71 lines
2.9 KiB
JavaScript
71 lines
2.9 KiB
JavaScript
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/*---------------------------------------------------------------------------------------------
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* Copyright (c) Microsoft Corporation. All rights reserved.
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* Licensed under the MIT License. See License.txt in the project root for license information.
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*--------------------------------------------------------------------------------------------*/
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import { Emitter } from '../common/event.js';
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var WindowManager = /** @class */ (function () {
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function WindowManager() {
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// --- Zoom Level
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this._zoomLevel = 0;
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this._lastZoomLevelChangeTime = 0;
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this._onDidChangeZoomLevel = new Emitter();
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this.onDidChangeZoomLevel = this._onDidChangeZoomLevel.event;
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}
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WindowManager.prototype.getZoomLevel = function () {
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return this._zoomLevel;
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};
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WindowManager.prototype.getTimeSinceLastZoomLevelChanged = function () {
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return Date.now() - this._lastZoomLevelChangeTime;
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};
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// --- Pixel Ratio
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WindowManager.prototype.getPixelRatio = function () {
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var ctx = document.createElement('canvas').getContext('2d');
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var dpr = window.devicePixelRatio || 1;
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var bsr = ctx.webkitBackingStorePixelRatio ||
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ctx.mozBackingStorePixelRatio ||
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ctx.msBackingStorePixelRatio ||
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ctx.oBackingStorePixelRatio ||
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ctx.backingStorePixelRatio || 1;
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return dpr / bsr;
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};
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WindowManager.INSTANCE = new WindowManager();
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return WindowManager;
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}());
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export function getZoomLevel() {
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return WindowManager.INSTANCE.getZoomLevel();
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}
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/** Returns the time (in ms) since the zoom level was changed */
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export function getTimeSinceLastZoomLevelChanged() {
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return WindowManager.INSTANCE.getTimeSinceLastZoomLevelChanged();
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}
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export function onDidChangeZoomLevel(callback) {
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return WindowManager.INSTANCE.onDidChangeZoomLevel(callback);
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}
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export function getPixelRatio() {
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return WindowManager.INSTANCE.getPixelRatio();
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}
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var userAgent = navigator.userAgent;
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export var isIE = (userAgent.indexOf('Trident') >= 0);
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export var isEdge = (userAgent.indexOf('Edge/') >= 0);
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export var isEdgeOrIE = isIE || isEdge;
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export var isFirefox = (userAgent.indexOf('Firefox') >= 0);
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export var isWebKit = (userAgent.indexOf('AppleWebKit') >= 0);
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export var isChrome = (userAgent.indexOf('Chrome') >= 0);
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export var isSafari = (!isChrome && (userAgent.indexOf('Safari') >= 0));
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export var isWebkitWebView = (!isChrome && !isSafari && isWebKit);
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export var isIPad = (userAgent.indexOf('iPad') >= 0);
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export var isEdgeWebView = isEdge && (userAgent.indexOf('WebView/') >= 0);
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export function hasClipboardSupport() {
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if (isIE) {
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return false;
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}
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if (isEdge) {
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var index = userAgent.indexOf('Edge/');
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var version = parseInt(userAgent.substring(index + 5, userAgent.indexOf('.', index)), 10);
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if (!version || (version >= 12 && version <= 16)) {
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return false;
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}
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}
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return true;
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}
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