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Backend API
import React, { useCallback, useState } from 'react';
import { unified } from "unified";
import remarkParse from "remark-parse";
import remarkRehype from "remark-rehype";
import remarkStringify from "remark-stringify";
import rehypeParse from "rehype-parse";
import rehypeRemark from "rehype-remark";
import rehypeStringify from "rehype-stringify";
import HtmlEditor, { Toolbar, Item } from 'devextreme-react/html-editor';
import { markup } from './data.ts';
const headerValues = [false, 1, 2, 3, 4, 5];
const headerOptions = {
inputAttr: {
'aria-label': 'Header',
},
};
const converter = {
toHtml(value) {
const result = unified()
.use(remarkParse)
.use(remarkRehype)
.use(rehypeStringify)
.processSync(value)
.toString();
return result;
},
fromHtml(value) {
const result = unified()
.use(rehypeParse)
.use(rehypeRemark)
.use(remarkStringify)
.processSync(value)
.toString();
return result;
},
};
export default function App() {
const [valueContent, setValueContent] = useState(markup);
const valueChanged = useCallback((e: { value?: string; }) => {
setValueContent(e.value);
}, [setValueContent]);
return (
<div className="widget-container">
<HtmlEditor
converter={converter}
height={300}
defaultValue={valueContent}
onValueChanged={valueChanged}
>
<Toolbar>
<Item name="undo" />
<Item name="redo" />
<Item name="separator" />
<Item name="bold" />
<Item name="italic" />
<Item name="separator" />
<Item name="header" acceptedValues={headerValues} options={headerOptions} />
<Item name="separator" />
<Item name="orderedList" />
<Item name="bulletList" />
</Toolbar>
</HtmlEditor>
<div className="options">
<div className="value-title">
Markdown Preview
</div>
<div className="value-content" tabIndex={0}>
{valueContent}
</div>
</div>
</div>
);
}
import React, { useCallback, useState } from 'react';
import { unified } from 'unified';
import remarkParse from 'remark-parse';
import remarkRehype from 'remark-rehype';
import remarkStringify from 'remark-stringify';
import rehypeParse from 'rehype-parse';
import rehypeRemark from 'rehype-remark';
import rehypeStringify from 'rehype-stringify';
import HtmlEditor, { Toolbar, Item } from 'devextreme-react/html-editor';
import { markup } from './data.js';
const headerValues = [false, 1, 2, 3, 4, 5];
const headerOptions = {
inputAttr: {
'aria-label': 'Header',
},
};
const converter = {
toHtml(value) {
const result = unified()
.use(remarkParse)
.use(remarkRehype)
.use(rehypeStringify)
.processSync(value)
.toString();
return result;
},
fromHtml(value) {
const result = unified()
.use(rehypeParse)
.use(rehypeRemark)
.use(remarkStringify)
.processSync(value)
.toString();
return result;
},
};
export default function App() {
const [valueContent, setValueContent] = useState(markup);
const valueChanged = useCallback(
(e) => {
setValueContent(e.value);
},
[setValueContent],
);
return (
<div className="widget-container">
<HtmlEditor
converter={converter}
height={300}
defaultValue={valueContent}
onValueChanged={valueChanged}
>
<Toolbar>
<Item name="undo" />
<Item name="redo" />
<Item name="separator" />
<Item name="bold" />
<Item name="italic" />
<Item name="separator" />
<Item
name="header"
acceptedValues={headerValues}
options={headerOptions}
/>
<Item name="separator" />
<Item name="orderedList" />
<Item name="bulletList" />
</Toolbar>
</HtmlEditor>
<div className="options">
<div className="value-title">Markdown Preview</div>
<div
className="value-content"
tabIndex={0}
>
{valueContent}
</div>
</div>
</div>
);
}
import React from 'react';
import ReactDOM from 'react-dom';
import App from './App.tsx';
ReactDOM.render(
<App />,
document.getElementById('app'),
);
export const markup = `##  Formatted Text Editor (HTML Editor)
Lists:
1. Use numbers followed by a period for an ordered list.
1. Use a single asterisk for a bullet list.
Formats:
* Enclose a word in single asterisks for *italic*.
* Enclose a word in double asterisks for **bold**.
`;
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@link:../../packages/devextreme/artifacts/npm/devextreme/cjs',
'devextreme-react': 'npm:devextreme-react@link:../../packages/devextreme-react/npm/cjs',
'unified': 'externals:unified/unified.bundle.js',
'remark-parse': 'externals:unified/remark-parse.bundle.js',
'remark-rehype': 'externals:unified/remark-rehype.bundle.js',
'remark-stringify': 'externals:unified/remark-stringify.bundle.js',
'rehype-parse': 'externals:unified/rehype-parse.bundle.js',
'rehype-remark': 'externals:unified/rehype-remark.bundle.js',
'rehype-stringify': 'externals:unified/rehype-stringify.bundle.js',
'devextreme-quill': 'npm:devextreme-quill@1.7.1/dist/dx-quill.min.js',
'devexpress-diagram': 'npm:devexpress-diagram@2.2.5/dist/dx-diagram.js',
'devexpress-gantt': 'npm:devexpress-gantt@4.1.54/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/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'));
export const markup = `##  Formatted Text Editor (HTML Editor)
Lists:
1. Use numbers followed by a period for an ordered list.
1. Use a single asterisk for a bullet list.
Formats:
* Enclose a word in single asterisks for *italic*.
* Enclose a word in double asterisks for **bold**.
`;
<!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>
.dx-htmleditor-content img {
vertical-align: middle;
padding-right: 10px;
margin-bottom: 22px;
}
.value-title {
font-size: var(--dx-font-size-sm);
font-weight: 500;
}
.value-content {
margin-top: 20px;
overflow: auto;
height: 210px;
white-space: pre-wrap;
border: 1px solid var(--dx-color-border);
padding: 16px;
background-color: var(--dx-color-main-bg);
}
.options {
margin-top: 20px;
padding: 20px;
background-color: rgba(191, 191, 191, 0.15);
box-sizing: border-box;
width: 100%;
}