React Scheduler - Current Time Indicator

import React, { useCallback, useState } from 'react';

import Scheduler, { Resource } from 'devextreme-react/scheduler';

import { Switch } from 'devextreme-react/switch';

import { NumberBox } from 'devextreme-react/number-box';

import { data, moviesData } from './data.js';

import AppointmentTemplate from './AppointmentTemplate.js';

​

const currentDate = new Date();

const views = ['week', 'timelineWeek'];

const intervalLabel = { 'aria-label': 'Interval' };

const onContentReady = (e) => {

  e.component.scrollTo(new Date());

};

const onAppointmentClick = (e) => {

  e.cancel = true;

};

const onAppointmentDblClick = (e) => {

  e.cancel = true;

};

const App = () => {

  const [showCurrentTimeIndicator, setShowCurrentTimeIndicator] = useState(true);

  const [shadeUntilCurrentTime, setShadeUntilCurrentTime] = useState(true);

  const [updateInterval, setUpdateInterval] = useState(10);

  const onShowCurrentTimeIndicatorChanged = useCallback((e) => {

    setShowCurrentTimeIndicator(e.value);

  }, []);

  const onShadeUntilCurrentTimeChanged = useCallback((e) => {

    setShadeUntilCurrentTime(e.value);

  }, []);

  const onUpdateIntervalChanged = useCallback((e) => {

    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;

​

import React from 'react';

import Query from 'devextreme/data/query';

import { type SchedulerTypes } from 'devextreme-react/scheduler';

import { moviesData } from './data.ts';

​

type AppointmentTemplateProps = {

  data: { appointmentData: SchedulerTypes.Appointment; };

};

​

const getMovieById = (id) => Query(moviesData).filter(['id', id]).toArray()[0];

​

const AppointmentTemplate = (props: AppointmentTemplateProps) => {

  const { appointmentData } = props.data;

​

  const movieInfo = getMovieById(appointmentData.movieId) || {};

​

  return (

    <div className="movie">

      <img src={movieInfo.image} alt={movieInfo.text + ' poster'} />

      <div className="movie-text">{movieInfo.text}</div>

    </div>

  );

};

​

export default AppointmentTemplate;

​

import React from 'react';

import ReactDOM from 'react-dom';

​

import App from './App.tsx';

​

ReactDOM.render(

  <App />,

  document.getElementById('app'),

);

​

import { SchedulerTypes } from 'devextreme-react/scheduler';

​

type Appointment = SchedulerTypes.Appointment & { movieId: number };

​

type Resource = {

  id: number;

  text: string;

  image: string;

};

​

export const today = new Date();

today.setHours(0, 0, 0, 0);

today.setDate(today.getDate() - today.getDay() + 3);

​

export const data: Appointment[] = [

  {

    movieId: 1,

    startDate: new Date(today.getTime() - 113.5 * 3600000),

    endDate: new Date(today.getTime() - 111.5 * 3600000),

    recurrenceRule: 'FREQ=HOURLY;INTERVAL=15;COUNT=15',

  }, {

    movieId: 2,

    startDate: new Date(today.getTime() - 110.5 * 3600000),

    endDate: new Date(today.getTime() - 108.5 * 3600000),

    recurrenceRule: 'FREQ=HOURLY;INTERVAL=15;COUNT=15',

  }, {

    movieId: 3,

    startDate: new Date(today.getTime() - 106.5 * 3600000),

    endDate: new Date(today.getTime() - 104.5 * 3600000),

    recurrenceRule: 'FREQ=HOURLY;INTERVAL=15;COUNT=15',

  }, {

    movieId: 4,

    startDate: new Date(today.getTime() - 104 * 3600000),

    endDate: new Date(today.getTime() - 102 * 3600000),

    recurrenceRule: 'FREQ=HOURLY;INTERVAL=15;COUNT=15',

  }, {

    movieId: 5,

    startDate: new Date(today.getTime() - 101 * 3600000),

    endDate: new Date(today.getTime() - 99 * 3600000),

    recurrenceRule: 'FREQ=HOURLY;INTERVAL=15;COUNT=15',

  },

];

​

export const moviesData: Resource[] = [{

  id: 1,

  text: 'His Girl Friday',

  image: 'images/movies/HisGirlFriday.jpg',

}, {

  id: 2,

  text: 'Royal Wedding',

  image: 'images/movies/RoyalWedding.jpg',

}, {

  id: 3,

  text: 'A Star Is Born',

  image: 'images/movies/AStartIsBorn.jpg',

}, {

  id: 4,

  text: 'The Screaming Skull',

  image: 'images/movies/ScreamingSkull.jpg',

}, {

  id: 5,

  text: 'It\'s a Wonderful Life',

  image: 'images/movies/ItsAWonderfulLife.jpg',

}];

​

window.exports = window.exports || {};

window.config = {

  transpiler: 'ts',

  typescriptOptions: {

    module: 'system',

    emitDecoratorMetadata: true,

    experimentalDecorators: true,

    jsx: 'react',

  },

  meta: {

    'react': {

      'esModule': true,

    },

    'typescript': {

      'exports': 'ts',

    },

    'devextreme/time_zone_utils.js': {

      'esModule': true,

    },

    'devextreme/localization.js': {

      'esModule': true,

    },

    'devextreme/viz/palette.js': {

      'esModule': true,

    },

    'openai': {

      'esModule': true,

    },

  },

  paths: {

    'npm:': 'https://unpkg.com/',

    'bundles:': 'bundles/',

    'externals:': 'bundles/externals/',

  },

  defaultExtension: 'js',

  map: {

    'ts': 'npm:plugin-typescript@8.0.0/lib/plugin.js',

    'typescript': 'npm:typescript@4.2.4/lib/typescript.js',

    'jszip': 'npm:jszip@3.10.1/dist/jszip.min.js',

    'react': 'npm:react@17.0.2/umd/react.development.js',

    'react-dom': 'npm:react-dom@17.0.2/umd/react-dom.development.js',

    'prop-types': 'npm:prop-types/prop-types.js',

    'rrule': 'npm:rrule@2.6.4/dist/es5/rrule.js',

    'luxon': 'npm:luxon@3.4.4/build/global/luxon.min.js',

    'es6-object-assign': 'npm:es6-object-assign',

    'devextreme': 'npm:devextreme@24.2.6/cjs',

    'devextreme-react': 'npm:devextreme-react@24.2.6/cjs',

    'devextreme-quill': 'npm:devextreme-quill@1.7.1/dist/dx-quill.min.js',

    'devexpress-diagram': 'npm:devexpress-diagram@2.2.15/dist/dx-diagram.js',

    'devexpress-gantt': 'npm:devexpress-gantt@4.1.60/dist/dx-gantt.js',

    '@devextreme/runtime': 'npm:@devextreme/runtime@3.0.12',

    'inferno': 'npm:inferno@7.4.11/dist/inferno.min.js',

    'inferno-compat': 'npm:inferno-compat/dist/inferno-compat.min.js',

    'inferno-create-element': 'npm:inferno-create-element@7.4.11/dist/inferno-create-element.min.js',

    'inferno-dom': 'npm:inferno-dom/dist/inferno-dom.min.js',

    'inferno-hydrate': 'npm:inferno-hydrate/dist/inferno-hydrate.min.js',

    'inferno-clone-vnode': 'npm:inferno-clone-vnode/dist/inferno-clone-vnode.min.js',

    'inferno-create-class': 'npm:inferno-create-class/dist/inferno-create-class.min.js',

    'inferno-extras': 'npm:inferno-extras/dist/inferno-extras.min.js',

    'devextreme-cldr-data': 'npm:devextreme-cldr-data@1.0.3',

    // SystemJS plugins

    'plugin-babel': 'npm:systemjs-plugin-babel@0.0.25/plugin-babel.js',

    'systemjs-babel-build': 'npm:systemjs-plugin-babel@0.0.25/systemjs-babel-browser.js',

    // Prettier

    'prettier/standalone': 'npm:prettier@2.8.8/standalone.js',

    'prettier/parser-html': 'npm:prettier@2.8.8/parser-html.js',

  },

  packages: {

    'devextreme': {

      defaultExtension: 'js',

    },

    'devextreme-react': {

      main: 'index.js',

    },

    'devextreme/events/utils': {

      main: 'index',

    },

    'devextreme/common/core/events/utils': {

      main: 'index',

    },

    'devextreme/localization/messages': {

      format: 'json',

      defaultExtension: 'json',

    },

    'devextreme/events': {

      main: 'index',

    },

    'es6-object-assign': {

      main: './index.js',

      defaultExtension: 'js',

    },

  },

  packageConfigPaths: [

    'npm:@devextreme/*/package.json',

    'npm:@devextreme/runtime@3.0.12/inferno/package.json',

  ],

  babelOptions: {

    sourceMaps: false,

    stage0: true,

    react: true,

  },

};

System.config(window.config);

​

import React from 'react';

import Query from 'devextreme/data/query';

import { moviesData } from './data.js';

​

const getMovieById = (id) => Query(moviesData).filter(['id', id]).toArray()[0];

const AppointmentTemplate = (props) => {

  const { appointmentData } = props.data;

  const movieInfo = getMovieById(appointmentData.movieId) || {};

  return (

    <div className="movie">

      <img

        src={movieInfo.image}

        alt={`${movieInfo.text} poster`}

      />

      <div className="movie-text">{movieInfo.text}</div>

    </div>

  );

};

export default AppointmentTemplate;

​

import React from 'react';

import ReactDOM from 'react-dom';

import App from './App.js';

​

ReactDOM.render(<App />, document.getElementById('app'));

​

export const today = new Date();

today.setHours(0, 0, 0, 0);

today.setDate(today.getDate() - today.getDay() + 3);

export const data = [

  {

    movieId: 1,

    startDate: new Date(today.getTime() - 113.5 * 3600000),

    endDate: new Date(today.getTime() - 111.5 * 3600000),

    recurrenceRule: 'FREQ=HOURLY;INTERVAL=15;COUNT=15',

  },

  {

    movieId: 2,

    startDate: new Date(today.getTime() - 110.5 * 3600000),

    endDate: new Date(today.getTime() - 108.5 * 3600000),

    recurrenceRule: 'FREQ=HOURLY;INTERVAL=15;COUNT=15',

  },

  {

    movieId: 3,

    startDate: new Date(today.getTime() - 106.5 * 3600000),

    endDate: new Date(today.getTime() - 104.5 * 3600000),

    recurrenceRule: 'FREQ=HOURLY;INTERVAL=15;COUNT=15',

  },

  {

    movieId: 4,

    startDate: new Date(today.getTime() - 104 * 3600000),

    endDate: new Date(today.getTime() - 102 * 3600000),

    recurrenceRule: 'FREQ=HOURLY;INTERVAL=15;COUNT=15',

  },

  {

    movieId: 5,

    startDate: new Date(today.getTime() - 101 * 3600000),

    endDate: new Date(today.getTime() - 99 * 3600000),

    recurrenceRule: 'FREQ=HOURLY;INTERVAL=15;COUNT=15',

  },

];

export const moviesData = [

  {

    id: 1,

    text: 'His Girl Friday',

    image: 'images/movies/HisGirlFriday.jpg',

  },

  {

    id: 2,

    text: 'Royal Wedding',

    image: 'images/movies/RoyalWedding.jpg',

  },

  {

    id: 3,

    text: 'A Star Is Born',

    image: 'images/movies/AStartIsBorn.jpg',

  },

  {

    id: 4,

    text: 'The Screaming Skull',

    image: 'images/movies/ScreamingSkull.jpg',

  },

  {

    id: 5,

    text: "It's a Wonderful Life",

    image: 'images/movies/ItsAWonderfulLife.jpg',

  },

];

​

<!DOCTYPE html>

<html lang="en">

  <head>↔</head>

​

  <body class="dx-viewport">

    <div class="demo-container">

      <div id="app"></div>

    </div>

  </body>

</html>

​

.dx-scheduler-appointment {

  color: #000;

  font-weight: 500;

  background-color: #e4e4e4;

}

​

.dx-scheduler-appointment-recurrence .dx-scheduler-appointment-content {

  padding: 5px 0 5px 7px;

}

​

.options {

  background-color: rgba(191, 191, 191, 0.15);

  margin-top: 20px;

  display: flex;

  align-items: flex-start;

}

​

.column {

  width: 40%;

  display: inline-block;

  margin: 15px 3%;

  text-align: left;

  vertical-align: top;

}

​

.option {

  padding: 5px 0;

  display: flex;

  align-items: center;

}

​

.label,

.value {

  display: inline-block;

  vertical-align: middle;

}

​

.label {

  width: 180px;

}

​

.value {

  width: 30%;

}

​

.movie img {

  height: 70px;

}

​

.movie-text {

  font-size: 90%;

  white-space: normal;

}

​

#allow-shading,

#show-indicator {

  height: 36px;

}

​