Keep keyboard led when turning on global hotkeys, move files

include/GlobalHotkeys/GlobalHotkeys.hpp

@@ -0,0 +1,45 @@
+#pragma once
+
+#include <stdint.h>
+#include <functional>
+#include <string>
+
+namespace mgl {
+    class Event;
+}
+
+namespace gsr {
+    enum HotkeyModifier : uint32_t {
+        HOTKEY_MOD_LSHIFT = 1 << 0,
+        HOTKEY_MOD_RSHIFT = 1 << 1,
+        HOTKEY_MOD_LCTRL  = 1 << 2,
+        HOTKEY_MOD_RCTRL  = 1 << 3,
+        HOTKEY_MOD_LALT   = 1 << 4,
+        HOTKEY_MOD_RALT   = 1 << 5,
+        HOTKEY_MOD_LSUPER = 1 << 6,
+        HOTKEY_MOD_RSUPER = 1 << 7
+    };
+
+    struct Hotkey {
+        uint32_t key = 0;       // X11 keysym
+        uint32_t modifiers = 0; // HotkeyModifier
+    };
+
+    using GlobalHotkeyCallback = std::function<void(const std::string &id)>;
+
+    class GlobalHotkeys {
+    public:
+        GlobalHotkeys() = default;
+        GlobalHotkeys(const GlobalHotkeys&) = delete;
+        GlobalHotkeys& operator=(const GlobalHotkeys&) = delete;
+        virtual ~GlobalHotkeys() = default;
+
+        virtual bool bind_key_press(Hotkey hotkey, const std::string &id, GlobalHotkeyCallback callback) { (void)hotkey; (void)id; (void)callback; return false; }
+        virtual void unbind_key_press(const std::string &id) { (void)id; }
+        virtual void unbind_all_keys() {}
+        virtual bool bind_action(const std::string &id, GlobalHotkeyCallback callback) { (void)id; (void)callback; return false; };
+        virtual void poll_events() = 0;
+        // Returns true if the event wasn't consumed (if the event didn't match a key that has been bound)
+        virtual bool on_event(mgl::Event &event) { (void)event; return true; }
+    };
+}