Implemented SDL event listener class

UnleashedRecomp/CMakeLists.txt

@@ -59,6 +59,7 @@ set(SWA_HID_CXX_SOURCES
 )
 
 set(SWA_PATCHES_CXX_SOURCES
+    "patches/ui/frontend_listener.cpp"
     "patches/fps_patches.cpp"
     "patches/misc_patches.cpp"
     "patches/object_patches.cpp"

UnleashedRecomp/patches/ui/frontend_listener.cpp

@@ -0,0 +1,3 @@
+#include "frontend_listener.h"
+
+FrontendListener m_frontendListener;

UnleashedRecomp/patches/ui/frontend_listener.h

@@ -0,0 +1,24 @@
+#pragma once
+
+#include "ui/window_listener.h"
+
+class FrontendListener : public WindowListener
+{
+private:
+    bool m_isF8KeyDown = false;
+
+public:
+    void OnKeyDown(SDL_Keycode key) override
+    {
+        if (key == SDLK_F8 && !m_isF8KeyDown)
+        {
+            printf("F8 pressed!\n");
+            m_isF8KeyDown = true;
+        }
+    }
+
+    void OnKeyUp(SDL_Keycode key) override
+    {
+        m_isF8KeyDown = key != SDLK_F8;
+    }
+};

UnleashedRecomp/ui/window.cpp

@@ -1,4 +1,5 @@
 #include "window.h"
+#include "window_listener.h"
 #include <config.h>
 #include <kernel/function.h>
 #include <SDL_syswm.h>
@@ -56,6 +57,9 @@ int Window_OnSDLEvent(void*, SDL_Event* event)
                 }
             }
 
+            for (auto listener : Window::s_listeners)
+                listener->OnKeyDown(event->key.keysym.sym);
+
             break;
         }
 
@@ -68,6 +72,9 @@ int Window_OnSDLEvent(void*, SDL_Event* event)
                     m_isFullscreenKeyReleased = true;
                     break;
             }
+
+            for (auto listener : Window::s_listeners)
+                listener->OnKeyUp(event->key.keysym.sym);
         }
 
         case SDL_WINDOWEVENT:
@@ -107,6 +114,9 @@ int Window_OnSDLEvent(void*, SDL_Event* event)
         }
     }
 
+    for (auto listener : Window::s_listeners)
+        listener->OnSDLEvent(event);
+
     return 0;
 }
 

UnleashedRecomp/ui/window.h

@@ -7,7 +7,9 @@
 #define DEFAULT_WIDTH 1280
 #define DEFAULT_HEIGHT 720
 
-struct Window
+class WindowListener;
+
+class Window
 {
 public:
     inline static SDL_Window* s_pWindow;
@@ -20,6 +22,8 @@ public:
 
     inline static bool s_isFocused;
 
+    inline static std::vector<std::shared_ptr<WindowListener>> s_listeners;
+
     static SDL_Surface* GetIconSurface(void* pIconBmp = nullptr, size_t iconSize = 0)
     {
         auto rw = SDL_RWFromMem(pIconBmp ? pIconBmp : (void*)g_icon, pIconBmp ? iconSize : g_icon_size);

UnleashedRecomp/ui/window_listener.h

@@ -0,0 +1,25 @@
+#pragma once
+
+#include "ui/window.h"
+
+class IWindowListener
+{
+public:
+    virtual ~IWindowListener() = default;
+    virtual void OnSDLEvent(SDL_Event* event) = 0;
+    virtual void OnKeyDown(SDL_Keycode key) = 0;
+    virtual void OnKeyUp(SDL_Keycode key) = 0;
+};
+
+class WindowListener : public IWindowListener
+{
+public:
+    WindowListener()
+    {
+        Window::s_listeners.emplace_back(this);
+    }
+
+    void OnSDLEvent(SDL_Event* event) override {}
+    void OnKeyDown(SDL_Keycode key) override {}
+    void OnKeyUp(SDL_Keycode key) override {}
+};