├── src
    ├── index.css
    ├── App.test.js
    ├── index.js
    ├── components
    │   ├── SortableList.css
    │   ├── WindowHeight.jsx
    │   ├── Block.jsx
    │   ├── BlockGenerator.jsx
    │   ├── BlockGenerator.css
    │   └── SortableList.jsx
    ├── App.css
    ├── App.jsx
    ├── logo.svg
    └── registerServiceWorker.js
├── public
    ├── favicon.ico
    ├── manifest.json
    └── index.html
├── .gitignore
├── config
    ├── jest
    │   ├── fileTransform.js
    │   └── cssTransform.js
    ├── polyfills.js
    ├── paths.js
    ├── env.js
    ├── webpackDevServer.config.js
    ├── webpack.config.dev.js
    └── webpack.config.prod.js
├── README.md
├── scripts
    ├── test.js
    ├── start.js
    └── build.js
├── LICENSE-MIT
└── package.json


/src/index.css:
--------------------------------------------------------------------------------
1 | body {
2 |   margin: 0;
3 |   padding: 0;
4 |   font-family: sans-serif;
5 | }
6 | 


--------------------------------------------------------------------------------
/public/favicon.ico:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/jmakGH/shopify-draggable-react-example/HEAD/public/favicon.ico


--------------------------------------------------------------------------------
/src/App.test.js:
--------------------------------------------------------------------------------
1 | import React from 'react';
2 | import ReactDOM from 'react-dom';
3 | import App from './App';
4 | 
5 | it('renders without crashing', () => {
6 |   const div = document.createElement('div');
7 |   ReactDOM.render(<App />, div);
8 | });
9 | 


--------------------------------------------------------------------------------
/src/index.js:
--------------------------------------------------------------------------------
1 | import React from 'react';
2 | import ReactDOM from 'react-dom';
3 | import './index.css';
4 | import App from './App';
5 | import registerServiceWorker from './registerServiceWorker';
6 | 
7 | ReactDOM.render(<App />, document.getElementById('root'));
8 | registerServiceWorker();
9 | 


--------------------------------------------------------------------------------
/.gitignore:
--------------------------------------------------------------------------------
 1 | # See https://help.github.com/ignore-files/ for more about ignoring files.
 2 | 
 3 | # dependencies
 4 | /node_modules
 5 | 
 6 | # testing
 7 | /coverage
 8 | 
 9 | # production
10 | /build
11 | 
12 | # misc
13 | .DS_Store
14 | .env.local
15 | .env.development.local
16 | .env.test.local
17 | .env.production.local
18 | 
19 | npm-debug.log*
20 | yarn-debug.log*
21 | yarn-error.log*
22 | 


--------------------------------------------------------------------------------
/config/jest/fileTransform.js:
--------------------------------------------------------------------------------
 1 | 'use strict';
 2 | 
 3 | const path = require('path');
 4 | 
 5 | // This is a custom Jest transformer turning file imports into filenames.
 6 | // http://facebook.github.io/jest/docs/tutorial-webpack.html
 7 | 
 8 | module.exports = {
 9 |   process(src, filename) {
10 |     return `module.exports = ${JSON.stringify(path.basename(filename))};`;
11 |   },
12 | };
13 | 


--------------------------------------------------------------------------------
/public/manifest.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "short_name": "React App",
 3 |   "name": "Create React App Sample",
 4 |   "icons": [
 5 |     {
 6 |       "src": "favicon.ico",
 7 |       "sizes": "64x64 32x32 24x24 16x16",
 8 |       "type": "image/x-icon"
 9 |     }
10 |   ],
11 |   "start_url": "./index.html",
12 |   "display": "standalone",
13 |   "theme_color": "#000000",
14 |   "background_color": "#ffffff"
15 | }
16 | 


--------------------------------------------------------------------------------
/config/jest/cssTransform.js:
--------------------------------------------------------------------------------
 1 | 'use strict';
 2 | 
 3 | // This is a custom Jest transformer turning style imports into empty objects.
 4 | // http://facebook.github.io/jest/docs/tutorial-webpack.html
 5 | 
 6 | module.exports = {
 7 |   process() {
 8 |     return 'module.exports = {};';
 9 |   },
10 |   getCacheKey() {
11 |     // The output is always the same.
12 |     return 'cssTransform';
13 |   },
14 | };
15 | 


--------------------------------------------------------------------------------
/src/components/SortableList.css:
--------------------------------------------------------------------------------
 1 | /**
 2 |  * Hide dragging source element by default.
 3 |  */
 4 | 
 5 | .hideDragSource {
 6 |   opacity: 0;
 7 | }
 8 | 
 9 | /**
10 |  * 1. Grabbing cursor.
11 |  * 2. Reset transition duration to ignore any existing on the source element.
12 |  * 3. Increase z-index to make sure dragged item sits on top of other elements.
13 |  */
14 | 
15 | .defaultMirror {
16 |   cursor: grabbing;
17 |   transition-duration: 0s !important;
18 |   z-index: 10;
19 | }
20 | 


--------------------------------------------------------------------------------
/src/components/WindowHeight.jsx:
--------------------------------------------------------------------------------
 1 | import PropTypes from 'prop-types';
 2 | import { Component } from 'react';
 3 | 
 4 | export default class WindowHeight extends Component {
 5 |   static propTypes = {
 6 |     children: PropTypes.func,
 7 |   }
 8 | 
 9 |   componentDidMount() {
10 |     window.addEventListener('resize', this.rerender);
11 |   }
12 | 
13 |   componentWillUnmount() {
14 |     window.removeEventListener('resize', this.rerender);
15 |   }
16 | 
17 |   rerender = () => {
18 |     this.forceUpdate();
19 |   }
20 | 
21 |   render() {
22 |     return this.props.children({ height: window.innerHeight });
23 |   }
24 | }
25 | 


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | This project was bootstrapped with [Create React App](https://github.com/facebookincubator/create-react-app).
 2 | 
 3 | This is a simple demo to showcase how to integrate Shopify's Draggable library
 4 | with React. Currently the only portion for display is a Sortable example. More
 5 | will continually be added to cover the other parts of the Draggable library.
 6 | 
 7 | Read more about [Draggable](https://github.com/Shopify/draggable).
 8 | 
 9 | ## Demo
10 | 
11 | Checkout the [demo](https://jmakgh.github.io/shopify-draggable-react-example/).
12 | 
13 | ## Getting Started
14 | 
15 | After cloning the repo, all you have to do is run `npm start` and visit `localhost:3000`.
16 | 


--------------------------------------------------------------------------------
/scripts/test.js:
--------------------------------------------------------------------------------
 1 | 'use strict';
 2 | 
 3 | // Do this as the first thing so that any code reading it knows the right env.
 4 | process.env.BABEL_ENV = 'test';
 5 | process.env.NODE_ENV = 'test';
 6 | process.env.PUBLIC_URL = '';
 7 | 
 8 | // Makes the script crash on unhandled rejections instead of silently
 9 | // ignoring them. In the future, promise rejections that are not handled will
10 | // terminate the Node.js process with a non-zero exit code.
11 | process.on('unhandledRejection', err => {
12 |   throw err;
13 | });
14 | 
15 | // Ensure environment variables are read.
16 | require('../config/env');
17 | 
18 | const jest = require('jest');
19 | const argv = process.argv.slice(2);
20 | 
21 | // Watch unless on CI or in coverage mode
22 | if (!process.env.CI && argv.indexOf('--coverage') < 0) {
23 |   argv.push('--watch');
24 | }
25 | 
26 | 
27 | jest.run(argv);
28 | 


--------------------------------------------------------------------------------
/config/polyfills.js:
--------------------------------------------------------------------------------
 1 | 'use strict';
 2 | 
 3 | if (typeof Promise === 'undefined') {
 4 |   // Rejection tracking prevents a common issue where React gets into an
 5 |   // inconsistent state due to an error, but it gets swallowed by a Promise,
 6 |   // and the user has no idea what causes React's erratic future behavior.
 7 |   require('promise/lib/rejection-tracking').enable();
 8 |   window.Promise = require('promise/lib/es6-extensions.js');
 9 | }
10 | 
11 | // fetch() polyfill for making API calls.
12 | require('whatwg-fetch');
13 | 
14 | // Object.assign() is commonly used with React.
15 | // It will use the native implementation if it's present and isn't buggy.
16 | Object.assign = require('object-assign');
17 | 
18 | // In tests, polyfill requestAnimationFrame since jsdom doesn't provide it yet.
19 | // We don't polyfill it in the browser--this is user's responsibility.
20 | if (process.env.NODE_ENV === 'test') {
21 |   require('raf').polyfill(global);
22 | }
23 | 


--------------------------------------------------------------------------------
/src/components/Block.jsx:
--------------------------------------------------------------------------------
 1 | import PropTypes from 'prop-types';
 2 | import React, { PureComponent } from 'react';
 3 | 
 4 | const random255 = () => Math.floor(Math.random() * 256);
 5 | const randomColor = () => `rgb(${random255()}, ${random255()}, ${random255()})`;
 6 | 
 7 | export default class  Block extends PureComponent {
 8 |   static propTypes = {
 9 |     className: PropTypes.string,
10 |     label: PropTypes.oneOfType([PropTypes.number, PropTypes.string]),
11 |   }
12 | 
13 |   static defaultProps = {
14 |     className: '',
15 |     label: '#',
16 |   }
17 | 
18 |   // We'll only generate the background style once when a Block is created.
19 |   constructor(props) {
20 |     super(props);
21 | 
22 |     this.style = { backgroundColor: randomColor() };
23 |   }
24 | 
25 |   render() {
26 |     const { className, label, ...props } = this.props;
27 | 
28 |     return (
29 |       <div
30 |         className={className}
31 |         style={this.style}
32 |         {...props}
33 |       >
34 |         {label}
35 |       </div>
36 |     );
37 |   }
38 | }
39 | 


--------------------------------------------------------------------------------
/LICENSE-MIT:
--------------------------------------------------------------------------------
1 | Copyright 2018 Justin Mak
2 | 
3 | Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
4 | 
5 | The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
6 | 
7 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
8 | 


--------------------------------------------------------------------------------
/src/App.css:
--------------------------------------------------------------------------------
 1 | .App {
 2 |   align-items: center;
 3 |   display: flex;
 4 |   flex-direction: column;
 5 |   text-align: center;
 6 | }
 7 | 
 8 | .App-body {
 9 |   margin: 0 auto;
10 |   max-width: 780px;
11 |   padding-bottom: 40px;
12 | }
13 | 
14 | .App-body-count {
15 |   display: flex;
16 |   flex-wrap: nowrap;
17 |   margin-bottom: 80px;
18 |   margin-top: 40px;
19 | }
20 | 
21 | .App-body-count-text {
22 |   color: #E0E0E0;
23 |   font-size: 60px;
24 |   letter-spacing: -1px;
25 |   margin: 0;
26 |   text-align: left;
27 |   text-transform: uppercase;
28 | }
29 | 
30 | .App-body-count-input {
31 |   border: none;
32 |   color: #E0E0E0;
33 |   font-size: 180px;
34 |   height: 140px;
35 |   letter-spacing: -8px;
36 |   margin-left: 20px;
37 |   outline-color: #212121;
38 |   outline-width: 1px;
39 |   width: 300px;
40 | }
41 | 
42 | /* Hide HTML5 Up and Down arrows. */
43 | input[type="number"]::-webkit-outer-spin-button, input[type="number"]::-webkit-inner-spin-button {
44 |     -webkit-appearance: none;
45 |     margin: 0;
46 | }
47 | 
48 | input[type="number"] {
49 |     -moz-appearance: textfield;
50 | }
51 | 


--------------------------------------------------------------------------------
/public/index.html:
--------------------------------------------------------------------------------
 1 | <!DOCTYPE html>
 2 | <html lang="en">
 3 |   <head>
 4 |     <meta charset="utf-8">
 5 |     <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
 6 |     <meta name="theme-color" content="#000000">
 7 |     <!--
 8 |       manifest.json provides metadata used when your web app is added to the
 9 |       homescreen on Android. See https://developers.google.com/web/fundamentals/engage-and-retain/web-app-manifest/
10 |     -->
11 |     <link rel="manifest" href="%PUBLIC_URL%/manifest.json">
12 |     <link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico">
13 |     <!--
14 |       Notice the use of %PUBLIC_URL% in the tags above.
15 |       It will be replaced with the URL of the `public` folder during the build.
16 |       Only files inside the `public` folder can be referenced from the HTML.
17 | 
18 |       Unlike "/favicon.ico" or "favicon.ico", "%PUBLIC_URL%/favicon.ico" will
19 |       work correctly both with client-side routing and a non-root public URL.
20 |       Learn how to configure a non-root public URL by running `npm run build`.
21 |     -->
22 |     <title>Shopify Draggable Examples</title>
23 |   </head>
24 |   <body>
25 |     <noscript>
26 |       You need to enable JavaScript to run this app.
27 |     </noscript>
28 |     <div id="root"></div>
29 |     <!--
30 |       This HTML file is a template.
31 |       If you open it directly in the browser, you will see an empty page.
32 | 
33 |       You can add webfonts, meta tags, or analytics to this file.
34 |       The build step will place the bundled scripts into the <body> tag.
35 | 
36 |       To begin the development, run `npm start` or `yarn start`.
37 |       To create a production bundle, use `npm run build` or `yarn build`.
38 |     -->
39 |   </body>
40 | </html>
41 | 


--------------------------------------------------------------------------------
/src/App.jsx:
--------------------------------------------------------------------------------
 1 | import React, { Component } from 'react';
 2 | 
 3 | import BlockGenerator from 'components/BlockGenerator';
 4 | import WindowHeight from 'components/WindowHeight';
 5 | import './App.css';
 6 | 
 7 | class App extends Component {
 8 |   state = {
 9 |     blockCount: 14, // Default
10 |   }
11 | 
12 |   onChangeCount = ({ target }) => {
13 |     // Prevent NaN values.
14 |     const value = target.value || 0;
15 | 
16 |     // Clamp value. Setting a max of 100 blocks for now.
17 |     const blockCount = Math.min(Math.max(parseInt(value, 10), 0), 100);
18 | 
19 |     this.setState({ blockCount });
20 |   }
21 | 
22 |   render() {
23 |     const { blockCount } = this.state;
24 | 
25 |     // Generate blocks.
26 |     let blocks = [];
27 | 
28 |     for (let i = 0; i < blockCount; i++) {
29 |       blocks.push(i + 1);
30 |     }
31 | 
32 |     // Use a blank value for 0 in input to prevent leading zeroes such as '01'.
33 |     const inputValue = blockCount > 0 ? blockCount : '';
34 | 
35 |     return (
36 |       <WindowHeight>
37 |         {({ height }) => (
38 |           <div className="App" style={{height}}>
39 |             <div className="App-body">
40 |               <div className="App-body-count">
41 |                 <h1 className="App-body-count-text">
42 |                   Block count:
43 |                 </h1>
44 |                 <input
45 |                   className="App-body-count-input"
46 |                   onChange={this.onChangeCount}
47 |                   type="number"
48 |                   value={inputValue}
49 |                 />
50 |               </div>
51 |               <BlockGenerator blocks={blocks} />
52 |             </div>
53 |           </div>
54 |         )}
55 |       </WindowHeight>
56 |     );
57 |   }
58 | }
59 | 
60 | export default App;
61 | 


--------------------------------------------------------------------------------
/src/components/BlockGenerator.jsx:
--------------------------------------------------------------------------------
 1 | import PropTypes from 'prop-types';
 2 | import React, { Component } from 'react';
 3 | 
 4 | import Block from './Block';
 5 | import SortableList from './SortableList';
 6 | import './BlockGenerator.css';
 7 | 
 8 | /**
 9 |  * Returns a copy of the array with items swapped at the specified indices. This
10 |  * is non-mutative.
11 |  * @param  {Array} arr array
12 |  * @param  {Number} fromIndex
13 |  * @param  {Number} toIndex
14 |  */
15 | const swapAtIndex = (arr, fromIndex, toIndex) => {
16 |   const newArr = arr.slice();
17 |   const val = newArr[fromIndex];
18 | 
19 |   newArr.splice(fromIndex, 1);
20 |   newArr.splice(toIndex, 0, val);
21 | 
22 |   return newArr;
23 | };
24 | 
25 | /**
26 |  * A React component that generates a list of sortable blocks.
27 |  */
28 | export default class BlockGenerator extends Component {
29 |   static propTypes = {
30 |     blocks: PropTypes.array,
31 |   }
32 | 
33 |   static defaultProps = {
34 |     blocks: [],
35 |   }
36 | 
37 |   constructor(props) {
38 |     super(props);
39 | 
40 |     this.state = {
41 |       blocks: props.blocks,
42 |     };
43 |   }
44 | 
45 |   componentWillReceiveProps({ blocks }) {
46 |     if (blocks !== this.props.blocks) {
47 |       this.setState({ blocks });
48 |     }
49 |   }
50 | 
51 |   onSwapBlocks = (oldIndex, newIndex) => {
52 |     this.setState({
53 |       blocks: swapAtIndex(this.state.blocks, oldIndex, newIndex),
54 |     });
55 |   }
56 | 
57 |   render() {
58 |     return (
59 |       <SortableList
60 |         dragClass="Block-dragging"
61 |         draggableSelector=".Block"
62 |         indexAttribute="data-index"
63 |         onSort={this.onSwapBlocks}
64 |       >
65 |         {({ initSortable }) => (
66 |           <div className="BlockGenerator" ref={el => initSortable(el)}>
67 |             {this.state.blocks.map((block, i) => (
68 |               <Block
69 |                 className="Block"
70 |                 data-index={i}
71 |                 key={block}
72 |                 label={block}
73 |               />
74 |             ))}
75 |           </div>
76 |         )}
77 |       </SortableList>
78 |     );
79 |   }
80 | }
81 | 


--------------------------------------------------------------------------------
/config/paths.js:
--------------------------------------------------------------------------------
 1 | 'use strict';
 2 | 
 3 | const path = require('path');
 4 | const fs = require('fs');
 5 | const url = require('url');
 6 | 
 7 | // Make sure any symlinks in the project folder are resolved:
 8 | // https://github.com/facebookincubator/create-react-app/issues/637
 9 | const appDirectory = fs.realpathSync(process.cwd());
10 | const resolveApp = relativePath => path.resolve(appDirectory, relativePath);
11 | 
12 | const envPublicUrl = process.env.PUBLIC_URL;
13 | 
14 | function ensureSlash(path, needsSlash) {
15 |   const hasSlash = path.endsWith('/');
16 |   if (hasSlash && !needsSlash) {
17 |     return path.substr(path, path.length - 1);
18 |   } else if (!hasSlash && needsSlash) {
19 |     return `${path}/`;
20 |   } else {
21 |     return path;
22 |   }
23 | }
24 | 
25 | const getPublicUrl = appPackageJson =>
26 |   envPublicUrl || require(appPackageJson).homepage;
27 | 
28 | // We use `PUBLIC_URL` environment variable or "homepage" field to infer
29 | // "public path" at which the app is served.
30 | // Webpack needs to know it to put the right <script> hrefs into HTML even in
31 | // single-page apps that may serve index.html for nested URLs like /todos/42.
32 | // We can't use a relative path in HTML because we don't want to load something
33 | // like /todos/42/static/js/bundle.7289d.js. We have to know the root.
34 | function getServedPath(appPackageJson) {
35 |   const publicUrl = getPublicUrl(appPackageJson);
36 |   const servedUrl =
37 |     envPublicUrl || (publicUrl ? url.parse(publicUrl).pathname : '/');
38 |   return ensureSlash(servedUrl, true);
39 | }
40 | 
41 | // config after eject: we're in ./config/
42 | module.exports = {
43 |   dotenv: resolveApp('.env'),
44 |   appBuild: resolveApp('build'),
45 |   appPublic: resolveApp('public'),
46 |   appHtml: resolveApp('public/index.html'),
47 |   appIndexJs: resolveApp('src/index.js'),
48 |   appPackageJson: resolveApp('package.json'),
49 |   appSrc: resolveApp('src'),
50 |   yarnLockFile: resolveApp('yarn.lock'),
51 |   testsSetup: resolveApp('src/setupTests.js'),
52 |   appNodeModules: resolveApp('node_modules'),
53 |   publicUrl: getPublicUrl(resolveApp('package.json')),
54 |   servedPath: getServedPath(resolveApp('package.json')),
55 | };
56 | 


--------------------------------------------------------------------------------
/src/components/BlockGenerator.css:
--------------------------------------------------------------------------------
  1 | /**
  2 |  * 1. Use flexbox to setup a list that wraps.
  3 |  * 2. Adjust left margin to re-center blocks.
  4 |  */
  5 | 
  6 | .BlockGenerator {
  7 |   display: flex;
  8 |   flex-wrap: wrap;
  9 |   margin-left: -8px;
 10 | }
 11 | 
 12 | /**
 13 |  * Small gutter between all the generated blocks.
 14 |  */
 15 | 
 16 | .BlockGenerator > * {
 17 |   margin-left: 8px;
 18 |   margin-top: 8px;
 19 | }
 20 | 
 21 | /**
 22 |  * 1. Center content using flexbox.
 23 |  * 2. Grab cursor.
 24 |  * 3. Set relative position to allow absolute positioned children.
 25 |  * 4. Small transition for the hover transform.
 26 |  * 5. Hide overflow to prevent flash circle from showing outside borders.
 27 |  */
 28 | 
 29 | .Block {
 30 |   align-items: center;
 31 |   cursor: grab;
 32 |   display: flex;
 33 |   height: 40px;
 34 |   justify-content: center;
 35 |   overflow: hidden;
 36 |   position: relative;
 37 |   transition: transform 0.3s ease-in-out;
 38 |   width: 100px;
 39 | }
 40 | 
 41 | /**
 42 |  * Slightly raise on hover.
 43 |  */
 44 | 
 45 | .Block:hover {
 46 |   transform: translate(0, -2px);
 47 | }
 48 | 
 49 | /**
 50 |  * Background for drag state.
 51 |  * 1. Set new stacking order so that it sits on top of other content.
 52 |  * 2. Should fill the area of its parent.
 53 |  * 3. Hide by default.
 54 |  */
 55 | 
 56 | .Block:before {
 57 |   background: #BDBDBD;
 58 |   content: '';
 59 |   height: 100%;
 60 |   left: 0;
 61 |   opacity: 0;
 62 |   position: absolute;
 63 |   top: 0;
 64 |   width: 100%;
 65 |   z-index: 1;
 66 | }
 67 | 
 68 | /**
 69 |  * Show background on drag.
 70 |  */
 71 | 
 72 | .Block-dragging:before {
 73 |   opacity: 1;
 74 | }
 75 | 
 76 | /**
 77 |  * Flashing circle in the foreground for drag state.
 78 |  * 1. Set stacking order to sit above :before psuedo element.
 79 |  * 2. Center circle to .Block element.
 80 |  * 3. Pulsate animation.
 81 |  */
 82 | .Block-dragging:after {
 83 |   animation: pulsate 1.5s infinite;
 84 |   background-color: #E0E0E0;
 85 |   border-radius: 50%;
 86 |   content: '';
 87 |   height: 60px;
 88 |   left: 20px;
 89 |   position: absolute;
 90 |   width: 60px;
 91 |   top: -10px;
 92 |   z-index: 2;
 93 | }
 94 | 
 95 | /**
 96 |  * Pulsate animation using opacity change.
 97 |  */
 98 | 
 99 | @keyframes pulsate {
100 |   0, 100% {
101 |     transform: scale(0);
102 |   }
103 | 
104 |   50% {
105 |     transform: scale(1.3);
106 |   }
107 | }
108 | 


--------------------------------------------------------------------------------
/src/logo.svg:
--------------------------------------------------------------------------------
1 | <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 841.9 595.3">
2 |     <g fill="#61DAFB">
3 |         <path d="M666.3 296.5c0-32.5-40.7-63.3-103.1-82.4 14.4-63.6 8-114.2-20.2-130.4-6.5-3.8-14.1-5.6-22.4-5.6v22.3c4.6 0 8.3.9 11.4 2.6 13.6 7.8 19.5 37.5 14.9 75.7-1.1 9.4-2.9 19.3-5.1 29.4-19.6-4.8-41-8.5-63.5-10.9-13.5-18.5-27.5-35.3-41.6-50 32.6-30.3 63.2-46.9 84-46.9V78c-27.5 0-63.5 19.6-99.9 53.6-36.4-33.8-72.4-53.2-99.9-53.2v22.3c20.7 0 51.4 16.5 84 46.6-14 14.7-28 31.4-41.3 49.9-22.6 2.4-44 6.1-63.6 11-2.3-10-4-19.7-5.2-29-4.7-38.2 1.1-67.9 14.6-75.8 3-1.8 6.9-2.6 11.5-2.6V78.5c-8.4 0-16 1.8-22.6 5.6-28.1 16.2-34.4 66.7-19.9 130.1-62.2 19.2-102.7 49.9-102.7 82.3 0 32.5 40.7 63.3 103.1 82.4-14.4 63.6-8 114.2 20.2 130.4 6.5 3.8 14.1 5.6 22.5 5.6 27.5 0 63.5-19.6 99.9-53.6 36.4 33.8 72.4 53.2 99.9 53.2 8.4 0 16-1.8 22.6-5.6 28.1-16.2 34.4-66.7 19.9-130.1 62-19.1 102.5-49.9 102.5-82.3zm-130.2-66.7c-3.7 12.9-8.3 26.2-13.5 39.5-4.1-8-8.4-16-13.1-24-4.6-8-9.5-15.8-14.4-23.4 14.2 2.1 27.9 4.7 41 7.9zm-45.8 106.5c-7.8 13.5-15.8 26.3-24.1 38.2-14.9 1.3-30 2-45.2 2-15.1 0-30.2-.7-45-1.9-8.3-11.9-16.4-24.6-24.2-38-7.6-13.1-14.5-26.4-20.8-39.8 6.2-13.4 13.2-26.8 20.7-39.9 7.8-13.5 15.8-26.3 24.1-38.2 14.9-1.3 30-2 45.2-2 15.1 0 30.2.7 45 1.9 8.3 11.9 16.4 24.6 24.2 38 7.6 13.1 14.5 26.4 20.8 39.8-6.3 13.4-13.2 26.8-20.7 39.9zm32.3-13c5.4 13.4 10 26.8 13.8 39.8-13.1 3.2-26.9 5.9-41.2 8 4.9-7.7 9.8-15.6 14.4-23.7 4.6-8 8.9-16.1 13-24.1zM421.2 430c-9.3-9.6-18.6-20.3-27.8-32 9 .4 18.2.7 27.5.7 9.4 0 18.7-.2 27.8-.7-9 11.7-18.3 22.4-27.5 32zm-74.4-58.9c-14.2-2.1-27.9-4.7-41-7.9 3.7-12.9 8.3-26.2 13.5-39.5 4.1 8 8.4 16 13.1 24 4.7 8 9.5 15.8 14.4 23.4zM420.7 163c9.3 9.6 18.6 20.3 27.8 32-9-.4-18.2-.7-27.5-.7-9.4 0-18.7.2-27.8.7 9-11.7 18.3-22.4 27.5-32zm-74 58.9c-4.9 7.7-9.8 15.6-14.4 23.7-4.6 8-8.9 16-13 24-5.4-13.4-10-26.8-13.8-39.8 13.1-3.1 26.9-5.8 41.2-7.9zm-90.5 125.2c-35.4-15.1-58.3-34.9-58.3-50.6 0-15.7 22.9-35.6 58.3-50.6 8.6-3.7 18-7 27.7-10.1 5.7 19.6 13.2 40 22.5 60.9-9.2 20.8-16.6 41.1-22.2 60.6-9.9-3.1-19.3-6.5-28-10.2zM310 490c-13.6-7.8-19.5-37.5-14.9-75.7 1.1-9.4 2.9-19.3 5.1-29.4 19.6 4.8 41 8.5 63.5 10.9 13.5 18.5 27.5 35.3 41.6 50-32.6 30.3-63.2 46.9-84 46.9-4.5-.1-8.3-1-11.3-2.7zm237.2-76.2c4.7 38.2-1.1 67.9-14.6 75.8-3 1.8-6.9 2.6-11.5 2.6-20.7 0-51.4-16.5-84-46.6 14-14.7 28-31.4 41.3-49.9 22.6-2.4 44-6.1 63.6-11 2.3 10.1 4.1 19.8 5.2 29.1zm38.5-66.7c-8.6 3.7-18 7-27.7 10.1-5.7-19.6-13.2-40-22.5-60.9 9.2-20.8 16.6-41.1 22.2-60.6 9.9 3.1 19.3 6.5 28.1 10.2 35.4 15.1 58.3 34.9 58.3 50.6-.1 15.7-23 35.6-58.4 50.6zM320.8 78.4z"/>
4 |         <circle cx="420.9" cy="296.5" r="45.7"/>
5 |         <path d="M520.5 78.1z"/>
6 |     </g>
7 | </svg>
8 | 


--------------------------------------------------------------------------------
/package.json:
--------------------------------------------------------------------------------
  1 | {
  2 |   "name": "drag-react",
  3 |   "version": "0.1.0",
  4 |   "licenses": [
  5 |     {
  6 |       "type": "MIT",
  7 |       "url": "https://github.com/jmakGH/shopify-draggable-react-example/blob/master/LICENSE-MIT"
  8 |     }
  9 |   ],
 10 |   "homepage": "http://jmakGH.github.io/shopify-draggable-react-example",
 11 |   "dependencies": {
 12 |     "@shopify/draggable": "^1.0.0-beta.3",
 13 |     "autoprefixer": "7.1.6",
 14 |     "babel-core": "6.26.0",
 15 |     "babel-eslint": "7.2.3",
 16 |     "babel-jest": "20.0.3",
 17 |     "babel-loader": "7.1.2",
 18 |     "babel-preset-react-app": "^3.1.0",
 19 |     "babel-runtime": "6.26.0",
 20 |     "case-sensitive-paths-webpack-plugin": "2.1.1",
 21 |     "chalk": "1.1.3",
 22 |     "css-loader": "0.28.7",
 23 |     "dotenv": "4.0.0",
 24 |     "eslint": "4.18.2",
 25 |     "eslint-config-react-app": "^2.0.1",
 26 |     "eslint-loader": "1.9.0",
 27 |     "eslint-plugin-flowtype": "2.39.1",
 28 |     "eslint-plugin-import": "2.8.0",
 29 |     "eslint-plugin-jsx-a11y": "5.1.1",
 30 |     "eslint-plugin-react": "7.4.0",
 31 |     "extract-text-webpack-plugin": "3.0.2",
 32 |     "file-loader": "1.1.5",
 33 |     "fs-extra": "3.0.1",
 34 |     "html-webpack-plugin": "2.29.0",
 35 |     "jest": "20.0.4",
 36 |     "object-assign": "4.1.1",
 37 |     "postcss-flexbugs-fixes": "3.2.0",
 38 |     "postcss-loader": "2.0.8",
 39 |     "promise": "8.0.1",
 40 |     "raf": "3.4.0",
 41 |     "react": "^16.1.1",
 42 |     "react-dev-utils": "^4.2.1",
 43 |     "react-dom": "^16.1.1",
 44 |     "react-motion": "^0.5.2",
 45 |     "style-loader": "0.19.0",
 46 |     "sw-precache-webpack-plugin": "0.11.4",
 47 |     "url-loader": "0.6.2",
 48 |     "webpack": "3.8.1",
 49 |     "webpack-dev-server": "2.9.4",
 50 |     "webpack-manifest-plugin": "1.3.2",
 51 |     "whatwg-fetch": "2.0.3"
 52 |   },
 53 |   "scripts": {
 54 |     "start": "node scripts/start.js",
 55 |     "build": "node scripts/build.js",
 56 |     "test": "node scripts/test.js --env=jsdom",
 57 |     "predeploy": "npm run build",
 58 |     "deploy": "gh-pages -d build"
 59 |   },
 60 |   "jest": {
 61 |     "collectCoverageFrom": [
 62 |       "src/**/*.{js,jsx,mjs}"
 63 |     ],
 64 |     "setupFiles": [
 65 |       "<rootDir>/config/polyfills.js"
 66 |     ],
 67 |     "testMatch": [
 68 |       "<rootDir>/src/**/__tests__/**/*.{js,jsx,mjs}",
 69 |       "<rootDir>/src/**/?(*.)(spec|test).{js,jsx,mjs}"
 70 |     ],
 71 |     "testEnvironment": "node",
 72 |     "testURL": "http://localhost",
 73 |     "transform": {
 74 |       "^.+\\.(js|jsx|mjs)$": "<rootDir>/node_modules/babel-jest",
 75 |       "^.+\\.css$": "<rootDir>/config/jest/cssTransform.js",
 76 |       "^(?!.*\\.(js|jsx|mjs|css|json)$)": "<rootDir>/config/jest/fileTransform.js"
 77 |     },
 78 |     "transformIgnorePatterns": [
 79 |       "[/\\\\]node_modules[/\\\\].+\\.(js|jsx|mjs)$"
 80 |     ],
 81 |     "moduleNameMapper": {
 82 |       "^react-native$": "react-native-web"
 83 |     },
 84 |     "moduleFileExtensions": [
 85 |       "web.js",
 86 |       "mjs",
 87 |       "js",
 88 |       "json",
 89 |       "web.jsx",
 90 |       "jsx",
 91 |       "node"
 92 |     ]
 93 |   },
 94 |   "babel": {
 95 |     "presets": [
 96 |       "react-app"
 97 |     ]
 98 |   },
 99 |   "eslintConfig": {
100 |     "extends": "react-app"
101 |   },
102 |   "devDependencies": {
103 |     "gh-pages": "^1.0.0"
104 |   }
105 | }
106 | 


--------------------------------------------------------------------------------
/scripts/start.js:
--------------------------------------------------------------------------------
 1 | 'use strict';
 2 | 
 3 | // Do this as the first thing so that any code reading it knows the right env.
 4 | process.env.BABEL_ENV = 'development';
 5 | process.env.NODE_ENV = 'development';
 6 | 
 7 | // Makes the script crash on unhandled rejections instead of silently
 8 | // ignoring them. In the future, promise rejections that are not handled will
 9 | // terminate the Node.js process with a non-zero exit code.
10 | process.on('unhandledRejection', err => {
11 |   throw err;
12 | });
13 | 
14 | // Ensure environment variables are read.
15 | require('../config/env');
16 | 
17 | const fs = require('fs');
18 | const chalk = require('chalk');
19 | const webpack = require('webpack');
20 | const WebpackDevServer = require('webpack-dev-server');
21 | const clearConsole = require('react-dev-utils/clearConsole');
22 | const checkRequiredFiles = require('react-dev-utils/checkRequiredFiles');
23 | const {
24 |   choosePort,
25 |   createCompiler,
26 |   prepareProxy,
27 |   prepareUrls,
28 | } = require('react-dev-utils/WebpackDevServerUtils');
29 | const openBrowser = require('react-dev-utils/openBrowser');
30 | const paths = require('../config/paths');
31 | const config = require('../config/webpack.config.dev');
32 | const createDevServerConfig = require('../config/webpackDevServer.config');
33 | 
34 | const useYarn = fs.existsSync(paths.yarnLockFile);
35 | const isInteractive = process.stdout.isTTY;
36 | 
37 | // Warn and crash if required files are missing
38 | if (!checkRequiredFiles([paths.appHtml, paths.appIndexJs])) {
39 |   process.exit(1);
40 | }
41 | 
42 | // Tools like Cloud9 rely on this.
43 | const DEFAULT_PORT = parseInt(process.env.PORT, 10) || 3000;
44 | const HOST = process.env.HOST || '0.0.0.0';
45 | 
46 | // We attempt to use the default port but if it is busy, we offer the user to
47 | // run on a different port. `detect()` Promise resolves to the next free port.
48 | choosePort(HOST, DEFAULT_PORT)
49 |   .then(port => {
50 |     if (port == null) {
51 |       // We have not found a port.
52 |       return;
53 |     }
54 |     const protocol = process.env.HTTPS === 'true' ? 'https' : 'http';
55 |     const appName = require(paths.appPackageJson).name;
56 |     const urls = prepareUrls(protocol, HOST, port);
57 |     // Create a webpack compiler that is configured with custom messages.
58 |     const compiler = createCompiler(webpack, config, appName, urls, useYarn);
59 |     // Load proxy config
60 |     const proxySetting = require(paths.appPackageJson).proxy;
61 |     const proxyConfig = prepareProxy(proxySetting, paths.appPublic);
62 |     // Serve webpack assets generated by the compiler over a web sever.
63 |     const serverConfig = createDevServerConfig(
64 |       proxyConfig,
65 |       urls.lanUrlForConfig
66 |     );
67 |     const devServer = new WebpackDevServer(compiler, serverConfig);
68 |     // Launch WebpackDevServer.
69 |     devServer.listen(port, HOST, err => {
70 |       if (err) {
71 |         return console.log(err);
72 |       }
73 |       if (isInteractive) {
74 |         clearConsole();
75 |       }
76 |       console.log(chalk.cyan('Starting the development server...\n'));
77 |       openBrowser(urls.localUrlForBrowser);
78 |     });
79 | 
80 |     ['SIGINT', 'SIGTERM'].forEach(function(sig) {
81 |       process.on(sig, function() {
82 |         devServer.close();
83 |         process.exit();
84 |       });
85 |     });
86 |   })
87 |   .catch(err => {
88 |     if (err && err.message) {
89 |       console.log(err.message);
90 |     }
91 |     process.exit(1);
92 |   });
93 | 


--------------------------------------------------------------------------------
/config/env.js:
--------------------------------------------------------------------------------
 1 | 'use strict';
 2 | 
 3 | const fs = require('fs');
 4 | const path = require('path');
 5 | const paths = require('./paths');
 6 | 
 7 | // Make sure that including paths.js after env.js will read .env variables.
 8 | delete require.cache[require.resolve('./paths')];
 9 | 
10 | const NODE_ENV = process.env.NODE_ENV;
11 | if (!NODE_ENV) {
12 |   throw new Error(
13 |     'The NODE_ENV environment variable is required but was not specified.'
14 |   );
15 | }
16 | 
17 | // https://github.com/bkeepers/dotenv#what-other-env-files-can-i-use
18 | var dotenvFiles = [
19 |   `${paths.dotenv}.${NODE_ENV}.local`,
20 |   `${paths.dotenv}.${NODE_ENV}`,
21 |   // Don't include `.env.local` for `test` environment
22 |   // since normally you expect tests to produce the same
23 |   // results for everyone
24 |   NODE_ENV !== 'test' && `${paths.dotenv}.local`,
25 |   paths.dotenv,
26 | ].filter(Boolean);
27 | 
28 | // Load environment variables from .env* files. Suppress warnings using silent
29 | // if this file is missing. dotenv will never modify any environment variables
30 | // that have already been set.
31 | // https://github.com/motdotla/dotenv
32 | dotenvFiles.forEach(dotenvFile => {
33 |   if (fs.existsSync(dotenvFile)) {
34 |     require('dotenv').config({
35 |       path: dotenvFile,
36 |     });
37 |   }
38 | });
39 | 
40 | // We support resolving modules according to `NODE_PATH`.
41 | // This lets you use absolute paths in imports inside large monorepos:
42 | // https://github.com/facebookincubator/create-react-app/issues/253.
43 | // It works similar to `NODE_PATH` in Node itself:
44 | // https://nodejs.org/api/modules.html#modules_loading_from_the_global_folders
45 | // Note that unlike in Node, only *relative* paths from `NODE_PATH` are honored.
46 | // Otherwise, we risk importing Node.js core modules into an app instead of Webpack shims.
47 | // https://github.com/facebookincubator/create-react-app/issues/1023#issuecomment-265344421
48 | // We also resolve them to make sure all tools using them work consistently.
49 | const appDirectory = fs.realpathSync(process.cwd());
50 | process.env.NODE_PATH = (process.env.NODE_PATH || '')
51 |   .split(path.delimiter)
52 |   .filter(folder => folder && !path.isAbsolute(folder))
53 |   .map(folder => path.resolve(appDirectory, folder))
54 |   .join(path.delimiter);
55 | 
56 | // Grab NODE_ENV and REACT_APP_* environment variables and prepare them to be
57 | // injected into the application via DefinePlugin in Webpack configuration.
58 | const REACT_APP = /^REACT_APP_/i;
59 | 
60 | function getClientEnvironment(publicUrl) {
61 |   const raw = Object.keys(process.env)
62 |     .filter(key => REACT_APP.test(key))
63 |     .reduce(
64 |       (env, key) => {
65 |         env[key] = process.env[key];
66 |         return env;
67 |       },
68 |       {
69 |         // Useful for determining whether we’re running in production mode.
70 |         // Most importantly, it switches React into the correct mode.
71 |         NODE_ENV: process.env.NODE_ENV || 'development',
72 |         // Useful for resolving the correct path to static assets in `public`.
73 |         // For example, <img src={process.env.PUBLIC_URL + '/img/logo.png'} />.
74 |         // This should only be used as an escape hatch. Normally you would put
75 |         // images into the `src` and `import` them in code to get their paths.
76 |         PUBLIC_URL: publicUrl,
77 |       }
78 |     );
79 |   // Stringify all values so we can feed into Webpack DefinePlugin
80 |   const stringified = {
81 |     'process.env': Object.keys(raw).reduce((env, key) => {
82 |       env[key] = JSON.stringify(raw[key]);
83 |       return env;
84 |     }, {}),
85 |   };
86 | 
87 |   return { raw, stringified };
88 | }
89 | 
90 | module.exports = getClientEnvironment;
91 | 


--------------------------------------------------------------------------------
/src/components/SortableList.jsx:
--------------------------------------------------------------------------------
  1 | import { Sortable } from '@shopify/draggable';
  2 | import PropTypes from 'prop-types';
  3 | import { PureComponent } from 'react';
  4 | 
  5 | import './SortableList.css';
  6 | 
  7 | /**
  8 |  * A React component that integrates Shopify's Draggable library. It provides a
  9 |  * method to initialize a list of Sortable objects to its children prop.
 10 |  * @class SortableList
 11 |  * @extends React.PureComponent
 12 |  */
 13 | export default class SortableList extends PureComponent {
 14 |   static propTypes = {
 15 |     children: PropTypes.func.isRequired,
 16 |     /**
 17 |      * CSS class added to element when being dragged.
 18 |      */
 19 |     dragClass: PropTypes.string,
 20 |     /**
 21 |      * CSS selector to identify which elements inside the container should be
 22 |      * draggable.
 23 |      */
 24 |     draggableSelector: PropTypes.string.isRequired,
 25 |     /**
 26 |      * HTML attribute containing the element's index within the collection.
 27 |      */
 28 |     indexAttribute: PropTypes.string,
 29 |     /**
 30 |      * Callback on sort events that will get passed the indices of the elements
 31 |      * that were swapped.
 32 |      */
 33 |     onSort: PropTypes.func,
 34 |   }
 35 | 
 36 |   static defaultProps = {
 37 |     dragClass: 'hideDragSource',
 38 |     indexAttribute: 'data-index',
 39 |     onSort: (sourceIndex, overIndex) => console.log(`A sort event occurred in the wild between index ${sourceIndex} and index ${overIndex}`),
 40 |   }
 41 | 
 42 |   /**
 43 |    * Initializes a list of Sortable objects.
 44 |    * @param  {HTMLElement} containerEl the container element for your list elements
 45 |    */
 46 |   initSortable = (containerEl) => {
 47 |     const { draggableSelector } = this.props;
 48 | 
 49 |     // Ignore if Sortable instance has already been initialized.
 50 |     if (this.sortable) {
 51 |       return;
 52 |     }
 53 | 
 54 |     this.sortable = this.sortable || new Sortable(containerEl, {
 55 |       draggable: draggableSelector,
 56 |       droppable: draggableSelector, // TODO: Move this to options
 57 |     });
 58 | 
 59 |     this.sortable.on('sortable:sorted', this.onDragSorted);
 60 |     this.sortable.on('sortable:stop', this.onDragStop);
 61 |     this.sortable.on('sortable:start', this.onDragStart);
 62 |   }
 63 | 
 64 |   /**
 65 |    * Handler for 'drag:start' events.
 66 |    * @return {Func} event handler
 67 |    */
 68 |   onDragStart = ({ data }) => {
 69 |     const { dragClass } = this.props;
 70 |     const { dragEvent } = data;
 71 |     const { mirror, source } = dragEvent;
 72 | 
 73 |     // Add default class to mirror element.
 74 |     mirror.classList.add('defaultMirror');
 75 | 
 76 |     // Add drag class to the source element.
 77 |     source.classList.add(dragClass);
 78 |   }
 79 | 
 80 |   onDragSorted = ({ data }) => {
 81 |     const { indexAttribute, onSort } = this.props;
 82 |     const { dragEvent } = data;
 83 |     const { over, source } = dragEvent;
 84 | 
 85 |     // Get the indices from the desired HTML attribute in order to pass them to
 86 |     // our callback to update the state in React.
 87 |     const overIndex = over.getAttribute(indexAttribute);
 88 |     const sourceIndex = source.getAttribute(indexAttribute);
 89 | 
 90 |     // We have to update the HTML index attribute for the source element.
 91 |     source.setAttribute(indexAttribute, overIndex);
 92 | 
 93 |     onSort(sourceIndex, overIndex);
 94 |   }
 95 | 
 96 |   /**
 97 |    * Handler for 'drag:stop' events.
 98 |    * @return {Func} event handler
 99 |    */
100 |   onDragStop = ({ data }) => {
101 |     const { dragClass } = this.props;
102 |     const { dragEvent } = data;
103 |     const { source } = dragEvent;
104 | 
105 |     // Remove drag class from source element.
106 |     source.classList.remove(dragClass);
107 |   }
108 | 
109 |   render() {
110 |     return this.props.children({ initSortable: this.initSortable });
111 |   }
112 | }
113 | 


--------------------------------------------------------------------------------
/src/registerServiceWorker.js:
--------------------------------------------------------------------------------
  1 | // In production, we register a service worker to serve assets from local cache.
  2 | 
  3 | // This lets the app load faster on subsequent visits in production, and gives
  4 | // it offline capabilities. However, it also means that developers (and users)
  5 | // will only see deployed updates on the "N+1" visit to a page, since previously
  6 | // cached resources are updated in the background.
  7 | 
  8 | // To learn more about the benefits of this model, read https://goo.gl/KwvDNy.
  9 | // This link also includes instructions on opting out of this behavior.
 10 | 
 11 | const isLocalhost = Boolean(
 12 |   window.location.hostname === 'localhost' ||
 13 |     // [::1] is the IPv6 localhost address.
 14 |     window.location.hostname === '[::1]' ||
 15 |     // 127.0.0.1/8 is considered localhost for IPv4.
 16 |     window.location.hostname.match(
 17 |       /^127(?:\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}$/
 18 |     )
 19 | );
 20 | 
 21 | export default function register() {
 22 |   if (process.env.NODE_ENV === 'production' && 'serviceWorker' in navigator) {
 23 |     // The URL constructor is available in all browsers that support SW.
 24 |     const publicUrl = new URL(process.env.PUBLIC_URL, window.location);
 25 |     if (publicUrl.origin !== window.location.origin) {
 26 |       // Our service worker won't work if PUBLIC_URL is on a different origin
 27 |       // from what our page is served on. This might happen if a CDN is used to
 28 |       // serve assets; see https://github.com/facebookincubator/create-react-app/issues/2374
 29 |       return;
 30 |     }
 31 | 
 32 |     window.addEventListener('load', () => {
 33 |       const swUrl = `${process.env.PUBLIC_URL}/service-worker.js`;
 34 | 
 35 |       if (isLocalhost) {
 36 |         // This is running on localhost. Lets check if a service worker still exists or not.
 37 |         checkValidServiceWorker(swUrl);
 38 |       } else {
 39 |         // Is not local host. Just register service worker
 40 |         registerValidSW(swUrl);
 41 |       }
 42 |     });
 43 |   }
 44 | }
 45 | 
 46 | function registerValidSW(swUrl) {
 47 |   navigator.serviceWorker
 48 |     .register(swUrl)
 49 |     .then(registration => {
 50 |       registration.onupdatefound = () => {
 51 |         const installingWorker = registration.installing;
 52 |         installingWorker.onstatechange = () => {
 53 |           if (installingWorker.state === 'installed') {
 54 |             if (navigator.serviceWorker.controller) {
 55 |               // At this point, the old content will have been purged and
 56 |               // the fresh content will have been added to the cache.
 57 |               // It's the perfect time to display a "New content is
 58 |               // available; please refresh." message in your web app.
 59 |               console.log('New content is available; please refresh.');
 60 |             } else {
 61 |               // At this point, everything has been precached.
 62 |               // It's the perfect time to display a
 63 |               // "Content is cached for offline use." message.
 64 |               console.log('Content is cached for offline use.');
 65 |             }
 66 |           }
 67 |         };
 68 |       };
 69 |     })
 70 |     .catch(error => {
 71 |       console.error('Error during service worker registration:', error);
 72 |     });
 73 | }
 74 | 
 75 | function checkValidServiceWorker(swUrl) {
 76 |   // Check if the service worker can be found. If it can't reload the page.
 77 |   fetch(swUrl)
 78 |     .then(response => {
 79 |       // Ensure service worker exists, and that we really are getting a JS file.
 80 |       if (
 81 |         response.status === 404 ||
 82 |         response.headers.get('content-type').indexOf('javascript') === -1
 83 |       ) {
 84 |         // No service worker found. Probably a different app. Reload the page.
 85 |         navigator.serviceWorker.ready.then(registration => {
 86 |           registration.unregister().then(() => {
 87 |             window.location.reload();
 88 |           });
 89 |         });
 90 |       } else {
 91 |         // Service worker found. Proceed as normal.
 92 |         registerValidSW(swUrl);
 93 |       }
 94 |     })
 95 |     .catch(() => {
 96 |       console.log(
 97 |         'No internet connection found. App is running in offline mode.'
 98 |       );
 99 |     });
100 | }
101 | 
102 | export function unregister() {
103 |   if ('serviceWorker' in navigator) {
104 |     navigator.serviceWorker.ready.then(registration => {
105 |       registration.unregister();
106 |     });
107 |   }
108 | }
109 | 


--------------------------------------------------------------------------------
/scripts/build.js:
--------------------------------------------------------------------------------
  1 | 'use strict';
  2 | 
  3 | // Do this as the first thing so that any code reading it knows the right env.
  4 | process.env.BABEL_ENV = 'production';
  5 | process.env.NODE_ENV = 'production';
  6 | 
  7 | // Makes the script crash on unhandled rejections instead of silently
  8 | // ignoring them. In the future, promise rejections that are not handled will
  9 | // terminate the Node.js process with a non-zero exit code.
 10 | process.on('unhandledRejection', err => {
 11 |   throw err;
 12 | });
 13 | 
 14 | // Ensure environment variables are read.
 15 | require('../config/env');
 16 | 
 17 | const path = require('path');
 18 | const chalk = require('chalk');
 19 | const fs = require('fs-extra');
 20 | const webpack = require('webpack');
 21 | const config = require('../config/webpack.config.prod');
 22 | const paths = require('../config/paths');
 23 | const checkRequiredFiles = require('react-dev-utils/checkRequiredFiles');
 24 | const formatWebpackMessages = require('react-dev-utils/formatWebpackMessages');
 25 | const printHostingInstructions = require('react-dev-utils/printHostingInstructions');
 26 | const FileSizeReporter = require('react-dev-utils/FileSizeReporter');
 27 | const printBuildError = require('react-dev-utils/printBuildError');
 28 | 
 29 | const measureFileSizesBeforeBuild =
 30 |   FileSizeReporter.measureFileSizesBeforeBuild;
 31 | const printFileSizesAfterBuild = FileSizeReporter.printFileSizesAfterBuild;
 32 | const useYarn = fs.existsSync(paths.yarnLockFile);
 33 | 
 34 | // These sizes are pretty large. We'll warn for bundles exceeding them.
 35 | const WARN_AFTER_BUNDLE_GZIP_SIZE = 512 * 1024;
 36 | const WARN_AFTER_CHUNK_GZIP_SIZE = 1024 * 1024;
 37 | 
 38 | // Warn and crash if required files are missing
 39 | if (!checkRequiredFiles([paths.appHtml, paths.appIndexJs])) {
 40 |   process.exit(1);
 41 | }
 42 | 
 43 | // First, read the current file sizes in build directory.
 44 | // This lets us display how much they changed later.
 45 | measureFileSizesBeforeBuild(paths.appBuild)
 46 |   .then(previousFileSizes => {
 47 |     // Remove all content but keep the directory so that
 48 |     // if you're in it, you don't end up in Trash
 49 |     fs.emptyDirSync(paths.appBuild);
 50 |     // Merge with the public folder
 51 |     copyPublicFolder();
 52 |     // Start the webpack build
 53 |     return build(previousFileSizes);
 54 |   })
 55 |   .then(
 56 |     ({ stats, previousFileSizes, warnings }) => {
 57 |       if (warnings.length) {
 58 |         console.log(chalk.yellow('Compiled with warnings.\n'));
 59 |         console.log(warnings.join('\n\n'));
 60 |         console.log(
 61 |           '\nSearch for the ' +
 62 |             chalk.underline(chalk.yellow('keywords')) +
 63 |             ' to learn more about each warning.'
 64 |         );
 65 |         console.log(
 66 |           'To ignore, add ' +
 67 |             chalk.cyan('// eslint-disable-next-line') +
 68 |             ' to the line before.\n'
 69 |         );
 70 |       } else {
 71 |         console.log(chalk.green('Compiled successfully.\n'));
 72 |       }
 73 | 
 74 |       console.log('File sizes after gzip:\n');
 75 |       printFileSizesAfterBuild(
 76 |         stats,
 77 |         previousFileSizes,
 78 |         paths.appBuild,
 79 |         WARN_AFTER_BUNDLE_GZIP_SIZE,
 80 |         WARN_AFTER_CHUNK_GZIP_SIZE
 81 |       );
 82 |       console.log();
 83 | 
 84 |       const appPackage = require(paths.appPackageJson);
 85 |       const publicUrl = paths.publicUrl;
 86 |       const publicPath = config.output.publicPath;
 87 |       const buildFolder = path.relative(process.cwd(), paths.appBuild);
 88 |       printHostingInstructions(
 89 |         appPackage,
 90 |         publicUrl,
 91 |         publicPath,
 92 |         buildFolder,
 93 |         useYarn
 94 |       );
 95 |     },
 96 |     err => {
 97 |       console.log(chalk.red('Failed to compile.\n'));
 98 |       printBuildError(err);
 99 |       process.exit(1);
100 |     }
101 |   );
102 | 
103 | // Create the production build and print the deployment instructions.
104 | function build(previousFileSizes) {
105 |   console.log('Creating an optimized production build...');
106 | 
107 |   let compiler = webpack(config);
108 |   return new Promise((resolve, reject) => {
109 |     compiler.run((err, stats) => {
110 |       if (err) {
111 |         return reject(err);
112 |       }
113 |       const messages = formatWebpackMessages(stats.toJson({}, true));
114 |       if (messages.errors.length) {
115 |         // Only keep the first error. Others are often indicative
116 |         // of the same problem, but confuse the reader with noise.
117 |         if (messages.errors.length > 1) {
118 |           messages.errors.length = 1;
119 |         }
120 |         return reject(new Error(messages.errors.join('\n\n')));
121 |       }
122 |       if (
123 |         process.env.CI &&
124 |         (typeof process.env.CI !== 'string' ||
125 |           process.env.CI.toLowerCase() !== 'false') &&
126 |         messages.warnings.length
127 |       ) {
128 |         console.log(
129 |           chalk.yellow(
130 |             '\nTreating warnings as errors because process.env.CI = true.\n' +
131 |               'Most CI servers set it automatically.\n'
132 |           )
133 |         );
134 |         return reject(new Error(messages.warnings.join('\n\n')));
135 |       }
136 |       return resolve({
137 |         stats,
138 |         previousFileSizes,
139 |         warnings: messages.warnings,
140 |       });
141 |     });
142 |   });
143 | }
144 | 
145 | function copyPublicFolder() {
146 |   fs.copySync(paths.appPublic, paths.appBuild, {
147 |     dereference: true,
148 |     filter: file => file !== paths.appHtml,
149 |   });
150 | }
151 | 


--------------------------------------------------------------------------------
/config/webpackDevServer.config.js:
--------------------------------------------------------------------------------
  1 | 'use strict';
  2 | 
  3 | const errorOverlayMiddleware = require('react-dev-utils/errorOverlayMiddleware');
  4 | const noopServiceWorkerMiddleware = require('react-dev-utils/noopServiceWorkerMiddleware');
  5 | const path = require('path');
  6 | const config = require('./webpack.config.dev');
  7 | const paths = require('./paths');
  8 | 
  9 | const protocol = process.env.HTTPS === 'true' ? 'https' : 'http';
 10 | const host = process.env.HOST || '0.0.0.0';
 11 | 
 12 | module.exports = function(proxy, allowedHost) {
 13 |   return {
 14 |     // WebpackDevServer 2.4.3 introduced a security fix that prevents remote
 15 |     // websites from potentially accessing local content through DNS rebinding:
 16 |     // https://github.com/webpack/webpack-dev-server/issues/887
 17 |     // https://medium.com/webpack/webpack-dev-server-middleware-security-issues-1489d950874a
 18 |     // However, it made several existing use cases such as development in cloud
 19 |     // environment or subdomains in development significantly more complicated:
 20 |     // https://github.com/facebookincubator/create-react-app/issues/2271
 21 |     // https://github.com/facebookincubator/create-react-app/issues/2233
 22 |     // While we're investigating better solutions, for now we will take a
 23 |     // compromise. Since our WDS configuration only serves files in the `public`
 24 |     // folder we won't consider accessing them a vulnerability. However, if you
 25 |     // use the `proxy` feature, it gets more dangerous because it can expose
 26 |     // remote code execution vulnerabilities in backends like Django and Rails.
 27 |     // So we will disable the host check normally, but enable it if you have
 28 |     // specified the `proxy` setting. Finally, we let you override it if you
 29 |     // really know what you're doing with a special environment variable.
 30 |     disableHostCheck:
 31 |       !proxy || process.env.DANGEROUSLY_DISABLE_HOST_CHECK === 'true',
 32 |     // Enable gzip compression of generated files.
 33 |     compress: true,
 34 |     // Silence WebpackDevServer's own logs since they're generally not useful.
 35 |     // It will still show compile warnings and errors with this setting.
 36 |     clientLogLevel: 'none',
 37 |     // By default WebpackDevServer serves physical files from current directory
 38 |     // in addition to all the virtual build products that it serves from memory.
 39 |     // This is confusing because those files won’t automatically be available in
 40 |     // production build folder unless we copy them. However, copying the whole
 41 |     // project directory is dangerous because we may expose sensitive files.
 42 |     // Instead, we establish a convention that only files in `public` directory
 43 |     // get served. Our build script will copy `public` into the `build` folder.
 44 |     // In `index.html`, you can get URL of `public` folder with %PUBLIC_URL%:
 45 |     // <link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico">
 46 |     // In JavaScript code, you can access it with `process.env.PUBLIC_URL`.
 47 |     // Note that we only recommend to use `public` folder as an escape hatch
 48 |     // for files like `favicon.ico`, `manifest.json`, and libraries that are
 49 |     // for some reason broken when imported through Webpack. If you just want to
 50 |     // use an image, put it in `src` and `import` it from JavaScript instead.
 51 |     contentBase: paths.appPublic,
 52 |     // By default files from `contentBase` will not trigger a page reload.
 53 |     watchContentBase: true,
 54 |     // Enable hot reloading server. It will provide /sockjs-node/ endpoint
 55 |     // for the WebpackDevServer client so it can learn when the files were
 56 |     // updated. The WebpackDevServer client is included as an entry point
 57 |     // in the Webpack development configuration. Note that only changes
 58 |     // to CSS are currently hot reloaded. JS changes will refresh the browser.
 59 |     hot: true,
 60 |     // It is important to tell WebpackDevServer to use the same "root" path
 61 |     // as we specified in the config. In development, we always serve from /.
 62 |     publicPath: config.output.publicPath,
 63 |     // WebpackDevServer is noisy by default so we emit custom message instead
 64 |     // by listening to the compiler events with `compiler.plugin` calls above.
 65 |     quiet: true,
 66 |     // Reportedly, this avoids CPU overload on some systems.
 67 |     // https://github.com/facebookincubator/create-react-app/issues/293
 68 |     // src/node_modules is not ignored to support absolute imports
 69 |     // https://github.com/facebookincubator/create-react-app/issues/1065
 70 |     watchOptions: {
 71 |       ignored: new RegExp(
 72 |         `^(?!${path
 73 |           .normalize(paths.appSrc + '/')
 74 |           .replace(/[\\]+/g, '\\\\')}).+[\\\\/]node_modules[\\\\/]`,
 75 |         'g'
 76 |       ),
 77 |     },
 78 |     // Enable HTTPS if the HTTPS environment variable is set to 'true'
 79 |     https: protocol === 'https',
 80 |     host: host,
 81 |     overlay: false,
 82 |     historyApiFallback: {
 83 |       // Paths with dots should still use the history fallback.
 84 |       // See https://github.com/facebookincubator/create-react-app/issues/387.
 85 |       disableDotRule: true,
 86 |     },
 87 |     public: allowedHost,
 88 |     proxy,
 89 |     before(app) {
 90 |       // This lets us open files from the runtime error overlay.
 91 |       app.use(errorOverlayMiddleware());
 92 |       // This service worker file is effectively a 'no-op' that will reset any
 93 |       // previous service worker registered for the same host:port combination.
 94 |       // We do this in development to avoid hitting the production cache if
 95 |       // it used the same host and port.
 96 |       // https://github.com/facebookincubator/create-react-app/issues/2272#issuecomment-302832432
 97 |       app.use(noopServiceWorkerMiddleware());
 98 |     },
 99 |   };
100 | };
101 | 


--------------------------------------------------------------------------------
/config/webpack.config.dev.js:
--------------------------------------------------------------------------------
  1 | 'use strict';
  2 | 
  3 | const autoprefixer = require('autoprefixer');
  4 | const path = require('path');
  5 | const webpack = require('webpack');
  6 | const HtmlWebpackPlugin = require('html-webpack-plugin');
  7 | const CaseSensitivePathsPlugin = require('case-sensitive-paths-webpack-plugin');
  8 | const InterpolateHtmlPlugin = require('react-dev-utils/InterpolateHtmlPlugin');
  9 | const WatchMissingNodeModulesPlugin = require('react-dev-utils/WatchMissingNodeModulesPlugin');
 10 | const eslintFormatter = require('react-dev-utils/eslintFormatter');
 11 | const ModuleScopePlugin = require('react-dev-utils/ModuleScopePlugin');
 12 | const getClientEnvironment = require('./env');
 13 | const paths = require('./paths');
 14 | 
 15 | // Webpack uses `publicPath` to determine where the app is being served from.
 16 | // In development, we always serve from the root. This makes config easier.
 17 | const publicPath = '/';
 18 | // `publicUrl` is just like `publicPath`, but we will provide it to our app
 19 | // as %PUBLIC_URL% in `index.html` and `process.env.PUBLIC_URL` in JavaScript.
 20 | // Omit trailing slash as %PUBLIC_PATH%/xyz looks better than %PUBLIC_PATH%xyz.
 21 | const publicUrl = '';
 22 | // Get environment variables to inject into our app.
 23 | const env = getClientEnvironment(publicUrl);
 24 | 
 25 | // This is the development configuration.
 26 | // It is focused on developer experience and fast rebuilds.
 27 | // The production configuration is different and lives in a separate file.
 28 | module.exports = {
 29 |   // You may want 'eval' instead if you prefer to see the compiled output in DevTools.
 30 |   // See the discussion in https://github.com/facebookincubator/create-react-app/issues/343.
 31 |   devtool: 'cheap-module-source-map',
 32 |   // These are the "entry points" to our application.
 33 |   // This means they will be the "root" imports that are included in JS bundle.
 34 |   // The first two entry points enable "hot" CSS and auto-refreshes for JS.
 35 |   entry: [
 36 |     // We ship a few polyfills by default:
 37 |     require.resolve('./polyfills'),
 38 |     // Include an alternative client for WebpackDevServer. A client's job is to
 39 |     // connect to WebpackDevServer by a socket and get notified about changes.
 40 |     // When you save a file, the client will either apply hot updates (in case
 41 |     // of CSS changes), or refresh the page (in case of JS changes). When you
 42 |     // make a syntax error, this client will display a syntax error overlay.
 43 |     // Note: instead of the default WebpackDevServer client, we use a custom one
 44 |     // to bring better experience for Create React App users. You can replace
 45 |     // the line below with these two lines if you prefer the stock client:
 46 |     // require.resolve('webpack-dev-server/client') + '?/',
 47 |     // require.resolve('webpack/hot/dev-server'),
 48 |     require.resolve('react-dev-utils/webpackHotDevClient'),
 49 |     // Finally, this is your app's code:
 50 |     paths.appIndexJs,
 51 |     // We include the app code last so that if there is a runtime error during
 52 |     // initialization, it doesn't blow up the WebpackDevServer client, and
 53 |     // changing JS code would still trigger a refresh.
 54 |   ],
 55 |   output: {
 56 |     // Add /* filename */ comments to generated require()s in the output.
 57 |     pathinfo: true,
 58 |     // This does not produce a real file. It's just the virtual path that is
 59 |     // served by WebpackDevServer in development. This is the JS bundle
 60 |     // containing code from all our entry points, and the Webpack runtime.
 61 |     filename: 'static/js/bundle.js',
 62 |     // There are also additional JS chunk files if you use code splitting.
 63 |     chunkFilename: 'static/js/[name].chunk.js',
 64 |     // This is the URL that app is served from. We use "/" in development.
 65 |     publicPath: publicPath,
 66 |     // Point sourcemap entries to original disk location (format as URL on Windows)
 67 |     devtoolModuleFilenameTemplate: info =>
 68 |       path.resolve(info.absoluteResourcePath).replace(/\\/g, '/'),
 69 |   },
 70 |   resolve: {
 71 |     // This allows you to set a fallback for where Webpack should look for modules.
 72 |     // We placed these paths second because we want `node_modules` to "win"
 73 |     // if there are any conflicts. This matches Node resolution mechanism.
 74 |     // https://github.com/facebookincubator/create-react-app/issues/253
 75 |     modules: [paths.appSrc, 'node_modules', paths.appNodeModules].concat(
 76 |       // It is guaranteed to exist because we tweak it in `env.js`
 77 |       process.env.NODE_PATH.split(path.delimiter).filter(Boolean)
 78 |     ),
 79 |     // These are the reasonable defaults supported by the Node ecosystem.
 80 |     // We also include JSX as a common component filename extension to support
 81 |     // some tools, although we do not recommend using it, see:
 82 |     // https://github.com/facebookincubator/create-react-app/issues/290
 83 |     // `web` extension prefixes have been added for better support
 84 |     // for React Native Web.
 85 |     extensions: ['.web.js', '.mjs', '.js', '.json', '.web.jsx', '.jsx'],
 86 |     alias: {
 87 | 
 88 |       // Support React Native Web
 89 |       // https://www.smashingmagazine.com/2016/08/a-glimpse-into-the-future-with-react-native-for-web/
 90 |       'react-native': 'react-native-web',
 91 |     },
 92 |     plugins: [
 93 |       // Prevents users from importing files from outside of src/ (or node_modules/).
 94 |       // This often causes confusion because we only process files within src/ with babel.
 95 |       // To fix this, we prevent you from importing files out of src/ -- if you'd like to,
 96 |       // please link the files into your node_modules/ and let module-resolution kick in.
 97 |       // Make sure your source files are compiled, as they will not be processed in any way.
 98 |       new ModuleScopePlugin(paths.appSrc, [paths.appPackageJson]),
 99 |     ],
100 |   },
101 |   module: {
102 |     strictExportPresence: true,
103 |     rules: [
104 |       // TODO: Disable require.ensure as it's not a standard language feature.
105 |       // We are waiting for https://github.com/facebookincubator/create-react-app/issues/2176.
106 |       // { parser: { requireEnsure: false } },
107 | 
108 |       // First, run the linter.
109 |       // It's important to do this before Babel processes the JS.
110 |       {
111 |         test: /\.(js|jsx|mjs)$/,
112 |         enforce: 'pre',
113 |         use: [
114 |           {
115 |             options: {
116 |               formatter: eslintFormatter,
117 |               eslintPath: require.resolve('eslint'),
118 | 
119 |             },
120 |             loader: require.resolve('eslint-loader'),
121 |           },
122 |         ],
123 |         include: paths.appSrc,
124 |       },
125 |       {
126 |         // "oneOf" will traverse all following loaders until one will
127 |         // match the requirements. When no loader matches it will fall
128 |         // back to the "file" loader at the end of the loader list.
129 |         oneOf: [
130 |           // "url" loader works like "file" loader except that it embeds assets
131 |           // smaller than specified limit in bytes as data URLs to avoid requests.
132 |           // A missing `test` is equivalent to a match.
133 |           {
134 |             test: [/\.bmp$/, /\.gif$/, /\.jpe?g$/, /\.png$/],
135 |             loader: require.resolve('url-loader'),
136 |             options: {
137 |               limit: 10000,
138 |               name: 'static/media/[name].[hash:8].[ext]',
139 |             },
140 |           },
141 |           // Process JS with Babel.
142 |           {
143 |             test: /\.(js|jsx|mjs)$/,
144 |             include: paths.appSrc,
145 |             loader: require.resolve('babel-loader'),
146 |             options: {
147 | 
148 |               // This is a feature of `babel-loader` for webpack (not Babel itself).
149 |               // It enables caching results in ./node_modules/.cache/babel-loader/
150 |               // directory for faster rebuilds.
151 |               cacheDirectory: true,
152 |             },
153 |           },
154 |           // "postcss" loader applies autoprefixer to our CSS.
155 |           // "css" loader resolves paths in CSS and adds assets as dependencies.
156 |           // "style" loader turns CSS into JS modules that inject <style> tags.
157 |           // In production, we use a plugin to extract that CSS to a file, but
158 |           // in development "style" loader enables hot editing of CSS.
159 |           {
160 |             test: /\.css$/,
161 |             use: [
162 |               require.resolve('style-loader'),
163 |               {
164 |                 loader: require.resolve('css-loader'),
165 |                 options: {
166 |                   importLoaders: 1,
167 |                 },
168 |               },
169 |               {
170 |                 loader: require.resolve('postcss-loader'),
171 |                 options: {
172 |                   // Necessary for external CSS imports to work
173 |                   // https://github.com/facebookincubator/create-react-app/issues/2677
174 |                   ident: 'postcss',
175 |                   plugins: () => [
176 |                     require('postcss-flexbugs-fixes'),
177 |                     autoprefixer({
178 |                       browsers: [
179 |                         '>1%',
180 |                         'last 4 versions',
181 |                         'Firefox ESR',
182 |                         'not ie < 9', // React doesn't support IE8 anyway
183 |                       ],
184 |                       flexbox: 'no-2009',
185 |                     }),
186 |                   ],
187 |                 },
188 |               },
189 |             ],
190 |           },
191 |           // "file" loader makes sure those assets get served by WebpackDevServer.
192 |           // When you `import` an asset, you get its (virtual) filename.
193 |           // In production, they would get copied to the `build` folder.
194 |           // This loader doesn't use a "test" so it will catch all modules
195 |           // that fall through the other loaders.
196 |           {
197 |             // Exclude `js` files to keep "css" loader working as it injects
198 |             // it's runtime that would otherwise processed through "file" loader.
199 |             // Also exclude `html` and `json` extensions so they get processed
200 |             // by webpacks internal loaders.
201 |             exclude: [/\.js$/, /\.html$/, /\.json$/],
202 |             loader: require.resolve('file-loader'),
203 |             options: {
204 |               name: 'static/media/[name].[hash:8].[ext]',
205 |             },
206 |           },
207 |         ],
208 |       },
209 |       // ** STOP ** Are you adding a new loader?
210 |       // Make sure to add the new loader(s) before the "file" loader.
211 |     ],
212 |   },
213 |   plugins: [
214 |     // Makes some environment variables available in index.html.
215 |     // The public URL is available as %PUBLIC_URL% in index.html, e.g.:
216 |     // <link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico">
217 |     // In development, this will be an empty string.
218 |     new InterpolateHtmlPlugin(env.raw),
219 |     // Generates an `index.html` file with the <script> injected.
220 |     new HtmlWebpackPlugin({
221 |       inject: true,
222 |       template: paths.appHtml,
223 |     }),
224 |     // Add module names to factory functions so they appear in browser profiler.
225 |     new webpack.NamedModulesPlugin(),
226 |     // Makes some environment variables available to the JS code, for example:
227 |     // if (process.env.NODE_ENV === 'development') { ... }. See `./env.js`.
228 |     new webpack.DefinePlugin(env.stringified),
229 |     // This is necessary to emit hot updates (currently CSS only):
230 |     new webpack.HotModuleReplacementPlugin(),
231 |     // Watcher doesn't work well if you mistype casing in a path so we use
232 |     // a plugin that prints an error when you attempt to do this.
233 |     // See https://github.com/facebookincubator/create-react-app/issues/240
234 |     new CaseSensitivePathsPlugin(),
235 |     // If you require a missing module and then `npm install` it, you still have
236 |     // to restart the development server for Webpack to discover it. This plugin
237 |     // makes the discovery automatic so you don't have to restart.
238 |     // See https://github.com/facebookincubator/create-react-app/issues/186
239 |     new WatchMissingNodeModulesPlugin(paths.appNodeModules),
240 |     // Moment.js is an extremely popular library that bundles large locale files
241 |     // by default due to how Webpack interprets its code. This is a practical
242 |     // solution that requires the user to opt into importing specific locales.
243 |     // https://github.com/jmblog/how-to-optimize-momentjs-with-webpack
244 |     // You can remove this if you don't use Moment.js:
245 |     new webpack.IgnorePlugin(/^\.\/locale$/, /moment$/),
246 |   ],
247 |   // Some libraries import Node modules but don't use them in the browser.
248 |   // Tell Webpack to provide empty mocks for them so importing them works.
249 |   node: {
250 |     dgram: 'empty',
251 |     fs: 'empty',
252 |     net: 'empty',
253 |     tls: 'empty',
254 |     child_process: 'empty',
255 |   },
256 |   // Turn off performance hints during development because we don't do any
257 |   // splitting or minification in interest of speed. These warnings become
258 |   // cumbersome.
259 |   performance: {
260 |     hints: false,
261 |   },
262 | };
263 | 


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/config/webpack.config.prod.js:
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  1 | 'use strict';
  2 | 
  3 | const autoprefixer = require('autoprefixer');
  4 | const path = require('path');
  5 | const webpack = require('webpack');
  6 | const HtmlWebpackPlugin = require('html-webpack-plugin');
  7 | const ExtractTextPlugin = require('extract-text-webpack-plugin');
  8 | const ManifestPlugin = require('webpack-manifest-plugin');
  9 | const InterpolateHtmlPlugin = require('react-dev-utils/InterpolateHtmlPlugin');
 10 | const SWPrecacheWebpackPlugin = require('sw-precache-webpack-plugin');
 11 | const eslintFormatter = require('react-dev-utils/eslintFormatter');
 12 | const ModuleScopePlugin = require('react-dev-utils/ModuleScopePlugin');
 13 | const paths = require('./paths');
 14 | const getClientEnvironment = require('./env');
 15 | 
 16 | // Webpack uses `publicPath` to determine where the app is being served from.
 17 | // It requires a trailing slash, or the file assets will get an incorrect path.
 18 | const publicPath = paths.servedPath;
 19 | // Some apps do not use client-side routing with pushState.
 20 | // For these, "homepage" can be set to "." to enable relative asset paths.
 21 | const shouldUseRelativeAssetPaths = publicPath === './';
 22 | // Source maps are resource heavy and can cause out of memory issue for large source files.
 23 | const shouldUseSourceMap = process.env.GENERATE_SOURCEMAP !== 'false';
 24 | // `publicUrl` is just like `publicPath`, but we will provide it to our app
 25 | // as %PUBLIC_URL% in `index.html` and `process.env.PUBLIC_URL` in JavaScript.
 26 | // Omit trailing slash as %PUBLIC_URL%/xyz looks better than %PUBLIC_URL%xyz.
 27 | const publicUrl = publicPath.slice(0, -1);
 28 | // Get environment variables to inject into our app.
 29 | const env = getClientEnvironment(publicUrl);
 30 | 
 31 | // Assert this just to be safe.
 32 | // Development builds of React are slow and not intended for production.
 33 | if (env.stringified['process.env'].NODE_ENV !== '"production"') {
 34 |   throw new Error('Production builds must have NODE_ENV=production.');
 35 | }
 36 | 
 37 | // Note: defined here because it will be used more than once.
 38 | const cssFilename = 'static/css/[name].[contenthash:8].css';
 39 | 
 40 | // ExtractTextPlugin expects the build output to be flat.
 41 | // (See https://github.com/webpack-contrib/extract-text-webpack-plugin/issues/27)
 42 | // However, our output is structured with css, js and media folders.
 43 | // To have this structure working with relative paths, we have to use custom options.
 44 | const extractTextPluginOptions = shouldUseRelativeAssetPaths
 45 |   ? // Making sure that the publicPath goes back to to build folder.
 46 |     { publicPath: Array(cssFilename.split('/').length).join('../') }
 47 |   : {};
 48 | 
 49 | // This is the production configuration.
 50 | // It compiles slowly and is focused on producing a fast and minimal bundle.
 51 | // The development configuration is different and lives in a separate file.
 52 | module.exports = {
 53 |   // Don't attempt to continue if there are any errors.
 54 |   bail: true,
 55 |   // We generate sourcemaps in production. This is slow but gives good results.
 56 |   // You can exclude the *.map files from the build during deployment.
 57 |   devtool: shouldUseSourceMap ? 'source-map' : false,
 58 |   // In production, we only want to load the polyfills and the app code.
 59 |   entry: [require.resolve('./polyfills'), paths.appIndexJs],
 60 |   output: {
 61 |     // The build folder.
 62 |     path: paths.appBuild,
 63 |     // Generated JS file names (with nested folders).
 64 |     // There will be one main bundle, and one file per asynchronous chunk.
 65 |     // We don't currently advertise code splitting but Webpack supports it.
 66 |     filename: 'static/js/[name].[chunkhash:8].js',
 67 |     chunkFilename: 'static/js/[name].[chunkhash:8].chunk.js',
 68 |     // We inferred the "public path" (such as / or /my-project) from homepage.
 69 |     publicPath: publicPath,
 70 |     // Point sourcemap entries to original disk location (format as URL on Windows)
 71 |     devtoolModuleFilenameTemplate: info =>
 72 |       path
 73 |         .relative(paths.appSrc, info.absoluteResourcePath)
 74 |         .replace(/\\/g, '/'),
 75 |   },
 76 |   resolve: {
 77 |     // This allows you to set a fallback for where Webpack should look for modules.
 78 |     // We placed these paths second because we want `node_modules` to "win"
 79 |     // if there are any conflicts. This matches Node resolution mechanism.
 80 |     // https://github.com/facebookincubator/create-react-app/issues/253
 81 |     modules: [paths.appSrc, 'node_modules', paths.appNodeModules].concat(
 82 |       // It is guaranteed to exist because we tweak it in `env.js`
 83 |       process.env.NODE_PATH.split(path.delimiter).filter(Boolean)
 84 |     ),
 85 |     // These are the reasonable defaults supported by the Node ecosystem.
 86 |     // We also include JSX as a common component filename extension to support
 87 |     // some tools, although we do not recommend using it, see:
 88 |     // https://github.com/facebookincubator/create-react-app/issues/290
 89 |     // `web` extension prefixes have been added for better support
 90 |     // for React Native Web.
 91 |     extensions: ['.web.js', '.mjs', '.js', '.json', '.web.jsx', '.jsx'],
 92 |     alias: {
 93 | 
 94 |       // Support React Native Web
 95 |       // https://www.smashingmagazine.com/2016/08/a-glimpse-into-the-future-with-react-native-for-web/
 96 |       'react-native': 'react-native-web',
 97 |     },
 98 |     plugins: [
 99 |       // Prevents users from importing files from outside of src/ (or node_modules/).
100 |       // This often causes confusion because we only process files within src/ with babel.
101 |       // To fix this, we prevent you from importing files out of src/ -- if you'd like to,
102 |       // please link the files into your node_modules/ and let module-resolution kick in.
103 |       // Make sure your source files are compiled, as they will not be processed in any way.
104 |       new ModuleScopePlugin(paths.appSrc, [paths.appPackageJson]),
105 |     ],
106 |   },
107 |   module: {
108 |     strictExportPresence: true,
109 |     rules: [
110 |       // TODO: Disable require.ensure as it's not a standard language feature.
111 |       // We are waiting for https://github.com/facebookincubator/create-react-app/issues/2176.
112 |       // { parser: { requireEnsure: false } },
113 | 
114 |       // First, run the linter.
115 |       // It's important to do this before Babel processes the JS.
116 |       {
117 |         test: /\.(js|jsx|mjs)$/,
118 |         enforce: 'pre',
119 |         use: [
120 |           {
121 |             options: {
122 |               formatter: eslintFormatter,
123 |               eslintPath: require.resolve('eslint'),
124 | 
125 |             },
126 |             loader: require.resolve('eslint-loader'),
127 |           },
128 |         ],
129 |         include: paths.appSrc,
130 |       },
131 |       {
132 |         // "oneOf" will traverse all following loaders until one will
133 |         // match the requirements. When no loader matches it will fall
134 |         // back to the "file" loader at the end of the loader list.
135 |         oneOf: [
136 |           // "url" loader works just like "file" loader but it also embeds
137 |           // assets smaller than specified size as data URLs to avoid requests.
138 |           {
139 |             test: [/\.bmp$/, /\.gif$/, /\.jpe?g$/, /\.png$/],
140 |             loader: require.resolve('url-loader'),
141 |             options: {
142 |               limit: 10000,
143 |               name: 'static/media/[name].[hash:8].[ext]',
144 |             },
145 |           },
146 |           // Process JS with Babel.
147 |           {
148 |             test: /\.(js|jsx|mjs)$/,
149 |             include: paths.appSrc,
150 |             loader: require.resolve('babel-loader'),
151 |             options: {
152 | 
153 |               compact: true,
154 |             },
155 |           },
156 |           // The notation here is somewhat confusing.
157 |           // "postcss" loader applies autoprefixer to our CSS.
158 |           // "css" loader resolves paths in CSS and adds assets as dependencies.
159 |           // "style" loader normally turns CSS into JS modules injecting <style>,
160 |           // but unlike in development configuration, we do something different.
161 |           // `ExtractTextPlugin` first applies the "postcss" and "css" loaders
162 |           // (second argument), then grabs the result CSS and puts it into a
163 |           // separate file in our build process. This way we actually ship
164 |           // a single CSS file in production instead of JS code injecting <style>
165 |           // tags. If you use code splitting, however, any async bundles will still
166 |           // use the "style" loader inside the async code so CSS from them won't be
167 |           // in the main CSS file.
168 |           {
169 |             test: /\.css$/,
170 |             loader: ExtractTextPlugin.extract(
171 |               Object.assign(
172 |                 {
173 |                   fallback: {
174 |                     loader: require.resolve('style-loader'),
175 |                     options: {
176 |                       hmr: false,
177 |                     },
178 |                   },
179 |                   use: [
180 |                     {
181 |                       loader: require.resolve('css-loader'),
182 |                       options: {
183 |                         importLoaders: 1,
184 |                         minimize: true,
185 |                         sourceMap: shouldUseSourceMap,
186 |                       },
187 |                     },
188 |                     {
189 |                       loader: require.resolve('postcss-loader'),
190 |                       options: {
191 |                         // Necessary for external CSS imports to work
192 |                         // https://github.com/facebookincubator/create-react-app/issues/2677
193 |                         ident: 'postcss',
194 |                         plugins: () => [
195 |                           require('postcss-flexbugs-fixes'),
196 |                           autoprefixer({
197 |                             browsers: [
198 |                               '>1%',
199 |                               'last 4 versions',
200 |                               'Firefox ESR',
201 |                               'not ie < 9', // React doesn't support IE8 anyway
202 |                             ],
203 |                             flexbox: 'no-2009',
204 |                           }),
205 |                         ],
206 |                       },
207 |                     },
208 |                   ],
209 |                 },
210 |                 extractTextPluginOptions
211 |               )
212 |             ),
213 |             // Note: this won't work without `new ExtractTextPlugin()` in `plugins`.
214 |           },
215 |           // "file" loader makes sure assets end up in the `build` folder.
216 |           // When you `import` an asset, you get its filename.
217 |           // This loader doesn't use a "test" so it will catch all modules
218 |           // that fall through the other loaders.
219 |           {
220 |             loader: require.resolve('file-loader'),
221 |             // Exclude `js` files to keep "css" loader working as it injects
222 |             // it's runtime that would otherwise processed through "file" loader.
223 |             // Also exclude `html` and `json` extensions so they get processed
224 |             // by webpacks internal loaders.
225 |             exclude: [/\.js$/, /\.html$/, /\.json$/],
226 |             options: {
227 |               name: 'static/media/[name].[hash:8].[ext]',
228 |             },
229 |           },
230 |           // ** STOP ** Are you adding a new loader?
231 |           // Make sure to add the new loader(s) before the "file" loader.
232 |         ],
233 |       },
234 |     ],
235 |   },
236 |   plugins: [
237 |     // Makes some environment variables available in index.html.
238 |     // The public URL is available as %PUBLIC_URL% in index.html, e.g.:
239 |     // <link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico">
240 |     // In production, it will be an empty string unless you specify "homepage"
241 |     // in `package.json`, in which case it will be the pathname of that URL.
242 |     new InterpolateHtmlPlugin(env.raw),
243 |     // Generates an `index.html` file with the <script> injected.
244 |     new HtmlWebpackPlugin({
245 |       inject: true,
246 |       template: paths.appHtml,
247 |       minify: {
248 |         removeComments: true,
249 |         collapseWhitespace: true,
250 |         removeRedundantAttributes: true,
251 |         useShortDoctype: true,
252 |         removeEmptyAttributes: true,
253 |         removeStyleLinkTypeAttributes: true,
254 |         keepClosingSlash: true,
255 |         minifyJS: true,
256 |         minifyCSS: true,
257 |         minifyURLs: true,
258 |       },
259 |     }),
260 |     // Makes some environment variables available to the JS code, for example:
261 |     // if (process.env.NODE_ENV === 'production') { ... }. See `./env.js`.
262 |     // It is absolutely essential that NODE_ENV was set to production here.
263 |     // Otherwise React will be compiled in the very slow development mode.
264 |     new webpack.DefinePlugin(env.stringified),
265 |     // Minify the code.
266 |     new webpack.optimize.UglifyJsPlugin({
267 |       compress: {
268 |         warnings: false,
269 |         // Disabled because of an issue with Uglify breaking seemingly valid code:
270 |         // https://github.com/facebookincubator/create-react-app/issues/2376
271 |         // Pending further investigation:
272 |         // https://github.com/mishoo/UglifyJS2/issues/2011
273 |         comparisons: false,
274 |       },
275 |       mangle: {
276 |         safari10: true,
277 |       },
278 |       output: {
279 |         comments: false,
280 |         // Turned on because emoji and regex is not minified properly using default
281 |         // https://github.com/facebookincubator/create-react-app/issues/2488
282 |         ascii_only: true,
283 |       },
284 |       sourceMap: shouldUseSourceMap,
285 |     }),
286 |     // Note: this won't work without ExtractTextPlugin.extract(..) in `loaders`.
287 |     new ExtractTextPlugin({
288 |       filename: cssFilename,
289 |     }),
290 |     // Generate a manifest file which contains a mapping of all asset filenames
291 |     // to their corresponding output file so that tools can pick it up without
292 |     // having to parse `index.html`.
293 |     new ManifestPlugin({
294 |       fileName: 'asset-manifest.json',
295 |     }),
296 |     // Generate a service worker script that will precache, and keep up to date,
297 |     // the HTML & assets that are part of the Webpack build.
298 |     new SWPrecacheWebpackPlugin({
299 |       // By default, a cache-busting query parameter is appended to requests
300 |       // used to populate the caches, to ensure the responses are fresh.
301 |       // If a URL is already hashed by Webpack, then there is no concern
302 |       // about it being stale, and the cache-busting can be skipped.
303 |       dontCacheBustUrlsMatching: /\.\w{8}\./,
304 |       filename: 'service-worker.js',
305 |       logger(message) {
306 |         if (message.indexOf('Total precache size is') === 0) {
307 |           // This message occurs for every build and is a bit too noisy.
308 |           return;
309 |         }
310 |         if (message.indexOf('Skipping static resource') === 0) {
311 |           // This message obscures real errors so we ignore it.
312 |           // https://github.com/facebookincubator/create-react-app/issues/2612
313 |           return;
314 |         }
315 |         console.log(message);
316 |       },
317 |       minify: true,
318 |       // For unknown URLs, fallback to the index page
319 |       navigateFallback: publicUrl + '/index.html',
320 |       // Ignores URLs starting from /__ (useful for Firebase):
321 |       // https://github.com/facebookincubator/create-react-app/issues/2237#issuecomment-302693219
322 |       navigateFallbackWhitelist: [/^(?!\/__).*/],
323 |       // Don't precache sourcemaps (they're large) and build asset manifest:
324 |       staticFileGlobsIgnorePatterns: [/\.map$/, /asset-manifest\.json$/],
325 |     }),
326 |     // Moment.js is an extremely popular library that bundles large locale files
327 |     // by default due to how Webpack interprets its code. This is a practical
328 |     // solution that requires the user to opt into importing specific locales.
329 |     // https://github.com/jmblog/how-to-optimize-momentjs-with-webpack
330 |     // You can remove this if you don't use Moment.js:
331 |     new webpack.IgnorePlugin(/^\.\/locale$/, /moment$/),
332 |   ],
333 |   // Some libraries import Node modules but don't use them in the browser.
334 |   // Tell Webpack to provide empty mocks for them so importing them works.
335 |   node: {
336 |     dgram: 'empty',
337 |     fs: 'empty',
338 |     net: 'empty',
339 |     tls: 'empty',
340 |     child_process: 'empty',
341 |   },
342 | };
343 | 


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