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Ensures callback placeholders are tested for and eventually replaced in data only when contentType is application/x-www-form-urlencoded and data is a string. Removes json to jsonp promotion when jsonp or jsonpCallback options are present. Uses new Deferred.always method to bind cleanUp function.

1.7/enhancement_8685
jaubourg 2011-04-13 19:27:19 +02:00
parent 4344d08417
commit 4ad9b44dea
1 changed files with 14 additions and 16 deletions
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30
src/ajax/jsonp.js
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@ -14,13 +14,12 @@ jQuery.ajaxSetup({
// Detect, normalize options and install callbacks for jsonp requests
jQuery.ajaxPrefilter( "json jsonp", function( s, originalSettings, jqXHR ) {
var dataIsString = ( typeof s.data === "string" );
var inspectData = s.contentType === "application/x-www-form-urlencoded" &&
( typeof s.data === "string" );
if ( s.dataTypes[ 0 ] === "jsonp" ||
originalSettings.jsonpCallback ||
originalSettings.jsonp != null ||
s.jsonp !== false && ( jsre.test( s.url ) ||
dataIsString && jsre.test( s.data ) ) ) {
inspectData && jsre.test( s.data ) ) ) {
var responseContainer,
jsonpCallback = s.jsonpCallback =
@ -28,20 +27,12 @@ jQuery.ajaxPrefilter( "json jsonp", function( s, originalSettings, jqXHR ) {
previous = window[ jsonpCallback ],
url = s.url,
data = s.data,
replace = "$1" + jsonpCallback + "$2",
cleanUp = function() {
// Set callback back to previous value
window[ jsonpCallback ] = previous;
// Call if it was a function and we have a response
if ( responseContainer && jQuery.isFunction( previous ) ) {
window[ jsonpCallback ]( responseContainer[ 0 ] );
}
};
replace = "$1" + jsonpCallback + "$2";
if ( s.jsonp !== false ) {
url = url.replace( jsre, replace );
if ( s.url === url ) {
if ( dataIsString ) {
if ( inspectData ) {
data = data.replace( jsre, replace );
}
if ( s.data === data ) {
@ -59,8 +50,15 @@ jQuery.ajaxPrefilter( "json jsonp", function( s, originalSettings, jqXHR ) {
responseContainer = [ response ];
};
// Install cleanUp function
jqXHR.then( cleanUp, cleanUp );
// Clean-up function
jqXHR.always(function() {
// Set callback back to previous value
window[ jsonpCallback ] = previous;
// Call if it was a function and we have a response
if ( responseContainer && jQuery.isFunction( previous ) ) {
window[ jsonpCallback ]( responseContainer[ 0 ] );
}
});
// Use data converter to retrieve json after script execution
s.converters["script json"] = function() {