Files
crowd-funder-from-jason/src/views/ContactQRScanShowView.vue
Matthew Raymer daed0a97c9 WIP: restore database migration system and improve error handling
- Restore runMigrations functionality for database schema migrations
- Remove indexedDBMigrationService.ts (was for IndexedDB to SQLite migration)
- Recreate migrationService.ts and db-sql/migration.ts for schema management
- Add proper TypeScript error handling with type guards in AccountViewView
- Fix CreateAndSubmitClaimResult property access in QuickActionBvcBeginView
- Remove LeafletMouseEvent from Vue components array (it's a type, not component)
- Add null check for UserNameDialog callback to prevent undefined assignment
- Implement extractErrorMessage helper function for consistent error handling
- Update router to remove database-migration route

The migration system now properly handles database schema evolution
across app versions, while the IndexedDB to SQLite migration service
has been removed as it was specific to that one-time migration.
2025-06-23 08:25:10 +00:00

1019 lines
30 KiB
Vue

<template>
<!-- CONTENT -->
<section id="Content" class="p-6 pb-24 max-w-3xl mx-auto">
<div class="mb-2">
<h1 class="text-2xl text-center font-semibold relative px-7">
<!-- Back -->
<a
class="text-lg text-center px-2 py-1 absolute -left-2 -top-1"
@click="handleBack"
>
<font-awesome icon="chevron-left" class="fa-fw" />
</a>
<!-- Quick Help -->
<a
class="text-2xl text-center text-blue-500 px-2 py-1 absolute -right-2 -top-1"
@click="toastQRCodeHelp()"
>
<font-awesome icon="circle-question" class="fa-fw" />
</a>
Share Contact Info
</h1>
</div>
<div
v-if="!givenName"
class="bg-amber-200 text-amber-900 border-amber-500 border-dashed border text-center rounded-md overflow-hidden px-4 py-3 my-4"
>
<p class="mb-2">
<b>Note:</b> your identity currently does <b>not</b> include a name.
</p>
<button
class="inline-block text-md uppercase bg-gradient-to-b from-blue-400 to-blue-700 shadow-[inset_0_-1px_0_0_rgba(0,0,0,0.5)] text-white px-4 py-2 rounded-md"
@click="openUserNameDialog"
>
Set Your Name
</button>
</div>
<UserNameDialog ref="userNameDialog" />
<div
v-if="activeDid && activeDid.startsWith(ETHR_DID_PREFIX)"
class="block w-[90vw] max-w-[calc((100vh-env(safe-area-inset-top)-env(safe-area-inset-bottom))*0.4)] mx-auto my-4"
@click="onCopyUrlToClipboard()"
>
<!--
Play with display options: https://qr-code-styling.com/
See docs: https://www.npmjs.com/package/qr-code-generator-vue3
-->
<QRCodeVue3
:value="qrValue"
:width="606"
:height="606"
:corners-square-options="{ type: 'square' }"
:dots-options="{ type: 'square', color: '#000' }"
/>
</div>
<div v-else-if="activeDid" class="text-center my-4">
<!-- Not an ETHR DID so force them to paste it. (Passkey Peer DIDs are too big.) -->
<span class="text-blue-500" @click="onCopyDidToClipboard()">
Click here to copy your DID to your clipboard.
</span>
<span>
Then give it to them so they can paste it in their list of People.
</span>
</div>
<div v-else class="text-center my-4">
You have no identitifiers yet, so
<router-link
:to="{ name: 'start' }"
class="bg-blue-500 text-white px-1.5 py-1 rounded-md"
>
create your identifier.
</router-link>
<br />
If you don't do that first, these contacts won't see your activity.
</div>
<div class="text-center mt-6">
<div
v-if="isScanning"
class="relative aspect-square overflow-hidden bg-slate-800 w-[90vw] max-w-[calc((100vh-env(safe-area-inset-top)-env(safe-area-inset-bottom))*0.4)] mx-auto"
>
<!-- Status Message -->
<div
class="absolute top-0 left-0 right-0 bg-black bg-opacity-50 text-white text-sm text-center py-2 z-10"
>
<div
v-if="cameraState === 'initializing'"
class="flex items-center justify-center space-x-2"
>
<svg
class="animate-spin h-5 w-5 text-white"
xmlns="http://www.w3.org/2000/svg"
fill="none"
viewBox="0 0 24 24"
>
<circle
class="opacity-25"
cx="12"
cy="12"
r="10"
stroke="currentColor"
stroke-width="4"
></circle>
<path
class="opacity-75"
fill="currentColor"
d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0
3.042 1.135 5.824 3 7.938l3-2.647z"
></path>
</svg>
<span>{{ cameraStateMessage || "Initializing camera..." }}</span>
</div>
<p
v-else-if="cameraState === 'active'"
class="flex items-center justify-center space-x-2"
>
<span
class="inline-block w-2 h-2 bg-green-500 rounded-full animate-pulse"
></span>
<span>Position QR code in the frame</span>
</p>
<p v-else-if="error" class="text-red-400">Error: {{ error }}</p>
<p v-else class="flex items-center justify-center space-x-2">
<span
:class="{
'inline-block w-2 h-2 rounded-full': true,
'bg-green-500': cameraState === 'ready',
'bg-yellow-500': cameraState === 'in_use',
'bg-red-500':
cameraState === 'error' ||
cameraState === 'permission_denied' ||
cameraState === 'not_found',
'bg-blue-500': cameraState === 'off',
}"
></span>
<span>{{ cameraStateMessage || "Ready to scan" }}</span>
</p>
</div>
<qrcode-stream
v-if="useQRReader"
:camera="preferredCamera"
class="qr-scanner"
@decode="onDecode"
@init="onInit"
@detect="onDetect"
@error="onError"
@camera-on="onCameraOn"
@camera-off="onCameraOff"
/>
</div>
</div>
</section>
</template>
<script lang="ts">
import { AxiosError } from "axios";
import { Buffer } from "buffer/";
import QRCodeVue3 from "qr-code-generator-vue3";
import { Component, Vue } from "vue-facing-decorator";
import { useClipboard } from "@vueuse/core";
import { QrcodeStream } from "vue-qrcode-reader";
import QuickNav from "../components/QuickNav.vue";
import UserNameDialog from "../components/UserNameDialog.vue";
import { NotificationIface } from "../constants/app";
import { db } from "../db/index";
import { Contact } from "../db/tables/contacts";
import { MASTER_SETTINGS_KEY } from "../db/tables/settings";
import * as databaseUtil from "../db/databaseUtil";
import { parseJsonField } from "../db/databaseUtil";
import { getContactJwtFromJwtUrl } from "../libs/crypto";
import {
CONTACT_CSV_HEADER,
CONTACT_IMPORT_CONFIRM_URL_PATH_TIME_SAFARI,
generateEndorserJwtUrlForAccount,
register,
setVisibilityUtil,
} from "../libs/endorserServer";
import { decodeEndorserJwt, ETHR_DID_PREFIX } from "../libs/crypto/vc";
import * as libsUtil from "../libs/util";
import { Router } from "vue-router";
import { logger } from "../utils/logger";
import { QRScannerFactory } from "@/services/QRScanner/QRScannerFactory";
import { CameraState } from "@/services/QRScanner/types";
import { PlatformServiceFactory } from "@/services/PlatformServiceFactory";
import { Account } from "@/db/tables/accounts";
interface QRScanResult {
rawValue?: string;
barcode?: string;
}
interface IUserNameDialog {
open: (callback: (name: string) => void) => void;
}
@Component({
components: {
QRCodeVue3,
QuickNav,
UserNameDialog,
QrcodeStream,
},
})
export default class ContactQRScanShow extends Vue {
$notify!: (notification: NotificationIface, timeout?: number) => void;
$router!: Router;
activeDid = "";
apiServer = "";
givenName = "";
hideRegisterPromptOnNewContact = false;
isRegistered = false;
qrValue = "";
isScanning = false;
profileImageUrl = "";
error: string | null = null;
// QR Scanner properties
isInitializing = true;
initializationStatus = "Initializing camera...";
useQRReader = __USE_QR_READER__;
preferredCamera: "user" | "environment" = "environment";
cameraState: CameraState = "off";
cameraStateMessage?: string;
ETHR_DID_PREFIX = ETHR_DID_PREFIX;
// Add new properties to track scanning state
private lastScannedValue: string = "";
private lastScanTime: number = 0;
private readonly SCAN_DEBOUNCE_MS = 2000; // Prevent duplicate scans within 2 seconds
// Add cleanup tracking
private isCleaningUp = false;
private isMounted = false;
// Add property to track if we're on desktop
private isDesktop = false;
private isFrontCamera = false;
async created() {
try {
const settings = await databaseUtil.retrieveSettingsForActiveAccount();
this.activeDid = settings.activeDid || "";
this.apiServer = settings.apiServer || "";
this.givenName = settings.firstName || "";
this.hideRegisterPromptOnNewContact =
!!settings.hideRegisterPromptOnNewContact;
this.isRegistered = !!settings.isRegistered;
this.profileImageUrl = settings.profileImageUrl || "";
const account = await libsUtil.retrieveAccountMetadata(this.activeDid);
if (account) {
const name =
(settings.firstName || "") +
(settings.lastName ? ` ${settings.lastName}` : "");
const publicKeyBase64 = Buffer.from(
account.publicKeyHex,
"hex",
).toString("base64");
this.qrValue =
CONTACT_CSV_HEADER +
"\n" +
`"${name}",${account.did},${publicKeyBase64},false,${this.isRegistered}`;
}
} catch (error) {
logger.error("Error initializing component:", {
error: error instanceof Error ? error.message : String(error),
stack: error instanceof Error ? error.stack : undefined,
});
this.$notify({
group: "alert",
type: "danger",
title: "Initialization Error",
text: "Failed to initialize QR renderer or scanner. Please try again.",
});
}
}
async handleBack(): Promise<void> {
await this.cleanupScanner();
this.$router.back();
}
async startScanning() {
if (this.isCleaningUp) {
logger.debug("Cannot start scanning during cleanup");
return;
}
try {
this.error = null;
this.isScanning = true;
this.lastScannedValue = "";
this.lastScanTime = 0;
const scanner = QRScannerFactory.getInstance();
// Add camera state listener
scanner.addCameraStateListener({
onStateChange: (state, message) => {
this.cameraState = state;
this.cameraStateMessage = message;
// Update UI based on camera state
switch (state) {
case "in_use":
this.error = "Camera is in use by another application";
this.isScanning = false;
this.$notify(
{
group: "alert",
type: "warning",
title: "Camera in Use",
text: "Please close other applications using the camera and try again",
},
5000,
);
break;
case "permission_denied":
this.error = "Camera permission denied";
this.isScanning = false;
this.$notify(
{
group: "alert",
type: "warning",
title: "Camera Access Required",
text: "Please grant camera permission to scan QR codes",
},
5000,
);
break;
case "not_found":
this.error = "No camera found";
this.isScanning = false;
this.$notify(
{
group: "alert",
type: "warning",
title: "No Camera",
text: "No camera was found on this device",
},
5000,
);
break;
case "error":
this.error = this.cameraStateMessage || "Camera error";
this.isScanning = false;
break;
}
},
});
// Check if scanning is supported first
if (!(await scanner.isSupported())) {
this.error =
"Camera access requires HTTPS. Please use a secure connection.";
this.isScanning = false;
this.$notify(
{
group: "alert",
type: "warning",
title: "HTTPS Required",
text: "Camera access requires a secure (HTTPS) connection",
},
5000,
);
return;
}
// Start scanning
await scanner.startScan();
} catch (error) {
this.error = error instanceof Error ? error.message : String(error);
this.isScanning = false;
logger.error("Error starting scan:", {
error: error instanceof Error ? error.message : String(error),
stack: error instanceof Error ? error.stack : undefined,
});
}
}
async stopScanning() {
try {
const scanner = QRScannerFactory.getInstance();
await scanner.stopScan();
} catch (error) {
logger.error("Error stopping scan:", {
error: error instanceof Error ? error.message : String(error),
stack: error instanceof Error ? error.stack : undefined,
});
} finally {
this.isScanning = false;
this.lastScannedValue = "";
this.lastScanTime = 0;
}
}
async cleanupScanner() {
if (this.isCleaningUp) {
return;
}
this.isCleaningUp = true;
try {
logger.info("Cleaning up QR scanner resources");
await this.stopScanning();
await QRScannerFactory.cleanup();
} catch (error) {
logger.error("Error during scanner cleanup:", {
error: error instanceof Error ? error.message : String(error),
stack: error instanceof Error ? error.stack : undefined,
});
} finally {
this.isCleaningUp = false;
}
}
danger(message: string, title: string = "Error", timeout = 5000) {
this.$notify(
{
group: "alert",
type: "danger",
title: title,
text: message,
},
timeout,
);
}
/**
* Handle QR code scan result with debouncing to prevent duplicate scans
*/
async onScanDetect(result: string | QRScanResult) {
try {
// Extract raw value from different possible formats
const rawValue =
typeof result === "string"
? result
: result?.rawValue || result?.barcode;
if (!rawValue) {
logger.warn("Invalid scan result - no value found:", result);
return;
}
// Debounce duplicate scans
const now = Date.now();
if (
rawValue === this.lastScannedValue &&
now - this.lastScanTime < this.SCAN_DEBOUNCE_MS
) {
logger.info("Ignoring duplicate scan:", rawValue);
return;
}
// Update scan tracking
this.lastScannedValue = rawValue;
this.lastScanTime = now;
logger.info("Processing QR code scan result:", rawValue);
let contact: Contact;
if (rawValue.includes(CONTACT_IMPORT_CONFIRM_URL_PATH_TIME_SAFARI)) {
const jwt = getContactJwtFromJwtUrl(rawValue);
if (!jwt) {
logger.warn("Invalid QR code format - no JWT found in URL");
this.$notify({
group: "alert",
type: "danger",
title: "Invalid QR Code",
text: "This QR code does not contain valid contact information. Scan a TimeSafari contact QR code.",
});
return;
}
logger.info("Decoding JWT payload from QR code");
const decodedJwt = await decodeEndorserJwt(jwt);
// Process JWT and contact info
if (!decodedJwt?.payload?.own) {
logger.warn("Invalid JWT payload - missing 'own' field");
this.$notify({
group: "alert",
type: "danger",
title: "Invalid Contact Info",
text: "The contact information is incomplete or invalid.",
});
return;
}
const contactInfo = decodedJwt.payload.own;
const did = contactInfo.did || decodedJwt.payload.iss;
if (!did) {
logger.warn("Invalid contact info - missing DID");
this.$notify({
group: "alert",
type: "danger",
title: "Invalid Contact",
text: "The contact DID is missing.",
});
return;
}
// Create contact object
contact = {
did: did,
name: contactInfo.name || "",
publicKeyBase64: contactInfo.publicKeyBase64 || "",
seesMe: contactInfo.seesMe || false,
registered: contactInfo.registered || false,
};
} else if (rawValue.startsWith(CONTACT_CSV_HEADER)) {
const lines = rawValue.split(/\n/);
contact = libsUtil.csvLineToContact(lines[1]);
} else {
this.$notify({
group: "alert",
type: "danger",
title: "Error",
text: "Could not determine the type of contact info. Try again, or tap the QR code to copy it and send it to them.",
});
return;
}
// Add contact but keep scanning
logger.info("Adding new contact to database:", {
did: contact.did,
name: contact.name,
});
await this.addNewContact(contact);
} catch (error) {
logger.error("Error processing contact QR code:", {
error: error instanceof Error ? error.message : String(error),
stack: error instanceof Error ? error.stack : undefined,
});
this.$notify({
group: "alert",
type: "danger",
title: "Error",
text:
error instanceof Error
? error.message
: "Could not process QR code. Please try again.",
});
}
}
async setVisibility(contact: Contact, visibility: boolean) {
const result = await setVisibilityUtil(
this.activeDid,
this.apiServer,
this.axios,
db,
contact,
visibility,
);
if (result.error) {
this.danger(result.error as string, "Error Setting Visibility");
} else if (!result.success) {
logger.warn("Unexpected result from setting visibility:", result);
}
}
async register(contact: Contact) {
logger.info("Submitting contact registration", {
did: contact.did,
name: contact.name,
});
this.$notify(
{
group: "alert",
type: "toast",
text: "",
title: "Registration submitted...",
},
1000,
);
try {
const regResult = await register(
this.activeDid,
this.apiServer,
this.axios,
contact,
);
if (regResult.success) {
contact.registered = true;
const platformService = PlatformServiceFactory.getInstance();
await platformService.dbExec(
"UPDATE contacts SET registered = ? WHERE did = ?",
[true, contact.did],
);
logger.info("Contact registration successful", { did: contact.did });
this.$notify(
{
group: "alert",
type: "success",
title: "Registration Success",
text:
(contact.name || "That unnamed person") + " has been registered.",
},
5000,
);
} else {
this.$notify(
{
group: "alert",
type: "danger",
title: "Registration Error",
text:
(regResult.error as string) ||
"Something went wrong during registration.",
},
5000,
);
}
} catch (error) {
logger.error("Error registering contact:", {
did: contact.did,
error: error instanceof Error ? error.message : String(error),
stack: error instanceof Error ? error.stack : undefined,
});
let userMessage = "There was an error.";
const serverError = error as AxiosError;
if (serverError) {
if (
serverError.response?.data &&
typeof serverError.response.data === "object" &&
"message" in serverError.response.data
) {
userMessage = (serverError.response.data as { message: string })
.message;
} else if (serverError.message) {
userMessage = serverError.message; // Info for the user
} else {
userMessage = JSON.stringify(serverError.toJSON());
}
} else {
userMessage = error as string;
}
// Now set that error for the user to see.
this.$notify(
{
group: "alert",
type: "danger",
title: "Registration Error",
text: userMessage,
},
5000,
);
}
}
onScanError(error: Error) {
this.error = error.message;
logger.error("QR code scan error:", {
error: error.message,
stack: error.stack,
});
}
async onCopyUrlToClipboard() {
const account = (await libsUtil.retrieveFullyDecryptedAccount(
this.activeDid,
)) as Account;
const jwtUrl = await generateEndorserJwtUrlForAccount(
account,
this.isRegistered,
this.givenName,
this.profileImageUrl,
true,
);
useClipboard()
.copy(jwtUrl)
.then(() => {
this.$notify(
{
group: "alert",
type: "toast",
title: "Copied",
text: "Contact URL was copied to clipboard.",
},
2000,
);
});
}
toastQRCodeHelp() {
this.$notify(
{
group: "alert",
type: "info",
title: "QR Code Help",
text: "Click the QR code to copy your contact info to your clipboard.",
},
5000,
);
}
onCopyDidToClipboard() {
//this.onScanDetect([{ rawValue: this.qrValue }]); // good for testing
useClipboard()
.copy(this.activeDid)
.then(() => {
this.$notify(
{
group: "alert",
type: "info",
title: "Copied",
text: "Your DID was copied to the clipboard. Have them paste it in the box on their 'People' screen to add you.",
},
5000,
);
});
}
openUserNameDialog() {
(this.$refs.userNameDialog as IUserNameDialog).open((name: string) => {
this.givenName = name;
});
}
// Lifecycle hooks
mounted() {
this.isMounted = true;
this.isDesktop = this.detectDesktopBrowser();
document.addEventListener("pause", this.handleAppPause);
document.addEventListener("resume", this.handleAppResume);
// Start scanning automatically when view is loaded
this.startScanning();
// Apply mirroring after a short delay to ensure video element is ready
setTimeout(() => {
const videoElement = document.querySelector(
".qr-scanner video",
) as HTMLVideoElement;
if (videoElement) {
videoElement.style.transform = "scaleX(-1)";
}
}, 1000);
}
beforeDestroy() {
this.isMounted = false;
document.removeEventListener("pause", this.handleAppPause);
document.removeEventListener("resume", this.handleAppResume);
this.cleanupScanner();
}
async handleAppPause() {
if (!this.isMounted) return;
logger.info("App paused, stopping scanner");
await this.stopScanning();
}
handleAppResume() {
if (!this.isMounted) return;
logger.info("App resumed, scanner can be restarted by user");
this.isScanning = false;
}
async addNewContact(contact: Contact) {
try {
logger.info("Opening database connection for new contact");
// Check if contact already exists
const platformService = PlatformServiceFactory.getInstance();
const dbAllContacts = await platformService.dbQuery(
"SELECT * FROM contacts WHERE did = ?",
[contact.did],
);
const existingContacts = databaseUtil.mapQueryResultToValues(
dbAllContacts,
) as unknown as Contact[];
const existingContact: Contact | undefined = existingContacts[0];
if (existingContact) {
logger.info("Contact already exists", { did: contact.did });
this.$notify(
{
group: "alert",
type: "warning",
title: "Contact Exists",
text: "This contact has already been added to your list.",
},
5000,
);
return;
}
// Add new contact
// @ts-expect-error because we're just using the value to store to the DB
contact.contactMethods = JSON.stringify(
parseJsonField(contact.contactMethods, []),
);
const { sql, params } = databaseUtil.generateInsertStatement(
contact as unknown as Record<string, unknown>,
"contacts",
);
await platformService.dbExec(sql, params);
if (this.activeDid) {
logger.info("Setting contact visibility", { did: contact.did });
await this.setVisibility(contact, true);
contact.seesMe = true;
}
this.$notify(
{
group: "alert",
type: "success",
title: "Contact Added",
text: this.activeDid
? "They were added, and your activity is visible to them."
: "They were added.",
},
3000,
);
if (
this.isRegistered &&
!this.hideRegisterPromptOnNewContact &&
!contact.registered
) {
setTimeout(() => {
this.$notify(
{
group: "modal",
type: "confirm",
title: "Register",
text: "Do you want to register them?",
onCancel: async (stopAsking?: boolean) => {
if (stopAsking) {
const platformService = PlatformServiceFactory.getInstance();
await platformService.dbExec(
"UPDATE settings SET hideRegisterPromptOnNewContact = ? WHERE id = ?",
[stopAsking, MASTER_SETTINGS_KEY],
);
this.hideRegisterPromptOnNewContact = stopAsking;
}
},
onNo: async (stopAsking?: boolean) => {
if (stopAsking) {
const platformService = PlatformServiceFactory.getInstance();
await platformService.dbExec(
"UPDATE settings SET hideRegisterPromptOnNewContact = ? WHERE id = ?",
[stopAsking, MASTER_SETTINGS_KEY],
);
this.hideRegisterPromptOnNewContact = stopAsking;
}
},
onYes: async () => {
await this.register(contact);
},
promptToStopAsking: true,
},
-1,
);
}, 500);
}
} catch (error) {
logger.error("Error saving contact to database:", {
did: contact.did,
error: error instanceof Error ? error.message : String(error),
stack: error instanceof Error ? error.stack : undefined,
});
this.$notify(
{
group: "alert",
type: "danger",
title: "Contact Error",
text: "Could not save contact. Check if it already exists.",
},
5000,
);
}
}
async onInit(promise: Promise<void>): Promise<void> {
logger.log("[QRScanner] onInit called");
try {
await promise;
this.isInitializing = false;
this.cameraState = "ready";
} catch (error) {
const wrappedError =
error instanceof Error ? error : new Error(String(error));
this.error = wrappedError.message;
this.cameraState = "error";
this.isInitializing = false;
logger.error("Error during QR scanner initialization:", {
error: wrappedError.message,
stack: wrappedError.stack,
});
}
}
onCameraOn(): void {
this.cameraState = "active";
this.isInitializing = false;
this.isFrontCamera = this.preferredCamera === "user";
this.applyCameraMirroring();
}
onCameraOff(): void {
this.cameraState = "off";
}
onDetect(result: unknown): void {
this.isScanning = true;
this.cameraState = "active";
try {
let rawValue: string | undefined;
if (
Array.isArray(result) &&
result.length > 0 &&
"rawValue" in result[0]
) {
rawValue = result[0].rawValue;
} else if (result && typeof result === "object" && "rawValue" in result) {
rawValue = (result as { rawValue: string }).rawValue;
}
if (rawValue) {
this.isInitializing = false;
this.initializationStatus = "QR code captured!";
this.onScanDetect(rawValue);
}
} catch (error) {
this.handleError(error);
} finally {
this.cameraState = "active";
}
}
onDecode(result: string): void {
try {
this.isInitializing = false;
this.initializationStatus = "QR code captured!";
this.onScanDetect(result);
} catch (error) {
this.handleError(error);
}
}
toggleCamera(): void {
this.preferredCamera =
this.preferredCamera === "user" ? "environment" : "user";
this.isFrontCamera = this.preferredCamera === "user";
this.applyCameraMirroring();
}
private handleError(error: unknown): void {
const wrappedError =
error instanceof Error ? error : new Error(String(error));
this.error = wrappedError.message;
this.cameraState = "error";
}
onError(error: Error): void {
this.error = error.message;
this.cameraState = "error";
logger.error("QR code scan error:", {
error: error.message,
stack: error.stack,
});
}
// Add method to detect desktop browser
private detectDesktopBrowser(): boolean {
const userAgent = navigator.userAgent.toLowerCase();
return !/android|webos|iphone|ipad|ipod|blackberry|iemobile|opera mini/i.test(
userAgent,
);
}
// Add method to apply camera mirroring
private applyCameraMirroring(): void {
const videoElement = document.querySelector(
".qr-scanner video",
) as HTMLVideoElement;
if (videoElement) {
// Mirror if it's desktop or front camera on mobile
const shouldMirror =
this.isDesktop || (this.isFrontCamera && !this.isDesktop);
videoElement.style.transform = shouldMirror ? "scaleX(-1)" : "none";
}
}
}
</script>
<style scoped>
.aspect-square {
aspect-ratio: 1 / 1;
}
/* Update styles for camera mirroring */
:deep(.qr-scanner) {
position: relative;
}
/* Remove the default mirroring from CSS since we're handling it in JavaScript */
:deep(.qr-scanner video) {
transform: none;
}
/* Ensure the canvas for QR detection is not mirrored */
:deep(.qr-scanner canvas) {
transform: none;
}
</style>