1 files changed, 53 insertions, 0 deletions
diff --git a/dotfiles/hyprland/.local/bin/touchpad-auto b/dotfiles/hyprland/.local/bin/touchpad-auto
new file mode 100755
index 0000000..830a8f2
--- /dev/null
+++ b/dotfiles/hyprland/.local/bin/touchpad-auto
@@ -0,0 +1,53 @@
+#!/bin/bash
+# Auto-disable touchpad when an external mouse is connected, re-enable when removed.
+# Watches Hyprland socket for device add/remove events.
+
+TOUCHPAD="pixa3854:00-093a:0274-touchpad"
+STATE_FILE="${XDG_RUNTIME_DIR:-/tmp}/touchpad-state"
+
+has_external_mouse() {
+    hyprctl devices -j | jq -e '[.mice[] | select(.name != "'"$TOUCHPAD"'" and .name != "pixa3854:00-093a:0274-mouse" and (.name | test("frmw") | not))] | length > 0' >/dev/null 2>&1
+}
+
+set_touchpad() {
+    hyprctl keyword "device[$TOUCHPAD]:enabled" "$1" >/dev/null
+    if [ "$1" = "true" ]; then
+        echo "enabled" > "$STATE_FILE"
+    else
+        echo "disabled" > "$STATE_FILE"
+    fi
+    # Refresh the waybar indicator (custom/touchpad listens on signal 9).
+    pkill -RTMIN+9 waybar 2>/dev/null
+}
+
+# Set initial state
+if has_external_mouse; then
+    set_touchpad false
+else
+    set_touchpad true
+fi
+
+# BT mice may auto-reconnect after boot — recheck after delay
+(sleep 10 && if has_external_mouse; then set_touchpad false; fi) &
+
+# Watch for device events
+socat -u "UNIX-CONNECT:$XDG_RUNTIME_DIR/hypr/$HYPRLAND_INSTANCE_SIGNATURE/.socket2.sock" - | while read -r line; do
+    case "$line" in
+        mouseadded\>\>*|mouseremoved\>\>*)
+            sleep 0.5
+            if has_external_mouse; then
+                set_touchpad false
+            else
+                set_touchpad true
+            fi
+            ;;
+        configreloaded\>\>*)
+            sleep 0.5
+            if has_external_mouse; then
+                set_touchpad false
+            else
+                set_touchpad true
+            fi
+            ;;
+    esac
+done