diff options
| author | 2014-06-13 21:51:04 -0300 | |
|---|---|---|
| committer | 2014-06-13 21:51:04 -0300 | |
| commit | 3dddbd8cc879402c2047919bccd20e6697082657 (patch) | |
| tree | 38d6290f37be1d67d91c46027974e6ee3372e232 /bower_components/jquery/src/ajax/xhr.js | |
| parent | 7ac2cf148f7a8ea0de126fed3360b49964ce9b45 (diff) | |
| parent | 58c4878526dec5510f23c812274686787d8724ba (diff) | |
Merge tag 'upstream/7.0.1'
Upstream version 7.0.1
Diffstat (limited to 'bower_components/jquery/src/ajax/xhr.js')
| -rw-r--r-- | bower_components/jquery/src/ajax/xhr.js | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/bower_components/jquery/src/ajax/xhr.js b/bower_components/jquery/src/ajax/xhr.js new file mode 100644 index 0000000..0f560f4 --- /dev/null +++ b/bower_components/jquery/src/ajax/xhr.js @@ -0,0 +1,196 @@ +define([ + "../core", + "../var/support", + "../ajax" +], function( jQuery, support ) { + +// Create the request object +// (This is still attached to ajaxSettings for backward compatibility) +jQuery.ajaxSettings.xhr = window.ActiveXObject !== undefined ? + // Support: IE6+ + function() { + + // XHR cannot access local files, always use ActiveX for that case + return !this.isLocal && + + // Support: IE7-8 + // oldIE XHR does not support non-RFC2616 methods (#13240) + // See http://msdn.microsoft.com/en-us/library/ie/ms536648(v=vs.85).aspx + // and http://www.w3.org/Protocols/rfc2616/rfc2616-sec9.html#sec9 + // Although this check for six methods instead of eight + // since IE also does not support "trace" and "connect" + /^(get|post|head|put|delete|options)$/i.test( this.type ) && + + createStandardXHR() || createActiveXHR(); + } : + // For all other browsers, use the standard XMLHttpRequest object + createStandardXHR; + +var xhrId = 0, + xhrCallbacks = {}, + xhrSupported = jQuery.ajaxSettings.xhr(); + +// Support: IE<10 +// Open requests must be manually aborted on unload (#5280) +if ( window.ActiveXObject ) { + jQuery( window ).on( "unload", function() { + for ( var key in xhrCallbacks ) { + xhrCallbacks[ key ]( undefined, true ); + } + }); +} + +// Determine support properties +support.cors = !!xhrSupported && ( "withCredentials" in xhrSupported ); +xhrSupported = support.ajax = !!xhrSupported; + +// Create transport if the browser can provide an xhr +if ( xhrSupported ) { + + jQuery.ajaxTransport(function( options ) { + // Cross domain only allowed if supported through XMLHttpRequest + if ( !options.crossDomain || support.cors ) { + + var callback; + + return { + send: function( headers, complete ) { + var i, + xhr = options.xhr(), + id = ++xhrId; + + // Open the socket + 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 ) { + // Support: IE<9 + // IE's ActiveXObject throws a 'Type Mismatch' exception when setting + // request header to a null-value. + // + // To keep consistent with other XHR implementations, cast the value + // to string and ignore `undefined`. + if ( headers[ i ] !== undefined ) { + xhr.setRequestHeader( i, headers[ i ] + "" ); + } + } + + // Do send the request + // This may raise an exception which is actually + // handled in jQuery.ajax (so no try/catch here) + xhr.send( ( options.hasContent && options.data ) || null ); + + // Listener + callback = function( _, isAbort ) { + var status, statusText, responses; + + // Was never called and is aborted or complete + if ( callback && ( isAbort || xhr.readyState === 4 ) ) { + // Clean up + delete xhrCallbacks[ id ]; + callback = undefined; + xhr.onreadystatechange = jQuery.noop; + + // Abort manually if needed + if ( isAbort ) { + if ( xhr.readyState !== 4 ) { + xhr.abort(); + } + } else { + responses = {}; + status = xhr.status; + + // Support: IE<10 + // Accessing binary-data responseText throws an exception + // (#11426) + if ( typeof xhr.responseText === "string" ) { + responses.text = xhr.responseText; + } + + // Firefox throws an exception when accessing + // statusText for faulty cross-domain requests + try { + statusText = xhr.statusText; + } catch( e ) { + // We normalize with Webkit giving an empty statusText + statusText = ""; + } + + // Filter status for non standard behaviors + + // If the request is local and we have data: assume a success + // (success with no data won't get notified, that's the best we + // can do given current implementations) + if ( !status && options.isLocal && !options.crossDomain ) { + status = responses.text ? 200 : 404; + // IE - #1450: sometimes returns 1223 when it should be 204 + } else if ( status === 1223 ) { + status = 204; + } + } + } + + // Call complete if needed + if ( responses ) { + complete( status, statusText, responses, xhr.getAllResponseHeaders() ); + } + }; + + if ( !options.async ) { + // if we're in sync mode we fire the callback + callback(); + } else if ( xhr.readyState === 4 ) { + // (IE6 & IE7) if it's in cache and has been + // retrieved directly we need to fire the callback + setTimeout( callback ); + } else { + // Add to the list of active xhr callbacks + xhr.onreadystatechange = xhrCallbacks[ id ] = callback; + } + }, + + abort: function() { + if ( callback ) { + callback( undefined, true ); + } + } + }; + } + }); +} + +// Functions to create xhrs +function createStandardXHR() { + try { + return new window.XMLHttpRequest(); + } catch( e ) {} +} + +function createActiveXHR() { + try { + return new window.ActiveXObject( "Microsoft.XMLHTTP" ); + } catch( e ) {} +} + +}); |
