X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=src%2Fajax%2Fajax.js;h=b2fd2325a74e4f79c0ff59d36231697ab0dce7f8;hb=898ca3198b3297f68eb77ad128450ad8f952e15e;hp=07d69b40dcac60336dfec64df603d46235b557f2;hpb=7dd456176d399a27784f22e58168ba9db95df8f5;p=jquery.git
diff --git a/src/ajax/ajax.js b/src/ajax/ajax.js
index 07d69b4..b2fd232 100644
--- a/src/ajax/ajax.js
+++ b/src/ajax/ajax.js
@@ -4,15 +4,15 @@ jQuery.fn.extend({
* Load HTML from a remote file and inject it into the DOM, only if it's
* been modified by the server.
*
- * @example $("#feeds").loadIfModified("feeds.html")
+ * @example $("#feeds").loadIfModified("feeds.html");
* @before
* @result
45 feeds found.
*
* @name loadIfModified
* @type jQuery
* @param String url The URL of the HTML file to load.
- * @param Hash params A set of key/value pairs that will be sent to the server.
- * @param Function callback A function to be executed whenever the data is loaded.
+ * @param Hash params (optional) A set of key/value pairs that will be sent to the server.
+ * @param Function callback (optional) A function to be executed whenever the data is loaded (parameters: responseText, status and response itself).
* @cat AJAX
*/
loadIfModified: function( url, params, callback ) {
@@ -22,39 +22,33 @@ jQuery.fn.extend({
/**
* Load HTML from a remote file and inject it into the DOM.
*
- * @example $("#feeds").load("feeds.html")
+ * @example $("#feeds").load("feeds.html");
* @before
* @result
45 feeds found.
*
* @example $("#feeds").load("feeds.html",
- * {test: true},
- * function() { alert("load is done"); }
+ * {limit: 25},
+ * function() { alert("The last 25 entries in the feed have been loaded"); }
* );
* @desc Same as above, but with an additional parameter
* and a callback that is executed when the data was loaded.
*
- * @test stop();
- * $('#first').load("data/name.php", function() {
- * ok( $('#first').text() == 'ERROR', 'Check if content was injected into the DOM' );
- * start();
- * });
- *
* @name load
* @type jQuery
* @param String url The URL of the HTML file to load.
- * @param Hash params A set of key/value pairs that will be sent to the server.
- * @param Function callback A function to be executed whenever the data is loaded.
+ * @param Object params (optional) A set of key/value pairs that will be sent as data to the server.
+ * @param Function callback (optional) A function to be executed whenever the data is loaded (parameters: responseText, status and response itself).
* @cat AJAX
*/
load: function( url, params, callback, ifModified ) {
if ( url.constructor == Function )
return this.bind("load", url);
-
+
callback = callback || function(){};
-
+
// Default to a GET request
var type = "GET";
-
+
// If the second parameter was provided
if ( params ) {
// If it's a function
@@ -62,41 +56,44 @@ jQuery.fn.extend({
// We assume that it's the callback
callback = params;
params = null;
-
+
// Otherwise, build a param string
} else {
params = jQuery.param( params );
type = "POST";
}
}
-
+
var self = this;
-
+
// Request the remote document
- jQuery.ajax( type, url, params,function(res, status){
-
- if ( status == "success" || !ifModified && status == "notmodified" ) {
- // Inject the HTML into all the matched elements
- self.html(res.responseText).each( callback, [res.responseText, status] );
-
- // Execute all the scripts inside of the newly-injected HTML
- $("script", self).each(function(){
- if ( this.src )
- $.getScript( this.src );
- else
- eval.call( window, this.text || this.textContent || this.innerHTML || "" );
- });
- } else
- callback.apply( self, [res.responseText, status] );
-
- }, ifModified);
-
+ jQuery.ajax({
+ url: url,
+ type: type,
+ data: params,
+ ifModified: ifModified,
+ complete: function(res, status){
+ if ( status == "success" || !ifModified && status == "notmodified" ) {
+ // Inject the HTML into all the matched elements
+ self.html(res.responseText)
+ // Execute all the scripts inside of the newly-injected HTML
+ .evalScripts()
+ // Execute callback
+ .each( callback, [res.responseText, status, res] );
+ } else
+ callback.apply( self, [res.responseText, status, res] );
+ }
+ });
return this;
},
/**
- * A function for serializing a set of input elements into
- * a string of data.
+ * Serializes a set of input elements into a string of data.
+ * This will serialize all given elements.
+ *
+ * A serialization similar to the form submit of a browser is
+ * provided by the form plugin. It also takes multiple-selects
+ * into account, while this method recognizes only a single option.
*
* @example $("input[@type=text]").serialize();
* @before
@@ -104,44 +101,59 @@ jQuery.fn.extend({
* @after name=John&location=Boston
* @desc Serialize a selection of input elements to a string
*
- * @test var data = $(':input').serialize();
- * ok( data == 'action=Test&text2=Test&radio1=on&radio2=on&check=on&=on&hidden=&foo[bar]=&name=name&button=&=foobar&select1=&select2=3&select3=1', 'Check form serialization as query string' );
- *
* @name serialize
* @type String
* @cat AJAX
*/
serialize: function() {
- return $.param( this );
+ return jQuery.param( this );
+ },
+
+ /**
+ * Evaluate all script tags inside this jQuery. If they have a src attribute,
+ * the script is loaded, otherwise it's content is evaluated.
+ *
+ * @name evalScripts
+ * @type jQuery
+ * @private
+ * @cat AJAX
+ */
+ evalScripts: function() {
+ return this.find('script').each(function(){
+ if ( this.src )
+ jQuery.getScript( this.src );
+ else {
+ jQuery.globalEval( this.text || this.textContent || this.innerHTML || "" );
+ }
+ }).end();
}
-
+
});
// If IE is used, create a wrapper for the XMLHttpRequest object
if ( jQuery.browser.msie && typeof XMLHttpRequest == "undefined" )
XMLHttpRequest = function(){
- return new ActiveXObject(
- navigator.userAgent.indexOf("MSIE 5") >= 0 ?
- "Microsoft.XMLHTTP" : "Msxml2.XMLHTTP"
- );
+ return new ActiveXObject("Microsoft.XMLHTTP");
};
// Attach a bunch of functions for handling common AJAX events
/**
- * Attach a function to be executed whenever an AJAX request begins.
+ * Attach a function to be executed whenever an AJAX request begins
+ * and there is none already active.
*
* @example $("#loading").ajaxStart(function(){
* $(this).show();
* });
- * @desc Show a loading message whenever an AJAX request starts.
+ * @desc Show a loading message whenever an AJAX request starts
+ * (and none is already active).
*
* @name ajaxStart
* @type jQuery
* @param Function callback The function to execute.
* @cat AJAX
*/
-
+
/**
* Attach a function to be executed whenever all AJAX requests have ended.
*
@@ -155,11 +167,14 @@ if ( jQuery.browser.msie && typeof XMLHttpRequest == "undefined" )
* @param Function callback The function to execute.
* @cat AJAX
*/
-
+
/**
* Attach a function to be executed whenever an AJAX request completes.
*
- * @example $("#msg").ajaxComplete(function(){
+ * The XMLHttpRequest and settings used for that request are passed
+ * as arguments to the callback.
+ *
+ * @example $("#msg").ajaxComplete(function(request, settings){
* $(this).append("
Request Complete.
");
* });
* @desc Show a message when an AJAX request completes.
@@ -169,12 +184,15 @@ if ( jQuery.browser.msie && typeof XMLHttpRequest == "undefined" )
* @param Function callback The function to execute.
* @cat AJAX
*/
-
+
/**
* Attach a function to be executed whenever an AJAX request completes
* successfully.
*
- * @example $("#msg").ajaxSuccess(function(){
+ * The XMLHttpRequest and settings used for that request are passed
+ * as arguments to the callback.
+ *
+ * @example $("#msg").ajaxSuccess(function(request, settings){
* $(this).append("
Successful Request!
");
* });
* @desc Show a message when an AJAX request completes successfully.
@@ -184,12 +202,15 @@ if ( jQuery.browser.msie && typeof XMLHttpRequest == "undefined" )
* @param Function callback The function to execute.
* @cat AJAX
*/
-
+
/**
* Attach a function to be executed whenever an AJAX request fails.
*
- * @example $("#msg").ajaxError(function(){
- * $(this).append("
Error requesting page.
");
+ * The XMLHttpRequest and settings used for that request are passed
+ * as arguments to the callback.
+ *
+ * @example $("#msg").ajaxError(function(request, settings){
+ * $(this).append("
");
+ * });
+ * @desc Show a message before an AJAX request is send.
+ *
+ * @name ajaxSend
+ * @type jQuery
+ * @param Function callback The function to execute.
+ * @cat AJAX
*/
-
new function(){
- var e = "ajaxStart,ajaxStop,ajaxComplete,ajaxError,ajaxSuccess".split(",");
-
+ var e = "ajaxStart,ajaxStop,ajaxComplete,ajaxError,ajaxSuccess,ajaxSend".split(",");
+
for ( var i = 0; i < e.length; i++ ) new function(){
var o = e[i];
jQuery.fn[o] = function(f){
@@ -253,247 +251,176 @@ new function(){
jQuery.extend({
/**
- * Load a remote page using an HTTP GET request. All of the arguments to
- * the method (except URL) are optional.
+ * Load a remote page using an HTTP GET request.
*
- * @example $.get("test.cgi")
+ * @example $.get("test.cgi");
*
- * @example $.get("test.cgi", { name: "John", time: "2pm" } )
+ * @example $.get("test.cgi", { name: "John", time: "2pm" } );
*
* @example $.get("test.cgi", function(data){
* alert("Data Loaded: " + data);
- * })
+ * });
*
* @example $.get("test.cgi",
* { name: "John", time: "2pm" },
* function(data){
* alert("Data Loaded: " + data);
* }
- * )
- *
- * @test stop();
- * $.get("data/dashboard.xml", function(xml) {
- * var content = [];
- * $('tab', xml).each(function(k) {
- * // workaround for IE needed here, $(this).text() throws an error
- * // content[k] = $.trim(this.firstChild.data) || $(this).text();
- * content[k] = $(this).text();
- * });
- * ok( content[0] && content[0].match(/blabla/), 'Check first tab' );
- * ok( content[1] && content[1].match(/blublu/), 'Check second tab' );
- * start();
- * });
+ * );
*
* @name $.get
- * @type jQuery
+ * @type XMLHttpRequest
* @param String url The URL of the page to load.
- * @param Hash params A set of key/value pairs that will be sent to the server.
- * @param Function callback A function to be executed whenever the data is loaded.
+ * @param Hash params (optional) A set of key/value pairs that will be sent to the server.
+ * @param Function callback (optional) A function to be executed whenever the data is loaded.
* @cat AJAX
*/
get: function( url, data, callback, type, ifModified ) {
- if ( data.constructor == Function ) {
- type = callback;
+ // shift arguments if data argument was ommited
+ if ( data && data.constructor == Function ) {
callback = data;
data = null;
}
-
- if ( data ) url += "?" + jQuery.param(data);
-
- // Build and start the HTTP Request
- jQuery.ajax( "GET", url, null, function(r, status) {
- if ( callback ) callback( jQuery.httpData(r,type), status );
- }, ifModified);
+ return jQuery.ajax({
+ url: url,
+ data: data,
+ success: callback,
+ dataType: type,
+ ifModified: ifModified
+ });
},
-
+
/**
* Load a remote page using an HTTP GET request, only if it hasn't
- * been modified since it was last retrieved. All of the arguments to
- * the method (except URL) are optional.
+ * been modified since it was last retrieved.
*
- * @example $.getIfModified("test.html")
+ * @example $.getIfModified("test.html");
*
- * @example $.getIfModified("test.html", { name: "John", time: "2pm" } )
+ * @example $.getIfModified("test.html", { name: "John", time: "2pm" } );
*
* @example $.getIfModified("test.cgi", function(data){
* alert("Data Loaded: " + data);
- * })
+ * });
*
* @example $.getifModified("test.cgi",
* { name: "John", time: "2pm" },
* function(data){
* alert("Data Loaded: " + data);
* }
- * )
- *
- * @test stop();
- * $.getIfModified("data/name.php", function(msg) {
- * ok( msg == 'ERROR', 'Check ifModified' );
- * start();
- * });
+ * );
*
* @name $.getIfModified
- * @type jQuery
+ * @type XMLHttpRequest
* @param String url The URL of the page to load.
- * @param Hash params A set of key/value pairs that will be sent to the server.
- * @param Function callback A function to be executed whenever the data is loaded.
+ * @param Hash params (optional) A set of key/value pairs that will be sent to the server.
+ * @param Function callback (optional) A function to be executed whenever the data is loaded.
* @cat AJAX
*/
getIfModified: function( url, data, callback, type ) {
- jQuery.get(url, data, callback, type, 1);
+ return jQuery.get(url, data, callback, type, 1);
},
/**
* Loads, and executes, a remote JavaScript file using an HTTP GET request.
- * All of the arguments to the method (except URL) are optional.
*
- * @example $.getScript("test.js")
+ * Warning: Safari <= 2.0.x is unable to evalulate scripts in a global
+ * context synchronously. If you load functions via getScript, make sure
+ * to call them after a delay.
+ *
+ * @example $.getScript("test.js");
*
* @example $.getScript("test.js", function(){
* alert("Script loaded and executed.");
- * })
- *
- * @test stop();
- * $.getScript("data/test.js", function() {
- * ok( foobar == "bar", 'Check if script was evaluated' );
- * start();
* });
*
* @name $.getScript
- * @type jQuery
+ * @type XMLHttpRequest
* @param String url The URL of the page to load.
- * @param Function callback A function to be executed whenever the data is loaded.
+ * @param Function callback (optional) A function to be executed whenever the data is loaded.
* @cat AJAX
*/
getScript: function( url, callback ) {
- jQuery.get(url, callback, "script");
+ return jQuery.get(url, null, callback, "script");
},
-
+
/**
- * Load a remote JSON object using an HTTP GET request.
- * All of the arguments to the method (except URL) are optional.
+ * Load JSON data using an HTTP GET request.
*
* @example $.getJSON("test.js", function(json){
* alert("JSON Data: " + json.users[3].name);
- * })
+ * });
*
* @example $.getJSON("test.js",
* { name: "John", time: "2pm" },
* function(json){
* alert("JSON Data: " + json.users[3].name);
* }
- * )
- *
- * @test stop();
- * $.getJSON("data/json.php", {json: "array"}, function(json) {
- * ok( json[0].name == 'John', 'Check JSON: first, name' );
- * ok( json[0].age == 21, 'Check JSON: first, age' );
- * ok( json[1].name == 'Peter', 'Check JSON: second, name' );
- * ok( json[1].age == 25, 'Check JSON: second, age' );
- * start();
- * });
- * @test stop();
- * $.getJSON("data/json.php", function(json) {
- * ok( json.data.lang == 'en', 'Check JSON: lang' );
- * ok( json.data.length == 25, 'Check JSON: length' );
- * start();
- * });
+ * );
*
* @name $.getJSON
- * @type jQuery
+ * @type XMLHttpRequest
* @param String url The URL of the page to load.
- * @param Hash params A set of key/value pairs that will be sent to the server.
+ * @param Hash params (optional) A set of key/value pairs that will be sent to the server.
* @param Function callback A function to be executed whenever the data is loaded.
* @cat AJAX
*/
getJSON: function( url, data, callback ) {
- if(callback)
- jQuery.get(url, data, callback, "json");
- else {
- jQuery.get(url, data, "json");
- }
+ return jQuery.get(url, data, callback, "json");
},
-
+
/**
- * Load a remote page using an HTTP POST request. All of the arguments to
- * the method (except URL) are optional.
+ * Load a remote page using an HTTP POST request.
*
- * @example $.post("test.cgi")
+ * @example $.post("test.cgi");
*
- * @example $.post("test.cgi", { name: "John", time: "2pm" } )
+ * @example $.post("test.cgi", { name: "John", time: "2pm" } );
*
* @example $.post("test.cgi", function(data){
* alert("Data Loaded: " + data);
- * })
+ * });
*
* @example $.post("test.cgi",
* { name: "John", time: "2pm" },
* function(data){
* alert("Data Loaded: " + data);
* }
- * )
- *
- * @test stop();
- * $.post("data/name.php", {xml: "5-2"}, function(xml){
- * $('math', xml).each(function() {
- * ok( $('calculation', this).text() == '5-2', 'Check for XML' );
- * ok( $('result', this).text() == '3', 'Check for XML' );
- * });
- * start();
- * });
+ * );
*
* @name $.post
- * @type jQuery
+ * @type XMLHttpRequest
* @param String url The URL of the page to load.
- * @param Hash params A set of key/value pairs that will be sent to the server.
- * @param Function callback A function to be executed whenever the data is loaded.
+ * @param Hash params (optional) A set of key/value pairs that will be sent to the server.
+ * @param Function callback (optional) A function to be executed whenever the data is loaded.
* @cat AJAX
*/
post: function( url, data, callback, type ) {
- // Build and start the HTTP Request
- jQuery.ajax( "POST", url, jQuery.param(data), function(r, status) {
- if ( callback ) callback( jQuery.httpData(r,type), status );
+ return jQuery.ajax({
+ type: "POST",
+ url: url,
+ data: data,
+ success: callback,
+ dataType: type
});
},
-
+
// timeout (ms)
timeout: 0,
/**
* Set the timeout of all AJAX requests to a specific amount of time.
* This will make all future AJAX requests timeout after a specified amount
- * of time (the default is no timeout).
+ * of time.
+ *
+ * Set to null or 0 to disable timeouts (default).
+ *
+ * You can manually abort requests with the XMLHttpRequest's (returned by
+ * all ajax functions) abort() method.
*
* @example $.ajaxTimeout( 5000 );
* @desc Make all AJAX requests timeout after 5 seconds.
*
- * @test stop();
- * var passed = 0;
- * var timeout;
- * $.ajaxTimeout(1000);
- * var pass = function() {
- * passed++;
- * if(passed == 2) {
- * ok( true, 'Check local and global callbacks after timeout' );
- * clearTimeout(timeout);
- * start();
- * }
- * };
- * var fail = function() {
- * ok( false, 'Check for timeout failed' );
- * start();
- * };
- * timeout = setTimeout(fail, 1500);
- * $('#main').ajaxError(pass);
- * $.ajax({
- * type: "GET",
- * url: "data/name.php?wait=5",
- * error: pass,
- * success: fail
- * });
- *
* @name $.ajaxTimeout
- * @type jQuery
+ * @type undefined
* @param Number time How long before an AJAX request times out.
* @cat AJAX
*/
@@ -503,25 +430,53 @@ jQuery.extend({
// Last-Modified header cache for next request
lastModified: {},
-
+
/**
- * Load a remote page using an HTTP request. This function is the primary
- * means of making AJAX requests using jQuery. $.ajax() takes one property,
- * an object of key/value pairs, that're are used to initalize the request.
+ * Load a remote page using an HTTP request.
*
- * These are all the key/values that can be passed in to 'prop':
+ * This is jQuery's low-level AJAX implementation. See $.get, $.post etc. for
+ * higher-level abstractions.
*
- * (String) type - The type of request to make (e.g. "POST" or "GET").
+ * $.ajax() returns the XMLHttpRequest that it creates. In most cases you won't
+ * need that object to manipulate directly, but it is available if you need to
+ * abort the request manually.
*
- * (String) url - The URL of the page to request.
- *
- * (String) data - A string of data to be sent to the server (POST only).
+ * Note: Make sure the server sends the right mimetype (eg. xml as
+ * "text/xml"). Sending the wrong mimetype will get you into serious
+ * trouble that jQuery can't solve.
+ *
+ * Supported datatypes are (see dataType option):
+ *
+ * "xml": Returns a XML document that can be processed via jQuery.
+ *
+ * "html": Returns HTML as plain text, included script tags are evaluated.
+ *
+ * "script": Evaluates the response as Javascript and returns it as plain text.
+ *
+ * "json": Evaluates the response as JSON and returns a Javascript Object
+ *
+ * $.ajax() takes one argument, an object of key/value pairs, that are
+ * used to initalize and handle the request. These are all the key/values that can
+ * be used:
+ *
+ * (String) url - The URL to request.
+ *
+ * (String) type - The type of request to make ("POST" or "GET"), default is "GET".
*
* (String) dataType - The type of data that you're expecting back from
- * the server (e.g. "xml", "html", "script", or "json").
+ * the server. No default: If the server sends xml, the responseXML, otherwise
+ * the responseText is passed to the success callback.
+ *
+ * (Boolean) ifModified - Allow the request to be successful only if the
+ * response has changed since the last request. This is done by checking the
+ * Last-Modified header. Default value is false, ignoring the header.
+ *
+ * (Number) timeout - Local timeout to override global timeout, eg. to give a
+ * single request a longer timeout while all others timeout after 1 seconds.
+ * See $.ajaxTimeout() for global timeouts.
*
* (Boolean) global - Wheather to trigger global AJAX event handlers for
- * this request, default is true. Set to true to prevent that global handlers
+ * this request, default is true. Set to false to prevent that global handlers
* like ajaxStart or ajaxStop are triggered.
*
* (Function) error - A function to be called if the request fails. The
@@ -534,7 +489,25 @@ jQuery.extend({
*
* (Function) complete - A function to be called when the request finishes. The
* function gets passed two arguments: The XMLHttpRequest object and a
- * string describing the type the success of the request.
+ * string describing the type of success of the request.
+ *
+ * (Object|String) data - Data to be sent to the server. Converted to a query
+ * string, if not already a string. Is appended to the url for GET-requests.
+ * See processData option to prevent this automatic processing.
+ *
+ * (String) contentType - When sending data to the server, use this content-type.
+ * Default is "application/x-www-form-urlencoded", which is fine for most cases.
+ *
+ * (Boolean) processData - By default, data passed in to the data option as an object
+ * other as string will be processed and transformed into a query string, fitting to
+ * the default content-type "application/x-www-form-urlencoded". If you want to send
+ * DOMDocuments, set this option to false.
+ *
+ * (Boolean) async - By default, all requests are send asynchronous (set to true).
+ * If you need synchronous requests, set this option to false.
+ *
+ * (Function) beforeSend - A pre-callback to set custom headers etc., the
+ * XMLHttpRequest is passed as the only argument.
*
* @example $.ajax({
* type: "GET",
@@ -553,128 +526,154 @@ jQuery.extend({
* });
* @desc Save some data to the server and notify the user once its complete.
*
- * @test stop();
- * $.ajax({
- * type: "GET",
- * url: "data/name.php?name=foo",
- * success: function(msg){
- * ok( msg == 'bar', 'Check for GET' );
- * start();
- * }
- * });
+ * @example var html = $.ajax({
+ * url: "some.php",
+ * async: false
+ * }).responseText;
+ * @desc Loads data synchronously. Blocks the browser while the requests is active.
+ * It is better to block user interaction with others means when synchronization is
+ * necessary, instead to block the complete browser.
*
- * @test stop();
+ * @example var xmlDocument = [create xml document];
* $.ajax({
- * type: "POST",
- * url: "data/name.php",
- * data: "name=peter",
- * success: function(msg){
- * ok( msg == 'pan', 'Check for POST' );
- * start();
- * }
+ * url: "page.php",
+ * processData: false,
+ * data: xmlDocument,
+ * success: handleResponse
* });
- *
+ * @desc Sends an xml document as data to the server. By setting the processData
+ * option to false, the automatic conversion of data to strings is prevented.
+ *
* @name $.ajax
- * @type jQuery
+ * @type XMLHttpRequest
* @param Hash prop A set of properties to initialize the request with.
* @cat AJAX
*/
- ajax: function( type, url, data, ret, ifModified ) {
- // If only a single argument was passed in,
- // assume that it is a object of key/value pairs
- if ( !url ) {
- ret = type.complete;
- var success = type.success;
- var error = type.error;
- var dataType = type.dataType;
- var global = typeof type.global == "boolean" ? type.global : true;
- data = type.data;
- url = type.url;
- type = type.type;
+ ajax: function( s ) {
+ // TODO introduce global settings, allowing the client to modify them for all requests, not only timeout
+ s = jQuery.extend({
+ global: true,
+ ifModified: false,
+ type: "GET",
+ timeout: jQuery.timeout,
+ complete: null,
+ success: null,
+ error: null,
+ dataType: null,
+ url: null,
+ data: null,
+ contentType: "application/x-www-form-urlencoded",
+ processData: true,
+ async: true,
+ beforeSend: null
+ }, s);
+
+ // if data available
+ if ( s.data ) {
+ // convert data if not already a string
+ if (s.processData && typeof s.data != 'string')
+ s.data = jQuery.param(s.data);
+ // append data to url for get requests
+ if( s.type.toLowerCase() == "get" )
+ // "?" + data or "&" + data (in case there are already params)
+ s.url += ((s.url.indexOf("?") > -1) ? "&" : "?") + s.data;
}
-
+
// Watch for a new set of requests
- if ( global && ! jQuery.active++ )
+ if ( s.global && ! jQuery.active++ )
jQuery.event.trigger( "ajaxStart" );
var requestDone = false;
-
+
// Create the request object
var xml = new XMLHttpRequest();
-
+
// Open the socket
- xml.open(type || "GET", url, true);
-
+ xml.open(s.type, s.url, s.async);
+
// Set the correct header, if data is being sent
- if ( data )
- xml.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
-
+ if ( s.data )
+ xml.setRequestHeader("Content-Type", s.contentType);
+
// Set the If-Modified-Since header, if ifModified mode.
- if ( ifModified )
+ if ( s.ifModified )
xml.setRequestHeader("If-Modified-Since",
- jQuery.lastModified[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
xml.setRequestHeader("X-Requested-With", "XMLHttpRequest");
-
+
// Make sure the browser sends the right content length
if ( xml.overrideMimeType )
xml.setRequestHeader("Connection", "close");
-
+
+ // Allow custom headers/mimetypes
+ if( s.beforeSend )
+ s.beforeSend(xml);
+ if (s.global)
+ jQuery.event.trigger("ajaxSend", [xml, s]);
+
// 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
- if ( xml && (xml.readyState == 4 || istimeout == "timeout") ) {
+ if ( xml && (xml.readyState == 4 || isTimeout == "timeout") ) {
requestDone = true;
- var status = jQuery.httpSuccess( xml ) && istimeout != "timeout" ?
- ifModified && jQuery.httpNotModified( xml, url ) ? "notmodified" : "success" : "error";
-
+ var status = jQuery.httpSuccess( xml ) && isTimeout != "timeout" ?
+ s.ifModified && jQuery.httpNotModified( xml, s.url ) ? "notmodified" : "success" : "error";
+
// Make sure that the request was successful or notmodified
if ( status != "error" ) {
// Cache Last-Modified header, if ifModified mode.
- var modRes = xml.getResponseHeader("Last-Modified");
- if ( ifModified && modRes ) jQuery.lastModified[url] = modRes;
-
- // If a local callback was specified, fire it
- if ( success )
- success( jQuery.httpData( xml, dataType ), status );
-
+ var modRes;
+ try {
+ modRes = xml.getResponseHeader("Last-Modified");
+ } catch(e) {} // swallow exception thrown by FF if header is not available
+
+ if ( s.ifModified && modRes )
+ jQuery.lastModified[s.url] = modRes;
+
+ // process the data (runs the xml through httpData regardless of callback)
+ var data = jQuery.httpData( xml, s.dataType );
+
+ // 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( global )
- jQuery.event.trigger( "ajaxSuccess" );
-
+ if( s.global )
+ jQuery.event.trigger( "ajaxSuccess", [xml, s] );
+
// Otherwise, the request was not successful
} else {
// If a local callback was specified, fire it
- if ( error ) error( xml, status );
-
+ if ( s.error ) s.error( xml, status );
+
// Fire the global callback
- if( global )
- jQuery.event.trigger( "ajaxError" );
+ if( s.global )
+ jQuery.event.trigger( "ajaxError", [xml, s] );
}
-
+
// The request was completed
- if( global )
- jQuery.event.trigger( "ajaxComplete" );
-
+ if( s.global )
+ jQuery.event.trigger( "ajaxComplete", [xml, s] );
+
// Handle the global AJAX counter
- if ( global && ! --jQuery.active )
+ if ( s.global && ! --jQuery.active )
jQuery.event.trigger( "ajaxStop" );
-
+
// Process result
- if ( ret ) ret(xml, status);
-
+ if ( s.complete ) s.complete(xml, status);
+
// Stop memory leaks
xml.onreadystatechange = function(){};
xml = null;
-
}
};
xml.onreadystatechange = onreadystatechange;
-
+
// Timeout checker
- if(jQuery.timeout > 0)
+ if(s.timeout > 0)
setTimeout(function(){
// Check to see if the request is still happening
if (xml) {
@@ -686,15 +685,21 @@ jQuery.extend({
// Clear from memory
xml = null;
}
- }, jQuery.timeout);
-
+ }, s.timeout);
+
+ // save non-leaking reference
+ var xml2 = xml;
+
// Send the data
- xml.send(data);
+ xml2.send(s.data);
+
+ // return XMLHttpRequest to allow aborting the request etc.
+ return xml2;
},
-
+
// Counter for holding the number of active queries
active: 0,
-
+
// Determines if an XMLHttpRequest was successful or not
httpSuccess: function(r) {
try {
@@ -702,7 +707,6 @@ jQuery.extend({
( r.status >= 200 && r.status < 300 ) || r.status == 304 ||
jQuery.browser.safari && r.status == undefined;
} catch(e){}
-
return false;
},
@@ -715,10 +719,9 @@ jQuery.extend({
return xml.status == 304 || xmlRes == jQuery.lastModified[url] ||
jQuery.browser.safari && xml.status == undefined;
} catch(e){}
-
return false;
},
-
+
/* Get the data out of an XMLHttpRequest.
* Return parsed XML if content-type header is "xml" and type is "xml" or omitted,
* otherwise return plain text.
@@ -730,36 +733,61 @@ jQuery.extend({
var data = !type && ct && ct.indexOf("xml") >= 0;
data = type == "xml" || data ? r.responseXML : r.responseText;
- // If the type is "script", eval it
- if ( type == "script" ) eval.call( window, data );
+ // 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" ) eval( "data = " + data );
+ // evaluate scripts within html
+ if ( type == "html" ) jQuery("
").html(data).evalScripts();
+
return data;
},
-
+
// Serialize an array of form elements or a set of
// key/values into a query string
param: function(a) {
var s = [];
-
+
// If an array was passed in, assume that it is an array
// of form elements
if ( a.constructor == Array || a.jquery ) {
// Serialize the form elements
for ( var i = 0; i < a.length; i++ )
s.push( a[i].name + "=" + encodeURIComponent( a[i].value ) );
-
+
// Otherwise, assume that it's an object of key/value pairs
} else {
// Serialize the key/values
- for ( var j in a )
- s.push( j + "=" + encodeURIComponent( a[j] ) );
+ for ( var j in a ) {
+ // If the value is an array then the key names need to be repeated
+ if( a[j].constructor == Array ) {
+ for (var k = 0; k < a[j].length; k++) {
+ s.push( j + "=" + encodeURIComponent( a[j][k] ) );
+ }
+ } else {
+ s.push( j + "=" + encodeURIComponent( a[j] ) );
+ }
+ }
}
-
+
// Return the resulting serialization
return s.join("&");
+ },
+
+ // evalulates a script in global context
+ // not reliable for safari
+ globalEval: function(data) {
+ if (window.execScript)
+ window.execScript( data );
+ else if(jQuery.browser.safari)
+ // safari doesn't provide a synchronous global eval
+ window.setTimeout( data, 0 );
+ else
+ eval.call( window, data );
}
});