add scene handlers declarations

scenes/mh_z19_scene.c

@@ -0,0 +1,25 @@
+#include "mh_z19_scene.h"
+
+// Array of on_enter handlers
+AppSceneOnEnterCallback mh_z19_scene_on_enter_handlers[MhZ19AppSceneCount] = {
+    mh_z19_scene_setup_on_enter,
+    mh_z19_scene_main_on_enter,
+    mh_z19_scene_menu_on_enter};
+
+// Array of on_event handlers
+AppSceneOnEventCallback mh_z19_scene_on_event_handlers[MhZ19AppSceneCount] = {
+    mh_z19_scene_setup_on_event,
+    mh_z19_scene_main_on_event,
+    mh_z19_scene_menu_on_event};
+
+// Array of on_exit handlers
+AppSceneOnExitCallback mh_z19_scene_on_exit_handlers[MhZ19AppSceneCount] = {
+    mh_z19_scene_setup_on_exit,
+    mh_z19_scene_main_on_exit,
+    mh_z19_scene_menu_on_exit};
+
+const SceneManagerHandlers mh_z19_scene_handlers = {
+    .on_enter_handlers = mh_z19_scene_on_enter_handlers,
+    .on_event_handlers = mh_z19_scene_on_event_handlers,
+    .on_exit_handlers = mh_z19_scene_on_exit_handlers,
+    .scene_num = MhZ19AppSceneCount};

scenes/mh_z19_scene.h

@@ -1,8 +1,27 @@
 #pragma once
 
+#include <gui/scene_manager.h>
+
+extern const SceneManagerHandlers mh_z19_scene_handlers;
+
+// For MhZ19AppSceneSetup
+void mh_z19_scene_setup_on_enter(void* context);
+bool mh_z19_scene_setup_on_event(void* context, SceneManagerEvent event);
+void mh_z19_scene_setup_on_exit(void* context);
+
+// For MhZ19AppSceneMain
+void mh_z19_scene_main_on_enter(void* context);
+bool mh_z19_scene_main_on_event(void* context, SceneManagerEvent event);
+void mh_z19_scene_main_on_exit(void* context);
+
+// For MhZ19AppSceneMenu
+void mh_z19_scene_menu_on_enter(void* context);
+bool mh_z19_scene_menu_on_event(void* context, SceneManagerEvent event);
+void mh_z19_scene_menu_on_exit(void* context);
+
 typedef enum MhZ19AppScene {
     MhZ19AppSceneSetup,
     MhZ19AppSceneMain,
     MhZ19AppSceneMenu,
     MhZ19AppSceneCount,
-} MhZ19AppScene;
+} MhZ19AppScene;