Hello Code

src/vs/base/browser/browser.ts

@@ -0,0 +1,173 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+'use strict';
+
+import types = require('vs/base/common/types');
+import * as Platform from 'vs/base/common/platform';
+
+interface ISafeWindow {
+	Worker: any;
+}
+
+interface ISafeDocument {
+	URL:string;
+	createElement(tagName:'div'):HTMLDivElement;
+	createElement(tagName:string):HTMLElement;
+}
+
+interface INavigator {
+	userAgent:string;
+}
+
+interface ILocation {
+	search: string;
+}
+
+interface IGlobalScope {
+	window:ISafeWindow;
+	navigator:INavigator;
+	parent:IGlobalScope;
+	document:ISafeDocument;
+	history: {
+		pushState:any
+	};
+	isTest:boolean;
+	location: ILocation;
+}
+
+var globals = <IGlobalScope><any> (typeof self === 'object' ? self : global);
+
+// MAC:
+// chrome: "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_2) AppleWebKit/535.2 (KHTML, like Gecko) Chrome/15.0.874.100 Safari/535.2"
+// safari: "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_2) AppleWebKit/534.51.22 (KHTML, like Gecko) Version/5.1.1 Safari/534.51.22"
+//
+// WINDOWS:
+// chrome: "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.2 (KHTML, like Gecko) Chrome/15.0.874.102 Safari/535.2"
+// IE: "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E; MS-RTC LM 8; InfoPath.3; Zune 4.7)"
+// Opera:	"Opera/9.80 (Windows NT 6.1; U; en) Presto/2.9.168 Version/11.52"
+// FF: "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:8.0) Gecko/20100101 Firefox/8.0"
+
+// LINUX:
+// chrome: "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.71 Safari/537.36"
+// firefox: "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:34.0) Gecko/20100101 Firefox/34.0"
+
+var userAgent = globals.navigator ? globals.navigator.userAgent : '';
+var isTest = !!globals.isTest;
+var isPseudo = globals.document && globals.document.URL.match(/[^\?]*\?[^\#]*pseudo=true/);
+
+// DOCUMENTED FOR FUTURE REFERENCE:
+// When running IE11 in IE10 document mode, the code below will identify the browser as being IE10,
+// which is correct because IE11 in IE10 document mode will reimplement all the bugs of IE10
+export const isIE11 = (userAgent.indexOf('Trident') >= 0 && userAgent.indexOf('MSIE') < 0);
+export const isIE10 = (userAgent.indexOf('MSIE 10') >= 0);
+export const isIE9 = (userAgent.indexOf('MSIE 9') >= 0);
+export const isIE11orEarlier = isIE11 || isIE10 || isIE9;
+export const isIE10orEarlier = isIE10 || isIE9;
+export const isIE10orLater = isIE11 || isIE10;
+
+export const isOpera = (userAgent.indexOf('Opera') >= 0);
+export const isFirefox = (userAgent.indexOf('Firefox') >= 0);
+export const isWebKit = (userAgent.indexOf('AppleWebKit') >= 0);
+export const isChrome = (userAgent.indexOf('Chrome') >= 0);
+export const isSafari = (userAgent.indexOf('Chrome') === -1) && (userAgent.indexOf('Safari') >= 0);
+export const isIPad = (userAgent.indexOf('iPad') >= 0);
+
+export const canUseTranslate3d = !isIE9 && !isFirefox;
+
+export const enableEmptySelectionClipboard = isWebKit;
+
+/**
+ * Returns if the browser supports the history.pushState function or not.
+ */
+export function canPushState() {
+	return (!_disablePushState && globals.history && globals.history.pushState);
+};
+
+var _disablePushState = false;
+/**
+ * Helpful when we detect that pushing state does not work for some reason (e.g. FF prevents pushState for security reasons in some cases)
+ */
+export function disablePushState() {
+	_disablePushState = true;
+}
+
+/**
+ * Returns if the browser supports CSS 3 animations.
+ */
+export function hasCSSAnimationSupport() {
+	if (this._hasCSSAnimationSupport === true || this._hasCSSAnimationSupport === false) {
+		return this._hasCSSAnimationSupport;
+	}
+
+	if (!globals.document) {
+		return false;
+	}
+
+	var supported = false;
+	var element = globals.document.createElement('div');
+	var properties = ['animationName', 'webkitAnimationName', 'msAnimationName', 'MozAnimationName', 'OAnimationName'];
+	for (var i = 0; i < properties.length; i++) {
+		var property = properties[i];
+		if (!types.isUndefinedOrNull(element.style[property]) || element.style.hasOwnProperty(property)) {
+			supported = true;
+			break;
+		}
+	}
+
+	if (supported) {
+		this._hasCSSAnimationSupport = true;
+	} else {
+		this._hasCSSAnimationSupport = false;
+	}
+
+	return this._hasCSSAnimationSupport;
+}
+
+/**
+ * Returns if the browser supports the provided video mime type or not.
+ */
+export function canPlayVideo(type:string) {
+	if (!globals.document) {
+		return false;
+	}
+
+	var video:HTMLVideoElement = <HTMLVideoElement>globals.document.createElement('video');
+	if (video.canPlayType) {
+		var canPlay = video.canPlayType(type);
+
+		return canPlay === 'maybe' || canPlay === 'probably';
+	}
+
+	return false;
+}
+
+/**
+ * Returns if the browser supports the provided audio mime type or not.
+ */
+export function canPlayAudio(type:string) {
+	if (!globals.document) {
+		return false;
+	}
+
+	var audio:HTMLAudioElement = <HTMLAudioElement>globals.document.createElement('audio');
+	if (audio.canPlayType) {
+		var canPlay = audio.canPlayType(type);
+
+		return canPlay === 'maybe' || canPlay === 'probably';
+	}
+
+	return false;
+}
+
+export function isInWebWorker():boolean {
+	return !globals.document && typeof((<any>globals).importScripts) !== 'undefined';
+}
+
+export function supportsExecCommand(command:string): boolean {
+	return (
+		(isIE11orEarlier || Platform.isNative)
+		&& document.queryCommandSupported(command)
+	);
+}