C++ conversion (#80)

Converted project to C++

Tactility/Source/Services/Loader/Loader.h

@@ -0,0 +1,74 @@
+#pragma once
+
+#include "AppManifest.h"
+#include "Bundle.h"
+#include "Pubsub.h"
+#include "ServiceManifest.h"
+#include "TactilityCore.h"
+
+namespace tt::service::loader {
+
+typedef struct Loader Loader;
+
+typedef enum {
+    LoaderStatusOk,
+    LoaderStatusErrorAppStarted,
+    LoaderStatusErrorUnknownApp,
+    LoaderStatusErrorInternal,
+} LoaderStatus;
+
+typedef enum {
+    LoaderEventTypeApplicationStarted,
+    LoaderEventTypeApplicationShowing,
+    LoaderEventTypeApplicationHiding,
+    LoaderEventTypeApplicationStopped
+} LoaderEventType;
+
+typedef struct {
+    App* app;
+} LoaderEventAppStarted;
+
+typedef struct {
+    App* app;
+} LoaderEventAppShowing;
+
+typedef struct {
+    App* app;
+} LoaderEventAppHiding;
+
+typedef struct {
+    const AppManifest* manifest;
+} LoaderEventAppStopped;
+
+typedef struct {
+    LoaderEventType type;
+    union {
+        LoaderEventAppStarted app_started;
+        LoaderEventAppShowing app_showing;
+        LoaderEventAppHiding app_hiding;
+        LoaderEventAppStopped app_stopped;
+    };
+} LoaderEvent;
+
+/**
+ * @brief Start an app
+ * @param[in] id application name or id
+ * @param[in] blocking application arguments
+ * @param[in] bundle optional bundle. Ownership is transferred to Loader.
+ * @return LoaderStatus
+ */
+LoaderStatus start_app(const std::string& id, bool blocking, const Bundle& bundle);
+
+/**
+ * @brief Stop the currently showing app. Show the previous app if any app was still running.
+ */
+void stop_app();
+
+App _Nullable get_current_app();
+
+/**
+ * @brief PubSub for LoaderEvent
+ */
+PubSub* get_pubsub();
+
+} // namespace