feat(hyprland): add touchpad state indicator to waybar

The $mod+F9 toggle and the toggle-touchpad / touchpad-auto scripts already worked, but the scripts lived only in ~/.local/bin and were never committed, and there was no way to see the touchpad's state at a glance.

I committed both scripts into the repo so stow installs them, and added a waybar indicator: a waybar-touchpad status script and a custom/touchpad module that shows a mouse glyph when the touchpad is on and a mouse-off glyph (in the dupre orange) when it's off. The scripts signal the module with pkill -RTMIN+9 waybar after each state change, so the icon updates the moment the touchpad toggles. touchpad-auto now runs at login via exec-once.

The waybar-touchpad script has unit tests under tests/waybar-touchpad/ covering the enabled, disabled, and missing-state-file cases.

2 files changed, 14 insertions, 0 deletions

diff --git a/dotfiles/hyprland/.config/waybar/config b/dotfiles/hyprland/.config/waybar/config
index 55ca359..2ae43fe 100644
--- a/dotfiles/hyprland/.config/waybar/config
+++ b/dotfiles/hyprland/.config/waybar/config
@@ -17,6 +17,7 @@
         "group/sysmonitor",
         "custom/netspeed",
         "pulseaudio",
+        "custom/touchpad",
         "idle_inhibitor",
         "custom/pocketbook",
         "tray",
@@ -141,6 +142,13 @@
         "on-scroll-down": "pactl set-sink-volume @DEFAULT_SINK@ -5%"
     },
 
+    "custom/touchpad": {
+        "exec": "waybar-touchpad",
+        "return-type": "json",
+        "signal": 9,
+        "on-click": "toggle-touchpad"
+    },
+
     "idle_inhibitor": {
         "format": "<span size='large'>{icon}</span>",
         "format-icons": {
diff --git a/dotfiles/hyprland/.config/waybar/style.css b/dotfiles/hyprland/.config/waybar/style.css
index 3f7814b..3a849c5 100644
--- a/dotfiles/hyprland/.config/waybar/style.css
+++ b/dotfiles/hyprland/.config/waybar/style.css
@@ -76,6 +76,7 @@ window#waybar {
 #custom-date,
 #custom-worldclock,
 #custom-layout,
+#custom-touchpad,
 #window {
     padding: 0.45rem;
     margin: 0.3rem;
@@ -96,6 +97,7 @@ window#waybar {
 #custom-netspeed:hover,
 #pulseaudio:hover,
 #sysmonitor:hover,
+#custom-touchpad:hover,
 #custom-layout:hover {
     background-color: #474544;
     border-radius: 1rem;
@@ -106,6 +108,10 @@ window#waybar {
     color: #d47c59;
 }
 
+#custom-touchpad.disabled {
+    color: #d47c59;
+}
+
 #temperature.warning {
     color: #d7af5f;
 }