As requested by Baroque_0bamo:

> i wish the visual feedback could be configured, or as a default
> de-activated. i just realized upon waking up, in a dark environment,
> that the pb feedback provides by far the most light of my entire setup,
> when flashing a white screen. i can see situations (in a cinema, in a
> bed, in ill.lit street at night,, etc.) where this would attract a lot
> of unwanted attention to the device and its operator.
---
 src/main.rs             | 12 +++++++++---
 src/wayland_protocol.rs |  3 +++
 2 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/src/main.rs b/src/main.rs
index a23e254..5bc7994 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -19,6 +19,7 @@ use touch_pass::TouchState;
 fn main() {
     let mut debug = false;
     let mut notouch = false;
+    let mut nofeedback = false;
     let mut statuscommand: Option<Vec<String>> = None;
     let mut parsefont = false;
     let mut fontname: String = "Sans".into();
@@ -26,6 +27,7 @@ fn main() {
         match argument.as_str() {
             "-d" | "--debug" => debug = true,
             "-T" | "--notouch" => notouch = true,
+            "-F" | "--nofeedback" => nofeedback = true,
             "-s" | "--statuscommand" => statuscommand = Some(Vec::new()),
             "-f" | "--font" => parsefont = true,
             "-h" | "--help" => {
@@ -34,6 +36,7 @@ fn main() {
                     " -d / --debug                    Debug mode (allows quiting on any keypress)"
                 );
                 eprintln!(" -T / --notouch                  Disable touch support");
+                eprintln!(" -F / --nofeedback               Disable touch feedback");
                 eprintln!(" -f / --font [font               Set font family");
                 eprintln!(" -s / --statuscommand [command]  Run this command for a status line, it should run continuously and each new output line will become the status line");
                 std::process::exit(0);
@@ -102,7 +105,8 @@ fn main() {
         None
     };
 
-    let (mut way_state, mut event_queue) = init_wayland(&fontname, debug, notouch, status);
+    let (mut way_state, mut event_queue) =
+        init_wayland(&fontname, debug, notouch, nofeedback, status);
     let wait_between_lock_unlock = time::Duration::from_secs(2);
     let wait_between_polling = time::Duration::from_millis(250);
 
@@ -182,8 +186,10 @@ fn main() {
                         .unwrap()
                         .add_touch(last_down.x, last_down.y)
                     {
-                        way_state.invert();
-                        way_state.redraw = true;
+                        if !way_state.nofeedback {
+                            way_state.invert();
+                            way_state.redraw = true;
+                        }
                     }
                 }
             }
diff --git a/src/wayland_protocol.rs b/src/wayland_protocol.rs
index c0a0adb..ce66979 100644
--- a/src/wayland_protocol.rs
+++ b/src/wayland_protocol.rs
@@ -66,6 +66,7 @@ pub struct State {
     pub redraw: bool,
     pub debug: bool, // In debug mode, a simple ESC suffices to unlock (useful for testing without touch support)
     notouch: bool,   // disable touch support  (for devices that don't have it)
+    pub nofeedback: bool, // disable visual feedback
     wm_base: Option<xdg_wm_base::XdgWmBase>,
     zxdg_manager: Option<zxdg_output_manager_v1::ZxdgOutputManagerV1>,
     pub wl_shm: Option<wl_shm::WlShm>,
@@ -275,6 +276,7 @@ pub fn init_wayland(
     fontname: &str,
     debug: bool,
     notouch: bool,
+    nofeedback: bool,
     status: Arc<Mutex<String>>,
 ) -> (State, EventQueue<State>) {
     // Create a Wayland connection by connecting to the server through the
@@ -332,6 +334,7 @@ pub fn init_wayland(
         scale: 1, //will be set by wloutput scale callback
         debug,
         notouch,
+        nofeedback,
         running: true,
         zxdg_manager: None,
         wl_shm: None,
-- 
2.47.1

Thanks!

To git@git.sr.ht:~anjan/peanutbutter
   90bd4e17..f02fa612  master -> master