Rewrite of the Ajax module by Julian Aubourg. Some (dated) details can be found here...

[jquery.git] / src / transports / script.js

diff --git a/src/transports/script.js b/src/transports/script.js
new file mode 100644 (file)
index 0000000..5470dec
--- /dev/null
+++ b/src/transports/script.js
@@ -0,0 +1,83 @@
+(function( jQuery ) {
+
+// Install text to script executor
+jQuery.extend( true, jQuery.ajaxSettings , {
+
+       accepts: {
+               script: "text/javascript, application/javascript"
+       },
+       
+       autoDataType: {
+               script: /javascript/
+       },
+               
+       dataConverters: {
+               "text => script": jQuery.globalEval
+       }
+} );
+
+// Bind script tag hack transport
+jQuery.xhr.bindTransport("script", function(s) {
+       
+       // Handle cache special case
+       if ( s.cache === undefined ) {
+               s.cache = false;
+       }
+       
+       // This transport only deals with cross domain get requests
+       if ( s.crossDomain && s.async && ( s.type === "GET" || ! s.data ) ) {
+               
+               s.global = false;
+               
+               var script,
+                       head = document.getElementsByTagName("head")[0] || document.documentElement;
+               
+               return {
+                       
+                       send: function(_, callback) {
+
+                               script = document.createElement("script");
+
+                               script.async = "async";
+
+                               if ( s.scriptCharset ) {
+                                       script.charset = s.scriptCharset;
+                               }
+                               
+                               script.src = s.url;
+                               
+                               // Attach handlers for all browsers
+                               script.onload = script.onreadystatechange = function(statusText) {
+                                       
+                                       if ( (!script.readyState ||
+                                                       script.readyState === "loaded" || script.readyState === "complete") ) {
+                                                               
+                                               // Handle memory leak in IE
+                                               script.onload = script.onreadystatechange = null;
+                                               
+                                               // Remove the script
+                                               if ( head && script.parentNode ) {
+                                                       head.removeChild( script );
+                                               }
+                                               
+                                               script = undefined;
+                                               
+                                               // Callback & dereference
+                                               callback(statusText ? 0 : 200, statusText || "success");
+                                       }
+                               };
+                               // 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 );
+                       },
+                       
+                       abort: function(statusText) {
+                               if ( script ) {
+                                       script.onload(statusText);
+                               }
+                       }
+               };
+       }
+});
+
+})(jQuery);