add sdl implementation

1 files changed, 30 insertions, 0 deletions

diff --git a/app/sdl/impl/file-browser-posix.hh b/app/sdl/impl/file-browser-posix.hh
new file mode 100644
index 0000000..8d56575
--- /dev/null
+++ b/app/sdl/impl/file-browser-posix.hh
@@ -0,0 +1,30 @@
+#pragma once
+
+#include "nes/app/file-browser.hh"
+#include "nes/common/containers/path-builder.hh"
+#include <dirent.h>
+
+namespace nes::app::sdl
+{
+	/// File browser implementation using the POSIX directory API.
+	class file_browser_posix final : public file_browser
+	{
+        path_buffer<1024> path_;
+		DIR* it_{ nullptr };
+		u32 it_pos_{ 0 };
+
+	public:
+		explicit file_browser_posix();
+		~file_browser_posix() override;
+
+		auto get_path() const -> path_view override { return path_.get_components(); }
+		auto seek(u32) -> void override;
+		auto read_next(entry* out_entry) -> bool override;
+		auto navigate_up() -> status override;
+		auto navigate(string_view) -> status override;
+		auto load(string_view, span<u8>, u32* out_length) -> status override;
+
+	private:
+		auto reopen_directory(string_view path) -> status;
+	};
+} // namespace nes::app::sdl