33 lines
852 B
TypeScript
33 lines
852 B
TypeScript
import { supportsPassiveEvents } from 'detect-passive-events';
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import { forceSingleColumn } from './initial_state';
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const LAYOUT_BREAKPOINT = 630;
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export const isMobile = (width: number) => width <= LAYOUT_BREAKPOINT;
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export type LayoutType = 'mobile' | 'single-column' | 'multi-column';
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export const layoutFromWindow = (): LayoutType => {
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if (isMobile(window.innerWidth)) {
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return 'mobile';
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} else if (forceSingleColumn) {
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return 'single-column';
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} else {
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return 'multi-column';
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}
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};
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const listenerOptions = supportsPassiveEvents ? { passive: true } : false;
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let userTouching = false;
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const touchListener = () => {
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userTouching = true;
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window.removeEventListener('touchstart', touchListener);
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};
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window.addEventListener('touchstart', touchListener, listenerOptions);
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export const isUserTouching = () => userTouching;
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