3 var jsc = jQuery.now(),
4 rscript = /<script\b[^<]*(?:(?!<\/script>)<[^<]*)*<\/script>/gi,
5 rselectTextarea = /^(?:select|textarea)/i,
6 rinput = /^(?:color|date|datetime|email|hidden|month|number|password|range|search|tel|text|time|url|week)$/i,
7 rnoContent = /^(?:GET|HEAD)$/,
11 rts = /([?&])_=[^&]*/,
12 rurl = /^(\w+:)?\/\/([^\/?#]+)/,
16 // Keep a copy of the old load method
17 _load = jQuery.fn.load;
20 load: function( url, params, callback ) {
21 if ( typeof url !== "string" && _load ) {
22 return _load.apply( this, arguments );
24 // Don't do a request if no elements are being requested
25 } else if ( !this.length ) {
29 var off = url.indexOf(" ");
31 var selector = url.slice(off, url.length);
32 url = url.slice(0, off);
35 // Default to a GET request
38 // If the second parameter was provided
41 if ( jQuery.isFunction( params ) ) {
42 // We assume that it's the callback
46 // Otherwise, build a param string
47 } else if ( typeof params === "object" ) {
48 params = jQuery.param( params, jQuery.ajaxSettings.traditional );
55 // Request the remote document
61 complete: function( res, status ) {
62 // If successful, inject the HTML into all the matched elements
63 if ( status === "success" || status === "notmodified" ) {
64 // See if a selector was specified
66 // Create a dummy div to hold the results
68 // inject the contents of the document in, removing the scripts
69 // to avoid any 'Permission Denied' errors in IE
70 .append(res.responseText.replace(rscript, ""))
72 // Locate the specified elements
75 // If not, just inject the full result
80 self.each( callback, [res.responseText, status, res] );
88 serialize: function() {
89 return jQuery.param(this.serializeArray());
92 serializeArray: function() {
93 return this.map(function() {
94 return this.elements ? jQuery.makeArray(this.elements) : this;
97 return this.name && !this.disabled &&
98 (this.checked || rselectTextarea.test(this.nodeName) ||
99 rinput.test(this.type));
101 .map(function( i, elem ) {
102 var val = jQuery(this).val();
106 jQuery.isArray(val) ?
107 jQuery.map( val, function( val, i ) {
108 return { name: elem.name, value: val };
110 { name: elem.name, value: val };
115 // Attach a bunch of functions for handling common AJAX events
116 jQuery.each( "ajaxStart ajaxStop ajaxComplete ajaxError ajaxSuccess ajaxSend".split(" "), function( i, o ) {
117 jQuery.fn[o] = function( f ) {
118 return this.bind(o, f);
123 get: function( url, data, callback, type ) {
124 // shift arguments if data argument was omited
125 if ( jQuery.isFunction( data ) ) {
126 type = type || callback;
140 getScript: function( url, callback ) {
141 return jQuery.get(url, null, callback, "script");
144 getJSON: function( url, data, callback ) {
145 return jQuery.get(url, data, callback, "json");
148 post: function( url, data, callback, type ) {
149 // shift arguments if data argument was omited
150 if ( jQuery.isFunction( data ) ) {
151 type = type || callback;
165 ajaxSetup: function( settings ) {
166 jQuery.extend( jQuery.ajaxSettings, settings );
173 contentType: "application/x-www-form-urlencoded",
183 // This function can be overriden by calling jQuery.ajaxSetup
185 return new window.XMLHttpRequest();
188 xml: "application/xml, text/xml",
190 script: "text/javascript, application/javascript",
191 json: "application/json, text/javascript",
197 ajax: function( origSettings ) {
198 // IE8 leaks a lot when we've set abort, and IE6-8 a little
199 // when we have set onreadystatechange. Bug #6242
200 // XXX IE7 still leaks when abort is called, no matter what
203 // IE6 will throw an error setting xhr.abort
205 xhr.abort = xhr.onreadystatechange = jQuery.noop;
209 var s = jQuery.extend(true, {}, jQuery.ajaxSettings, origSettings),
210 jsonp, status, data, type = s.type.toUpperCase(), noContent = rnoContent.test(type);
212 // toString fixes people passing a window.location or
213 // document.location to $.ajax, which worked in 1.4.2 and
214 // earlier (bug #7531). It should be removed in 1.5.
215 s.url = ("" + s.url).replace( rhash, "" );
217 // Use original (not extended) context object if it was provided
218 s.context = origSettings && origSettings.context != null ? origSettings.context : s;
220 // convert data if not already a string
221 if ( s.data && s.processData && typeof s.data !== "string" ) {
222 s.data = jQuery.param( s.data, s.traditional );
225 // Handle JSONP Parameter Callbacks
226 if ( s.dataType === "jsonp" ) {
227 if ( type === "GET" ) {
228 if ( !jsre.test( s.url ) ) {
229 s.url += (rquery.test( s.url ) ? "&" : "?") + (s.jsonp || "callback") + "=?";
231 } else if ( !s.data || !jsre.test(s.data) ) {
232 s.data = (s.data ? s.data + "&" : "") + (s.jsonp || "callback") + "=?";
237 // Build temporary JSONP function
238 if ( s.dataType === "json" && (s.data && jsre.test(s.data) || jsre.test(s.url)) ) {
239 jsonp = s.jsonpCallback || ("jsonp" + jsc++);
241 // Replace the =? sequence both in the query string and the data
243 s.data = (s.data + "").replace(jsre, "=" + jsonp + "$1");
246 s.url = s.url.replace(jsre, "=" + jsonp + "$1");
248 // We need to make sure
249 // that a JSONP style response is executed properly
250 s.dataType = "script";
252 // Handle JSONP-style loading
253 var customJsonp = window[ jsonp ];
255 window[ jsonp ] = function( tmp ) {
256 if ( jQuery.isFunction( customJsonp ) ) {
261 window[ jsonp ] = undefined;
264 delete window[ jsonp ];
265 } catch( jsonpError ) {}
269 jQuery.handleSuccess( s, xhr, status, data );
270 jQuery.handleComplete( s, xhr, status, data );
273 head.removeChild( script );
278 if ( s.dataType === "script" && s.cache === undefined ) {
282 if ( s.cache === false && noContent ) {
283 var ts = jQuery.now();
285 // try replacing _= if it is there
286 var ret = s.url.replace(rts, "$1_=" + ts);
288 // if nothing was replaced, add timestamp to the end
289 s.url = ret + ((ret === s.url) ? (rquery.test(s.url) ? "&" : "?") + "_=" + ts : "");
292 // If data is available, append data to url for GET/HEAD requests
293 if ( s.data && noContent ) {
294 s.url += (rquery.test(s.url) ? "&" : "?") + s.data;
297 // Watch for a new set of requests
298 if ( s.global && jQuery.active++ === 0 ) {
299 jQuery.event.trigger( "ajaxStart" );
302 // Matches an absolute URL, and saves the domain
303 var parts = rurl.exec( s.url ),
304 remote = parts && (parts[1] && parts[1].toLowerCase() !== location.protocol || parts[2].toLowerCase() !== location.host);
306 // If we're requesting a remote document
307 // and trying to load JSON or Script with a GET
308 if ( s.dataType === "script" && type === "GET" && remote ) {
309 var head = document.getElementsByTagName("head")[0] || document.documentElement;
310 var script = document.createElement("script");
311 if ( s.scriptCharset ) {
312 script.charset = s.scriptCharset;
316 // Handle Script loading
320 // Attach handlers for all browsers
321 script.onload = script.onreadystatechange = function() {
322 if ( !done && (!this.readyState ||
323 this.readyState === "loaded" || this.readyState === "complete") ) {
325 jQuery.handleSuccess( s, xhr, status, data );
326 jQuery.handleComplete( s, xhr, status, data );
328 // Handle memory leak in IE
329 script.onload = script.onreadystatechange = null;
330 if ( head && script.parentNode ) {
331 head.removeChild( script );
337 // Use insertBefore instead of appendChild to circumvent an IE6 bug.
338 // This arises when a base node is used (#2709 and #4378).
339 head.insertBefore( script, head.firstChild );
341 // We handle everything using the script element injection
345 var requestDone = false;
347 // Create the request object
355 // Passing null username, generates a login popup on Opera (#2865)
357 xhr.open(type, s.url, s.async, s.username, s.password);
359 xhr.open(type, s.url, s.async);
362 // Need an extra try/catch for cross domain requests in Firefox 3
364 // Set content-type if data specified and content-body is valid for this type
365 if ( (s.data != null && !noContent) || (origSettings && origSettings.contentType) ) {
366 xhr.setRequestHeader("Content-Type", s.contentType);
369 // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
370 if ( s.ifModified ) {
371 if ( jQuery.lastModified[s.url] ) {
372 xhr.setRequestHeader("If-Modified-Since", jQuery.lastModified[s.url]);
375 if ( jQuery.etag[s.url] ) {
376 xhr.setRequestHeader("If-None-Match", jQuery.etag[s.url]);
380 // Set header so the called script knows that it's an XMLHttpRequest
381 // Only send the header if it's not a remote XHR
383 xhr.setRequestHeader("X-Requested-With", "XMLHttpRequest");
386 // Set the Accepts header for the server, depending on the dataType
387 xhr.setRequestHeader("Accept", s.dataType && s.accepts[ s.dataType ] ?
388 s.accepts[ s.dataType ] + ", */*; q=0.01" :
389 s.accepts._default );
390 } catch( headerError ) {}
392 // Allow custom headers/mimetypes and early abort
393 if ( s.beforeSend && s.beforeSend.call(s.context, xhr, s) === false ) {
394 // Handle the global AJAX counter
395 if ( s.global && jQuery.active-- === 1 ) {
396 jQuery.event.trigger( "ajaxStop" );
399 // close opended socket
405 jQuery.triggerGlobal( s, "ajaxSend", [xhr, s] );
408 // Wait for a response to come back
409 var onreadystatechange = xhr.onreadystatechange = function( isTimeout ) {
410 // The request was aborted
411 if ( !xhr || xhr.readyState === 0 || isTimeout === "abort" ) {
412 // Opera doesn't call onreadystatechange before this point
413 // so we simulate the call
414 if ( !requestDone ) {
415 jQuery.handleComplete( s, xhr, status, data );
423 // The transfer is complete and the data is available, or the request timed out
424 } else if ( !requestDone && xhr && (xhr.readyState === 4 || isTimeout === "timeout") ) {
427 status = isTimeout === "timeout" ?
429 !jQuery.httpSuccess( xhr ) ?
431 s.ifModified && jQuery.httpNotModified( xhr, s.url ) ?
437 if ( status === "success" ) {
438 // Watch for, and catch, XML document parse errors
440 // process the data (runs the xml through httpData regardless of callback)
441 data = jQuery.httpData( xhr, s.dataType, s );
442 } catch( parserError ) {
443 status = "parsererror";
444 errMsg = parserError;
448 // Make sure that the request was successful or notmodified
449 if ( status === "success" || status === "notmodified" ) {
450 // JSONP handles its own success callback
452 jQuery.handleSuccess( s, xhr, status, data );
455 jQuery.handleError( s, xhr, status, errMsg );
458 // Fire the complete handlers
460 jQuery.handleComplete( s, xhr, status, data );
463 if ( isTimeout === "timeout" ) {
471 // Override the abort handler, if we can (IE 6 doesn't allow it, but that's OK)
472 // Opera doesn't fire onreadystatechange at all on abort
474 var oldAbort = xhr.abort;
475 xhr.abort = function() {
477 // oldAbort has no call property in IE7 so
478 // just do it this way, which works in all
480 Function.prototype.call.call( oldAbort, xhr );
483 onreadystatechange( "abort" );
485 } catch( abortError ) {}
488 if ( s.async && s.timeout > 0 ) {
489 setTimeout(function() {
490 // Check to see if the request is still happening
491 if ( xhr && !requestDone ) {
492 onreadystatechange( "timeout" );
499 xhr.send( noContent || s.data == null ? null : s.data );
501 } catch( sendError ) {
502 jQuery.handleError( s, xhr, null, sendError );
504 // Fire the complete handlers
505 jQuery.handleComplete( s, xhr, status, data );
508 // firefox 1.5 doesn't fire statechange for sync requests
510 onreadystatechange();
513 // return XMLHttpRequest to allow aborting the request etc.
517 // Serialize an array of form elements or a set of
518 // key/values into a query string
519 param: function( a, traditional ) {
521 add = function( key, value ) {
522 // If value is a function, invoke it and return its value
523 value = jQuery.isFunction(value) ? value() : value;
524 s[ s.length ] = encodeURIComponent(key) + "=" + encodeURIComponent(value);
527 // Set traditional to true for jQuery <= 1.3.2 behavior.
528 if ( traditional === undefined ) {
529 traditional = jQuery.ajaxSettings.traditional;
532 // If an array was passed in, assume that it is an array of form elements.
533 if ( jQuery.isArray(a) || a.jquery ) {
534 // Serialize the form elements
535 jQuery.each( a, function() {
536 add( this.name, this.value );
540 // If traditional, encode the "old" way (the way 1.3.2 or older
541 // did it), otherwise encode params recursively.
542 for ( var prefix in a ) {
543 buildParams( prefix, a[prefix], traditional, add );
547 // Return the resulting serialization
548 return s.join("&").replace(r20, "+");
552 function buildParams( prefix, obj, traditional, add ) {
553 if ( jQuery.isArray(obj) && obj.length ) {
554 // Serialize array item.
555 jQuery.each( obj, function( i, v ) {
556 if ( traditional || rbracket.test( prefix ) ) {
557 // Treat each array item as a scalar.
561 // If array item is non-scalar (array or object), encode its
562 // numeric index to resolve deserialization ambiguity issues.
563 // Note that rack (as of 1.0.0) can't currently deserialize
564 // nested arrays properly, and attempting to do so may cause
565 // a server error. Possible fixes are to modify rack's
566 // deserialization algorithm or to provide an option or flag
567 // to force array serialization to be shallow.
568 buildParams( prefix + "[" + ( typeof v === "object" || jQuery.isArray(v) ? i : "" ) + "]", v, traditional, add );
572 } else if ( !traditional && obj != null && typeof obj === "object" ) {
573 if ( jQuery.isEmptyObject( obj ) ) {
576 // Serialize object item.
578 jQuery.each( obj, function( k, v ) {
579 buildParams( prefix + "[" + k + "]", v, traditional, add );
584 // Serialize scalar item.
589 // This is still on the jQuery object... for now
590 // Want to move this to jQuery.ajax some day
593 // Counter for holding the number of active queries
596 // Last-Modified header cache for next request
600 handleError: function( s, xhr, status, e ) {
601 // If a local callback was specified, fire it
603 s.error.call( s.context, xhr, status, e );
606 // Fire the global callback
608 jQuery.triggerGlobal( s, "ajaxError", [xhr, s, e] );
612 handleSuccess: function( s, xhr, status, data ) {
613 // If a local callback was specified, fire it and pass it the data
615 s.success.call( s.context, data, status, xhr );
618 // Fire the global callback
620 jQuery.triggerGlobal( s, "ajaxSuccess", [xhr, s] );
624 handleComplete: function( s, xhr, status ) {
627 s.complete.call( s.context, xhr, status );
630 // The request was completed
632 jQuery.triggerGlobal( s, "ajaxComplete", [xhr, s] );
635 // Handle the global AJAX counter
636 if ( s.global && jQuery.active-- === 1 ) {
637 jQuery.event.trigger( "ajaxStop" );
641 triggerGlobal: function( s, type, args ) {
642 (s.context && s.context.url == null ? jQuery(s.context) : jQuery.event).trigger(type, args);
645 // Determines if an XMLHttpRequest was successful or not
646 httpSuccess: function( xhr ) {
648 // IE error sometimes returns 1223 when it should be 204 so treat it as success, see #1450
649 return !xhr.status && location.protocol === "file:" ||
650 xhr.status >= 200 && xhr.status < 300 ||
651 xhr.status === 304 || xhr.status === 1223;
657 // Determines if an XMLHttpRequest returns NotModified
658 httpNotModified: function( xhr, url ) {
659 var lastModified = xhr.getResponseHeader("Last-Modified"),
660 etag = xhr.getResponseHeader("Etag");
662 if ( lastModified ) {
663 jQuery.lastModified[url] = lastModified;
667 jQuery.etag[url] = etag;
670 return xhr.status === 304;
673 httpData: function( xhr, type, s ) {
674 var ct = xhr.getResponseHeader("content-type") || "",
675 xml = type === "xml" || !type && ct.indexOf("xml") >= 0,
676 data = xml ? xhr.responseXML : xhr.responseText;
678 if ( xml && data.documentElement.nodeName === "parsererror" ) {
679 jQuery.error( "parsererror" );
682 // Allow a pre-filtering function to sanitize the response
683 // s is checked to keep backwards compatibility
684 if ( s && s.dataFilter ) {
685 data = s.dataFilter( data, type );
688 // The filter can actually parse the response
689 if ( typeof data === "string" ) {
690 // Get the JavaScript object, if JSON is used.
691 if ( type === "json" || !type && ct.indexOf("json") >= 0 ) {
692 data = jQuery.parseJSON( data );
694 // If the type is "script", eval it in global context
695 } else if ( type === "script" || !type && ct.indexOf("javascript") >= 0 ) {
696 jQuery.globalEval( data );
706 * Create the request object; Microsoft failed to properly
707 * implement the XMLHttpRequest in IE7 (can't request local files),
708 * so we use the ActiveXObject when it is available
709 * Additionally XMLHttpRequest can be disabled in IE7/IE8 so
710 * we need a fallback.
712 if ( window.ActiveXObject ) {
713 jQuery.ajaxSettings.xhr = function() {
714 if ( window.location.protocol !== "file:" ) {
716 return new window.XMLHttpRequest();
721 return new window.ActiveXObject("Microsoft.XMLHTTP");
722 } catch(activeError) {}
726 // Does this browser support XHR requests?
727 jQuery.support.ajax = !!jQuery.ajaxSettings.xhr();