feat: add qrcode web component version

packages/animated-qr-base/package.json

@@ -0,0 +1,23 @@
+{
+  "name": "@keystonehq/animated-qr-base",
+  "version": "0.0.1",
+  "description": "",
+  "main": "dist/index.js",
+  "types": "dist/index.d.ts",
+  "homepage": "https://github.com/KeystoneHQ/keystone-airgaped-base#readme",
+  "scripts": {
+    "dev": "pnpm run cleanup && tsc -w",
+    "build": "pnpm run cleanup && tsc",
+    "cleanup": "rimraf ./dist",
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "devDependencies": {
+    "rimraf": "^5.0.7"
+  },
+  "dependencies": {
+    "@ngraveio/bc-ur": "^1.1.13"
+  }
+}

packages/animated-qr-base/src/index.ts

@@ -0,0 +1,4 @@
+export * from "./constant";
+export * from "./types";
+export * from "./webcamUtils";
+export * from "./getAnimatedScan";

packages/animated-qr/src/AnimatedQRScanner/types.ts → packages/animated-qr-base/src/types.ts

@@ -11,21 +11,7 @@ export enum CameraStatus {
   UNKNOWN_ERROR = "UNKNOWN_CAMERA_ERROR",
 }
 
-export type CameraError = "NO_WEBCAM_FOUND" | "NO_WEBCAM_ACCESS"
-
-export interface ScannerProps {
-  purpose?: Purpose
-  urTypes?: string[]
-  handleScan: (ur: { type: string; cbor: string }) => void
-  handleError: (error: string) => void
-  options?: {
-    width?: number | string
-    height?: number | string
-    blur?: boolean
-  }
-  videoLoaded?: (canPlay: boolean, error?: CameraError) => void
-  onProgress?: (progress: number) => void
-}
+export type CameraError = "NO_WEBCAM_FOUND" | "NO_WEBCAM_ACCESS";
 
 export enum Purpose {
   SYNC = "sync",
@@ -48,3 +34,17 @@ export enum URType {
   COSMOS_SIGNATURE = "cosmos-signature",
   EVM_SIGNATURE = "evm-signature",
 }
+
+export interface ScannerProps {
+  purpose?: Purpose;
+  urTypes?: string[];
+  handleScan: (ur: { type: string; cbor: string }) => void;
+  handleError: (error: string) => void;
+  options?: {
+    width?: number | string;
+    height?: number | string;
+    blur?: boolean;
+  };
+  videoLoaded?: (canPlay: boolean, error?: CameraError) => void;
+  onProgress?: (progress: number) => void;
+}

packages/animated-qr-base/tsconfig.json

@@ -0,0 +1,14 @@
+{
+  "extends": "../../tsconfig.json",
+  "include": ["src", "node_modules/*"],
+  "compilerOptions": {
+    "rootDir": "./src",
+    "baseUrl": "./",
+    "outDir": "./dist",
+    "experimentalDecorators": true,
+    "useDefineForClassFields": false,
+    "paths": {
+      "*": ["src/*", "node_modules/*"]
+    }
+  },
+}

packages/animated-qr-lit/package.json

@@ -0,0 +1,28 @@
+{
+  "name": "@keystonehq/animated-qr-lit",
+  "version": "0.0.1",
+  "description": "",
+  "main": "dist/index.js",
+  "types": "dist/index.d.ts",
+  "homepage": "https://github.com/KeystoneHQ/keystone-airgaped-base#readme",
+  "scripts": {
+    "dev": "pnpm run cleanup && tsc -w",
+    "build": "pnpm run cleanup && tsc",
+    "cleanup": "rimraf ./dist",
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "devDependencies": {
+    "rimraf": "^5.0.7"
+  },
+  "dependencies": {
+    "@keystonehq/animated-qr-base": "^0.0.1",
+    "@ngraveio/bc-ur": "^1.1.13",
+    "@zxing/browser": "^0.1.1",
+    "@zxing/library": "^0.19.1",
+    "lit": "^3.1.4",
+    "qrcode": "^1.5.3"
+  }
+}

packages/animated-qr-lit/src/AnimatedQRCode/index.ts

@@ -0,0 +1,82 @@
+import { LitElement, html, css } from "lit";
+import { property } from "lit/decorators/property.js";
+import { customElement } from "lit/decorators/custom-element.js";
+import QRCode from "qrcode";
+import { UR, UREncoder } from "@ngraveio/bc-ur";
+
+const MAX_FRAGMENT_LENGTH = 400;
+const DEFAULT_INTERVAL = 100;
+const DEFAULT_QR_SIZE = 180;
+
+@customElement("animated-qrcode-lit")
+export class AnimatedQRCodeLite extends LitElement {
+  private timer: NodeJS.Timeout;
+  private urEncoder: UREncoder;
+
+  @property({ type: String })
+  cbor: string;
+
+  @property({ type: String })
+  type: string;
+
+  @property({ type: Number })
+  capacity: number = MAX_FRAGMENT_LENGTH;
+
+  @property({ type: Number })
+  interval: number = DEFAULT_INTERVAL;
+
+  @property({ type: Number })
+  size: number = DEFAULT_QR_SIZE;
+
+  static styles = css`
+    :host {
+      display: block;
+      background-color: white;
+      display: flex;
+      justify-content: center;
+      align-items: center;
+    }
+  `;
+
+  generateQRCode() {
+    if (this.timer) {
+      clearInterval(this.timer);
+    }
+    this.urEncoder = new UREncoder(
+      new UR(Buffer.from(this.cbor, "hex"), this.type),
+      this.capacity
+    );
+    this.timer = setInterval(() => {
+      this.updateQrcode(this.urEncoder.nextPart().toUpperCase());
+    }, this.interval);
+  }
+
+  async updateQrcode(data: string) {
+    const img = this.shadowRoot.querySelector("img");
+    img.src = await QRCode.toDataURL(data, {
+      margin: 0,
+    });
+  }
+
+  connectedCallback() {
+    super.connectedCallback();
+    this.generateQRCode();
+  }
+
+  disconnectedCallback(): void {
+    super.disconnectedCallback();
+    clearInterval(this.timer);
+  }
+
+  updated(nextProps) {
+    this.generateQRCode();
+    if (nextProps.has("size")) {
+      this.style.width = `${this.size}px`;
+      this.style.height = `${this.size}px`;
+    }
+  }
+
+  render() {
+    return html`<img style="width: ${this.size - 10}px; height: auto;" />`;
+  }
+}

packages/animated-qr-lit/src/AnimatedQRScanner/index.ts

@@ -0,0 +1,68 @@
+import { BarcodeFormat, DecodeHintType } from "@zxing/library";
+import { BrowserQRCodeReader, IScannerControls } from "@zxing/browser";
+import { ScannerProps, getAnimatedScan } from "@keystonehq/animated-qr-base";
+
+const codeReader = () => {
+  const hint = new Map();
+  hint.set(DecodeHintType.POSSIBLE_FORMATS, [BarcodeFormat.QR_CODE]);
+  return new BrowserQRCodeReader(hint, {
+    delayBetweenScanAttempts: 50,
+    delayBetweenScanSuccess: 100,
+  });
+};
+
+interface SetupProps extends Omit<ScannerProps, "options"> {
+  video: HTMLVideoElementScanPreview<IScannerControls>;
+}
+
+export const setupScanner = ({
+  video,
+  purpose,
+  urTypes,
+  handleScan,
+  handleError,
+  videoLoaded,
+  onProgress,
+}: SetupProps) => {
+  const { handleScanSuccess, handleScanFailure } = getAnimatedScan({
+    purpose,
+    urTypes,
+    handleScan,
+    handleError,
+    onProgress,
+  });
+  const canplayListener = () => {
+    videoLoaded && videoLoaded(true);
+  };
+  video.addEventListener("canplay", canplayListener);
+  const pendingScanRequest =
+    video?.pendingScanRequest ?? Promise.resolve(undefined);
+  const scanRequest = pendingScanRequest
+    .then(() =>
+      codeReader().decodeFromVideoDevice(undefined, video, (result, error) => {
+        if (result) {
+          handleScanSuccess(result.getText());
+        }
+        if (error) {
+          handleScanFailure(error.message);
+        }
+      })
+    )
+    .catch((error) => {
+      console.error(error);
+      return undefined;
+    });
+
+  if (video) {
+    video.pendingScanRequest = scanRequest;
+  }
+
+  return () => {
+    video.removeEventListener("canplay", canplayListener);
+    scanRequest.then((controls) => {
+      if (controls) {
+        controls.stop();
+      }
+    });
+  };
+};

packages/animated-qr-lit/src/index.ts

@@ -0,0 +1,2 @@
+export * from "./AnimatedQRCode";
+export * from "./AnimatedQRScanner";

packages/animated-qr-lit/tsconfig.json

@@ -0,0 +1,14 @@
+{
+  "extends": "../../tsconfig.json",
+  "include": ["src", "node_modules/*", "types/**/*"],
+  "compilerOptions": {
+    "rootDir": "./src",
+    "baseUrl": "./",
+    "outDir": "./dist",
+    "experimentalDecorators": true,
+    "useDefineForClassFields": false,
+    "paths": {
+      "*": ["src/*", "node_modules/*"]
+    }
+  },
+}

packages/animated-qr-lit/types/global.d.ts

@@ -0,0 +1,13 @@
+type Nullable<T> = T | null | undefined;
+
+type HTMLVideoElementScanPreview<T> = HTMLVideoElement & {
+  pendingScanRequest?: Promise<T | undefined>;
+};
+
+interface AnimatedQRCodeProps {
+  cbor: string;
+  type: string;
+  size?: number;
+  capacity?: number;
+  interval?: number;
+}