(function( jQuery ) {
var jsc = jQuery.now(),
- jsre = /\=(?:\?|%3F)(&|$)/i,
- rquery_jsonp = /\?/;
+ jsre = /(\=)\?(&|$)|()\?\?()/i;
// Default jsonp settings
jQuery.ajaxSetup({
jsonp: "callback",
jsonpCallback: function() {
- return "jsonp" + jsc++;
+ return jQuery.expando + "_" + ( jsc++ );
}
});
-// Normalize jsonp queries
-// 1) put callback parameter in url or data
-// 2) sneakily ensure transportDataType is always jsonp for jsonp requests
-jQuery.ajax.prefilter("json jsonp", function(s, originalSettings) {
+// Detect, normalize options and install callbacks for jsonp requests
+jQuery.ajaxPrefilter( "json jsonp", function( s, originalSettings, dataIsString /* internal */ ) {
+
+ dataIsString = ( typeof s.data === "string" );
if ( s.dataTypes[ 0 ] === "jsonp" ||
- originalSettings.jsonp ||
originalSettings.jsonpCallback ||
- jsre.test(s.url) ||
- typeof(s.data) === "string" && jsre.test(s.data) ) {
+ originalSettings.jsonp != null ||
+ s.jsonp !== false && ( jsre.test( s.url ) ||
+ dataIsString && jsre.test( s.data ) ) ) {
- var jsonpCallback = s.jsonpCallback =
+ var responseContainer,
+ jsonpCallback = s.jsonpCallback =
jQuery.isFunction( s.jsonpCallback ) ? s.jsonpCallback() : s.jsonpCallback,
- url = s.url.replace(jsre, "=" + jsonpCallback + "$1"),
- data = s.url === url && typeof(s.data) === "string" ? s.data.replace(jsre, "=" + jsonpCallback + "$1") : s.data;
-
- if ( url === s.url && data === s.data ) {
- url += (rquery_jsonp.test( url ) ? "&" : "?") + s.jsonp + "=" + jsonpCallback;
+ previous = window[ jsonpCallback ],
+ url = s.url,
+ data = s.data,
+ replace = "$1" + jsonpCallback + "$2";
+
+ if ( s.jsonp !== false ) {
+ url = url.replace( jsre, replace );
+ if ( s.url === url ) {
+ if ( dataIsString ) {
+ data = data.replace( jsre, replace );
+ }
+ if ( s.data === data ) {
+ // Add callback manually
+ url += (/\?/.test( url ) ? "&" : "?") + s.jsonp + "=" + jsonpCallback;
+ }
+ }
}
s.url = url;
s.data = data;
- s.dataTypes[ 0 ] = "jsonp";
- }
-
-// Bind transport to jsonp dataType
-}).transport("jsonp", function(s) {
-
- // Put callback in place
- var responseContainer,
- jsonpCallback = s.jsonpCallback,
- previous = window[ jsonpCallback ];
-
- window [ jsonpCallback ] = function( response ) {
- responseContainer = [response];
- };
- s.complete = [function() {
+ window[ jsonpCallback ] = function( response ) {
+ responseContainer = [ response ];
+ };
+
+ s.complete = [ function() {
+
+ // Set callback back to previous value
+ window[ jsonpCallback ] = previous;
+
+ // Call if it was a function and we have a response
+ if ( previous) {
+ if ( responseContainer && jQuery.isFunction( previous ) ) {
+ window[ jsonpCallback ] ( responseContainer[ 0 ] );
+ }
+ } else {
+ // else, more memory leak avoidance
+ try{
+ delete window[ jsonpCallback ];
+ } catch( e ) {}
+ }
- // Set callback back to previous value
- window[ jsonpCallback ] = previous;
+ }, s.complete ];
- // Call if it was a function and we have a response
- if ( previous) {
- if ( responseContainer && jQuery.isFunction ( previous ) ) {
- window[ jsonpCallback ] ( responseContainer[0] );
+ // Use data converter to retrieve json after script execution
+ s.converters["script json"] = function() {
+ if ( ! responseContainer ) {
+ jQuery.error( jsonpCallback + " was not called" );
}
- } else {
- // else, more memory leak avoidance
- try{ delete window[ jsonpCallback ]; } catch(e){}
- }
+ return responseContainer[ 0 ];
+ };
- }, s.complete ];
+ // force json dataType
+ s.dataTypes[ 0 ] = "json";
- // Sneakily ensure this will be handled as json
- s.dataTypes[ 0 ] = "json";
-
- // Use data converter to retrieve json after script execution
- s.converters["script json"] = function() {
- if ( ! responseContainer ) {
- jQuery.error( jsonpCallback + " was not called" );
- }
- return responseContainer[ 0 ];
- };
-
- // Delegate to script transport
- return "script";
-});
+ // Delegate to script
+ return "script";
+ }
+} );
})( jQuery );