HotkeyManager, EventListenedr and IO refactor

Author: half-arch

src/core/CallbackTypes.hpp

@@ -1,4 +1,5 @@
 #pragma once
+#include <linux/input.h>
 #include <functional>
 #include <string>
 
@@ -7,4 +8,28 @@ namespace havel {
 // Callback types for IO and EventListener
 using AnyKeyPressCallback = std::function<void(const std::string& key)>;
 
-} // namespace havel
+enum class InputEventKind {
+  Key,
+  MouseButton,
+  MouseMove,
+  MouseWheel,
+  Absolute
+};
+
+struct InputEvent {
+  InputEventKind kind;
+  int code = 0;
+  int value = 0;
+  bool down = false;
+  bool repeat = false;
+  int modifiers = 0;
+  int originalCode = 0;
+  int mappedCode = 0;
+  int dx = 0;
+  int dy = 0;
+  std::string keyName;
+};
+
+using InputEventCallback = std::function<void(const InputEvent&)>;
+
+} // namespace havel