X-Git-Url: http://git.asbjorn.biz/?p=jquery.git;a=blobdiff_plain;f=src%2Fajax%2Fjsonp.js;h=675ecc085963ae143cf8b2d8d8e84c64f93959aa;hp=1df5dd42792bbcf8aadedc87e2e596ec20faff28;hb=8ab23aec2c333834a6e442fa15b73125ba857afe;hpb=d9cb69873c0be7cb2f65d24deeb6a01fada0661b diff --git a/src/ajax/jsonp.js b/src/ajax/jsonp.js index 1df5dd4..675ecc0 100644 --- a/src/ajax/jsonp.js +++ b/src/ajax/jsonp.js @@ -11,9 +11,7 @@ jQuery.ajaxSetup({ return "jsonp" + jsc++; } -// Normalize jsonp queries -// 1) put callback parameter in url or data -// 2) sneakily ensure transportDataType is always jsonp for jsonp requests +// Detect, normalize options and install callbacks for jsonp requests }).ajaxPrefilter("json jsonp", function(s, originalSettings) { if ( s.dataTypes[ 0 ] === "jsonp" || @@ -22,8 +20,10 @@ jQuery.ajaxSetup({ jsre.test(s.url) || typeof(s.data) === "string" && jsre.test(s.data) ) { - var jsonpCallback = s.jsonpCallback = + var responseContainer, + jsonpCallback = s.jsonpCallback = jQuery.isFunction( s.jsonpCallback ) ? s.jsonpCallback() : s.jsonpCallback, + previous = window[ jsonpCallback ], url = s.url.replace(jsre, "$1" + jsonpCallback + "$2"), data = s.url === url && typeof(s.data) === "string" ? s.data.replace(jsre, "$1" + jsonpCallback + "$2") : s.data; @@ -33,51 +33,42 @@ jQuery.ajaxSetup({ s.url = url; s.data = data; - s.dataTypes[ 0 ] = "jsonp"; - } - -// Bind transport to jsonp dataType -}).ajaxTransport("jsonp", function(s) { - // 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; - // 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] ); + // 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){} } - } else { - // else, more memory leak avoidance - try{ delete window[ jsonpCallback ]; } catch(e){} - } - }, s.complete ]; + }, s.complete ]; - // 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 ]; + }; - // 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 ]; - }; + // force json dataType + s.dataTypes[ 0 ] = "json"; - // Delegate to script transport - return "script"; + // Delegate to script + return "script"; + } }); })( jQuery );