├── .eslintignore
├── .eslintrc.js
├── .gitignore
├── .npmrc
├── .prettierrc.js
├── .travis.yml
├── LICENSE
├── README.md
├── dist
    ├── components
    │   └── Camera
    │   │   ├── Camera.d.ts
    │   │   ├── styles.d.ts
    │   │   └── types.d.ts
    ├── index.cjs.js
    ├── index.d.ts
    └── index.esm.js
├── example
    ├── .eslintrc.js
    ├── .gitignore
    ├── .prettierrc.js
    ├── README.md
    ├── package-lock.json
    ├── package.json
    ├── public
    │   ├── favicon.ico
    │   ├── index.html
    │   └── manifest.json
    ├── src
    │   ├── App.tsx
    │   ├── Camera
    │   │   ├── components
    │   │   │   └── Camera
    │   │   │   │   ├── Camera.d.ts
    │   │   │   │   ├── styles.d.ts
    │   │   │   │   └── types.d.ts
    │   │   ├── index.d.ts
    │   │   └── index.js
    │   ├── index.css
    │   ├── index.tsx
    │   ├── react-app-env.d.ts
    │   └── serviceWorker.js
    └── tsconfig.json
├── package-lock.json
├── package.json
├── rollup.config.js
├── src
    ├── components
    │   └── Camera
    │   │   ├── Camera.tsx
    │   │   ├── styles.ts
    │   │   └── types.ts
    └── index.ts
├── test
    └── test.ts
└── tsconfig.json


/.eslintignore:
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1 | node_modules
2 | dist
3 | reactComponentLib
4 | 


--------------------------------------------------------------------------------
/.eslintrc.js:
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 1 | module.exports = {
 2 |   root: true,
 3 |   parser: '@typescript-eslint/parser',
 4 |   extends: [
 5 |     'plugin:react/recommended',
 6 |     'plugin:@typescript-eslint/recommended',
 7 |     'prettier',
 8 |     'plugin:prettier/recommended',
 9 |   ],
10 |   parserOptions: {
11 |     ecmaVersion: 2018,
12 |     sourceType: 'module',
13 |     ecmaFeatures: {
14 |       jsx: true,
15 |     },
16 |   },
17 |   rules: {
18 |     '@typescript-eslint/no-unused-vars': ['error', { argsIgnorePattern: '^_|^req|^next' }],
19 |     '@typescript-eslint/no-explicit-any': 0,
20 |     '@typescript-eslint/explicit-function-return-type': 0,
21 |     '@typescript-eslint/no-use-before-define': 0,
22 |     'react/prop-types': 0,
23 |   },
24 |   settings: {
25 |     react: {
26 |       version: 'detect',
27 |     },
28 |   },
29 | };
30 | 


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/.gitignore:
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1 | .DS_Store
2 | node_modules
3 | .rpt2_cache
4 | 


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/.npmrc:
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1 | registry = "https://registry.npmjs.com/"
2 | 


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/.prettierrc.js:
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1 | module.exports = {
2 |   semi: true,
3 |   trailingComma: 'all',
4 |   singleQuote: true,
5 |   printWidth: 120,
6 |   tabWidth: 2,
7 | };
8 | 


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/.travis.yml:
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1 | language: node_js
2 | node_js:
3 |   - '11'
4 |   - '10'
5 |   - '8'
6 |   - '6'
7 | 


--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
 1 | MIT License
 2 | 
 3 | Copyright (c) 2020 Purple Technology
 4 | 
 5 | Permission is hereby granted, free of charge, to any person obtaining a copy
 6 | of this software and associated documentation files (the "Software"), to deal
 7 | in the Software without restriction, including without limitation the rights
 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 9 | copies of the Software, and to permit persons to whom the Software is
10 | furnished to do so, subject to the following conditions:
11 | 
12 | The above copyright notice and this permission notice shall be included in all
13 | copies or substantial portions of the Software.
14 | 
15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 | SOFTWARE.
22 | 


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/README.md:
--------------------------------------------------------------------------------
  1 | ![npm][npm-badge]
  2 | ![downloads][downloads-badge]
  3 | 
  4 | # react-camera-pro
  5 | 
  6 | Universal Camera component for React.
  7 | 
  8 | Designed with focus on Android and iOS cameras.
  9 | Works with standard webcams as well.
 10 | 
 11 | See [this](http://caniuse.com/#feat=stream) for browser compatibility.
 12 | 
 13 | Note: WebRTC is only supported on secure connections. So you need to serve it from https. You can test and debug in Chrome from localhost though (this doesn't work in Safari).
 14 | 
 15 | ## Features
 16 | 
 17 | - mobile friendly camera solution (tested on iOS and Android)
 18 | - video element is fully responsive
 19 |   - you can setup parameter to cover your container
 20 |   - you can define aspectRatio of view: 16/9, 4/3, 1/1, ...
 21 | - taking photo to base64 jpeg file - with same aspect Ratio as view, with FullHD resolution (or maximum supported by camera).
 22 | - working with standard webcams or other video input devices
 23 | - supports autofocus
 24 | - switching facing/environment cameras (with your own button)
 25 | - detect number of cameras
 26 | - facing camera is mirrored, environment is not
 27 | - controlled by react [Ref](https://reactjs.org/docs/refs-and-the-dom.html)
 28 | - public functions to take photo, to switch camera and to get number of cameras
 29 | - typescript library
 30 | 
 31 | ## Installation
 32 | 
 33 | ```
 34 | npm install --save react-camera-pro
 35 | ```
 36 | 
 37 | ## Demo
 38 | 
 39 | https://purple-technology.github.io/react-camera-pro/
 40 | 
 41 | ## Example
 42 | 
 43 | https://github.com/purple-technology/react-camera-pro/blob/master/example/src/App.tsx
 44 | 
 45 | ## Usage
 46 | 
 47 | ```javascript
 48 | import React, { useState, useRef } from "react";
 49 | import {Camera} from "react-camera-pro";
 50 | 
 51 | const Component = () => {
 52 |   const camera = useRef(null);
 53 |   const [image, setImage] = useState(null);
 54 | 
 55 |   return (
 56 |     <div>
 57 |       <Camera ref={camera} />
 58 |       <button onClick={() => setImage(camera.current.takePhoto())}>Take photo</button>
 59 |       <img src={image} alt='Taken photo'/>
 60 |     </div>
 61 |   );
 62 | }
 63 | 
 64 | export Component;
 65 | ```
 66 | 
 67 | ### Props
 68 | 
 69 | | prop                    | type                             | default      | notes                                          |
 70 | | ----------------------- | -------------------------------- | ------------ | ---------------------------------------------- |
 71 | | facingMode              | `'user'\|'environment'`          | `'user'`     | default camera - 'user' or 'environment'       |
 72 | | aspectRatio             | `'cover'\|number`                | `'cover'`    | aspect ratio of video (16/9, 4/3);             |
 73 | | numberOfCamerasCallback | `(numberOfCameras: number):void` | `() => null` | callback is called if number of cameras change |
 74 | | errorMessages           | `object?` see below              | see below    | Error messages object (optional)               |
 75 | 
 76 | #### Error messages (prop errorMessages)
 77 | 
 78 | Type:
 79 | 
 80 | ```
 81 | errorMessages: {
 82 |   noCameraAccessible?: string;
 83 |   permissionDenied?: string;
 84 |   switchCamera?: string;
 85 |   canvas?: string;
 86 | };
 87 | ```
 88 | 
 89 | Default:
 90 | ```
 91 |   {
 92 |     noCameraAccessible: 'No camera device accessible. Please connect your camera or try a different browser.',
 93 |     permissionDenied: 'Permission denied. Please refresh and give camera permission.',
 94 |     switchCamera:
 95 |     'It is not possible to switch camera to different one because there is only one video device accessible.',
 96 |     canvas: 'Canvas is not supported.'
 97 |   }
 98 | ```
 99 | 
100 | ### Methods
101 | 
102 | - `takePhoto(): string` - Returns a base64 encoded string of the taken image.
103 | - `switchCamera(): 'user'|'environment'` - Switches the camera - user to environment or environment to user. Returns the new value 'user' or 'environment'.
104 | - `getNumberOfCameras(): number` - Returns number of available cameras.
105 | 
106 | [See demo](https://purple-technology.github.io/react-camera-pro/)
107 | 
108 | [See example code](https://github.com/purple-technology/react-camera-pro/blob/8290b1319d7436c77403784fe845060f6c4ed3bd/example/src/App.tsx#L120)
109 | 
110 | ```javascript
111 | 
112 | const Component = () => {
113 |   const camera = useRef(null);
114 |   const [numberOfCameras, setNumberOfCameras] = useState(0);
115 |   const [image, setImage] = useState(null);
116 | 
117 |   //...
118 | 
119 |   return (
120 |     <Camera ref={camera} numberOfCamerasCallback={setNumberOfCameras} />
121 |       <img src={image} alt='Image preview' />
122 |       <button
123 |         onClick={() => {
124 |             const photo = camera.current.takePhoto();
125 |             setImage(photo);
126 |         }}
127 |       />
128 |       <button
129 |         hidden={numberOfCameras <= 1}
130 |         onClick={() => {
131 |           camera.current.switchCamera();
132 |         }}
133 |       />
134 |   )
135 | ```
136 | 
137 | ## Camera options
138 | 
139 | ### User/Enviroment camera
140 | 
141 | ```javascript
142 |   const Cam = () => <Camera ref={camera} facingMode='environment'} />
143 | ```
144 | 
145 | ### Aspect ratio
146 | 
147 | ```javascript
148 | const Cam = () => <Camera ref={camera} aspectRatio={16 / 9} />;
149 | ```
150 | 
151 | ## Using within an iframe
152 | 
153 | ```
154 | <iframe src="https://example.com/camera-pro-iframe" allow="camera;"/>
155 | ```
156 | 
157 | ## Credits
158 | 
159 | - Thanks for boilerplate to: https://medium.com/@xfor/developing-publishing-react-component-library-to-npm-styled-components-typescript-cc8274305f5a
160 | - Thanks for Camera Template to: https://www.kasperkamperman.com/blog/camera-template/
161 | 
162 | ## License
163 | 
164 | MIT
165 | 
166 | [downloads-badge]: https://img.shields.io/npm/dw/react-camera-pro.svg?style=flat-square
167 | [npm-badge]: https://img.shields.io/npm/v/react-camera-pro
168 | 


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/dist/components/Camera/Camera.d.ts:
--------------------------------------------------------------------------------
1 | import React from 'react';
2 | import { CameraProps } from './types';
3 | export declare const Camera: React.ForwardRefExoticComponent<CameraProps & React.RefAttributes<unknown>>;
4 | 


--------------------------------------------------------------------------------
/dist/components/Camera/styles.d.ts:
--------------------------------------------------------------------------------
 1 | import { AspectRatio } from './types';
 2 | export declare const Wrapper: import("styled-components").StyledComponent<"div", any, {}, never>;
 3 | export declare const Container: import("styled-components").StyledComponent<"div", any, {
 4 |     aspectRatio: AspectRatio;
 5 | }, never>;
 6 | export declare const ErrorMsg: import("styled-components").StyledComponent<"div", any, {}, never>;
 7 | export declare const Cam: import("styled-components").StyledComponent<"video", any, {
 8 |     mirrored: boolean;
 9 | }, never>;
10 | export declare const Canvas: import("styled-components").StyledComponent<"canvas", any, {}, never>;
11 | 


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/dist/components/Camera/types.d.ts:
--------------------------------------------------------------------------------
 1 | /// <reference types="react" />
 2 | export declare type FacingMode = 'user' | 'environment';
 3 | export declare type AspectRatio = 'cover' | number;
 4 | export declare type Stream = MediaStream | null;
 5 | export declare type SetStream = React.Dispatch<React.SetStateAction<Stream>>;
 6 | export declare type SetNumberOfCameras = React.Dispatch<React.SetStateAction<number>>;
 7 | export declare type SetNotSupported = React.Dispatch<React.SetStateAction<boolean>>;
 8 | export declare type SetPermissionDenied = React.Dispatch<React.SetStateAction<boolean>>;
 9 | export interface CameraProps {
10 |     facingMode?: FacingMode;
11 |     aspectRatio?: AspectRatio;
12 |     numberOfCamerasCallback?(numberOfCameras: number): void;
13 |     videoSourceDeviceId?: string | undefined;
14 |     errorMessages: {
15 |         noCameraAccessible?: string;
16 |         permissionDenied?: string;
17 |         switchCamera?: string;
18 |         canvas?: string;
19 |     };
20 |     videoReadyCallback?(): void;
21 | }
22 | export declare type CameraType = React.ForwardRefExoticComponent<CameraProps & React.RefAttributes<unknown>> & {
23 |     takePhoto(): string;
24 |     switchCamera(): FacingMode;
25 |     getNumberOfCameras(): number;
26 | };
27 | 


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/dist/index.cjs.js:
--------------------------------------------------------------------------------
  1 | 'use strict';
  2 | 
  3 | Object.defineProperty(exports, '__esModule', { value: true });
  4 | 
  5 | function _interopDefault (ex) { return (ex && (typeof ex === 'object') && 'default' in ex) ? ex['default'] : ex; }
  6 | 
  7 | var React = require('react');
  8 | var React__default = _interopDefault(React);
  9 | var styled = _interopDefault(require('styled-components'));
 10 | 
 11 | /*! *****************************************************************************
 12 | Copyright (c) Microsoft Corporation. All rights reserved.
 13 | Licensed under the Apache License, Version 2.0 (the "License"); you may not use
 14 | this file except in compliance with the License. You may obtain a copy of the
 15 | License at http://www.apache.org/licenses/LICENSE-2.0
 16 | 
 17 | THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 18 | KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
 19 | WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
 20 | MERCHANTABLITY OR NON-INFRINGEMENT.
 21 | 
 22 | See the Apache Version 2.0 License for specific language governing permissions
 23 | and limitations under the License.
 24 | ***************************************************************************** */
 25 | 
 26 | function __makeTemplateObject(cooked, raw) {
 27 |     if (Object.defineProperty) { Object.defineProperty(cooked, "raw", { value: raw }); } else { cooked.raw = raw; }
 28 |     return cooked;
 29 | }
 30 | 
 31 | var Wrapper = styled.div(templateObject_1 || (templateObject_1 = __makeTemplateObject(["\n  position: absolute;\n  top: 0;\n  left: 0;\n  width: 100%;\n  height: 100%;\n"], ["\n  position: absolute;\n  top: 0;\n  left: 0;\n  width: 100%;\n  height: 100%;\n"])));
 32 | var Container = styled.div(templateObject_2 || (templateObject_2 = __makeTemplateObject(["\n  width: 100%;\n  ", "\n"], ["\n  width: 100%;\n  ",
 33 |     "\n"])), function (_a) {
 34 |     var aspectRatio = _a.aspectRatio;
 35 |     return aspectRatio === 'cover'
 36 |         ? "\n    position: absolute;\n    bottom: 0;\n    top: 0;\n    left: 0;\n    right: 0;"
 37 |         : "\n    position: relative;\n    padding-bottom: " + 100 / aspectRatio + "%;";
 38 | });
 39 | var ErrorMsg = styled.div(templateObject_3 || (templateObject_3 = __makeTemplateObject(["\n  padding: 40px;\n"], ["\n  padding: 40px;\n"])));
 40 | var Cam = styled.video(templateObject_4 || (templateObject_4 = __makeTemplateObject(["\n  width: 100%;\n  height: 100%;\n  object-fit: cover;\n  z-index: 0;\n  transform: rotateY(", ");\n"], ["\n  width: 100%;\n  height: 100%;\n  object-fit: cover;\n  z-index: 0;\n  transform: rotateY(", ");\n"])), function (_a) {
 41 |     var mirrored = _a.mirrored;
 42 |     return (mirrored ? '180deg' : '0deg');
 43 | });
 44 | var Canvas = styled.canvas(templateObject_5 || (templateObject_5 = __makeTemplateObject(["\n  display: none;\n"], ["\n  display: none;\n"])));
 45 | var templateObject_1, templateObject_2, templateObject_3, templateObject_4, templateObject_5;
 46 | 
 47 | var Camera = React__default.forwardRef(function (_a, ref) {
 48 |     var _b = _a.facingMode, facingMode = _b === void 0 ? 'user' : _b, _c = _a.aspectRatio, aspectRatio = _c === void 0 ? 'cover' : _c, _d = _a.numberOfCamerasCallback, numberOfCamerasCallback = _d === void 0 ? function () { return null; } : _d, _e = _a.videoSourceDeviceId, videoSourceDeviceId = _e === void 0 ? undefined : _e, _f = _a.errorMessages, errorMessages = _f === void 0 ? {
 49 |         noCameraAccessible: 'No camera device accessible. Please connect your camera or try a different browser.',
 50 |         permissionDenied: 'Permission denied. Please refresh and give camera permission.',
 51 |         switchCamera: 'It is not possible to switch camera to different one because there is only one video device accessible.',
 52 |         canvas: 'Canvas is not supported.',
 53 |     } : _f, _g = _a.videoReadyCallback, videoReadyCallback = _g === void 0 ? function () { return null; } : _g;
 54 |     var player = React.useRef(null);
 55 |     var canvas = React.useRef(null);
 56 |     var container = React.useRef(null);
 57 |     var _h = React.useState(0), numberOfCameras = _h[0], setNumberOfCameras = _h[1];
 58 |     var _j = React.useState(null), stream = _j[0], setStream = _j[1];
 59 |     var _k = React.useState(facingMode), currentFacingMode = _k[0], setFacingMode = _k[1];
 60 |     var _l = React.useState(false), notSupported = _l[0], setNotSupported = _l[1];
 61 |     var _m = React.useState(false), permissionDenied = _m[0], setPermissionDenied = _m[1];
 62 |     React.useEffect(function () {
 63 |         numberOfCamerasCallback(numberOfCameras);
 64 |     }, [numberOfCameras]);
 65 |     React.useImperativeHandle(ref, function () { return ({
 66 |         takePhoto: function () {
 67 |             var _a, _b, _c, _d;
 68 |             if (numberOfCameras < 1) {
 69 |                 throw new Error(errorMessages.noCameraAccessible);
 70 |             }
 71 |             if (canvas === null || canvas === void 0 ? void 0 : canvas.current) {
 72 |                 var playerWidth = ((_a = player === null || player === void 0 ? void 0 : player.current) === null || _a === void 0 ? void 0 : _a.videoWidth) || 1280;
 73 |                 var playerHeight = ((_b = player === null || player === void 0 ? void 0 : player.current) === null || _b === void 0 ? void 0 : _b.videoHeight) || 720;
 74 |                 var playerAR = playerWidth / playerHeight;
 75 |                 var canvasWidth = ((_c = container === null || container === void 0 ? void 0 : container.current) === null || _c === void 0 ? void 0 : _c.offsetWidth) || 1280;
 76 |                 var canvasHeight = ((_d = container === null || container === void 0 ? void 0 : container.current) === null || _d === void 0 ? void 0 : _d.offsetHeight) || 1280;
 77 |                 var canvasAR = canvasWidth / canvasHeight;
 78 |                 var sX = void 0, sY = void 0, sW = void 0, sH = void 0;
 79 |                 if (playerAR > canvasAR) {
 80 |                     sH = playerHeight;
 81 |                     sW = playerHeight * canvasAR;
 82 |                     sX = (playerWidth - sW) / 2;
 83 |                     sY = 0;
 84 |                 }
 85 |                 else {
 86 |                     sW = playerWidth;
 87 |                     sH = playerWidth / canvasAR;
 88 |                     sX = 0;
 89 |                     sY = (playerHeight - sH) / 2;
 90 |                 }
 91 |                 canvas.current.width = sW;
 92 |                 canvas.current.height = sH;
 93 |                 var context = canvas.current.getContext('2d');
 94 |                 if (context && (player === null || player === void 0 ? void 0 : player.current)) {
 95 |                     context.drawImage(player.current, sX, sY, sW, sH, 0, 0, sW, sH);
 96 |                 }
 97 |                 var imgData = canvas.current.toDataURL('image/jpeg');
 98 |                 return imgData;
 99 |             }
100 |             else {
101 |                 throw new Error(errorMessages.canvas);
102 |             }
103 |         },
104 |         switchCamera: function () {
105 |             if (numberOfCameras < 1) {
106 |                 throw new Error(errorMessages.noCameraAccessible);
107 |             }
108 |             else if (numberOfCameras < 2) {
109 |                 console.error('Error: Unable to switch camera. Only one device is accessible.'); // console only
110 |             }
111 |             var newFacingMode = currentFacingMode === 'user' ? 'environment' : 'user';
112 |             setFacingMode(newFacingMode);
113 |             return newFacingMode;
114 |         },
115 |         getNumberOfCameras: function () {
116 |             return numberOfCameras;
117 |         },
118 |     }); });
119 |     React.useEffect(function () {
120 |         initCameraStream(stream, setStream, currentFacingMode, videoSourceDeviceId, setNumberOfCameras, setNotSupported, setPermissionDenied);
121 |     }, [currentFacingMode, videoSourceDeviceId]);
122 |     React.useEffect(function () {
123 |         if (stream && player && player.current) {
124 |             player.current.srcObject = stream;
125 |         }
126 |         return function () {
127 |             if (stream) {
128 |                 stream.getTracks().forEach(function (track) {
129 |                     track.stop();
130 |                 });
131 |             }
132 |         };
133 |     }, [stream]);
134 |     return (React__default.createElement(Container, { ref: container, aspectRatio: aspectRatio },
135 |         React__default.createElement(Wrapper, null,
136 |             notSupported ? React__default.createElement(ErrorMsg, null, errorMessages.noCameraAccessible) : null,
137 |             permissionDenied ? React__default.createElement(ErrorMsg, null, errorMessages.permissionDenied) : null,
138 |             React__default.createElement(Cam, { ref: player, id: "video", muted: true, autoPlay: true, playsInline: true, mirrored: currentFacingMode === 'user' ? true : false, onLoadedData: function () {
139 |                     videoReadyCallback();
140 |                 } }),
141 |             React__default.createElement(Canvas, { ref: canvas }))));
142 | });
143 | Camera.displayName = 'Camera';
144 | var initCameraStream = function (stream, setStream, currentFacingMode, videoSourceDeviceId, setNumberOfCameras, setNotSupported, setPermissionDenied) {
145 |     var _a;
146 |     // stop any active streams in the window
147 |     if (stream) {
148 |         stream.getTracks().forEach(function (track) {
149 |             track.stop();
150 |         });
151 |     }
152 |     var constraints = {
153 |         audio: false,
154 |         video: {
155 |             deviceId: videoSourceDeviceId ? { exact: videoSourceDeviceId } : undefined,
156 |             facingMode: currentFacingMode,
157 |             width: { ideal: 1920 },
158 |             height: { ideal: 1920 },
159 |         },
160 |     };
161 |     if ((_a = navigator === null || navigator === void 0 ? void 0 : navigator.mediaDevices) === null || _a === void 0 ? void 0 : _a.getUserMedia) {
162 |         navigator.mediaDevices
163 |             .getUserMedia(constraints)
164 |             .then(function (stream) {
165 |             setStream(handleSuccess(stream, setNumberOfCameras));
166 |         })
167 |             .catch(function (err) {
168 |             handleError(err, setNotSupported, setPermissionDenied);
169 |         });
170 |     }
171 |     else {
172 |         var getWebcam = navigator.getUserMedia ||
173 |             navigator.webkitGetUserMedia ||
174 |             navigator.mozGetUserMedia ||
175 |             navigator.mozGetUserMedia ||
176 |             navigator.msGetUserMedia;
177 |         if (getWebcam) {
178 |             getWebcam(constraints, function (stream) {
179 |                 setStream(handleSuccess(stream, setNumberOfCameras));
180 |             }, function (err) {
181 |                 handleError(err, setNotSupported, setPermissionDenied);
182 |             });
183 |         }
184 |         else {
185 |             setNotSupported(true);
186 |         }
187 |     }
188 | };
189 | var handleSuccess = function (stream, setNumberOfCameras) {
190 |     navigator.mediaDevices
191 |         .enumerateDevices()
192 |         .then(function (r) { return setNumberOfCameras(r.filter(function (i) { return i.kind === 'videoinput'; }).length); });
193 |     return stream;
194 | };
195 | var handleError = function (error, setNotSupported, setPermissionDenied) {
196 |     console.error(error);
197 |     //https://developer.mozilla.org/en-US/docs/Web/API/MediaDevices/getUserMedia
198 |     if (error.name === 'PermissionDeniedError') {
199 |         setPermissionDenied(true);
200 |     }
201 |     else {
202 |         setNotSupported(true);
203 |     }
204 | };
205 | 
206 | exports.Camera = Camera;
207 | 


--------------------------------------------------------------------------------
/dist/index.d.ts:
--------------------------------------------------------------------------------
1 | import { Camera } from './components/Camera/Camera';
2 | import { CameraType, CameraProps } from './components/Camera/types';
3 | export { Camera, CameraType, CameraProps };
4 | 


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/dist/index.esm.js:
--------------------------------------------------------------------------------
  1 | import React, { useRef, useState, useEffect, useImperativeHandle } from 'react';
  2 | import styled from 'styled-components';
  3 | 
  4 | /*! *****************************************************************************
  5 | Copyright (c) Microsoft Corporation. All rights reserved.
  6 | Licensed under the Apache License, Version 2.0 (the "License"); you may not use
  7 | this file except in compliance with the License. You may obtain a copy of the
  8 | License at http://www.apache.org/licenses/LICENSE-2.0
  9 | 
 10 | THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 11 | KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
 12 | WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
 13 | MERCHANTABLITY OR NON-INFRINGEMENT.
 14 | 
 15 | See the Apache Version 2.0 License for specific language governing permissions
 16 | and limitations under the License.
 17 | ***************************************************************************** */
 18 | 
 19 | function __makeTemplateObject(cooked, raw) {
 20 |     if (Object.defineProperty) { Object.defineProperty(cooked, "raw", { value: raw }); } else { cooked.raw = raw; }
 21 |     return cooked;
 22 | }
 23 | 
 24 | var Wrapper = styled.div(templateObject_1 || (templateObject_1 = __makeTemplateObject(["\n  position: absolute;\n  top: 0;\n  left: 0;\n  width: 100%;\n  height: 100%;\n"], ["\n  position: absolute;\n  top: 0;\n  left: 0;\n  width: 100%;\n  height: 100%;\n"])));
 25 | var Container = styled.div(templateObject_2 || (templateObject_2 = __makeTemplateObject(["\n  width: 100%;\n  ", "\n"], ["\n  width: 100%;\n  ",
 26 |     "\n"])), function (_a) {
 27 |     var aspectRatio = _a.aspectRatio;
 28 |     return aspectRatio === 'cover'
 29 |         ? "\n    position: absolute;\n    bottom: 0;\n    top: 0;\n    left: 0;\n    right: 0;"
 30 |         : "\n    position: relative;\n    padding-bottom: " + 100 / aspectRatio + "%;";
 31 | });
 32 | var ErrorMsg = styled.div(templateObject_3 || (templateObject_3 = __makeTemplateObject(["\n  padding: 40px;\n"], ["\n  padding: 40px;\n"])));
 33 | var Cam = styled.video(templateObject_4 || (templateObject_4 = __makeTemplateObject(["\n  width: 100%;\n  height: 100%;\n  object-fit: cover;\n  z-index: 0;\n  transform: rotateY(", ");\n"], ["\n  width: 100%;\n  height: 100%;\n  object-fit: cover;\n  z-index: 0;\n  transform: rotateY(", ");\n"])), function (_a) {
 34 |     var mirrored = _a.mirrored;
 35 |     return (mirrored ? '180deg' : '0deg');
 36 | });
 37 | var Canvas = styled.canvas(templateObject_5 || (templateObject_5 = __makeTemplateObject(["\n  display: none;\n"], ["\n  display: none;\n"])));
 38 | var templateObject_1, templateObject_2, templateObject_3, templateObject_4, templateObject_5;
 39 | 
 40 | var Camera = React.forwardRef(function (_a, ref) {
 41 |     var _b = _a.facingMode, facingMode = _b === void 0 ? 'user' : _b, _c = _a.aspectRatio, aspectRatio = _c === void 0 ? 'cover' : _c, _d = _a.numberOfCamerasCallback, numberOfCamerasCallback = _d === void 0 ? function () { return null; } : _d, _e = _a.videoSourceDeviceId, videoSourceDeviceId = _e === void 0 ? undefined : _e, _f = _a.errorMessages, errorMessages = _f === void 0 ? {
 42 |         noCameraAccessible: 'No camera device accessible. Please connect your camera or try a different browser.',
 43 |         permissionDenied: 'Permission denied. Please refresh and give camera permission.',
 44 |         switchCamera: 'It is not possible to switch camera to different one because there is only one video device accessible.',
 45 |         canvas: 'Canvas is not supported.',
 46 |     } : _f, _g = _a.videoReadyCallback, videoReadyCallback = _g === void 0 ? function () { return null; } : _g;
 47 |     var player = useRef(null);
 48 |     var canvas = useRef(null);
 49 |     var container = useRef(null);
 50 |     var _h = useState(0), numberOfCameras = _h[0], setNumberOfCameras = _h[1];
 51 |     var _j = useState(null), stream = _j[0], setStream = _j[1];
 52 |     var _k = useState(facingMode), currentFacingMode = _k[0], setFacingMode = _k[1];
 53 |     var _l = useState(false), notSupported = _l[0], setNotSupported = _l[1];
 54 |     var _m = useState(false), permissionDenied = _m[0], setPermissionDenied = _m[1];
 55 |     useEffect(function () {
 56 |         numberOfCamerasCallback(numberOfCameras);
 57 |     }, [numberOfCameras]);
 58 |     useImperativeHandle(ref, function () { return ({
 59 |         takePhoto: function () {
 60 |             var _a, _b, _c, _d;
 61 |             if (numberOfCameras < 1) {
 62 |                 throw new Error(errorMessages.noCameraAccessible);
 63 |             }
 64 |             if (canvas === null || canvas === void 0 ? void 0 : canvas.current) {
 65 |                 var playerWidth = ((_a = player === null || player === void 0 ? void 0 : player.current) === null || _a === void 0 ? void 0 : _a.videoWidth) || 1280;
 66 |                 var playerHeight = ((_b = player === null || player === void 0 ? void 0 : player.current) === null || _b === void 0 ? void 0 : _b.videoHeight) || 720;
 67 |                 var playerAR = playerWidth / playerHeight;
 68 |                 var canvasWidth = ((_c = container === null || container === void 0 ? void 0 : container.current) === null || _c === void 0 ? void 0 : _c.offsetWidth) || 1280;
 69 |                 var canvasHeight = ((_d = container === null || container === void 0 ? void 0 : container.current) === null || _d === void 0 ? void 0 : _d.offsetHeight) || 1280;
 70 |                 var canvasAR = canvasWidth / canvasHeight;
 71 |                 var sX = void 0, sY = void 0, sW = void 0, sH = void 0;
 72 |                 if (playerAR > canvasAR) {
 73 |                     sH = playerHeight;
 74 |                     sW = playerHeight * canvasAR;
 75 |                     sX = (playerWidth - sW) / 2;
 76 |                     sY = 0;
 77 |                 }
 78 |                 else {
 79 |                     sW = playerWidth;
 80 |                     sH = playerWidth / canvasAR;
 81 |                     sX = 0;
 82 |                     sY = (playerHeight - sH) / 2;
 83 |                 }
 84 |                 canvas.current.width = sW;
 85 |                 canvas.current.height = sH;
 86 |                 var context = canvas.current.getContext('2d');
 87 |                 if (context && (player === null || player === void 0 ? void 0 : player.current)) {
 88 |                     context.drawImage(player.current, sX, sY, sW, sH, 0, 0, sW, sH);
 89 |                 }
 90 |                 var imgData = canvas.current.toDataURL('image/jpeg');
 91 |                 return imgData;
 92 |             }
 93 |             else {
 94 |                 throw new Error(errorMessages.canvas);
 95 |             }
 96 |         },
 97 |         switchCamera: function () {
 98 |             if (numberOfCameras < 1) {
 99 |                 throw new Error(errorMessages.noCameraAccessible);
100 |             }
101 |             else if (numberOfCameras < 2) {
102 |                 console.error('Error: Unable to switch camera. Only one device is accessible.'); // console only
103 |             }
104 |             var newFacingMode = currentFacingMode === 'user' ? 'environment' : 'user';
105 |             setFacingMode(newFacingMode);
106 |             return newFacingMode;
107 |         },
108 |         getNumberOfCameras: function () {
109 |             return numberOfCameras;
110 |         },
111 |     }); });
112 |     useEffect(function () {
113 |         initCameraStream(stream, setStream, currentFacingMode, videoSourceDeviceId, setNumberOfCameras, setNotSupported, setPermissionDenied);
114 |     }, [currentFacingMode, videoSourceDeviceId]);
115 |     useEffect(function () {
116 |         if (stream && player && player.current) {
117 |             player.current.srcObject = stream;
118 |         }
119 |         return function () {
120 |             if (stream) {
121 |                 stream.getTracks().forEach(function (track) {
122 |                     track.stop();
123 |                 });
124 |             }
125 |         };
126 |     }, [stream]);
127 |     return (React.createElement(Container, { ref: container, aspectRatio: aspectRatio },
128 |         React.createElement(Wrapper, null,
129 |             notSupported ? React.createElement(ErrorMsg, null, errorMessages.noCameraAccessible) : null,
130 |             permissionDenied ? React.createElement(ErrorMsg, null, errorMessages.permissionDenied) : null,
131 |             React.createElement(Cam, { ref: player, id: "video", muted: true, autoPlay: true, playsInline: true, mirrored: currentFacingMode === 'user' ? true : false, onLoadedData: function () {
132 |                     videoReadyCallback();
133 |                 } }),
134 |             React.createElement(Canvas, { ref: canvas }))));
135 | });
136 | Camera.displayName = 'Camera';
137 | var initCameraStream = function (stream, setStream, currentFacingMode, videoSourceDeviceId, setNumberOfCameras, setNotSupported, setPermissionDenied) {
138 |     var _a;
139 |     // stop any active streams in the window
140 |     if (stream) {
141 |         stream.getTracks().forEach(function (track) {
142 |             track.stop();
143 |         });
144 |     }
145 |     var constraints = {
146 |         audio: false,
147 |         video: {
148 |             deviceId: videoSourceDeviceId ? { exact: videoSourceDeviceId } : undefined,
149 |             facingMode: currentFacingMode,
150 |             width: { ideal: 1920 },
151 |             height: { ideal: 1920 },
152 |         },
153 |     };
154 |     if ((_a = navigator === null || navigator === void 0 ? void 0 : navigator.mediaDevices) === null || _a === void 0 ? void 0 : _a.getUserMedia) {
155 |         navigator.mediaDevices
156 |             .getUserMedia(constraints)
157 |             .then(function (stream) {
158 |             setStream(handleSuccess(stream, setNumberOfCameras));
159 |         })
160 |             .catch(function (err) {
161 |             handleError(err, setNotSupported, setPermissionDenied);
162 |         });
163 |     }
164 |     else {
165 |         var getWebcam = navigator.getUserMedia ||
166 |             navigator.webkitGetUserMedia ||
167 |             navigator.mozGetUserMedia ||
168 |             navigator.mozGetUserMedia ||
169 |             navigator.msGetUserMedia;
170 |         if (getWebcam) {
171 |             getWebcam(constraints, function (stream) {
172 |                 setStream(handleSuccess(stream, setNumberOfCameras));
173 |             }, function (err) {
174 |                 handleError(err, setNotSupported, setPermissionDenied);
175 |             });
176 |         }
177 |         else {
178 |             setNotSupported(true);
179 |         }
180 |     }
181 | };
182 | var handleSuccess = function (stream, setNumberOfCameras) {
183 |     navigator.mediaDevices
184 |         .enumerateDevices()
185 |         .then(function (r) { return setNumberOfCameras(r.filter(function (i) { return i.kind === 'videoinput'; }).length); });
186 |     return stream;
187 | };
188 | var handleError = function (error, setNotSupported, setPermissionDenied) {
189 |     console.error(error);
190 |     //https://developer.mozilla.org/en-US/docs/Web/API/MediaDevices/getUserMedia
191 |     if (error.name === 'PermissionDeniedError') {
192 |         setPermissionDenied(true);
193 |     }
194 |     else {
195 |         setNotSupported(true);
196 |     }
197 | };
198 | 
199 | export { Camera };
200 | 


--------------------------------------------------------------------------------
/example/.eslintrc.js:
--------------------------------------------------------------------------------
 1 | module.exports = {
 2 |   root: true,
 3 |   parser: '@typescript-eslint/parser',
 4 |   extends: [
 5 | 		"plugin:react/recommended",
 6 | 		"plugin:@typescript-eslint/recommended",
 7 | 		"prettier",
 8 | 		"plugin:prettier/recommended"
 9 |   ],
10 |   parserOptions: {
11 |     ecmaVersion: 2018,
12 |     sourceType: 'module',
13 |     ecmaFeatures: {
14 |       jsx: true,
15 |     },
16 |   },
17 |   rules: {
18 |     '@typescript-eslint/no-unused-vars': ['error', { argsIgnorePattern: '^_|^req|^next' }],
19 |     '@typescript-eslint/no-explicit-any': 0,
20 |     '@typescript-eslint/explicit-function-return-type': 0,
21 |     'react/prop-types': 0,
22 |   },
23 |   settings: {
24 |     react: {
25 |       version: 'detect',
26 |     },
27 |   },
28 | };
29 | 


--------------------------------------------------------------------------------
/example/.gitignore:
--------------------------------------------------------------------------------
 1 | # See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
 2 | 
 3 | # dependencies
 4 | /node_modules
 5 | /.pnp
 6 | .pnp.js
 7 | 
 8 | # testing
 9 | /coverage
10 | 
11 | # production
12 | /build
13 | 
14 | # misc
15 | .DS_Store
16 | .env.local
17 | .env.development.local
18 | .env.test.local
19 | .env.production.local
20 | 
21 | npm-debug.log*
22 | yarn-debug.log*
23 | yarn-error.log*
24 | 
25 | /src/reactComponentLib
26 | 


--------------------------------------------------------------------------------
/example/.prettierrc.js:
--------------------------------------------------------------------------------
1 | module.exports = {
2 |   semi: true,
3 |   trailingComma: 'all',
4 |   singleQuote: true,
5 |   printWidth: 120,
6 |   tabWidth: 2,
7 | };
8 | 


--------------------------------------------------------------------------------
/example/README.md:
--------------------------------------------------------------------------------
 1 | This project was bootstrapped with [Create React App](https://github.com/facebook/create-react-app).
 2 | 
 3 | ## Available Scripts
 4 | 
 5 | In the project directory, you can run:
 6 | 
 7 | ### `npm start`
 8 | 
 9 | Runs the app in the development mode.<br>
10 | Open [http://localhost:3000](http://localhost:3000) to view it in the browser.
11 | 
12 | The page will reload if you make edits.<br>
13 | You will also see any lint errors in the console.
14 | 
15 | ### `npm test`
16 | 
17 | Launches the test runner in the interactive watch mode.<br>
18 | See the section about [running tests](https://facebook.github.io/create-react-app/docs/running-tests) for more information.
19 | 
20 | ### `npm run build`
21 | 
22 | Builds the app for production to the `build` folder.<br>
23 | It correctly bundles React in production mode and optimizes the build for the best performance.
24 | 
25 | The build is minified and the filenames include the hashes.<br>
26 | Your app is ready to be deployed!
27 | 
28 | See the section about [deployment](https://facebook.github.io/create-react-app/docs/deployment) for more information.
29 | 
30 | ### `npm run eject`
31 | 
32 | **Note: this is a one-way operation. Once you `eject`, you can’t go back!**
33 | 
34 | If you aren’t satisfied with the build tool and configuration choices, you can `eject` at any time. This command will remove the single build dependency from your project.
35 | 
36 | Instead, it will copy all the configuration files and the transitive dependencies (Webpack, Babel, ESLint, etc) right into your project so you have full control over them. All of the commands except `eject` will still work, but they will point to the copied scripts so you can tweak them. At this point you’re on your own.
37 | 
38 | You don’t have to ever use `eject`. The curated feature set is suitable for small and middle deployments, and you shouldn’t feel obligated to use this feature. However we understand that this tool wouldn’t be useful if you couldn’t customize it when you are ready for it.
39 | 
40 | ## Learn More
41 | 
42 | You can learn more in the [Create React App documentation](https://facebook.github.io/create-react-app/docs/getting-started).
43 | 
44 | To learn React, check out the [React documentation](https://reactjs.org/).
45 | 
46 | ### Code Splitting
47 | 
48 | This section has moved here: https://facebook.github.io/create-react-app/docs/code-splitting
49 | 
50 | ### Analyzing the Bundle Size
51 | 
52 | This section has moved here: https://facebook.github.io/create-react-app/docs/analyzing-the-bundle-size
53 | 
54 | ### Making a Progressive Web App
55 | 
56 | This section has moved here: https://facebook.github.io/create-react-app/docs/making-a-progressive-web-app
57 | 
58 | ### Advanced Configuration
59 | 
60 | This section has moved here: https://facebook.github.io/create-react-app/docs/advanced-configuration
61 | 
62 | ### Deployment
63 | 
64 | This section has moved here: https://facebook.github.io/create-react-app/docs/deployment
65 | 
66 | ### `npm run build` fails to minify
67 | 
68 | This section has moved here: https://facebook.github.io/create-react-app/docs/troubleshooting#npm-run-build-fails-to-minify
69 | 


--------------------------------------------------------------------------------
/example/package.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "name": "react-camera-pro-example",
 3 |   "version": "0.1.0",
 4 |   "private": true,
 5 |   "homepage": "https://purple-technology.github.io/react-camera-pro",
 6 |   "dependencies": {
 7 |     "react": "^17.0.2",
 8 |     "react-dom": "^17.0.2",
 9 |     "react-scripts": "5.0.0",
10 |     "styled-components": "^5.2.1"
11 |   },
12 |   "devDependencies": {
13 |     "@types/jest": "^24.0.23",
14 |     "@types/node": "^12.12.14",
15 |     "@types/react": "^16.9.13",
16 |     "@types/react-dom": "^16.9.4",
17 |     "@types/styled-components": "^5.0.0",
18 |     "gh-pages": "^2.1.1",
19 |     "typescript": "^3.7.2"
20 |   },
21 |   "scripts": {
22 |     "predeploy": "npm run build",
23 |     "deploy": "gh-pages -d build",
24 |     "start": "react-scripts start",
25 |     "build": "react-scripts build",
26 |     "test": "react-scripts test",
27 |     "eject": "react-scripts eject"
28 |   },
29 |   "eslintConfig": {
30 |     "extends": "react-app"
31 |   },
32 |   "browserslist": [
33 |     ">0.2%",
34 |     "not dead",
35 |     "not ie <= 11",
36 |     "not op_mini all"
37 |   ]
38 | }
39 | 


--------------------------------------------------------------------------------
/example/public/favicon.ico:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/purple-technology/react-camera-pro/d0cce40cc444138231b0709539da52c44d183eba/example/public/favicon.ico


--------------------------------------------------------------------------------
/example/public/index.html:
--------------------------------------------------------------------------------
 1 | <!DOCTYPE html>
 2 | <html lang="en">
 3 |   <head>
 4 |     <meta charset="utf-8" />
 5 |     <link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico" />
 6 |     <meta
 7 |       name="viewport"
 8 |       content="width=device-width, initial-scale=1, shrink-to-fit=no"
 9 |     />
10 |     <meta name="theme-color" content="#000000" />
11 |     <!--
12 |       manifest.json provides metadata used when your web app is installed on a
13 |       user's mobile device or desktop. See https://developers.google.com/web/fundamentals/web-app-manifest/
14 |     -->
15 |     <link rel="manifest" href="%PUBLIC_URL%/manifest.json" />
16 |     <!--
17 |       Notice the use of %PUBLIC_URL% in the tags above.
18 |       It will be replaced with the URL of the `public` folder during the build.
19 |       Only files inside the `public` folder can be referenced from the HTML.
20 | 
21 |       Unlike "/favicon.ico" or "favicon.ico", "%PUBLIC_URL%/favicon.ico" will
22 |       work correctly both with client-side routing and a non-root public URL.
23 |       Learn how to configure a non-root public URL by running `npm run build`.
24 |     -->
25 |     <title>React App</title>
26 |   </head>
27 |   <body>
28 |     <noscript>You need to enable JavaScript to run this app.</noscript>
29 |     <div id="root"></div>
30 |     <!--
31 |       This HTML file is a template.
32 |       If you open it directly in the browser, you will see an empty page.
33 | 
34 |       You can add webfonts, meta tags, or analytics to this file.
35 |       The build step will place the bundled scripts into the <body> tag.
36 | 
37 |       To begin the development, run `npm start` or `yarn start`.
38 |       To create a production bundle, use `npm run build` or `yarn build`.
39 |     -->
40 |   </body>
41 | </html>
42 | 


--------------------------------------------------------------------------------
/example/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": ".",
12 |   "display": "standalone",
13 |   "theme_color": "#000000",
14 |   "background_color": "#ffffff"
15 | }
16 | 


--------------------------------------------------------------------------------
/example/src/App.tsx:
--------------------------------------------------------------------------------
  1 | import React, { useEffect, useRef, useState } from 'react';
  2 | import styled from 'styled-components';
  3 | 
  4 | import { Camera, CameraType } from './Camera';
  5 | 
  6 | const Wrapper = styled.div`
  7 |   position: fixed;
  8 |   width: 100%;
  9 |   height: 100%;
 10 |   z-index: 1;
 11 | `;
 12 | 
 13 | const Control = styled.div`
 14 |   position: fixed;
 15 |   display: flex;
 16 |   right: 0;
 17 |   width: 20%;
 18 |   min-width: 130px;
 19 |   min-height: 130px;
 20 |   height: 100%;
 21 |   background: rgba(0, 0, 0, 0.8);
 22 |   z-index: 10;
 23 |   display: flex;
 24 |   align-items: center;
 25 |   justify-content: space-between;
 26 |   padding: 50px;
 27 |   box-sizing: border-box;
 28 |   flex-direction: column-reverse;
 29 | 
 30 |   @media (max-aspect-ratio: 1/1) {
 31 |     flex-direction: row;
 32 |     bottom: 0;
 33 |     width: 100%;
 34 |     height: 20%;
 35 |   }
 36 | 
 37 |   @media (max-width: 400px) {
 38 |     padding: 10px;
 39 |   }
 40 | `;
 41 | 
 42 | const Button = styled.button`
 43 |   outline: none;
 44 |   color: white;
 45 |   opacity: 1;
 46 |   background: transparent;
 47 |   background-color: transparent;
 48 |   background-position-x: 0%;
 49 |   background-position-y: 0%;
 50 |   background-repeat: repeat;
 51 |   background-image: none;
 52 |   padding: 0;
 53 |   text-shadow: 0px 0px 4px black;
 54 |   background-position: center center;
 55 |   background-repeat: no-repeat;
 56 |   pointer-events: auto;
 57 |   cursor: pointer;
 58 |   z-index: 2;
 59 |   filter: invert(100%);
 60 |   border: none;
 61 | 
 62 |   &:hover {
 63 |     opacity: 0.7;
 64 |   }
 65 | `;
 66 | 
 67 | const TakePhotoButton = styled(Button)`
 68 |   background: url('https://img.icons8.com/ios/50/000000/compact-camera.png');
 69 |   background-position: center;
 70 |   background-size: 50px;
 71 |   background-repeat: no-repeat;
 72 |   width: 80px;
 73 |   height: 80px;
 74 |   border: solid 4px black;
 75 |   border-radius: 50%;
 76 | 
 77 |   &:hover {
 78 |     background-color: rgba(0, 0, 0, 0.3);
 79 |   }
 80 | `;
 81 | 
 82 | const TorchButton = styled(Button)`
 83 |   background: url('https://img.icons8.com/ios/50/000000/light.png');
 84 |   background-position: center;
 85 |   background-size: 50px;
 86 |   background-repeat: no-repeat;
 87 |   width: 80px;
 88 |   height: 80px;
 89 |   border: solid 4px black;
 90 |   border-radius: 50%;
 91 | 
 92 |   &.toggled {
 93 |     background-color: rgba(0, 0, 0, 0.3);
 94 |   }
 95 | `;
 96 | 
 97 | const ChangeFacingCameraButton = styled(Button)`
 98 |   background: url(https://img.icons8.com/ios/50/000000/switch-camera.png);
 99 |   background-position: center;
100 |   background-size: 40px;
101 |   background-repeat: no-repeat;
102 |   width: 40px;
103 |   height: 40px;
104 |   padding: 40px;
105 |   &:disabled {
106 |     opacity: 0;
107 |     cursor: default;
108 |     padding: 60px;
109 |   }
110 |   @media (max-width: 400px) {
111 |     padding: 40px 5px;
112 |     &:disabled {
113 |       padding: 40px 25px;
114 |     }
115 |   }
116 | `;
117 | 
118 | const ImagePreview = styled.div<{ image: string | null }>`
119 |   width: 120px;
120 |   height: 120px;
121 |   ${({ image }) => (image ? `background-image:  url(${image});` : '')}
122 |   background-size: contain;
123 |   background-repeat: no-repeat;
124 |   background-position: center;
125 | 
126 |   @media (max-width: 400px) {
127 |     width: 50px;
128 |     height: 120px;
129 |   }
130 | `;
131 | 
132 | const FullScreenImagePreview = styled.div<{ image: string | null }>`
133 |   width: 100%;
134 |   height: 100%;
135 |   z-index: 100;
136 |   position: absolute;
137 |   background-color: black;
138 |   ${({ image }) => (image ? `background-image:  url(${image});` : '')}
139 |   background-size: contain;
140 |   background-repeat: no-repeat;
141 |   background-position: center;
142 | `;
143 | 
144 | const App = () => {
145 |   const [numberOfCameras, setNumberOfCameras] = useState(0);
146 |   const [image, setImage] = useState<string | null>(null);
147 |   const [showImage, setShowImage] = useState<boolean>(false);
148 |   const camera = useRef<CameraType>(null);
149 |   const [devices, setDevices] = useState<MediaDeviceInfo[]>([]);
150 |   const [activeDeviceId, setActiveDeviceId] = useState<string | undefined>(undefined);
151 |   const [torchToggled, setTorchToggled] = useState<boolean>(false);
152 | 
153 |   useEffect(() => {
154 |     (async () => {
155 |       const devices = await navigator.mediaDevices.enumerateDevices();
156 |       const videoDevices = devices.filter((i) => i.kind == 'videoinput');
157 |       setDevices(videoDevices);
158 |     })();
159 |   });
160 | 
161 |   return (
162 |     <Wrapper>
163 |       {showImage ? (
164 |         <FullScreenImagePreview
165 |           image={image}
166 |           onClick={() => {
167 |             setShowImage(!showImage);
168 |           }}
169 |         />
170 |       ) : (
171 |         <Camera
172 |           ref={camera}
173 |           aspectRatio="cover"
174 |           facingMode="environment"
175 |           numberOfCamerasCallback={(i) => setNumberOfCameras(i)}
176 |           videoSourceDeviceId={activeDeviceId}
177 |           errorMessages={{
178 |             noCameraAccessible: 'No camera device accessible. Please connect your camera or try a different browser.',
179 |             permissionDenied: 'Permission denied. Please refresh and give camera permission.',
180 |             switchCamera:
181 |               'It is not possible to switch camera to different one because there is only one video device accessible.',
182 |             canvas: 'Canvas is not supported.',
183 |           }}
184 |           videoReadyCallback={() => {
185 |             console.log('Video feed ready.');
186 |           }}
187 |         />
188 |       )}
189 |       <Control>
190 |         <select
191 |           onChange={(event) => {
192 |             setActiveDeviceId(event.target.value);
193 |           }}
194 |         >
195 |           {devices.map((d) => (
196 |             <option key={d.deviceId} value={d.deviceId}>
197 |               {d.label}
198 |             </option>
199 |           ))}
200 |         </select>
201 |         <ImagePreview
202 |           image={image}
203 |           onClick={() => {
204 |             setShowImage(!showImage);
205 |           }}
206 |         />
207 |         <TakePhotoButton
208 |           onClick={() => {
209 |             if (camera.current) {
210 |               const photo = camera.current.takePhoto();
211 |               console.log(photo);
212 |               setImage(photo as string);
213 |             }
214 |           }}
215 |         />
216 |         {camera.current?.torchSupported && (
217 |           <TorchButton
218 |             className={torchToggled ? 'toggled' : ''}
219 |             onClick={() => {
220 |               if (camera.current) {
221 |                 setTorchToggled(camera.current.toggleTorch());
222 |               }
223 |             }}
224 |           />
225 |         )}
226 |         <ChangeFacingCameraButton
227 |           disabled={numberOfCameras <= 1}
228 |           onClick={() => {
229 |             if (camera.current) {
230 |               const result = camera.current.switchCamera();
231 |               console.log(result);
232 |             }
233 |           }}
234 |         />
235 |       </Control>
236 |     </Wrapper>
237 |   );
238 | };
239 | 
240 | export default App;
241 | 


--------------------------------------------------------------------------------
/example/src/Camera/components/Camera/Camera.d.ts:
--------------------------------------------------------------------------------
1 | import React from 'react';
2 | import { CameraProps } from './types';
3 | export declare const Camera: React.ForwardRefExoticComponent<CameraProps & React.RefAttributes<unknown>>;
4 | 


--------------------------------------------------------------------------------
/example/src/Camera/components/Camera/styles.d.ts:
--------------------------------------------------------------------------------
 1 | import { AspectRatio } from './types';
 2 | export declare const Wrapper: import("styled-components").StyledComponent<"div", any, {}, never>;
 3 | export declare const Container: import("styled-components").StyledComponent<"div", any, {
 4 |     aspectRatio: AspectRatio;
 5 | }, never>;
 6 | export declare const ErrorMsg: import("styled-components").StyledComponent<"div", any, {}, never>;
 7 | export declare const Cam: import("styled-components").StyledComponent<"video", any, {
 8 |     mirrored: boolean;
 9 | }, never>;
10 | export declare const Canvas: import("styled-components").StyledComponent<"canvas", any, {}, never>;
11 | 


--------------------------------------------------------------------------------
/example/src/Camera/components/Camera/types.d.ts:
--------------------------------------------------------------------------------
 1 | /// <reference types="react" />
 2 | export declare type FacingMode = 'user' | 'environment';
 3 | export declare type AspectRatio = 'cover' | number;
 4 | export declare type Stream = MediaStream | null;
 5 | export declare type SetStream = React.Dispatch<React.SetStateAction<Stream>>;
 6 | export declare type SetNumberOfCameras = React.Dispatch<React.SetStateAction<number>>;
 7 | export declare type SetNotSupported = React.Dispatch<React.SetStateAction<boolean>>;
 8 | export declare type SetPermissionDenied = React.Dispatch<React.SetStateAction<boolean>>;
 9 | export interface CameraProps {
10 |     facingMode?: FacingMode;
11 |     aspectRatio?: AspectRatio;
12 |     numberOfCamerasCallback?(numberOfCameras: number): void;
13 |     videoSourceDeviceId?: string | undefined;
14 |     errorMessages: {
15 |         noCameraAccessible?: string;
16 |         permissionDenied?: string;
17 |         switchCamera?: string;
18 |         canvas?: string;
19 |     };
20 |     videoReadyCallback?(): void;
21 | }
22 | export declare type CameraType = React.ForwardRefExoticComponent<CameraProps & React.RefAttributes<unknown>> & {
23 |     takePhoto(type?: 'base64url' | 'imgData'): string | ImageData;
24 |     switchCamera(): FacingMode;
25 |     getNumberOfCameras(): number;
26 |     toggleTorch(): boolean;
27 |     torchSupported: boolean;
28 | };
29 | 


--------------------------------------------------------------------------------
/example/src/Camera/index.d.ts:
--------------------------------------------------------------------------------
1 | import { Camera } from './components/Camera/Camera';
2 | import { CameraType, CameraProps } from './components/Camera/types';
3 | export { Camera, CameraType, CameraProps };
4 | 


--------------------------------------------------------------------------------
/example/src/Camera/index.js:
--------------------------------------------------------------------------------
  1 | /* eslint-disable */
  2 | import React, { useRef, useState, useEffect, useImperativeHandle } from 'react';
  3 | import styled from 'styled-components';
  4 | 
  5 | /*! *****************************************************************************
  6 | Copyright (c) Microsoft Corporation. All rights reserved.
  7 | Licensed under the Apache License, Version 2.0 (the "License"); you may not use
  8 | this file except in compliance with the License. You may obtain a copy of the
  9 | License at http://www.apache.org/licenses/LICENSE-2.0
 10 | 
 11 | THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 12 | KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
 13 | WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
 14 | MERCHANTABLITY OR NON-INFRINGEMENT.
 15 | 
 16 | See the Apache Version 2.0 License for specific language governing permissions
 17 | and limitations under the License.
 18 | ***************************************************************************** */
 19 | 
 20 | function __awaiter(thisArg, _arguments, P, generator) {
 21 |     return new (P || (P = Promise))(function (resolve, reject) {
 22 |         function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
 23 |         function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
 24 |         function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }
 25 |         step((generator = generator.apply(thisArg, _arguments || [])).next());
 26 |     });
 27 | }
 28 | 
 29 | function __generator(thisArg, body) {
 30 |     var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
 31 |     return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
 32 |     function verb(n) { return function (v) { return step([n, v]); }; }
 33 |     function step(op) {
 34 |         if (f) throw new TypeError("Generator is already executing.");
 35 |         while (_) try {
 36 |             if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
 37 |             if (y = 0, t) op = [op[0] & 2, t.value];
 38 |             switch (op[0]) {
 39 |                 case 0: case 1: t = op; break;
 40 |                 case 4: _.label++; return { value: op[1], done: false };
 41 |                 case 5: _.label++; y = op[1]; op = [0]; continue;
 42 |                 case 7: op = _.ops.pop(); _.trys.pop(); continue;
 43 |                 default:
 44 |                     if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
 45 |                     if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
 46 |                     if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
 47 |                     if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
 48 |                     if (t[2]) _.ops.pop();
 49 |                     _.trys.pop(); continue;
 50 |             }
 51 |             op = body.call(thisArg, _);
 52 |         } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
 53 |         if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
 54 |     }
 55 | }
 56 | 
 57 | function __makeTemplateObject(cooked, raw) {
 58 |     if (Object.defineProperty) { Object.defineProperty(cooked, "raw", { value: raw }); } else { cooked.raw = raw; }
 59 |     return cooked;
 60 | }
 61 | 
 62 | var Wrapper = styled.div(templateObject_1 || (templateObject_1 = __makeTemplateObject(["\n  position: absolute;\n  top: 0;\n  left: 0;\n  width: 100%;\n  height: 100%;\n"], ["\n  position: absolute;\n  top: 0;\n  left: 0;\n  width: 100%;\n  height: 100%;\n"])));
 63 | var Container = styled.div(templateObject_2 || (templateObject_2 = __makeTemplateObject(["\n  width: 100%;\n  ", "\n"], ["\n  width: 100%;\n  ",
 64 |     "\n"])), function (_a) {
 65 |     var aspectRatio = _a.aspectRatio;
 66 |     return aspectRatio === 'cover'
 67 |         ? "\n    position: absolute;\n    bottom: 0;\n    top: 0;\n    left: 0;\n    right: 0;"
 68 |         : "\n    position: relative;\n    padding-bottom: " + 100 / aspectRatio + "%;";
 69 | });
 70 | var ErrorMsg = styled.div(templateObject_3 || (templateObject_3 = __makeTemplateObject(["\n  padding: 40px;\n"], ["\n  padding: 40px;\n"])));
 71 | var Cam = styled.video(templateObject_4 || (templateObject_4 = __makeTemplateObject(["\n  width: 100%;\n  height: 100%;\n  object-fit: cover;\n  z-index: 0;\n  transform: rotateY(", ");\n"], ["\n  width: 100%;\n  height: 100%;\n  object-fit: cover;\n  z-index: 0;\n  transform: rotateY(", ");\n"])), function (_a) {
 72 |     var mirrored = _a.mirrored;
 73 |     return (mirrored ? '180deg' : '0deg');
 74 | });
 75 | var Canvas = styled.canvas(templateObject_5 || (templateObject_5 = __makeTemplateObject(["\n  display: none;\n"], ["\n  display: none;\n"])));
 76 | var templateObject_1, templateObject_2, templateObject_3, templateObject_4, templateObject_5;
 77 | 
 78 | var Camera = React.forwardRef(function (_a, ref) {
 79 |     var _b = _a.facingMode, facingMode = _b === void 0 ? 'user' : _b, _c = _a.aspectRatio, aspectRatio = _c === void 0 ? 'cover' : _c, _d = _a.numberOfCamerasCallback, numberOfCamerasCallback = _d === void 0 ? function () { return null; } : _d, _e = _a.videoSourceDeviceId, videoSourceDeviceId = _e === void 0 ? undefined : _e, _f = _a.errorMessages, errorMessages = _f === void 0 ? {
 80 |         noCameraAccessible: 'No camera device accessible. Please connect your camera or try a different browser.',
 81 |         permissionDenied: 'Permission denied. Please refresh and give camera permission.',
 82 |         switchCamera: 'It is not possible to switch camera to different one because there is only one video device accessible.',
 83 |         canvas: 'Canvas is not supported.',
 84 |     } : _f, _g = _a.videoReadyCallback, videoReadyCallback = _g === void 0 ? function () { return null; } : _g;
 85 |     var player = useRef(null);
 86 |     var canvas = useRef(null);
 87 |     var context = useRef(null);
 88 |     var container = useRef(null);
 89 |     var _h = useState(0), numberOfCameras = _h[0], setNumberOfCameras = _h[1];
 90 |     var _j = useState(null), stream = _j[0], setStream = _j[1];
 91 |     var _k = useState(facingMode), currentFacingMode = _k[0], setFacingMode = _k[1];
 92 |     var _l = useState(false), notSupported = _l[0], setNotSupported = _l[1];
 93 |     var _m = useState(false), permissionDenied = _m[0], setPermissionDenied = _m[1];
 94 |     var _o = useState(false), torchSupported = _o[0], setTorchSupported = _o[1];
 95 |     var _p = useState(false), torch = _p[0], setTorch = _p[1];
 96 |     useEffect(function () {
 97 |         numberOfCamerasCallback(numberOfCameras);
 98 |     }, [numberOfCameras]);
 99 |     var switchTorch = function (on) {
100 |         if (on === void 0) { on = false; }
101 |         return __awaiter(void 0, void 0, void 0, function () {
102 |             var supportedConstraints, track, _a;
103 |             return __generator(this, function (_b) {
104 |                 switch (_b.label) {
105 |                     case 0:
106 |                         if (!(stream && (navigator === null || navigator === void 0 ? void 0 : navigator.mediaDevices))) return [3 /*break*/, 4];
107 |                         supportedConstraints = navigator.mediaDevices.getSupportedConstraints();
108 |                         track = stream.getTracks()[0];
109 |                         if (!(supportedConstraints && 'torch' in supportedConstraints && track)) return [3 /*break*/, 4];
110 |                         _b.label = 1;
111 |                     case 1:
112 |                         _b.trys.push([1, 3, , 4]);
113 |                         return [4 /*yield*/, track.applyConstraints({ advanced: [{ torch: on }] })];
114 |                     case 2:
115 |                         _b.sent();
116 |                         return [2 /*return*/, true];
117 |                     case 3:
118 |                         _a = _b.sent();
119 |                         return [2 /*return*/, false];
120 |                     case 4: return [2 /*return*/, false];
121 |                 }
122 |             });
123 |         });
124 |     };
125 |     useEffect(function () {
126 |         switchTorch(torch);
127 |     }, [torch]);
128 |     useImperativeHandle(ref, function () { return ({
129 |         takePhoto: function (type) {
130 |             var _a, _b, _c, _d, _e;
131 |             if (numberOfCameras < 1) {
132 |                 throw new Error(errorMessages.noCameraAccessible);
133 |             }
134 |             if (canvas === null || canvas === void 0 ? void 0 : canvas.current) {
135 |                 var playerWidth = ((_a = player === null || player === void 0 ? void 0 : player.current) === null || _a === void 0 ? void 0 : _a.videoWidth) || 1280;
136 |                 var playerHeight = ((_b = player === null || player === void 0 ? void 0 : player.current) === null || _b === void 0 ? void 0 : _b.videoHeight) || 720;
137 |                 var playerAR = playerWidth / playerHeight;
138 |                 var canvasWidth = ((_c = container === null || container === void 0 ? void 0 : container.current) === null || _c === void 0 ? void 0 : _c.offsetWidth) || 1280;
139 |                 var canvasHeight = ((_d = container === null || container === void 0 ? void 0 : container.current) === null || _d === void 0 ? void 0 : _d.offsetHeight) || 1280;
140 |                 var canvasAR = canvasWidth / canvasHeight;
141 |                 var sX = void 0, sY = void 0, sW = void 0, sH = void 0, imgData = void 0;
142 |                 if (playerAR > canvasAR) {
143 |                     sH = playerHeight;
144 |                     sW = playerHeight * canvasAR;
145 |                     sX = (playerWidth - sW) / 2;
146 |                     sY = 0;
147 |                 }
148 |                 else {
149 |                     sW = playerWidth;
150 |                     sH = playerWidth / canvasAR;
151 |                     sX = 0;
152 |                     sY = (playerHeight - sH) / 2;
153 |                 }
154 |                 canvas.current.width = sW;
155 |                 canvas.current.height = sH;
156 |                 if (!context.current) {
157 |                     context.current = canvas.current.getContext('2d', { willReadFrequently: true });
158 |                 }
159 |                 if (context.current && (player === null || player === void 0 ? void 0 : player.current)) {
160 |                     context.current.drawImage(player.current, sX, sY, sW, sH, 0, 0, sW, sH);
161 |                 }
162 |                 switch (type) {
163 |                     case 'imgData':
164 |                         imgData = (_e = context.current) === null || _e === void 0 ? void 0 : _e.getImageData(0, 0, sW, sH);
165 |                         break;
166 |                     default: /* base64url */
167 |                         imgData = canvas.current.toDataURL('image/jpeg');
168 |                         break;
169 |                 }
170 |                 return imgData;
171 |             }
172 |             else {
173 |                 throw new Error(errorMessages.canvas);
174 |             }
175 |         },
176 |         switchCamera: function () {
177 |             if (numberOfCameras < 1) {
178 |                 throw new Error(errorMessages.noCameraAccessible);
179 |             }
180 |             else if (numberOfCameras < 2) {
181 |                 console.error('Error: Unable to switch camera. Only one device is accessible.'); // console only
182 |             }
183 |             var newFacingMode = currentFacingMode === 'user' ? 'environment' : 'user';
184 |             setFacingMode(newFacingMode);
185 |             return newFacingMode;
186 |         },
187 |         getNumberOfCameras: function () {
188 |             return numberOfCameras;
189 |         },
190 |         toggleTorch: function () {
191 |             var torchVal = !torch;
192 |             setTorch(torchVal);
193 |             return torchVal;
194 |         },
195 |         torchSupported: torchSupported,
196 |     }); });
197 |     useEffect(function () {
198 |         initCameraStream(stream, setStream, currentFacingMode, videoSourceDeviceId, setNumberOfCameras, setNotSupported, setPermissionDenied);
199 |     }, [currentFacingMode, videoSourceDeviceId]);
200 |     useEffect(function () {
201 |         switchTorch(false).then(function (success) { return setTorchSupported(success); });
202 |         if (stream && player && player.current) {
203 |             player.current.srcObject = stream;
204 |         }
205 |         return function () {
206 |             if (stream) {
207 |                 stream.getTracks().forEach(function (track) {
208 |                     track.stop();
209 |                 });
210 |             }
211 |         };
212 |     }, [stream]);
213 |     return (React.createElement(Container, { ref: container, aspectRatio: aspectRatio },
214 |         React.createElement(Wrapper, null,
215 |             notSupported ? React.createElement(ErrorMsg, null, errorMessages.noCameraAccessible) : null,
216 |             permissionDenied ? React.createElement(ErrorMsg, null, errorMessages.permissionDenied) : null,
217 |             React.createElement(Cam, { ref: player, id: "video", muted: true, autoPlay: true, playsInline: true, mirrored: currentFacingMode === 'user' ? true : false, onLoadedData: function () {
218 |                     videoReadyCallback();
219 |                 } }),
220 |             React.createElement(Canvas, { ref: canvas }))));
221 | });
222 | Camera.displayName = 'Camera';
223 | var shouldSwitchToCamera = function (currentFacingMode) { return __awaiter(void 0, void 0, void 0, function () {
224 |     var cameras;
225 |     return __generator(this, function (_a) {
226 |         switch (_a.label) {
227 |             case 0:
228 |                 cameras = [];
229 |                 if (!(currentFacingMode === 'environment')) return [3 /*break*/, 2];
230 |                 return [4 /*yield*/, navigator.mediaDevices.enumerateDevices().then(function (devices) {
231 |                         var videoDevices = devices.filter(function (i) { return i.kind == 'videoinput'; });
232 |                         videoDevices.forEach(function (device) {
233 |                             var capabilities = device.getCapabilities();
234 |                             if (capabilities.facingMode && capabilities.facingMode.indexOf('environment') >= 0 && capabilities.deviceId) {
235 |                                 cameras.push(capabilities.deviceId);
236 |                             }
237 |                         });
238 |                     })];
239 |             case 1:
240 |                 _a.sent();
241 |                 _a.label = 2;
242 |             case 2:
243 |                 if (cameras.length > 1) {
244 |                     return [2 /*return*/, cameras.pop()];
245 |                 }
246 |                 return [2 /*return*/, undefined];
247 |         }
248 |     });
249 | }); };
250 | var initCameraStream = function (stream, setStream, currentFacingMode, videoSourceDeviceId, setNumberOfCameras, setNotSupported, setPermissionDenied) { return __awaiter(void 0, void 0, void 0, function () {
251 |     var cameraDeviceId, switchToCamera, constraints, getWebcam;
252 |     var _a;
253 |     return __generator(this, function (_b) {
254 |         switch (_b.label) {
255 |             case 0:
256 |                 // stop any active streams in the window
257 |                 if (stream) {
258 |                     stream.getTracks().forEach(function (track) {
259 |                         track.stop();
260 |                     });
261 |                 }
262 |                 return [4 /*yield*/, shouldSwitchToCamera(currentFacingMode)];
263 |             case 1:
264 |                 switchToCamera = _b.sent();
265 |                 if (switchToCamera) {
266 |                     cameraDeviceId = switchToCamera;
267 |                 }
268 |                 else {
269 |                     cameraDeviceId = videoSourceDeviceId ? { exact: videoSourceDeviceId } : undefined;
270 |                 }
271 |                 constraints = {
272 |                     audio: false,
273 |                     video: {
274 |                         deviceId: cameraDeviceId,
275 |                         facingMode: currentFacingMode,
276 |                         width: { ideal: 1920 },
277 |                         height: { ideal: 1920 },
278 |                     },
279 |                 };
280 |                 if ((_a = navigator === null || navigator === void 0 ? void 0 : navigator.mediaDevices) === null || _a === void 0 ? void 0 : _a.getUserMedia) {
281 |                     navigator.mediaDevices
282 |                         .getUserMedia(constraints)
283 |                         .then(function (stream) {
284 |                         setStream(handleSuccess(stream, setNumberOfCameras));
285 |                     })
286 |                         .catch(function (err) {
287 |                         handleError(err, setNotSupported, setPermissionDenied);
288 |                     });
289 |                 }
290 |                 else {
291 |                     getWebcam = navigator.getUserMedia ||
292 |                         navigator.webkitGetUserMedia ||
293 |                         navigator.mozGetUserMedia ||
294 |                         navigator.mozGetUserMedia ||
295 |                         navigator.msGetUserMedia;
296 |                     if (getWebcam) {
297 |                         getWebcam(constraints, function (stream) { return __awaiter(void 0, void 0, void 0, function () {
298 |                             return __generator(this, function (_a) {
299 |                                 setStream(handleSuccess(stream, setNumberOfCameras));
300 |                                 return [2 /*return*/];
301 |                             });
302 |                         }); }, function (err) {
303 |                             handleError(err, setNotSupported, setPermissionDenied);
304 |                         });
305 |                     }
306 |                     else {
307 |                         setNotSupported(true);
308 |                     }
309 |                 }
310 |                 return [2 /*return*/];
311 |         }
312 |     });
313 | }); };
314 | var handleSuccess = function (stream, setNumberOfCameras) {
315 |     navigator.mediaDevices
316 |         .enumerateDevices()
317 |         .then(function (r) { return setNumberOfCameras(r.filter(function (i) { return i.kind === 'videoinput'; }).length); });
318 |     return stream;
319 | };
320 | var handleError = function (error, setNotSupported, setPermissionDenied) {
321 |     console.error(error);
322 |     //https://developer.mozilla.org/en-US/docs/Web/API/MediaDevices/getUserMedia
323 |     if (error.name === 'PermissionDeniedError') {
324 |         setPermissionDenied(true);
325 |     }
326 |     else {
327 |         setNotSupported(true);
328 |     }
329 | };
330 | 
331 | export { Camera };
332 | 


--------------------------------------------------------------------------------
/example/src/index.css:
--------------------------------------------------------------------------------
 1 | body {
 2 |   margin: 0;
 3 |   padding: 0;
 4 |   font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen",
 5 |     "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue",
 6 |     sans-serif;
 7 |   -webkit-font-smoothing: antialiased;
 8 |   -moz-osx-font-smoothing: grayscale;
 9 | }
10 | 
11 | code {
12 |   font-family: source-code-pro, Menlo, Monaco, Consolas, "Courier New",
13 |     monospace;
14 | }
15 | 


--------------------------------------------------------------------------------
/example/src/index.tsx:
--------------------------------------------------------------------------------
 1 | import React from 'react';
 2 | import ReactDOM from 'react-dom';
 3 | import './index.css';
 4 | import App from './App';
 5 | import * as serviceWorker from './serviceWorker';
 6 | 
 7 | ReactDOM.render(<App />, document.getElementById('root'));
 8 | 
 9 | // If you want your app to work offline and load faster, you can change
10 | // unregister() to register() below. Note this comes with some pitfalls.
11 | // Learn more about service workers: https://bit.ly/CRA-PWA
12 | serviceWorker.unregister();
13 | 


--------------------------------------------------------------------------------
/example/src/react-app-env.d.ts:
--------------------------------------------------------------------------------
1 | /// <reference types="react-scripts" />
2 | 


--------------------------------------------------------------------------------
/example/src/serviceWorker.js:
--------------------------------------------------------------------------------
  1 | // This optional code is used to register a service worker.
  2 | // register() is not called by default.
  3 | 
  4 | // This lets the app load faster on subsequent visits in production, and gives
  5 | // it offline capabilities. However, it also means that developers (and users)
  6 | // will only see deployed updates on subsequent visits to a page, after all the
  7 | // existing tabs open on the page have been closed, since previously cached
  8 | // resources are updated in the background.
  9 | 
 10 | // To learn more about the benefits of this model and instructions on how to
 11 | // opt-in, read https://bit.ly/CRA-PWA
 12 | 
 13 | const isLocalhost = Boolean(
 14 |   window.location.hostname === 'localhost' ||
 15 |     // [::1] is the IPv6 localhost address.
 16 |     window.location.hostname === '[::1]' ||
 17 |     // 127.0.0.1/8 is considered localhost for IPv4.
 18 |     window.location.hostname.match(/^127(?:\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}$/),
 19 | );
 20 | 
 21 | export function register(config) {
 22 |   if (process.env.NODE_ENV === 'production' && 'serviceWorker' in navigator) {
 23 |     // The URL constructor is available in all browsers that support SW.
 24 |     const publicUrl = new URL(process.env.PUBLIC_URL, window.location.href);
 25 |     if (publicUrl.origin !== window.location.origin) {
 26 |       // Our service worker won't work if PUBLIC_URL is on a different origin
 27 |       // from what our page is served on. This might happen if a CDN is used to
 28 |       // serve assets; see https://github.com/facebook/create-react-app/issues/2374
 29 |       return;
 30 |     }
 31 | 
 32 |     window.addEventListener('load', () => {
 33 |       const swUrl = `${process.env.PUBLIC_URL}/service-worker.js`;
 34 | 
 35 |       if (isLocalhost) {
 36 |         // This is running on localhost. Let's check if a service worker still exists or not.
 37 |         checkValidServiceWorker(swUrl, config);
 38 | 
 39 |         // Add some additional logging to localhost, pointing developers to the
 40 |         // service worker/PWA documentation.
 41 |         navigator.serviceWorker.ready.then(() => {
 42 |           console.log(
 43 |             'This web app is being served cache-first by a service ' +
 44 |               'worker. To learn more, visit https://bit.ly/CRA-PWA',
 45 |           );
 46 |         });
 47 |       } else {
 48 |         // Is not localhost. Just register service worker
 49 |         registerValidSW(swUrl, config);
 50 |       }
 51 |     });
 52 |   }
 53 | }
 54 | 
 55 | function registerValidSW(swUrl, config) {
 56 |   navigator.serviceWorker
 57 |     .register(swUrl)
 58 |     .then((registration) => {
 59 |       registration.onupdatefound = () => {
 60 |         const installingWorker = registration.installing;
 61 |         if (installingWorker == null) {
 62 |           return;
 63 |         }
 64 |         installingWorker.onstatechange = () => {
 65 |           if (installingWorker.state === 'installed') {
 66 |             if (navigator.serviceWorker.controller) {
 67 |               // At this point, the updated precached content has been fetched,
 68 |               // but the previous service worker will still serve the older
 69 |               // content until all client tabs are closed.
 70 |               console.log(
 71 |                 'New content is available and will be used when all ' +
 72 |                   'tabs for this page are closed. See https://bit.ly/CRA-PWA.',
 73 |               );
 74 | 
 75 |               // Execute callback
 76 |               if (config && config.onUpdate) {
 77 |                 config.onUpdate(registration);
 78 |               }
 79 |             } else {
 80 |               // At this point, everything has been precached.
 81 |               // It's the perfect time to display a
 82 |               // "Content is cached for offline use." message.
 83 |               console.log('Content is cached for offline use.');
 84 | 
 85 |               // Execute callback
 86 |               if (config && config.onSuccess) {
 87 |                 config.onSuccess(registration);
 88 |               }
 89 |             }
 90 |           }
 91 |         };
 92 |       };
 93 |     })
 94 |     .catch((error) => {
 95 |       console.error('Error during service worker registration:', error);
 96 |     });
 97 | }
 98 | 
 99 | function checkValidServiceWorker(swUrl, config) {
100 |   // Check if the service worker can be found. If it can't reload the page.
101 |   fetch(swUrl)
102 |     .then((response) => {
103 |       // Ensure service worker exists, and that we really are getting a JS file.
104 |       const contentType = response.headers.get('content-type');
105 |       if (response.status === 404 || (contentType != null && contentType.indexOf('javascript') === -1)) {
106 |         // No service worker found. Probably a different app. Reload the page.
107 |         navigator.serviceWorker.ready.then((registration) => {
108 |           registration.unregister().then(() => {
109 |             window.location.reload();
110 |           });
111 |         });
112 |       } else {
113 |         // Service worker found. Proceed as normal.
114 |         registerValidSW(swUrl, config);
115 |       }
116 |     })
117 |     .catch(() => {
118 |       console.log('No internet connection found. App is running in offline mode.');
119 |     });
120 | }
121 | 
122 | export function unregister() {
123 |   if ('serviceWorker' in navigator) {
124 |     navigator.serviceWorker.ready.then((registration) => {
125 |       registration.unregister();
126 |     });
127 |   }
128 | }
129 | 


--------------------------------------------------------------------------------
/example/tsconfig.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "compilerOptions": {
 3 |     "target": "es5",
 4 |     "lib": [
 5 |       "dom",
 6 |       "dom.iterable",
 7 |       "esnext"
 8 |     ],
 9 |     "allowJs": true,
10 |     "skipLibCheck": true,
11 |     "esModuleInterop": true,
12 |     "allowSyntheticDefaultImports": true,
13 |     "strict": true,
14 |     "forceConsistentCasingInFileNames": true,
15 |     "module": "esnext",
16 |     "moduleResolution": "node",
17 |     "resolveJsonModule": true,
18 |     "isolatedModules": true,
19 |     "noEmit": true,
20 |     "jsx": "preserve"
21 |   },
22 |   "include": [
23 |     "src"
24 |   ]
25 | }
26 | 


--------------------------------------------------------------------------------
/package.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "name": "react-camera-pro",
 3 |   "description": "Universal Camera component for React. Designed with focus on Android, iOS cameras and standard webcams.",
 4 |   "version": "1.4.0",
 5 |   "main": "dist/index.cjs.js",
 6 |   "module": "dist/index.esm.js",
 7 |   "keywords": [
 8 |     "camera",
 9 |     "webcam",
10 |     "cam",
11 |     "react",
12 |     "ios",
13 |     "android",
14 |     "mobile",
15 |     "webRTC"
16 |   ],
17 |   "repository": {
18 |     "url": "https://github.com/purple-technology/react-camera-pro",
19 |     "type": "git"
20 |   },
21 |   "homepage": "https://github.com/purple-technology/react-camera-pro#readme",
22 |   "author": "Martin Urban <murban@purple-technology.com>",
23 |   "license": "MIT",
24 |   "types": "dist/index.d.ts",
25 |   "dependencies": {
26 |     "@types/webrtc": "0.0.25",
27 |     "detectrtc": "^1.3.9"
28 |   },
29 |   "devDependencies": {
30 |     "@types/react": "^18.3.3",
31 |     "@types/react-dom": "^18.3.0",
32 |     "@types/styled-components": "^5.1.34",
33 |     "@typescript-eslint/eslint-plugin": "^5.41.0",
34 |     "@typescript-eslint/parser": "^5.41.0",
35 |     "concurrently": "^5.0.2",
36 |     "eslint": "^8.26.0",
37 |     "eslint-config-prettier": "^8.5.0",
38 |     "eslint-plugin-prettier": "^4.2.1",
39 |     "eslint-plugin-react": "^7.31.10",
40 |     "install-peers-cli": "^2.2.0",
41 |     "prepend-file": "^1.3.1",
42 |     "prettier": "^2.7.1",
43 |     "rollup": "^1.29.0",
44 |     "rollup-plugin-typescript2": "^0.25.3",
45 |     "ts-node": "^8.6.2",
46 |     "tslib": "^1.10.0",
47 |     "typescript": "^3.7.5"
48 |   },
49 |   "peerDependencies": {
50 |     "react": "^18.3.1",
51 |     "react-dom": "^18.3.1",
52 |     "styled-components": "^5.1.34"
53 |   },
54 |   "scripts": {
55 |     "build": "rollup -c",
56 |     "build-watch": "rollup -c -w",
57 |     "prepublishOnly": "npm run build",
58 |     "prepare": "install-peers -f && cd example && npm i",
59 |     "start-example": "cd example && npm start",
60 |     "deploy-example": "cd example && npm run deploy",
61 |     "dev": "concurrently --kill-others \"npm run build-watch\" \"npm run start-example\"",
62 |     "test": "ts-node test/test.ts",
63 |     "pretest": "npm run build",
64 |     "test:lint": "eslint ./src/**/*.ts ./src/**/*.tsx ./example/src/**/*.ts ./example/src/**/*.tsx",
65 |     "test:lint:fix": "npm run test:lint -- --fix"
66 |   },
67 |   "files": [
68 |     "dist"
69 |   ]
70 | }
71 | 


--------------------------------------------------------------------------------
/rollup.config.js:
--------------------------------------------------------------------------------
 1 | import typescript from 'rollup-plugin-typescript2';
 2 | import pkg from './package.json';
 3 | 
 4 | export default [
 5 |   {
 6 |     input: 'src/index.ts',
 7 |     external: Object.keys(pkg.peerDependencies || {}),
 8 |     plugins: [
 9 |       typescript({
10 |         typescript: require('typescript'),
11 |       }),
12 |     ],
13 |     output: [
14 |       { file: pkg.main, format: 'cjs' },
15 |       { file: pkg.module, format: 'esm' },
16 |       {
17 |         file: 'example/src/Camera/index.js',
18 |         format: 'es',
19 |         banner: '/* eslint-disable */',
20 |       },
21 |     ],
22 |   },
23 | ];
24 | 


--------------------------------------------------------------------------------
/src/components/Camera/Camera.tsx:
--------------------------------------------------------------------------------
  1 | import React, { useState, useEffect, useRef, useImperativeHandle } from 'react';
  2 | import {
  3 |   CameraProps,
  4 |   FacingMode,
  5 |   Stream,
  6 |   SetStream,
  7 |   SetNumberOfCameras,
  8 |   SetNotSupported,
  9 |   SetPermissionDenied,
 10 | } from './types';
 11 | import { Container, Wrapper, Canvas, Cam, ErrorMsg } from './styles';
 12 | 
 13 | export const Camera = React.forwardRef<unknown, CameraProps>(
 14 |   (
 15 |     {
 16 |       facingMode = 'user',
 17 |       aspectRatio = 'cover',
 18 |       numberOfCamerasCallback = () => null,
 19 |       videoSourceDeviceId = undefined,
 20 |       errorMessages = {
 21 |         noCameraAccessible: 'No camera device accessible. Please connect your camera or try a different browser.',
 22 |         permissionDenied: 'Permission denied. Please refresh and give camera permission.',
 23 |         switchCamera:
 24 |           'It is not possible to switch camera to different one because there is only one video device accessible.',
 25 |         canvas: 'Canvas is not supported.',
 26 |       },
 27 |       videoReadyCallback = () => null,
 28 |     },
 29 |     ref,
 30 |   ) => {
 31 |     const player = useRef<HTMLVideoElement>(null);
 32 |     const canvas = useRef<HTMLCanvasElement>(null);
 33 |     const context = useRef<any | null>(null);
 34 |     const container = useRef<HTMLDivElement>(null);
 35 |     const [numberOfCameras, setNumberOfCameras] = useState<number>(0);
 36 |     const [stream, setStream] = useState<Stream>(null);
 37 |     const [currentFacingMode, setFacingMode] = useState<FacingMode>(facingMode);
 38 |     const [notSupported, setNotSupported] = useState<boolean>(false);
 39 |     const [permissionDenied, setPermissionDenied] = useState<boolean>(false);
 40 |     const [torchSupported, setTorchSupported] = useState<boolean>(false);
 41 |     const [torch, setTorch] = useState<boolean>(false);
 42 |     const mounted = useRef(false);
 43 | 
 44 |     useEffect(() => {
 45 |       mounted.current = true;
 46 | 
 47 |       return () => {
 48 |         mounted.current = false;
 49 |       };
 50 |     }, []);
 51 | 
 52 |     useEffect(() => {
 53 |       numberOfCamerasCallback(numberOfCameras);
 54 |     }, [numberOfCameras]);
 55 | 
 56 |     const switchTorch = async (on = false) => {
 57 |       if (stream && navigator?.mediaDevices && !!mounted.current) {
 58 |         const supportedConstraints = navigator.mediaDevices.getSupportedConstraints();
 59 |         const [track] = stream.getTracks();
 60 |         if (supportedConstraints && 'torch' in supportedConstraints && track) {
 61 |           try {
 62 |             await track.applyConstraints({ advanced: [{ torch: on }] } as MediaTrackConstraintSet);
 63 |             return true;
 64 |           } catch {
 65 |             return false;
 66 |           }
 67 |         }
 68 |       }
 69 | 
 70 |       return false;
 71 |     };
 72 | 
 73 |     useEffect(() => {
 74 |       switchTorch(torch);
 75 |     }, [torch]);
 76 | 
 77 |     useImperativeHandle(ref, () => ({
 78 |       takePhoto: (type?: 'base64url' | 'imgData') => {
 79 |         if (numberOfCameras < 1) {
 80 |           throw new Error(errorMessages.noCameraAccessible);
 81 |         }
 82 | 
 83 |         if (canvas?.current) {
 84 |           const playerWidth = player?.current?.videoWidth || 1280;
 85 |           const playerHeight = player?.current?.videoHeight || 720;
 86 |           const playerAR = playerWidth / playerHeight;
 87 | 
 88 |           const canvasWidth = container?.current?.offsetWidth || 1280;
 89 |           const canvasHeight = container?.current?.offsetHeight || 1280;
 90 |           const canvasAR = canvasWidth / canvasHeight;
 91 | 
 92 |           let sX, sY, sW, sH, imgData;
 93 | 
 94 |           if (playerAR > canvasAR) {
 95 |             sH = playerHeight;
 96 |             sW = playerHeight * canvasAR;
 97 |             sX = (playerWidth - sW) / 2;
 98 |             sY = 0;
 99 |           } else {
100 |             sW = playerWidth;
101 |             sH = playerWidth / canvasAR;
102 |             sX = 0;
103 |             sY = (playerHeight - sH) / 2;
104 |           }
105 | 
106 |           canvas.current.width = sW;
107 |           canvas.current.height = sH;
108 | 
109 |           if (!context.current) {
110 |             context.current = canvas.current.getContext('2d', { willReadFrequently: true });
111 |           }
112 | 
113 |           if (context.current && player?.current) {
114 |             context.current.drawImage(player.current, sX, sY, sW, sH, 0, 0, sW, sH);
115 |           }
116 | 
117 |           switch (type) {
118 |             case 'imgData':
119 |               imgData = context.current?.getImageData(0, 0, sW, sH);
120 |               break;
121 |             default: /* base64url */
122 |               imgData = canvas.current.toDataURL('image/jpeg');
123 |               break;
124 |           }
125 | 
126 |           return imgData;
127 |         } else {
128 |           throw new Error(errorMessages.canvas);
129 |         }
130 |       },
131 |       switchCamera: () => {
132 |         if (numberOfCameras < 1) {
133 |           throw new Error(errorMessages.noCameraAccessible);
134 |         } else if (numberOfCameras < 2) {
135 |           console.error('Error: Unable to switch camera. Only one device is accessible.'); // console only
136 |         }
137 |         const newFacingMode = currentFacingMode === 'user' ? 'environment' : 'user';
138 |         setFacingMode(newFacingMode);
139 |         return newFacingMode;
140 |       },
141 |       getNumberOfCameras: () => {
142 |         return numberOfCameras;
143 |       },
144 |       toggleTorch: () => {
145 |         const torchVal = !torch;
146 |         setTorch(torchVal);
147 |         return torchVal;
148 |       },
149 |       torchSupported: torchSupported,
150 |     }));
151 | 
152 |     useEffect(() => {
153 |       initCameraStream(
154 |         stream,
155 |         setStream,
156 |         currentFacingMode,
157 |         videoSourceDeviceId,
158 |         setNumberOfCameras,
159 |         setNotSupported,
160 |         setPermissionDenied,
161 |         !!mounted.current,
162 |       );
163 |     }, [currentFacingMode, videoSourceDeviceId]);
164 | 
165 |     useEffect(() => {
166 |       switchTorch(false).then((success) => setTorchSupported(success));
167 |       if (stream && player && player.current) {
168 |         player.current.srcObject = stream;
169 |       }
170 |       return () => {
171 |         if (stream) {
172 |           stream.getTracks().forEach((track) => {
173 |             track.stop();
174 |           });
175 |         }
176 |       };
177 |     }, [stream]);
178 | 
179 |     return (
180 |       <Container ref={container} aspectRatio={aspectRatio}>
181 |         <Wrapper>
182 |           {notSupported ? <ErrorMsg>{errorMessages.noCameraAccessible}</ErrorMsg> : null}
183 |           {permissionDenied ? <ErrorMsg>{errorMessages.permissionDenied}</ErrorMsg> : null}
184 |           <Cam
185 |             ref={player}
186 |             id="video"
187 |             muted={true}
188 |             autoPlay={true}
189 |             playsInline={true}
190 |             mirrored={currentFacingMode === 'user' ? true : false}
191 |             onLoadedData={() => {
192 |               videoReadyCallback();
193 |             }}
194 |           ></Cam>
195 |           <Canvas ref={canvas} />
196 |         </Wrapper>
197 |       </Container>
198 |     );
199 |   },
200 | );
201 | 
202 | Camera.displayName = 'Camera';
203 | 
204 | const shouldSwitchToCamera = async (currentFacingMode: FacingMode): Promise<string | undefined> => {
205 |   const cameras: string[] = [];
206 |   if (currentFacingMode === 'environment') {
207 |     await navigator.mediaDevices.enumerateDevices().then((devices) => {
208 |       const videoDevices = devices.filter((i) => i.kind == 'videoinput');
209 |       videoDevices.forEach((device) => {
210 |         const capabilities = (device as InputDeviceInfo).getCapabilities();
211 |         if (capabilities.facingMode && capabilities.facingMode.indexOf('environment') >= 0 && capabilities.deviceId) {
212 |           cameras.push(capabilities.deviceId);
213 |         }
214 |       });
215 |     });
216 |   }
217 | 
218 |   if (cameras.length > 1) {
219 |     return cameras.pop();
220 |   }
221 | 
222 |   return undefined;
223 | };
224 | 
225 | const initCameraStream = async (
226 |   stream: Stream,
227 |   setStream: SetStream,
228 |   currentFacingMode: FacingMode,
229 |   videoSourceDeviceId: string | undefined,
230 |   setNumberOfCameras: SetNumberOfCameras,
231 |   setNotSupported: SetNotSupported,
232 |   setPermissionDenied: SetPermissionDenied,
233 |   isMounted: boolean,
234 | ) => {
235 |   // stop any active streams in the window
236 |   if (stream) {
237 |     stream.getTracks().forEach((track) => {
238 |       track.stop();
239 |     });
240 |   }
241 | 
242 |   let cameraDeviceId;
243 | 
244 |   const switchToCamera = await shouldSwitchToCamera(currentFacingMode);
245 |   if (switchToCamera) {
246 |     cameraDeviceId = switchToCamera;
247 |   } else {
248 |     cameraDeviceId = videoSourceDeviceId ? { exact: videoSourceDeviceId } : undefined;
249 |   }
250 | 
251 |   const constraints = {
252 |     audio: false,
253 |     video: {
254 |       deviceId: cameraDeviceId,
255 |       facingMode: currentFacingMode,
256 |     },
257 |   };
258 | 
259 |   if (navigator?.mediaDevices?.getUserMedia) {
260 |     navigator.mediaDevices
261 |       .getUserMedia(constraints)
262 |       .then((stream) => {
263 |         if (isMounted) {
264 |           setStream(handleSuccess(stream, setNumberOfCameras));
265 |         }
266 |       })
267 |       .catch((err) => {
268 |         handleError(err, setNotSupported, setPermissionDenied);
269 |       });
270 |   } else {
271 |     const getWebcam =
272 |       navigator.getUserMedia ||
273 |       navigator.webkitGetUserMedia ||
274 |       navigator.mozGetUserMedia ||
275 |       navigator.mozGetUserMedia ||
276 |       navigator.msGetUserMedia;
277 |     if (getWebcam) {
278 |       getWebcam(
279 |         constraints,
280 |         async (stream) => {
281 |           if (isMounted) {
282 |             setStream(handleSuccess(stream, setNumberOfCameras));
283 |           }
284 |         },
285 |         (err) => {
286 |           handleError(err as Error, setNotSupported, setPermissionDenied);
287 |         },
288 |       );
289 |     } else {
290 |       setNotSupported(true);
291 |     }
292 |   }
293 | };
294 | 
295 | const handleSuccess = (stream: MediaStream, setNumberOfCameras: SetNumberOfCameras) => {
296 |   navigator.mediaDevices
297 |     .enumerateDevices()
298 |     .then((r) => setNumberOfCameras(r.filter((i) => i.kind === 'videoinput').length));
299 | 
300 |   return stream;
301 | };
302 | 
303 | const handleError = (error: Error, setNotSupported: SetNotSupported, setPermissionDenied: SetPermissionDenied) => {
304 |   console.error(error);
305 | 
306 |   //https://developer.mozilla.org/en-US/docs/Web/API/MediaDevices/getUserMedia
307 |   if (error.name === 'PermissionDeniedError') {
308 |     setPermissionDenied(true);
309 |   } else {
310 |     setNotSupported(true);
311 |   }
312 | };
313 | 


--------------------------------------------------------------------------------
/src/components/Camera/styles.ts:
--------------------------------------------------------------------------------
 1 | import styled from 'styled-components';
 2 | import { AspectRatio } from './types';
 3 | 
 4 | export const Wrapper = styled.div`
 5 |   position: absolute;
 6 |   top: 0;
 7 |   left: 0;
 8 |   width: 100%;
 9 |   height: 100%;
10 | `;
11 | 
12 | export const Container = styled.div<{ aspectRatio: AspectRatio }>`
13 |   width: 100%;
14 |   ${({ aspectRatio }) =>
15 |     aspectRatio === 'cover'
16 |       ? `
17 |     position: absolute;
18 |     bottom: 0;
19 |     top: 0;
20 |     left: 0;
21 |     right: 0;`
22 |       : `
23 |     position: relative;
24 |     padding-bottom: ${100 / aspectRatio}%;`}
25 | `;
26 | 
27 | export const ErrorMsg = styled.div`
28 |   padding: 40px;
29 | `;
30 | 
31 | export const Cam = styled.video<{ mirrored: boolean }>`
32 |   width: 100%;
33 |   height: 100%;
34 |   object-fit: cover;
35 |   z-index: 0;
36 |   transform: rotateY(${({ mirrored }) => (mirrored ? '180deg' : '0deg')});
37 | `;
38 | 
39 | export const Canvas = styled.canvas`
40 |   display: none;
41 | `;
42 | 


--------------------------------------------------------------------------------
/src/components/Camera/types.ts:
--------------------------------------------------------------------------------
 1 | export type FacingMode = 'user' | 'environment';
 2 | export type AspectRatio = 'cover' | number; // for example 16/9, 4/3, 1/1
 3 | export type Stream = MediaStream | null;
 4 | export type SetStream = React.Dispatch<React.SetStateAction<Stream>>;
 5 | export type SetNumberOfCameras = React.Dispatch<React.SetStateAction<number>>;
 6 | export type SetNotSupported = React.Dispatch<React.SetStateAction<boolean>>;
 7 | export type SetPermissionDenied = React.Dispatch<React.SetStateAction<boolean>>;
 8 | export interface CameraProps {
 9 |   facingMode?: FacingMode;
10 |   aspectRatio?: AspectRatio;
11 |   numberOfCamerasCallback?(numberOfCameras: number): void;
12 |   videoSourceDeviceId?: string | undefined;
13 |   errorMessages: {
14 |     noCameraAccessible?: string;
15 |     permissionDenied?: string;
16 |     switchCamera?: string;
17 |     canvas?: string;
18 |   };
19 |   videoReadyCallback?(): void;
20 | }
21 | 
22 | export type CameraType = React.ForwardRefExoticComponent<CameraProps & React.RefAttributes<unknown>> & {
23 |   takePhoto(type?: 'base64url' | 'imgData'): string | ImageData;
24 |   switchCamera(): FacingMode;
25 |   getNumberOfCameras(): number;
26 |   toggleTorch(): boolean;
27 |   torchSupported: boolean;
28 | };
29 | 


--------------------------------------------------------------------------------
/src/index.ts:
--------------------------------------------------------------------------------
1 | import { Camera } from './components/Camera/Camera';
2 | import { CameraType, CameraProps } from './components/Camera/types';
3 | 
4 | export { Camera, CameraType, CameraProps };
5 | 


--------------------------------------------------------------------------------
/test/test.ts:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/purple-technology/react-camera-pro/d0cce40cc444138231b0709539da52c44d183eba/test/test.ts


--------------------------------------------------------------------------------
/tsconfig.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "compilerOptions": {
 3 |     "declaration": true,
 4 |     "declarationDir": "./dist",
 5 |     "strict": true,
 6 |     "allowSyntheticDefaultImports": true,
 7 |     "sourceMap": true,
 8 |     "noUnusedParameters": true,
 9 |     "strictNullChecks": true,
10 |     "moduleResolution": "node",
11 |     "noImplicitAny": true,
12 |     "outDir": "./dist",
13 |     "target": "es5",
14 |     "jsx": "react"
15 |   },
16 |   "include": ["src/**/*"],
17 |   "exclude": ["node_modules"]
18 | }


--------------------------------------------------------------------------------