0.3.4

* Fix typo

* Fix require

* Remove deprecated nextjs

* Update package.json

* Update package.json

.babelrc

@@ -1,22 +1,71 @@
 {
   "presets": [
-    ["env",
+    [
-    {
+      "@babel/env",
-      "targets": {
+      {
-        "browsers": "last 2 versions, > 1%, ie >= 11",
+        "modules": false,
-        "node": "8.0"
+        "targets": {
-      },
+          "browsers": [
-      "modules": false,
+            ">0.25%"
-      "loose": false
+          ]
-    }],
+        },
-    "stage-2"
+        "useBuiltIns": "usage"
+      }
+    ],
+    "@babel/typescript"
   ],
+  "env": {
+    "development": {
+      "plugins": [
+        "@babel/transform-runtime"
+      ]
+    },
+    "production": {
+      "plugins": [
+        "@babel/transform-runtime",
+        "transform-remove-console"
+      ]
+    },
+    "test": {
+      "presets": [
+        [
+          "@babel/env",
+          {
+            "modules": "commonjs",
+            "targets": {
+              "node": "current"
+            }
+          }
+        ],
+        "@babel/typescript"
+      ]
+    }
+  },
   "plugins": [
-    ["transform-runtime", {
+    "@babel/plugin-syntax-dynamic-import",
-      "helpers": false,
+    "@babel/plugin-syntax-import-meta",
-      "polyfill": false,
+    "@babel/plugin-proposal-class-properties",
-      "regenerator": false,
+    "@babel/plugin-proposal-json-strings",
-      "moduleName": "babel-runtime"
+    [
-    }]
+      "@babel/plugin-proposal-decorators",
+      {
+        "legacy": true
+      }
+    ],
+    "@babel/plugin-proposal-function-sent",
+    "@babel/plugin-proposal-export-namespace-from",
+    "@babel/plugin-proposal-numeric-separator",
+    "@babel/plugin-proposal-throw-expressions",
+    "@babel/plugin-proposal-export-default-from",
+    "@babel/plugin-proposal-logical-assignment-operators",
+    "@babel/plugin-proposal-optional-chaining",
+    [
+      "@babel/plugin-proposal-pipeline-operator",
+      {
+        "proposal": "minimal"
+      }
+    ],
+    "@babel/plugin-proposal-nullish-coalescing-operator",
+    "@babel/plugin-proposal-do-expressions"
   ]
-}
+}

.editorconfig

@@ -1,12 +1,7 @@
 root = true
-
+ [*]
-[{*.js,*.css,*.html}]
-indent_style = space
-indent_size = 4
-end_of_line = lf
-charset = utf-8
 insert_final_newline = true
-
+ [*.{js,ts}]
-[{package.json,.*rc,*.yml}]
 indent_style = space
 indent_size = 2
+charset = utf-8

.eslintignore

@@ -1 +0,0 @@
-test

.eslintrc.js

@@ -1,45 +0,0 @@
-module.exports = {
-    root: true,
-
-    parserOptions: {
-        sourceType: 'module',
-    },
-
-    env: {
-        browser: true,
-        es6: true,
-        node: true,
-    },
-
-    extends: ['airbnb-base'],
-
-    rules: {
-        'no-shadow': [
-            'error',
-            {
-                allow: ['state'],
-            },
-        ],
-        // 'import/extensions': 'off',
-        'import/extensions': [
-            'error',
-            'always',
-            {
-                js: 'never',
-            },
-        ],
-        'import/no-unresolved': 'off',
-        'no-param-reassign': 'off',
-        'consistent-return': 'off',
-        'global-require': 'off',
-        'import/no-dynamic-require': 'off',
-        'import/no-extraneous-dependencies': 'off',
-
-        // 4 行空格缩进
-        indent: ['error', 4, { SwitchCase: 1 }],
-
-        'max-len': ['error', { code: 150 }],
-
-        'operator-linebreak': 0,
-    },
-};

.github/workflows/ci.yml

@@ -0,0 +1,108 @@
+name: CI
+
+env:
+  NODE_OPTIONS: --max-old-space-size=6144
+  # install playwright binary manually (because pnpm only runs install script once)
+  PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD: "1"
+
+on:
+  push:
+    branches:
+      - main
+      - master
+      - release/*
+      - feat/*
+      - fix/*
+      - perf/*
+      - v1
+      - v2
+  pull_request:
+  workflow_dispatch:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.number || github.sha }}
+  cancel-in-progress: true
+
+jobs:
+  build:
+    timeout-minutes: 20
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest]
+        node_version: [16]
+      fail-fast: false
+
+    name: "Build&Test: node-${{ matrix.node_version }}, ${{ matrix.os }}"
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Install pnpm
+        uses: pnpm/action-setup@v2.2.2
+
+      - name: Set node version to ${{ matrix.node_version }}
+        uses: actions/setup-node@v3
+        with:
+          node-version: ${{ matrix.node_version }}
+          cache: "pnpm"
+
+      - name: Install deps
+        run: pnpm install
+
+      - name: Build
+        run: pnpm run build
+
+  test:
+    timeout-minutes: 10
+    runs-on: ubuntu-latest
+    name: "Lint: node-16, ubuntu-latest"
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - name: Install pnpm
+        uses: pnpm/action-setup@v2.2.2
+
+      - name: Set node version to 16
+        uses: actions/setup-node@v3
+        with:
+          node-version: 16
+          cache: "pnpm"
+
+      - name: Install deps
+        run: pnpm install
+
+      - name: Build
+        run: pnpm run build
+
+      - name: Test
+        run: pnpm run test
+
+  lint:
+    timeout-minutes: 10
+    runs-on: ubuntu-latest
+    name: "Lint: node-16, ubuntu-latest"
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - name: Install pnpm
+        uses: pnpm/action-setup@v2.2.2
+
+      - name: Set node version to 16
+        uses: actions/setup-node@v3
+        with:
+          node-version: 16
+          cache: "pnpm"
+
+      - name: Install deps
+        run: pnpm install
+
+      - name: Build
+        run: pnpm run build
+
+      - name: Check formatting
+        run: pnpm run prettier

.gitignore

@@ -1,3 +1,13 @@
 node_modules
+.DS_STORE
+lerna-debug.log
+yarn-error.log
 dist
-.DS_Store
+includes
+tsconfig.tsbuildinfo
+.env
+coverage
+yarn.lock
+.rpt2_cache
+
+demo/lib/index.min.js

.npmignore

@@ -1,11 +1,29 @@
 node_modules
-config
+*.map
-demo
+tests
-src
 test
-.babelrc
+__tests__
+__test__
+.github
+.env*
+jest.config.js
+.eslintrc.js
+.eslintignore
+.prettierignore
+prettier.config.js
+release.config.js
+commitlint.config.js
 .editorconfig
-.travis.yml
+lerna.json
-CHANGELOG.md
+tsconfig.tsbuildinfo
-package-lock.json
+tsconfig.json
-TODO.md
+tsconfig.base.json
+.rpt2_cache
+.vscode
+/demo
+/doc
+/scripts
+tslint.json
+yarn-error.log
+.babelrc
+yarn.lock

.npmrc

@@ -0,0 +1,3 @@
+shamefully-hoist=true
+strict-peer-dependencies=true
+auto-install-peers=true

.prettierignore

@@ -0,0 +1,9 @@
+
+
+# Development folders and files #
+#################################
+.tmp/
+node_modules/
+package.json
+.travis.yml
+dist

.prettierrc

@@ -0,0 +1,14 @@
+{
+  "printWidth": 80,
+  "singleQuote": true,
+  "trailingComma": "all",
+  "arrowParens": "always",
+  "overrides": [
+    {
+      "files": "*.json",
+      "options": {
+        "parser": "json"
+      }
+    }
+  ]
+}

.travis.yml

@@ -1,3 +0,0 @@
-language: node_js
-node_js:
-  - "8"

CHANGELOG.md

@@ -1 +0,0 @@
-# Change Log

README.md

@@ -1,8 +1,8 @@
 # [qrcode-decoder](https://github.com/yugasun/qrcode-decoder)
 
-[![license](https://img.shields.io/badge/license-MIT-blue.svg)](https://github.com/yugasun/qrcode-decoder/blob/master/LICENSE)
+[![npm](https://img.shields.io/npm/v/qrcode-decoder)](http://www.npmtrends.com/qrcode-decoder)
-[![Build Status](https://travis-ci.org/yugasun/qrcode-decoder.svg?branch=master)](https://travis-ci.org/yugasun/qrcode-decoder)
 [![NPM downloads](http://img.shields.io/npm/dm/qrcode-decoder.svg?style=flat-square)](http://www.npmtrends.com/qrcode-decoder)
+[![license](https://img.shields.io/badge/license-MIT-blue.svg)](https://github.com/yugasun/qrcode-decoder/blob/master/LICENSE)
 
 [简体中文](./README.zh-CN.md) | English
 
@@ -23,10 +23,10 @@ A tool for decoding qrcode.
 
 ## Guide
 
-Use `npm` to install.
+Use `pnpm` to install.
 
 ```bash
-$ npm install --save qrcode-decoder
+$ pnpm install --save qrcode-decoder
 ```
 
 Using in webpack:
@@ -38,7 +38,7 @@ import QrcodeDecoder from 'qrcode-decoder';
 Using in browser:
 
 ```html
-<script src="node_modules/qrcode-decoder/dist/index.aio.js"></script>
+<script src="https://unpkg.com/qrcode-decoder@0.3.1/dist/index.min.js"></script>
 ```
 
 ## Demo
@@ -57,7 +57,7 @@ Decodes an image from url or an `<img>` element with a `src` attribute set.
 
 ```javascript
 qr.decodeFromImage(img).then((res) => {
-    console.log(res);
+  console.log(res);
 });
 ```
 
@@ -69,7 +69,7 @@ Decodes directly from a video with a well specified `src` attribute
 
 ```javascript
 qr.decodeFromVideo(videoElement).then((res) => {
-    console.log(res);
+  console.log(res);
 });
 ```
 
@@ -81,7 +81,7 @@ Decodes from a videoElement.
 
 ```javascript
 qr.decodeFromCamera(videoElem).then((res) => {
-    console.log(res);
+  console.log(res);
 });
 ```
 
@@ -96,31 +96,31 @@ Stops the current `qr` from searching for a QRCode.
 Install dependencies:
 
 ```bash
-$ npm install
+$ pnpm install
 ```
 
 Build code:
 
 ```bash
-$ npm run build
+$ pnpm run build
 ```
 
 Run unit test:
 
 ```bash
-$ npm test
+$ pnpm test
 ```
 
 Modify version in `package.json`, run `release` script:
 
 ```bash
-$ npm run release
+$ pnpm run release
 ```
 
 Publish
 
 ```bash
-$ npm publish
+$ pnpm publish
 ```
 
 ## License

README.zh-CN.md

@@ -1,8 +1,8 @@
 # [qrcode-decoder](https://github.com/yugasun/qrcode-decoder)
 
-[![license](https://img.shields.io/badge/license-MIT-blue.svg)](https://github.com/yugasun/qrcode-decoder/blob/master/LICENSE)
+[![npm](https://img.shields.io/npm/v/qrcode-decoder)](http://www.npmtrends.com/qrcode-decoder)
-[![Build Status](https://travis-ci.org/yugasun/qrcode-decoder.svg?branch=master)](https://travis-ci.org/yugasun/qrcode-decoder)
 [![NPM downloads](http://img.shields.io/npm/dm/qrcode-decoder.svg?style=flat-square)](http://www.npmtrends.com/qrcode-decoder)
+[![license](https://img.shields.io/badge/license-MIT-blue.svg)](https://github.com/yugasun/qrcode-decoder/blob/master/LICENSE)
 
 简体中文 | [English](./README.md)
 
@@ -23,10 +23,10 @@
 
 ## 使用者指南
 
-通过 npm 下载安装代码
+通过 pnpm 下载安装代码
 
 ```bash
-$ npm install --save qrcode-decoder
+$ pnpm install --save qrcode-decoder
 ```
 
 如果你是 webpack 等环境
@@ -38,7 +38,7 @@ import QrcodeDecoder from 'qrcode-decoder';
 如果你是浏览器环境
 
 ```html
-<script src="node_modules/qrcode-decoder/dist/index.aio.js"></script>
+<script src="https://unpkg.com/qrcode-decoder@0.3.1/dist/index.min.js"></script>
 ```
 
 ## 示例
@@ -57,7 +57,7 @@ var qr = new QrcodeDecoder();
 
 ```javascript
 qr.decodeFromImage(img).then((res) => {
-    console.log(res);
+  console.log(res);
 });
 ```
 
@@ -69,7 +69,7 @@ qr.decodeFromImage(img).then((res) => {
 
 ```javascript
 qr.decodeFromVideo(videoElement).then((res) => {
-    console.log(res);
+  console.log(res);
 });
 ```
 
@@ -81,7 +81,7 @@ qr.decodeFromVideo(videoElement).then((res) => {
 
 ```javascript
 qr.decodeFromCamera(videoElem).then((res) => {
-    console.log(res);
+  console.log(res);
 });
 ```
 
@@ -96,31 +96,31 @@ qr.decodeFromCamera(videoElem).then((res) => {
 首次运行需要先安装依赖
 
 ```bash
-$ npm install
+$ pnpm install
 ```
 
 一键打包生成生产代码
 
 ```bash
-$ npm run build
+$ pnpm run build
 ```
 
 运行单元测试，浏览器环境需要手动测试，位于`test/browser`
 
 ```bash
-$ npm test
+$ pnpm test
 ```
 
 修改 package.json 中的版本号，修改 README.md 中的版本号，修改 CHANGELOG.md，然后发布新版
 
 ```bash
-$ npm run release
+$ pnpm run release
 ```
 
-将新版本发布到 npm
+将新版本发布到 pnpm
 
 ```bash
-$ npm publish
+$ pnpm publish
 ```
 
 ## License

TODO.md

@@ -2,4 +2,4 @@
 
 Rewrite unit test.
 
-- [] Rewrite unit test.
+- [x] Rewrite unit test.

__tests__/index.test.ts

@@ -0,0 +1,26 @@
+import QrcodeDecoder from '../';
+
+describe('QrcodeDecoder', () => {
+  test('use', async () => {
+    const res = await import('../dist');
+
+    expect(res.default).toEqual(QrcodeDecoder);
+  });
+
+  test('new QrcodeDecoder()', async () => {
+    const qr = new QrcodeDecoder();
+
+    expect(qr).toBeDefined();
+    expect(qr.videoConstraints).toEqual({
+      video: {
+        width: { min: 360, ideal: 720, max: 1080 },
+        height: { min: 360, ideal: 720, max: 1080 },
+        facingMode: { exact: 'environment' },
+      },
+      audio: false,
+    });
+    expect(qr.decodeFromImage).toBeDefined();
+    expect(qr.decodeFromCamera).toBeDefined();
+    expect(qr.decodeFromVideo).toBeDefined();
+  });
+});

config/rollup.config.aio.js

@@ -1,52 +0,0 @@
-// rollup.config.js
-
-import babel from 'rollup-plugin-babel';
-import nodeResolve from 'rollup-plugin-node-resolve';
-import commonjs from 'rollup-plugin-commonjs';
-import { uglify } from 'rollup-plugin-uglify';
-import common from './rollup';
-
-const prod = process.env.NODE_ENV;
-
-export default {
-    input: 'src/index.js',
-    output: {
-        file: prod ? 'dist/index.aio.min.js' : 'dist/index.aio.js',
-        format: 'umd',
-        // 如果不同时使用 export 与 export default 可打开legacy
-        // legacy: true,
-        // name: common.name,
-        name: 'QrcodeDecoder',
-        banner: common.banner,
-    },
-    plugins: [
-        nodeResolve({
-            main: true,
-        }),
-        commonjs({
-            include: 'node_modules/**',
-        }),
-        babel({
-            runtimeHelpers: true,
-            exclude: 'node_modules/**',
-        }),
-        prod &&
-            uglify({
-                compress: {
-                    drop_debugger: true,
-                    drop_console: true,
-                },
-                output: {
-                    comments: (node, comment) => {
-                        if (comment.type === 'comment2') {
-                            // multiline comment
-                            return /@preserve|@license|@cc_on/i.test(
-                                comment.value,
-                            );
-                        }
-                        return false;
-                    },
-                },
-            }),
-    ],
-};

config/rollup.config.esm.js

@@ -1,7 +0,0 @@
-import config from './rollup.config';
-
-// ES output
-config.output.format = 'es';
-config.output.file = 'dist/index.esm.js';
-
-export default config;

config/rollup.config.js

@@ -1,21 +0,0 @@
-// rollup.config.js
-
-import babel from 'rollup-plugin-babel';
-import common from './rollup';
-
-export default {
-    input: 'src/index.js',
-    output: {
-        file: 'dist/index.js',
-        format: 'cjs',
-        // 如果不同时使用 export 与 export default 可打开legacy
-        // legacy: true,
-        banner: common.banner,
-    },
-    plugins: [
-        babel({
-            runtimeHelpers: true,
-            exclude: 'node_modules/**',
-        }),
-    ],
-};

config/rollup.js

@@ -1,18 +0,0 @@
-const pkg = require('../package.json');
-
-// 兼容 qrcode-decoder 和 @yugasun/qrcode-decoder
-const name = pkg.name.split('/').pop();
-const { version } = pkg;
-
-const banner = `/* @preserve
- * qrcode-decoder ${version} (https://github.com/yugasun/qrcode-decoder)
- * API https://github.com/yugasun/qrcode-decoder/blob/master/doc/api.md
- * Copyright 2017-${new Date().getFullYear()} yugasun. All Rights Reserved
- * Licensed under MIT (https://github.com/yugasun/qrcode-decoder/blob/master/LICENSE)
- */
-`;
-
-export default {
-    name,
-    banner,
-};

demo/camera.html

@@ -1,39 +1,54 @@
 <!DOCTYPE html>
 <html>
-    <head>
-        <title>QrcodeDecoder - Camera</title>
-    </head>
-    <body>
-        <button id="start">Start</button> <button id="stop">Stop</button><br />
-        <span id="result">Click start to scan qrcode.</span><br />
-        <hr />
-        <video id="video" autoplay></video>
 
-        <script src="./index.aio.min.js"></script>
+<head>
-        <script type="text/javascript">
+  <meta charset="UTF-8" />
-            function main() {
+  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-                var qr = new QrcodeDecoder();
+  <meta http-equiv="X-UA-Compatible" content="ie=edge" />
-                var video = document.querySelector('#video');
+  <title>QrcodeDecoder - Camera</title>
-                var start = document.querySelector('#start');
+</head>
-                var stop = document.querySelector('#stop');
-                var result = document.querySelector('#result');
-                async function startScan() {
-                    if (!qr.isCanvasSupported()) {
-                        alert("Your browser doesn't match the required specs.");
-                        throw new Error('Canvas and getUserMedia are required');
-                    }
 
-                    let code = await qr.decodeFromCamera(video);
+<body>
-                    console.log('code', code);
+  <button id="start">Start</button> <button id="stop">Stop</button><br />
-                    result.innerText = "Result: " + code.data;
+  <span id="result">Click start to scan qrcode.</span><br />
-                }
+  <hr />
-                start.onclick = startScan;
+  <video id="video" autoplay></video>
+
+  <script src="./lib/vconsole.min.js"></script>
+  <script src="./lib/index.min.js"></script>
+  <script type="text/javascript">
+    var vConsole = new VConsole();
+    console.log('Hello world');
+    function main() {
+      var qr = new QrcodeDecoder.default();
+      var video = document.querySelector('#video');
+      var start = document.querySelector('#start');
+      var stop = document.querySelector('#stop');
+      var result = document.querySelector('#result');
+      async function startScan() {
+        if (!qr.isCanvasSupported()) {
+          alert("Your browser doesn't match the required specs.");
+          throw new Error('Canvas and getUserMedia are required');
+        }
+
+        let code = await qr.decodeFromCamera(video,
+          // you can customize your camera size like below
+          // {
+          //   width: 400,
+          //   height: 400,
+          // }
+        );
+        console.log('code', code);
+        result.innerText = 'Result: ' + code.data;
+      }
+      start.onclick = startScan;
+
+      stop.onclick = function () {
+        qr.stop();
+      };
+    }
+    main();
+  </script>
+</body>
 
-                stop.onclick = function() {
-                    qr.stop();
-                };
-            }
-            main();
-        </script>
-    </body>
 </html>

demo/image.html

@@ -1,52 +1,66 @@
 <!DOCTYPE html>
 <html lang="en">
-    <head>
-        <meta charset="UTF-8" />
-        <title>QrcodeDecoder - Image</title>
-    </head>
-    <body>
-        <section>
-            <h3>Same domain image</h3>
-            <img src="./assets/qrcode.png" alt="qr code" /><br>
-            <button id="decode1">Decode!</button><br>
-            <span id="result1"></span><br>
-        </section>
-        <hr/>
-        <section>
-            <h3>Different domain image</h3>
-            <button id="decode2">Decode!</button><br>
-            <span id="result2"></span><br>
-        </section>
-        <script src="./index.aio.min.js"></script>
-        <script type="module">
-            function main() {
-                var qr = new QrcodeDecoder();
 
-                var btn1 = document.querySelector('button#decode1');
+<head>
-                var btn2 = document.querySelector('button#decode2');
+  <meta charset="UTF-8" />
-                var result1 = document.querySelector('#result1');
+  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-                var result2 = document.querySelector('#result2');
+  <meta http-equiv="X-UA-Compatible" content="ie=edge" />
-                var img = document.querySelector('img');
+  <title>QrcodeDecoder - Image</title>
+</head>
 
-                btn1.onclick = async () => {
+<body>
-                    // you can also decode from image path
+  <section>
-                    // const code = await qr.decodeFromImage('./assets/qrcode.png');
+    <h3>Same domain image</h3>
-                    const code = await qr.decodeFromImage(img);
+    <img id="img1" src="./assets/qrcode.png" alt="qr code" /><br />
-                    console.log(code);
+    <button id="decode1">Decode!</button><br />
-                    result1.innerText = code.data;
+    <span id="result1"></span><br />
-                };
+  </section>
+  <hr />
+  <section>
+    <h3>Different domain image</h3>
+    <input
+      id="img2"
+      value="https://yugasun.com/static/wechat.jpg"
+      style="width: 400px" /><br />
+    <button id="decode2">Decode!</button><br />
+    <span id="result2"></span><br />
+  </section>
+  <script src="./lib/vconsole.min.js"></script>
+  <script src="./lib/index.min.js"></script>
+  <script type="module">
+    var vConsole = new VConsole();
+    function main() {
+      var qr = new QrcodeDecoder.default();
+
+      var btn1 = document.querySelector('button#decode1');
+      var btn2 = document.querySelector('button#decode2');
+      var result1 = document.querySelector('#result1');
+      var result2 = document.querySelector('#result2');
+      var img1 = document.querySelector('#img1');
+      var img2 = document.querySelector('#img2');
+
+      btn1.onclick = async () => {
+        // you can also decode from image path
+        // const code = await qr.decodeFromImage('./assets/qrcode.png');
+        const code = await qr.decodeFromImage(img1);
+        console.log(code);
+        result1.innerText = code.data;
+      };
+
+      btn2.onclick = async () => {
+        // you can also decode from image path
+        // const code = await qr.decodeFromImage('./assets/qrcode.png');
+        const code = await qr.decodeFromImage(img2.value, {
+          crossOrigin: 'anonymous',
+        });
+        console.log(code);
+        result2.innerText = code.data;
+      };
+    }
+    window.onload = () => {
+      main();
+    };
+  </script>
+</body>
 
-                btn2.onclick = async () => {
-                    // you can also decode from image path
-                    // const code = await qr.decodeFromImage('./assets/qrcode.png');
-                    const code = await qr.decodeFromImage('https://yugasun.com/static/wechat.jpg', {
-                        crossOrigin: 'anonymous',
-                    });
-                    console.log(code);
-                    result2.innerText = code.data;
-                };
-            }
-            main();
-        </script>
-    </body>
 </html>

demo/index.html

@@ -1,18 +1,18 @@
 <!DOCTYPE html>
 <html lang="en">
-  <head>
+    <head>
-    <meta charset="UTF-8">
+        <meta charset="UTF-8" />
-    <title>QrcodeDecoder</title>
+        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  </head>
+        <meta http-equiv="X-UA-Compatible" content="ie=edge" />
-  <body>
+        <title>QrcodeDecoder</title>
-
+    </head>
-    <h1>QrcodeDecoder</h1>
+    <body>
-    <h2>Examples</h2>
+        <h1>QrcodeDecoder</h1>
-    <ul>
+        <h2>Examples</h2>
-        <li><a href="image.html">Image</a></li>
+        <ul>
-        <li><a href="video.html">Video</a></li>
+            <li><a href="image.html">Image</a></li>
-        <li><a href="camera.html">Camera</a></li>
+            <li><a href="video.html">Video</a></li>
-    </ul>
+            <li><a href="camera.html">Camera</a></li>
-
+        </ul>
-  </body>
+    </body>
 </html>

demo/video.html

@@ -1,39 +1,45 @@
 <!DOCTYPE html>
 <html lang="en">
-    <head>
-        <meta charset="UTF-8" />
-        <title>QrcodeDecoder - Video</title>
-    </head>
-    <body>
-        <button id="start">Start</button> <button id="stop">Stop</button><br />
-        <span id="result">Click start to scan qrcode.</span><br />
 
-        <video src="./assets/qrcode-video.mp4"></video>
+<head>
+  <meta charset="UTF-8" />
+  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+  <meta http-equiv="X-UA-Compatible" content="ie=edge" />
+  <title>QrcodeDecoder - Video</title>
+</head>
 
-        <script src="./index.aio.min.js"></script>
+<body>
-        <script type="text/javascript">
+  <button id="start">Start</button> <button id="stop">Stop</button><br />
-            function main() {
+  <span id="result">Click start to scan qrcode.</span><br />
-                var video = document.querySelector('video');
-                var result = document.querySelector('#result');
-                var start = document.querySelector('#start');
-                var stop = document.querySelector('#stop');
-                var qr = new QrcodeDecoder();
 
-                start.onclick = startScan;
+  <video src="./assets/qrcode-video.mp4"></video>
+  <script src="./lib/vconsole.min.js"></script>
+  <script src="./lib/index.min.js"></script>
+  <script type="text/javascript">
+    var vConsole = new VConsole();
+    function main() {
+      var video = document.querySelector('video');
+      var result = document.querySelector('#result');
+      var start = document.querySelector('#start');
+      var stop = document.querySelector('#stop');
+      var qr = new QrcodeDecoder.default();
 
-                stop.onclick = function() {
+      start.onclick = startScan;
-                    qr.stop();
+
-                    video.pause();
+      stop.onclick = function () {
-                };
+        qr.stop();
+        video.pause();
+      };
+
+      async function startScan() {
+        video.play();
+        const code = await qr.decodeFromVideo(video);
+        console.log('code', code);
+        result.innerText = 'Result: ' + code.data;
+      }
+    }
+    main();
+  </script>
+</body>
 
-                async function startScan() {
-                    video.play();
-                    const code = await qr.decodeFromVideo(video);
-                    console.log('code', code);
-                    result.innerText = 'Result: ' + code.data;
-                }
-            }
-            main();
-        </script>
-    </body>
 </html>

doc/api.md

@@ -14,7 +14,7 @@ Decodes an image from url or an `<img>` element with a `src` attribute set.
 
 ```javascript
 qr.decodeFromImage(img).then((res) => {
-    console.log(res);
+  console.log(res);
 });
 ```
 
@@ -26,7 +26,7 @@ Decodes directly from a video with a well specified `src` attribute
 
 ```javascript
 qr.decodeFromVideo(videoElement).then((res) => {
-    console.log(res);
+  console.log(res);
 });
 ```
 
@@ -38,7 +38,7 @@ Decodes from a videoElement.
 
 ```javascript
 qr.decodeFromCamera(videoElem).then((res) => {
-    console.log(res);
+  console.log(res);
 });
 ```
 
@@ -46,4 +46,4 @@ qr.decodeFromCamera(videoElem).then((res) => {
 
 #### stop()
 
-Stops the current `qr` from searching for a QRCode.
+Stops the current `qr` from searching for a QRCode.

doc/api.zh-CN.md

@@ -14,7 +14,7 @@ var qr = new QrcodeDecoder();
 
 ```javascript
 qr.decodeFromImage(img).then((res) => {
-    console.log(res);
+  console.log(res);
 });
 ```
 
@@ -26,7 +26,7 @@ qr.decodeFromImage(img).then((res) => {
 
 ```javascript
 qr.decodeFromVideo(videoElement).then((res) => {
-    console.log(res);
+  console.log(res);
 });
 ```
 
@@ -38,7 +38,7 @@ qr.decodeFromVideo(videoElement).then((res) => {
 
 ```javascript
 qr.decodeFromCamera(videoElem).then((res) => {
-    console.log(res);
+  console.log(res);
 });
 ```
 
@@ -46,4 +46,4 @@ qr.decodeFromCamera(videoElem).then((res) => {
 
 #### stop()
 
-停止当前视频捕获。
+停止当前视频捕获。

jest.config.js

@@ -0,0 +1,16 @@
+const isDebug = process.env.DEBUG === 'true';
+
+module.exports = {
+  verbose: true,
+  silent: !isDebug,
+  transform: {
+    '^.+\\.tsx?$': 'ts-jest',
+  },
+  testTimeout: 60000,
+  transform: {
+    '^.+\\.tsx?$': 'ts-jest',
+  },
+  testRegex: '(/__tests__/.*\\.(test|spec))\\.tsx?$',
+  testPathIgnorePatterns: ['/node_modules/', '/dist/', '/demo/'],
+  moduleFileExtensions: ['ts', 'tsx', 'js', 'jsx', 'json', 'node'],
+};

package.json

@@ -1,59 +1,100 @@
 {
   "name": "qrcode-decoder",
-  "version": "0.1.2",
+  "version": "0.3.4",
   "description": "Tool for decoding qrcode",
   "main": "dist/index.js",
-  "jsnext:main": "dist/index.esm.js",
+  "browser": "dist/index.min.js",
+  "unpkg": "dist/index.min.js",
   "module": "dist/index.esm.js",
+  "types": "dist/index.d.ts",
   "sideEffects": false,
+  "packageManager": "pnpm@7.11.0",
   "scripts": {
-    "clean": "rimraf ./dist",
+    "build": "ts-node -P scripts/tsconfig.json scripts/bundle.ts commonjs,esm,aio && pnpm run dts && pnpm run copy-file",
-    "lint": "eslint src",
+    "dts": "tsc src/index.ts --declaration --emitDeclarationOnly --outDir './dist'",
-    "build:self": "rollup -c config/rollup.config.js",
+    "prettier": "prettier --check '**/*.{ts,tsx,md}' --config .prettierrc",
-    "build:esm": "rollup -c config/rollup.config.esm.js",
+    "prettier:fix": "prettier --write '**/*.{ts,tsx,md}' --config .prettierrc",
-    "build:aio": "rollup -c config/rollup.config.aio.js",
+    "test": "jest",
-    "build:aio.min": "NODE_ENV=production npm run build:aio",
+    "codecov": "jest --coverage && codecov",
-    "build": "npm run clean && npm run build:self && npm run build:esm && npm run build:aio && npm run build:aio.min && npm run copy-file",
+    "copy-file": "cp dist/index.min.js demo/lib",
-    "copy-file": "cp dist/index.aio.min.js demo/",
-    "test": "npm run lint && npm run build",
-    "zuul-test": "zuul --local 8080 --ui mocha-bdd -- test/test.js",
     "release": "git commit -am $npm_package_version && git tag $npm_package_version && git push && git push --tags",
-    "deploy": "gh-pages -d demo --remote origin"
+    "pages": "gh-pages -d demo --remote origin",
+    "demo": "http-server demo -c-1"
+  },
+  "husky": {
+    "hooks": {
+      "pre-commit": "lint-staged"
+    }
+  },
+  "lint-staged": {
+    "*.{ts,tsx,md}": [
+      "pnpm run prettier:fix",
+      "git add ."
+    ]
+  },
+  "devDependencies": {
+    "@babel/cli": "^7.7.0",
+    "@babel/core": "^7.7.2",
+    "@babel/plugin-proposal-class-properties": "^7.7.0",
+    "@babel/plugin-proposal-decorators": "^7.7.0",
+    "@babel/plugin-proposal-do-expressions": "^7.6.0",
+    "@babel/plugin-proposal-export-default-from": "^7.5.2",
+    "@babel/plugin-proposal-export-namespace-from": "^7.5.2",
+    "@babel/plugin-proposal-function-sent": "^7.7.0",
+    "@babel/plugin-proposal-json-strings": "^7.2.0",
+    "@babel/plugin-proposal-logical-assignment-operators": "^7.2.0",
+    "@babel/plugin-proposal-nullish-coalescing-operator": "^7.4.4",
+    "@babel/plugin-proposal-numeric-separator": "^7.2.0",
+    "@babel/plugin-proposal-optional-chaining": "^7.6.0",
+    "@babel/plugin-proposal-pipeline-operator": "^7.5.0",
+    "@babel/plugin-proposal-throw-expressions": "^7.2.0",
+    "@babel/plugin-syntax-dynamic-import": "^7.2.0",
+    "@babel/plugin-syntax-import-meta": "^7.2.0",
+    "@babel/plugin-transform-runtime": "^7.6.2",
+    "@babel/polyfill": "^7.7.0",
+    "@babel/preset-env": "^7.7.1",
+    "@babel/preset-typescript": "^7.7.2",
+    "@babel/runtime": "^7.7.2",
+    "@types/jest": "^24.9.0",
+    "@types/node": "^13.1.8",
+    "chalk": "^3.0.0",
+    "codecov": "^3.8.1",
+    "cross-env": "^6.0.3",
+    "fancy-log": "^1.3.3",
+    "gh-pages": "^3.1.0",
+    "http-server": "^14.1.0",
+    "husky": "^3.0.9",
+    "jest": "^24.9.0",
+    "lint-staged": "^9.5.0",
+    "prettier": "^1.18.2",
+    "rollup": "^2.38.1",
+    "rollup-plugin-commonjs": "^8.3.0",
+    "rollup-plugin-json": "^3.1.0",
+    "rollup-plugin-node-builtins": "^2.1.2",
+    "rollup-plugin-node-globals": "^1.4.0",
+    "rollup-plugin-node-resolve": "^3.4.0",
+    "rollup-plugin-typescript2": "0.17.1",
+    "rollup-plugin-uglify": "^6.0.4",
+    "ts-jest": "^24.3.0",
+    "ts-node": "^8.4.1",
+    "tslint": "^5.20.1",
+    "tslint-config-prettier": "^1.18.0",
+    "typescript": "^4.4.3"
   },
-  "author": "yugasun",
   "license": "MIT",
   "repository": {
     "type": "git",
-    "url": "git://github.com/yugasun/qrcode-decoder.git"
+    "url": "git+https://github.com/yugasun/qrcode-decoder.git"
   },
+  "keywords": [
+    "node-utils"
+  ],
+  "author": "yugasun",
   "bugs": {
     "url": "https://github.com/yugasun/qrcode-decoder/issues"
   },
-  "devDependencies": {
+  "homepage": "https://github.com/yugasun/qrcode-decoder#readme",
-    "babel-core": "6.26.0",
-    "babel-plugin-transform-runtime": "6.23.0",
-    "babel-preset-env": "1.6.1",
-    "babel-preset-stage-2": "^6.24.1",
-    "cdkit": "1.1.0",
-    "es5-shim": "4.5.10",
-    "eslint": "4.18.2",
-    "eslint-config-airbnb-base": "^13.1.0",
-    "eslint-plugin-import": "^2.14.0",
-    "expect.js": "0.3.1",
-    "gh-pages": "^2.0.1",
-    "jsdom": "^13.0.0",
-    "mocha": "3.5.3",
-    "mocha-jsdom": "^2.0.0",
-    "rimraf": "2.6.2",
-    "rollup": "^0.67.3",
-    "rollup-plugin-babel": "3.0.3",
-    "rollup-plugin-commonjs": "8.3.0",
-    "rollup-plugin-node-resolve": "3.0.3",
-    "rollup-plugin-uglify": "^6.0.0",
-    "zuul": "^3.12.0"
-  },
   "dependencies": {
-    "babel-polyfill": "^6.26.0",
+    "jsqr": "^1.4.0"
-    "jsqr": "^1.1.1"
   }
 }

scripts/bundle.ts

@@ -0,0 +1,144 @@
+import * as path from 'path';
+import * as rollup from 'rollup';
+import resolve from 'rollup-plugin-node-resolve';
+import typescript2 from 'rollup-plugin-typescript2';
+import { uglify } from 'rollup-plugin-uglify';
+import globals from 'rollup-plugin-node-globals';
+import commonjs from 'rollup-plugin-commonjs';
+import ts from 'typescript';
+
+import { createLogger } from './logger';
+
+const logBundle = createLogger('bundle');
+
+const plugins: rollup.Plugin[] = [
+  resolve({
+    browser: true,
+    jsnext: true,
+    preferBuiltins: true,
+  }),
+  commonjs(),
+  typescript2({
+    tsconfig: path.join(__dirname, '..', 'tsconfig.json'),
+  }),
+];
+
+async function bundleEsm() {
+  const bundle = await rollup.rollup({
+    input: path.join(process.cwd(), 'src/index.ts'),
+    plugins: [...plugins, globals()],
+    external: ['jsqr'],
+  });
+  await bundle.write({
+    file: 'dist/index.esm.js',
+    name: 'QrcodeDecoder',
+    format: 'esm',
+    sourcemap: false,
+    globals: {
+      jsqr: 'jsqr',
+      tslib: 'tslib',
+    },
+  });
+}
+async function bundleUmd() {
+  const bundle = await rollup.rollup({
+    input: path.join(process.cwd(), 'src/index.ts'),
+    plugins: [...plugins],
+    external: ['jsqr'],
+  });
+  await bundle.write({
+    file: 'dist/index.js',
+    exports: 'named',
+    name: 'QrcodeDecoder',
+    format: 'umd',
+    sourcemap: false,
+    globals: {
+      jsqr: 'jsqr',
+      tslib: 'tslib',
+    },
+  });
+}
+
+async function bundleCommonjs() {
+  const bundle = await rollup.rollup({
+    input: path.join(process.cwd(), 'src/index.ts'),
+    plugins: [...plugins],
+    external: ['jsqr'],
+  });
+  await bundle.write({
+    file: 'dist/index.js',
+    exports: 'named',
+    name: 'QrcodeDecoder',
+    format: 'commonjs',
+    sourcemap: false,
+    globals: {
+      jsqr: 'jsqr',
+      tslib: 'tslib',
+    },
+  });
+}
+
+async function bundleAio() {
+  const bundle = await rollup.rollup({
+    input: path.join(process.cwd(), 'src/index.ts'),
+    plugins: [
+      ...plugins,
+      uglify({
+        compress: {
+          drop_debugger: true,
+          drop_console: false,
+        },
+      }),
+    ],
+  });
+  await bundle.write({
+    file: 'dist/index.min.js',
+    name: 'QrcodeDecoder',
+    format: 'iife',
+    sourcemap: true,
+  });
+}
+
+async function bundle() {
+  try {
+    const outputs = process.argv.slice(2)[0].split(',');
+    logBundle(`Creating bundle`);
+
+    if (outputs.indexOf('esm') === -1) {
+      logBundle(`Skipping esm`);
+    } else {
+      logBundle(`Creating esm`);
+      await bundleEsm();
+    }
+
+    if (outputs.indexOf('umd') === -1) {
+      logBundle(`Skipping umd`);
+    } else {
+      logBundle(`Creating umd`);
+
+      await bundleUmd();
+    }
+
+    if (outputs.indexOf('commonjs') === -1) {
+      logBundle(`Skipping commonjs`);
+    } else {
+      logBundle(`Creating commonjs`);
+
+      await bundleCommonjs();
+    }
+
+    if (outputs.indexOf('aio') === -1) {
+      logBundle(`Skipping umd aio`);
+    } else {
+      logBundle(`Creating umd aio`);
+
+      await bundleAio();
+    }
+  } catch (err) {
+    logBundle('Failed to bundle:');
+    logBundle(err);
+    process.exit(1);
+  }
+}
+
+bundle();

scripts/logger.ts

@@ -0,0 +1,16 @@
+import * as l from 'fancy-log';
+const log = <typeof import('fancy-log')>(<any>(<any>l).default || l);
+import * as c from 'chalk';
+const chalk = <import('chalk').Chalk>(c.default || c);
+
+export function createLogger(name: string): typeof log {
+  const prefix = `> ${chalk.green(name)} `;
+  const logger = <typeof log>log.bind(log, prefix);
+  logger.info = log.info.bind(log, prefix);
+  logger.dir = log.dir.bind(log, prefix);
+  logger.warn = log.warn.bind(log, prefix);
+  logger.error = log.error.bind(log, prefix);
+  return logger;
+}
+
+export { chalk as c };

scripts/tsconfig.json

@@ -0,0 +1,8 @@
+{
+  "compilerOptions": {
+    "esModuleInterop": true,
+    "module": "commonjs",
+    "target": "es2015",
+    "resolveJsonModule": true
+  }
+}

src/index.js

@@ -1,376 +0,0 @@
-import 'babel-polyfill';
-import jsQR from 'jsqr';
-/* eslint-disable no-underscore-dangle */
-class QrcodeDecoder {
-    /**
-     * Constructor for QrcodeDecoder
-     */
-    constructor() {
-        this.timerCapture = null;
-        this.canvasElem = null;
-        this.gCtx = null;
-        this.stream = null;
-        this.videoElem = null;
-        this.getUserMediaHandler = null;
-        this.videoConstraints = { video: true, audio: false };
-
-        this.defaultOption = { inversionAttempts: 'attemptBoth' };
-    }
-
-    /**
-     * Verifies if canvas element is supported.
-     */
-    /* eslint-disable class-methods-use-this */
-    isCanvasSupported() {
-        const elem = document.createElement('canvas');
-        return !!(elem.getContext && elem.getContext('2d'));
-    }
-
-    /**
-     * draw lint
-     *
-     * @param {object} begin line begin point
-     * @param {object} end line end point
-     * @param {string} color color string
-     */
-    // _drawLine(begin, end, color) {
-    //     this.gCtx.beginPath();
-    //     this.gCtx.moveTo(begin.x, begin.y);
-    //     this.gCtx.lineTo(end.x, end.y);
-    //     this.gCtx.lineWidth = 4;
-    //     this.gCtx.strokeStyle = color;
-    //     this.gCtx.stroke();
-    // }
-
-    /**
-     * create qrcode marker
-     *
-     * @param {object} code jsqr parse code object
-     */
-    // _createQrcodeMark(code) {
-    //     this._drawLine(
-    //         code.location.topLeftCorner,
-    //         code.location.topRightCorner,
-    //         '#FF3B58',
-    //     );
-    //     this._drawLine(
-    //         code.location.topRightCorner,
-    //         code.location.bottomRightCorner,
-    //         '#FF3B58',
-    //     );
-    //     this._drawLine(
-    //         code.location.bottomRightCorner,
-    //         code.location.bottomLeftCorner,
-    //         '#FF3B58',
-    //     );
-    //     this._drawLine(
-    //         code.location.bottomLeftCorner,
-    //         code.location.topLeftCorner,
-    //         '#FF3B58',
-    //     );
-    // }
-
-    _createImageData(target, width, height) {
-        if (!this.canvasElem) {
-            this._prepareCanvas(width, height);
-        }
-
-        this.gCtx.clearRect(0, 0, width, height);
-        this.gCtx.drawImage(target, 0, 0, width, height);
-
-        const imageData = this.gCtx.getImageData(
-            0,
-            0,
-            this.canvasElem.width,
-            this.canvasElem.height,
-        );
-
-        return imageData;
-    }
-
-    /**
-     * Prepares the canvas element (which will
-     * receive the image from the camera and provide
-     * what the algorithm needs for checking for a
-     * QRCode and then decoding it.)
-     *
-     *
-     * @param  {DOMElement} canvasElem the canvas
-     *                                 element
-     * @param  {number} width      The width that
-     *                             the canvas element
-     *                             should have
-     * @param  {number} height     The height that
-     *                             the canvas element
-     *                             should have
-     * @return {DOMElement}            the canvas
-     * after the resize if width and height
-     * provided.
-     */
-    _prepareCanvas(width, height) {
-        if (!this.canvasElem) {
-            this.canvasElem = document.createElement('canvas');
-            this.canvasElem.style.width = `${width}px`;
-            this.canvasElem.style.height = `${height}px`;
-            this.canvasElem.width = width;
-            this.canvasElem.height = height;
-        }
-
-        this.gCtx = this.canvasElem.getContext('2d');
-    }
-
-    /**
-     * Based on the video dimensions and the canvas
-     * that was previously generated captures the
-     * video/image source and then paints into the
-     * canvas so that the decoder is able to work as
-     * it expects.
-     * @param  {DOMElement} videoElem <video> dom element
-     * @param  {Object} options     options (optional) - Additional options.
-     *  inversionAttempts - (attemptBoth (default), dontInvert, onlyInvert, or invertFirst)
-     *  refer to jsqr options: https://github.com/cozmo/jsQR
-     */
-    async _captureToCanvas(videoElem, options) {
-        if (this.timerCapture) {
-            clearTimeout(this.timerCapture);
-        }
-        const proms = () => {
-            const p = new Promise(async (resolve) => {
-                let code;
-                if (videoElem.videoWidth && videoElem.videoHeight) {
-                    const imageData = this._createImageData(
-                        videoElem,
-                        videoElem.videoWidth,
-                        videoElem.videoHeight,
-                    );
-
-                    code = jsQR(
-                        imageData.data,
-                        imageData.width,
-                        imageData.height,
-                        options,
-                    );
-
-                    if (code) {
-                        resolve(code);
-                    } else {
-                        this.timerCapture = setTimeout(async () => {
-                            code = await this._captureToCanvas(
-                                videoElem,
-                                options,
-                            );
-                            resolve(code);
-                        }, 500);
-                    }
-                } else {
-                    this.timerCapture = setTimeout(async () => {
-                        code = await this._captureToCanvas(videoElem, options);
-                        resolve(code);
-                    }, 500);
-                }
-            });
-
-            return p;
-        };
-
-        const result = await proms();
-
-        return result;
-    }
-
-    /**
-     * Prepares the video element for receiving
-     * camera's input. Releases a stream if there
-     * was any (resets).
-     *
-     * @param  {DOMElement} videoElem <video> dom element
-     * @param  {Object} options     options (optional) - Additional options.
-     *  inversionAttempts - (attemptBoth (default), dontInvert, onlyInvert, or invertFirst)
-     *  refer to jsqr options: https://github.com/cozmo/jsQR
-     */
-    async decodeFromCamera(videoElem, options = {}) {
-        const opts = {
-            ...this.defaultOption,
-            ...options,
-        };
-
-        this.stop();
-        if (!navigator.mediaDevices.getUserMedia) {
-            throw new Error("Couldn't get video from camera");
-        }
-
-        try {
-            const stream = await navigator.mediaDevices.getUserMedia(
-                this.videoConstraints,
-            );
-            videoElem.srcObject = stream;
-            // videoElem.src = window.URL.createObjectURL(stream);
-            this.videoElem = videoElem;
-            this.stream = stream;
-            this.videoDimensions = false;
-
-            const code = await this.decodeFromVideo(videoElem, opts);
-            return code;
-        } catch (e) {
-            throw e;
-        }
-    }
-
-    /**
-     * Prepares the video element for video file.
-     *
-     * @param  {DOMElement} videoElem <video> dom element
-     * @param  {Object} options     options (optional) - Additional options.
-     *  inversionAttempts - (attemptBoth (default), dontInvert, onlyInvert, or invertFirst)
-     *  refer to jsqr options: https://github.com/cozmo/jsQR
-     */
-    async decodeFromVideo(videoElem, options = {}) {
-        const opts = {
-            ...this.defaultOption,
-            ...options,
-        };
-        try {
-            this.videoElem = videoElem;
-            const code = await this._captureToCanvas(videoElem, opts);
-            return code;
-        } catch (e) {
-            throw e;
-        }
-    }
-
-    /**
-     * Decodes an image from its src.
-     * @param  {DOMElement} imageElem
-     * @param  {Object} options     options (optional) - Additional options.
-     *  inversionAttempts - (attemptBoth (default), dontInvert, onlyInvert, or invertFirst)
-     *  refer to jsqr options: https://github.com/cozmo/jsQR
-     */
-    async decodeFromImage(img, options = {}) {
-        let imgDom;
-        const opts = {
-            ...this.defaultOption,
-            ...options,
-        };
-        if (+img.nodeType > 0) {
-            if (!img.src) {
-                throw new Error('The ImageElement must contain a src');
-            }
-            imgDom = img;
-        } else if (typeof img === 'string') {
-            imgDom = document.createElement('img');
-            imgDom.src = img;
-            if (options.crossOrigin) {
-                imgDom.crossOrigin = options.crossOrigin;
-            }
-            const proms = () => new Promise((resolve) => {
-                imgDom.onload = () => resolve(true);
-            });
-            await proms();
-        }
-
-        let code = false;
-        if (imgDom) {
-            code = this._decodeFromImageElm(imgDom, opts);
-        }
-        return code;
-    }
-
-    _decodeFromImageElm(imgObj, options = {}) {
-        const opts = {
-            ...this.defaultOption,
-            ...options,
-        };
-        const imageData = this._createImageData(
-            imgObj,
-            imgObj.width,
-            imgObj.height,
-        );
-
-        const code = jsQR(
-            imageData.data,
-            imageData.width,
-            imageData.height,
-            opts,
-        );
-
-        if (code) {
-            return code;
-        }
-
-        return false;
-    }
-
-    /**
-     * Releases a video stream that was being
-     * captured by prepareToVideo
-     */
-    stop() {
-        if (this.stream) {
-            const track = this.stream.getTracks()[0];
-            track.stop();
-            this.stream = undefined;
-
-            // fix: clear black bg after camera capture
-            this.videoElem.srcObject = null;
-        }
-
-        if (this.timerCapture) {
-            clearTimeout(this.timerCapture);
-            this.timerCapture = undefined;
-        }
-
-        return this;
-    }
-
-    /**
-     * Sets the sourceId for the camera to use.
-     *
-     * The sourceId can be found using the
-     * getVideoSources function on a browser that
-     * supports it (currently only Chrome).
-     *
-     * @param {String} sourceId     The id of the
-     * video source you want to use (or false to use
-     * the current default)
-     */
-    setSourceId(sourceId) {
-        if (sourceId) {
-            this.videoConstraints.video = {
-                optional: [{ sourceId }],
-            };
-        } else {
-            this.videoConstraints.video = true;
-        }
-
-        return this;
-    }
-
-    /**
-     * Gets a list of all available video sources on
-     * the current device.
-     * @param {Function} cb callback to be resolved
-     * with error (first param) ou results (second
-     * param) - a list containing all of the sources
-     * that are of the 'video' kind.
-     */
-    getVideoSources() {
-        const sources = [];
-
-        if (!(MediaStreamTrack && MediaStreamTrack.getSources)) {
-            throw new Error(
-                'Current browser doest not support MediaStreamTrack.getSources',
-            );
-        }
-
-        MediaStreamTrack.getSources((sourceInfos) => {
-            sourceInfos.forEach((sourceInfo) => {
-                if (sourceInfo.kind === 'video') {
-                    sources.push(sourceInfo);
-                }
-            });
-        });
-        return sources;
-    }
-}
-
-export default QrcodeDecoder;

src/index.ts

@@ -0,0 +1,356 @@
+import jsQR, { QRCode, Options } from 'jsqr';
+
+export type CodeResult = QRCode | null;
+
+const videoSize = {
+  width: { min: 360, ideal: 720, max: 1080 },
+  height: { min: 360, ideal: 720, max: 1080 },
+};
+
+export class QrcodeDecoder {
+  timerCapture: null | NodeJS.Timeout;
+  canvasElem: null | HTMLCanvasElement;
+  gCtx: null | CanvasRenderingContext2D;
+  stream: null | MediaStream;
+  videoElem: null | HTMLVideoElement;
+  getUserMediaHandler: null;
+  videoConstraints: MediaStreamConstraints;
+  defaultOption: Options;
+
+  constructor() {
+    this.timerCapture = null;
+    this.canvasElem = null;
+    this.gCtx = null;
+    this.stream = null;
+    this.videoElem = null;
+    this.getUserMediaHandler = null;
+    this.videoConstraints = {
+      // default use rear camera
+      video: { ...videoSize, facingMode: { exact: 'environment' } },
+      audio: false,
+    };
+
+    this.defaultOption = { inversionAttempts: 'attemptBoth' };
+  }
+
+  /**
+   * Verifies if canvas element is supported.
+   */
+  isCanvasSupported() {
+    const elem = document.createElement('canvas');
+    return !!(elem.getContext && elem.getContext('2d'));
+  }
+
+  _createImageData(target: CanvasImageSource, width: number, height: number) {
+    if (!this.canvasElem) {
+      this._prepareCanvas(width, height);
+    }
+
+    this.gCtx!.clearRect(0, 0, width, height);
+    this.gCtx!.drawImage(target, 0, 0, width, height);
+
+    const imageData = this.gCtx!.getImageData(
+      0,
+      0,
+      this.canvasElem!.width,
+      this.canvasElem!.height,
+    );
+
+    return imageData;
+  }
+
+  /**
+   * Prepares the canvas element (which will
+   * receive the image from the camera and provide
+   * what the algorithm needs for checking for a
+   * QRCode and then decoding it.)
+   *
+   *
+   * @param  {DOMElement} canvasElem the canvas
+   *                                 element
+   * @param  {number} width      The width that
+   *                             the canvas element
+   *                             should have
+   * @param  {number} height     The height that
+   *                             the canvas element
+   *                             should have
+   * @return {DOMElement}            the canvas
+   * after the resize if width and height
+   * provided.
+   */
+  _prepareCanvas(width: number, height: number) {
+    if (!this.canvasElem) {
+      this.canvasElem = document.createElement('canvas');
+      this.canvasElem.style.width = `${width}px`;
+      this.canvasElem.style.height = `${height}px`;
+      this.canvasElem.width = width;
+      this.canvasElem.height = height;
+    }
+
+    this.gCtx = this.canvasElem.getContext('2d');
+  }
+
+  /**
+   * Based on the video dimensions and the canvas
+   * that was previously generated captures the
+   * video/image source and then paints into the
+   * canvas so that the decoder is able to work as
+   * it expects.
+   * @param  {DOMElement} videoElem <video> dom element
+   * @param  {Object} options     options (optional) - Additional options.
+   *  inversionAttempts - (attemptBoth (default), dontInvert, onlyInvert, or invertFirst)
+   *  refer to jsqr options: https://github.com/cozmo/jsQR
+   */
+  async _captureToCanvas(
+    videoElem: HTMLVideoElement,
+    options: Options,
+  ): Promise<CodeResult> {
+    if (this.timerCapture) {
+      clearTimeout(this.timerCapture);
+    }
+    const proms = () => {
+      const p = new Promise(async (resolve) => {
+        let code;
+        if (videoElem.videoWidth && videoElem.videoHeight) {
+          const imageData = this._createImageData(
+            videoElem,
+            videoElem.videoWidth,
+            videoElem.videoHeight,
+          );
+
+          code = jsQR(
+            imageData.data,
+            imageData.width,
+            imageData.height,
+            options,
+          );
+
+          if (code) {
+            resolve(code);
+          } else {
+            this.timerCapture = setTimeout(async () => {
+              code = await this._captureToCanvas(videoElem, options);
+              resolve(code);
+            }, 500);
+          }
+        } else {
+          this.timerCapture = setTimeout(async () => {
+            code = await this._captureToCanvas(videoElem, options);
+            resolve(code);
+          }, 500);
+        }
+      });
+
+      return p;
+    };
+
+    const result = await proms();
+
+    return result as CodeResult;
+  }
+
+  /**
+   * Prepares the video element for receiving
+   * camera's input. Releases a stream if there
+   * was any (resets).
+   *
+   * @param  {DOMElement} videoElem <video> dom element
+   * @param  {Object} options     options (optional) - Additional options.
+   *  inversionAttempts - (attemptBoth (default), dontInvert, onlyInvert, or invertFirst)
+   *  refer to jsqr options: https://github.com/cozmo/jsQR
+   */
+  async decodeFromCamera(
+    videoElem: HTMLVideoElement,
+    options: any = {},
+  ): Promise<CodeResult> {
+    const opts = {
+      ...this.defaultOption,
+      ...options,
+    };
+
+    this.stop();
+    if (!navigator.mediaDevices.getUserMedia) {
+      throw new Error("Couldn't get video from camera");
+    }
+
+    let stream: MediaStream;
+    try {
+      stream = await navigator.mediaDevices.getUserMedia(this.videoConstraints);
+    } catch (e) {
+      if ((e as OverconstrainedError).name === 'OverconstrainedError') {
+        console.log('[OverconstrainedError] Can not use rear camera.');
+
+        stream = await navigator.mediaDevices.getUserMedia({
+          video: {
+            ...videoSize,
+            ...{
+              width: opts.width,
+              height: opts.height,
+            },
+          },
+          audio: false,
+        });
+      } else {
+        throw e;
+      }
+    }
+
+    if (stream) {
+      videoElem.srcObject = stream;
+      // videoElem.src = window.URL.createObjectURL(stream);
+      this.videoElem = videoElem;
+      this.stream = stream;
+
+      const code = await this.decodeFromVideo(videoElem, opts);
+      return code;
+    }
+
+    return null;
+  }
+
+  /**
+   * Prepares the video element for video file.
+   *
+   * @param  {DOMElement} videoElem <video> dom element
+   * @param  {Object} options     options (optional) - Additional options.
+   *  inversionAttempts - (attemptBoth (default), dontInvert, onlyInvert, or invertFirst)
+   *  refer to jsqr options: https://github.com/cozmo/jsQR
+   */
+  async decodeFromVideo(
+    videoElem: HTMLVideoElement,
+    options = {},
+  ): Promise<CodeResult> {
+    const opts = {
+      ...this.defaultOption,
+      ...options,
+    };
+    try {
+      this.videoElem = videoElem;
+      const code = await this._captureToCanvas(videoElem, opts);
+      return code;
+    } catch (e) {
+      throw e;
+    }
+  }
+
+  /**
+   * Decodes an image from its src.
+   * @param  {DOMElement} imageElem
+   * @param  {Object} options     options (optional) - Additional options.
+   *  inversionAttempts - (attemptBoth (default), dontInvert, onlyInvert, or invertFirst)
+   *  refer to jsqr options: https://github.com/cozmo/jsQR
+   */
+  async decodeFromImage(
+    img: HTMLImageElement | string,
+    options: { crossOrigin?: string } = {},
+  ): Promise<CodeResult> {
+    let imgDom: HTMLImageElement | null = null;
+    const opts = {
+      ...this.defaultOption,
+      ...options,
+    };
+
+    if (typeof img === 'string') {
+      imgDom = document.createElement('img');
+      if (options.crossOrigin) {
+        imgDom.crossOrigin = options.crossOrigin;
+      }
+      imgDom.src = img;
+      const proms = () =>
+        new Promise((resolve) => {
+          imgDom!.onload = () => resolve(true);
+        });
+      await proms();
+    } else if (+img.nodeType > 0) {
+      if (!img.src) {
+        throw new Error('The ImageElement must contain a src');
+      }
+      imgDom = img;
+    }
+
+    let code = null;
+    if (imgDom) {
+      code = this._decodeFromImageElm(imgDom, opts);
+    }
+    return code;
+  }
+
+  _decodeFromImageElm(imgObj: HTMLImageElement, options = {}) {
+    const opts: Options = {
+      ...this.defaultOption,
+      ...options,
+    };
+    const imageData = this._createImageData(
+      imgObj,
+      imgObj.width,
+      imgObj.height,
+    );
+
+    const code = jsQR(imageData.data, imageData.width, imageData.height, opts);
+
+    if (code) {
+      return code;
+    }
+
+    return null;
+  }
+
+  /**
+   * Releases a video stream that was being
+   * captured by prepareToVideo
+   */
+  stop() {
+    if (this.stream) {
+      const track = this.stream.getTracks()[0];
+      track.stop();
+      this.stream = null;
+
+      // fix: clear black bg after camera capture
+      this.videoElem!.srcObject = null;
+    }
+
+    if (this.timerCapture) {
+      clearTimeout(this.timerCapture);
+      this.timerCapture = null;
+    }
+
+    return this;
+  }
+
+  /**
+   * Sets the sourceId for the camera to use.
+   */
+  setGroupId(groupId: string) {
+    if (groupId) {
+      this.videoConstraints.video = {
+        advanced: [{ groupId }],
+      };
+    } else {
+      this.videoConstraints.video = true;
+    }
+
+    return this;
+  }
+
+  /**
+   * Gets a list of all available video sources on
+   * the current device.
+   */
+  async getVideoDevices() {
+    if (navigator.mediaDevices.enumerateDevices) {
+      const devices = await navigator.mediaDevices.enumerateDevices();
+      return devices.filter((item: MediaDeviceInfo) => {
+        if (item.kind === 'videoinput') {
+          return true;
+        }
+        return false;
+      });
+    } else {
+      throw new Error(
+        'Current browser doest not support MediaStreamTrack.getSources',
+      );
+    }
+  }
+}
+
+export default QrcodeDecoder;

test/.gitkeep

@@ -1 +0,0 @@
-make test for your own private key

test/browser/index.html

@@ -1,37 +0,0 @@
-<!DOCTYPE html>
-<html>
-
-<head>
-    <title>Mocha</title>
-    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <link rel="stylesheet" href="../../node_modules/mocha/mocha.css" />
-</head>
-
-<body>
-    <div id="mocha"></div>
-    <script src="../../node_modules/es5-shim/es5-shim.js"></script>
-    <script src="../../node_modules/es5-shim/es5-sham.js"></script>
-    
-    <script src="../../node_modules/mocha/mocha.js"></script>
-    <script src="../../node_modules/expect.js/index.js"></script>
-    <script>
-        mocha.setup('bdd');
-    </script>
-    <script src="../../dist/index.aio.js"></script>
-    <script>
-        var libs = {
-            'expect.js': expect,
-            '../dist/index.js': window['qrcode-decoder']
-        };
-        var require = function(path) {
-            return libs[path];
-        }
-    </script>
-    <script src="../test.js"></script>
-    <script>
-        mocha.run();
-    </script>
-</body>
-
-</html>

test/test.js

@@ -1,57 +0,0 @@
-const expect = require('expect.js');
-const QrcodeDecoder = require('../dist/index.js');
-
-describe('QrcodeDecoder', function () {
-    //   global.mocha.checkLeaks = false;
-    this.timeout(180000);
-
-    it('be defined', function () {
-        expect(QrcodeDecoder).to.be.ok();
-    });
-
-    var qr;
-
-    beforeEach(function () {
-        qr = new QrcodeDecoder();
-    });
-
-    describe('decodeFromImage', function () {
-        it('decode image from img element', function (done) {
-            const img = document.createElement('img');
-            img.src = 'demo/assets/qrcode.png';
-            img.onload = async function () {
-                const result = await qr.decodeFromImage(img);
-                expect(result.data).to.equal('192.168.1.13:3000');
-                done();
-            }
-
-        });
-
-        it('decode image from img url', async function () {
-            const result = await qr.decodeFromImage('demo/assets/qrcode.png');
-            expect(result.data).to.equal('192.168.1.13:3000');
-        });
-
-        it('throw if no src in image element', async function (done) {
-            var img = document.createElement('img');
-            try {
-                await qr.decodeFromImage(img);
-            } catch(e) {
-                expect(e.message).to.equal('The ImageElement must contain a src')
-                done();
-            }
-        });
-    });
-
-    describe('decodeFromCamera', function () {
-        it('decode from a video with qrcode', async function () {
-            const video = document.createElement('video');
-            video.setAttribute('autoplay', true);
-            video.setAttribute('src', 'demo/assets/qrcode-video.mp4');
-
-            const result = await qr.decodeFromVideo(video);
-            expect(result.data).to.equal('192.168.1.13:3000');
-        });
-    });
-});
-

tsconfig.json

@@ -0,0 +1,26 @@
+{
+  "compilerOptions": {
+    "outDir": "dist",
+    "baseUrl": ".",
+    "composite": true,
+    "declaration": true,
+    "declarationMap": true,
+    "downlevelIteration": true,
+    "emitDecoratorMetadata": true,
+    "esModuleInterop": true,
+    "experimentalDecorators": true,
+    "preserveConstEnums": true,
+    "importHelpers": false,
+    "lib": [
+      "esnext",
+      "dom"
+    ],
+    "module": "ESNext",
+    "moduleResolution": "node",
+    "sourceMap": false,
+    "resolveJsonModule": true,
+    "noUnusedLocals": true,
+    "strict": true,
+    "target": "es5"
+  }
+}

tslint.json

@@ -0,0 +1,23 @@
+{
+  "extends": ["tslint:latest", "tslint-config-prettier"],
+  "rules": {
+    "interface-name": [true, "never-prefix"],
+    "member-access": false,
+    "no-angle-bracket-type-assertion": false,
+    "no-bitwise": false,
+    "no-console": false,
+    "no-default-export": true,
+    "no-empty-interface": false,
+    "no-implicit-dependencies": false,
+    "no-submodule-imports": false,
+    "ordered-imports": [false],
+    "object-literal-sort-keys": false,
+    "object-literal-key-quotes": [true, "as-needed"],
+    "quotemark": [true, "single"],
+    "semicolon": [true, "always", "ignore-bound-class-methods"],
+    "jsx-boolean-value": false
+  },
+  "linterOptions": {
+    "exclude": ["config/**/*.js", "node_modules/**/*.ts"]
+  }
+}