Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 | 1x 1x 1x | import React, {
MutableRefObject,
ReactNode,
useCallback,
useEffect,
useRef,
} from "react";
import { NavLink } from "react-router-dom";
import { getKey, KeyboardShortcut, keyboardShortcutHandler } from "../utils";
/**
* React hook to add a global keyboard shortcut for the given
* key for the lifetime of the component.
*/
function useKeyboardShortcut(
key: KeyboardShortcut,
action: (ev: KeyboardEvent) => void
): void {
useEffect(() => {
const handler = keyboardShortcutHandler(key, action);
window.addEventListener("keydown", handler);
return () => window.removeEventListener("keydown", handler);
}, [key, action]);
}
/**
* Add a global keyboard shortcut for the given key and simulate
* a click on the ref'ed element.
*/
function useKeyboardShortcutRef<T extends HTMLElement>(
key: KeyboardShortcut
): MutableRefObject<T | null> {
const el = useRef<T | null>(null);
const handler = useCallback(() => {
el.current?.click();
}, []);
useKeyboardShortcut(key, handler);
return el;
}
export default function LinkWithHotkey(props: {
to: string;
children: ReactNode;
shortcut: KeyboardShortcut;
}) {
let path = props.to;
if (path.substr(0, 1) !== "/") {
path = `${$LEKTOR_CONFIG.admin_root}/${path}`;
}
const el = useKeyboardShortcutRef<HTMLAnchorElement>(props.shortcut);
return (
<NavLink
to={path}
activeClassName="active"
title={getKey(props.shortcut)}
ref={el}
>
{props.children}
</NavLink>
);
}
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