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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
/**
* @fileoverview Utilities for working with platforms.
*/
goog.provide('cvox.PlatformFilter');
goog.provide('cvox.PlatformUtil');
goog.require('cvox.ChromeVox');
/**
* @enum
*/
cvox.PlatformFilter = {
NONE: 0,
WINDOWS: 1,
MAC: 2,
LINUX: 4,
WML: 7,
CHROMEOS: 8,
ANDROID: 16
};
/**
*Checks whether the given filter matches the current platform. An undefined
* filter always matches the current platform.
* @param {undefined|cvox.PlatformFilter|number} filter The filter.
* @return {boolean} Whether the filter matches the current platform.
*/
cvox.PlatformUtil.matchesPlatform = function(filter) {
var uA = navigator.userAgent;
if (filter == undefined) {
return true;
} else if (uA.indexOf('Android') != -1) {
return (filter & cvox.PlatformFilter.ANDROID) != 0;
} else if (uA.indexOf('Win') != -1) {
return (filter & cvox.PlatformFilter.WINDOWS) != 0;
} else if (uA.indexOf('Mac') != -1) {
return (filter & cvox.PlatformFilter.MAC) != 0;
} else if (uA.indexOf('Linux') != -1) {
return (filter & cvox.PlatformFilter.LINUX) != 0;
} else if (uA.indexOf('CrOS') != -1) {
return (filter & cvox.PlatformFilter.CHROMEOS) != 0;
}
return false;
};
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