ReExt - ExtJS Components in React

Unleash the power of Sencha Ext JS components in React

ReExt enables the integration of Sencha Ext JS components into React applications.

It bridges between React and the robust Ext JS framework, allowing you to leverage an extensive library of UI components and tools within your React environment.

Table of Contents

1. ReExt Examples
2. Using the ReExt Designer VS Code Extension (preview version)
3. Quick Start - not using VS Code Extension
4. Step by Step Guide not using VS Code Extension
5. Installation
6. Installing the Sencha ExtJS SDK
7. Aquiring a Licensed Version of Ext JS
8. ReExt Trial Key
9. Documentation
10. Using ExtJS Overrides
11. Using Custom Ext JS Components

ReExt Examples

Examples using classic toolkit and classic theme

Using the ReExt Designer VS Code Extension

(preview version)

The best way to get started with ReExt is to use the ReExt Designer Extension (preview version) in VS Code

Download the ReExt Designer VS Code Extension (preview version)

To install the ReExt Designer Extension (preview version) in VS Code, click on the Extensions Activity Bar item, then click the '...' menu in the upper right corner of the Extensions View, and select 'Install from VSIX...'

Quick Start not using VS Code Extension

(takes less than 1 minute to run)

Note: Quick Start assumes npm is installed. To install npm, install Node.js

The commands can be run all at one time.

MacOS

Copy and paste the commands below into a MacOS terminal window.

Vite

npm create vite@latest reextvite -- --template react-swc
cd reextvite
npm install @sencha/reext@latest
cp node_modules/@sencha/reext/dist/example/App.jsx src/App.jsx
cp node_modules/@sencha/reext/dist/example/main.jsx src/main.jsx
npx vite --open

Create React App

npx create-react-app reextcra
cd reextcra
npm install @sencha/reext@latest
cp node_modules/@sencha/reext/dist/example/App.jsx src/App.js
cp node_modules/@sencha/reext/dist/example/main.jsx src/index.js
npm start

Windows

Copy and paste the commands below into a Windows Command Prompt window.

Vite

npm create vite@latest reextvite -- --template react-swc
cd reextvite
npm install @sencha/reext@latest
xcopy node_modules\@sencha\reext\dist\example\App.jsx src\App.jsx /Y
xcopy node_modules\@sencha\reext\dist\example\main.jsx src\index.js /Y
npx vite --open

Create React App

npx create-react-app reextcra
cd reextcra
npm install @sencha/reext@latest
xcopy node_modules\@sencha\reext\dist\example\App.jsx src\App.js /Y
xcopy node_modules\@sencha\reext\dist\example\main.jsx src\index.js /Y
npm start

Step by Step Guide not using VS Code Extension

Create a React application

create react app

https://create-react-app.dev/docs/getting-started/

npx create-react-app reextcra

vite

https://vitejs.dev/guide/

npm create vite@latest reextvite -- --template react-swc

Installation

Use the package manager npm to install ReExt.

npm install @sencha/reext

Installing the Sencha ExtJS SDK

IMPORTANT-EXTJS FRAMEWORK REQUIREMENT:

ReExt is dependent on Sencha ExtJS, and to run the framework locally you must have the framework installed in the public folder of your React project.

The Quick Start application is configured to run the Sencha ExtJS version 7.8.0 Trial from a remote server.

This is for demo purposes only and is not configured for Licensed development.

A licensed Commercial version of the framework can be acquired from the Sencha Support Portal directly or this can be done using the ReExt Designer VS Code Extension (preview version).

ReExt can be configured to use any commercially available version of the Sencha Ext JS framework (7x and above).

For more information, download the ReExt Designer VS Code Extension (preview version), or contact us at [email protected].

ReExt has been tested with the latest version of the Sencha Ext JS framework, which at the time of this publishing is Sencha ExtJS version 7.8.0.

To purchase a commercial version of Sencha ExtJS, go to https://store.sencha.com/.

Aquiring a Licensed Version of Ext JS

To acquire a licensed version of Ext JS:

1. login to the Sencha Support Portal at https://support.sencha.com/

2. Click the downloads menu on the left side of the page - the Sencha Downloads page will display.

3. Click the 'Downloads' button - the 7.8.0.zip file will be downloaded (which is the latest version of Ext JS).

4. In the file system where the 7.8.0.zip file has been downloaded, unzip the file.

5. A folder named ext-7.8.0 will be created

6. Copy thje ext-7.8.0 folder to the public folder of your React application

7. In the component in your React application, change to the following ("location": "local")

import { ReExtProvider } from '@sencha/reext';

var reactroot = ReactDOM.createRoot(document.getElementById('root'));

var ReExtData = {
  "sdkversion": "7.8.0",
  "toolkit": "classic",
  "theme": "classic",
  "rtl": false,
  "locale": "en",
  "debug": false,
  "urlbase": "./",
  "location": "local"
}
var trialkey = 'trial key from email goes here...'
reactroot.render(
  <ReExtProvider splash={true} ReExtData={ReExtData} reextkey={trialkey}>
    <App />
  </ReExtProvider>
)

ReExt Trial Key

To get a ReExt Trial Key, fill in the form on the dialog that appears when you run a ReExt application. You will be emailed the ReExt Trial Key.

React Version

ReExt has been tested with the latest version of React, which at the time of this publishing is React 18.3.1.

Usage - ReExtProvider:

In main.jsx or index.js you use the ReExtProvider component:

import { ReExtProvider } from '@sencha/reext';

var reactroot = ReactDOM.createRoot(document.getElementById('root'));

var ReExtData = {
  "sdkversion": "7.8.0",
  "toolkit": "classic",
  "theme": "classic",
  "rtl": false,
  "locale": "en",
  "debug": false,
  "urlbase": "./",
  "location": "remote"
}
var trialkey = 'trial key from email goes here...'
reactroot.render(
  <ReExtProvider splash={true} ReExtData={ReExtData} reextkey={trialkey}>
    <App />
  </ReExtProvider>
)

Usage - Example Code:

import React, { useState, useRef } from 'react';
import ReExt from '@sencha/reext';

const App=()=>{
 const [labelcmp, setLabelCmp] = useState(null);
 const labelcmpRef = useRef();
 labelcmpRef.current = labelcmp;
 const [labeltext, setLabelText] = useState('initial text');
 const [row, setRow] = useState(null);

 return (
  <div style={{
   boxSizing:'border-box',height:'100%',
   display:'flex',flexDirection:'column'
  }}>
   <ReExt xtype='logo'/>
   <div style={{display:'flex'}}>
    <ReExt xtype='button'
     config={{text:'click me',width:100,ariaLabel:'demobutton'}}
     onTap={()=>{
      labelcmpRef.current.setHtml('set using method call');
      setLabelText('set using state');
     }}
    />
   </div>
   <ReExt xtype='grid'
    style={{height:300}}
    config={{
     title: 'grid',
     columns: [
      {text:'Name',dataIndex:'name',width:200},
      {text:'Email',dataIndex:'email',flex:1},
      {text:'Phone',dataIndex:'phone',width:200}
     ],
     data: [
      {name:'Lisa',email:'[email protected]',phone:'555-111-1224'},
      {name:'Bart',email:'[email protected]',phone:'555-222-1234'},
      {name:'Homer',email:'[email protected]',phone:'555-333-1244'},
      {name:'Marge',email:'[email protected]',phone:'555-444-1254'}
     ]
    }}
    onSelect={(grid, selected)=>{
     var row = selected[0].data
     setRow(row)
     var rowString = JSON.stringify(row)
     labelcmpRef.current.setHtml(rowString)
     setLabelText(rowString)
    }}
   />
   <div style={{flex:1,padding:20,border:'1px solid gray'}}>
    {row !== null &&
     <>
     <ReExt xtype='label' config={{html: `name: ${row.name}`}}/>
     <ReExt xtype='label' config={{html: `email: ${row.email}`}}/>
     <ReExt xtype='label' config={{html: `phone: ${row.phone}`}}/>
     </>
    }
   </div>
   <div style={{flex:1,padding:20,border:'1px solid gray'}}>
    <ReExt xtype='label'
     config={{html:'initial text'}}
     ready={(cmp)=>{
      setLabelCmp(cmp)
     }}
    />
    <ReExt xtype='label'
     config={{html:labeltext}}
    />
   </div>
  </div>
 )
}
export default App

Run the React application

Create React App

npm start

Vite

npx vite --open

Documentation

The React ReExt Component

The ReExt React component has 5 static props (only xtype is required) and any number of optional event props

Example of a ReExt button

<ReExt xtype='button'
 className='okbutton'
 style={{color:'green'}}
 references={false}
 child={false}
 config={{text:'OK'}}
 ready={(cmp)=>{console.log(cmp)}}
 onTap={(button,e,eOpts)=>{console.log(`${button.text}`)}}
/>

In the above example, here are the links to the ExtJS documentation

• xtype='button'
• config={{text:'click me'}}
• onTap={(button,e,eOpts)=>{console.log(${button.text})}}/a>

More details on the the ReExt props

• xtype (required): the xtype of the component as defined in https://docs.sencha.com/extjs/7.8.0/
• className (optional): the css class to be attached to the parent div of the underlying Ext JS component (each underlying ExtJS component is wrapped with a parent div that is width:'100%' and height: '100%' - unless overwritten in the className or style config)
• style (optional): the css style to be attached to the parent div of the ExtJS component
• references (optional): used if using an Ext JS reference
• child (optional): used if this ReExt component is a child of another ReExt component
• config (optional): a JavaScript object with the configs of the component as defined in https://docs.sencha.com/extjs/7.8.0/
• ready(cmp) (optional): the event that is fired by the ReExt component when the underlying ExtJS component is created. The value of this config is a function in your React hosting component with the parameter being the created ExtJS object.
• storeloaded(store, cmp) (optional): the event that is fired by the ReExt component when the async store associated with the component is loaded.
• 'on' props (optional): a prop that corresponds to an event fired by the ExtJS component; follow the pattern of 'on' with the first letter of the event capitalized. (ie, the button xtype has a tap event, and the corresponding prop is onTap). The value of this prop is a function in your React hosting component.

Documentation for ReExt configs and events

ReExt utilizes the Ext JS framework components by providing a value for the ReExt 'xtype' prop. This prop maps to the xtype in the ExtJS documentation. You can search for any xtype in the upper right corner of the Ext JS documentation page.

For Example <ReExt xtype="button"/> for the classic toolkit maps to this page in the Ext JS 7.8 documentation :

https://docs.sencha.com/extjs/7.8.0/classic/Ext.button.Button.html

configs

The configs tab shows all values valid for the ReExt 'config' prop. <ReExt xtype="button" config={}/>

events

The events tab shows all events - to use, prepend 'on' and capitalize the first letter of the event name:

For example, this page is for the ReExt 'onClick' event <ReExt xtype="button" onClick={()=>{}}/>

https://docs.sencha.com/extjs/7.8.0/classic/Ext.button.Button.html#event-click

methods

The methods tab shows all methods that can be called with the cmp parameter of the ReExt ready event <ReExt xtype="button" ready={(cmp)=>{cmp.setText('new text')}}/>

https://docs.sencha.com/extjs/7.8.0/classic/Ext.button.Button.html#method-setText

Using ExtJS Overrides

To use Ext JS overrides, create a classicoverrides.js or modernoverrides.js in the root of the sdk folder in public (for example: /public/ext-7.8.0/classicoverrides.js)

Include all overrides classes in this file.

also includes overrides=true in ReExtData object (will only work for location = 'local')

var ReExtData = {
    "sdkversion": "7.8.0",
    "toolkit": "classic",
    "theme": "classic",
    "rtl": false,
    "locale:" "en",
    "debug": false,
    "urlbase": "./",
    "location": "local",
    "overrides": true
}

Using Custom Ext JS Components

Here is an example of using custom Ext JS components in your React / Next.js app. (app/layout.js)

'use client';
import { ReExtProvider } from '@sencha/reext';

export default function RootLayout({ children }) {
  var ReExtData = { 
  sdkversion: '7.8.0', 
  toolkit: 'classic', 
  theme: 'classic', 
  urlbase: './', 
  location: 'local' 
  };
  return (
    <html lang="en">
      <body>
          <ReExtProvider ReExtData={ReExtData}>
            {children}
          </ReExtProvider>
      </body>
    </html>
  )
}

Custom ExtJS components can now be added as an import.

in app/personnel/page.js

'use client'
import ReExt from '@sencha/reext';
import { useState, useEffect } from 'react';

export default function Page() {
  const [ready, setReady] = useState(false);
  useEffect(() => {
    const doAsync = async () => {
      try {
        await import('./MainList');
        setReady(true)
      } catch (e) {
        console.error('fail', e)
      }
    }
    doAsync()
  }, []);
  if (!ready) {
    return <div>Loading...</div>
  }
  else {
    return (
      <ReExt xtype='mainlist'
        style={{ flex: 2, border: '1px solid gray' }}
        onSelect={(sender, record) => 
        { 
            console.log('row selected', record[0])
        }}
      />
    )
  }
}

./MainList.jsx

import './PersonnelStore'
Ext.define('ReExt.view.main.List', {
    extend: 'Ext.grid.Panel',
    xtype: 'mainlist',
    store: { type: 'personnel' },
    columns: [
        { text: 'Name', dataIndex: 'name' }
    ]
})

./PersonnelStore.jsx

Ext.define('ReExt.store.Personnel', {
    extend: 'Ext.data.Store',
    alias: 'store.personnel',
    data: { items: [
{name:'Jean Luc',email:"[email protected]",phone:"555-111-1111"},
{name:'Worf',email:"[email protected]",phone:"555-222-2222"},
{name:'Deanna',email:"[email protected]",phone:"555-333-3333"},
{name:'Data',email:"[email protected]",phone:"555-444-4444"}
    ]},
    proxy: {
     type: 'memory',
     reader: {
      type: 'json',
      rootProperty: 'items'
     }
    }
   })

License

Trial