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