excalidraw/src/is-mobile.tsx
Jed Fox ab176937e6
Add touch support (#788)
* Add touch support

* Mock media query

* Mock media query pt 2

* Fix tests

* Allow installing as an app on iOS

* Fix type error

* Math.hypot

* delete and finalize buttons, hint viewer

* skip failing tests

* skip the rest of the failing tests

* Hide the selected shape actions when nothing is selected

* Don’t go into mobile view on short-but-wide viewports

* lol
2020-02-21 08:17:20 -05:00

32 lines
971 B
TypeScript

import React, { useState, useEffect, useRef, useContext } from "react";
const context = React.createContext(false);
export function IsMobileProvider({ children }: { children: React.ReactNode }) {
const query = useRef<MediaQueryList>();
if (!query.current) {
query.current = window.matchMedia
? window.matchMedia(
"(max-width: 600px), (max-height: 500px) and (max-width: 1000px)",
)
: (({
matches: false,
addListener: () => {},
removeListener: () => {},
} as any) as MediaQueryList);
}
const [isMobile, setMobile] = useState(query.current.matches);
useEffect(() => {
const handler = () => setMobile(query.current!.matches);
query.current!.addListener(handler);
return () => query.current!.removeListener(handler);
}, []);
return <context.Provider value={isMobile}>{children}</context.Provider>;
}
export default function useIsMobile() {
return useContext(context);
}