lib/goog/net/wrapperxmlhttpfactory.js

1// Copyright 2010 The Closure Library Authors. All Rights Reserved.
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7// http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS-IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15/**
16 * @fileoverview Implementation of XmlHttpFactory which allows construction from
17 * simple factory methods.
18 * @author dbk@google.com (David Barrett-Kahn)
19 */
20
21goog.provide('goog.net.WrapperXmlHttpFactory');
22
23/** @suppress {extraRequire} Typedef. */
24goog.require('goog.net.XhrLike');
25goog.require('goog.net.XmlHttpFactory');
26
27
28
29/**
30 * An xhr factory subclass which can be constructed using two factory methods.
31 * This exists partly to allow the preservation of goog.net.XmlHttp.setFactory()
32 * with an unchanged signature.
33 * @param {function():!goog.net.XhrLike.OrNative} xhrFactory
34 * A function which returns a new XHR object.
35 * @param {function():!Object} optionsFactory A function which returns the
36 * options associated with xhr objects from this factory.
37 * @extends {goog.net.XmlHttpFactory}
38 * @constructor
39 * @final
40 */
41goog.net.WrapperXmlHttpFactory = function(xhrFactory, optionsFactory) {
42 goog.net.XmlHttpFactory.call(this);
43
44 /**
45 * XHR factory method.
46 * @type {function() : !goog.net.XhrLike.OrNative}
47 * @private
48 */
49 this.xhrFactory_ = xhrFactory;
50
51 /**
52 * Options factory method.
53 * @type {function() : !Object}
54 * @private
55 */
56 this.optionsFactory_ = optionsFactory;
57};
58goog.inherits(goog.net.WrapperXmlHttpFactory, goog.net.XmlHttpFactory);
59
60
61/** @override */
62goog.net.WrapperXmlHttpFactory.prototype.createInstance = function() {
63 return this.xhrFactory_();
64};
65
66
67/** @override */
68goog.net.WrapperXmlHttpFactory.prototype.getOptions = function() {
69 return this.optionsFactory_();
70};
71