refactor app code (#93)

Tactility/Source/app/App.h

@@ -2,98 +2,28 @@
 
 #include "Manifest.h"
 #include "Bundle.h"
-#include "Mutex.h"
 
 namespace tt::app {
 
-typedef enum {
-    StateInitial, // App is being activated in loader
-    StateStarted, // App is in memory
-    StateShowing, // App view is created
-    StateHiding,  // App view is destroyed
-    StateStopped  // App is not in memory
-} State;
-
 typedef union {
     struct {
-        bool show_statusbar : 1;
+        bool showStatusbar : 1;
     };
     unsigned char flags;
 } Flags;
 
-
-class AppInstance {
-
-private:
-
-    Mutex mutex = Mutex(MutexTypeNormal);
-    const Manifest& manifest;
-    State state = StateInitial;
-    Flags flags = { .show_statusbar = true };
-    /** @brief Optional parameters to start the app with
-     * When these are stored in the app struct, the struct takes ownership.
-     * Do not mutate after app creation.
-     */
-    tt::Bundle parameters;
-    /** @brief @brief Contextual data related to the running app's instance
-     * The app can attach its data to this.
-     * The lifecycle is determined by the on_start and on_stop methods in the AppManifest.
-     * These manifest methods can optionally allocate/free data that is attached here.
-     */
-    void* _Nullable data = nullptr;
-
+/**
+ * A limited representation of the application instance.
+ * Do not store references or pointers to these!
+ */
+class App {
 public:
-
-    AppInstance(const Manifest& manifest) :
-        manifest(manifest) {}
-
-    AppInstance(const Manifest& manifest, const Bundle& parameters) :
-        manifest(manifest),
-        parameters(parameters) {}
-
-    void setState(State state);
-    State getState();
-
-    const Manifest& getManifest();
-
-    Flags getFlags();
-    void setFlags(Flags flags);
-
-    _Nullable void* getData();
-    void setData(void* data);
-
-    const Bundle& getParameters();
+    virtual ~App() {};
+    virtual const Manifest& getManifest() const = 0;
+    virtual _Nullable void* getData() const = 0;
+    virtual void setData(void* data) = 0;
+    virtual const Bundle& getParameters() const = 0;
+    virtual Flags getFlags() const = 0;
 };
 
-/** @brief Create an app
- * @param manifest
- * @param parameters optional bundle. memory ownership is transferred to App
- * @return
- */
-[[deprecated("use class")]]
-App tt_app_alloc(const Manifest& manifest, const Bundle& parameters);
-[[deprecated("use class")]]
-void tt_app_free(App app);
-
-[[deprecated("use class")]]
-void tt_app_set_state(App app, State state);
-[[deprecated("use class")]]
-State tt_app_get_state(App app);
-
-[[deprecated("use class")]]
-const Manifest& tt_app_get_manifest(App app);
-
-[[deprecated("use class")]]
-Flags tt_app_get_flags(App app);
-[[deprecated("use class")]]
-void tt_app_set_flags(App app, Flags flags);
-
-[[deprecated("use class")]]
-void* _Nullable tt_app_get_data(App app);
-[[deprecated("use class")]]
-void tt_app_set_data(App app, void* data);
-
-[[deprecated("use class")]]
-const Bundle& tt_app_get_parameters(App app);
-
-} // namespace
+}