Don't detect center button touch until 250ms after wheel touch

1 files changed, 12 insertions, 1 deletions

diff --git a/src/tangara/input/input_touch_wheel.cpp b/src/tangara/input/input_touch_wheel.cpp
index 19ac5211..6621a77e 100644
--- a/src/tangara/input/input_touch_wheel.cpp
+++ b/src/tangara/input/input_touch_wheel.cpp
@@ -21,6 +21,8 @@
 #include "lua/property.hpp"
 #include "ui/ui_events.hpp"
 
+#include "esp_timer.h"
+
 namespace input {
 
 TouchWheel::TouchWheel(drivers::NvsStorage& nvs, drivers::TouchWheel& wheel)
@@ -77,7 +79,16 @@ auto TouchWheel::read(lv_indev_data_t* data) -> void {
     data->enc_diff = 0;
   }
 
-  centre_.update(wheel_data.is_button_touched && !wheel_data.is_wheel_touched,
+  // Prevent accidental center button touches while scrolling
+  if (wheel_data.is_wheel_touched) {
+    last_wheel_touch_time_ = esp_timer_get_time();
+  }
+
+  bool wheel_touch_timed_out =
+      esp_timer_get_time() - last_wheel_touch_time_ > SCROLL_TIMEOUT_US;
+
+  centre_.update(wheel_touch_timed_out && wheel_data.is_button_touched &&
+                     !wheel_data.is_wheel_touched,
                  data);
 
   // If the user is touching the wheel but not scrolling, then they may be