X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=src%2Fajax.js;h=07e706c4c5fb55b9cb9ceb90d968e5438ee94fa0;hb=7afe6dcc0837ac00cea7fbb7de6fb95b745148c2;hp=f8ac52ece9bd26d9c8a1df26f8de83333641cfc6;hpb=183f37e4b4128af7ba096ac40046768b84b6d66e;p=jquery.git diff --git a/src/ajax.js b/src/ajax.js index f8ac52e..07e706c 100644 --- a/src/ajax.js +++ b/src/ajax.js @@ -1,7 +1,7 @@ var jsc = now(), - rscript = //g, + rscript = //gi, rselectTextarea = /select|textarea/i, - rinput = /text|hidden|password|search/i, + rinput = /color|date|datetime|email|hidden|month|number|password|range|search|tel|text|time|url|week/i, jsre = /=\?(&|$)/, rquery = /\?/, rts = /(\?|&)_=.*?(&|$)/, @@ -15,6 +15,10 @@ jQuery.fn.extend({ load: function( url, params, callback ) { if ( typeof url !== "string" ) { return this._load( url ); + + // Don't do a request if no elements are being requested + } else if ( !this.length ) { + return this; } var off = url.indexOf(" "); @@ -36,7 +40,7 @@ jQuery.fn.extend({ // Otherwise, build a param string } else if ( typeof params === "object" ) { - params = jQuery.param( params ); + params = jQuery.param( params, jQuery.ajaxSettings.traditional ); type = "POST"; } } @@ -48,7 +52,7 @@ jQuery.fn.extend({ dataType: "html", data: params, context:this, - complete: function(res, status){ + 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 @@ -79,31 +83,31 @@ jQuery.fn.extend({ return jQuery.param(this.serializeArray()); }, serializeArray: function() { - return this.map(function(){ + return this.map(function() { return this.elements ? jQuery.makeArray(this.elements) : this; }) - .filter(function(){ + .filter(function() { return this.name && !this.disabled && (this.checked || 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); }; }); @@ -111,8 +115,9 @@ jQuery.each( "ajaxStart,ajaxStop,ajaxComplete,ajaxError,ajaxSuccess,ajaxSend".sp jQuery.extend({ get: function( url, data, callback, type ) { - // shift arguments if data argument was ommited + // shift arguments if data argument was omited if ( jQuery.isFunction( data ) ) { + type = type || callback; callback = data; data = null; } @@ -135,7 +140,9 @@ jQuery.extend({ }, post: function( url, data, callback, type ) { + // shift arguments if data argument was omited if ( jQuery.isFunction( data ) ) { + type = type || callback; callback = data; data = {}; } @@ -165,15 +172,21 @@ jQuery.extend({ data: null, username: null, password: null, + traditional: false, */ // Create the request object; Microsoft failed to properly - // implement the XMLHttpRequest in IE7, so we use the ActiveXObject when it is available + // 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: function(){ - return window.ActiveXObject ? - new ActiveXObject("Microsoft.XMLHTTP") : - new XMLHttpRequest(); - }, + xhr: window.XMLHttpRequest && (window.location.protocol !== "file:" || !window.ActiveXObject) ? + function() { + return new window.XMLHttpRequest(); + } : + function() { + try { + return new window.ActiveXObject("Microsoft.XMLHTTP"); + } catch(e) {} + }, accepts: { xml: "application/xml, text/xml", html: "text/html", @@ -188,18 +201,16 @@ jQuery.extend({ lastModified: {}, etag: {}, - 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)); + ajax: function( origSettings ) { + var s = jQuery.extend(true, {}, jQuery.ajaxSettings, origSettings); var jsonp, status, data, - callbackContext = s.context || window, + callbackContext = s.context || s, 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); + s.data = jQuery.param( s.data, s.traditional ); } // Handle JSONP Parameter Callbacks @@ -216,7 +227,7 @@ jQuery.extend({ // Build temporary JSONP function if ( s.dataType === "json" && (s.data && jsre.test(s.data) || jsre.test(s.url)) ) { - jsonp = "jsonp" + jsc++; + jsonp = s.jsonpCallback || ("jsonp" + jsc++); // Replace the =? sequence both in the query string and the data if ( s.data ) { @@ -230,13 +241,17 @@ jQuery.extend({ s.dataType = "script"; // Handle JSONP-style loading - window[ jsonp ] = function(tmp){ + window[ jsonp ] = window[ jsonp ] || function( tmp ) { data = tmp; success(); complete(); // Garbage collect window[ jsonp ] = undefined; - try{ delete window[ jsonp ]; } catch(e){} + + try { + delete window[ jsonp ]; + } catch(e) {} + if ( head ) { head.removeChild( script ); } @@ -268,13 +283,12 @@ jQuery.extend({ } // Matches an absolute URL, and saves the domain - var parts = rurl.exec( s.url ); + 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" && parts - && ( parts[1] && parts[1] !== location.protocol || parts[2] !== location.host )) { - + if ( s.dataType === "script" && type === "GET" && remote ) { var head = document.getElementsByTagName("head")[0] || document.documentElement; var script = document.createElement("script"); script.src = s.url; @@ -287,7 +301,7 @@ jQuery.extend({ var done = false; // Attach handlers for all browsers - script.onload = script.onreadystatechange = function(){ + script.onload = script.onreadystatechange = function() { if ( !done && (!this.readyState || this.readyState === "loaded" || this.readyState === "complete") ) { done = true; @@ -316,6 +330,10 @@ jQuery.extend({ // 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 ) { @@ -327,29 +345,32 @@ jQuery.extend({ // 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 ) { + 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]); - } + // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode. + if ( s.ifModified ) { + if ( jQuery.lastModified[s.url] ) { + xhr.setRequestHeader("If-Modified-Since", jQuery.lastModified[s.url]); + } - if ( jQuery.etag[s.url] ) { - xhr.setRequestHeader("If-None-Match", jQuery.etag[s.url]); - } + if ( jQuery.etag[s.url] ) { + xhr.setRequestHeader("If-None-Match", jQuery.etag[s.url]); } + } // Set header so the called script knows that it's an XMLHttpRequest - xhr.setRequestHeader("X-Requested-With", "XMLHttpRequest"); + // Only send the header if it's not a remote XHR + if ( !remote ) { + xhr.setRequestHeader("X-Requested-With", "XMLHttpRequest"); + } // Set the Accepts header for the server, depending on the dataType xhr.setRequestHeader("Accept", s.dataType && s.accepts[ s.dataType ] ? s.accepts[ s.dataType ] + ", */*" : s.accepts._default ); - } catch(e){} + } catch(e) {} // Allow custom headers/mimetypes and early abort if ( s.beforeSend && s.beforeSend.call(callbackContext, xhr, s) === false ) { @@ -368,29 +389,23 @@ jQuery.extend({ } // Wait for a response to come back - var onreadystatechange = function(isTimeout){ + var onreadystatechange = xhr.onreadystatechange = function( isTimeout ) { // The request was aborted, clear the interval and decrement jQuery.active if ( !xhr || 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" ); - } + requestDone = true; + if ( xhr ) { + xhr.onreadystatechange = jQuery.noop; + } + + // 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; - } + xhr.onreadystatechange = jQuery.noop; status = isTimeout === "timeout" ? "timeout" : @@ -423,7 +438,7 @@ jQuery.extend({ // Fire the complete handlers complete(); - if ( isTimeout ) { + if ( isTimeout === "timeout" ) { xhr.abort(); } @@ -434,19 +449,30 @@ jQuery.extend({ } }; - 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); - } + // 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() { + oldAbort.call( xhr ); + if ( xhr ) { + xhr.readyState = 0; + } + if ( !requestDone ) { + complete(); + } + onreadystatechange(); + }; + } catch(e) { } + + // 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 @@ -454,6 +480,8 @@ jQuery.extend({ xhr.send( type === "POST" || type === "PUT" ? s.data : null ); } catch(e) { jQuery.handleError(s, xhr, null, e); + // Fire the complete handlers + complete(); } // firefox 1.5 doesn't fire statechange for sync requests @@ -461,10 +489,10 @@ jQuery.extend({ onreadystatechange(); } - function success(){ + function success() { // If a local callback was specified, fire it and pass it the data if ( s.success ) { - s.success.call( callbackContext, data, status ); + s.success.call( callbackContext, data, status, xhr ); } // Fire the global callback @@ -473,7 +501,7 @@ jQuery.extend({ } } - function complete(){ + function complete() { // Process result if ( s.complete ) { s.complete.call( callbackContext, xhr, status); @@ -490,7 +518,7 @@ jQuery.extend({ } } - function trigger(type, args){ + function trigger(type, args) { (s.context ? jQuery(s.context) : jQuery.event).trigger(type, args); } @@ -521,7 +549,7 @@ jQuery.extend({ // Opera returns 0 when status is 304 ( xhr.status >= 200 && xhr.status < 300 ) || xhr.status === 304 || xhr.status === 1223 || xhr.status === 0; - } catch(e){} + } catch(e) {} return false; }, @@ -544,8 +572,8 @@ jQuery.extend({ }, httpData: function( xhr, type, s ) { - var ct = xhr.getResponseHeader("content-type"), - xml = type === "xml" || !type && ct && ct.indexOf("xml") >= 0, + var ct = xhr.getResponseHeader("content-type") || "", + xml = type === "xml" || !type && ct.indexOf("xml") >= 0, data = xml ? xhr.responseXML : xhr.responseText; if ( xml && data.documentElement.nodeName === "parsererror" ) { @@ -560,19 +588,29 @@ jQuery.extend({ // 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" ) { - if ( typeof JSON === "object" && JSON.parse ) { - data = JSON.parse( data ); + if ( type === "json" || !type && ct.indexOf("json") >= 0 ) { + // Make sure the incoming data is actual JSON + // Logic borrowed from http://json.org/json2.js + if (/^[\],:{}\s]*$/.test(data.replace(/\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g, "@") + .replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g, "]") + .replace(/(?:^|:|,)(?:\s*\[)+/g, ""))) { + + // Try to use the native JSON parser first + if ( window.JSON && window.JSON.parse ) { + data = window.JSON.parse( data ); + + } else { + data = (new Function("return " + data))(); + } + } else { - data = (new Function("return " + data))(); + throw "Invalid JSON: " + data; } + + // If the type is "script", eval it in global context + } else if ( type === "script" || !type && ct.indexOf("javascript") >= 0 ) { + jQuery.globalEval( data ); } } @@ -581,41 +619,64 @@ jQuery.extend({ // Serialize an array of form elements or a set of // key/values into a query string - param: function( a ) { + param: function( a, traditional ) { + var s = []; - - function add( key, 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 + + function add( 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); + } + + // 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 { - // Recursively encode parameters from object, - // building a prefix path as we go down - function buildParams(obj, prefix) - { + // If traditional, encode the "old" way (the way 1.3.2 or older + // did it), otherwise encode params recursively. + jQuery.each( a, function buildParams( prefix, obj ) { + if ( jQuery.isArray(obj) ) { - for ( var i = 0, length = obj.length; i < length; i++ ) { - buildParams( obj[i], prefix ); - }; - } else if( typeof(obj) == "object" ) { - for ( var j in obj ) { - var postfix = ((j.indexOf("[]") > 0) ? "[]" : ""); // move any brackets to the end - buildParams(obj[j], (prefix ? (prefix+"["+j.replace("[]", "")+"]"+postfix) : j) ); - } + // Serialize array item. + jQuery.each( obj, function( i, v ) { + if ( traditional ) { + // Treat each array item as a scalar. + add( prefix, v ); + } else { + // If array item is non-scalar (array or object), encode its + // numeric index to resolve deserialization ambiguity issues. + // Note that rack (as of 1.0.0) can't currently deserialize + // nested arrays properly, and attempting to do so may cause + // a server error. Possible fixes are to modify rack's + // deserialization algorithm or to provide an option or flag + // to force array serialization to be shallow. + buildParams( prefix + "[" + ( typeof v === "object" || jQuery.isArray(v) ? i : "" ) + "]", v ); + } + }); + + } else if ( !traditional && typeof obj === "object" ) { + // Serialize object item. + jQuery.each( obj, function( k, v ) { + buildParams( prefix + "[" + k + "]", v ); + }); + } else { - add( prefix, jQuery.isFunction(obj) ? obj() : obj ); + // Serialize scalar item. + add( prefix, obj ); } - } - buildParams(a); + }); } - + // Return the resulting serialization return s.join("&").replace(r20, "+"); }