Customization - React Chat

import React, { useState, useCallback } from 'react'; import Chat, { ChatTypes } from 'devextreme-react/chat'; import { MessageEnteredEvent } from 'devextreme/ui/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.ts'; export default function App() { const [messages, setMessages] = useState<ChatTypes.Message[]>(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 }: MessageEnteredEvent) => { 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, { 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' };

import React from 'react'; import ReactDOM from 'react-dom'; import App from './App.js'; ReactDOM.render(<App />, document.getElementById('app'));

<!DOCTYPE html> <html lang="en"> <head> <title>DevExtreme Demo</title> <meta http-equiv="X-UA-Compatible" content="IE=edge" /> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=5.0" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/24.2.3/css/dx.light.css" /> <link rel="stylesheet" type="text/css" href="styles.css" /> <script src="https://unpkg.com/core-js@2.6.12/client/shim.min.js"></script> <script src="https://unpkg.com/systemjs@0.21.3/dist/system.js"></script> <script type="text/javascript" src="config.js"></script> <script type="text/javascript"> System.import("./index.tsx"); </script> </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); }

React Chat - Customization