diff options
Diffstat (limited to 'src/pages/Timer/TimerButton')
-rw-r--r-- | src/pages/Timer/TimerButton/TimerButton.js | 122 |
1 files changed, 0 insertions, 122 deletions
diff --git a/src/pages/Timer/TimerButton/TimerButton.js b/src/pages/Timer/TimerButton/TimerButton.js deleted file mode 100644 index fdb6b7c..0000000 --- a/src/pages/Timer/TimerButton/TimerButton.js +++ /dev/null @@ -1,122 +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.background.elevation3, - marginTop: theme.spacing(10), - }, -})); - -const TimerButton = ({ registerResult }) => { - const classes = useStyles(); - - const SPACE = 32; - const maxCountdown = 15000; - const [time, setTime] = useState('00:00:00'); - const [mode, setMode] = useState('idle'); - - useEffect(()=> { - const timestamp = Date.now(); - - if (mode === 'countdown') { - const repeater = setInterval(() => { - const timeDelta = maxCountdown - (Date.now() - timestamp); - if (timeDelta <= 0) setMode('over'); - setTime(convertTimeToString(timeDelta)); - }, 10); - return () => clearInterval(repeater); - } - - if (mode === 'running') { - const repeater = setInterval(() => { - setTime(convertTimeToString(Date.now() - timestamp)); - }, 10); - return () => clearInterval(repeater); - } - - if (mode === 'over') { - setTime('00:00:00'); - } - }, [mode]); - - const handleKeyPress = event => { - event.preventDefault(); - if (event.keyCode === SPACE && mode === 'idle' ) setMode('countdown'); - }; - - const handleKeyUp = event => { - 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 'Go fast!'; - 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 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 > 59) second %= 60; - if (second < 10) resultTime += '0'; - resultTime += second + ':'; - - const mill = Math.floor((timeDelta % 1000) / 10); - if (mill < 10) resultTime += '0'; - resultTime += mill; - - return resultTime; -}; - - -export default TimerButton; |