From 11d739b47384612839f2a7ef7800c77ee5262db0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Hauke=20T=C3=B6njes?= <git@htoenjes.de>
Date: Wed, 28 Jul 2021 14:28:45 +0200
Subject: [PATCH] New color selector - Use headless-ui radio menu for the
 selector - Use enum for colors - Design is WIP

---
 components/ColorSelector.tsx              | 34 ++++++++++++++++++
 components/Form.tsx                       | 42 ++++++++---------------
 components/color_selector/ColorOption.tsx | 31 +++++++++++++++++
 package.json                              |  1 +
 src/colors.ts                             | 22 ++++++++++++
 src/constants.ts                          | 11 ------
 src/payload.ts                            | 29 +++++++---------
 src/process.ts                            |  5 +--
 tailwind.config.js                        | 20 +++++------
 yarn.lock                                 |  5 +++
 10 files changed, 133 insertions(+), 67 deletions(-)
 create mode 100644 components/ColorSelector.tsx
 create mode 100644 components/color_selector/ColorOption.tsx
 create mode 100644 src/colors.ts

diff --git a/components/ColorSelector.tsx b/components/ColorSelector.tsx
new file mode 100644
index 0000000..b850e23
--- /dev/null
+++ b/components/ColorSelector.tsx
@@ -0,0 +1,34 @@
+import React, {useState} from 'react'
+import {RadioGroup} from '@headlessui/react'
+import ColorOption from "./color_selector/ColorOption";
+import {COLORS} from "../src/colors";
+
+interface ColorSelectorProps {
+    initialValue: COLORS,
+
+    onChange(value: COLORS): void;
+
+}
+
+function ColorSelector(props: ColorSelectorProps): JSX.Element {
+    let [color, setColor] = useState(props.initialValue)
+
+    return (
+        <RadioGroup<"div", COLORS> className="flex items-center flex-wrap" value={color}
+                                   onChange={function (value) {
+                                       setColor(value);
+                                       props.onChange(value);
+                                   }}>
+            <ColorOption color={COLORS.WHITE}/>
+            <ColorOption color={COLORS.BLACK}/>
+            <ColorOption color={COLORS.GREY}/>
+            <ColorOption color={COLORS.GREEN}/>
+            <ColorOption color={COLORS.INDIGO}/>
+            <ColorOption color={COLORS.BLUE}/>
+            <ColorOption color={COLORS.PURPLE}/>
+            <ColorOption color={COLORS.TEAL}/>
+        </RadioGroup>
+    )
+}
+
+export default ColorSelector
\ No newline at end of file
diff --git a/components/Form.tsx b/components/Form.tsx
index 7cf46e7..7f6a104 100644
--- a/components/Form.tsx
+++ b/components/Form.tsx
@@ -1,6 +1,6 @@
 import {saveAs} from 'file-saver';
 import React, {FormEvent, useEffect, useRef, useState} from "react";
-import {BrowserQRCodeReader} from "@zxing/browser";
+import {BrowserQRCodeReader, IScannerControls} from "@zxing/browser";
 import {Result} from "@zxing/library";
 import {useTranslation} from 'next-i18next';
 import Link from 'next/link';
@@ -11,15 +11,20 @@ import Check from './Check';
 import {PayloadBody} from "../src/payload";
 import {getPayloadBodyFromFile, getPayloadBodyFromQR} from "../src/process";
 import {PassData} from "../src/pass";
+import ColorSelector from "./ColorSelector";
+import {COLORS} from "../src/colors";
 
 function Form(): JSX.Element {
-    const { t } = useTranslation(['index', 'errors', 'common']);
+    const {t} = useTranslation(['index', 'errors', 'common']);
 
     // Whether camera is open or not
     const [isCameraOpen, setIsCameraOpen] = useState<boolean>(false);
 
+    // Currently selected color
+    const [selectedColor, setSelectedColor] = useState<COLORS>(COLORS.WHITE);
+
     // Global camera controls
-    const [globalControls, setGlobalControls] = useState(undefined);
+    const [globalControls, setGlobalControls] = useState<IScannerControls>(undefined);
 
     // Currently selected QR Code / File. Only one of them is set.
     const [qrCode, setQrCode] = useState<Result>(undefined);
@@ -82,7 +87,7 @@ function Form(): JSX.Element {
             setErrorMessage('noCameraAccess');
             return;
         }
-        
+
         // Check if camera device is present
         if (deviceList.length == 0) {
             setErrorMessage("noCameraFound");
@@ -123,7 +128,7 @@ function Form(): JSX.Element {
         event.preventDefault();
         setLoading(true);
 
-        if(navigator.userAgent.match('CriOS')) {
+        if (navigator.userAgent.match('CriOS')) {
             setErrorMessage('safariSupportOnly');
             setLoading(false);
             return;
@@ -135,7 +140,7 @@ function Form(): JSX.Element {
             return;
         }
 
-        const color = (document.getElementById('color') as HTMLSelectElement).value;
+        const color = selectedColor;
         let payloadBody: PayloadBody;
 
         try {
@@ -208,24 +213,7 @@ function Form(): JSX.Element {
                     <div className="space-y-5">
                         <p>{t('index:pickColorDescription')}</p>
                         <div className="relative inline-block w-full">
-                            <select name="color" id="color"
-                                    className="bg-gray-200 dark:bg-gray-900 focus:outline-none w-full h-10 pl-3 pr-6 text-base rounded-md appearance-none cursor-pointer">
-                                <option value="white">{t('index:colorWhite')}</option>
-                                <option value="black">{t('index:colorBlack')}</option>
-                                <option value="grey">{t('index:colorGrey')}</option>
-                                <option value="green">{t('index:colorGreen')}</option>
-                                <option value="indigo">{t('index:colorIndigo')}</option>
-                                <option value="blue">{t('index:colorBlue')}</option>
-                                <option value="purple">{t('index:colorPurple')}</option>
-                                <option value="teal">{t('index:colorTeal')}</option>
-                            </select>
-                            <div className="absolute inset-y-0 right-0 flex items-center px-2 pointer-events-none">
-                                <svg className="w-5 h-5 fill-current" viewBox="0 0 20 20">
-                                    <path
-                                        d="M5.293 7.293a1 1 0 011.414 0L10 10.586l3.293-3.293a1 1 0 111.414 1.414l-4 4a1 1 0 01-1.414 0l-4-4a1 1 0 010-1.414z"
-                                        clipRule="evenodd" fillRule="evenodd"/>
-                                </svg>
-                            </div>
+                            <ColorSelector onChange={setSelectedColor} initialValue={selectedColor}/>
                         </div>
                     </div>
                 }/>
@@ -241,9 +229,9 @@ function Form(): JSX.Element {
                         </p>
                         <div>
                             <ul className="list-none">
-                                <Check text={t('createdOnDevice')}></Check>
-                                <Check text={t('openSourceTransparent')}></Check>
-                                <Check text={t('hostedInEU')}></Check>
+                                <Check text={t('createdOnDevice')}/>
+                                <Check text={t('openSourceTransparent')}/>
+                                <Check text={t('hostedInEU')}/>
                             </ul>
                         </div>
                         <label htmlFor="privacy" className="flex flex-row space-x-4 items-center">
diff --git a/components/color_selector/ColorOption.tsx b/components/color_selector/ColorOption.tsx
new file mode 100644
index 0000000..432ad17
--- /dev/null
+++ b/components/color_selector/ColorOption.tsx
@@ -0,0 +1,31 @@
+import {RadioGroup} from '@headlessui/react'
+import {COLORS, rgbToHex} from "../../src/colors";
+
+interface ColorOptionProps {
+    color: COLORS,
+}
+
+function ColorOption(props: ColorOptionProps): JSX.Element {
+
+    let colorIsDark = props.color != COLORS.WHITE;
+
+    return (
+        <RadioGroup.Option
+            value={props.color}>
+            {({checked}) => (
+                <div
+                    className={`${colorIsDark ? 'border-white' : 'border-black'} border-2 cursor-pointer rounded-full w-9 h-9 flex items-center justify-center m-1`}
+                    style={{backgroundColor: rgbToHex(props.color)}}>
+                    {checked &&
+                    <svg className={`${colorIsDark ? 'text-white' : 'text-black'} h-5 w-5`} fill="none"
+                         viewBox="0 0 24 24" stroke="currentColor">
+                        <path strokeLinecap="round" strokeLinejoin="round" strokeWidth="2" d="M5 13l4 4L19 7"/>
+                    </svg>
+                    }
+                </div>
+            )}
+        </RadioGroup.Option>
+    )
+}
+
+export default ColorOption
diff --git a/package.json b/package.json
index 77ca482..bed0ad3 100644
--- a/package.json
+++ b/package.json
@@ -9,6 +9,7 @@
     "start": "next start"
   },
   "dependencies": {
+    "@headlessui/react": "^1.3.0",
     "@zxing/browser": "^0.0.9",
     "@zxing/library": "^0.18.6",
     "base45": "^3.0.0",
diff --git a/src/colors.ts b/src/colors.ts
new file mode 100644
index 0000000..3702c31
--- /dev/null
+++ b/src/colors.ts
@@ -0,0 +1,22 @@
+export enum COLORS {
+    WHITE = 'rgb(255, 255, 255)',
+    BLACK = 'rgb(0, 0, 0)',
+    GREY = 'rgb(33, 33, 33)',
+    GREEN = 'rgb(27, 94, 32)',
+    INDIGO = 'rgb(26, 35, 126)',
+    BLUE = 'rgb(1, 87, 155)',
+    PURPLE = 'rgb(74, 20, 140)',
+    TEAL = 'rgb(0, 77, 64)',
+}
+
+export function rgbToHex(rgbString: string) {
+    let a = rgbString.split("(")[1].split(")")[0];
+    let values = a.split(",");
+
+    let b = values.map(function (value) {
+        let x = parseInt(value).toString(16);
+        return (x.length == 1) ? "0" + x : x;
+    })
+
+    return "#" + b.join("");
+}
\ No newline at end of file
diff --git a/src/constants.ts b/src/constants.ts
index 87fc425..1883630 100644
--- a/src/constants.ts
+++ b/src/constants.ts
@@ -3,17 +3,6 @@ export class Constants {
     public static PASS_IDENTIFIER = 'pass.de.marvinsextro.covidpass'
     public static TEAM_IDENTIFIER = 'X8Q7Q2RLTD'
 
-    public static COLORS = {
-        white: 'rgb(255, 255, 255)',
-        black: 'rgb(0, 0, 0)',
-        grey: 'rgb(33, 33, 33)',
-        green: 'rgb(27, 94, 32)',
-        indigo: 'rgb(26, 35, 126)',
-        blue: 'rgb(1, 87, 155)',
-        purple: 'rgb(74, 20, 140)',
-        teal: 'rgb(0, 77, 64)',
-    }
-
     public static img1xBlack: Buffer = Buffer.from('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', 'base64');
     public static img2xBlack: Buffer = Buffer.from('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', 'base64')
     public static img1xWhite: Buffer = Buffer.from('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', 'base64')
diff --git a/src/payload.ts b/src/payload.ts
index e697a0f..eb9d8bd 100644
--- a/src/payload.ts
+++ b/src/payload.ts
@@ -1,5 +1,6 @@
 import {ValueSets} from "./value_sets";
 import {Constants} from "./constants";
+import {COLORS} from "./colors";
 
 enum CertificateType {
     Vaccine = 'Vaccine',
@@ -27,7 +28,7 @@ export interface PassDictionary {
 }
 
 export interface PayloadBody {
-    color: string;
+    color: COLORS;
     rawData: string;
     decodedData: Uint8Array;
 }
@@ -48,13 +49,7 @@ export class Payload {
 
     constructor(body: PayloadBody, valueSets: ValueSets) {
 
-        let colors = Constants.COLORS;
-
-        if (!(body.color in colors)) {
-            throw new Error('invalidColor');
-        }
-
-        const dark = body.color != 'white'
+        const dark = body.color != COLORS.WHITE;
 
         const healthCertificate = body.decodedData['-260'];
         const covidCertificate = healthCertificate['1']; // Version number subject to change
@@ -76,13 +71,13 @@ export class Payload {
 
         const firstName = nameInformation['gn'];
         const lastName = nameInformation['fn'];
-        
+
         const transliteratedFirstName = nameInformation['gnt'].replaceAll('<', ' ');
         const transliteratedLastName = nameInformation['fnt'].replaceAll('<', ' ');
 
         // Check if name contains non-latin characters
         const nameRegex = new RegExp('^[\\p{Script=Latin}\\p{P}\\p{M}\\p{Z}]+$', 'u');
-        
+
         let name: string;
 
         if (nameRegex.test(firstName) && nameRegex.test(lastName)) {
@@ -155,9 +150,9 @@ export class Payload {
         // Set Values
         this.rawData = body.rawData;
 
-        this.backgroundColor = dark ? colors[body.color] : colors.white
-        this.labelColor = dark ? colors.white : colors.grey
-        this.foregroundColor = dark ? colors.white : colors.black
+        this.backgroundColor = dark ? body.color : COLORS.WHITE
+        this.labelColor = dark ? COLORS.WHITE : COLORS.GREY
+        this.foregroundColor = dark ? COLORS.WHITE : COLORS.BLACK
         this.img1x = dark ? Constants.img1xWhite : Constants.img1xBlack
         this.img2x = dark ? Constants.img2xWhite : Constants.img2xBlack
         this.dark = dark;
@@ -188,7 +183,7 @@ export class Payload {
                         key: "dose",
                         label: "Dose",
                         value: dose
-                    }, 
+                    },
                     {
                         key: "dov",
                         label: "Date of Vaccination",
@@ -232,7 +227,7 @@ export class Payload {
                 const testDateTimeString = properties['sc'];
                 const testResultKey = properties['tr'];
                 const testingCentre = properties['tc'];
-                
+
                 if (!(testResultKey in valueSets.testResults)) {
                     throw new Error('invalidTestResult');
                 }
@@ -244,7 +239,7 @@ export class Payload {
                 const testType = valueSets.testTypes[testTypeKey].display;
 
                 const testTime = testDateTimeString.replace(/.*T/, '').replace('Z', ' ') + 'UTC';
-                const testDate = testDateTimeString.replace(/T.*/,'');
+                const testDate = testDateTimeString.replace(/T.*/, '');
 
                 data.secondaryFields.push(...[
                     {
@@ -343,7 +338,7 @@ export class Payload {
             default:
                 throw new Error('certificateType');
         }
-        
+
         return data;
     }
 }
\ No newline at end of file
diff --git a/src/process.ts b/src/process.ts
index e08d6e1..b2a253d 100644
--- a/src/process.ts
+++ b/src/process.ts
@@ -4,10 +4,11 @@ import * as PdfJS from 'pdfjs-dist'
 import jsQR, {QRCode} from "jsqr";
 import {decodeData} from "./decode";
 import {Result} from "@zxing/library";
+import {COLORS} from "./colors";
 
 PdfJS.GlobalWorkerOptions.workerSrc = `https://cdnjs.cloudflare.com/ajax/libs/pdf.js/${PdfJS.version}/pdf.worker.js`
 
-export async function getPayloadBodyFromFile(file: File, color: string): Promise<PayloadBody> {
+export async function getPayloadBodyFromFile(file: File, color: COLORS): Promise<PayloadBody> {
     // Read file
     const fileBuffer = await file.arrayBuffer();
 
@@ -59,7 +60,7 @@ export async function getPayloadBodyFromFile(file: File, color: string): Promise
     }
 }
 
-export async function getPayloadBodyFromQR(qrCodeResult: Result, color: string): Promise<PayloadBody> {
+export async function getPayloadBodyFromQR(qrCodeResult: Result, color: COLORS): Promise<PayloadBody> {
 
     // Get raw data
     let rawData = qrCodeResult.getText();
diff --git a/tailwind.config.js b/tailwind.config.js
index 23ee1c9..c5d3518 100644
--- a/tailwind.config.js
+++ b/tailwind.config.js
@@ -1,12 +1,12 @@
 module.exports = {
-  mode: 'jit',
-  purge: ['./pages/**/*.{js,ts,jsx,tsx}', './components/**/*.{js,ts,jsx,tsx}'],
-  darkMode: 'media',
-  theme: {
-    extend: {},
-  },
-  variants: {
-    extend: {},
-  },
-  plugins: [],
+    mode: 'jit',
+    purge: ['./pages/**/*.{js,ts,jsx,tsx}', './components/**/*.{js,ts,jsx,tsx}'],
+    darkMode: 'media',
+    theme: {
+        extend: {},
+    },
+    variants: {
+        extend: {},
+    },
+    plugins: [],
 }
diff --git a/yarn.lock b/yarn.lock
index c22cbf8..c6814c2 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -80,6 +80,11 @@
   resolved "https://registry.npmjs.org/@hapi/hoek/-/hoek-9.2.0.tgz"
   integrity sha512-sqKVVVOe5ivCaXDWivIJYVSaEgdQK9ul7a4Kity5Iw7u9+wBAPbX1RMSnLLmp7O4Vzj0WOWwMAJsTL00xwaNug==
 
+"@headlessui/react@^1.3.0":
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/@headlessui/react/-/react-1.3.0.tgz#62287c92604923e5dfb394483e5ec2463e1baea6"
+  integrity sha512-2gqTO6BQ3Jr8vDX1B67n1gl6MGKTt6DBmR+H0qxwj0gTMnR2+Qpktj8alRWxsZBODyOiBb77QSQpE/6gG3MX4Q==
+
 "@next/env@11.0.1":
   version "11.0.1"
   resolved "https://registry.npmjs.org/@next/env/-/env-11.0.1.tgz"