256 } catch( jsonpError ) {}
260 head.removeChild( script );
265 if ( s.dataType === "script" && s.cache === null ) {
269 if ( s.cache === false && type === "GET" ) {
270 var ts = jQuery.now();
272 // try replacing _= if it is there
273 var ret = s.url.replace(rts, "$1_=" + ts + "$2");
275 // if nothing was replaced, add timestamp to the end
276 s.url = ret + ((ret === s.url) ? (rquery.test(s.url) ? "&" : "?") + "_=" + ts : "");
279 // If data is available, append data to url for get requests
280 if ( s.data && type === "GET" ) {
281 s.url += (rquery.test(s.url) ? "&" : "?") + s.data;
284 // Watch for a new set of requests
285 if ( s.global && jQuery.ajax.active++ === 0 ) {
286 jQuery.event.trigger( "ajaxStart" );
289 // Matches an absolute URL, and saves the domain
290 var parts = rurl.exec( s.url ),
291 remote = parts && (parts[1] && parts[1] !== location.protocol || parts[2] !== location.host);
293 // If we're requesting a remote document
294 // and trying to load JSON or Script with a GET
295 if ( s.dataType === "script" && type === "GET" && remote ) {
296 var head = document.getElementsByTagName("head")[0] || document.documentElement;
297 var script = document.createElement("script");
299 if ( s.scriptCharset ) {
300 script.charset = s.scriptCharset;
303 // Handle Script loading
307 // Attach handlers for all browsers
308 script.onload = script.onreadystatechange = function() {
309 if ( !done && (!this.readyState ||
310 this.readyState === "loaded" || this.readyState === "complete") ) {
312 jQuery.ajax.handleSuccess( s, xhr, status, data );
313 jQuery.ajax.handleComplete( s, xhr, status, data );
315 // Handle memory leak in IE
316 script.onload = script.onreadystatechange = null;
317 if ( head && script.parentNode ) {
318 head.removeChild( script );
324 // Use insertBefore instead of appendChild to circumvent an IE6 bug.
325 // This arises when a base node is used (#2709 and #4378).
326 head.insertBefore( script, head.firstChild );
328 // We handle everything using the script element injection
332 var requestDone = false;
334 // Create the request object
342 // Passing null username, generates a login popup on Opera (#2865)
344 xhr.open(type, s.url, s.async, s.username, s.password);
346 xhr.open(type, s.url, s.async);
349 // Need an extra try/catch for cross domain requests in Firefox 3
351 // Set the correct header, if data is being sent
352 if ( s.data || origSettings && origSettings.contentType ) {
353 xhr.setRequestHeader("Content-Type", s.contentType);
356 // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
357 if ( s.ifModified ) {
358 if ( jQuery.lastModified[s.url] ) {
359 xhr.setRequestHeader("If-Modified-Since", jQuery.lastModified[s.url]);
362 if ( jQuery.ajax.etag[s.url] ) {
363 xhr.setRequestHeader("If-None-Match", jQuery.ajax.etag[s.url]);
367 // Set header so the called script knows that it's an XMLHttpRequest
368 // Only send the header if it's not a remote XHR
370 xhr.setRequestHeader("X-Requested-With", "XMLHttpRequest");
373 // Set the Accepts header for the server, depending on the dataType
374 xhr.setRequestHeader("Accept", s.dataType && s.accepts[ s.dataType ] ?
375 s.accepts[ s.dataType ] + ", */*" :
376 s.accepts._default );
377 } catch( headerError ) {}
379 // Allow custom headers/mimetypes and early abort
380 if ( s.beforeSend && s.beforeSend.call(s.context, xhr, s) === false ) {
381 // Handle the global AJAX counter
382 if ( s.global && jQuery.ajax.active-- === 1 ) {
383 jQuery.event.trigger( "ajaxStop" );
386 // close opended socket
392 jQuery.ajax.triggerGlobal( s, "ajaxSend", [xhr, s] );
395 // Wait for a response to come back
396 var onreadystatechange = xhr.onreadystatechange = function( isTimeout ) {
397 // The request was aborted
398 if ( !xhr || xhr.readyState === 0 || isTimeout === "abort" ) {
399 // Opera doesn't call onreadystatechange before this point
400 // so we simulate the call
401 if ( !requestDone ) {
402 jQuery.ajax.handleComplete( s, xhr, status, data );
407 xhr.onreadystatechange = jQuery.noop;
410 // The transfer is complete and the data is available, or the request timed out
411 } else if ( !requestDone && xhr && (xhr.readyState === 4 || isTimeout === "timeout") ) {
413 xhr.onreadystatechange = jQuery.noop;
415 status = isTimeout === "timeout" ?
417 !jQuery.ajax.httpSuccess( xhr ) ?
419 s.ifModified && jQuery.ajax.httpNotModified( xhr, s.url ) ?
425 if ( status === "success" ) {
426 // Watch for, and catch, XML document parse errors
428 // process the data (runs the xml through httpData regardless of callback)
429 data = jQuery.ajax.httpData( xhr, s.dataType, s );
430 } catch( parserError ) {
431 status = "parsererror";
432 errMsg = parserError;
436 // Make sure that the request was successful or notmodified
437 if ( status === "success" || status === "notmodified" ) {
438 // JSONP handles its own success callback
440 jQuery.ajax.handleSuccess( s, xhr, status, data );
443 jQuery.ajax.handleError( s, xhr, status, errMsg );
446 // Fire the complete handlers
448 jQuery.ajax.handleComplete( s, xhr, status, data );
451 if ( isTimeout === "timeout" ) {
462 // Override the abort handler, if we can (IE doesn't allow it, but that's OK)
463 // Opera doesn't fire onreadystatechange at all on abort
465 var oldAbort = xhr.abort;
466 xhr.abort = function() {
468 oldAbort.call( xhr );
471 onreadystatechange( "abort" );
473 } catch( abortError ) {}
476 if ( s.async && s.timeout > 0 ) {
477 setTimeout(function() {
478 // Check to see if the request is still happening
479 if ( xhr && !requestDone ) {
480 onreadystatechange( "timeout" );
487 xhr.send( (type !== "GET" && s.data) || null );
489 } catch( sendError ) {
490 jQuery.ajax.handleError( s, xhr, null, e );
492 // Fire the complete handlers
493 jQuery.ajax.handleComplete( s, xhr, status, data );
496 // firefox 1.5 doesn't fire statechange for sync requests
498 onreadystatechange();
501 // return XMLHttpRequest to allow aborting the request etc.
505 // Serialize an array of form elements or a set of
506 // key/values into a query string
507 param: function( a, traditional ) {
508 var s = [], add = function( key, value ) {
509 // If value is a function, invoke it and return its value
510 value = jQuery.isFunction(value) ? value() : value;
511 s[ s.length ] = encodeURIComponent(key) + "=" + encodeURIComponent(value);
514 // Set traditional to true for jQuery <= 1.3.2 behavior.
515 if ( traditional === undefined ) {
516 traditional = jQuery.ajaxSettings.traditional;
519 // If an array was passed in, assume that it is an array of form elements.
520 if ( jQuery.isArray(a) || a.jquery ) {
521 // Serialize the form elements
522 jQuery.each( a, function() {
523 add( this.name, this.value );
527 // If traditional, encode the "old" way (the way 1.3.2 or older
528 // did it), otherwise encode params recursively.
529 for ( var prefix in a ) {
530 buildParams( prefix, a[prefix], traditional, add );
534 // Return the resulting serialization
535 return s.join("&").replace(r20, "+");
539 function buildParams( prefix, obj, traditional, add ) {
540 if ( jQuery.isArray(obj) ) {
541 // Serialize array item.
542 jQuery.each( obj, function( i, v ) {
543 if ( traditional || /\[\]$/.test( prefix ) ) {
544 // Treat each array item as a scalar.
548 // If array item is non-scalar (array or object), encode its
549 // numeric index to resolve deserialization ambiguity issues.
550 // Note that rack (as of 1.0.0) can't currently deserialize
551 // nested arrays properly, and attempting to do so may cause
552 // a server error. Possible fixes are to modify rack's
553 // deserialization algorithm or to provide an option or flag
554 // to force array serialization to be shallow.
555 buildParams( prefix + "[" + ( typeof v === "object" || jQuery.isArray(v) ? i : "" ) + "]", v, traditional, add );
559 } else if ( !traditional && obj != null && typeof obj === "object" ) {
560 // Serialize object item.
561 jQuery.each( obj, function( k, v ) {
562 buildParams( prefix + "[" + k + "]", v, traditional, add );
566 // Serialize scalar item.
571 jQuery.extend( jQuery.ajax, {
573 // Counter for holding the number of active queries
576 // Last-Modified header cache for next request
580 handleError: function( s, xhr, status, e ) {
581 // If a local callback was specified, fire it
583 s.error.call( s.context, xhr, status, e );
586 // Fire the global callback
588 jQuery.ajax.triggerGlobal( s, "ajaxError", [xhr, s, e] );
592 handleSuccess: function( s, xhr, status, data ) {
593 // If a local callback was specified, fire it and pass it the data
595 s.success.call( s.context, data, status, xhr );
598 // Fire the global callback
600 jQuery.ajax.triggerGlobal( s, "ajaxSuccess", [xhr, s] );
604 handleComplete: function( s, xhr, status ) {
607 s.complete.call( s.context, xhr, status );
610 // The request was completed
612 jQuery.ajax.triggerGlobal( s, "ajaxComplete", [xhr, s] );
615 // Handle the global AJAX counter
616 if ( s.global && jQuery.ajax.active-- === 1 ) {
617 jQuery.event.trigger( "ajaxStop" );
621 triggerGlobal: function( s, type, args ) {
622 (s.context && s.context.url == null ? jQuery(s.context) : jQuery.event).trigger(type, args);
625 // Determines if an XMLHttpRequest was successful or not
626 httpSuccess: function( xhr ) {
628 // IE error sometimes returns 1223 when it should be 204 so treat it as success, see #1450
629 return !xhr.status && location.protocol === "file:" ||
630 // Opera returns 0 when status is 304
631 ( xhr.status >= 200 && xhr.status < 300 ) ||
632 xhr.status === 304 || xhr.status === 1223 || xhr.status === 0;
638 // Determines if an XMLHttpRequest returns NotModified
639 httpNotModified: function( xhr, url ) {
640 var lastModified = xhr.getResponseHeader("Last-Modified"),
641 etag = xhr.getResponseHeader("Etag");
643 if ( lastModified ) {
644 jQuery.ajax.lastModified[url] = lastModified;
648 jQuery.ajax.etag[url] = etag;
651 // Opera returns 0 when status is 304
652 return xhr.status === 304 || xhr.status === 0;
655 httpData: function( xhr, type, s ) {
656 var ct = xhr.getResponseHeader("content-type") || "",
657 xml = type === "xml" || !type && ct.indexOf("xml") >= 0,
658 data = xml ? xhr.responseXML : xhr.responseText;
660 if ( xml && data.documentElement.nodeName === "parsererror" ) {
661 jQuery.error( "parsererror" );
664 // Allow a pre-filtering function to sanitize the response
665 // s is checked to keep backwards compatibility
666 if ( s && s.dataFilter ) {
667 data = s.dataFilter( data, type );
670 // The filter can actually parse the response
671 if ( typeof data === "string" ) {
672 // Get the JavaScript object, if JSON is used.
673 if ( type === "json" || !type && ct.indexOf("json") >= 0 ) {
674 data = jQuery.parseJSON( data );
676 // If the type is "script", eval it in global context
677 } else if ( type === "script" || !type && ct.indexOf("javascript") >= 0 ) {
678 jQuery.globalEval( data );
687 // For backwards compatibility
688 jQuery.extend( jQuery.ajax );