Keyboard improvements (#240)

- Renamed various keyboard functions so it's easier to differentiate hardware versus software keyboard functionality
- Created `Tactility/lvgl/Keyboard.h` as a proxy  for the internal `Gui` service.
- Implemented `tt_lvgl_keyboard.h` in `TactilityC`.

Tactility/Source/lvgl/Init.cpp

@@ -1,5 +1,5 @@
 #include "Tactility/app/display/DisplaySettings.h"
-#include "Tactility/lvgl/LvglKeypad.h"
+#include "Tactility/lvgl/Keyboard.h"
 
 #include "Tactility/hal/display/DisplayDevice.h"
 #include "Tactility/hal/touch/TouchDevice.h"
@@ -68,7 +68,7 @@ static bool initKeyboard(const std::shared_ptr<hal::display::DisplayDevice>& dis
         if (keyboard->start(display->getLvglDisplay())) {
             lv_indev_t* keyboard_indev = keyboard->getLvglIndev();
             lv_indev_set_user_data(keyboard_indev, keyboard.get());
-            tt::lvgl::keypad_set_indev(keyboard_indev);
+            tt::lvgl::hardware_keyboard_set_indev(keyboard_indev);
             TT_LOG_I(TAG, "Keyboard started");
             return true;
         } else {

Tactility/Source/lvgl/Keyboard.cpp

@@ -0,0 +1,44 @@
+#include "Tactility/lvgl/Keyboard.h"
+#include "Tactility/service/gui/Gui.h"
+
+namespace tt::lvgl {
+
+static lv_indev_t* keyboard_device = nullptr;
+
+void software_keyboard_show(lv_obj_t* textarea) {
+    service::gui::softwareKeyboardShow(textarea);
+}
+
+void software_keyboard_hide() {
+    service::gui::softwareKeyboardHide();
+}
+
+bool software_keyboard_is_enabled() {
+    return service::gui::softwareKeyboardIsEnabled();
+}
+
+void software_keyboard_activate(lv_group_t* group) {
+    if (keyboard_device != nullptr) {
+        lv_indev_set_group(keyboard_device, group);
+    }
+}
+
+void software_keyboard_deactivate() {
+    if (keyboard_device != nullptr) {
+        lv_indev_set_group(keyboard_device, nullptr);
+    }
+}
+
+bool hardware_keyboard_is_available() {
+    return keyboard_device != nullptr;
+}
+
+void hardware_keyboard_set_indev(lv_indev_t* device) {
+    keyboard_device = device;
+}
+
+void keyboard_add_textarea(lv_obj_t* textarea) {
+    service::gui::keyboardAddTextArea(textarea);
+}
+
+}

Tactility/Source/lvgl/LvglKeypad.cpp

@@ -1,27 +0,0 @@
-#include "Tactility/lvgl/LvglKeypad.h"
-
-namespace tt::lvgl {
-
-static lv_indev_t* keyboard_device = nullptr;
-
-bool keypad_is_available() {
-    return keyboard_device != nullptr;
-}
-
-void keypad_set_indev(lv_indev_t* device) {
-    keyboard_device = device;
-}
-
-void keypad_activate(lv_group_t* group) {
-    if (keyboard_device != nullptr) {
-        lv_indev_set_group(keyboard_device, group);
-    }
-}
-
-void keypad_deactivate() {
-    if (keyboard_device != nullptr) {
-        lv_indev_set_group(keyboard_device, nullptr);
-    }
-}
-
-} // namespace