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
23goog.require('goog.net.XmlHttpFactory');
24
25
26
27/**
28 * An xhr factory subclass which can be constructed using two factory methods.
29 * This exists partly to allow the preservation of goog.net.XmlHttp.setFactory()
30 * with an unchanged signature.
31 * @param {function() : !(XMLHttpRequest|GearsHttpRequest)} xhrFactory A
32 * function which returns a new XHR object.
33 * @param {function() : !Object} optionsFactory A function which returns the
34 * options associated with xhr objects from this factory.
35 * @extends {goog.net.XmlHttpFactory}
36 * @constructor
37 */
38goog.net.WrapperXmlHttpFactory = function(xhrFactory, optionsFactory) {
39 goog.net.XmlHttpFactory.call(this);
40
41 /**
42 * XHR factory method.
43 * @type {function() : !(XMLHttpRequest|GearsHttpRequest)}
44 * @private
45 */
46 this.xhrFactory_ = xhrFactory;
47
48 /**
49 * Options factory method.
50 * @type {function() : !Object}
51 * @private
52 */
53 this.optionsFactory_ = optionsFactory;
54};
55goog.inherits(goog.net.WrapperXmlHttpFactory, goog.net.XmlHttpFactory);
56
57
58/** @override */
59goog.net.WrapperXmlHttpFactory.prototype.createInstance = function() {
60 return this.xhrFactory_();
61};
62
63
64/** @override */
65goog.net.WrapperXmlHttpFactory.prototype.getOptions = function() {
66 return this.optionsFactory_();
67};
68