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- // @ts-check
- import { supportsPassiveEvents } from 'detect-passive-events';
- import { forceSingleColumn } from 'mastodon/initial_state';
- const LAYOUT_BREAKPOINT = 630;
- /**
- * @param {number} width
- * @returns {boolean}
- */
- export const isMobile = width => width <= LAYOUT_BREAKPOINT;
- /**
- * @returns {string}
- */
- export const layoutFromWindow = () => {
- if (isMobile(window.innerWidth)) {
- return 'mobile';
- } else if (forceSingleColumn) {
- return 'single-column';
- } else {
- return 'multi-column';
- }
- };
- const iOS = /iPad|iPhone|iPod/.test(navigator.userAgent) && !window.MSStream;
- const listenerOptions = supportsPassiveEvents ? { passive: true } : false;
- let userTouching = false;
- const touchListener = () => {
- userTouching = true;
- window.removeEventListener('touchstart', touchListener, listenerOptions);
- };
- window.addEventListener('touchstart', touchListener, listenerOptions);
- export const isUserTouching = () => userTouching;
- export const isIOS = () => iOS;
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