haptics: buzz on boot, and when changing focus of items.

src/ui/lvgl_task.cpp

@@ -49,6 +49,8 @@ namespace ui {
 
 [[maybe_unused]] static const char* kTag = "ui_task";
 
+static auto group_focus_cb(lv_group_t *group) -> void;
+
 UiTask::UiTask() {}
 
 UiTask::~UiTask() {
@@ -75,6 +77,7 @@ auto UiTask::Main() -> void {
     if (input_ && current_screen_->group() != current_group) {
       current_group = current_screen_->group();
       lv_indev_set_group(input_->registration(), current_group);
+      lv_group_set_focus_cb(current_group, &group_focus_cb);
     }
 
     if (current_screen_) {
@@ -98,4 +101,11 @@ auto UiTask::Start() -> UiTask* {
   return ret;
 }
 
+static auto group_focus_cb(lv_group_t *group) -> void {
+  // TODO(robin): we probably want to vary this, configure this, etc
+  events::System().Dispatch(system_fsm::HapticTrigger{
+    .effect = drivers::Haptics::Effect::kMediumClick1_100Pct,
+  });
+}
+
 }  // namespace ui

src/ui/ui_fsm.cpp

@@ -12,6 +12,7 @@
 #include "battery.hpp"
 #include "core/lv_obj.h"
 #include "database.hpp"
+#include "haptics.hpp"
 #include "misc/lv_gc.h"
 
 #include "audio_events.hpp"
@@ -135,6 +136,11 @@ void Splash::exit() {
     sDisplay->SetDisplayOn(
         sServices->gpios().Get(drivers::IGpios::Pin::kKeyLock));
   }
+
+  // buzz a bit to tell the user we're done booting
+  events::System().Dispatch(system_fsm::HapticTrigger{
+      .effect = drivers::Haptics::Effect::kLongDoubleSharpTick1_100Pct,
+  });
 }
 
 void Splash::react(const system_fsm::BootComplete& ev) {