(function( jQuery ) {
var jsc = jQuery.now(),
- jsre = /\=\?(&|$)/,
- rquery_jsonp = /\?/;
+ jsre = /(\=)\?(&|$)|()\?\?()/i;
-// Default jsonp callback name
-jQuery.ajaxSettings.jsonpCallback = function() {
- return "jsonp" + jsc++;
-};
-
-// Normalize jsonp queries
-// 1) put callback parameter in url or data
-// 2) sneakily ensure transportDataType is json
-// 3) ensure options jsonp is always provided so that jsonp requests are always
-// json request with the jsonp option set
-jQuery.ajax.prefilter("json jsonp", function(s) {
+// Default jsonp settings
+jQuery.ajaxSetup({
+ jsonp: "callback",
+ jsonpCallback: function() {
+ return jQuery.expando + "_" + ( jsc++ );
+ }
+});
- var transportDataType = s.dataTypes[ 0 ];
+// Detect, normalize options and install callbacks for jsonp requests
+jQuery.ajaxPrefilter( "json jsonp", function( s, originalSettings, dataIsString /* internal */ ) {
- s.dataTypes[ 0 ] = "json";
+ dataIsString = ( typeof s.data === "string" );
- if ( s.jsonp ||
- transportDataType === "jsonp" ||
- transportDataType === "json" && ( jsre.test(s.url) || typeof(s.data) === "string" && jsre.test(s.data) ) ) {
+ if ( s.dataTypes[ 0 ] === "jsonp" ||
+ originalSettings.jsonpCallback ||
+ originalSettings.jsonp != null ||
+ s.jsonp !== false && ( jsre.test( s.url ) ||
+ dataIsString && jsre.test( s.data ) ) ) {
- var jsonp = s.jsonp = s.jsonp || "callback",
+ 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 = url += (rquery_jsonp.test( url ) ? "&" : "?") + 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;
- }
-
-// Bind transport to json dataType
-}).transport("json", function(s) {
- if ( s.jsonp ) {
-
- // Put callback in place
- var responseContainer,
- jsonpCallback = s.jsonpCallback,
- previous = window[ jsonpCallback ];
-
- window [ jsonpCallback ] = function( response ) {
- responseContainer = [response];
+ window[ jsonpCallback ] = function( response ) {
+ responseContainer = [ response ];
};
- s.complete = [function() {
+ 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] );
+ if ( responseContainer && jQuery.isFunction( previous ) ) {
+ window[ jsonpCallback ] ( responseContainer[ 0 ] );
}
} else {
// else, more memory leak avoidance
- try{ delete window[ jsonpCallback ]; } catch(e){}
+ try{
+ delete window[ jsonpCallback ];
+ } catch( e ) {}
}
}, s.complete ];
return responseContainer[ 0 ];
};
- // Delegate to script transport
+ // force json dataType
+ s.dataTypes[ 0 ] = "json";
+
+ // Delegate to script
return "script";
}
-});
+} );
})( jQuery );