Implement menu navigation and input handling in TUI

src/cli/tui.cc

@@ -1,29 +1,69 @@
 #include "tui.h"
 
 #include <ftxui/component/component.hpp>
+#include <ftxui/component/screen_interactive.hpp>
 #include <ftxui/dom/elements.hpp>
 #include <ftxui/screen/screen.hpp>
 
 namespace yaze {
 namespace cli {
-namespace tui {
+
+namespace {
+bool HandleInput(ftxui::Event &event, int &selected) {
+  using namespace ftxui;
+  if (event == Event::ArrowDown || event == Event::Character('j')) {
+    selected++;
+    return true;
+  }
+  if (event == Event::ArrowUp || event == Event::Character('k')) {
+    if (selected != 0) selected--;
+    return true;
+  }
+  return false;
+}
+}  // namespace
 
 void ShowMain() {
   using namespace ftxui;
+  Context context;
+
+  std::vector<std::string> entries = {
+      "Palette Editor", "Tile Editor", "Sprite Editor", "Map Editor", "Exit",
+  };
+  int selected = 0;
+
+  MenuOption option;
+  auto menu = Menu(&entries, &selected, option);
 
   Element main_document = gridbox({
       {text("z3ed: The Legend of Zelda: A Link to the Past") | bold | flex},
-      {text("left") | border, text("middle") | border | flex},
-      {text("left") | border, text("middle") | border | flex},
+      {menu->Render() | border | flex},
   });
 
-  auto screen = Screen::Create(Dimension::Full(),       // Width
-                               Dimension::Fit(main_document) // Height
-  );
-  Render(screen, main_document);
-  screen.Print();
+  auto main_component = Renderer([&] { return main_document; });
+  auto screen = ScreenInteractive::TerminalOutput();
+
+  // Exit the loop when "Exit" is selected
+  main_component = CatchEvent(main_component, [&](Event event) {
+    if (event == Event::Return && selected == 4) {
+      screen.ExitLoopClosure()();
+      return true;
+    }
+    if (event == Event::Character('q')) {
+      screen.ExitLoopClosure()();
+      return true;
+    }
+    return HandleInput(event, selected);
+  });
+
+  screen.Loop(main_component);
 }
 
-} // namespace tui
-} // namespace cli
-} // namespace yaze
+void DrawPaletteEditor(Rom *rom) {
+  using namespace ftxui;
+
+  auto palette_groups = rom->palette_group();
+}
+
+}  // namespace cli
+}  // namespace yaze