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author | Eug-VS <eug-vs@keemail.me> | 2020-01-11 17:44:46 +0300 |
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committer | Eug-VS <eug-vs@keemail.me> | 2020-01-11 17:44:46 +0300 |
commit | 31da3a746ce7d86ade32b60acb68365670d97726 (patch) | |
tree | 90041e4a485179f203202f134dff5994601edf66 /src/components/TimerPage/Timer/Timer.js | |
parent | e78ecf560a0c6f4cf59a3c4341884996464c7923 (diff) | |
download | chrono-cube-ui-31da3a746ce7d86ade32b60acb68365670d97726.tar.gz |
Move all pages to separate folder
Diffstat (limited to 'src/components/TimerPage/Timer/Timer.js')
-rw-r--r-- | src/components/TimerPage/Timer/Timer.js | 119 |
1 files changed, 0 insertions, 119 deletions
diff --git a/src/components/TimerPage/Timer/Timer.js b/src/components/TimerPage/Timer/Timer.js deleted file mode 100644 index 92b153d..0000000 --- a/src/components/TimerPage/Timer/Timer.js +++ /dev/null @@ -1,119 +0,0 @@ -import React, { useState, useEffect } from 'react'; - -import { Paper, Typography } from '@material-ui/core'; -import { makeStyles } from "@material-ui/core/styles"; - -const useStyles = makeStyles(theme => ({ - root: { - textAlign: 'center', - padding: theme.spacing(5), - background: theme.palette.primary.main, - marginTop: theme.spacing(20), - }, -})); - -const Timer = ({ registerResult }) => { - const classes = useStyles(); - - const SPACE = 32; - const maxCountdown = 15000; - const [time, setTime] = useState('00:00:00'); - const [mode, setMode] = useState('idle'); - const [repeater, setRepeater] = useState(0); - - useEffect(()=> { - clearInterval(repeater); - const timestamp = Date.now(); - - if (mode === 'countdown') setRepeater(setInterval(() => { - const timeDelta = maxCountdown - (Date.now() - timestamp); - if (timeDelta <= 0) setMode('over'); - setTime(convertTimeToString(timeDelta)); - }, 10)); - - if (mode === 'running') setRepeater(setInterval(() => { - setTime(convertTimeToString(Date.now() - timestamp)); - }, 10)); - - if (mode === 'over') { - setTime('00:00:00'); - } - }, [mode]); - - const handleKeyPress = event => { - event.preventDefault(); - if (event.keyCode === SPACE && mode === 'idle' ) setMode('countdown'); - }; - - const handleKeyUp = event => { - clearInterval(repeater); - if (event.keyCode === SPACE) { - if (mode === 'running') { - registerResult(time); - setMode('idle'); - } else if (mode === 'over') { - setMode('idle'); - } else { - setMode('running'); - } - } - }; - - useEffect(() => { - window.addEventListener('keyup', handleKeyUp); - window.addEventListener('keypress', handleKeyPress); - - return () => { - window.removeEventListener('keyup', handleKeyUp); - window.removeEventListener('keypress', handleKeyPress); - }; - }); - - const composeHelperText = () => { - switch (mode) { - case 'running': return '_'; - case 'countdown': return 'Release SPACE to begin'; - case 'over': return 'You are too late!'; - default: return 'Hold SPACE to start countdown'; - } - }; - - const helperColor = () => { - switch (mode) { - case 'running': return 'primary'; - case 'over': return 'secondary'; - default: return 'textSecondary'; - } - }; - - return ( - <Paper elevation={3} className={classes.root}> - <Typography variant="h1"> {time} </Typography> - <Typography variant="h5" color={helperColor()}> - {composeHelperText()} - </Typography> - </Paper> - ); -}; - -const convertTimeToString = timeDelta => { - let resultTime = ''; - - const minute = Math.floor(timeDelta / 60000); - if (minute < 10) resultTime += '0'; - resultTime += minute + ':'; - - let second = Math.floor(timeDelta / 1000); - if (second < 10) resultTime += '0'; - if (second > 59) second %= 60; - resultTime += second + ':'; - - const mill = Math.floor((timeDelta % 1000) / 10); - if (mill < 10) resultTime += '0'; - resultTime += mill; - - return resultTime; -}; - - -export default Timer; |