103 lines
2.7 KiB
JavaScript
103 lines
2.7 KiB
JavaScript
define( [
|
|
"../core",
|
|
"./var/nonce",
|
|
"./var/rquery",
|
|
"../ajax"
|
|
], function( jQuery, nonce, rquery ) {
|
|
|
|
"use strict";
|
|
|
|
var oldCallbacks = [],
|
|
rjsonp = /(=)\?(?=&|$)|\?\?/;
|
|
|
|
// Default jsonp settings
|
|
jQuery.ajaxSetup( {
|
|
jsonp: "callback",
|
|
jsonpCallback: function() {
|
|
var callback = oldCallbacks.pop() || ( jQuery.expando + "_" + ( nonce++ ) );
|
|
this[ callback ] = true;
|
|
return callback;
|
|
}
|
|
} );
|
|
|
|
// Detect, normalize options and install callbacks for jsonp requests
|
|
jQuery.ajaxPrefilter( "json jsonp", function( s, originalSettings, jqXHR ) {
|
|
|
|
var callbackName, overwritten, responseContainer,
|
|
jsonProp = s.jsonp !== false && ( rjsonp.test( s.url ) ?
|
|
"url" :
|
|
typeof s.data === "string" &&
|
|
( s.contentType || "" )
|
|
.indexOf( "application/x-www-form-urlencoded" ) === 0 &&
|
|
rjsonp.test( s.data ) && "data"
|
|
);
|
|
|
|
// Handle iff the expected data type is "jsonp" or we have a parameter to set
|
|
if ( jsonProp || s.dataTypes[ 0 ] === "jsonp" ) {
|
|
|
|
// Get callback name, remembering preexisting value associated with it
|
|
callbackName = s.jsonpCallback = jQuery.isFunction( s.jsonpCallback ) ?
|
|
s.jsonpCallback() :
|
|
s.jsonpCallback;
|
|
|
|
// Insert callback into url or form data
|
|
if ( jsonProp ) {
|
|
s[ jsonProp ] = s[ jsonProp ].replace( rjsonp, "$1" + callbackName );
|
|
} else if ( s.jsonp !== false ) {
|
|
s.url += ( rquery.test( s.url ) ? "&" : "?" ) + s.jsonp + "=" + callbackName;
|
|
}
|
|
|
|
// Use data converter to retrieve json after script execution
|
|
s.converters[ "script json" ] = function() {
|
|
if ( !responseContainer ) {
|
|
jQuery.error( callbackName + " was not called" );
|
|
}
|
|
return responseContainer[ 0 ];
|
|
};
|
|
|
|
// Force json dataType
|
|
s.dataTypes[ 0 ] = "json";
|
|
|
|
// Install callback
|
|
overwritten = window[ callbackName ];
|
|
window[ callbackName ] = function() {
|
|
responseContainer = arguments;
|
|
};
|
|
|
|
// Clean-up function (fires after converters)
|
|
jqXHR.always( function() {
|
|
|
|
// If previous value didn't exist - remove it
|
|
if ( overwritten === undefined ) {
|
|
jQuery( window ).removeProp( callbackName );
|
|
|
|
// Otherwise restore preexisting value
|
|
} else {
|
|
window[ callbackName ] = overwritten;
|
|
}
|
|
|
|
// Save back as free
|
|
if ( s[ callbackName ] ) {
|
|
|
|
// Make sure that re-using the options doesn't screw things around
|
|
s.jsonpCallback = originalSettings.jsonpCallback;
|
|
|
|
// Save the callback name for future use
|
|
oldCallbacks.push( callbackName );
|
|
}
|
|
|
|
// Call if it was a function and we have a response
|
|
if ( responseContainer && jQuery.isFunction( overwritten ) ) {
|
|
overwritten( responseContainer[ 0 ] );
|
|
}
|
|
|
|
responseContainer = overwritten = undefined;
|
|
} );
|
|
|
|
// Delegate to script
|
|
return "script";
|
|
}
|
|
} );
|
|
|
|
} );
|