// Docs Here:
// http://jquery.com/docs/ajax/
-if ( typeof XMLHttpRequest == 'undefined' && typeof window.ActiveXObject == 'function') {
- var XMLHttpRequest = function() {
- return new ActiveXObject((navigator.userAgent.toLowerCase().indexOf('msie 5') >= 0) ?
- "Microsoft.XMLHTTP" : "Msxml2.XMLHTTP");
- };
-}
+/**
+ * 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);
-$.xml = function( type, url, data, ret ) {
- var xml = new XMLHttpRequest();
+ // Default to a GET request
+ var type = "GET";
- if ( xml ) {
- xml.open(type || "GET", url, true);
+ // 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){
+
+ // 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] );
+ });
+
+ // Execute all the scripts inside of the newly-injected HTML
+ $("script", self).each(function(){
+ eval( this.text || this.textContent || this.innerHTML || "");
+ });
- if ( data )
- xml.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
-
- if ( ret )
- xml.onreadystatechange = function() {
- if ( xml.readyState == 4 ) ret(xml);
- };
-
- xml.send(data)
- }
-};
-
-$.httpData = function(r,type) {
- return r.getResponseHeader("content-type").indexOf("xml") > 0 || type == "xml" ?
- r.responseXML : r.responseText;
-};
-
-$.get = function( url, ret, type ) {
- $.xml( "GET", url, null, function(r) {
- if ( ret ) ret( $.httpData(r,type) );
- });
+ });
+
+ return this;
};
-$.getXML = function( url, ret ) {
- $.get( url, ret, "xml" );
-};
+// If IE is used, create a wrapper for the XMLHttpRequest object
+if ( jQuery.browser.msie )
+ XMLHttpRequest = function(){
+ return new ActiveXObject(
+ navigator.userAgent.indexOf("MSIE 5") >= 0 ?
+ "Microsoft.XMLHTTP" : "Msxml2.XMLHTTP"
+ );
+ };
-$.post = function( url, data, ret, type ) {
- $.xml( "POST", url, $.param(data), function(r) {
- if ( ret ) ret( $.httpData(r,type) );
- });
+// Attach a bunch of functions for handling common AJAX events
+new function(){
+ var e = "ajaxStart,ajaxStop,ajaxComplete,ajaxError,ajaxSuccess".split(',');
+
+ for ( var i = 0; i < e.length; i++ ) new function(){
+ var o = e[i];
+ jQuery.fn[o] = function(f){
+ return this.bind(o, f);
+ };
+ }
};
-$.postXML = function( url, data, ret ) {
- $.post( url, data, ret, "xml" );
-};
+jQuery.extend({
-$.param = function(a) {
- var s = [];
- for ( var i in a )
- s[s.length] = i + "=" + encodeURIComponent( a[i] );
- return s.join("&");
-};
+ /**
+ * Load a remote page using a GET request
+ */
+ get: function( url, data, callback, type ) {
+ if ( 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) {
+ if ( callback ) callback( jQuery.httpData(r,type) );
+ });
+ },
+
+ /**
+ * Load a remote page using a POST request.
+ */
+ 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) );
+ });
+ },
+
+ /**
+ * A common wrapper for making XMLHttpRequests
+ */
+ ajax: function( type, url, data, ret ) {
+ // 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;
+ data = type.data;
+ url = type.url;
+ type = type.type;
+ }
+
+ // Watch for a new set of requests
+ if ( ! jQuery.active++ )
+ jQuery.event.trigger( "ajaxStart" );
+
+ // Create the request object
+ var xml = new XMLHttpRequest();
+
+ // Open the socket
+ xml.open(type || "GET", url, true);
+
+ // 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
+ 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 ) ) {
+
+ // If a local callback was specified, fire it
+ if ( success ) success( xml );
+
+ // Fire the global callback
+ jQuery.event.trigger( "ajaxSuccess" );
+
+ // Otherwise, the request was not successful
+ } else {
+ // If a local callback was specified, fire it
+ if ( error ) error( xml );
+
+ // Fire the global callback
+ jQuery.event.trigger( "ajaxError" );
+ }
+
+ // The request was completed
+ jQuery.event.trigger( "ajaxComplete" );
+
+ // Handle the global AJAX counter
+ if ( ! --jQuery.active )
+ jQuery.event.trigger( "ajaxStop" );
+
+ // Process result
+ if ( ret ) ret(xml);
-$.fn.load = function(a,o,f) {
- // Arrrrghhhhhhhh!!
- // I overwrote the event plugin's .load
- // this won't happen again, I hope -John
- if ( a && a.constructor == Function )
- return this.bind("load", a);
+ // Stop memory leaks
+ xml.onreadystatechange = function(){};
+ xml = null;
+ }
+ };
+
+ // Send the data
+ xml.send(data);
+ },
+
+ // Counter for holding the number of active queries
+ active: 0,
+
+ // 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:";
+ } 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.
+ 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;
+ },
+
+ // 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 ) {
+ // 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] ) );
+ }
+
+ // Return the resulting serialization
+ return s.join("&");
+ }
- var t = "GET";
- if ( o && o.constructor == Function ) {
- f = o; o = null;
- }
- if (o != null) {
- o = $.param(o);
- t = "POST";
- }
- var self = this;
- $.xml(t,a,o,function(h){
- var h = h.responseText;
- self.html(h).find("script").each(function(){
- try {
- eval( this.text || this.textContent || this.innerHTML );
- } catch(e){}
- });
- if(f)f(h);
- });
- return this;
-};
+});
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