Qrcode reader

README.md

@@ -10,6 +10,7 @@
 - [x] Markdown to HTML Converter
 - [x] HTML Preview
 - [x] QRCode Generator
+- [x] QRCode Reader
 - [x] Base64 Encode/Decode
 - [x] Text Diff
 - [x] JSON Formatter

package.json

@@ -172,6 +172,7 @@
     "@types/jest": "^26.0.15",
     "@types/marked": "^2.0.4",
     "@types/node": "14.14.10",
+    "@types/pngjs": "^6.0.1",
     "@types/qrcode": "^1.4.1",
     "@types/react": "^16.9.44",
     "@types/react-dom": "^16.9.9",
@@ -258,7 +259,9 @@
     "electron-log": "^4.2.4",
     "electron-updater": "^4.3.4",
     "history": "^5.0.0",
+    "jsqr": "^1.4.0",
     "marked": "^2.1.3",
+    "pngjs": "^6.0.0",
     "qrcode": "^1.4.4",
     "react": "^17.0.1",
     "react-dom": "^17.0.1",

src/components/Main.tsx

@@ -11,6 +11,7 @@ import Base64 from './base64/Base64';
 import DiffText from './diff/TextDiff';
 import SqlFormatter from './sql/SqlFormatter';
 import JsonFormatter from './json/JsonFormatter';
+import QRCodeReader from './qrcode/QrCodeReader';
 
 const Main = () => {
   const routes = [
@@ -38,6 +39,12 @@ const Main = () => {
       name: 'QRCode Generator',
       Component: QrCodeGenerator,
     },
+    {
+      icon: <FontAwesomeIcon icon="camera" />,
+      path: '/qrcode-reader',
+      name: 'QRCode Reader',
+      Component: QRCodeReader,
+    },
     {
       icon: <FontAwesomeIcon icon="code" />,
       path: '/base64-encoder',

src/components/qrcode/QrCodeGenerator.tsx

@@ -2,7 +2,7 @@ import { clipboard, ipcRenderer } from 'electron';
 import React, { useState } from 'react';
 import { useDebouncedEffect } from '../../helpers/effectHooks';
 
-const HtmlPreview = () => {
+const QRCodeGenerator = () => {
   const [content, setContent] = useState('https://plainbelt.github.io');
   const [qrCode, setQrCode] = useState();
   const [opening, setOpening] = useState(false);
@@ -34,8 +34,9 @@ const HtmlPreview = () => {
   const handleSave = async () => {
     setSaving(true);
     await ipcRenderer.invoke('save-file', {
-      content: qrCode,
+      content: (qrCode || ',').split(',')[1],
       defaultPath: 'qrcode.png',
+      encoding: 'base64',
     });
     setSaving(false);
   };
@@ -84,4 +85,4 @@ const HtmlPreview = () => {
   );
 };
 
-export default HtmlPreview;
+export default QRCodeGenerator;

src/components/qrcode/QrCodeReader.tsx

@@ -0,0 +1,85 @@
+import { clipboard, ipcRenderer, nativeImage } from 'electron';
+import jsQR from 'jsqr';
+import { PNG } from 'pngjs';
+import React, { useEffect, useState } from 'react';
+
+const QRCodeReader = () => {
+  const [image, setImage] = useState(nativeImage.createEmpty());
+  const [content, setContent] = useState('');
+  const [opening, setOpening] = useState(false);
+  const [copied, setCopied] = useState(false);
+
+  const handleOpen = async () => {
+    setOpening(true);
+    const filters = [{ name: 'Images', extensions: ['jpg', 'jpeg', 'png'] }];
+    const buff = await ipcRenderer.invoke('open-file', filters);
+    setImage(nativeImage.createFromBuffer(buff));
+    setOpening(false);
+  };
+
+  const handleClipboard = () => {
+    setImage(clipboard.readImage());
+  };
+
+  const handleCopy = () => {
+    setCopied(true);
+    clipboard.write({ text: content });
+    setTimeout(() => setCopied(false), 500);
+  };
+
+  useEffect(() => {
+    try {
+      const qr = jsQR(
+        Uint8ClampedArray.from(PNG.sync.read(image.toPNG()).data),
+        image.getSize().width,
+        image.getSize().height
+      );
+      setContent(qr?.data || 'No QRCode detected');
+    } catch (e) {
+      setContent('No QRCode detected');
+    }
+  }, [image]);
+
+  return (
+    <div className="flex flex-col min-h-full">
+      <div className="flex justify-between mb-1">
+        <span className="flex space-x-2">
+          <button type="button" className="btn" onClick={handleClipboard}>
+            Clipboard
+          </button>
+          <button
+            type="button"
+            className="btn"
+            onClick={handleOpen}
+            disabled={opening}
+          >
+            Open...
+          </button>
+        </span>
+
+        <button
+          type="button"
+          className="btn"
+          onClick={handleCopy}
+          disabled={copied}
+        >
+          {copied ? 'Copied' : 'Copy'}
+        </button>
+      </div>
+      <div className="flex flex-1 min-h-full space-x-2">
+        <section className="flex items-center flex-1 max-w-full min-h-full p-4 prose bg-gray-100 rounded-md">
+          {image && !image.isEmpty() && (
+            <img src={image.toDataURL()} alt="QRCode" />
+          )}
+        </section>
+        <textarea
+          className="flex-1 min-h-full p-4 bg-white rounded-md"
+          value={content}
+          readOnly
+        />
+      </div>
+    </div>
+  );
+};
+
+export default QRCodeReader;

src/helpers/fontAwesome.ts

@@ -6,6 +6,7 @@ import {
   faJsSquare,
 } from '@fortawesome/free-brands-svg-icons';
 import {
+  faCamera,
   faClock,
   faCode,
   faCopy,
@@ -24,5 +25,6 @@ library.add(
   faCode,
   faExchangeAlt,
   faDatabase,
-  faJsSquare
+  faJsSquare,
+  faCamera
 );

src/main.dev.ts

@@ -11,7 +11,14 @@
 import 'core-js/stable';
 import 'regenerator-runtime/runtime';
 import path from 'path';
-import { app, BrowserWindow, dialog, ipcMain, shell } from 'electron';
+import {
+  app,
+  BrowserWindow,
+  dialog,
+  ipcMain,
+  nativeImage,
+  shell,
+} from 'electron';
 import { autoUpdater } from 'electron-updater';
 import log from 'electron-log';
 import { FileFilter, IpcMainInvokeEvent } from 'electron/main';
@@ -123,16 +130,24 @@ const createWindow = async () => {
 // use Buffer.from(buffer).toString()
 ipcMain.handle(
   'open-file',
-  async (_event: IpcMainInvokeEvent, filters: FileFilter[]) => {
+  async (
+    _event: IpcMainInvokeEvent,
+    filters: FileFilter[],
+    type: 'path' | 'buffer'
+  ) => {
     const files = await dialog.showOpenDialog({
       properties: ['openFile'],
       filters,
     });
 
     let content;
     if (files) {
-      const buffer = await promisify(fs.readFile)(files.filePaths[0]);
-      content = buffer;
+      const fpath = files.filePaths[0];
+      if (type === 'path') {
+        content = fpath;
+      } else {
+        content = await promisify(fs.readFile)(fpath);
+      }
     }
     return content;
   }
@@ -147,14 +162,16 @@ ipcMain.handle(
 
 ipcMain.handle(
   'save-file',
-  async (_event: IpcMainInvokeEvent, { defaultPath, content }) => {
+  async (_event: IpcMainInvokeEvent, { defaultPath, content, encoding }) => {
     const file = await dialog.showSaveDialog({
       defaultPath,
     });
 
     if (!file || !file.filePath) return;
 
-    await promisify(fs.writeFile)(file.filePath, content);
+    await promisify(fs.writeFile)(file.filePath, content, {
+      encoding,
+    });
   }
 );
 

src/package.json

@@ -1,7 +1,7 @@
 {
   "name": "plainbelt",
   "productName": "plainbelt",
-  "version": "0.0.1",
+  "version": "0.0.2",
   "description": "A toolbelt for all your plain text",
   "main": "./main.prod.js",
   "author": {

yarn.lock

@@ -1756,6 +1756,13 @@
     "@types/node" "*"
     xmlbuilder ">=11.0.1"
 
+"@types/pngjs@^6.0.1":
+  version "6.0.1"
+  resolved "https://registry.yarnpkg.com/@types/pngjs/-/pngjs-6.0.1.tgz#c711ec3fbbf077fed274ecccaf85dd4673130072"
+  integrity sha512-J39njbdW1U/6YyVXvC9+1iflZghP8jgRf2ndYghdJb5xL49LYDB+1EuAxfbuJ2IBbWIL3AjHPQhgaTxT3YaYeg==
+  dependencies:
+    "@types/node" "*"
+
 "@types/prettier@^2.0.0":
   version "2.1.5"
   resolved "https://registry.yarnpkg.com/@types/prettier/-/prettier-2.1.5.tgz#b6ab3bba29e16b821d84e09ecfaded462b816b00"
@@ -7708,6 +7715,11 @@ jsprim@^1.2.2:
     json-schema "0.2.3"
     verror "1.10.0"
 
+jsqr@^1.4.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/jsqr/-/jsqr-1.4.0.tgz#8efb8d0a7cc6863cb6d95116b9069123ce9eb2d1"
+  integrity sha512-dxLob7q65Xg2DvstYkRpkYtmKm2sPJ9oFhrhmudT1dZvNFFTlroai3AWSpLey/w5vMcLBXRgOJsbXpdN9HzU/A==
+
 "jsx-ast-utils@^2.4.1 || ^3.0.0", jsx-ast-utils@^3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/jsx-ast-utils/-/jsx-ast-utils-3.1.0.tgz#642f1d7b88aa6d7eb9d8f2210e166478444fa891"
@@ -9374,6 +9386,11 @@ pngjs@^3.3.0:
   resolved "https://registry.yarnpkg.com/pngjs/-/pngjs-3.4.0.tgz#99ca7d725965fb655814eaf65f38f12bbdbf555f"
   integrity sha512-NCrCHhWmnQklfH4MtJMRjZ2a8c80qXeMlQMv2uVp9ISJMTt562SbGd6n2oq0PaPgKm7Z6pL9E2UlLIhC+SHL3w==
 
+pngjs@^6.0.0:
+  version "6.0.0"
+  resolved "https://registry.yarnpkg.com/pngjs/-/pngjs-6.0.0.tgz#ca9e5d2aa48db0228a52c419c3308e87720da821"
+  integrity sha512-TRzzuFRRmEoSW/p1KVAmiOgPco2Irlah+bGFCeNfJXxxYGwSw7YwAOAcd7X28K/m5bjBWKsC29KyoMfHbypayg==
+
 portfinder@^1.0.26:
   version "1.0.28"
   resolved "https://registry.yarnpkg.com/portfinder/-/portfinder-1.0.28.tgz#67c4622852bd5374dd1dd900f779f53462fac778"