octo-deno/utils/platform.js

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2017-04-22 20:16:47 +00:00
/* 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/. */
2017-04-13 13:20:04 +00:00
utils.platform = {
platform: function () {
var version, webkitVersion, platform = {};
var userAgent = (navigator.userAgent).toLowerCase();
var language = navigator.language || navigator.browserLanguage;
version = platform.version = (userAgent.match(/.*(?:rv|chrome|webkit|opera|ie)[\/: ](.+?)([ \);]|$)/) || [])[1];
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 (var 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"]);
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;
}
};