Add third_party/google-input-tools: Take 2

third_party/google_input_tools/third_party/closure_library/closure/goog/labs/useragent/browser.js

Index: third_party/google_input_tools/third_party/closure_library/closure/goog/labs/useragent/browser.js
diff --git a/third_party/google_input_tools/third_party/closure_library/closure/goog/labs/useragent/browser.js b/third_party/google_input_tools/third_party/closure_library/closure/goog/labs/useragent/browser.js
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@@ -0,0 +1,271 @@
+// Copyright 2013 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 Closure user agent detection (Browser).
+ * @see <a href="http://www.useragentstring.com/">User agent strings</a>
+ * For more information on rendering engine, platform, or device see the other
+ * sub-namespaces in goog.labs.userAgent, goog.labs.userAgent.platform,
+ * goog.labs.userAgent.device respectively.)
+ *
+ */
+
+goog.provide('goog.labs.userAgent.browser');
+
+goog.require('goog.array');
+goog.require('goog.asserts');
+goog.require('goog.labs.userAgent.util');
+goog.require('goog.string');
+
+
+/**
+ * @return {boolean} Whether the user's browser is Opera.
+ * @private
+ */
+goog.labs.userAgent.browser.matchOpera_ = function() {
+  return goog.labs.userAgent.util.matchUserAgent('Opera') ||
+      goog.labs.userAgent.util.matchUserAgent('OPR');
+};
+
+
+/**
+ * @return {boolean} Whether the user's browser is IE.
+ * @private
+ */
+goog.labs.userAgent.browser.matchIE_ = function() {
+  return goog.labs.userAgent.util.matchUserAgent('Trident') ||
+      goog.labs.userAgent.util.matchUserAgent('MSIE');
+};
+
+
+/**
+ * @return {boolean} Whether the user's browser is Firefox.
+ * @private
+ */
+goog.labs.userAgent.browser.matchFirefox_ = function() {
+  return goog.labs.userAgent.util.matchUserAgent('Firefox');
+};
+
+
+/**
+ * @return {boolean} Whether the user's browser is Safari.
+ * @private
+ */
+goog.labs.userAgent.browser.matchSafari_ = function() {
+  return goog.labs.userAgent.util.matchUserAgent('Safari') &&
+      !goog.labs.userAgent.util.matchUserAgent('Chrome') &&
+      !goog.labs.userAgent.util.matchUserAgent('CriOS') &&
+      !goog.labs.userAgent.util.matchUserAgent('Android');
+};
+
+
+/**
+ * @return {boolean} Whether the user's browser is Chrome.
+ * @private
+ */
+goog.labs.userAgent.browser.matchChrome_ = function() {
+  return goog.labs.userAgent.util.matchUserAgent('Chrome') ||
+      goog.labs.userAgent.util.matchUserAgent('CriOS');
+};
+
+
+/**
+ * @return {boolean} Whether the user's browser is the Android browser.
+ * @private
+ */
+goog.labs.userAgent.browser.matchAndroidBrowser_ = function() {
+  return goog.labs.userAgent.util.matchUserAgent('Android') &&
+      !goog.labs.userAgent.util.matchUserAgent('Chrome') &&
+      !goog.labs.userAgent.util.matchUserAgent('CriOS');
+};
+
+
+/**
+ * @return {boolean} Whether the user's browser is Opera.
+ */
+goog.labs.userAgent.browser.isOpera = goog.labs.userAgent.browser.matchOpera_;
+
+
+/**
+ * @return {boolean} Whether the user's browser is IE.
+ */
+goog.labs.userAgent.browser.isIE = goog.labs.userAgent.browser.matchIE_;
+
+
+/**
+ * @return {boolean} Whether the user's browser is Firefox.
+ */
+goog.labs.userAgent.browser.isFirefox =
+    goog.labs.userAgent.browser.matchFirefox_;
+
+
+/**
+ * @return {boolean} Whether the user's browser is Safari.
+ */
+goog.labs.userAgent.browser.isSafari =
+    goog.labs.userAgent.browser.matchSafari_;
+
+
+/**
+ * @return {boolean} Whether the user's browser is Chrome.
+ */
+goog.labs.userAgent.browser.isChrome =
+    goog.labs.userAgent.browser.matchChrome_;
+
+
+/**
+ * @return {boolean} Whether the user's browser is the Android browser.
+ */
+goog.labs.userAgent.browser.isAndroidBrowser =
+    goog.labs.userAgent.browser.matchAndroidBrowser_;
+
+
+/**
+ * For more information, see:
+ * http://docs.aws.amazon.com/silk/latest/developerguide/user-agent.html
+ * @return {boolean} Whether the user's browser is Silk.
+ */
+goog.labs.userAgent.browser.isSilk = function() {
+  return goog.labs.userAgent.util.matchUserAgent('Silk');
+};
+
+
+/**
+ * @return {string} The browser version or empty string if version cannot be
+ *     determined. Note that for Internet Explorer, this returns the version of
+ *     the browser, not the version of the rendering engine. (IE 8 in
+ *     compatibility mode will return 8.0 rather than 7.0. To determine the
+ *     rendering engine version, look at document.documentMode instead. See
+ *     http://msdn.microsoft.com/en-us/library/cc196988(v=vs.85).aspx for more
+ *     details.)
+ */
+goog.labs.userAgent.browser.getVersion = function() {
+  var userAgentString = goog.labs.userAgent.util.getUserAgent();
+  // Special case IE since IE's version is inside the parenthesis and
+  // without the '/'.
+  if (goog.labs.userAgent.browser.isIE()) {
+    return goog.labs.userAgent.browser.getIEVersion_(userAgentString);
+  }
+
+  if (goog.labs.userAgent.browser.isOpera()) {
+    return goog.labs.userAgent.browser.getOperaVersion_(userAgentString);
+  }
+
+  var versionTuples =
+      goog.labs.userAgent.util.extractVersionTuples(userAgentString);
+  return goog.labs.userAgent.browser.getVersionFromTuples_(versionTuples);
+};
+
+
+/**
+ * @param {string|number} version The version to check.
+ * @return {boolean} Whether the browser version is higher or the same as the
+ *     given version.
+ */
+goog.labs.userAgent.browser.isVersionOrHigher = function(version) {
+  return goog.string.compareVersions(goog.labs.userAgent.browser.getVersion(),
+                                     version) >= 0;
+};
+
+
+/**
+ * Determines IE version. More information:
+ * http://msdn.microsoft.com/en-us/library/ie/bg182625(v=vs.85).aspx#uaString
+ * http://msdn.microsoft.com/en-us/library/hh869301(v=vs.85).aspx
+ * http://blogs.msdn.com/b/ie/archive/2010/03/23/introducing-ie9-s-user-agent-string.aspx
+ * http://blogs.msdn.com/b/ie/archive/2009/01/09/the-internet-explorer-8-user-agent-string-updated-edition.aspx
+ *
+ * @param {string} userAgent the User-Agent.
+ * @return {string}
+ * @private
+ */
+goog.labs.userAgent.browser.getIEVersion_ = function(userAgent) {
+  // IE11 may identify itself as MSIE 9.0 or MSIE 10.0 due to an IE 11 upgrade
+  // bug. Example UA:
+  // Mozilla/5.0 (MSIE 9.0; Windows NT 6.1; WOW64; Trident/7.0; rv:11.0)
+  // like Gecko.
+  // See http://www.whatismybrowser.com/developers/unknown-user-agent-fragments.
+  var rv = /rv: *([\d\.]*)/.exec(userAgent);
+  if (rv && rv[1]) {
+    return rv[1];
+  }
+
+  var version = '';
+  var msie = /MSIE +([\d\.]+)/.exec(userAgent);
+  if (msie && msie[1]) {
+    // IE in compatibility mode usually identifies itself as MSIE 7.0; in this
+    // case, use the Trident version to determine the version of IE. For more
+    // details, see the links above.
+    var tridentVersion = /Trident\/(\d.\d)/.exec(userAgent);
+    if (msie[1] == '7.0') {
+      if (tridentVersion && tridentVersion[1]) {
+        switch (tridentVersion[1]) {
+          case '4.0':
+            version = '8.0';
+            break;
+          case '5.0':
+            version = '9.0';
+            break;
+          case '6.0':
+            version = '10.0';
+            break;
+          case '7.0':
+            version = '11.0';
+            break;
+        }
+      } else {
+        version = '7.0';
+      }
+    } else {
+      version = msie[1];
+    }
+  }
+  return version;
+};
+
+
+/**
+ * Determines Opera version. More information:
+ * http://my.opera.com/ODIN/blog/2013/07/15/opera-user-agent-strings-opera-15-and-beyond
+ *
+ * @param {string} userAgent The User-Agent.
+ * @return {string}
+ * @private
+ */
+goog.labs.userAgent.browser.getOperaVersion_ = function(userAgent) {
+  var versionTuples =
+      goog.labs.userAgent.util.extractVersionTuples(userAgent);
+  var lastTuple = goog.array.peek(versionTuples);
+  if (lastTuple[0] == 'OPR' && lastTuple[1]) {
+    return lastTuple[1];
+  }
+
+  return goog.labs.userAgent.browser.getVersionFromTuples_(versionTuples);
+};
+
+
+/**
+ * Nearly all User-Agents start with Mozilla/N.0. This looks at the second tuple
+ * for the actual browser version number.
+ * @param {!Array.<!Array.<string>>} versionTuples
+ * @return {string} The version or empty string if it cannot be determined.
+ * @private
+ */
+goog.labs.userAgent.browser.getVersionFromTuples_ = function(versionTuples) {
+  // versionTuples[2] (The first X/Y tuple after the parenthesis) contains the
+  // browser version number.
+  goog.asserts.assert(versionTuples.length > 2,
+      'Couldn\'t extract version tuple from user agent string');
+  return versionTuples[2] && versionTuples[2][1] ? versionTuples[2][1] : '';
+};