From d5e55c9c577feb6f8000bad3c37045a2cd7c9b4c Mon Sep 17 00:00:00 2001 From: Adam Soltys Date: Tue, 23 Jun 2026 23:05:52 -0700 Subject: Add QR scanner to the send page (lazy-loaded decoder) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Scan a Bitcoin address, a BIP21 URI (fills address + amount), or a signed-transaction QR (opens a broadcast confirmation, then relays it) from a viewfinder button on the Send form. Decoder strategy keeps the main bundle small: - Prefer the native BarcodeDetector (Chrome desktop/Android) — no lib. - Otherwise lazy-load jsQR from a separate dist/jsqr.js, only when the scanner is opened. jsQR stays out of index.html (~424 KB vs ~551 KB) and off the initial load. - The service worker precaches jsqr.js so offline scanning works for installed PWAs on browsers without BarcodeDetector. The scanner needs a camera + secure context, so it never shows on a standalone file:// page; offline air-gapped signing is unaffected. Co-Authored-By: Claude Opus 4.8 (1M context) --- package.json | 1 + 1 file changed, 1 insertion(+) (limited to 'package.json') diff --git a/package.json b/package.json index eef5b5d..a9d2971 100644 --- a/package.json +++ b/package.json @@ -13,6 +13,7 @@ "@scure/bip32": "^1.7.0", "@scure/bip39": "^1.6.0", "@scure/btc-signer": "^1.8.1", + "jsqr": "^1.4.0", "nostr-tools": "^2.23.5", "qrcode-generator": "^2.0.4" }, -- cgit v1.2.3