--- /dev/null
+// Copyright 2010 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @fileoverview Implementation of XmlHttpFactory which allows construction from
+ * simple factory methods.
+ * @author dbk@google.com (David Barrett-Kahn)
+ */
+
+goog.provide('goog.net.WrapperXmlHttpFactory');
+
+/** @suppress {extraRequire} Typedef. */
+goog.require('goog.net.XhrLike');
+goog.require('goog.net.XmlHttpFactory');
+
+
+
+/**
+ * An xhr factory subclass which can be constructed using two factory methods.
+ * This exists partly to allow the preservation of goog.net.XmlHttp.setFactory()
+ * with an unchanged signature.
+ * @param {function():!goog.net.XhrLike.OrNative} xhrFactory
+ * A function which returns a new XHR object.
+ * @param {function():!Object} optionsFactory A function which returns the
+ * options associated with xhr objects from this factory.
+ * @extends {goog.net.XmlHttpFactory}
+ * @constructor
+ * @final
+ */
+goog.net.WrapperXmlHttpFactory = function(xhrFactory, optionsFactory) {
+ goog.net.XmlHttpFactory.call(this);
+
+ /**
+ * XHR factory method.
+ * @type {function() : !goog.net.XhrLike.OrNative}
+ * @private
+ */
+ this.xhrFactory_ = xhrFactory;
+
+ /**
+ * Options factory method.
+ * @type {function() : !Object}
+ * @private
+ */
+ this.optionsFactory_ = optionsFactory;
+};
+goog.inherits(goog.net.WrapperXmlHttpFactory, goog.net.XmlHttpFactory);
+
+
+/** @override */
+goog.net.WrapperXmlHttpFactory.prototype.createInstance = function() {
+ return this.xhrFactory_();
+};
+
+
+/** @override */
+goog.net.WrapperXmlHttpFactory.prototype.getOptions = function() {
+ return this.optionsFactory_();
+};
+