X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=src%2Fajax.js;h=08fbe6f01a017fde2f2f0c728c1d8ba1c7d4346a;hb=3e0cc815043c2425819743e907a0ce263a7ce164;hp=7cf280ab33ab60f94f0bbbfc358ffde1cac25857;hpb=8effe3a7dee91c833cc1774646da9d743600c64c;p=jquery.git diff --git a/src/ajax.js b/src/ajax.js index 7cf280a..08fbe6f 100644 --- a/src/ajax.js +++ b/src/ajax.js @@ -1,11 +1,10 @@ -var jsc = jQuery.now(), - rscript = //gi, - rselectTextarea = /select|textarea/i, - rinput = /color|date|datetime|email|hidden|month|number|password|range|search|tel|text|time|url|week/i, - jsre = /\=\?(&|$)/, +(function( jQuery ) { + +var rscript = /)<[^<]*)*<\/script>/gi, + rselectTextarea = /^(?:select|textarea)/i, + rinput = /^(?:color|date|datetime|email|hidden|month|number|password|range|search|tel|text|time|url|week)$/i, + rbracket = /\[\]$/, rquery = /\?/, - rts = /(\?|&)_=.*?(&|$)/, - rurl = /^(\w+:)?\/\/([^\/?#]+)/, r20 = /%20/g, // Keep a copy of the old load method @@ -59,7 +58,7 @@ jQuery.fn.extend({ // See if a selector was specified self.html( selector ? // Create a dummy div to hold the results - jQuery("
") + jQuery("
") // inject the contents of the document in, removing the scripts // to avoid any 'Permission Denied' errors in IE .append(res.responseText.replace(rscript, "")) @@ -85,37 +84,37 @@ jQuery.fn.extend({ }, 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 || 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 : 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); }; }); -jQuery.extend({ - get: function( url, data, callback, type ) { +jQuery.each( [ "get", "post" ], function( i, method ) { + jQuery[ method ] = function( url, data, callback, type ) { // shift arguments if data argument was omited if ( jQuery.isFunction( data ) ) { type = type || callback; @@ -124,13 +123,16 @@ jQuery.extend({ } return jQuery.ajax({ - type: "GET", + type: method, url: url, data: data, success: callback, dataType: type }); - }, + }; +}); + +jQuery.extend({ getScript: function( url, callback ) { return jQuery.get(url, null, callback, "script"); @@ -140,23 +142,6 @@ jQuery.extend({ return jQuery.get(url, data, callback, "json"); }, - post: function( url, data, callback, type ) { - // shift arguments if data argument was omited - if ( jQuery.isFunction( data ) ) { - type = type || callback; - callback = data; - data = {}; - } - - return jQuery.ajax({ - type: "POST", - url: url, - data: data, - success: callback, - dataType: type - }); - }, - ajaxSetup: function( settings ) { jQuery.extend( jQuery.ajaxSettings, settings ); }, @@ -171,348 +156,144 @@ jQuery.extend({ /* timeout: 0, data: null, + dataType: null, + dataTypes: null, username: null, password: null, + cache: null, traditional: false, */ - // 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 - // This function can be overriden by calling jQuery.ajaxSetup - xhr: window.XMLHttpRequest && (window.location.protocol !== "file:" || !window.ActiveXObject) ? - function() { - return new window.XMLHttpRequest(); - } : - function() { - try { - return new window.ActiveXObject("Microsoft.XMLHTTP"); - } catch(e) {} - }, + xhr: function() { + return new window.XMLHttpRequest(); + }, + xhrResponseFields: { + xml: "XML", + text: "Text", + json: "JSON" + }, + accepts: { xml: "application/xml, text/xml", html: "text/html", - script: "text/javascript, application/javascript", - json: "application/json, text/javascript", text: "text/plain", - _default: "*/*" - } - }, - - ajax: function( origSettings ) { - var s = jQuery.extend(true, {}, jQuery.ajaxSettings, origSettings), - jsonp, status, data, type = s.type.toUpperCase(); - - s.context = origSettings && 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, s.traditional ); - } - - // Handle JSONP Parameter Callbacks - 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 && 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 ) { - 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 ] = window[ jsonp ] || function( tmp ) { - data = tmp; - jQuery.ajax.handleSuccess( s, xhr, status, data ); - jQuery.ajax.handleComplete( s, xhr, status, data ); - // Garbage collect - window[ jsonp ] = undefined; - - try { - delete window[ jsonp ]; - } catch( jsonpError ) {} - - if ( head ) { - head.removeChild( script ); + json: "application/json, text/javascript", + "*": "*/*" + }, + + autoDataType: { + xml: /xml/, + html: /html/, + json: /json/ + }, + + // Prefilters + // 1) They are useful to introduce custom dataTypes (see transport/jsonp for an example) + // 2) These are called: + // * BEFORE asking for a transport + // * AFTER param serialization (s.data is a string if s.processData is true) + // 3) They MUST be order agnostic + prefilters: [], + + // Transports bindings + // 1) key is the dataType + // 2) the catchall symbol "*" can be used + // 3) selection will start with transport dataType and THEN go to "*" if needed + transports: { + }, + + // Checkers + // 1) key is dataType + // 2) they are called to control successful response + // 3) error throws is used as error data + dataCheckers: { + + // Check if data is a string + "text": function(data) { + if ( typeof data != "string" ) { + jQuery.error("typeerror"); } - }; - } - - if ( s.dataType === "script" && s.cache === null ) { - s.cache = false; - } - - if ( s.cache === false && type === "GET" ) { - var ts = jQuery.now(); - - // try replacing _= if it is there - var ret = s.url.replace(rts, "$1_=" + ts + "$2"); - - // if nothing was replaced, add timestamp to the end - 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 += (rquery.test(s.url) ? "&" : "?") + s.data; - } - - // Watch for a new set of requests - if ( s.global && jQuery.ajax.active++ === 0 ) { - jQuery.event.trigger( "ajaxStart" ); - } - - // Matches an absolute URL, and saves the domain - var parts = rurl.exec( s.url ), - remote = parts && (parts[1] && parts[1] !== location.protocol || parts[2] !== 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" && remote ) { - var head = document.getElementsByTagName("head")[0] || document.documentElement; - 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; - jQuery.ajax.handleSuccess( s, xhr, status, data ); - jQuery.ajax.handleComplete( s, xhr, status, data ); - - // Handle memory leak in IE - script.onload = script.onreadystatechange = null; - if ( head && script.parentNode ) { - head.removeChild( script ); - } - } - }; - } - - // Use insertBefore instead of appendChild to circumvent an IE6 bug. - // This arises when a base node is used (#2709 and #4378). - head.insertBefore( script, head.firstChild ); - - // We handle everything using the script element injection - return undefined; - } - - var requestDone = false; - - // 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 ) { - 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 || origSettings && origSettings.contentType ) { - xhr.setRequestHeader("Content-Type", s.contentType); - } + }, - // 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]); + // Check if xml has been properly parsed + "xml": function(data) { + var documentElement = data ? data.documentElement : data; + if ( ! documentElement || ! documentElement.nodeName ) { + jQuery.error("typeerror"); } - - if ( jQuery.ajax.etag[s.url] ) { - xhr.setRequestHeader("If-None-Match", jQuery.ajax.etag[s.url]); + if ( documentElement.nodeName == "parsererror" ) { + jQuery.error("parsererror"); } } + }, - // Set header so the called script knows that it's an 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._default ); - } catch( headerError ) {} - - // Allow custom headers/mimetypes and early abort - if ( s.beforeSend && s.beforeSend.call(s.context, xhr, s) === false ) { - // Handle the global AJAX counter - if ( s.global && jQuery.ajax.active-- === 1 ) { - jQuery.event.trigger( "ajaxStop" ); - } + // List of data converters + // 1) key format is "source_type => destination_type" (spaces required) + // 2) the catchall symbol "*" can be used for source_type + dataConverters: { - // close opended socket - xhr.abort(); - return false; - } - - if ( s.global ) { - jQuery.ajax.triggerGlobal( s, "ajaxSend", [xhr, s] ); - } - - // Wait for a response to come back - 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.ajax.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") ) { - requestDone = true; - xhr.onreadystatechange = jQuery.noop; - - status = isTimeout === "timeout" ? - "timeout" : - !jQuery.ajax.httpSuccess( xhr ) ? - "error" : - s.ifModified && jQuery.ajax.httpNotModified( xhr, s.url ) ? - "notmodified" : - "success"; - - var errMsg; - - 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.ajax.httpData( xhr, s.dataType, s ); - } catch( parserError ) { - status = "parsererror"; - errMsg = parserError; - } - } - - // Make sure that the request was successful or notmodified - if ( status === "success" || status === "notmodified" ) { - // JSONP handles its own success callback - if ( !jsonp ) { - jQuery.ajax.handleSuccess( s, xhr, status, data ); - } - } else { - jQuery.ajax.handleError( s, xhr, status, errMsg ); - } - - // Fire the complete handlers - jQuery.ajax.handleComplete( s, xhr, status, data ); + // Convert anything to text + "* => text": function(data) { + return "" + data; + }, - if ( isTimeout === "timeout" ) { - xhr.abort(); - } + // Text to html (no transformation) + "text => html": function(data) { + return data; + }, - // Stop memory leaks - if ( s.async ) { - xhr = null; + // Evaluate text as a json expression + "text => json": jQuery.parseJSON, + + // Parse text as xml + "text => xml": function(data) { + var xml, parser; + if ( window.DOMParser ) { // Standard + parser = new DOMParser(); + xml = parser.parseFromString(data,"text/xml"); + } else { // IE + xml = new ActiveXObject("Microsoft.XMLDOM"); + xml.async="false"; + xml.loadXML(data); } + return xml; } - }; - - // Override the abort handler, if we can (IE 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.call( xhr ); - } - - 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" || type === "PUT" || type === "DELETE" ? s.data : null ); - - } catch( sendError ) { - jQuery.ajax.handleError( s, xhr, null, e ); + // Main method + ajax: function( url , s ) { - // Fire the complete handlers - jQuery.ajax.handleComplete( s, xhr, status, data ); + if ( arguments.length === 1 ) { + s = url; + url = s ? s.url : undefined; } - // firefox 1.5 doesn't fire statechange for sync requests - if ( !s.async ) { - onreadystatechange(); - } + return jQuery.xhr().open( s ? s.type : undefined , url ).send( undefined , s ); - // return XMLHttpRequest to allow aborting the request etc. - return xhr; }, // 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); - }; - + 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. @@ -527,10 +308,10 @@ jQuery.extend({ }); function buildParams( prefix, obj, traditional, add ) { - if ( jQuery.isArray(obj) ) { + if ( jQuery.isArray(obj) && obj.length ) { // Serialize array item. jQuery.each( obj, function( i, v ) { - if ( traditional || /\[\]$/.test( prefix ) ) { + if ( traditional || rbracket.test( prefix ) ) { // Treat each array item as a scalar. add( prefix, v ); @@ -545,134 +326,66 @@ function buildParams( prefix, obj, traditional, add ) { buildParams( prefix + "[" + ( typeof v === "object" || jQuery.isArray(v) ? i : "" ) + "]", v, traditional, add ); } }); - + } else if ( !traditional && obj != null && typeof obj === "object" ) { + // If we see an array here, it is empty and should be treated as an empty + // object + if ( jQuery.isArray( obj ) || jQuery.isEmptyObject( obj ) ) { + add( prefix, "" ); + // Serialize object item. - jQuery.each( obj, function( k, v ) { - buildParams( prefix + "[" + k + "]", v, traditional, add ); - }); - + } else { + jQuery.each( obj, function( k, v ) { + buildParams( prefix + "[" + k + "]", v, traditional, add ); + }); + } + } else { // Serialize scalar item. add( prefix, obj ); } } -jQuery.extend( jQuery.ajax, { +// 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: {}, + etag: {} - handleError: function( s, xhr, status, e ) { - // If a local callback was specified, fire it - if ( s.error ) { - s.error.call( s.context, xhr, status, e ); - } - - // Fire the global callback - if ( s.global ) { - jQuery.ajax.triggerGlobal( s, "ajaxError", [xhr, s, e] ); - } - }, - - 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.ajax.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.ajax.triggerGlobal( s, "ajaxComplete", [xhr, s] ); - } - - // Handle the global AJAX counter - if ( s.global && jQuery.ajax.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 ) { +/* + * 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 { - // IE error sometimes returns 1223 when it should be 204 so treat it as success, see #1450 - return !xhr.status && location.protocol === "file:" || - // Opera returns 0 when status is 304 - ( xhr.status >= 200 && xhr.status < 300 ) || - xhr.status === 304 || xhr.status === 1223 || xhr.status === 0; - } catch(e) {} - - return false; - }, - - // Determines if an XMLHttpRequest returns NotModified - httpNotModified: function( xhr, url ) { - var lastModified = xhr.getResponseHeader("Last-Modified"), - etag = xhr.getResponseHeader("Etag"); - - if ( lastModified ) { - jQuery.ajax.lastModified[url] = lastModified; - } - - if ( etag ) { - jQuery.ajax.etag[url] = etag; - } - - // Opera returns 0 when status is 304 - return xhr.status === 304 || xhr.status === 0; - }, - - httpData: function( xhr, type, s ) { - var ct = xhr.getResponseHeader("content-type") || "", - xml = type === "xml" || !type && ct.indexOf("xml") >= 0, - data = xml ? xhr.responseXML : xhr.responseText; - - if ( xml && data.documentElement.nodeName === "parsererror" ) { - jQuery.error( "parsererror" ); - } + return new window.XMLHttpRequest(); + } catch( xhrError ) {} + } - // Allow a pre-filtering function to sanitize the response - // s is checked to keep backwards compatibility - if ( s && s.dataFilter ) { - data = s.dataFilter( data, type ); - } + try { + return new window.ActiveXObject("Microsoft.XMLHTTP"); + } catch( activeError ) {} + }; +} - // 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 ); +var testXHR = jQuery.ajaxSettings.xhr(); - // If the type is "script", eval it in global context - } else if ( type === "script" || !type && ct.indexOf("javascript") >= 0 ) { - jQuery.globalEval( data ); - } - } - - return data; - } +// Does this browser support XHR requests? +jQuery.support.ajax = !!testXHR; -}); +// Does this browser support crossDomain XHR requests +jQuery.support.cors = testXHR && "withCredentials" in testXHR; -// For backwards compatibility -jQuery.extend( jQuery.ajax ); +})( jQuery );