7 files changed, 134 insertions, 7 deletions
diff --git a/src/ui/include/lvgl_task.hpp b/src/ui/include/lvgl_task.hpp
index 25e7dd14..8e387683 100644
--- a/src/ui/include/lvgl_task.hpp
+++ b/src/ui/include/lvgl_task.hpp
@@ -14,11 +14,12 @@
 #include "freertos/task.h"
 
 #include "display.hpp"
+#include "relative_wheel.hpp"
 #include "touchwheel.hpp"
 
 namespace ui {
 
-auto StartLvgl(std::weak_ptr<drivers::TouchWheel> touch_wheel,
+auto StartLvgl(std::weak_ptr<drivers::RelativeWheel> touch_wheel,
                std::weak_ptr<drivers::Display> display) -> void;
 
 }  // namespace ui
diff --git a/src/ui/include/screen.hpp b/src/ui/include/screen.hpp
new file mode 100644
index 00000000..87a0d9b8
--- /dev/null
+++ b/src/ui/include/screen.hpp
@@ -0,0 +1,28 @@
+/*
+ * Copyright 2023 jacqueline <me@jacqueline.id.au>
+ *
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+
+#pragma once
+
+#include <memory>
+
+#include "core/lv_obj.h"
+#include "core/lv_obj_tree.h"
+#include "lvgl.h"
+
+namespace ui {
+
+class Screen {
+ public:
+  Screen() : root_(lv_obj_create(NULL)) {}
+  virtual ~Screen() { lv_obj_del(root_); }
+
+  auto root() -> lv_obj_t* { return root_; }
+
+ protected:
+  lv_obj_t* const root_;
+};
+
+}  // namespace ui
diff --git a/src/ui/include/screen_menu.hpp b/src/ui/include/screen_menu.hpp
new file mode 100644
index 00000000..a0b07b9e
--- /dev/null
+++ b/src/ui/include/screen_menu.hpp
@@ -0,0 +1,29 @@
+/*
+ * Copyright 2023 jacqueline <me@jacqueline.id.au>
+ *
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+
+#pragma once
+
+#include <memory>
+
+#include "lvgl.h"
+
+#include "screen.hpp"
+
+namespace ui {
+namespace screens {
+
+class Menu : public Screen {
+ public:
+  Menu();
+  ~Menu();
+
+ private:
+  lv_obj_t* container_;
+  lv_obj_t* label_;
+};
+
+}  // namespace screens
+}  // namespace ui
diff --git a/src/ui/include/screen_splash.hpp b/src/ui/include/screen_splash.hpp
new file mode 100644
index 00000000..1ee7dd89
--- /dev/null
+++ b/src/ui/include/screen_splash.hpp
@@ -0,0 +1,30 @@
+/*
+ * Copyright 2023 jacqueline <me@jacqueline.id.au>
+ *
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+
+#pragma once
+
+#include <memory>
+
+#include "lvgl.h"
+
+#include "screen.hpp"
+
+namespace ui {
+namespace screens {
+
+class Splash : public Screen {
+ public:
+  Splash();
+  ~Splash();
+
+ private:
+  lv_obj_t* container_;
+  lv_obj_t* label_;
+  lv_obj_t* spinner_;
+};
+
+}  // namespace screens
+}  // namespace ui
diff --git a/src/ui/include/ui_fsm.hpp b/src/ui/include/ui_fsm.hpp
index 2afcfa86..d4d23bb0 100644
--- a/src/ui/include/ui_fsm.hpp
+++ b/src/ui/include/ui_fsm.hpp
@@ -8,9 +8,9 @@
 
 #include <memory>
 
+#include "relative_wheel.hpp"
 #include "tinyfsm.hpp"
 
-#include "database.hpp"
 #include "display.hpp"
 #include "screen.hpp"
 #include "storage.hpp"
@@ -22,9 +22,8 @@ namespace ui {
 class UiState : public tinyfsm::Fsm<UiState> {
  public:
   static auto Init(drivers::GpioExpander* gpio_expander,
-                   std::weak_ptr<drivers::TouchWheel> touchwheel,
-                   std::weak_ptr<drivers::Display> display,
-                   std::weak_ptr<database::Database> database) -> void;
+                   std::weak_ptr<drivers::RelativeWheel> touchwheel,
+                   std::weak_ptr<drivers::Display> display) -> void;
 
   virtual ~UiState() {}
 
@@ -43,9 +42,8 @@ class UiState : public tinyfsm::Fsm<UiState> {
 
  protected:
   static drivers::GpioExpander* sGpioExpander;
-  static std::weak_ptr<drivers::TouchWheel> sTouchWheel;
+  static std::weak_ptr<drivers::RelativeWheel> sTouchWheel;
   static std::weak_ptr<drivers::Display> sDisplay;
-  static std::weak_ptr<database::Database> sDatabase;
 
   static std::shared_ptr<Screen> sCurrentScreen;
 };
diff --git a/src/ui/include/ui_tick.hpp b/src/ui/include/ui_tick.hpp
new file mode 100644
index 00000000..37f8a8bd
--- /dev/null
+++ b/src/ui/include/ui_tick.hpp
@@ -0,0 +1,11 @@
+/*
+ * Copyright 2023 jacqueline <me@jacqueline.id.au>
+ *
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+
+#pragma once
+
+#include "esp_timer.h"
+
+#define LV_TICK_CUSTOM_SYS_TIME_EXPR (esp_timer_get_time() / 1000)
diff --git a/src/ui/include/wheel_encoder.hpp b/src/ui/include/wheel_encoder.hpp
new file mode 100644
index 00000000..0651ce0b
--- /dev/null
+++ b/src/ui/include/wheel_encoder.hpp
@@ -0,0 +1,30 @@
+/*
+ * Copyright 2023 jacqueline <me@jacqueline.id.au>
+ *
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+
+#pragma once
+
+#include <memory>
+
+#include "hal/lv_hal_indev.h"
+
+#include "relative_wheel.hpp"
+
+namespace ui {
+
+class TouchWheelEncoder {
+  public:
+    explicit TouchWheelEncoder(std::weak_ptr<drivers::RelativeWheel> wheel);
+
+    auto Read(lv_indev_data_t *data) -> void;
+    auto registration() -> lv_indev_t* { return registration_; }
+
+  private:
+      lv_indev_drv_t driver_;
+      lv_indev_t *registration_;
+      std::weak_ptr<drivers::RelativeWheel> wheel_;
+};
+
+} // namespace ui