Backend API
import React, { useCallback, useState, useMemo } from 'react';
import HtmlEditor, { Toolbar, Item, type HtmlEditorTypes } from 'devextreme-react/html-editor';
import Popup from 'devextreme-react/popup';
import { markup } from './data.ts';
const headerValues = [false, 1, 2, 3, 4, 5];
const headerOptions = { inputAttr: { 'aria-label': 'Header' } };
export default function App() {
const [value, setValue] = useState(markup);
const [popupVisible, setPopupVisible] = useState(false);
const customButtonClick = useCallback(() => {
setPopupVisible(true);
}, [setPopupVisible]);
const getToolbarButtonOptions = useMemo(() => ({
text: 'Show markup',
stylingMode: 'text',
onClick: customButtonClick,
}), [customButtonClick]);
const valueChanged = useCallback((e: HtmlEditorTypes.ValueChangedEvent) => {
setValue(e.value);
}, [setValue]);
const popupHiding = useCallback(() => {
setPopupVisible(false);
}, [setPopupVisible]);
return (
<div className="widget-container">
<HtmlEditor value={value} onValueChanged={valueChanged}>
<Toolbar>
<Item name="undo" />
<Item name="redo" />
<Item name="separator" />
<Item name="header" acceptedValues={headerValues} options={headerOptions} />
<Item name="separator" />
<Item name="bold" />
<Item name="italic" />
<Item name="strike" />
<Item name="underline" />
<Item name="separator" />
<Item name="alignLeft" />
<Item name="alignCenter" />
<Item name="alignRight" />
<Item name="alignJustify" />
<Item name="separator" />
<Item widget="dxButton" options={getToolbarButtonOptions} />
</Toolbar>
</HtmlEditor>
<Popup showTitle={true} title="Markup" visible={popupVisible} onHiding={popupHiding} showCloseButton={true}>
<div>{value}</div>
</Popup>
</div>
);
}
import React, { useCallback, useState, useMemo } from 'react';
import HtmlEditor, { Toolbar, Item } from 'devextreme-react/html-editor';
import Popup from 'devextreme-react/popup';
import { markup } from './data.js';
const headerValues = [false, 1, 2, 3, 4, 5];
const headerOptions = { inputAttr: { 'aria-label': 'Header' } };
export default function App() {
const [value, setValue] = useState(markup);
const [popupVisible, setPopupVisible] = useState(false);
const customButtonClick = useCallback(() => {
setPopupVisible(true);
}, [setPopupVisible]);
const getToolbarButtonOptions = useMemo(
() => ({
text: 'Show markup',
stylingMode: 'text',
onClick: customButtonClick,
}),
[customButtonClick],
);
const valueChanged = useCallback(
(e) => {
setValue(e.value);
},
[setValue],
);
const popupHiding = useCallback(() => {
setPopupVisible(false);
}, [setPopupVisible]);
return (
<div className="widget-container">
<HtmlEditor
value={value}
onValueChanged={valueChanged}
>
<Toolbar>
<Item name="undo" />
<Item name="redo" />
<Item name="separator" />
<Item
name="header"
acceptedValues={headerValues}
options={headerOptions}
/>
<Item name="separator" />
<Item name="bold" />
<Item name="italic" />
<Item name="strike" />
<Item name="underline" />
<Item name="separator" />
<Item name="alignLeft" />
<Item name="alignCenter" />
<Item name="alignRight" />
<Item name="alignJustify" />
<Item name="separator" />
<Item
widget="dxButton"
options={getToolbarButtonOptions}
/>
</Toolbar>
</HtmlEditor>
<Popup
showTitle={true}
title="Markup"
visible={popupVisible}
onHiding={popupHiding}
showCloseButton={true}
>
<div>{value}</div>
</Popup>
</div>
);
}
import React from 'react';
import ReactDOM from 'react-dom';
import App from './App.tsx';
ReactDOM.render(
<App />,
document.getElementById('app'),
);
export const markup = `
<h2>
<img src="../../../../images/widgets/HtmlEditor.svg" alt="HtmlEditor">
Formatted Text Editor (HTML Editor)
</h2>
<br>
<p>DevExtreme JavaScript HTML Editor is a client-side WYSIWYG text editor that allows its users to format textual and visual content and store it as HTML.</p>
<p>Supported features:</p>
<ul>
<li>Inline formats:
<ul>
<li><strong>Bold</strong>, <em>italic</em>, <s>strikethrough</s> text formatting</li>
<li>Font, size, color changes (HTML only)</li>
</ul>
</li>
<li>Block formats:
<ul>
<li>Headers</li>
<li>Text alignment</li>
<li>Lists (ordered and unordered)</li>
<li>Code blocks</li>
<li>Quotes</li>
</ul>
</li>
<li>Custom formats</li>
<li>Mail-merge placeholders (for example, %username%)</li>
<li>Adaptive toolbar for working images, links, and color formats</li>
<li>Image upload: drag-and-drop images onto the form, select files from the file system, or specify a URL.</li>
<li>Copy-paste rich content (unsupported formats are removed)</li>
<li>Tables support</li>
</ul>
`;
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://cdn.jsdelivr.net/npm/',
'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@link:../../packages/devextreme/artifacts/npm/devextreme/cjs',
'devextreme-react': 'npm:devextreme-react@link:../../packages/devextreme-react/npm/cjs',
'devextreme-quill': 'npm:devextreme-quill@1.7.6/dist/dx-quill.min.js',
'devexpress-diagram': 'npm:devexpress-diagram@2.2.24/dist/dx-diagram.js',
'devexpress-gantt': 'npm:devexpress-gantt@4.1.64/dist/dx-gantt.js',
'inferno': 'npm:inferno@8.2.3/dist/inferno.min.js',
'inferno-compat': 'npm:inferno-compat/dist/inferno-compat.min.js',
'inferno-create-element': 'npm:inferno-create-element@8.2.3/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',
'@preact/signals-core': 'npm:@preact/signals-core@1.8.0/dist/signals-core.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-react/common': {
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',
],
babelOptions: {
sourceMaps: false,
stage0: true,
react: true,
},
};
System.config(window.config);
// eslint-disable-next-line
const useTgzInCSB = ['openai'];
import React from 'react';
import ReactDOM from 'react-dom';
import App from './App.js';
ReactDOM.render(<App />, document.getElementById('app'));
export const markup = `
<h2>
<img src="../../../../images/widgets/HtmlEditor.svg" alt="HtmlEditor">
Formatted Text Editor (HTML Editor)
</h2>
<br>
<p>DevExtreme JavaScript HTML Editor is a client-side WYSIWYG text editor that allows its users to format textual and visual content and store it as HTML.</p>
<p>Supported features:</p>
<ul>
<li>Inline formats:
<ul>
<li><strong>Bold</strong>, <em>italic</em>, <s>strikethrough</s> text formatting</li>
<li>Font, size, color changes (HTML only)</li>
</ul>
</li>
<li>Block formats:
<ul>
<li>Headers</li>
<li>Text alignment</li>
<li>Lists (ordered and unordered)</li>
<li>Code blocks</li>
<li>Quotes</li>
</ul>
</li>
<li>Custom formats</li>
<li>Mail-merge placeholders (for example, %username%)</li>
<li>Adaptive toolbar for working images, links, and color formats</li>
<li>Image upload: drag-and-drop images onto the form, select files from the file system, or specify a URL.</li>
<li>Copy-paste rich content (unsupported formats are removed)</li>
<li>Tables support</li>
</ul>
`;
<!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/25.1.6/css/dx.light.css" />
<link rel="stylesheet" type="text/css" href="styles.css" />
<script src="https://cdn.jsdelivr.net/npm/core-js@2.6.12/client/shim.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/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>
.dx-htmleditor-content img {
vertical-align: middle;
padding-right: 10px;
}