Handle lock state in each input device, instead of in the lvgl driver

1 files changed, 20 insertions, 3 deletions

diff --git a/src/tangara/input/input_nav_buttons.cpp b/src/tangara/input/input_nav_buttons.cpp
index 0c904a84..54bef7a6 100644
--- a/src/tangara/input/input_nav_buttons.cpp
+++ b/src/tangara/input/input_nav_buttons.cpp
@@ -17,11 +17,20 @@ namespace input {
 NavButtons::NavButtons(drivers::IGpios& gpios)
     : gpios_(gpios),
       up_("upper", {}, actions::scrollUp(), actions::select(), {}),
-      down_("lower", {}, actions::scrollDown(), actions::select(), {}) {}
+      down_("lower", {}, actions::scrollDown(), actions::select(), {}),
+      locked_(false) {}
 
 auto NavButtons::read(lv_indev_data_t* data) -> void {
-  up_.update(!gpios_.Get(drivers::IGpios::Pin::kKeyUp), data);
-  down_.update(!gpios_.Get(drivers::IGpios::Pin::kKeyDown), data);
+  bool up = !gpios_.Get(drivers::IGpios::Pin::kKeyUp);
+  bool down = !gpios_.Get(drivers::IGpios::Pin::kKeyDown);
+
+  if ((up && down) || locked_) {
+    up = false;
+    down = false;
+  }
+
+  up_.update(up, data);
+  down_.update(down, data);
 }
 
 auto NavButtons::name() -> std::string {
@@ -33,4 +42,12 @@ auto NavButtons::triggers()
   return {up_, down_};
 }
 
+auto NavButtons::onLock() -> void {
+  locked_ = true;
+}
+
+auto NavButtons::onUnlock() -> void {
+  locked_ = false;
+}
+
 }  // namespace input