React Chat - Customization

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

import Chat from 'devextreme-react/chat';

import SelectBox from 'devextreme-react/select-box';

import CheckBox from 'devextreme-react/check-box';

import {

  currentUser,

  messages as initialMessages,

  dayHeaderFormats as headerFormats,

  messageTimestampFormats as messageTimestamps,

  messageTimestampLabel,

  dayHeaderLabel,

} from './data.js';

​

export default function App() {

  const [messages, setMessages] = useState(initialMessages);

  const [showAvatar, setShowAvatar] = useState(true);

  const [showUsername, setShowUsername] = useState(true);

  const [showDayHeaders, setDayHeaders] = useState(true);

  const [dayHeaderFormat, setDayHeaderFormat] = useState(headerFormats[0]);

  const [showMessageTimestamp, setMessageTimestamp] = useState(true);

  const [messageTimestampFormat, setMessageTimestampFormat] = useState(messageTimestamps[0]);

  const [isDisabled, setDisabled] = useState(false);

  const onMessageEntered = useCallback(({ message }) => {

    setMessages((prevMessages) => [...prevMessages, message]);

  }, []);

  return (

    <React.Fragment>

      <div className="chat-container">

        <Chat

          height={710}

          items={messages}

          user={currentUser}

          disabled={isDisabled}

          showAvatar={showAvatar}

          showUserName={showUsername}

          showDayHeaders={showDayHeaders}

          showMessageTimestamp={showMessageTimestamp}

          dayHeaderFormat={dayHeaderFormat}

          messageTimestampFormat={messageTimestampFormat}

          onMessageEntered={onMessageEntered}

        />

      </div>

​

      <div className="options">

        <div className="caption">Options</div>

​

        <div className="option">

          <CheckBox

            text="Avatar"

            value={showAvatar}

            onValueChange={setShowAvatar}

          />

        </div>

​

        <div className="option">

          <CheckBox

            text="User Name"

            value={showUsername}

            onValueChange={setShowUsername}

          />

        </div>

​

        <div className="option-separator"></div>

​

        <div className="option">

          <CheckBox

            text="Day Headers"

            value={showDayHeaders}

            onValueChange={setDayHeaders}

          />

        </div>

​

        <div className="option">

          <span>Day Header Format:</span>

          <SelectBox

            items={headerFormats}

            value={dayHeaderFormat}

            inputAttr={dayHeaderLabel}

            onValueChange={setDayHeaderFormat}

          />

        </div>

​

        <div className="option-separator"></div>

​

        <div className="option">

          <CheckBox

            text="Message Timestamp"

            value={showMessageTimestamp}

            onValueChange={setMessageTimestamp}

          />

        </div>

​

        <div className="option">

          <span>Message Timestamp Format:</span>

          <SelectBox

            items={messageTimestamps}

            value={messageTimestampFormat}

            inputAttr={messageTimestampLabel}

            onValueChange={setMessageTimestampFormat}

          />

        </div>

​

        <div className="option-separator"></div>

​

        <div className="option">

          <CheckBox

            text="Disable Chat"

            value={isDisabled}

            onValueChange={setDisabled}

          />

        </div>

      </div>

    </React.Fragment>

  );

}

​

import React from 'react';

import ReactDOM from 'react-dom';

​

import App from './App.tsx';

​

ReactDOM.render(

  <App />,

  document.getElementById('app'),

);

​

import { ChatTypes } from 'devextreme-react/chat';

​

function getTimestamp(date, offsetMinutes = 0) {

  return date.getTime() + offsetMinutes * 60000;

}

​

const date = new Date();

date.setHours(0, 0, 0, 0);

​

export const currentUser: ChatTypes.User = {

  id: 'c94c0e76-fb49-4b9b-8f07-9f93ed93b4f3',

  name: 'John Doe',

};

​

export const supportAgent: ChatTypes.User = {

  id: 'd16d1a4c-5c67-4e20-b70e-2991c22747c3',

  name: 'Support Agent',

  avatarUrl: 'images/petersmith.png',

};

​

export const messages = [

  {

    timestamp: getTimestamp(date, -9),

    author: supportAgent,

    text: 'Hello, John!\nHow can I assist you today?',

  },

  {

    timestamp: getTimestamp(date, -7),

    author: currentUser,

    text: 'Hi, I\'m having trouble accessing my account.',

  },

  {

    timestamp: getTimestamp(date, -7),

    author: currentUser,

    text: 'It says my password is incorrect.',

  },

  {

    timestamp: getTimestamp(date, -7),

    author: supportAgent,

    text: 'I can help you with that. Can you please confirm your UserID for security purposes?',

  },

  {

    timestamp: getTimestamp(date, 1),

    author: currentUser,

    text: 'john.doe1357',

  },

  {

    timestamp: getTimestamp(date, 1),

    author: supportAgent,

    text: '✅ Instructions to restore access have been sent to the email address associated with your account.',

  },

];

​

export const dayHeaderFormats = ['dd/MM/yyyy', 'dd.MM.yyyy', 'MMMM dd, yyyy', 'EEEE, MMMM dd'];

export const messageTimestampFormats = ['hh:mm a', 'hh:mm:ss a', 'HH:mm', 'HH:mm:ss'];

export const messageTimestampLabel = { 'aria-label': 'Message Timestamp Format' };

export const dayHeaderLabel = { 'aria-label': 'Day Header Format' };

​

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 ReactDOM from 'react-dom';

import App from './App.js';

​

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

​

function getTimestamp(date, offsetMinutes = 0) {

  return date.getTime() + offsetMinutes * 60000;

}

const date = new Date();

date.setHours(0, 0, 0, 0);

export const currentUser = {

  id: 'c94c0e76-fb49-4b9b-8f07-9f93ed93b4f3',

  name: 'John Doe',

};

export const supportAgent = {

  id: 'd16d1a4c-5c67-4e20-b70e-2991c22747c3',

  name: 'Support Agent',

  avatarUrl: 'images/petersmith.png',

};

export const messages = [

  {

    timestamp: getTimestamp(date, -9),

    author: supportAgent,

    text: 'Hello, John!\nHow can I assist you today?',

  },

  {

    timestamp: getTimestamp(date, -7),

    author: currentUser,

    text: "Hi, I'm having trouble accessing my account.",

  },

  {

    timestamp: getTimestamp(date, -7),

    author: currentUser,

    text: 'It says my password is incorrect.',

  },

  {

    timestamp: getTimestamp(date, -7),

    author: supportAgent,

    text: 'I can help you with that. Can you please confirm your UserID for security purposes?',

  },

  {

    timestamp: getTimestamp(date, 1),

    author: currentUser,

    text: 'john.doe1357',

  },

  {

    timestamp: getTimestamp(date, 1),

    author: supportAgent,

    text: '✅ Instructions to restore access have been sent to the email address associated with your account.',

  },

];

export const dayHeaderFormats = ['dd/MM/yyyy', 'dd.MM.yyyy', 'MMMM dd, yyyy', 'EEEE, MMMM dd'];

export const messageTimestampFormats = ['hh:mm a', 'hh:mm:ss a', 'HH:mm', 'HH:mm:ss'];

export const messageTimestampLabel = { 'aria-label': 'Message Timestamp Format' };

export const dayHeaderLabel = { 'aria-label': 'Day Header Format' };

​

<!DOCTYPE html>

<html lang="en">

  <head>↔</head>

​

  <body class="dx-viewport">

    <div class="demo-container">

      <div id="app"></div>

    </div>

  </body>

</html>

​

#app {

  min-width: 720px;

  display: flex;

  gap: 20px;

}

​

.chat-container {

  display: flex;

  flex-grow: 1;

  align-items: center;

  justify-content: center;

}

​

.options {

  padding: 20px;

  display: flex;

  flex-direction: column;

  min-width: 280px;

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

  gap: 16px;

}

​

.dx-chat {

  max-width: 480px;

}

​

.caption {

  font-size: var(--dx-font-size-sm);

  font-weight: 500;

}

​

.option-separator {

  border-bottom: 1px solid var(--dx-color-border);

}

​

.dx-avatar {

  border: 1px solid var(--dx-color-border);

}

​