├── tests
    ├── .eslintrc
    └── index-test.js
├── .gitignore
├── src
    ├── utils
    │   ├── isModern.js
    │   ├── states.js
    │   └── loadImage.js
    ├── index.css
    └── index.js
├── nwb.config.js
├── .travis.yml
├── demo
    └── src
    │   ├── index.css
    │   └── index.js
├── CONTRIBUTING.md
├── package.json
└── README.md


/tests/.eslintrc:
--------------------------------------------------------------------------------
1 | {
2 |   "env": {
3 |     "mocha": true
4 |   }
5 | }
6 | 


--------------------------------------------------------------------------------
/.gitignore:
--------------------------------------------------------------------------------
1 | /coverage
2 | /demo/dist
3 | /es
4 | /lib
5 | /node_modules
6 | /umd
7 | npm-debug.log*
8 | **/.DS_Store
9 | 


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/src/utils/isModern.js:
--------------------------------------------------------------------------------
1 | const isModern = window.CSS && CSS.supports && CSS.supports('object-fit', 'cover')
2 | 
3 | export default isModern


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/src/utils/states.js:
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1 | const states = {
2 |     PENDING:  0,
3 |     LOADING:  1,
4 |     LOADED:   2,
5 |     DEAD:     3
6 | }
7 | 
8 | export default states


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/nwb.config.js:
--------------------------------------------------------------------------------
 1 | module.exports = {
 2 |   type: 'react-component',
 3 |   npm: {
 4 |     esModules: true,
 5 |     umd: false
 6 |   },
 7 |   devServer: {
 8 |     port: 1234
 9 |   }
10 | }
11 | 


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/src/utils/loadImage.js:
--------------------------------------------------------------------------------
 1 | export default function loadImage(url) {
 2 |     return new Promise((resolve, reject) => {
 3 |   
 4 |       let image = new Image()
 5 |     
 6 |       image.onload = resolve
 7 |     
 8 |       image.onerror = () => reject(new Error('Error when loading ' + url))
 9 |     
10 |       image.src = url;
11 |   
12 |     })
13 |   }


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/.travis.yml:
--------------------------------------------------------------------------------
 1 | sudo: false
 2 | 
 3 | language: node_js
 4 | node_js:
 5 |   - 8
 6 | 
 7 | before_install:
 8 |   - npm install codecov.io coveralls
 9 | 
10 | after_success:
11 |   - cat ./coverage/lcov.info | ./node_modules/codecov.io/bin/codecov.io.js
12 |   - cat ./coverage/lcov.info | ./node_modules/coveralls/bin/coveralls.js
13 | 
14 | branches:
15 |   only:
16 |     - master
17 | 


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/src/index.css:
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 1 | .FittedImage {
 2 |   width: 100%;
 3 |   height: 100%;
 4 | }
 5 | 
 6 | .FittedImage--contain {
 7 |   object-fit: contain;
 8 | }
 9 | 
10 | .FittedImage--cover {
11 |   object-fit: cover;
12 | }
13 | 
14 | .FittedImage--background {
15 |   background-repeat: no-repeat;
16 |   background-position: center;
17 | }
18 | 
19 | .FittedImage--background .FittedImage--contain {
20 |   background-size: contain;
21 | }
22 | 
23 | .FittedImage--background .FittedImage--cover {
24 |   background-size: cover;
25 | }
26 | 


--------------------------------------------------------------------------------
/demo/src/index.css:
--------------------------------------------------------------------------------
 1 | * {
 2 |   margin: 0;
 3 |   padding: 0;
 4 |   box-sizing: border-box;
 5 | }
 6 | .App {
 7 |   margin: auto;
 8 |   padding: 0.5rem 0;
 9 |   max-width: 50rem;
10 |   height: 100vh;
11 |   display: flex;
12 |   flex-direction: column;
13 | }
14 | .Settings {
15 |   margin-bottom: 0.5rem;
16 |   display: flex;
17 |   flex-direction: row;
18 | }
19 | .Settings > label {
20 |   flex: 1;
21 | }
22 | .Settings > select {
23 |   flex: 4;
24 | }
25 | .Wrapper {
26 |   border: 1px solid #ddd;
27 |   height: 90%;
28 | }
29 | .Loader {
30 |   display: flex;
31 |   justify-content: center;
32 |   align-items: center;
33 |   height: 100%;
34 |   width: 100%;
35 | }
36 | 


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/CONTRIBUTING.md:
--------------------------------------------------------------------------------
 1 | ## Prerequisites
 2 | 
 3 | [Node.js](http://nodejs.org/) >= 6 must be installed.
 4 | 
 5 | ## Installation
 6 | 
 7 | - Running `npm install` in the component's root directory will install everything you need for development.
 8 | 
 9 | ## Demo Development Server
10 | 
11 | - `npm start` will run a development server with the component's demo app at [http://localhost:3000](http://localhost:3000) with hot module reloading.
12 | 
13 | ## Running Tests
14 | 
15 | - `npm test` will run the tests once.
16 | 
17 | - `npm run test:coverage` will run the tests and produce a coverage report in `coverage/`.
18 | 
19 | - `npm run test:watch` will run the tests on every change.
20 | 
21 | ## Building
22 | 
23 | - `npm run build` will build the component for publishing to npm and also bundle the demo app.
24 | 
25 | - `npm run clean` will delete built resources.
26 | 


--------------------------------------------------------------------------------
/package.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "name": "react-fitted-image",
 3 |   "version": "1.0.1",
 4 |   "description": "React component for image handling with object-fit",
 5 |   "main": "lib/index.js",
 6 |   "module": "es/index.js",
 7 |   "files": [
 8 |     "css",
 9 |     "es",
10 |     "lib",
11 |     "umd"
12 |   ],
13 |   "scripts": {
14 |     "build": "nwb build-react-component --copy-files",
15 |     "clean": "nwb clean-module && nwb clean-demo",
16 |     "prepublishOnly": "npm run build",
17 |     "start": "nwb serve-react-demo",
18 |     "test": "nwb test-react",
19 |     "test:coverage": "nwb test-react --coverage",
20 |     "test:watch": "nwb test-react --server"
21 |   },
22 |   "dependencies": {},
23 |   "peerDependencies": {
24 |     "react": "16.x"
25 |   },
26 |   "devDependencies": {
27 |     "babel-runtime": "^6.26.0",
28 |     "enzyme": "^3.9.0",
29 |     "enzyme-adapter-react-16": "^1.13.2",
30 |     "nwb": "0.23.x",
31 |     "react": "^16.8.6",
32 |     "react-dom": "^16.8.6"
33 |   },
34 |   "author": "alexjoffroy",
35 |   "homepage": "https://github.com/alexjoffroy/react-fitted-image",
36 |   "license": "MIT",
37 |   "repository": {
38 |     "type": "git",
39 |     "url": "https://github.com/alexjoffroy/react-fitted-image.git"
40 |   },
41 |   "bugs": {
42 |     "url": "https://github.com/alexjoffroy/react-fitted-image/issues"
43 |   },
44 |   "keywords": [
45 |     "react",
46 |     "image",
47 |     "picture",
48 |     "load",
49 |     "object-fit",
50 |     "img",
51 |     "react-component"
52 |   ]
53 | }
54 | 


--------------------------------------------------------------------------------
/demo/src/index.js:
--------------------------------------------------------------------------------
 1 | import React, {Component} from 'react'
 2 | import {render} from 'react-dom'
 3 | 
 4 | import FittedImage from '../../lib'
 5 | 
 6 | import './index.css'
 7 | 
 8 | const fitOptions = [
 9 |   { value: 'auto', label: 'Auto' },
10 |   { value: 'contain', label: 'Contain' },
11 |   { value: 'cover', label: 'Cover' }
12 | ];
13 | 
14 | const sizeOptions = [
15 |   { value: '1200/700', label: '1200x700' },
16 |   { value: '500/800', label: '500x800' },
17 |   { value: '900/900', label: '900x900' }
18 | ];
19 | 
20 | class Demo extends Component {
21 | 
22 |   constructor(props) {
23 |     super(props)
24 | 
25 |     this.state = {
26 |       fit: 'contain',
27 |       size: '1200/700'
28 |     }
29 |   }
30 | 
31 |   getFitOptions() {
32 |     return fitOptions.map( (opt, key) => {
33 |       return <option value={opt.value} key={key}>{opt.label}</option>;
34 |     });
35 |   }
36 | 
37 |   getSizeOptions() {
38 |     return sizeOptions.map( (opt, key) => {
39 |       return <option value={opt.value} key={key}>{opt.label}</option>;
40 |     });
41 |   }
42 | 
43 |   onPropChange(prop, e)  {
44 |     let state = {};
45 |     state[prop] = e.target.value;
46 |     this.setState(state);
47 |   }
48 |   
49 |   render() {
50 |     return (
51 |       <div className="App">
52 |           <div className="Settings">
53 |             <label>Fit property</label>
54 |             <select value={this.state.fit} onChange={this.onPropChange.bind(this, 'fit')}>
55 |               {this.getFitOptions()}
56 |             </select>
57 |           </div>
58 |           <div className="Settings">
59 |             <label>Image size</label>
60 |             <select value={this.state.size} onChange={this.onPropChange.bind(this, 'size')}>
61 |               {this.getSizeOptions()}
62 |             </select>
63 |           </div>
64 |         <div className="Wrapper">
65 |           <FittedImage
66 |             fit={this.state.fit}
67 |             src={'https://placeimg.com/'+this.state.size+'/animals'}
68 |             loader={<div className="Loader">Loading...</div>} />
69 |         </div>
70 |       </div>
71 |     )
72 |   }
73 | 
74 | }
75 | 
76 | render(<Demo/>, document.querySelector('#demo'))
77 | 


--------------------------------------------------------------------------------
/tests/index-test.js:
--------------------------------------------------------------------------------
 1 | import React from 'react'
 2 | import expect from 'expect'
 3 | import { configure, mount } from 'enzyme';
 4 | import Adapter from 'enzyme-adapter-react-16';
 5 | import FittedImage from 'src/'
 6 | 
 7 | configure({ adapter: new Adapter() });
 8 | 
 9 | describe('FittedImage', () => {
10 | 
11 |   it('should have the "FittedImage" and "FittedImage--auto" classes by default', () => {
12 | 
13 |     const wrapper = mount(<FittedImage src="123.jpg" />)
14 | 
15 |     expect(wrapper.children().length).toBe(1)
16 |     expect(wrapper.find('.FittedImage.FittedImage--auto').length).toBe(1)
17 | 
18 |   })
19 | 
20 |   it('should render a div tag with "FittedImage--background" when browser does not support object-fit', () => {
21 | 
22 |     const wrapper = mount(<FittedImage src="123.jpg" />)
23 | 
24 |     expect(wrapper.children().length).toBe(1)
25 |     expect(wrapper.find('.FittedImage--background').length).toBe(1)
26 | 
27 |   })
28 | 
29 |   it('should render a div tag with "FittedImage--background" when background=true', () => {
30 | 
31 |     const wrapper = mount(<FittedImage src="123.jpg" background={true} />)
32 | 
33 |     expect(wrapper.children().length).toBe(1)
34 |     expect(wrapper.find('.FittedImage--background').length).toBe(1)
35 | 
36 |   })
37 | 
38 |   it('should have the "FittedImage--contain" class when fit="contain"', () => {
39 | 
40 |     const wrapper = mount(<FittedImage src="123.jpg" fit="contain" />)
41 | 
42 |     expect(wrapper.children().length).toBe(1)
43 |     expect(wrapper.find('.FittedImage--contain').length).toBe(1)
44 | 
45 |   })
46 | 
47 |   it('should have the "FittedImage--contain" class when fit="cover"', () => {
48 | 
49 |     const wrapper = mount(<FittedImage src="123.jpg" fit="cover" />)
50 | 
51 |     expect(wrapper.children().length).toBe(1)
52 |     expect(wrapper.find('.FittedImage--cover').length).toBe(1)
53 | 
54 |   })
55 | 
56 |   it('should accept custom classes', () => {
57 | 
58 |     const wrapper = mount(<FittedImage src="123.jpg" className="CustomClass OtherOne" />)
59 | 
60 |     expect(wrapper.children().length).toBe(1)
61 |     expect(wrapper.find('.FittedImage.CustomClass.OtherOne').length).toBe(1)
62 | 
63 |   })
64 | 
65 |   it('should accept custom styles', () => {
66 | 
67 |     const wrapper = mount(<FittedImage src="123.jpg" style={{width: '200px'}} />)
68 | 
69 |     expect(wrapper.children().length).toBe(1)
70 |     expect(wrapper.find('.FittedImage').length).toBe(1)
71 |     expect(wrapper.find('.FittedImage').first().props().style.width).toBe('200px')
72 |     
73 |   })
74 |   
75 | })
76 | 


--------------------------------------------------------------------------------
/src/index.js:
--------------------------------------------------------------------------------
  1 | import React, {Component} from 'react'
  2 | import PropTypes from 'prop-types';
  3 | 
  4 | import isModern from './utils/isModern'
  5 | import loadImage from './utils/loadImage'
  6 | import states from './utils/states'
  7 | 
  8 | import './index.css'
  9 | 
 10 | class FittedImage extends Component {
 11 | 
 12 |   constructor(props) {
 13 |     super(props)
 14 |     
 15 |     this.state = {
 16 |       status: states.PENDING
 17 |     }
 18 |   }
 19 | 
 20 |   componentDidMount() {
 21 |     if (this.props.loader) {
 22 |       this._loadImage();
 23 |     }
 24 |   }
 25 | 
 26 |   componentWillReceiveProps(props) {
 27 |     if (this.props.src !== props.src) {
 28 |       this._loadImage();
 29 |     }
 30 |   }
 31 | 
 32 |   render() {
 33 |     if (this.props.loader && !this._isLoaded()) {
 34 |       return this.props.loader;
 35 |     }
 36 | 
 37 |     return this._getImage()
 38 |   }
 39 | 
 40 |   _getClassName(background) {
 41 |     return [
 42 |       'FittedImage',
 43 |       background ? 'FittedImage--background' : null,
 44 |       'FittedImage--' + this.props.fit,
 45 |        this.props.className
 46 |     ].filter(item => !!item).join(' ')
 47 |   }
 48 | 
 49 |   _getImage() {
 50 |     /* eslint-disable no-unused-vars */
 51 |     const { background, fit, src, loader, onLoad, onError, ...props } = this.props
 52 | 
 53 |     if ( !background && isModern ) {
 54 |       return <img {...props} src={src} className={this._getClassName(false)} />
 55 |     }
 56 | 
 57 |     return (
 58 |       <div {...props} 
 59 |         style={Object.assign({}, this.props.style, {backgroundImage: `url(${this.props.src})`})} 
 60 |         className={this._getClassName(true)} />
 61 |     )
 62 |   }
 63 | 
 64 |   _isLoaded() {
 65 |     return states.LOADED === this.state.status
 66 |   }
 67 | 
 68 |   async _loadImage() {
 69 |     this.setState({
 70 |       status: states.LOADING
 71 |     })
 72 | 
 73 |     try {
 74 |       await loadImage(this.props.src)
 75 |     } catch(err) {
 76 |       this._onLoadError()
 77 |     }
 78 | 
 79 |     this._onLoadSuccess()
 80 |   }
 81 | 
 82 |   _onLoadSuccess() {
 83 |     this.setState({
 84 |       status: states.LOADED
 85 |     })
 86 | 
 87 |     this.props.onLoad()
 88 |   }
 89 | 
 90 |   _onLoadError() {
 91 |     this.setState({
 92 |       status: states.DEAD
 93 |     })
 94 | 
 95 |     this.props.onError()
 96 |   }
 97 | 
 98 | }
 99 | 
100 | FittedImage.propTypes = {
101 |   background: PropTypes.bool,
102 |   className: PropTypes.string,
103 |   fit: PropTypes.oneOf(['auto', 'contain', 'cover']),
104 |   loader: PropTypes.element,
105 |   src: PropTypes.string.isRequired,
106 |   style: PropTypes.object,
107 |   onLoad: PropTypes.func,
108 |   onError: PropTypes.func
109 | }
110 | 
111 | FittedImage.defaultProps = {
112 |   background: false,
113 |   fit: 'auto',
114 |   style: {},
115 |   onLoad: () => {},
116 |   onError: () => {}
117 | }
118 | 
119 | export default FittedImage


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | <a href="https://www.npmjs.com/package/react-fitted-image"><img src="https://img.shields.io/npm/dt/react-fitted-image.svg" alt="Total Downloads"></a>
 2 | <a href="https://github.com/alexjoffroy/react-fitted-image/releases"><img src="https://img.shields.io/npm/v/react-fitted-image.svg" alt="Latest Release"></a>
 3 | <a href="https://github.com/alexjoffroy/react-fitted-image/blob/master/LICENSE"><img src="https://img.shields.io/npm/l/react-fitted-image.svg" alt="License"></a>
 4 | 
 5 | # react-fitted-image
 6 | 
 7 | Pictures are always difficult to handle in web page, especially in a responsive way. A well-known workaround is to style the img tag with something like this:
 8 | 
 9 | ```css
10 | img {
11 |   max-width: 100%;
12 |   height: auto;
13 | }
14 | ```
15 | 
16 | This method works well, but there is a lot of cases where it's not sufficient. Fortunately CSS introduced some times ago the ["object-fit" property](https://developer.mozilla.org/fr/docs/Web/CSS/object-fit), improving the way we can handle image displaying.
17 | The current component provides an easy react binding to display images with object-fit property.
18 | 
19 | In addition, you can provide a loader which will be displayed during the image processing by the browser.
20 | 
21 | Object-fit is well supported by browsers but not all of them for now ( see [Caniuse](http://caniuse.com/#feat=object-fit) ). To work on stuffs like IE, a basic test is done with [CSS.supports](https://developer.mozilla.org/en/docs/Web/API/CSS/supports) to provide a fallback based on "background" CSS property.
22 | 
23 | ## Demo
24 | 
25 | http://alexjoffroy.github.io/react-fitted-image/example/
26 | 
27 | ## Usage
28 | 
29 | ### Install
30 | 
31 | ```
32 | npm install --save react-fitted-image
33 | ```
34 | 
35 | ### Properties
36 | 
37 | | Property   | Type     | Description                                                            | Default value | Required |
38 | | ---------- | -------- | ---------------------------------------------------------------------- | ------------- | -------- |
39 | | background | bool     | Force the component to use the CSS bacground properties                | false         | no       |
40 | | className  | string   | Custom classname for the component                                     | \_            | no       |
41 | | fit        | string   | Value of the object-fit property. Can be "auto", "contain", or "cover" | "auto"        | no       |
42 | | loader     | element  | Component to use as loader                                             | \_            | no       |
43 | | onLoad     | function | Success callback for image loading                                     | \_            | no       |
44 | | onError    | function | Error callback for image loading                                       | \_            | no       |
45 | | src        | string   | Image url to render                                                    | \_            | yes      |
46 | | style      | object   | Custom styles                                                          | {}            | no       |
47 | 
48 | ### Example
49 | 
50 | ```javascript
51 | <FittedImage
52 |   fit="contain"
53 |   loader={<div>Loading</div>}
54 |   onLoad={(...args) => console.log(...args)}
55 |   onError={(...args) => console.log(...args)}
56 |   src="public/img.jpg"
57 | />
58 | ```
59 | 


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