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// 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 Utilities for getting details about the user's platform.
*/
goog.provide('goog.userAgent.platform');
goog.require('goog.userAgent');
/**
* Detects the version of Windows or Mac OS that is running.
*
* @private
* @return {string} The platform version.
*/
goog.userAgent.platform.determineVersion_ = function() {
var version = '', re;
if (goog.userAgent.WINDOWS) {
re = /Windows NT ([0-9.]+)/;
var match = re.exec(goog.userAgent.getUserAgentString());
if (match) {
return match[1];
} else {
return '0';
}
} else if (goog.userAgent.MAC) {
re = /10[_.][0-9_.]+/;
var match = re.exec(goog.userAgent.getUserAgentString());
// Note: some old versions of Camino do not report an OSX version.
// Default to 10.
return match ? match[0].replace(/_/g, '.') : '10';
}
return '';
};
/**
* The version of the platform. We only determine the version for Windows and
* Mac, since it doesn't make much sense on Linux. For Windows, we only look at
* the NT version. Non-NT-based versions (e.g. 95, 98, etc.) are given version
* 0.0
* @type {string}
*/
goog.userAgent.platform.VERSION = goog.userAgent.platform.determineVersion_();
/**
* Whether the user agent platform version is higher or the same as the given
* version.
*
* @param {string|number} version The version to check.
* @return {boolean} Whether the user agent platform version is higher or the
* same as the given version.
*/
goog.userAgent.platform.isVersion = function(version) {
return goog.string.compareVersions(
goog.userAgent.platform.VERSION, version) >= 0;
};
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