start thinking about pasting files

src/sdl_clipboard_utils.cpp

@@ -0,0 +1,23 @@
+#include "./sdl_clipboard_utils.hpp"
+
+#include <SDL3/SDL.h>
+
+#include <vector>
+
+const char* clipboardHasImage(void) {
+	const static std::vector<const char*> image_mime_types {
+		"image/webp",
+		"image/png",
+		"image/gif",
+		"image/jpeg",
+		"image/bmp",
+	};
+
+	for (const char* mime_type : image_mime_types) {
+		if (SDL_HasClipboardData(mime_type) == SDL_TRUE) {
+			return mime_type;
+		}
+	}
+
+	return nullptr;
+}