X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=src%2Fajax%2Fajax.js;h=5c48968fc0a71426df5178796e897b21737ea43f;hb=cb53fc02b68ca267f9eddd8fd4f5d92ef08ae022;hp=be9c32006280d22fd8729090fca3e700f057b8bd;hpb=a42a8e5afa2e4ca7690081bce9899d5e6e0d1cf4;p=jquery.git diff --git a/src/ajax/ajax.js b/src/ajax/ajax.js index be9c320..5c48968 100644 --- a/src/ajax/ajax.js +++ b/src/ajax/ajax.js @@ -1,59 +1,155 @@ -// AJAX Plugin -// Docs Here: -// http://jquery.com/docs/ajax/ +jQuery.fn.extend({ -/** - * Load HTML from a remote file and inject it into the DOM - */ -jQuery.fn.load = function( url, params, callback ) { - // I overwrote the event plugin's .load - // this won't happen again, I hope -John - if ( url && url.constructor == Function ) - return this.bind("load", url); - - // Default to a GET request - var type = "GET"; - - // If the second parameter was provided - if ( params ) { - // If it's a function - if ( params.constructor == Function ) { - // We assume that it's the callback - callback = params; - params = null; - - // Otherwise, build a param string - } else { - params = jQuery.param( params ); - type = "POST"; - } - } + /** + * 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") + * @before
+ * @result
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+ * + * @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. + * @cat AJAX + */ + loadIfModified: function( url, params, callback ) { + this.load( url, params, callback, 1 ); + }, + + /** + * Load HTML from a remote file and inject it into the DOM. + * + * @example $("#feeds").load("feeds.html") + * @before
+ * @result
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+ * + * @example $("#feeds").load("feeds.html", + * {test: true}, + * function() { alert("load is done"); } + * ); + * @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(); + * }); + * + * @test stop(); // check if load can be called with only url + * $('#first').load("data/name.php"); + * $.get("data/name.php", function() { + * ok( $('#first').text() == 'ERROR', 'Check if load works without callback'); + * start(); + * }); + * + * @test stop(); + * foobar = undefined; + * foo = undefined; + * var verifyEvaluation = function() { + * ok( foobar == "bar", 'Check if script src was evaluated after load' ); + * start(); + * }; + * $('#first').load('data/test.html', function() { + * ok( $('#first').html().match(/^html text/), 'Check content after loading html' ); + * ok( foo == "foo", 'Check if script was evaluated after load' ); + * setTimeout(verifyEvaluation, 600); + * }); + * + * @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. + * @cat AJAX + */ + load: function( url, params, callback, ifModified ) { + if ( url.constructor == Function ) + return this.bind("load", url); + + callback = callback || function(){}; - var self = this; + // Default to a GET request + var type = "GET"; - // Request the remote document - jQuery.ajax( type, url, params,function(res){ + // If the second parameter was provided + if ( params ) { + // If it's a function + if ( params.constructor == Function ) { + // 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){ - // Inject the HTML into all the matched elements - self.html(res.responseText).each(function(){ - // If a callback function was provided - if ( callback && callback.constructor == Function ) - // Execute it within the context of the element - callback.apply( self, [res.responseText] ); - }); + 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] ); + } else + callback.apply( self, [res.responseText, status] ); + + }, ifModified); - // Execute all the scripts inside of the newly-injected HTML - $("script", self).each(function(){ - eval( this.text || this.textContent || this.innerHTML || ""); - }); + return this; + }, - }); + /** + * Serializes a set of input elements into a string of data. + * This will serialize all given elements. If you need + * serialization similar to the form submit of a browser, + * you should use the form plugin. This is also true for + * selects with multiple attribute set, only a single option + * is serialized. + * + * @example $("input[@type=text]").serialize(); + * @before + * + * @after name=John&location=Boston + * @desc Serialize a selection of input elements to a string + * + * @test var data = $(':input').not('button').serialize(); + * // ignore button, IE takes text content as value, not relevant for this test + * ok( data == 'action=Test&text2=Test&radio1=on&radio2=on&check=on&=on&hidden=&foo[bar]=&name=name&=foobar&select1=&select2=3&select3=1', 'Check form serialization as query string' ); + * + * @name serialize + * @type String + * @cat AJAX + */ + serialize: function() { + return jQuery.param( this ); + }, - return this; -}; + evalScripts: function() { + return this.find('script').each(function(){ + if ( this.src ) + // for some weird reason, it doesn't work if the callback is ommited + jQuery.getScript( this.src, function() {} ); + else + eval.call( window, this.text || this.textContent || this.innerHTML || "" ); + }).end(); + } + +}); // If IE is used, create a wrapper for the XMLHttpRequest object -if ( jQuery.browser.msie ) +if ( jQuery.browser.msie && typeof XMLHttpRequest == "undefined" ) XMLHttpRequest = function(){ return new ActiveXObject( navigator.userAgent.indexOf("MSIE 5") >= 0 ? @@ -62,65 +158,535 @@ if ( jQuery.browser.msie ) }; // Attach a bunch of functions for handling common AJAX events + +/** + * Attach a function to be executed whenever an AJAX request begins. + * + * @example $("#loading").ajaxStart(function(){ + * $(this).show(); + * }); + * @desc Show a loading message whenever an AJAX request starts. + * + * @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. + * + * @example $("#loading").ajaxStop(function(){ + * $(this).hide(); + * }); + * @desc Hide a loading message after all the AJAX requests have stopped. + * + * @name ajaxStop + * @type jQuery + * @param Function callback The function to execute. + * @cat AJAX + */ + +/** + * Attach a function to be executed whenever an AJAX request completes. + * + * @example $("#msg").ajaxComplete(function(){ + * $(this).append("
  • Request Complete.
    • "); + * }); + * @desc Show a message when an AJAX request completes. + * + * @name ajaxComplete + * @type jQuery + * @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(){ + * $(this).append("
  • Successful Request!
    • "); + * }); + * @desc Show a message when an AJAX request completes successfully. + * + * @name ajaxSuccess + * @type jQuery + * @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.
    • "); + * }); + * @desc Show a message when an AJAX request fails. + * + * @name ajaxError + * @type jQuery + * @param Function callback The function to execute. + * @cat AJAX + */ + +/** + * @test stop(); var counter = { complete: 0, success: 0, error: 0 }; + * var success = function() { counter.success++ }; + * var error = function() { counter.error++ }; + * var complete = function() { counter.complete++ }; + * $('#foo').ajaxStart(complete).ajaxStop(complete).ajaxComplete(complete).ajaxError(error).ajaxSuccess(success); + * // start with successful test + * $.ajax({url: "data/name.php", success: success, error: error, complete: function() { + * ok( counter.error == 0, 'Check succesful request' ); + * ok( counter.success == 2, 'Check succesful request' ); + * ok( counter.complete == 3, 'Check succesful request' ); + * counter.error = 0; counter.success = 0; counter.complete = 0; + * $.ajaxTimeout(500); + * $.ajax({url: "data/name.php?wait=5", success: success, error: error, complete: function() { + * ok( counter.error == 2, 'Check failed request' ); + * ok( counter.success == 0, 'Check failed request' ); + * ok( counter.complete == 3, 'Check failed request' ); + * start(); + * }}); + * }}); + + * @test stop(); var counter = { complete: 0, success: 0, error: 0 }; + * counter.error = 0; counter.success = 0; counter.complete = 0; + * var success = function() { counter.success++ }; + * var error = function() { counter.error++ }; + * $.ajaxTimeout(0); + * $.ajax({url: "data/name.php", global: false, success: success, error: error, complete: function() { + * ok( counter.error == 0, 'Check sucesful request without globals' ); + * ok( counter.success == 1, 'Check sucesful request without globals' ); + * ok( counter.complete == 0, 'Check sucesful request without globals' ); + * counter.error = 0; counter.success = 0; counter.complete = 0; + * $.ajaxTimeout(500); + * $.ajax({url: "data/name.php?wait=5", global: false, success: success, error: error, complete: function() { + * ok( counter.error == 1, 'Check failed request without globals' ); + * ok( counter.success == 0, 'Check failed request without globals' ); + * ok( counter.complete == 0, 'Check failed request without globals' ); + * start(); + * }}); + * }}); + * + * @name ajaxHandlersTesting + * @private + */ + + new function(){ - var e = "ajaxStart,ajaxStop,ajaxComplete,ajaxError,ajaxSuccess".split(','); + var e = "ajaxStart,ajaxStop,ajaxComplete,ajaxError,ajaxSuccess".split(","); for ( var i = 0; i < e.length; i++ ) new function(){ var o = e[i]; jQuery.fn[o] = function(f){ return this.bind(o, f); }; - } + }; }; jQuery.extend({ /** - * Load a remote page using a GET request + * Load a remote page using an HTTP GET request. All of the arguments to + * the method (except URL) are optional. + * + * @example $.get("test.cgi") + * + * @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 = []; + * $('tab', xml).each(function() { + * content.push($(this).text()); + * }); + * ok( content[0] == 'blabla', 'Check first tab'); + * ok( content[1] == 'blublu', 'Check second tab'); + * start(); + * }); + * + * @name $.get + * @type jQuery + * @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. + * @cat AJAX */ - get: function( url, data, callback, type ) { - if ( data.constructor == Function ) { + get: function( url, data, callback, type, ifModified ) { + if ( data && data.constructor == Function ) { + type = callback; callback = data; data = null; } - if ( data ) - url += "?" + jQuery.param(data); + // append ? + data or & + data, in case there are already params + if ( data ) url += ((url.indexOf("?") > -1) ? "&" : "?") + jQuery.param(data); // Build and start the HTTP Request - jQuery.ajax( "GET", url, null, function(r) { - if ( callback ) callback( jQuery.httpData(r,type) ); - }); + jQuery.ajax( "GET", url, null, function(r, status) { + if ( callback ) callback( jQuery.httpData(r,type), status ); + }, 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. + * + * @example $.getIfModified("test.html") + * + * @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 + * @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. + * @cat AJAX + */ + getIfModified: function( url, data, callback, type ) { + 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") + * + * @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(); + * }); + * + * @test + * $.getScript("data/test.js"); + * ok( true, "Check with single argument, can't verify" ); + * + * @name $.getScript + * @type jQuery + * @param String url The URL of the page to load. + * @param Function callback A function to be executed whenever the data is loaded. + * @cat AJAX + */ + getScript: function( url, callback ) { + if(callback) + jQuery.get(url, null, callback, "script"); + else { + jQuery.get(url, null, null, "script"); + } }, /** - * Load a remote page using a POST request. + * Load a remote JSON object using an HTTP GET request. + * All of the arguments to the method (except URL) are optional. + * + * @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 + * @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. + * @cat AJAX + */ + getJSON: function( url, data, callback ) { + if(callback) + jQuery.get(url, data, callback, "json"); + else { + jQuery.get(url, data, "json"); + } + }, + + /** + * Load a remote page using an HTTP POST request. All of the arguments to + * the method (except URL) are optional. + * + * @example $.post("test.cgi") + * + * @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 + * @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. + * @cat AJAX */ post: function( url, data, callback, type ) { // Build and start the HTTP Request - jQuery.ajax( "POST", url, jQuery.param(data), function(r) { - if ( callback ) callback( jQuery.httpData(r,type) ); + jQuery.ajax( "POST", url, jQuery.param(data), function(r, status) { + if ( callback ) callback( jQuery.httpData(r,type), status ); }); }, + // timeout (ms) + timeout: 0, + /** - * A common wrapper for making XMLHttpRequests + * 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). + * + * @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); + * $('#main').unbind("ajaxError"); + * 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 + * }); + * + * @test stop(); $.ajaxTimeout(50); + * $.ajax({ + * type: "GET", + * timeout: 5000, + * url: "data/name.php?wait=1", + * error: function() { + * ok( false, 'Check for local timeout failed' ); + * start(); + * }, + * success: function() { + * ok( true, 'Check for local timeout' ); + * start(); + * } + * }); + * // reset timeout + * $.ajaxTimeout(0); + * + * + * @name $.ajaxTimeout + * @type jQuery + * @param Number time How long before an AJAX request times out. + * @cat AJAX */ - ajax: function( type, url, data, ret ) { + ajaxTimeout: function(timeout) { + jQuery.timeout = timeout; + }, + + // 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. + * + * These are all the key/values that can be passed in to 'prop': + * + * (String) type - The type of request to make (e.g. "POST" or "GET"). + * + * (String) url - The URL of the page to request. + * + * (String) data - A string of data to be sent to the server (POST only). + * + * (String) dataType - The type of data that you're expecting back from + * the server (e.g. "xml", "html", "script", or "json"). + * + * (Boolean) ifModified - Allow the request to be successful only if the + * response has changed since the last request, default is false, ignoring + * the Last-Modified 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 + * + * (Boolean) global - Wheather to trigger global AJAX event handlers for + * this request, default is true. Set to true to prevent that global handlers + * like ajaxStart or ajaxStop are triggered. + * + * (Function) error - A function to be called if the request fails. The + * function gets passed two arguments: The XMLHttpRequest object and a + * string describing the type of error that occurred. + * + * (Function) success - A function to be called if the request succeeds. The + * function gets passed one argument: The data returned from the server, + * formatted according to the 'dataType' parameter. + * + * (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. + * + * @example $.ajax({ + * type: "GET", + * url: "test.js", + * dataType: "script" + * }) + * @desc Load and execute a JavaScript file. + * + * @example $.ajax({ + * type: "POST", + * url: "some.php", + * data: "name=John&location=Boston", + * success: function(msg){ + * alert( "Data Saved: " + msg ); + * } + * }); + * @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(); + * } + * }); + * + * @test stop(); + * $.ajax({ + * type: "POST", + * url: "data/name.php", + * data: "name=peter", + * success: function(msg){ + * ok( msg == 'pan', 'Check for POST' ); + * start(); + * } + * }); + * + * @test stop(); + * foobar = undefined; + * foo = undefined; + * var verifyEvaluation = function() { + * ok( foobar == "bar", 'Check if script src was evaluated for datatype html' ); + * start(); + * }; + * $.ajax({ + * dataType: "html", + * url: "data/test.html", + * success: function(data) { + * ok( data.match(/^html text/), 'Check content for datatype html' ); + * ok( foo == "foo", 'Check if script was evaluated for datatype html' ); + * setTimeout(verifyEvaluation, 600); + * } + * }); + * + * @name $.ajax + * @type jQuery + * @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; + var timeout = typeof type.timeout == "number" ? type.timeout : jQuery.timeout; + var ifModified = type.ifModified || false; data = type.data; url = type.url; type = type.type; } // Watch for a new set of requests - if ( ! jQuery.active++ ) + if ( global && ! jQuery.active++ ) jQuery.event.trigger( "ajaxStart" ); + + var requestDone = false; // Create the request object var xml = new XMLHttpRequest(); @@ -131,52 +697,91 @@ jQuery.extend({ // Set the correct header, if data is being sent if ( data ) xml.setRequestHeader("Content-Type", "application/x-www-form-urlencoded"); - - // Set header so calling script knows that it's an XMLHttpRequest + + // Set the If-Modified-Since header, if ifModified mode. + if ( ifModified ) + xml.setRequestHeader("If-Modified-Since", + jQuery.lastModified[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"); - + // Wait for a response to come back - xml.onreadystatechange = function(){ - // The transfer is complete and the data is available - if ( xml.readyState == 4 ) { - // Make sure that the request was successful - if ( jQuery.httpSuccess( xml ) ) { + 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") ) { + requestDone = true; + + var status = jQuery.httpSuccess( xml ) && istimeout != "timeout" ? + ifModified && jQuery.httpNotModified( xml, 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; + try { + modRes = xml.getResponseHeader("Last-Modified"); + } catch(e) {} // swallow exception thrown by FF if header is not available + + if ( ifModified && modRes ) + jQuery.lastModified[url] = modRes; + // If a local callback was specified, fire it - if ( success ) success( xml ); + if ( success ) + success( jQuery.httpData( xml, dataType ), status ); // Fire the global callback - jQuery.event.trigger( "ajaxSuccess" ); + if( global ) + jQuery.event.trigger( "ajaxSuccess" ); // Otherwise, the request was not successful } else { // If a local callback was specified, fire it - if ( error ) error( xml ); + if ( error ) error( xml, status ); // Fire the global callback - jQuery.event.trigger( "ajaxError" ); + if( global ) + jQuery.event.trigger( "ajaxError" ); } // The request was completed - jQuery.event.trigger( "ajaxComplete" ); + if( global ) + jQuery.event.trigger( "ajaxComplete" ); // Handle the global AJAX counter - if ( ! --jQuery.active ) + if ( global && ! --jQuery.active ) jQuery.event.trigger( "ajaxStop" ); // Process result - if ( ret ) ret(xml); - + if ( ret ) ret(xml, status); + // Stop memory leaks xml.onreadystatechange = function(){}; xml = null; + } }; - + xml.onreadystatechange = onreadystatechange; + + // Timeout checker + if(timeout > 0) + setTimeout(function(){ + // Check to see if the request is still happening + if (xml) { + // Cancel the request + xml.abort(); + + if ( !requestDone ) onreadystatechange( "timeout" ); + + // Clear from memory + xml = null; + } + }, timeout); + // Send the data xml.send(data); }, @@ -187,20 +792,48 @@ jQuery.extend({ // Determines if an XMLHttpRequest was successful or not httpSuccess: function(r) { try { - return r.status ? - ( r.status >= 200 && r.status < 300 ) || r.status == 304 : - location.protocol == "file:"; + return !r.status && location.protocol == "file:" || + ( r.status >= 200 && r.status < 300 ) || r.status == 304 || + jQuery.browser.safari && r.status == undefined; + } catch(e){} + + return false; + }, + + // Determines if an XMLHttpRequest returns NotModified + httpNotModified: function(xml, url) { + try { + var xmlRes = xml.getResponseHeader("Last-Modified"); + + // Firefox always returns 200. check Last-Modified date + 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. + /* 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. + * (String) data - The type of data that you're expecting back, + * (e.g. "xml", "html", "script") + */ httpData: function(r,type) { var ct = r.getResponseHeader("content-type"); - var xml = ( !type || type == "xml" ) && ct && ct.indexOf("xml") >= 0; - return xml ? r.responseXML : r.responseText; + 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 ); + + // Get the JavaScript object, if JSON is used. + if ( type == "json" ) eval( "data = " + data ); + + // evaluate scripts within html + if ( type == "html" ) $("
    ").html(data).evalScripts(); + + return data; }, // Serialize an array of form elements or a set of @@ -210,7 +843,7 @@ jQuery.extend({ // If an array was passed in, assume that it is an array // of form elements - if ( a.constructor == Array ) { + 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 ) );