-jQuery.fn.extend({
- // Keep a copy of the old load
- _load: jQuery.fn.load,
+(function( jQuery ) {
+
+var jsc = jQuery.now(),
+ rscript = /<script\b[^<]*(?:(?!<\/script>)<[^<]*)*<\/script>/gi,
+ rselectTextarea = /^(?:select|textarea)/i,
+ rinput = /^(?:color|date|datetime|email|hidden|month|number|password|range|search|tel|text|time|url|week)$/i,
+ rnoContent = /^(?:GET|HEAD)$/,
+ rbracket = /\[\]$/,
+ jsre = /\=\?(&|$)/,
+ rquery = /\?/,
+ rts = /([?&])_=[^&]*/,
+ rurl = /^(\w+:)?\/\/([^\/?#]+)/,
+ r20 = /%20/g,
+ rhash = /#.*$/,
+
+ // Keep a copy of the old load method
+ _load = jQuery.fn.load;
+jQuery.fn.extend({
load: function( url, params, callback ) {
- if ( typeof url !== "string" )
- return this._load( url );
+ if ( typeof url !== "string" && _load ) {
+ return _load.apply( this, arguments );
+
+ // Don't do a request if no elements are being requested
+ } else if ( !this.length ) {
+ return this;
+ }
var off = url.indexOf(" ");
if ( off >= 0 ) {
var type = "GET";
// If the second parameter was provided
- if ( params )
+ if ( params ) {
// If it's a function
if ( jQuery.isFunction( params ) ) {
// We assume that it's the callback
params = null;
// Otherwise, build a param string
- } else if( typeof params === "object" ) {
- params = jQuery.param( params );
+ } else if ( typeof params === "object" ) {
+ params = jQuery.param( params, jQuery.ajaxSettings.traditional );
type = "POST";
}
+ }
var self = this;
type: type,
dataType: "html",
data: params,
- complete: function(res, status){
+ complete: function( res, status ) {
// If successful, inject the HTML into all the matched elements
- if ( status == "success" || status == "notmodified" )
+ if ( status === "success" || status === "notmodified" ) {
// See if a selector was specified
self.html( selector ?
// Create a dummy div to hold the results
- jQuery("<div/>")
+ jQuery("<div>")
// inject the contents of the document in, removing the scripts
// to avoid any 'Permission Denied' errors in IE
- .append(res.responseText.replace(/<script(.|\s)*?\/script>/g, ""))
+ .append(res.responseText.replace(rscript, ""))
// Locate the specified elements
.find(selector) :
// If not, just inject the full result
res.responseText );
+ }
- if( callback )
+ if ( callback ) {
self.each( callback, [res.responseText, status, res] );
+ }
}
});
+
return this;
},
serialize: function() {
return jQuery.param(this.serializeArray());
},
+
serializeArray: function() {
- return this.map(function(){
+ return this.map(function() {
return this.elements ? jQuery.makeArray(this.elements) : this;
})
- .filter(function(){
+ .filter(function() {
return this.name && !this.disabled &&
- (this.checked || /select|textarea/i.test(this.nodeName) ||
- /text|hidden|password|search/i.test(this.type));
+ (this.checked || rselectTextarea.test(this.nodeName) ||
+ rinput.test(this.type));
})
- .map(function(i, elem){
+ .map(function( i, elem ) {
var val = jQuery(this).val();
- return val == null ? null :
+
+ return val == null ?
+ null :
jQuery.isArray(val) ?
- jQuery.map( val, function(val, i){
- return {name: elem.name, value: val};
+ jQuery.map( val, function( val, i ) {
+ return { name: elem.name, value: val };
}) :
- {name: elem.name, value: val};
+ { name: elem.name, value: val };
}).get();
}
});
// Attach a bunch of functions for handling common AJAX events
-jQuery.each( "ajaxStart,ajaxStop,ajaxComplete,ajaxError,ajaxSuccess,ajaxSend".split(","), function(i,o){
- jQuery.fn[o] = function(f){
+jQuery.each( "ajaxStart ajaxStop ajaxComplete ajaxError ajaxSuccess ajaxSend".split(" "), function( i, o ) {
+ jQuery.fn[o] = function( f ) {
return this.bind(o, f);
};
});
-var jsc = now();
-
jQuery.extend({
-
get: function( url, data, callback, type ) {
- // shift arguments if data argument was ommited
+ // shift arguments if data argument was omited
if ( jQuery.isFunction( data ) ) {
+ type = type || callback;
callback = data;
data = null;
}
},
post: function( url, data, callback, type ) {
+ // shift arguments if data argument was omited
if ( jQuery.isFunction( data ) ) {
+ type = type || callback;
callback = data;
data = {};
}
data: null,
username: null,
password: null,
+ traditional: false,
*/
- // Create the request object; Microsoft failed to properly
- // implement the XMLHttpRequest in IE7, so we use the ActiveXObject when it is available
// This function can be overriden by calling jQuery.ajaxSetup
- xhr:function(){
- return window.ActiveXObject ? new ActiveXObject("Microsoft.XMLHTTP") : new XMLHttpRequest();
+ xhr: function() {
+ return new window.XMLHttpRequest();
},
accepts: {
xml: "application/xml, text/xml",
}
},
- // Last-Modified header cache for next request
- lastModified: {},
+ ajax: function( origSettings ) {
+ var s = jQuery.extend(true, {}, jQuery.ajaxSettings, origSettings),
+ jsonp, status, data, type = s.type.toUpperCase(), noContent = rnoContent.test(type);
- ajax: function( s ) {
- // Extend the settings, but re-extend 's' so that it can be
- // checked again later (in the test suite, specifically)
- s = jQuery.extend(true, s, jQuery.extend(true, {}, jQuery.ajaxSettings, s));
+ s.url = s.url.replace( rhash, "" );
- var jsonp, jsre = /=\?(&|$)/g, status, data,
- type = s.type.toUpperCase();
+ // Use original (not extended) context object if it was provided
+ s.context = origSettings && origSettings.context != null ? origSettings.context : s;
// convert data if not already a string
- if ( s.data && s.processData && typeof s.data !== "string" )
- s.data = jQuery.param(s.data);
+ if ( s.data && s.processData && typeof s.data !== "string" ) {
+ s.data = jQuery.param( s.data, s.traditional );
+ }
// Handle JSONP Parameter Callbacks
- if ( s.dataType == "jsonp" ) {
- if ( type == "GET" ) {
- if ( !s.url.match(jsre) )
- s.url += (s.url.match(/\?/) ? "&" : "?") + (s.jsonp || "callback") + "=?";
- } else if ( !s.data || !s.data.match(jsre) )
+ if ( s.dataType === "jsonp" ) {
+ if ( type === "GET" ) {
+ if ( !jsre.test( s.url ) ) {
+ s.url += (rquery.test( s.url ) ? "&" : "?") + (s.jsonp || "callback") + "=?";
+ }
+ } else if ( !s.data || !jsre.test(s.data) ) {
s.data = (s.data ? s.data + "&" : "") + (s.jsonp || "callback") + "=?";
+ }
s.dataType = "json";
}
// Build temporary JSONP function
- if ( s.dataType == "json" && (s.data && s.data.match(jsre) || s.url.match(jsre)) ) {
- jsonp = "jsonp" + jsc++;
+ if ( s.dataType === "json" && (s.data && jsre.test(s.data) || jsre.test(s.url)) ) {
+ jsonp = s.jsonpCallback || ("jsonp" + jsc++);
// Replace the =? sequence both in the query string and the data
- if ( s.data )
+ if ( s.data ) {
s.data = (s.data + "").replace(jsre, "=" + jsonp + "$1");
+ }
+
s.url = s.url.replace(jsre, "=" + jsonp + "$1");
// We need to make sure
s.dataType = "script";
// Handle JSONP-style loading
- window[ jsonp ] = function(tmp){
+ var customJsonp = window[ jsonp ];
+
+ window[ jsonp ] = function( tmp ) {
+ if ( jQuery.isFunction( customJsonp ) ) {
+ customJsonp( tmp );
+
+ } else {
+ // Garbage collect
+ window[ jsonp ] = undefined;
+
+ try {
+ delete window[ jsonp ];
+ } catch( jsonpError ) {}
+ }
+
data = tmp;
- success();
- complete();
- // Garbage collect
- window[ jsonp ] = undefined;
- try{ delete window[ jsonp ]; } catch(e){}
- if ( head )
+ jQuery.handleSuccess( s, xhr, status, data );
+ jQuery.handleComplete( s, xhr, status, data );
+
+ if ( head ) {
head.removeChild( script );
+ }
};
}
- if ( s.dataType == "script" && s.cache == null )
+ if ( s.dataType === "script" && s.cache === null ) {
s.cache = false;
+ }
+
+ if ( s.cache === false && noContent ) {
+ var ts = jQuery.now();
- if ( s.cache === false && type == "GET" ) {
- var ts = now();
// try replacing _= if it is there
- var ret = s.url.replace(/(\?|&)_=.*?(&|$)/, "$1_=" + ts + "$2");
+ var ret = s.url.replace(rts, "$1_=" + ts);
+
// if nothing was replaced, add timestamp to the end
- s.url = ret + ((ret == s.url) ? (s.url.match(/\?/) ? "&" : "?") + "_=" + ts : "");
+ s.url = ret + ((ret === s.url) ? (rquery.test(s.url) ? "&" : "?") + "_=" + ts : "");
}
- // If data is available, append data to url for get requests
- if ( s.data && type == "GET" ) {
- s.url += (s.url.match(/\?/) ? "&" : "?") + s.data;
+ // If data is available, append data to url for GET/HEAD requests
+ if ( s.data && noContent ) {
+ s.url += (rquery.test(s.url) ? "&" : "?") + s.data;
}
// Watch for a new set of requests
- if ( s.global && ! jQuery.active++ )
+ if ( s.global && jQuery.active++ === 0 ) {
jQuery.event.trigger( "ajaxStart" );
+ }
// Matches an absolute URL, and saves the domain
- var parts = /^(\w+:)?\/\/([^\/?#]+)/.exec( s.url );
+ var parts = rurl.exec( s.url ),
+ remote = parts && (parts[1] && parts[1].toLowerCase() !== location.protocol || parts[2].toLowerCase() !== location.host);
// If we're requesting a remote document
// and trying to load JSON or Script with a GET
- if ( s.dataType == "script" && type == "GET" && parts
- && ( parts[1] && parts[1] != location.protocol || parts[2] != location.host )){
-
- var head = document.getElementsByTagName("head")[0];
+ if ( s.dataType === "script" && type === "GET" && remote ) {
+ var head = document.getElementsByTagName("head")[0] || document.documentElement;
var script = document.createElement("script");
- script.src = s.url;
- if (s.scriptCharset)
+ if ( s.scriptCharset ) {
script.charset = s.scriptCharset;
+ }
+ script.src = s.url;
// Handle Script loading
if ( !jsonp ) {
var done = false;
// Attach handlers for all browsers
- script.onload = script.onreadystatechange = function(){
+ script.onload = script.onreadystatechange = function() {
if ( !done && (!this.readyState ||
- this.readyState == "loaded" || this.readyState == "complete") ) {
+ this.readyState === "loaded" || this.readyState === "complete") ) {
done = true;
- success();
- complete();
+ jQuery.handleSuccess( s, xhr, status, data );
+ jQuery.handleComplete( s, xhr, status, data );
// Handle memory leak in IE
script.onload = script.onreadystatechange = null;
- head.removeChild( script );
+ if ( head && script.parentNode ) {
+ head.removeChild( script );
+ }
}
};
}
// Create the request object
var xhr = s.xhr();
+ if ( !xhr ) {
+ return;
+ }
+
// Open the socket
// Passing null username, generates a login popup on Opera (#2865)
- if( s.username )
+ if ( s.username ) {
xhr.open(type, s.url, s.async, s.username, s.password);
- else
+ } else {
xhr.open(type, s.url, s.async);
+ }
// Need an extra try/catch for cross domain requests in Firefox 3
try {
- // Set the correct header, if data is being sent
- if ( s.data )
+ // Set content-type if data specified and content-body is valid for this type
+ if ( (s.data != null && !noContent) || (origSettings && origSettings.contentType) ) {
xhr.setRequestHeader("Content-Type", s.contentType);
+ }
- // Set the If-Modified-Since header, if ifModified mode.
- if ( s.ifModified )
- xhr.setRequestHeader("If-Modified-Since",
- jQuery.lastModified[s.url] || "Thu, 01 Jan 1970 00:00:00 GMT" );
+ // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
+ if ( s.ifModified ) {
+ if ( jQuery.lastModified[s.url] ) {
+ xhr.setRequestHeader("If-Modified-Since", jQuery.lastModified[s.url]);
+ }
+
+ if ( jQuery.etag[s.url] ) {
+ xhr.setRequestHeader("If-None-Match", jQuery.etag[s.url]);
+ }
+ }
// Set header so the called script knows that it's an XMLHttpRequest
- xhr.setRequestHeader("X-Requested-With", "XMLHttpRequest");
+ // Only send the header if it's not a remote XHR
+ if ( !remote ) {
+ xhr.setRequestHeader("X-Requested-With", "XMLHttpRequest");
+ }
// Set the Accepts header for the server, depending on the dataType
xhr.setRequestHeader("Accept", s.dataType && s.accepts[ s.dataType ] ?
- s.accepts[ s.dataType ] + ", */*" :
+ s.accepts[ s.dataType ] + ", */*; q=0.01" :
s.accepts._default );
- } catch(e){}
+ } catch( headerError ) {}
// Allow custom headers/mimetypes and early abort
- if ( s.beforeSend && s.beforeSend(xhr, s) === false ) {
+ if ( s.beforeSend && s.beforeSend.call(s.context, xhr, s) === false ) {
// Handle the global AJAX counter
- if ( s.global && ! --jQuery.active )
+ if ( s.global && jQuery.active-- === 1 ) {
jQuery.event.trigger( "ajaxStop" );
+ }
+
// close opended socket
xhr.abort();
return false;
}
- if ( s.global )
- jQuery.event.trigger("ajaxSend", [xhr, s]);
+ if ( s.global ) {
+ jQuery.triggerGlobal( s, "ajaxSend", [xhr, s] );
+ }
// Wait for a response to come back
- var onreadystatechange = function(isTimeout){
- // The request was aborted, clear the interval and decrement jQuery.active
- if (xhr.readyState == 0) {
- if (ival) {
- // clear poll interval
- clearInterval(ival);
- ival = null;
- // Handle the global AJAX counter
- if ( s.global && ! --jQuery.active )
- jQuery.event.trigger( "ajaxStop" );
+ var onreadystatechange = xhr.onreadystatechange = function( isTimeout ) {
+ // The request was aborted
+ if ( !xhr || xhr.readyState === 0 || isTimeout === "abort" ) {
+ // Opera doesn't call onreadystatechange before this point
+ // so we simulate the call
+ if ( !requestDone ) {
+ jQuery.handleComplete( s, xhr, status, data );
}
+
+ requestDone = true;
+ if ( xhr ) {
+ xhr.onreadystatechange = jQuery.noop;
+ }
+
// The transfer is complete and the data is available, or the request timed out
- } else if ( !requestDone && xhr && (xhr.readyState == 4 || isTimeout == "timeout") ) {
+ } else if ( !requestDone && xhr && (xhr.readyState === 4 || isTimeout === "timeout") ) {
requestDone = true;
+ xhr.onreadystatechange = jQuery.noop;
- // clear poll interval
- if (ival) {
- clearInterval(ival);
- ival = null;
- }
+ status = isTimeout === "timeout" ?
+ "timeout" :
+ !jQuery.httpSuccess( xhr ) ?
+ "error" :
+ s.ifModified && jQuery.httpNotModified( xhr, s.url ) ?
+ "notmodified" :
+ "success";
- status = isTimeout == "timeout" ? "timeout" :
- !jQuery.httpSuccess( xhr ) ? "error" :
- s.ifModified && jQuery.httpNotModified( xhr, s.url ) ? "notmodified" :
- "success";
+ var errMsg;
- if ( status == "success" ) {
+ if ( status === "success" ) {
// Watch for, and catch, XML document parse errors
try {
// process the data (runs the xml through httpData regardless of callback)
data = jQuery.httpData( xhr, s.dataType, s );
- } catch(e) {
+ } catch( parserError ) {
status = "parsererror";
+ errMsg = parserError;
}
}
// Make sure that the request was successful or notmodified
- if ( status == "success" ) {
- // Cache Last-Modified header, if ifModified mode.
- var modRes;
- try {
- modRes = xhr.getResponseHeader("Last-Modified");
- } catch(e) {} // swallow exception thrown by FF if header is not available
-
- if ( s.ifModified && modRes )
- jQuery.lastModified[s.url] = modRes;
-
+ if ( status === "success" || status === "notmodified" ) {
// JSONP handles its own success callback
- if ( !jsonp )
- success();
- } else
- jQuery.handleError(s, xhr, status);
+ if ( !jsonp ) {
+ jQuery.handleSuccess( s, xhr, status, data );
+ }
+ } else {
+ jQuery.handleError( s, xhr, status, errMsg );
+ }
// Fire the complete handlers
- complete();
+ if ( !jsonp ) {
+ jQuery.handleComplete( s, xhr, status, data );
+ }
- if ( isTimeout )
+ if ( isTimeout === "timeout" ) {
xhr.abort();
+ }
// Stop memory leaks
- if ( s.async )
+ if ( s.async ) {
xhr = null;
+ }
}
};
- if ( s.async ) {
- // don't attach the handler to the request, just poll it instead
- var ival = setInterval(onreadystatechange, 13);
+ // Override the abort handler, if we can (IE 6 doesn't allow it, but that's OK)
+ // Opera doesn't fire onreadystatechange at all on abort
+ try {
+ var oldAbort = xhr.abort;
+ xhr.abort = function() {
+ if ( xhr ) {
+ // oldAbort has no call property in IE7 so
+ // just do it this way, which works in all
+ // browsers
+ Function.prototype.call.call( oldAbort, xhr );
+ }
- // Timeout checker
- if ( s.timeout > 0 )
- setTimeout(function(){
- // Check to see if the request is still happening
- if ( xhr && !requestDone )
- onreadystatechange( "timeout" );
- }, s.timeout);
+ onreadystatechange( "abort" );
+ };
+ } catch( abortError ) {}
+
+ // Timeout checker
+ if ( s.async && s.timeout > 0 ) {
+ setTimeout(function() {
+ // Check to see if the request is still happening
+ if ( xhr && !requestDone ) {
+ onreadystatechange( "timeout" );
+ }
+ }, s.timeout);
}
// Send the data
try {
- xhr.send( type === "POST" ? s.data : null );
- } catch(e) {
- jQuery.handleError(s, xhr, null, e);
+ xhr.send( noContent || s.data == null ? null : s.data );
+
+ } catch( sendError ) {
+ jQuery.handleError( s, xhr, null, sendError );
+
+ // Fire the complete handlers
+ jQuery.handleComplete( s, xhr, status, data );
}
// firefox 1.5 doesn't fire statechange for sync requests
- if ( !s.async )
+ if ( !s.async ) {
onreadystatechange();
+ }
- function success(){
- // If a local callback was specified, fire it and pass it the data
- if ( s.success )
- s.success( data, status );
+ // return XMLHttpRequest to allow aborting the request etc.
+ return xhr;
+ },
- // Fire the global callback
- if ( s.global )
- jQuery.event.trigger( "ajaxSuccess", [xhr, s] );
+ // Serialize an array of form elements or a set of
+ // key/values into a query string
+ param: function( a, traditional ) {
+ var s = [],
+ add = function( key, value ) {
+ // If value is a function, invoke it and return its value
+ value = jQuery.isFunction(value) ? value() : value;
+ s[ s.length ] = encodeURIComponent(key) + "=" + encodeURIComponent(value);
+ };
+
+ // Set traditional to true for jQuery <= 1.3.2 behavior.
+ if ( traditional === undefined ) {
+ traditional = jQuery.ajaxSettings.traditional;
+ }
+
+ // If an array was passed in, assume that it is an array of form elements.
+ if ( jQuery.isArray(a) || a.jquery ) {
+ // Serialize the form elements
+ jQuery.each( a, function() {
+ add( this.name, this.value );
+ });
+
+ } else {
+ // If traditional, encode the "old" way (the way 1.3.2 or older
+ // did it), otherwise encode params recursively.
+ for ( var prefix in a ) {
+ buildParams( prefix, a[prefix], traditional, add );
+ }
}
- function complete(){
- // Process result
- if ( s.complete )
- s.complete(xhr, status);
-
- // The request was completed
- if ( s.global )
- jQuery.event.trigger( "ajaxComplete", [xhr, s] );
+ // Return the resulting serialization
+ return s.join("&").replace(r20, "+");
+ }
+});
- // Handle the global AJAX counter
- if ( s.global && ! --jQuery.active )
- jQuery.event.trigger( "ajaxStop" );
+function buildParams( prefix, obj, traditional, add ) {
+ if ( jQuery.isArray(obj) && obj.length ) {
+ // Serialize array item.
+ jQuery.each( obj, function( i, v ) {
+ if ( traditional || rbracket.test( prefix ) ) {
+ // Treat each array item as a scalar.
+ add( prefix, v );
+
+ } else {
+ // If array item is non-scalar (array or object), encode its
+ // numeric index to resolve deserialization ambiguity issues.
+ // Note that rack (as of 1.0.0) can't currently deserialize
+ // nested arrays properly, and attempting to do so may cause
+ // a server error. Possible fixes are to modify rack's
+ // deserialization algorithm or to provide an option or flag
+ // to force array serialization to be shallow.
+ buildParams( prefix + "[" + ( typeof v === "object" || jQuery.isArray(v) ? i : "" ) + "]", v, traditional, add );
+ }
+ });
+
+ } else if ( !traditional && obj != null && typeof obj === "object" ) {
+ if ( jQuery.isEmptyObject( obj ) ) {
+ add( prefix, "" );
+
+ // Serialize object item.
+ } else {
+ jQuery.each( obj, function( k, v ) {
+ buildParams( prefix + "[" + k + "]", v, traditional, add );
+ });
}
+
+ } else {
+ // Serialize scalar item.
+ add( prefix, obj );
+ }
+}
- // return XMLHttpRequest to allow aborting the request etc.
- return xhr;
- },
+// This is still on the jQuery object... for now
+// Want to move this to jQuery.ajax some day
+jQuery.extend({
+
+ // Counter for holding the number of active queries
+ active: 0,
+
+ // Last-Modified header cache for next request
+ lastModified: {},
+ etag: {},
handleError: function( s, xhr, status, e ) {
// If a local callback was specified, fire it
- if ( s.error ) s.error( xhr, status, e );
+ if ( s.error ) {
+ s.error.call( s.context, xhr, status, e );
+ }
// Fire the global callback
- if ( s.global )
- jQuery.event.trigger( "ajaxError", [xhr, s, e] );
+ if ( s.global ) {
+ jQuery.triggerGlobal( s, "ajaxError", [xhr, s, e] );
+ }
},
- // Counter for holding the number of active queries
- active: 0,
+ handleSuccess: function( s, xhr, status, data ) {
+ // If a local callback was specified, fire it and pass it the data
+ if ( s.success ) {
+ s.success.call( s.context, data, status, xhr );
+ }
+
+ // Fire the global callback
+ if ( s.global ) {
+ jQuery.triggerGlobal( s, "ajaxSuccess", [xhr, s] );
+ }
+ },
+
+ handleComplete: function( s, xhr, status ) {
+ // Process result
+ if ( s.complete ) {
+ s.complete.call( s.context, xhr, status );
+ }
+
+ // The request was completed
+ if ( s.global ) {
+ jQuery.triggerGlobal( s, "ajaxComplete", [xhr, s] );
+ }
+
+ // Handle the global AJAX counter
+ if ( s.global && jQuery.active-- === 1 ) {
+ jQuery.event.trigger( "ajaxStop" );
+ }
+ },
+
+ triggerGlobal: function( s, type, args ) {
+ (s.context && s.context.url == null ? jQuery(s.context) : jQuery.event).trigger(type, args);
+ },
// Determines if an XMLHttpRequest was successful or not
httpSuccess: function( xhr ) {
try {
// IE error sometimes returns 1223 when it should be 204 so treat it as success, see #1450
- return !xhr.status && location.protocol == "file:" ||
- ( xhr.status >= 200 && xhr.status < 300 ) || xhr.status == 304 || xhr.status == 1223;
- } catch(e){}
+ return !xhr.status && location.protocol === "file:" ||
+ xhr.status >= 200 && xhr.status < 300 ||
+ xhr.status === 304 || xhr.status === 1223;
+ } catch(e) {}
+
return false;
},
// Determines if an XMLHttpRequest returns NotModified
httpNotModified: function( xhr, url ) {
- try {
- var xhrRes = xhr.getResponseHeader("Last-Modified");
+ var lastModified = xhr.getResponseHeader("Last-Modified"),
+ etag = xhr.getResponseHeader("Etag");
- // Firefox always returns 200. check Last-Modified date
- return xhr.status == 304 || xhrRes == jQuery.lastModified[url];
- } catch(e){}
- return false;
+ if ( lastModified ) {
+ jQuery.lastModified[url] = lastModified;
+ }
+
+ if ( etag ) {
+ jQuery.etag[url] = etag;
+ }
+
+ return xhr.status === 304;
},
httpData: function( xhr, type, s ) {
- var ct = xhr.getResponseHeader("content-type"),
- xml = type == "xml" || !type && ct && ct.indexOf("xml") >= 0,
+ var ct = xhr.getResponseHeader("content-type") || "",
+ xml = type === "xml" || !type && ct.indexOf("xml") >= 0,
data = xml ? xhr.responseXML : xhr.responseText;
- if ( xml && data.documentElement.tagName == "parsererror" ) {
- throw "parsererror";
+ if ( xml && data.documentElement.nodeName === "parsererror" ) {
+ jQuery.error( "parsererror" );
}
// Allow a pre-filtering function to sanitize the response
- // s != null is checked to keep backwards compatibility
+ // s is checked to keep backwards compatibility
if ( s && s.dataFilter ) {
data = s.dataFilter( data, type );
}
// The filter can actually parse the response
if ( typeof data === "string" ) {
+ // Get the JavaScript object, if JSON is used.
+ if ( type === "json" || !type && ct.indexOf("json") >= 0 ) {
+ data = jQuery.parseJSON( data );
// If the type is "script", eval it in global context
- if ( type === "script" ) {
+ } else if ( type === "script" || !type && ct.indexOf("javascript") >= 0 ) {
jQuery.globalEval( data );
}
-
- // Get the JavaScript object, if JSON is used.
- if ( type == "json" ) {
- if ( typeof JSON === "object" && JSON.parse ) {
- data = JSON.parse( data );
- } else {
- data = (new Function("return " + data))();
- }
- }
}
return data;
- },
-
- // Serialize an array of form elements or a set of
- // key/values into a query string
- param: function( a ) {
- var s = [ ];
+ }
- function add( key, value ){
- s[ s.length ] = encodeURIComponent(key) + '=' + encodeURIComponent(value);
- };
+});
- // If an array was passed in, assume that it is an array
- // of form elements
- if ( jQuery.isArray(a) || a.jquery )
- // Serialize the form elements
- jQuery.each( a, function(){
- add( this.name, this.value );
- });
+/*
+ * Create the request object; Microsoft failed to properly
+ * implement the XMLHttpRequest in IE7 (can't request local files),
+ * so we use the ActiveXObject when it is available
+ * Additionally XMLHttpRequest can be disabled in IE7/IE8 so
+ * we need a fallback.
+ */
+if ( window.ActiveXObject ) {
+ jQuery.ajaxSettings.xhr = function() {
+ if ( window.location.protocol !== "file:" ) {
+ try {
+ return new window.XMLHttpRequest();
+ } catch(xhrError) {}
+ }
- // Otherwise, assume that it's an object of key/value pairs
- else
- // Serialize the key/values
- for ( var j in a )
- // If the value is an array then the key names need to be repeated
- if ( jQuery.isArray(a[j]) )
- jQuery.each( a[j], function(){
- add( j, this );
- });
- else
- add( j, jQuery.isFunction(a[j]) ? a[j]() : a[j] );
+ try {
+ return new window.ActiveXObject("Microsoft.XMLHTTP");
+ } catch(activeError) {}
+ };
+}
- // Return the resulting serialization
- return s.join("&").replace(/%20/g, "+");
- }
+// Does this browser support XHR requests?
+jQuery.support.ajax = !!jQuery.ajaxSettings.xhr();
-});
+})( jQuery );