32 lines
1.6 KiB
JavaScript
32 lines
1.6 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 * as browser from './browser.js';
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import * as platform from '../common/platform.js';
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/**
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* Browser feature we can support in current platform, browser and environment.
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*/
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export const BrowserFeatures = {
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clipboard: {
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writeText: (platform.isNative
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|| (document.queryCommandSupported && document.queryCommandSupported('copy'))
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|| !!(navigator && navigator.clipboard && navigator.clipboard.writeText)),
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readText: (platform.isNative
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|| !!(navigator && navigator.clipboard && navigator.clipboard.readText))
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},
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keyboard: (() => {
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if (platform.isNative || browser.isStandalone()) {
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return 0 /* KeyboardSupport.Always */;
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}
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if (navigator.keyboard || browser.isSafari) {
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return 1 /* KeyboardSupport.FullScreen */;
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}
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return 2 /* KeyboardSupport.None */;
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})(),
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// 'ontouchstart' in window always evaluates to true with typescript's modern typings. This causes `window` to be
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// `never` later in `window.navigator`. That's why we need the explicit `window as Window` cast
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touch: 'ontouchstart' in window || navigator.maxTouchPoints > 0,
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pointerEvents: window.PointerEvent && ('ontouchstart' in window || window.navigator.maxTouchPoints > 0 || navigator.maxTouchPoints > 0)
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};
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