Display BPMN 2.0 Diagrams Using React
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FILE: package.json
================================================
{
"name": "react-bpmn",
"version": "0.2.0",
"description": "Embed BPMN 2.0 diagrams in your React app",
"main": "dist/index.js",
"files": [
"dist",
"src"
],
"scripts": {
"all": "npm run bundle",
"bundle": "cross-env NODE_ENV=production rollup -c --bundleConfigAsCjs",
"prepublishOnly": "npm run bundle",
"postinstall": "cd example && npm install",
"start": "cd example && npm start"
},
"module": "dist/index.esm.js",
"repository": {
"type": "git",
"url": "git+https://github.com/bpmn-io/react-bpmn.git"
},
"keywords": [
"bpmn-js",
"bpmn",
"react-js",
"react"
],
"author": {
"name": "Nico Rehwaldt",
"url": "https://github.com/nikku"
},
"license": "MIT",
"devDependencies": {
"@babel/core": "^7.19.0",
"@babel/preset-env": "^7.19.0",
"@rollup/plugin-babel": "^7.0.0",
"@rollup/plugin-commonjs": "^29.0.0",
"@rollup/plugin-node-resolve": "^16.0.0",
"@rollup/plugin-replace": "^6.0.0",
"babel-preset-react-app": "^10.0.1",
"cross-env": "^10.0.0",
"react": "^19.0.0",
"react-dom": "^19.0.0",
"rollup": "^4.18.0"
}
}
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FILE: renovate.json
================================================
{
"$schema": "https://docs.renovatebot.com/renovate-schema.json",
"extends": [
"github>bpmn-io/renovate-config:recommended"
]
}
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FILE: rollup.config.js
================================================
import pkg from './package.json';
import cjs from '@rollup/plugin-commonjs';
import { babel } from '@rollup/plugin-babel';
import nodeResolve from '@rollup/plugin-node-resolve';
import replace from '@rollup/plugin-replace';
function pgl() {
return [
cjs(),
nodeResolve(),
replace({
'process.env.NODE_ENV': JSON.stringify( 'production' )
}),
babel({
babelrc: false,
babelHelpers: 'runtime',
exclude: 'node_modules/**',
presets: [
['@babel/env', { modules: false }],
'react-app'
]
})
];
}
export default [
{
input: './src/index.jsx',
output: {
name: 'ReactBpmn',
file: `dist/react-bpmn.umd.js`,
format: 'umd'
},
plugins: pgl()
},
{
input: './src/index.jsx',
output: [
{ file: pkg.main, format: 'cjs' },
{ file: pkg.module, format: 'es' }
],
plugins: pgl()
}
];
================================================
FILE: src/index.jsx
================================================
import React from 'react';
import BpmnJS from 'bpmn-js/dist/bpmn-navigated-viewer.production.min.js';
export default class ReactBpmn extends React.Component {
constructor(props) {
super(props);
this.state = { };
this.containerRef = React.createRef();
}
componentDidMount() {
const {
url,
diagramXML
} = this.props;
const container = this.containerRef.current;
this.bpmnViewer = new BpmnJS({ container });
this.bpmnViewer.on('import.done', (event) => {
const {
error,
warnings
} = event;
if (error) {
return this.handleError(error);
}
this.bpmnViewer.get('canvas').zoom('fit-viewport');
return this.handleShown(warnings);
});
if (url) {
return this.fetchDiagram(url);
}
if (diagramXML) {
return this.displayDiagram(diagramXML);
}
}
componentWillUnmount() {
this.bpmnViewer.destroy();
}
componentDidUpdate(prevProps, prevState) {
const {
props,
state
} = this;
if (props.url !== prevProps.url) {
return this.fetchDiagram(props.url);
}
const currentXML = props.diagramXML || state.diagramXML;
const previousXML = prevProps.diagramXML || prevState.diagramXML;
if (currentXML && currentXML !== previousXML) {
return this.displayDiagram(currentXML);
}
}
displayDiagram(diagramXML) {
this.bpmnViewer.importXML(diagramXML);
}
fetchDiagram(url) {
this.handleLoading();
fetch(url)
.then(response => response.text())
.then(text => this.setState({ diagramXML: text }))
.catch(err => this.handleError(err));
}
handleLoading() {
const { onLoading } = this.props;
if (onLoading) {
onLoading();
}
}
handleError(err) {
const { onError } = this.props;
if (onError) {
onError(err);
}
}
handleShown(warnings) {
const { onShown } = this.props;
if (onShown) {
onShown(warnings);
}
}
render() {
return (