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34 lines
1.2 KiB
34 lines
1.2 KiB
import * as Bowser from "bowser"; // TypeScript
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let parser: Bowser.Parser.Parser|undefined;
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function getParser() {
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return parser || (parser = Bowser.getParser(window.navigator.userAgent));
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}
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// Returns whether the browser we are in is a desktop browser.
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export function isDesktop() {
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const platformType = getParser().getPlatformType();
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return (!platformType || platformType === 'desktop');
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}
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// Returns whether the browser is on mobile iOS.
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// This is used in particular in viewport.ts to set maximum-scale=1 (to prevent iOS auto-zoom when
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// an input is focused, without preventing manual pinch-to-zoom).
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export function isIOS() {
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return navigator.platform && /iPad|iPhone|iPod/.test(navigator.platform);
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}
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// Returns 'metaKey' on Mac / iOS, and 'ctrlKey' elsewhere. This is useful for various keyboard
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// interactions that use Control on Windows and Linux, and Command key on Mac for the same
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// purpose. Suitable to use with KeyboardEvent and MouseEvent.
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// (Note: Mousetrap.js uses the same logic to interpret its "mod" key alias.)
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export function modKeyProp(): 'metaKey'|'ctrlKey' {
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return /Mac|iPod|iPhone|iPad/.test(navigator.platform) ? 'metaKey' : 'ctrlKey';
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}
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export function isWin() {
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const os = getParser().getOSName();
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return os === 'Windows';
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}
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