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use useEffect for key listeners on camera control panel (#7827)

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* use useEffect for key listeners

* dependencies

* useCallbacks
This commit is contained in:
Josh Hawkins 2023-09-21 05:25:57 -05:00 committed by GitHub
parent 111933d3b4
commit a3eccce8f3
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1 changed files with 25 additions and 16 deletions
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41
web/src/components/CameraControlPanel.jsx
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@ -1,5 +1,5 @@
import { h } from 'preact';
import { useState } from 'preact/hooks';
import { useEffect, useCallback, useState } from 'preact/hooks';
import useSWR from 'swr';
import { usePtzCommand } from '../api/ws';
import ActivityIndicator from './ActivityIndicator';
@ -27,29 +27,25 @@ export default function CameraControlPanel({ camera = '' }) {
setCurrentPreset('');
};
const onSetMove = async (e, dir) => {
const onSetMove = useCallback(async (e, dir) => {
e.stopPropagation();
sendPtz(`MOVE_${dir}`);
setCurrentPreset('');
};
}, [sendPtz, setCurrentPreset]);
const onSetZoom = async (e, dir) => {
const onSetZoom = useCallback(async (e, dir) => {
e.stopPropagation();
sendPtz(`ZOOM_${dir}`);
setCurrentPreset('');
};
}, [sendPtz, setCurrentPreset]);
const onSetStop = async (e) => {
const onSetStop = useCallback(async (e) => {
e.stopPropagation();
sendPtz('STOP');
};
}, [sendPtz]);
if (!ptz) {
return <ActivityIndicator />;
}
document.addEventListener('keydown', (e) => {
if (!e) {
const keydownListener = useCallback((e) => {
if (!ptz || !e) {
return;
}
@ -83,9 +79,9 @@ export default function CameraControlPanel({ camera = '' }) {
}
}
}
});
}, [onSetMove, onSetZoom, ptz]);
document.addEventListener('keyup', (e) => {
const keyupListener = useCallback((e) => {
if (!e || e.repeat) {
return;
}
@ -101,7 +97,20 @@ export default function CameraControlPanel({ camera = '' }) {
e.preventDefault();
onSetStop(e);
}
});
}, [onSetStop]);
useEffect(() => {
document.addEventListener('keydown', keydownListener);
document.addEventListener('keyup', keyupListener);
return () => {
document.removeEventListener('keydown', keydownListener);
document.removeEventListener('keyup', keyupListener);
};
}, [keydownListener, keyupListener, ptz]);
if (!ptz) {
return <ActivityIndicator />;
}
return (
<div data-testid="control-panel" className="p-4 text-center sm:flex justify-start">