// http://jquery.com/docs/ajax/
/**
- * Load HTML from a remote file and inject it into the DOM
+ * 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 <div id="feeds"></div>
+ * @result <div id="feeds"><b>45</b> feeds found.</div>
+ *
+ * @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
*/
jQuery.fn.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 <div id="feeds"></div>
+ * @result <div id="feeds"><b>45</b> feeds found.</div>
+ *
+ * @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
+ */
jQuery.fn.load = function( url, params, callback, ifModified ) {
if ( url.constructor == Function )
return this.bind("load", url);
};
// 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 ?
jQuery.extend({
/**
- * Load a remote page using a GET request
+ * Load a remote page using an HTTP GET request.
+ *
+ * @example $.get("test.cgi")
+ *
+ * @name $.get
+ * @type jQuery
+ * @param String url The URL of the HTML file to load.
+ * @cat AJAX
+ */
+
+ /**
+ * Load a remote page using an HTTP GET request.
+ *
+ * @example $.get("test.cgi", { name: "John", time: "2pm" } )
+ *
+ * @name $.get
+ * @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.
+ * @cat AJAX
+ */
+
+ /**
+ * Load a remote page using an HTTP GET request.
+ *
+ * @example $.get("test.cgi", function(){
+ * alert("Data Loaded.");
+ * })
+ *
+ * @name $.get
+ * @type jQuery
+ * @param String url The URL of the HTML file to load.
+ * @param Function callback A function to be executed whenever the data is loaded.
+ * @cat AJAX
+ */
+
+ /**
+ * Load a remote page using an HTTP GET request.
+ *
+ * @example $.get("test.cgi",
+ * { name: "John", time: "2pm" },
+ * function(){ alert("Data Loaded."); }
+ * )
+ *
+ * @name $.get
+ * @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
*/
get: function( url, data, callback, type, ifModified ) {
if ( data.constructor == Function ) {
if ( callback ) callback( jQuery.httpData(r,type), status );
}, ifModified);
},
+
+ /**
+ * Load a remote page using an HTTP GET request, and only if it hasn't
+ * been modified since it was last retieved.
+ *
+ * @example $.getIfModified("test.cgi")
+ *
+ * @name $.getIfModified
+ * @type jQuery
+ * @param String url The URL of the HTML file to load.
+ * @cat AJAX
+ */
+
+ /**
+ * Load a remote page using an HTTP GET request, and only if it hasn't
+ * been modified since it was last retieved.
+ *
+ * @example $.getIfModified("test.cgi", { name: "John", time: "2pm" })
+ *
+ * @name $.getIfModified
+ * @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.
+ * @cat AJAX
+ */
+
+ /**
+ * Load a remote page using an HTTP GET request, and only if it hasn't
+ * been modified since it was last retieved.
+ *
+ * @example $.getIfModified("test.cgi", function(){
+ * alert("Data Loaded.");
+ * })
+ *
+ * @name $.getIfModified
+ * @type jQuery
+ * @param String url The URL of the HTML file to load.
+ * @param Function callback A function to be executed whenever the data is loaded.
+ * @cat AJAX
+ */
+ /**
+ * Load a remote page using an HTTP GET request, and only if it hasn't
+ * been modified since it was last retieved.
+ *
+ * @example $.getIfModified("test.cgi",
+ * { name: "John", time: "2pm" },
+ * function(){ alert("Data Loaded."); }
+ * )
+ *
+ * @name $.getIfModified
+ * @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
+ */
getIfModified: function( url, data, callback, type ) {
jQuery.get(url, data, callback, type, 1);
},
// Watch for a new set of requests
if ( ! jQuery.active++ )
jQuery.event.trigger( "ajaxStart" );
+
+ var requestDone = false;
// Create the request object
var xml = new XMLHttpRequest();
// Wait for a response to come back
var onreadystatechange = function(istimeout){
// The transfer is complete and the data is available, or the request timed out
- if ( xml && (xml.readyState == 4 || istimeout) ) {
- var status = jQuery.httpSuccess( xml ) && !istimeout ?
+ 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
// Cancel the request
xml.abort();
- // for Opera. Opera does't call onreadystatechange when aborted.
- if (xml) onreadystatechange(1);
+ if ( !requestDone ) onreadystatechange( "timeout" );
// Clear from memory
xml = null;
// 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;
var xmlRes = xml.getResponseHeader("Last-Modified");
// Firefox always returns 200. check Last-Modified date
- if( xml.status == 304 || xmlRes == jQuery.lastModified[url] ) return true;
+ return xml.status == 304 || xmlRes == jQuery.lastModified[url] ||
+ jQuery.browser.safari && xml.status == undefined;
} catch(e){}
return false;
// 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 );
+
return data;
},
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