Working production build in docs subdirectory.

resources/public/target/cljsbuild-compiler-1/goog/net/xmlhttp.js

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+// Copyright 2006 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 Low level handling of XMLHttpRequest.
+ * @author arv@google.com (Erik Arvidsson)
+ * @author dbk@google.com (David Barrett-Kahn)
+ */
+
+goog.provide('goog.net.DefaultXmlHttpFactory');
+goog.provide('goog.net.XmlHttp');
+goog.provide('goog.net.XmlHttp.OptionType');
+goog.provide('goog.net.XmlHttp.ReadyState');
+goog.provide('goog.net.XmlHttpDefines');
+
+goog.require('goog.asserts');
+goog.require('goog.net.WrapperXmlHttpFactory');
+goog.require('goog.net.XmlHttpFactory');
+
+
+/**
+ * Static class for creating XMLHttpRequest objects.
+ * @return {!goog.net.XhrLike.OrNative} A new XMLHttpRequest object.
+ */
+goog.net.XmlHttp = function() {
+  return goog.net.XmlHttp.factory_.createInstance();
+};
+
+
+/**
+ * @define {boolean} Whether to assume XMLHttpRequest exists. Setting this to
+ *     true bypasses the ActiveX probing code.
+ * NOTE(ruilopes): Due to the way JSCompiler works, this define *will not* strip
+ * out the ActiveX probing code from binaries.  To achieve this, use
+ * {@code goog.net.XmlHttpDefines.ASSUME_NATIVE_XHR} instead.
+ * TODO(ruilopes): Collapse both defines.
+ */
+goog.define('goog.net.XmlHttp.ASSUME_NATIVE_XHR', false);
+
+
+/** @const */
+goog.net.XmlHttpDefines = {};
+
+
+/**
+ * @define {boolean} Whether to assume XMLHttpRequest exists. Setting this to
+ *     true eliminates the ActiveX probing code.
+ */
+goog.define('goog.net.XmlHttpDefines.ASSUME_NATIVE_XHR', false);
+
+
+/**
+ * Gets the options to use with the XMLHttpRequest objects obtained using
+ * the static methods.
+ * @return {Object} The options.
+ */
+goog.net.XmlHttp.getOptions = function() {
+  return goog.net.XmlHttp.factory_.getOptions();
+};
+
+
+/**
+ * Type of options that an XmlHttp object can have.
+ * @enum {number}
+ */
+goog.net.XmlHttp.OptionType = {
+  /**
+   * Whether a goog.nullFunction should be used to clear the onreadystatechange
+   * handler instead of null.
+   */
+  USE_NULL_FUNCTION: 0,
+
+  /**
+   * NOTE(user): In IE if send() errors on a *local* request the readystate
+   * is still changed to COMPLETE.  We need to ignore it and allow the
+   * try/catch around send() to pick up the error.
+   */
+  LOCAL_REQUEST_ERROR: 1
+};
+
+
+/**
+ * Status constants for XMLHTTP, matches:
+ * https://msdn.microsoft.com/en-us/library/ms534361(v=vs.85).aspx
+ * @enum {number}
+ */
+goog.net.XmlHttp.ReadyState = {
+  /**
+   * Constant for when xmlhttprequest.readyState is uninitialized
+   */
+  UNINITIALIZED: 0,
+
+  /**
+   * Constant for when xmlhttprequest.readyState is loading.
+   */
+  LOADING: 1,
+
+  /**
+   * Constant for when xmlhttprequest.readyState is loaded.
+   */
+  LOADED: 2,
+
+  /**
+   * Constant for when xmlhttprequest.readyState is in an interactive state.
+   */
+  INTERACTIVE: 3,
+
+  /**
+   * Constant for when xmlhttprequest.readyState is completed
+   */
+  COMPLETE: 4
+};
+
+
+/**
+ * The global factory instance for creating XMLHttpRequest objects.
+ * @type {goog.net.XmlHttpFactory}
+ * @private
+ */
+goog.net.XmlHttp.factory_;
+
+
+/**
+ * Sets the factories for creating XMLHttpRequest objects and their options.
+ * @param {Function} factory The factory for XMLHttpRequest objects.
+ * @param {Function} optionsFactory The factory for options.
+ * @deprecated Use setGlobalFactory instead.
+ */
+goog.net.XmlHttp.setFactory = function(factory, optionsFactory) {
+  goog.net.XmlHttp.setGlobalFactory(
+      new goog.net.WrapperXmlHttpFactory(
+          goog.asserts.assert(factory), goog.asserts.assert(optionsFactory)));
+};
+
+
+/**
+ * Sets the global factory object.
+ * @param {!goog.net.XmlHttpFactory} factory New global factory object.
+ */
+goog.net.XmlHttp.setGlobalFactory = function(factory) {
+  goog.net.XmlHttp.factory_ = factory;
+};
+
+
+
+/**
+ * Default factory to use when creating xhr objects.  You probably shouldn't be
+ * instantiating this directly, but rather using it via goog.net.XmlHttp.
+ * @extends {goog.net.XmlHttpFactory}
+ * @constructor
+ */
+goog.net.DefaultXmlHttpFactory = function() {
+  goog.net.XmlHttpFactory.call(this);
+};
+goog.inherits(goog.net.DefaultXmlHttpFactory, goog.net.XmlHttpFactory);
+
+
+/** @override */
+goog.net.DefaultXmlHttpFactory.prototype.createInstance = function() {
+  var progId = this.getProgId_();
+  if (progId) {
+    return new ActiveXObject(progId);
+  } else {
+    return new XMLHttpRequest();
+  }
+};
+
+
+/** @override */
+goog.net.DefaultXmlHttpFactory.prototype.internalGetOptions = function() {
+  var progId = this.getProgId_();
+  var options = {};
+  if (progId) {
+    options[goog.net.XmlHttp.OptionType.USE_NULL_FUNCTION] = true;
+    options[goog.net.XmlHttp.OptionType.LOCAL_REQUEST_ERROR] = true;
+  }
+  return options;
+};
+
+
+/**
+ * The ActiveX PROG ID string to use to create xhr's in IE. Lazily initialized.
+ * @type {string|undefined}
+ * @private
+ */
+goog.net.DefaultXmlHttpFactory.prototype.ieProgId_;
+
+
+/**
+ * Initialize the private state used by other functions.
+ * @return {string} The ActiveX PROG ID string to use to create xhr's in IE.
+ * @private
+ */
+goog.net.DefaultXmlHttpFactory.prototype.getProgId_ = function() {
+  if (goog.net.XmlHttp.ASSUME_NATIVE_XHR ||
+      goog.net.XmlHttpDefines.ASSUME_NATIVE_XHR) {
+    return '';
+  }
+
+  // The following blog post describes what PROG IDs to use to create the
+  // XMLHTTP object in Internet Explorer:
+  // http://blogs.msdn.com/xmlteam/archive/2006/10/23/using-the-right-version-of-msxml-in-internet-explorer.aspx
+  // However we do not (yet) fully trust that this will be OK for old versions
+  // of IE on Win9x so we therefore keep the last 2.
+  if (!this.ieProgId_ && typeof XMLHttpRequest == 'undefined' &&
+      typeof ActiveXObject != 'undefined') {
+    // Candidate Active X types.
+    var ACTIVE_X_IDENTS = [
+      'MSXML2.XMLHTTP.6.0', 'MSXML2.XMLHTTP.3.0', 'MSXML2.XMLHTTP',
+      'Microsoft.XMLHTTP'
+    ];
+    for (var i = 0; i < ACTIVE_X_IDENTS.length; i++) {
+      var candidate = ACTIVE_X_IDENTS[i];
+
+      try {
+        new ActiveXObject(candidate);
+        // NOTE(user): cannot assign progid and return candidate in one line
+        // because JSCompiler complaings: BUG 658126
+        this.ieProgId_ = candidate;
+        return candidate;
+      } catch (e) {
+        // do nothing; try next choice
+      }
+    }
+
+    // couldn't find any matches
+    throw Error(
+        'Could not create ActiveXObject. ActiveX might be disabled,' +
+        ' or MSXML might not be installed');
+  }
+
+  return /** @type {string} */ (this.ieProgId_);
+};
+
+
+// Set the global factory to an instance of the default factory.
+goog.net.XmlHttp.setGlobalFactory(new goog.net.DefaultXmlHttpFactory());