@tldraw/editor
Version:
tldraw infinite canvas SDK (editor).
37 lines (36 loc) • 1.39 kB
JavaScript
import { useLayoutEffect, useState } from "react";
/*!
* BSD License: https://github.com/outline/rich-markdown-editor/blob/main/LICENSE
* Copyright (c) 2020 General Outline, Inc (https://www.getoutline.com/) and individual contributors.
*
* Returns the height of the viewport.
* This is mainly to account for virtual keyboards on mobile devices.
*
* N.B. On iOS, you have to take into account the offsetTop as well so that you get an accurate position
* while using the virtual keyboard.
*/
function useViewportHeight() {
const visualViewport = window.visualViewport;
const [height, setHeight] = useState(
() => visualViewport ? visualViewport.height + visualViewport.offsetTop : window.innerHeight
);
useLayoutEffect(() => {
const handleResize = () => {
const visualViewport2 = window.visualViewport;
setHeight(
() => visualViewport2 ? visualViewport2.height + visualViewport2.offsetTop : window.innerHeight
);
};
window.visualViewport?.addEventListener("resize", handleResize);
window.visualViewport?.addEventListener("scroll", handleResize);
return () => {
window.visualViewport?.removeEventListener("resize", handleResize);
window.visualViewport?.removeEventListener("scroll", handleResize);
};
}, []);
return height;
}
export {
useViewportHeight
};
//# sourceMappingURL=useViewportHeight.mjs.map