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platform.js
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/*!
* Platform.js
* Copyright 2014-2020 Benjamin Tan
* Copyright 2011-2013 John-David Dalton
* Available under MIT license
*/
(function () {
"use strict";
/** Used to determine if values are of the language type `Object`. */
var objectTypes = {
function: true,
object: true,
};
/** Used as a reference to the global object. */
var root = (objectTypes[typeof window] && window) || this;
/** Backup possible global object. */
var oldRoot = root;
/** Detect free variable `exports`. */
var freeExports = objectTypes[typeof exports] && exports;
/** Detect free variable `module`. */
var freeModule =
objectTypes[typeof module] && module && !module.nodeType && module;
/** Detect free variable `global` from Node.js or Browserified code and use it as `root`. */
var freeGlobal =
freeExports && freeModule && typeof global == "object" && global;
if (
freeGlobal &&
(freeGlobal.global === freeGlobal ||
freeGlobal.window === freeGlobal ||
freeGlobal.self === freeGlobal)
) {
root = freeGlobal;
}
/**
* Used as the maximum length of an array-like object.
* See the [ES6 spec](http://people.mozilla.org/~jorendorff/es6-draft.html#sec-tolength)
* for more details.
*/
var maxSafeInteger = Math.pow(2, 53) - 1;
/** Regular expression to detect Opera. */
var reOpera = /\bOpera/;
/** Possible global object. */
var thisBinding = this;
/** Used for native method references. */
var objectProto = Object.prototype;
/** Used to check for own properties of an object. */
var hasOwnProperty = objectProto.hasOwnProperty;
/** Used to resolve the internal `[[Class]]` of values. */
var toString = objectProto.toString;
/*--------------------------------------------------------------------------*/
/**
* Capitalizes a string value.
*
* @private
* @param {string} string The string to capitalize.
* @returns {string} The capitalized string.
*/
function capitalize(string) {
string = String(string);
return string.charAt(0).toUpperCase() + string.slice(1);
}
/**
* A utility function to clean up the OS name.
*
* @private
* @param {string} os The OS name to clean up.
* @param {string} [pattern] A `RegExp` pattern matching the OS name.
* @param {string} [label] A label for the OS.
*/
function cleanupOS(os, pattern, label) {
// Platform tokens are defined at:
// http://msdn.microsoft.com/en-us/library/ms537503(VS.85).aspx
// http://web.archive.org/web/20081122053950/http://msdn.microsoft.com/en-us/library/ms537503(VS.85).aspx
var data = {
"10.0": "10",
6.4: "10 Technical Preview",
6.3: "8.1",
6.2: "8",
6.1: "Server 2008 R2 / 7",
"6.0": "Server 2008 / Vista",
5.2: "Server 2003 / XP 64-bit",
5.1: "XP",
5.01: "2000 SP1",
"5.0": "2000",
"4.0": "NT",
"4.90": "ME",
};
// Detect Windows version from platform tokens.
if (
pattern &&
label &&
/^Win/i.test(os) &&
!/^Windows Phone /i.test(os) &&
(data = data[/[\d.]+$/.exec(os)])
) {
os = "Windows " + data;
}
// Correct character case and cleanup string.
os = String(os);
if (pattern && label) {
os = os.replace(RegExp(pattern, "i"), label);
}
os = format(
os
.replace(/ ce$/i, " CE")
.replace(/\bhpw/i, "web")
.replace(/\bMacintosh\b/, "Mac OS")
.replace(/_PowerPC\b/i, " OS")
.replace(/\b(OS X) [^ \d]+/i, "$1")
.replace(/\bMac (OS X)\b/, "$1")
.replace(/\/(\d)/, " $1")
.replace(/_/g, ".")
.replace(/(?: BePC|[ .]*fc[ \d.]+)$/i, "")
.replace(/\bx86\.64\b/gi, "x86_64")
.replace(/\b(Windows Phone) OS\b/, "$1")
.replace(/\b(Chrome OS \w+) [\d.]+\b/, "$1")
.split(" on ")[0]
);
return os;
}
/**
* An iteration utility for arrays and objects.
*
* @private
* @param {Array|Object} object The object to iterate over.
* @param {Function} callback The function called per iteration.
*/
function each(object, callback) {
var index = -1,
length = object ? object.length : 0;
if (typeof length == "number" && length > -1 && length <= maxSafeInteger) {
while (++index < length) {
callback(object[index], index, object);
}
} else {
forOwn(object, callback);
}
}
/**
* Trim and conditionally capitalize string values.
*
* @private
* @param {string} string The string to format.
* @returns {string} The formatted string.
*/
function format(string) {
string = trim(string);
return /^(?:webOS|i(?:OS|P))/.test(string) ? string : capitalize(string);
}
/**
* Iterates over an object's own properties, executing the `callback` for each.
*
* @private
* @param {Object} object The object to iterate over.
* @param {Function} callback The function executed per own property.
*/
function forOwn(object, callback) {
for (var key in object) {
if (hasOwnProperty.call(object, key)) {
callback(object[key], key, object);
}
}
}
/**
* Gets the internal `[[Class]]` of a value.
*
* @private
* @param {*} value The value.
* @returns {string} The `[[Class]]`.
*/
function getClassOf(value) {
return value == null
? capitalize(value)
: toString.call(value).slice(8, -1);
}
/**
* Host objects can return type values that are different from their actual
* data type. The objects we are concerned with usually return non-primitive
* types of "object", "function", or "unknown".
*
* @private
* @param {*} object The owner of the property.
* @param {string} property The property to check.
* @returns {boolean} Returns `true` if the property value is a non-primitive, else `false`.
*/
function isHostType(object, property) {
var type = object != null ? typeof object[property] : "number";
return (
!/^(?:boolean|number|string|undefined)$/.test(type) &&
(type == "object" ? !!object[property] : true)
);
}
/**
* Prepares a string for use in a `RegExp` by making hyphens and spaces optional.
*
* @private
* @param {string} string The string to qualify.
* @returns {string} The qualified string.
*/
function qualify(string) {
return String(string).replace(/([ -])(?!$)/g, "$1?");
}
/**
* A bare-bones `Array#reduce` like utility function.
*
* @private
* @param {Array} array The array to iterate over.
* @param {Function} callback The function called per iteration.
* @returns {*} The accumulated result.
*/
function reduce(array, callback) {
var accumulator = null;
each(array, function (value, index) {
accumulator = callback(accumulator, value, index, array);
});
return accumulator;
}
/**
* Removes leading and trailing whitespace from a string.
*
* @private
* @param {string} string The string to trim.
* @returns {string} The trimmed string.
*/
function trim(string) {
return String(string).replace(/^ +| +$/g, "");
}
/*--------------------------------------------------------------------------*/
/**
* Creates a new platform object.
*
* @memberOf platform
* @param {Object|string} [ua=navigator.userAgent] The user agent string or
* context object.
* @returns {Object} A platform object.
*/
function parse(ua) {
/** The environment context object. */
var context = root;
/** Used to flag when a custom context is provided. */
var isCustomContext =
ua && typeof ua == "object" && getClassOf(ua) != "String";
// Juggle arguments.
if (isCustomContext) {
context = ua;
ua = null;
}
/** Browser navigator object. */
var nav = context.navigator || {};
/** Browser user agent string. */
var userAgent = nav.userAgent || "";
ua || (ua = userAgent);
/** Used to flag when `thisBinding` is the [ModuleScope]. */
var isModuleScope = isCustomContext || thisBinding == oldRoot;
/** Used to detect if browser is like Chrome. */
var likeChrome = isCustomContext
? !!nav.likeChrome
: /\bChrome\b/.test(ua) && !/internal|\n/i.test(toString.toString());
/** Internal `[[Class]]` value shortcuts. */
var objectClass = "Object",
airRuntimeClass = isCustomContext
? objectClass
: "ScriptBridgingProxyObject",
enviroClass = isCustomContext ? objectClass : "Environment",
javaClass =
isCustomContext && context.java
? "JavaPackage"
: getClassOf(context.java),
phantomClass = isCustomContext ? objectClass : "RuntimeObject";
/** Detect Java environments. */
var java = /\bJava/.test(javaClass) && context.java;
/** Detect Rhino. */
var rhino = java && getClassOf(context.environment) == enviroClass;
/** A character to represent alpha. */
var alpha = java ? "a" : "\u03b1";
/** A character to represent beta. */
var beta = java ? "b" : "\u03b2";
/** Browser document object. */
var doc = context.document || {};
/**
* Detect Opera browser (Presto-based).
* http://www.howtocreate.co.uk/operaStuff/operaObject.html
* http://dev.opera.com/articles/view/opera-mini-web-content-authoring-guidelines/#operamini
*/
var opera = context.operamini || context.opera;
/** Opera `[[Class]]`. */
var operaClass = reOpera.test(
(operaClass =
isCustomContext && opera ? opera["[[Class]]"] : getClassOf(opera))
)
? operaClass
: (opera = null);
/*------------------------------------------------------------------------*/
/** Temporary variable used over the script's lifetime. */
var data;
/** The CPU architecture. */
var arch = ua;
/** Platform description array. */
var description = [];
/** Platform alpha/beta indicator. */
var prerelease = null;
/** A flag to indicate that environment features should be used to resolve the platform. */
var useFeatures = ua == userAgent;
/** The browser/environment version. */
var version =
useFeatures &&
opera &&
typeof opera.version == "function" &&
opera.version();
/** A flag to indicate if the OS ends with "/ Version" */
var isSpecialCasedOS;
/* Detectable layout engines (order is important). */
var layout = getLayout([
{ label: "EdgeHTML", pattern: "Edge" },
"Trident",
{ label: "WebKit", pattern: "AppleWebKit" },
"iCab",
"Presto",
"NetFront",
"Tasman",
"KHTML",
"Gecko",
]);
/* Detectable browser names (order is important). */
var name = getName([
"Adobe AIR",
"Arora",
"Avant Browser",
"Breach",
"Camino",
"Electron",
"Epiphany",
"Fennec",
"Flock",
"Galeon",
"GreenBrowser",
"iCab",
"Iceweasel",
"K-Meleon",
"Konqueror",
"Lunascape",
"Maxthon",
{ label: "Microsoft Edge", pattern: "(?:Edge|Edg|EdgA|EdgiOS)" },
"Midori",
"Nook Browser",
"PaleMoon",
"PhantomJS",
"Raven",
"Rekonq",
"RockMelt",
{ label: "Samsung Internet", pattern: "SamsungBrowser" },
"SeaMonkey",
{ label: "Silk", pattern: "(?:Cloud9|Silk-Accelerated)" },
"Sleipnir",
"SlimBrowser",
{ label: "SRWare Iron", pattern: "Iron" },
"Sunrise",
"Swiftfox",
"Vivaldi",
"Waterfox",
"WebPositive",
{ label: "Yandex Browser", pattern: "YaBrowser" },
{ label: "UC Browser", pattern: "UCBrowser" },
"Opera Mini",
{ label: "Opera Mini", pattern: "OPiOS" },
"Opera",
{ label: "Opera", pattern: "OPR" },
"Chromium",
"Chrome",
{ label: "Chrome", pattern: "(?:HeadlessChrome)" },
{ label: "Chrome Mobile", pattern: "(?:CriOS|CrMo)" },
{ label: "Firefox", pattern: "(?:Firefox|Minefield)" },
{ label: "Firefox for iOS", pattern: "FxiOS" },
{ label: "IE", pattern: "IEMobile" },
{ label: "IE", pattern: "MSIE" },
"Safari",
]);
/* Detectable products (order is important). */
var product = getProduct([
{ label: "BlackBerry", pattern: "BB10" },
"BlackBerry",
{ label: "Galaxy S", pattern: "GT-I9000" },
{ label: "Galaxy S2", pattern: "GT-I9100" },
{ label: "Galaxy S3", pattern: "GT-I9300" },
{ label: "Galaxy S4", pattern: "GT-I9500" },
{ label: "Galaxy S5", pattern: "SM-G900" },
{ label: "Galaxy S6", pattern: "SM-G920" },
{ label: "Galaxy S6 Edge", pattern: "SM-G925" },
{ label: "Galaxy S7", pattern: "SM-G930" },
{ label: "Galaxy S7 Edge", pattern: "SM-G935" },
"Google TV",
"Lumia",
"iPad",
"iPod",
"iPhone",
"Kindle",
{ label: "Kindle Fire", pattern: "(?:Cloud9|Silk-Accelerated)" },
"Nexus",
"Nook",
"PlayBook",
"PlayStation Vita",
"PlayStation",
"TouchPad",
"Transformer",
{ label: "Wii U", pattern: "WiiU" },
"Wii",
"Xbox One",
{ label: "Xbox 360", pattern: "Xbox" },
"Xoom",
]);
/* Detectable manufacturers. */
var manufacturer = getManufacturer({
Apple: { iPad: 1, iPhone: 1, iPod: 1 },
Alcatel: {},
Archos: {},
Amazon: { Kindle: 1, "Kindle Fire": 1 },
Asus: { Transformer: 1 },
"Barnes & Noble": { Nook: 1 },
BlackBerry: { PlayBook: 1 },
Google: { "Google TV": 1, Nexus: 1 },
HP: { TouchPad: 1 },
HTC: {},
Huawei: {},
Lenovo: {},
LG: {},
Microsoft: { Xbox: 1, "Xbox One": 1 },
Motorola: { Xoom: 1 },
Nintendo: { "Wii U": 1, Wii: 1 },
Nokia: { Lumia: 1 },
Oppo: {},
Samsung: {
"Galaxy S": 1,
"Galaxy S2": 1,
"Galaxy S3": 1,
"Galaxy S4": 1,
},
Sony: { PlayStation: 1, "PlayStation Vita": 1 },
Xiaomi: { Mi: 1, Redmi: 1 },
});
/* Detectable operating systems (order is important). */
var os = getOS([
"Windows Phone",
"KaiOS",
"Android",
"CentOS",
{ label: "Chrome OS", pattern: "CrOS" },
"Debian",
{ label: "DragonFly BSD", pattern: "DragonFly" },
"Fedora",
"FreeBSD",
"Gentoo",
"Haiku",
"Kubuntu",
"Linux Mint",
"OpenBSD",
"Red Hat",
"SuSE",
"Ubuntu",
"Xubuntu",
"Cygwin",
"Symbian OS",
"hpwOS",
"webOS ",
"webOS",
"Tablet OS",
"Tizen",
"Linux",
"Mac OS X",
"Macintosh",
"Mac",
"Windows 98;",
"Windows ",
]);
/*------------------------------------------------------------------------*/
/**
* Picks the layout engine from an array of guesses.
*
* @private
* @param {Array} guesses An array of guesses.
* @returns {null|string} The detected layout engine.
*/
function getLayout(guesses) {
return reduce(guesses, function (result, guess) {
return (
result ||
(RegExp("\\b" + (guess.pattern || qualify(guess)) + "\\b", "i").exec(
ua
) &&
(guess.label || guess))
);
});
}
/**
* Picks the manufacturer from an array of guesses.
*
* @private
* @param {Array} guesses An object of guesses.
* @returns {null|string} The detected manufacturer.
*/
function getManufacturer(guesses) {
return reduce(guesses, function (result, value, key) {
// Lookup the manufacturer by product or scan the UA for the manufacturer.
return (
result ||
((value[product] ||
value[/^[a-z]+(?: +[a-z]+\b)*/i.exec(product)] ||
RegExp("\\b" + qualify(key) + "(?:\\b|\\w*\\d)", "i").exec(ua)) &&
key)
);
});
}
/**
* Picks the browser name from an array of guesses.
*
* @private
* @param {Array} guesses An array of guesses.
* @returns {null|string} The detected browser name.
*/
function getName(guesses) {
return reduce(guesses, function (result, guess) {
return (
result ||
(RegExp("\\b" + (guess.pattern || qualify(guess)) + "\\b", "i").exec(
ua
) &&
(guess.label || guess))
);
});
}
/**
* Picks the OS name from an array of guesses.
*
* @private
* @param {Array} guesses An array of guesses.
* @returns {null|string} The detected OS name.
*/
function getOS(guesses) {
return reduce(guesses, function (result, guess) {
var pattern = guess.pattern || qualify(guess);
if (
!result &&
(result = RegExp("\\b" + pattern + "(?:/[\\d.]+|[ \\w.]*)", "i").exec(
ua
))
) {
result = cleanupOS(result, pattern, guess.label || guess);
}
return result;
});
}
/**
* Picks the product name from an array of guesses.
*
* @private
* @param {Array} guesses An array of guesses.
* @returns {null|string} The detected product name.
*/
function getProduct(guesses) {
return reduce(guesses, function (result, guess) {
var pattern = guess.pattern || qualify(guess);
if (
!result &&
(result =
RegExp("\\b" + pattern + " *\\d+[.\\w_]*", "i").exec(ua) ||
RegExp("\\b" + pattern + " *\\w+-[\\w]*", "i").exec(ua) ||
RegExp(
"\\b" + pattern + "(?:; *(?:[a-z]+[_-])?[a-z]+\\d+|[^ ();-]*)",
"i"
).exec(ua))
) {
// Split by forward slash and append product version if needed.
if (
(result = String(
guess.label && !RegExp(pattern, "i").test(guess.label)
? guess.label
: result
).split("/"))[1] &&
!/[\d.]+/.test(result[0])
) {
result[0] += " " + result[1];
}
// Correct character case and cleanup string.
guess = guess.label || guess;
result = format(
result[0]
.replace(RegExp(pattern, "i"), guess)
.replace(RegExp("; *(?:" + guess + "[_-])?", "i"), " ")
.replace(RegExp("(" + guess + ")[-_.]?(\\w)", "i"), "$1 $2")
);
}
return result;
});
}
/**
* Resolves the version using an array of UA patterns.
*
* @private
* @param {Array} patterns An array of UA patterns.
* @returns {null|string} The detected version.
*/
function getVersion(patterns) {
return reduce(patterns, function (result, pattern) {
return (
result ||
(RegExp(
pattern +
"(?:-[\\d.]+/|(?: for [\\w-]+)?[ /-])([\\d.]+[^ ();/_-]*)",
"i"
).exec(ua) || 0)[1] ||
null
);
});
}
/**
* Returns `platform.description` when the platform object is coerced to a string.
*
* @name toString
* @memberOf platform
* @returns {string} Returns `platform.description` if available, else an empty string.
*/
function toStringPlatform() {
return this.description || "";
}
/*------------------------------------------------------------------------*/
// Convert layout to an array so we can add extra details.
layout && (layout = [layout]);
// Detect Android products.
// Browsers on Android devices typically provide their product IDS after "Android;"
// up to "Build" or ") AppleWebKit".
// Example:
// "Mozilla/5.0 (Linux; Android 8.1.0; Moto G (5) Plus) AppleWebKit/537.36
// (KHTML, like Gecko) Chrome/70.0.3538.80 Mobile Safari/537.36"
if (
/\bAndroid\b/.test(os) &&
!product &&
(data = /\bAndroid[^;]*;(.*?)(?:Build|\) AppleWebKit)\b/i.exec(ua))
) {
product =
trim(data[1])
// Replace any language codes (eg. "en-US").
.replace(/^[a-z]{2}-[a-z]{2};\s*/i, "") || null;
}
// Detect product names that contain their manufacturer's name.
if (manufacturer && !product) {
product = getProduct([manufacturer]);
} else if (manufacturer && product) {
product = product
.replace(
RegExp("^(" + qualify(manufacturer) + ")[-_.\\s]", "i"),
manufacturer + " "
)
.replace(
RegExp("^(" + qualify(manufacturer) + ")[-_.]?(\\w)", "i"),
manufacturer + " $2"
);
}
// Clean up Google TV.
if ((data = /\bGoogle TV\b/.exec(product))) {
product = data[0];
}
// Detect simulators.
if (/\bSimulator\b/i.test(ua)) {
product = (product ? product + " " : "") + "Simulator";
}
// Detect Opera Mini 8+ running in Turbo/Uncompressed mode on iOS.
if (name == "Opera Mini" && /\bOPiOS\b/.test(ua)) {
description.push("running in Turbo/Uncompressed mode");
}
// Detect IE Mobile 11.
if (name == "IE" && /\blike iPhone OS\b/.test(ua)) {
data = parse(ua.replace(/like iPhone OS/, ""));
manufacturer = data.manufacturer;
product = data.product;
}
// Detect iOS.
else if (/^iP/.test(product)) {
name || (name = "Safari");
os =
"iOS" +
((data = / OS ([\d_]+)/i.exec(ua))
? " " + data[1].replace(/_/g, ".")
: "");
}
// Detect Kubuntu.
else if (name == "Konqueror" && /^Linux\b/i.test(os)) {
os = "Kubuntu";
}
// Detect Android browsers.
else if (
(manufacturer &&
manufacturer != "Google" &&
((/Chrome/.test(name) && !/\bMobile Safari\b/i.test(ua)) ||
/\bVita\b/.test(product))) ||
(/\bAndroid\b/.test(os) &&
/^Chrome/.test(name) &&
/\bVersion\//i.test(ua))
) {
name = "Android Browser";
os = /\bAndroid\b/.test(os) ? os : "Android";
}
// Detect Silk desktop/accelerated modes.
else if (name == "Silk") {
if (!/\bMobi/i.test(ua)) {
os = "Android";
description.unshift("desktop mode");
}
if (/Accelerated *= *true/i.test(ua)) {
description.unshift("accelerated");
}
}
// Detect UC Browser speed mode.
else if (name == "UC Browser" && /\bUCWEB\b/.test(ua)) {
description.push("speed mode");
}
// Detect PaleMoon identifying as Firefox.
else if (name == "PaleMoon" && (data = /\bFirefox\/([\d.]+)\b/.exec(ua))) {
description.push("identifying as Firefox " + data[1]);
}
// Detect Firefox OS and products running Firefox.
else if (name == "Firefox" && (data = /\b(Mobile|Tablet|TV)\b/i.exec(ua))) {
os || (os = "Firefox OS");
product || (product = data[1]);
}
// Detect false positives for Firefox/Safari.
else if (
!name ||
(data = !/\bMinefield\b/i.test(ua) && /\b(?:Firefox|Safari)\b/.exec(name))
) {
// Escape the `/` for Firefox 1.
if (
name &&
!product &&
/[\/,]|^[^(]+?\)/.test(ua.slice(ua.indexOf(data + "/") + 8))
) {
// Clear name of false positives.
name = null;
}
// Reassign a generic name.
if (
(data = product || manufacturer || os) &&
(product ||
manufacturer ||
/\b(?:Android|Symbian OS|Tablet OS|webOS)\b/.test(os))
) {
name =
/[a-z]+(?: Hat)?/i.exec(/\bAndroid\b/.test(os) ? os : data) +
" Browser";
}
}
// Add Chrome version to description for Electron.
else if (
name == "Electron" &&
(data = (/\bChrome\/([\d.]+)\b/.exec(ua) || 0)[1])
) {
description.push("Chromium " + data);
}
// Detect non-Opera (Presto-based) versions (order is important).
if (!version) {
version = getVersion([
"(?:Cloud9|CriOS|CrMo|Edge|Edg|EdgA|EdgiOS|FxiOS|HeadlessChrome|IEMobile|Iron|Opera ?Mini|OPiOS|OPR|Raven|SamsungBrowser|Silk(?!/[\\d.]+$)|UCBrowser|YaBrowser)",
"Version",
qualify(name),
"(?:Firefox|Minefield|NetFront)",
]);
}
// Detect stubborn layout engines.
if (
(data =
(layout == "iCab" && parseFloat(version) > 3 && "WebKit") ||
(/\bOpera\b/.test(name) && (/\bOPR\b/.test(ua) ? "Blink" : "Presto")) ||
(/\b(?:Midori|Nook|Safari)\b/i.test(ua) &&
!/^(?:Trident|EdgeHTML)$/.test(layout) &&
"WebKit") ||
(!layout &&
/\bMSIE\b/i.test(ua) &&
(os == "Mac OS" ? "Tasman" : "Trident")) ||
(layout == "WebKit" &&
/\bPlayStation\b(?! Vita\b)/i.test(name) &&
"NetFront"))
) {
layout = [data];
}
// Detect Windows Phone 7 desktop mode.
if (
name == "IE" &&
(data = (/; *(?:XBLWP|ZuneWP)(\d+)/i.exec(ua) || 0)[1])
) {
name += " Mobile";
os = "Windows Phone " + (/\+$/.test(data) ? data : data + ".x");
description.unshift("desktop mode");
}
// Detect Windows Phone 8.x desktop mode.
else if (/\bWPDesktop\b/i.test(ua)) {
name = "IE Mobile";
os = "Windows Phone 8.x";
description.unshift("desktop mode");
version || (version = (/\brv:([\d.]+)/.exec(ua) || 0)[1]);
}
// Detect IE 11 identifying as other browsers.
else if (
name != "IE" &&
layout == "Trident" &&
(data = /\brv:([\d.]+)/.exec(ua))
) {
if (name) {
description.push(
"identifying as " + name + (version ? " " + version : "")
);
}
name = "IE";
version = data[1];
}
// Leverage environment features.
if (useFeatures) {
// Detect server-side environments.
// Rhino has a global function while others have a global object.
if (isHostType(context, "global")) {
if (java) {
data = java.lang.System;
arch = data.getProperty("os.arch");
os =
os ||
data.getProperty("os.name") + " " + data.getProperty("os.version");
}
if (rhino) {
try {
version = context.require("ringo/engine").version.join(".");
name = "RingoJS";
} catch (e) {
if (
(data = context.system) &&
data.global.system == context.system
) {
name = "Narwhal";
os || (os = data[0].os || null);
}
}
if (!name) {
name = "Rhino";
}
} else if (
typeof context.process == "object" &&
!context.process.browser &&
(data = context.process)
) {
if (typeof data.versions == "object") {
if (typeof data.versions.electron == "string") {
description.push("Node " + data.versions.node);
name = "Electron";
version = data.versions.electron;
} else if (typeof data.versions.nw == "string") {
description.push(
"Chromium " + version,
"Node " + data.versions.node
);
name = "NW.js";
version = data.versions.nw;
}
}
if (!name) {
name = "Node.js";
arch = data.arch;
os = data.platform;
version = /[\d.]+/.exec(data.version);
version = version ? version[0] : null;
}
}
}
// Detect Adobe AIR.
else if (getClassOf((data = context.runtime)) == airRuntimeClass) {
name = "Adobe AIR";
os = data.flash.system.Capabilities.os;
}
// Detect PhantomJS.
else if (getClassOf((data = context.phantom)) == phantomClass) {
name = "PhantomJS";
version =
(data = data.version || null) &&
data.major + "." + data.minor + "." + data.patch;
}
// Detect IE compatibility modes.
else if (
typeof doc.documentMode == "number" &&
(data = /\bTrident\/(\d+)/i.exec(ua))
) {
// We're in compatibility mode when the Trident version + 4 doesn't
// equal the document mode.
version = [version, doc.documentMode];
if ((data = +data[1] + 4) != version[1]) {
description.push("IE " + version[1] + " mode");
layout && (layout[1] = "");
version[1] = data;
}
version = name == "IE" ? String(version[1].toFixed(1)) : version[0];
}
// Detect IE 11 masking as other browsers.
else if (
typeof doc.documentMode == "number" &&
/^(?:Chrome|Firefox)\b/.test(name)
) {
description.push("masking as " + name + " " + version);
name = "IE";
version = "11.0";
layout = ["Trident"];
os = "Windows";
}
os = os && format(os);
}
// Detect prerelease phases.
if (
version &&
(data =
/(?:[ab]|dp|pre|[ab]\d+pre)(?:\d+\+?)?$/i.exec(version) ||
/(?:alpha|beta)(?: ?\d)?/i.exec(
ua + ";" + (useFeatures && nav.appMinorVersion)
) ||
(/\bMinefield\b/i.test(ua) && "a"))
) {
prerelease = /b/i.test(data) ? "beta" : "alpha";
version =
version.replace(RegExp(data + "\\+?$"), "") +
(prerelease == "beta" ? beta : alpha) +
(/\d+\+?/.exec(data) || "");
}
// Detect Firefox Mobile.
if (
name == "Fennec" ||
(name == "Firefox" && /\b(?:Android|Firefox OS|KaiOS)\b/.test(os))
) {
name = "Firefox Mobile";
}
// Obscure Maxthon's unreliable version.