Files
atom/HTML/pilot/proxy.js
2011-08-27 00:14:44 -07:00

84 lines
2.9 KiB
JavaScript

/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla Skywriter.
*
* The Initial Developer of the Original Code is
* Mozilla.
* Portions created by the Initial Developer are Copyright (C) 2009
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Julian Viereck (jviereck@mozilla.com)
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
define(function(require, exports, module) {
var Promise = require('pilot/promise').Promise;
exports.xhr = function(method, url, async, beforeSendCallback) {
var pr = new Promise();
if (!skywriter.proxy || !skywriter.proxy.xhr) {
var req = new XMLHttpRequest();
req.onreadystatechange = function() {
if (req.readyState !== 4) {
return;
}
var status = req.status;
if (status !== 0 && status !== 200) {
var error = new Error(req.responseText + ' (Status ' + req.status + ")");
error.xhr = req;
pr.reject(error);
return;
}
pr.resolve(req.responseText);
}.bind(this);
req.open("GET", url, async);
if (beforeSendCallback) {
beforeSendCallback(req);
}
req.send();
} else {
skywriter.proxy.xhr.call(this, method, url, async, beforeSendCallback, pr);
}
return pr;
};
exports.Worker = function(url) {
if (!skywriter.proxy || !skywriter.proxy.worker) {
return new Worker(url);
} else {
return new skywriter.proxy.worker(url);
}
};
});