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Backend API
import React, { useEffect, useRef } from 'react';
import {
Diagram,
Command,
ContextMenu,
ContextToolbox,
Group,
HistoryToolbar,
MainToolbar,
PropertiesPanel,
Tab,
Toolbox,
ViewToolbar,
DiagramTypes,
} from 'devextreme-react/diagram';
import { confirm } from 'devextreme/ui/dialog';
import 'whatwg-fetch';
const pageCommands: DiagramTypes.Command[] = ['pageSize', 'pageOrientation', 'pageColor'];
const menuCommands: DiagramTypes.Command[] = ['bringToFront', 'sendToBack', 'lock', 'unlock'];
function onCustomCommand(e: DiagramTypes.CustomCommandEvent) {
if (e.name === 'clear') {
const result = confirm('Are you sure you want to clear the diagram? This action cannot be undone.', 'Warning');
result.then(
(dialogResult) => {
if (dialogResult) {
e.component.import('');
}
},
);
}
}
export default function App() {
const diagramRef = useRef(null);
useEffect(() => {
const diagram = diagramRef.current.instance();
fetch('../../../../data/diagram-flow.json')
.then((response) => response.json())
.then((json) => {
diagram.import(JSON.stringify(json));
})
.catch(() => {
throw new Error('Data Loading Error');
});
}, []);
return (
<Diagram
id="diagram"
ref={diagramRef}
onCustomCommand={onCustomCommand}
>
<ContextMenu
enabled={true}
commands={menuCommands}
/>
<ContextToolbox
enabled={true}
category="flowchart"
shapeIconsPerRow={5}
width={200}
/>
<PropertiesPanel visibility="visible">
<Tab>
<Group title="Page Properties" commands={pageCommands} />
</Tab>
</PropertiesPanel>
<HistoryToolbar visible={false} />
<ViewToolbar visible={true} />
<MainToolbar visible={true}>
<Command name="undo" />
<Command name="redo" />
<Command name="separator" />
<Command name="fontName" />
<Command name="fontSize" />
<Command name="separator" />
<Command name="bold" />
<Command name="italic" />
<Command name="underline" />
<Command name="separator" />
<Command name="fontColor" />
<Command name="lineColor" />
<Command name="fillColor" />
<Command name="separator" />
<Command name={'clear' as any} icon="clearsquare" text="Clear Diagram" />
</MainToolbar>
<Toolbox
visibility="visible"
showSearch={false}
shapeIconsPerRow={4}
width={220}
>
<Group category="general" title="General" />
<Group category="flowchart" title="Flowchart" expanded={true} />
</Toolbox>
</Diagram>
);
}
import React, { useEffect, useRef } from 'react';
import {
Diagram,
Command,
ContextMenu,
ContextToolbox,
Group,
HistoryToolbar,
MainToolbar,
PropertiesPanel,
Tab,
Toolbox,
ViewToolbar,
} from 'devextreme-react/diagram';
import { confirm } from 'devextreme/ui/dialog';
import 'whatwg-fetch';
const pageCommands = ['pageSize', 'pageOrientation', 'pageColor'];
const menuCommands = ['bringToFront', 'sendToBack', 'lock', 'unlock'];
function onCustomCommand(e) {
if (e.name === 'clear') {
const result = confirm(
'Are you sure you want to clear the diagram? This action cannot be undone.',
'Warning',
);
result.then((dialogResult) => {
if (dialogResult) {
e.component.import('');
}
});
}
}
export default function App() {
const diagramRef = useRef(null);
useEffect(() => {
const diagram = diagramRef.current.instance();
fetch('../../../../data/diagram-flow.json')
.then((response) => response.json())
.then((json) => {
diagram.import(JSON.stringify(json));
})
.catch(() => {
throw new Error('Data Loading Error');
});
}, []);
return (
<Diagram
id="diagram"
ref={diagramRef}
onCustomCommand={onCustomCommand}
>
<ContextMenu
enabled={true}
commands={menuCommands}
/>
<ContextToolbox
enabled={true}
category="flowchart"
shapeIconsPerRow={5}
width={200}
/>
<PropertiesPanel visibility="visible">
<Tab>
<Group
title="Page Properties"
commands={pageCommands}
/>
</Tab>
</PropertiesPanel>
<HistoryToolbar visible={false} />
<ViewToolbar visible={true} />
<MainToolbar visible={true}>
<Command name="undo" />
<Command name="redo" />
<Command name="separator" />
<Command name="fontName" />
<Command name="fontSize" />
<Command name="separator" />
<Command name="bold" />
<Command name="italic" />
<Command name="underline" />
<Command name="separator" />
<Command name="fontColor" />
<Command name="lineColor" />
<Command name="fillColor" />
<Command name="separator" />
<Command
name="clear"
icon="clearsquare"
text="Clear Diagram"
/>
</MainToolbar>
<Toolbox
visibility="visible"
showSearch={false}
shapeIconsPerRow={4}
width={220}
>
<Group
category="general"
title="General"
/>
<Group
category="flowchart"
title="Flowchart"
expanded={true}
/>
</Toolbox>
</Diagram>
);
}
import React from 'react';
import ReactDOM from 'react-dom';
import App from './App.tsx';
ReactDOM.render(
<App />,
document.getElementById('app'),
);
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,
},
},
paths: {
'npm:': 'https://unpkg.com/',
},
defaultExtension: 'js',
map: {
'ts': 'npm:plugin-typescript@4.2.4/lib/plugin.js',
'typescript': 'npm:typescript@4.2.4/lib/typescript.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@15.8.1/prop-types.js',
'whatwg-fetch': 'npm:whatwg-fetch@2.0.4/fetch.js',
'rrule': 'npm:rrule@2.6.4/dist/es5/rrule.js',
'luxon': 'npm:luxon@1.28.1/build/global/luxon.min.js',
'es6-object-assign': 'npm:es6-object-assign@1.1.0',
'devextreme': 'npm:devextreme@24.1.7/cjs',
'devextreme-react': 'npm:devextreme-react@24.1.7/cjs',
'jszip': 'npm:jszip@3.10.1/dist/jszip.min.js',
'devextreme-quill': 'npm:devextreme-quill@1.7.1/dist/dx-quill.min.js',
'devexpress-diagram': 'npm:devexpress-diagram@2.2.13/dist/dx-diagram.js',
'devexpress-gantt': 'npm:devexpress-gantt@4.1.56/dist/dx-gantt.js',
'@devextreme/runtime': 'npm:@devextreme/runtime@3.0.13',
'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@7.4.11/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@3.0.13/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'));
{
"page": {
"width": 8391,
"height": 11907,
"pageWidth": 8391,
"pageHeight": 11906,
"pageLandscape": false,
"gridSize": 180,
"snapToGrid": true
},
"connectors": [{
"key": "116",
"points": [{
"x": 2160,
"y": 1800
}, {
"x": 2160,
"y": 2340
}
],
"zIndex": 0,
"beginItemKey": "107",
"beginConnectionPointIndex": 2,
"endItemKey": "108",
"endConnectionPointIndex": 0
}, {
"key": "117",
"points": [{
"x": 2160,
"y": 3420
}, {
"x": 2160,
"y": 3960
}
],
"zIndex": 0,
"beginItemKey": "108",
"beginConnectionPointIndex": 2,
"endItemKey": "118",
"endConnectionPointIndex": 0
}, {
"key": "122",
"points": [{
"x": 3420,
"y": 4680
}, {
"x": 5760,
"y": 4680
}
],
"zIndex": 0,
"texts": {
"0.45": "No"
},
"beginItemKey": "118",
"beginConnectionPointIndex": 1,
"endItemKey": "121",
"endConnectionPointIndex": 3
}, {
"key": "123",
"points": [{
"x": 6840,
"y": 4140
}, {
"x": 3420,
"y": 2880
}
],
"zIndex": 0,
"beginItemKey": "121",
"beginConnectionPointIndex": 0,
"endItemKey": "108",
"endConnectionPointIndex": 1
}, {
"key": "126",
"points": [{
"x": 3780,
"y": 9180
}, {
"x": 2880,
"y": 10440
}
],
"zIndex": 0,
"texts": {
"0.78": "A popular scenario?"
},
"beginItemKey": "120",
"beginConnectionPointIndex": 3,
"endItemKey": "125",
"endConnectionPointIndex": 0
}, {
"key": "130",
"points": [{
"x": 5220,
"y": 9180
}, {
"x": 6120,
"y": 10440
}
],
"zIndex": 0,
"texts": {
"0.77": "Missing info in\nthe documentation?"
},
"beginItemKey": "120",
"beginConnectionPointIndex": 1,
"endItemKey": "127",
"endConnectionPointIndex": 0
}, {
"key": "132",
"points": [{
"x": 2160,
"y": 5400
}, {
"x": 2160,
"y": 6120
}
],
"zIndex": 0,
"texts": {
"0.47": "Yes"
},
"beginItemKey": "118",
"beginConnectionPointIndex": 2,
"endItemKey": "131",
"endConnectionPointIndex": 0
}, {
"key": "124",
"points": [{
"x": 2160,
"y": 7200
}, {
"x": 4500,
"y": 8820
}
],
"zIndex": 0,
"beginItemKey": "131",
"beginConnectionPointIndex": 2,
"endItemKey": "120",
"endConnectionPointIndex": 0
}, {
"key": "134",
"points": [{
"x": 3420,
"y": 6660
}, {
"x": 5760,
"y": 6660
}
],
"zIndex": 0,
"texts": {
"0.5": "Need developer\nassistance?"
},
"beginItemKey": "131",
"beginConnectionPointIndex": 1,
"endItemKey": "133",
"endConnectionPointIndex": 3
}, {
"key": "135",
"points": [{
"x": 6840,
"y": 7200
}, {
"x": 4500,
"y": 8820
}
],
"zIndex": 0,
"beginItemKey": "133",
"beginConnectionPointIndex": 2,
"endItemKey": "120",
"endConnectionPointIndex": 0
}
],
"shapes": [
{
"key": "107",
"type": "terminator",
"text": "A new ticket",
"x": 1440,
"y": 1080,
"width": 1440,
"height": 720,
"zIndex": 0
},
{
"key": "108",
"type": "process",
"text": "Analyze\nthe issue",
"x": 900,
"y": 2340,
"width": 2520,
"height": 1080,
"zIndex": 0
},
{
"key": "118",
"type": "decision",
"text": "Do we have all\ninformation to\nwork with?",
"x": 900,
"y": 3960,
"width": 2520,
"height": 1440,
"zIndex": 0
},
{
"key": "120",
"type": "terminator",
"text": "Answered",
"x": 3780,
"y": 8640,
"width": 1440,
"height": 720,
"zIndex": 0
},
{
"key": "121",
"type": "process",
"text": "Request additional\ninformation or clarify\nthe scenario",
"x": 5760,
"y": 4140,
"width": 2160,
"height": 1080,
"zIndex": 0
},
{
"key": "125",
"type": "process",
"text": "Prepare an example in\nCode Central",
"x": 1620,
"y": 10440,
"width": 2520,
"height": 1080,
"zIndex": 0
},
{
"key": "127",
"type": "process",
"text": "Update the\ndocumentation",
"x": 4860,
"y": 10440,
"width": 2520,
"height": 1080,
"zIndex": 0
},
{
"key": "131",
"type": "process",
"text": "Process the\nticket",
"x": 900,
"y": 6120,
"width": 2520,
"height": 1080,
"zIndex": 0
},
{
"key": "133",
"type": "process",
"text": "Work with the\nR&D team",
"x": 5760,
"y": 6120,
"width": 2160,
"height": 1080,
"zIndex": 0
},
{
"key": "136",
"type": "text",
"locked": true,
"text": "Ticket Processing Flow",
"x": 360,
"y": 360,
"width": 7740,
"height": 360,
"zIndex": 0,
"styleText": {
"font-size": "14pt",
"font-weight": "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/24.1.7/css/dx-diagram.min.css" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/24.1.7/css/dx.light.css" />
<link rel="stylesheet" type="text/css" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.6.3/css/font-awesome.min.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>
#diagram {
height: 900px;
}