Add option to save replay with controller (double-click share button), allow prime-run on wayland

include/Hotplug.hpp

@@ -0,0 +1,33 @@
+#pragma once
+
+#include <functional>
+
+namespace gsr {
+    enum class HotplugAction {
+        ADD,
+        REMOVE
+    };
+
+    using HotplugEventCallback = std::function<void(HotplugAction hotplug_action, const char *devname)>;
+
+    class Hotplug {
+    public:
+        Hotplug() = default;
+        Hotplug(const Hotplug&) = delete;
+        Hotplug& operator=(const Hotplug&) = delete;
+        ~Hotplug();
+
+        bool start();
+        int steal_fd();
+        void process_event_data(int fd, const HotplugEventCallback &callback);
+    private:
+        void parse_netlink_data(const char *line, const HotplugEventCallback &callback);
+    private:
+        int fd = -1;
+        bool started = false;
+        bool event_is_add = false;
+        bool event_is_remove = false;
+        bool subsystem_is_input = false;
+        char event_data[1024];
+    };
+}