Add QR code capture (#6705)

Select a screen region and decode the QR code in it to the clipboard, so
an otpauth:// setup code shown on screen no longer needs a phone.

The decoded value is only ever placed on the clipboard, and marked
sensitive so clipboard history skips it. Decoding is restricted to QR so
a stray barcode elsewhere on screen can't take the clipboard instead.

Co-authored-by: Hlib Kanunnikov <hlibwondertan@gmail.com>
Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>

bin/omarchy-capture-qr

@@ -0,0 +1,36 @@
+#!/bin/bash
+
+# omarchy:summary=Decode a QR code from a screenshot region
+# omarchy:group=capture
+# omarchy:examples=omarchy capture qr
+
+# Keep hyprpicker alive until after grim captures so the screenshot sees the
+# frozen overlay rather than live content shifting during teardown.
+cleanup_freeze() {
+  [[ -n $PID ]] && kill $PID 2>/dev/null
+}
+trap cleanup_freeze EXIT
+
+hyprpicker -r -z >/dev/null 2>&1 &
+PID=$!
+sleep .1
+SELECTION=$(slurp 2>/dev/null)
+
+[[ -z $SELECTION ]] && exit 0
+
+# Decode QR codes only. Leaving the other symbologies enabled lets dense screen
+# content false-positive as an EAN or Code 39 barcode and take over the clipboard.
+RESULT=$(grim -g "$SELECTION" - | zbarimg -q --raw -Sdisable -Sqrcode.enable - 2>/dev/null)
+
+if [[ -z $RESULT ]]; then
+  omarchy-notification-send -g 󰐲 -u critical "No QR code found" "Select a region containing a QR code"
+  exit 1
+fi
+
+# QR codes routinely carry secrets, like the otpauth:// URIs behind 2FA setup
+# codes, so the decoded value goes to the clipboard and nowhere else. Printing it
+# or putting it in the notification would leak it to the session journal and to
+# the notification history, and an unmarked copy would be retained by clipboard
+# history. Pasting still works; only the recorded copy is given up.
+printf '%s' "$RESULT" | wl-copy --sensitive
+omarchy-notification-send -g 󰐲 "QR code copied to clipboard"

default/omarchy/omarchy-menu.jsonc

@@ -53,6 +53,7 @@
   "trigger.capture.screenrecord.stop": {"icon":"","label":"Stop Screenrecording","when":"pgrep -f '^gpu-screen-recorder'","action":"omarchy-capture-screenrecording --stop-recording"},
   "trigger.capture.screenrecord": {"icon":"","label":"Screenrecord"},
   "trigger.capture.text": {"icon":"󰴑","label":"Text","action":"omarchy-capture-text"},
+  "trigger.capture.qr": {"icon":"󰐲","label":"QR Code","action":"omarchy-capture-qr"},
   "trigger.capture.color": {"icon":"󰃉","label":"Color","action":"pkill hyprpicker || hyprpicker -a"},
   "trigger.capture.screenrecord.no-audio": {"icon":"","label":"With no audio","action":"omarchy-capture-screenrecording"},
   "trigger.capture.screenrecord.desktop-audio": {"icon":"","label":"With desktop audio","action":"omarchy-capture-screenrecording --with-desktop-audio"},

install/omarchy-base.packages

@@ -146,4 +146,5 @@ xournalpp
 yaru-icon-theme
 yay
 yt-dlp
+zbar
 zoxide

migrations/1786447584.sh

@@ -0,0 +1,3 @@
+echo "Install QR code scanning support"
+
+omarchy-pkg-add zbar