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import jQuery from "../core.js";
import "../ajax.js";
jQuery.ajaxSettings.xhr = function() {
return new window.XMLHttpRequest();
};
var xhrSuccessStatus = {
// File protocol always yields status code 0, assume 200
0: 200
};
jQuery.ajaxTransport( function( options ) {
var callback;
return {
send: function( headers, complete ) {
var i,
xhr = options.xhr();
xhr.open(
options.type,
options.url,
options.async,
options.username,
options.password
);
// Apply custom fields if provided
if ( options.xhrFields ) {
for ( i in options.xhrFields ) {
xhr[ i ] = options.xhrFields[ i ];
}
}
// Override mime type if needed
if ( options.mimeType && xhr.overrideMimeType ) {
xhr.overrideMimeType( options.mimeType );
}
// X-Requested-With header
// For cross-domain requests, seeing as conditions for a preflight are
// akin to a jigsaw puzzle, we simply never set it to be sure.
// (it can always be set on a per-request basis or even using ajaxSetup)
// For same-domain requests, won't change header if already provided.
if ( !options.crossDomain && !headers[ "X-Requested-With" ] ) {
headers[ "X-Requested-With" ] = "XMLHttpRequest";
}
// Set headers
for ( i in headers ) {
xhr.setRequestHeader( i, headers[ i ] );
}
// Callback
callback = function( type ) {
return function() {
if ( callback ) {
callback = xhr.onload = xhr.onerror = xhr.onabort = xhr.ontimeout = null;
if ( type === "abort" ) {
xhr.abort();
} else if ( type === "error" ) {
complete(
// File: protocol always yields status 0; see trac-8605, trac-14207
xhr.status,
xhr.statusText
);
} else {
complete(
xhrSuccessStatus[ xhr.status ] || xhr.status,
xhr.statusText,
// For XHR2 non-text, let the caller handle it (gh-2498)
( xhr.responseType || "text" ) === "text" ?
{ text: xhr.responseText } :
{ binary: xhr.response },
xhr.getAllResponseHeaders()
);
}
}
};
};
// Listen to events
xhr.onload = callback();
xhr.onabort = xhr.onerror = xhr.ontimeout = callback( "error" );
// Create the abort callback
callback = callback( "abort" );
try {
// Do send the request (this may raise an exception)
xhr.send( options.hasContent && options.data || null );
} catch ( e ) {
// trac-14683: Only rethrow if this hasn't been notified as an error yet
if ( callback ) {
throw e;
}
}
},
abort: function() {
if ( callback ) {
callback();
}
}
};
} );
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