feat(core): add barcode scanner - #860
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WalkthroughAdds camera detection and barcode scanning components that use the device camera and ZXing WASM detector. Exports the new components and service from the core library. Adds optional barcode scanner support to Formly text inputs. Adds a scanner example, schema configuration, translations, dependencies, build asset configuration, tests, and setup documentation. Estimated code review effort: 4 (Complex) | ~45 minutes Merge Risk: 🟡 Moderate · up to The PR adds camera-based scanning and writes decoded values into form controls. Closing the scanner while camera setup or decoding is pending can leave work running and potentially keep a permitted camera stream active after the dialog closes; canceled dialogs may also emit an empty result. These bounded browser-side lifecycle and correctness issues should be fixed or explicitly accepted before merge. 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
Full details: Docstring CoverageExplanation Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 2 functions across 10 files. (9 skipped: 9 unsupported.)
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Actionable comments posted: 4
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Inline comments:
In `@projects/ng-core-tester/src/assets/i18n/fr.json`:
- Line 81: Update the French translation for the “Not available on your device”
key to use “appareil” instead of the English word “device”, preserving the rest
of the translated message.
Apply the same fix in `@projects/ng-core-tester/src/assets/i18n/it.json` at line
66: The missing Italian accessibility-label translation is part of the same
scanner-localization remediation.
In
`@projects/rero/ng-core/src/lib/core/component/barcode-scanner/barcode-scanner-dialog/barcode-scanner-dialog.component.ts`:
- Line 77: Update the scan loop around scanFrame and stopScanner so destruction
sets a stopped flag, and check that flag immediately after await
detector.detect(video) before scheduling another animation frame. Preserve
scanning while active, but prevent any rescheduling once stopScanner has run.
- Line 34: Move the camera access, WASM initialization, frame scheduling, and
runtime state from startScanner, scanFrame, and stopScanner into a dedicated
scanner service with matching lifecycle methods. Keep the dialog component
responsible only for the video element, dialog result handling, and error
display, delegating scanner startup, frame processing, and cleanup to the
service.
In
`@projects/rero/ng-core/src/lib/core/component/barcode-scanner/barcode-scanner.component.ts`:
- Line 86: Update the DynamicDialogRef onClose subscription in the barcode
scanner component to emit through scanned only when the received result is a
string; ignore absent results from canceled dialog closures while preserving
normal scanned-value emission.
🪄 Autofix
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Run ID: 68c91fc6-8798-448b-8d67-e01c6d20ed2e
⛔ Files ignored due to path filters (1)
pnpm-lock.yamlis excluded by!**/pnpm-lock.yaml
📒 Files selected for processing (19)
angular.jsonpackage.jsonprojects/ng-core-tester/src/app/home/home.component.htmlprojects/ng-core-tester/src/app/home/home.component.tsprojects/ng-core-tester/src/app/record/editor/schema.jsonprojects/ng-core-tester/src/assets/i18n/de.jsonprojects/ng-core-tester/src/assets/i18n/fr.jsonprojects/ng-core-tester/src/assets/i18n/it.jsonprojects/rero/ng-core/README.mdprojects/rero/ng-core/package.jsonprojects/rero/ng-core/src/lib/core/component/barcode-scanner/barcode-scanner-dialog/barcode-scanner-dialog.component.spec.tsprojects/rero/ng-core/src/lib/core/component/barcode-scanner/barcode-scanner-dialog/barcode-scanner-dialog.component.tsprojects/rero/ng-core/src/lib/core/component/barcode-scanner/barcode-scanner.component.spec.tsprojects/rero/ng-core/src/lib/core/component/barcode-scanner/barcode-scanner.component.tsprojects/rero/ng-core/src/lib/core/index.tsprojects/rero/ng-core/src/lib/core/service/camera-detection/camera-detection.service.spec.tsprojects/rero/ng-core/src/lib/core/service/camera-detection/camera-detection.service.tsprojects/rero/ng-core/src/lib/formly/types/input/input.component.spec.tsprojects/rero/ng-core/src/lib/formly/types/input/input.component.ts
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Add a camera-based barcode/QR scanner button that opens a dialog and emits the decoded value, built on barcode-detector's ZXing WASM ponyfill. * add barcode scanner into the formly input type * add CameraDetectionService to hide the button when no camera is available Co-Authored-by: Bertrand Zuchuat <bertrand.zuchuat@rero.ch>
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An unexpected error occurred while generating fixes: Not Found - https://docs.github.com/rest/git/refs#get-a-reference |
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@coderabbitai I've made all the corrections. Can you approve them? |
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✅ Action performedComments resolved. Approval is disabled; enable |
2 participants
Add a camera-based barcode/QR scanner button that opens a dialog
and emits the decoded value, built on barcode-detector's ZXing
WASM ponyfill.