React Scheduler - Current Time Indicator

import React, { useCallback, useState } from 'react'; import Scheduler, { Resource, SchedulerTypes } from 'devextreme-react/scheduler'; import { Switch, SwitchTypes } from 'devextreme-react/switch'; import { NumberBox, NumberBoxTypes } from 'devextreme-react/number-box'; import { data, moviesData } from './data.ts'; import AppointmentTemplate from './AppointmentTemplate.tsx'; const currentDate = new Date(); const views: SchedulerTypes.ViewType[] = ['week', 'timelineWeek']; const intervalLabel = { 'aria-label': 'Interval' }; const onContentReady = (e: SchedulerTypes.ContentReadyEvent) => { e.component.scrollTo(new Date()); }; const onAppointmentClick = (e: SchedulerTypes.AppointmentClickEvent) => { e.cancel = true; }; const onAppointmentDblClick = (e: SchedulerTypes.AppointmentDblClickEvent) => { e.cancel = true; }; const App = () => { const [showCurrentTimeIndicator, setShowCurrentTimeIndicator] = useState(true); const [shadeUntilCurrentTime, setShadeUntilCurrentTime] = useState(true); const [updateInterval, setUpdateInterval] = useState(10); const onShowCurrentTimeIndicatorChanged = useCallback((e: SwitchTypes.ValueChangedEvent) => { setShowCurrentTimeIndicator(e.value); }, []); const onShadeUntilCurrentTimeChanged = useCallback((e: SwitchTypes.ValueChangedEvent) => { setShadeUntilCurrentTime(e.value); }, []); const onUpdateIntervalChanged = useCallback((e: NumberBoxTypes.ValueChangedEvent) => { setUpdateInterval(e.value); }, []); return ( <React.Fragment> <Scheduler dataSource={data} views={views} defaultCurrentView="week" showCurrentTimeIndicator={showCurrentTimeIndicator} indicatorUpdateInterval={updateInterval * 1000} showAllDayPanel={false} shadeUntilCurrentTime={shadeUntilCurrentTime} defaultCurrentDate={currentDate} editing={false} height={600} appointmentComponent={AppointmentTemplate} onContentReady={onContentReady} onAppointmentClick={onAppointmentClick} onAppointmentDblClick={onAppointmentDblClick} > <Resource dataSource={moviesData} fieldExpr="movieId" /> </Scheduler> <div className="options"> <div className="column"> <div className="option"> <div className="label">Current time indicator </div> {' '} <div className="value"> <Switch id="show-indicator" value={showCurrentTimeIndicator} onValueChanged={onShowCurrentTimeIndicatorChanged} /> </div> </div> <div className="option"> <div className="label">Shading until current time </div> {' '} <div className="value"> <Switch id="allow-shading" value={shadeUntilCurrentTime} onValueChanged={onShadeUntilCurrentTimeChanged} /> </div> </div> </div> {' '} <div className="column"> <div className="option"> <div className="label">Update position in </div> {' '} <div className="value"> <NumberBox min={1} max={1200} value={updateInterval} step={10} showSpinButtons={true} width={100} format="#0 s" inputAttr={intervalLabel} onValueChanged={onUpdateIntervalChanged} /> </div> </div> </div> </div> </React.Fragment> ); }; export default App;