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Ticket #4113: ajax.js
File ajax.js, 15.1 KB (added by andr3a, February 12, 2009 03:40PM UTC)
patch for ajax,js
jQuery.fn.extend({
// Keep a copy of the old load
_load: jQuery.fn.load,
load: function( url, params, callback ) {
if ( typeof url !== "string" )
return this._load( url );
var off = url.indexOf(" ");
if ( off >= 0 ) {
var selector = url.slice(off, url.length);
url = url.slice(0, off);
}
// Default to a GET request
var type = "GET";
// If the second parameter was provided
if ( params )
// If it's a function
if ( jQuery.isFunction( params ) ) {
// We assume that it's the callback
callback = params;
params = null;
// Otherwise, build a param string
} else if( typeof params === "object" ) {
params = jQuery.param( params );
type = "POST";
}
var self = this;
// Request the remote document
jQuery.ajax({
url: url,
type: type,
dataType: "html",
data: params,
complete: function(res, status){
// If successful, inject the HTML into all the matched elements
if ( status == "success" || status == "notmodified" )
// See if a selector was specified
self.html( selector ?
// Create a dummy div to hold the results
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, ""))
// Locate the specified elements
.find(selector) :
// If not, just inject the full result
res.responseText );
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.elements ? jQuery.makeArray(this.elements) : this;
})
.filter(function(){
return this.name && !this.disabled &&
(this.checked || /select|textarea/i.test(this.nodeName) ||
/text|hidden|password/i.test(this.type));
})
.map(function(i, elem){
var val = jQuery(this).val();
return val == null ? null :
jQuery.isArray(val) ?
jQuery.map( val, function(val, i){
return {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){
return this.bind(o, f);
};
});
var jsc = now();
jQuery.extend({
get: function( url, data, callback, type ) {
// shift arguments if data argument was ommited
if ( jQuery.isFunction( data ) ) {
callback = data;
data = null;
}
return jQuery.ajax({
type: "GET",
url: url,
data: data,
success: callback,
dataType: type
});
},
getScript: function( url, callback ) {
return jQuery.get(url, null, callback, "script");
},
getJSON: function( url, data, callback ) {
return jQuery.get(url, data, callback, "json");
},
post: function( url, data, callback, type ) {
if ( jQuery.isFunction( data ) ) {
callback = data;
data = {};
}
return jQuery.ajax({
type: "POST",
url: url,
data: data,
success: callback,
dataType: type
});
},
ajaxSetup: function( settings ) {
jQuery.extend( jQuery.ajaxSettings, settings );
},
ajaxSettings: {
url: location.href,
global: true,
type: "GET",
contentType: "application/x-www-form-urlencoded",
processData: true,
async: true,
/*
timeout: 0,
data: null,
username: null,
password: null,
*/
// 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();
},
accepts: {
xml: "application/xml, text/xml",
html: "text/html",
script: "text/javascript, application/javascript",
json: "application/json, text/javascript",
text: "text/plain",
_default: "*/*"
}
},
// Last-Modified header cache for next request
lastModified: {},
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));
var jsonp, jsre = /=\?(&|$)/g, status, data,
type = s.type.toUpperCase();
// convert data if not already a string
if ( s.data && s.processData && typeof s.data !== "string" )
s.data = jQuery.param(s.data);
// Handle JSONP Parameter Callbacks
if ( s.dataType == "jsonp" ) {
if ( type == "GET" ) {
if ( !jsre.test(s.url) )
s.url += (/\?/.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 && jsre.test(s.data) || jsre.test(s.url)) ) {
jsonp = "jsonp" + jsc++;
// Replace the =? sequence both in the query string and the data
if ( s.data )
s.data = (s.data + "").replace(jsre, "=" + jsonp + "$1");
s.url = s.url.replace(jsre, "=" + jsonp + "$1");
// We need to make sure
// that a JSONP style response is executed properly
s.dataType = "script";
// Handle JSONP-style loading
window[ jsonp ] = function(tmp){
data = tmp;
success();
complete();
// Garbage collect
window[ jsonp ] = undefined;
try{ delete window[ jsonp ]; } catch(e){}
if ( head )
head.removeChild( script );
};
}
if ( s.dataType == "script" && s.cache == null )
s.cache = false;
if ( s.cache === false && type == "GET" ) {
var ts = now();
// try replacing _= if it is there
var ret = s.url.replace(/(\?|&)_=.*?(&|$)/, "$1_=" + ts + "$2");
// if nothing was replaced, add timestamp to the end
s.url = ret + ((ret == s.url) ? (/\?/.test(s.url) ? "&" : "?") + "_=" + ts : "");
}
// If data is available, append data to url for get requests
if ( s.data && type == "GET" ) {
s.url += (/\?/.test(s.url) ? "&" : "?") + s.data;
// IE likes to send both get and post data, prevent this
s.data = null;
}
// Watch for a new set of requests
if ( s.global && ! jQuery.active++ )
jQuery.event.trigger( "ajaxStart" );
// Matches an absolute URL, and saves the domain
var parts = /^(\w+:)?\/\/([^\/?#]+)/.exec( s.url );
// 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];
var script = document.createElement("script");
script.src = s.url;
if (s.scriptCharset)
script.charset = s.scriptCharset;
// Handle Script loading
if ( !jsonp ) {
var done = false;
// Attach handlers for all browsers
script.onload = script.onreadystatechange = function(){
if ( !done && (!this.readyState ||
this.readyState == "loaded" || this.readyState == "complete") ) {
done = true;
success();
complete();
// Handle memory leak in IE
script.onload = script.onreadystatechange = null;
head.removeChild( script );
}
};
}
head.appendChild(script);
// We handle everything using the script element injection
return undefined;
}
var requestDone = false;
// Create the request object
var xhr = s.xhr();
// Open the socket
// Passing null username, generates a login popup on Opera (#2865)
if( s.username )
xhr.open(type, s.url, s.async, s.username, s.password);
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 )
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 header so the called script knows that it's an XMLHttpRequest
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._default );
} catch(e){}
// Allow custom headers/mimetypes and early abort
if ( s.beforeSend && s.beforeSend(xhr, s) === false ) {
// Handle the global AJAX counter
if ( s.global && ! --jQuery.active )
jQuery.event.trigger( "ajaxStop" );
// close opended socket
xhr.abort();
return false;
}
if ( s.global )
jQuery.event.trigger("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" );
}
// The transfer is complete and the data is available, or the request timed out
} else if ( !requestDone && xhr && (xhr.readyState == 4 || isTimeout == "timeout") ) {
requestDone = true;
// 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";
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) {
status = "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;
// JSONP handles its own success callback
if ( !jsonp )
success();
} else
jQuery.handleError(s, xhr, status);
// Fire the complete handlers
complete();
if ( isTimeout )
xhr.abort();
// Stop memory leaks
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);
// Timeout checker
if ( 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(s.data);
} catch(e) {
jQuery.handleError(s, xhr, null, e);
}
// firefox 1.5 doesn't fire statechange for sync requests
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 );
// Fire the global callback
if ( s.global )
jQuery.event.trigger( "ajaxSuccess", [xhr, s] );
}
function complete(){
// Process result
if ( s.complete )
s.complete(xhr, status);
// The request was completed
if ( s.global )
jQuery.event.trigger( "ajaxComplete", [xhr, s] );
// Handle the global AJAX counter
if ( s.global && ! --jQuery.active )
jQuery.event.trigger( "ajaxStop" );
}
// return XMLHttpRequest to allow aborting the request etc.
return xhr;
},
handleError: function( s, xhr, status, e ) {
// If a local callback was specified, fire it
if ( s.error ) s.error( xhr, status, e );
// Fire the global callback
if ( s.global )
jQuery.event.trigger( "ajaxError", [xhr, s, e] );
},
// Counter for holding the number of active queries
active: 0,
// 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 false;
},
// Determines if an XMLHttpRequest returns NotModified
httpNotModified: function( xhr, url ) {
try {
var xhrRes = xhr.getResponseHeader("Last-Modified");
// Firefox always returns 200. check Last-Modified date
return xhr.status == 304 || xhrRes == jQuery.lastModified[url];
} catch(e){}
return false;
},
httpData: function( xhr, type, s ) {
var ct = xhr.getResponseHeader("content-type"),
xml = type == "xml" || !type && ct && ct.indexOf("xml") >= 0,
data = xml ? xhr.responseXML : xhr.responseText;
if ( xml && data.documentElement.tagName == "parsererror" )
throw "parsererror";
// Allow a pre-filtering function to sanitize the response
// s != null 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" ){
// If the type is "script", eval it in global context
if ( type == "script" )
jQuery.globalEval( data );
// Get the JavaScript object, if JSON is used.
if ( type == "json" )
data = window["eval"]("(" + 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 );
});
// 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] );
// Return the resulting serialization
return s.join("&").replace(/%20/g, "+");
}
});
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Original Format
File ajax.js, 15.1 KB (added by andr3a, February 12, 2009 03:40PM UTC)
patch for ajax,js
jQuery.fn.extend({
// Keep a copy of the old load
_load: jQuery.fn.load,
load: function( url, params, callback ) {
if ( typeof url !== "string" )
return this._load( url );
var off = url.indexOf(" ");
if ( off >= 0 ) {
var selector = url.slice(off, url.length);
url = url.slice(0, off);
}
// Default to a GET request
var type = "GET";
// If the second parameter was provided
if ( params )
// If it's a function
if ( jQuery.isFunction( params ) ) {
// We assume that it's the callback
callback = params;
params = null;
// Otherwise, build a param string
} else if( typeof params === "object" ) {
params = jQuery.param( params );
type = "POST";
}
var self = this;
// Request the remote document
jQuery.ajax({
url: url,
type: type,
dataType: "html",
data: params,
complete: function(res, status){
// If successful, inject the HTML into all the matched elements
if ( status == "success" || status == "notmodified" )
// See if a selector was specified
self.html( selector ?
// Create a dummy div to hold the results
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, ""))
// Locate the specified elements
.find(selector) :
// If not, just inject the full result
res.responseText );
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.elements ? jQuery.makeArray(this.elements) : this;
})
.filter(function(){
return this.name && !this.disabled &&
(this.checked || /select|textarea/i.test(this.nodeName) ||
/text|hidden|password/i.test(this.type));
})
.map(function(i, elem){
var val = jQuery(this).val();
return val == null ? null :
jQuery.isArray(val) ?
jQuery.map( val, function(val, i){
return {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){
return this.bind(o, f);
};
});
var jsc = now();
jQuery.extend({
get: function( url, data, callback, type ) {
// shift arguments if data argument was ommited
if ( jQuery.isFunction( data ) ) {
callback = data;
data = null;
}
return jQuery.ajax({
type: "GET",
url: url,
data: data,
success: callback,
dataType: type
});
},
getScript: function( url, callback ) {
return jQuery.get(url, null, callback, "script");
},
getJSON: function( url, data, callback ) {
return jQuery.get(url, data, callback, "json");
},
post: function( url, data, callback, type ) {
if ( jQuery.isFunction( data ) ) {
callback = data;
data = {};
}
return jQuery.ajax({
type: "POST",
url: url,
data: data,
success: callback,
dataType: type
});
},
ajaxSetup: function( settings ) {
jQuery.extend( jQuery.ajaxSettings, settings );
},
ajaxSettings: {
url: location.href,
global: true,
type: "GET",
contentType: "application/x-www-form-urlencoded",
processData: true,
async: true,
/*
timeout: 0,
data: null,
username: null,
password: null,
*/
// 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();
},
accepts: {
xml: "application/xml, text/xml",
html: "text/html",
script: "text/javascript, application/javascript",
json: "application/json, text/javascript",
text: "text/plain",
_default: "*/*"
}
},
// Last-Modified header cache for next request
lastModified: {},
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));
var jsonp, jsre = /=\?(&|$)/g, status, data,
type = s.type.toUpperCase();
// convert data if not already a string
if ( s.data && s.processData && typeof s.data !== "string" )
s.data = jQuery.param(s.data);
// Handle JSONP Parameter Callbacks
if ( s.dataType == "jsonp" ) {
if ( type == "GET" ) {
if ( !jsre.test(s.url) )
s.url += (/\?/.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 && jsre.test(s.data) || jsre.test(s.url)) ) {
jsonp = "jsonp" + jsc++;
// Replace the =? sequence both in the query string and the data
if ( s.data )
s.data = (s.data + "").replace(jsre, "=" + jsonp + "$1");
s.url = s.url.replace(jsre, "=" + jsonp + "$1");
// We need to make sure
// that a JSONP style response is executed properly
s.dataType = "script";
// Handle JSONP-style loading
window[ jsonp ] = function(tmp){
data = tmp;
success();
complete();
// Garbage collect
window[ jsonp ] = undefined;
try{ delete window[ jsonp ]; } catch(e){}
if ( head )
head.removeChild( script );
};
}
if ( s.dataType == "script" && s.cache == null )
s.cache = false;
if ( s.cache === false && type == "GET" ) {
var ts = now();
// try replacing _= if it is there
var ret = s.url.replace(/(\?|&)_=.*?(&|$)/, "$1_=" + ts + "$2");
// if nothing was replaced, add timestamp to the end
s.url = ret + ((ret == s.url) ? (/\?/.test(s.url) ? "&" : "?") + "_=" + ts : "");
}
// If data is available, append data to url for get requests
if ( s.data && type == "GET" ) {
s.url += (/\?/.test(s.url) ? "&" : "?") + s.data;
// IE likes to send both get and post data, prevent this
s.data = null;
}
// Watch for a new set of requests
if ( s.global && ! jQuery.active++ )
jQuery.event.trigger( "ajaxStart" );
// Matches an absolute URL, and saves the domain
var parts = /^(\w+:)?\/\/([^\/?#]+)/.exec( s.url );
// 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];
var script = document.createElement("script");
script.src = s.url;
if (s.scriptCharset)
script.charset = s.scriptCharset;
// Handle Script loading
if ( !jsonp ) {
var done = false;
// Attach handlers for all browsers
script.onload = script.onreadystatechange = function(){
if ( !done && (!this.readyState ||
this.readyState == "loaded" || this.readyState == "complete") ) {
done = true;
success();
complete();
// Handle memory leak in IE
script.onload = script.onreadystatechange = null;
head.removeChild( script );
}
};
}
head.appendChild(script);
// We handle everything using the script element injection
return undefined;
}
var requestDone = false;
// Create the request object
var xhr = s.xhr();
// Open the socket
// Passing null username, generates a login popup on Opera (#2865)
if( s.username )
xhr.open(type, s.url, s.async, s.username, s.password);
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 )
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 header so the called script knows that it's an XMLHttpRequest
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._default );
} catch(e){}
// Allow custom headers/mimetypes and early abort
if ( s.beforeSend && s.beforeSend(xhr, s) === false ) {
// Handle the global AJAX counter
if ( s.global && ! --jQuery.active )
jQuery.event.trigger( "ajaxStop" );
// close opended socket
xhr.abort();
return false;
}
if ( s.global )
jQuery.event.trigger("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" );
}
// The transfer is complete and the data is available, or the request timed out
} else if ( !requestDone && xhr && (xhr.readyState == 4 || isTimeout == "timeout") ) {
requestDone = true;
// 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";
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) {
status = "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;
// JSONP handles its own success callback
if ( !jsonp )
success();
} else
jQuery.handleError(s, xhr, status);
// Fire the complete handlers
complete();
if ( isTimeout )
xhr.abort();
// Stop memory leaks
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);
// Timeout checker
if ( 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(s.data);
} catch(e) {
jQuery.handleError(s, xhr, null, e);
}
// firefox 1.5 doesn't fire statechange for sync requests
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 );
// Fire the global callback
if ( s.global )
jQuery.event.trigger( "ajaxSuccess", [xhr, s] );
}
function complete(){
// Process result
if ( s.complete )
s.complete(xhr, status);
// The request was completed
if ( s.global )
jQuery.event.trigger( "ajaxComplete", [xhr, s] );
// Handle the global AJAX counter
if ( s.global && ! --jQuery.active )
jQuery.event.trigger( "ajaxStop" );
}
// return XMLHttpRequest to allow aborting the request etc.
return xhr;
},
handleError: function( s, xhr, status, e ) {
// If a local callback was specified, fire it
if ( s.error ) s.error( xhr, status, e );
// Fire the global callback
if ( s.global )
jQuery.event.trigger( "ajaxError", [xhr, s, e] );
},
// Counter for holding the number of active queries
active: 0,
// 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 false;
},
// Determines if an XMLHttpRequest returns NotModified
httpNotModified: function( xhr, url ) {
try {
var xhrRes = xhr.getResponseHeader("Last-Modified");
// Firefox always returns 200. check Last-Modified date
return xhr.status == 304 || xhrRes == jQuery.lastModified[url];
} catch(e){}
return false;
},
httpData: function( xhr, type, s ) {
var ct = xhr.getResponseHeader("content-type"),
xml = type == "xml" || !type && ct && ct.indexOf("xml") >= 0,
data = xml ? xhr.responseXML : xhr.responseText;
if ( xml && data.documentElement.tagName == "parsererror" )
throw "parsererror";
// Allow a pre-filtering function to sanitize the response
// s != null 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" ){
// If the type is "script", eval it in global context
if ( type == "script" )
jQuery.globalEval( data );
// Get the JavaScript object, if JSON is used.
if ( type == "json" )
data = window["eval"]("(" + 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 );
});
// 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] );
// Return the resulting serialization
return s.join("&").replace(/%20/g, "+");
}
});