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YuruToot/app/javascript/mastodon/is_mobile.js

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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;