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Fix memory leak

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GHOSCHT 2020-08-08 19:34:29 +02:00
parent 75346bdd79
commit 1a810e8715
1 changed files with 13 additions and 3 deletions
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16
Dashboard/app/renderer/components/LampButtonToggle.js
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@ -1,4 +1,4 @@
import React, { useState } from 'react'; import React, { useState, useEffect } from 'react';
import { useSelector } from 'react-redux/'; import { useSelector } from 'react-redux/';
import Button from '@material-ui/core/Button'; import Button from '@material-ui/core/Button';
import EmojiObjectsIcon from '@material-ui/icons/EmojiObjects'; import EmojiObjectsIcon from '@material-ui/icons/EmojiObjects';
@ -6,10 +6,20 @@ import EmojiObjectsIcon from '@material-ui/icons/EmojiObjects';
export default function LampButtonToggle(props) { export default function LampButtonToggle(props) {
const comConnection = useSelector((state) => state.comConnectionReducer); const comConnection = useSelector((state) => state.comConnectionReducer);
const [comData, setComData] = useState(''); const [comData, setComData] = useState('');
comConnection.parser.on('data', (data) => {
const comDataListener = (data) => {
setComData(data); setComData(data);
}); };
useEffect(() => {
comConnection.parser.on('data', comDataListener);
return () => {
comConnection.parser.removeListener('data', comDataListener);
};
}, []);
const lampEnabled = comData[props.lampnumber] === '1'; const lampEnabled = comData[props.lampnumber] === '1';
return ( return (
<div> <div>
<Button <Button