octo-deno/lib/utils/platform.js
2017-06-10 06:41:53 +02:00

102 lines
4.9 KiB
JavaScript

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
utils.platform = (function () {
let platform = {}
const userAgent = (navigator.userAgent).toLowerCase()
const language = navigator.language || navigator.browserLanguage
const version = platform.version = (userAgent.match(/.*(?:rv|chrome|webkit|opera|ie)[/: ](.+?)([ );]|$)/) || [])[1]
const webkitVersion = (userAgent.match(/webkit\/(.+?) /) || [])[1]
platform.windows = platform.isWindows = !!/windows/.test(userAgent)
platform.mac = platform.isMac = !!/macintosh/.test(userAgent) || (/mac os x/.test(userAgent) && !/like mac os x/.test(userAgent))
platform.lion = platform.isLion = !!(/mac os x 10_7/.test(userAgent) && !/like mac os x 10_7/.test(userAgent))
platform.iPhone = platform.isiPhone = !!/iphone/.test(userAgent)
platform.iPod = platform.isiPod = !!/ipod/.test(userAgent)
platform.iPad = platform.isiPad = !!/ipad/.test(userAgent)
platform.iOS = platform.isiOS = platform.iPhone || platform.iPod || platform.iPad
platform.android = platform.isAndroid = !!/android/.test(userAgent)
platform.opera = /opera/.test(userAgent) ? version : 0
platform.isOpera = !!platform.opera
platform.msie = /msie/.test(userAgent) && !platform.opera ? version : 0
platform.isIE = !!platform.msie
platform.isIE8OrLower = !!(platform.msie && parseInt(platform.msie, 10) <= 8)
platform.mozilla = /mozilla/.test(userAgent) && !/(compatible|webkit|msie)/.test(userAgent) ? version : 0
platform.isMozilla = !!platform.mozilla
platform.webkit = /webkit/.test(userAgent) ? webkitVersion : 0
platform.isWebkit = !!platform.webkit
platform.chrome = /chrome/.test(userAgent) ? version : 0
platform.isChrome = !!platform.chrome
platform.mobileSafari = /apple.*mobile/.test(userAgent) && platform.iOS ? webkitVersion : 0
platform.isMobileSafari = !!platform.mobileSafari
platform.iPadSafari = platform.iPad && platform.isMobileSafari ? webkitVersion : 0
platform.isiPadSafari = !!platform.iPadSafari
platform.iPhoneSafari = platform.iPhone && platform.isMobileSafari ? webkitVersion : 0
platform.isiPhoneSafari = !!platform.iphoneSafari
platform.iPodSafari = platform.iPod && platform.isMobileSafari ? webkitVersion : 0
platform.isiPodSafari = !!platform.iPodSafari
platform.isiOSHomeScreen = platform.isMobileSafari && !/apple.*mobile.*safari/.test(userAgent)
platform.safari = platform.webkit && !platform.chrome && !platform.iOS && !platform.android ? webkitVersion : 0
platform.isSafari = !!platform.safari
platform.language = language.split('-', 1)[0]
platform.current =
platform.msie ? 'msie' : platform.mozilla ? 'mozilla' : platform.chrome ? 'chrome' : platform.safari ? 'safari' : platform.opera ? 'opera' : platform.mobileSafari ? 'mobile-safari' : platform.android ? 'android' : 'unknown'
function platformName (candidates) {
for (let i = 0; i < candidates.length; i++) {
if (candidates[i] in window) {
return 'window.' + candidates[i]
}
if (candidates[i] in navigator) {
return 'navigator.' + candidates[i]
}
}
return undefined
}
platform.GUM = platformName(['getUserMedia', 'webkitGetUserMedia', 'mozGetUserMedia', 'msGetUserMedia', 'getGUM'])
platform.PeerConnection = platformName(['webkitRTCPeerConnection', 'mozRTCPeerConnection', 'msPeerConnection'])
platform.IceCandidate = platformName(['mozRTCIceCandidate', 'RTCIceCandidate'])
platform.SessionDescription = platformName(['mozRTCSessionDescription', 'RTCSessionDescription'])
platform.URL = platformName(['URL', 'webkitURL'])
platform.AudioContext = platformName(['AudioContext', 'webkitAudioContext'])
platform.OfflineAudioContext = platformName(['OfflineAudioContext', 'webkitOfflineAudioContext'])
platform.MediaSource = platformName(['MediaSource', 'WebKitMediaSource'])
platform.SpeechRecognition = platformName(['SpeechRecognition', 'webkitSpeechRecognition'])
platform.SpeechGrammarList = platformName(['SpeechGrammarList', 'webkitSpeechGrammarList'])
platform.SpeechGrammar = platformName(['SpeechGrammar'])
/*
function findWebGLContextName (candidates) {
var canvas = document.createElement('canvas')
for (var i = 0; i < candidates.length; i++) {
var name = candidates[i]
try {
if (canvas.getContext(name)) {
return name
}
} catch (e) {}
}
return null
}
*/
platform.WebGL = 'webgl' // findWebGLContextName(["webgl", "experimental-webgl", "webkit-3d"]);
platform.WebGL2 = 'webgl2' // findWebGLContextName(["webgl2", "experimental-webgl2"]);
platform.captureStreamUntilEnded = 'captureStreamUntilEnded'
if (platform.isMozilla) {
platform.captureStreamUntilEnded = 'mozCaptureStreamUntilEnded'
}
platform.srcObject = 'srcObject'
if (platform.isMozilla) {
platform.srcObject = 'mozSrcObject'
}
return platform
})()