WIP merge cyclically dependent components into one big component

1 files changed, 40 insertions, 0 deletions

diff --git a/src/tangara/ui/screen_lua.hpp b/src/tangara/ui/screen_lua.hpp
new file mode 100644
index 00000000..8a463bad
--- /dev/null
+++ b/src/tangara/ui/screen_lua.hpp
@@ -0,0 +1,40 @@
+/*
+ * Copyright 2023 jacqueline <me@jacqueline.id.au>
+ *
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+
+#pragma once
+
+#include "lua.hpp"
+
+#include "property.hpp"
+#include "screen.hpp"
+
+namespace ui {
+namespace screens {
+
+class Lua : public Screen {
+ public:
+  Lua();
+  ~Lua();
+
+  auto onShown() -> void override;
+  auto onHidden() -> void override;
+
+  auto canPop() -> bool override;
+
+  auto SetObjRef(lua_State*) -> void;
+
+ private:
+  /* Invokes a method on this screen's Lua counterpart. */
+  auto callMethod(std::string name) -> void;
+  /* Applies fn to each binding in this screen's `bindings` field. */
+  auto forEachBinding(std::function<void(lua::Binding*)> fn) -> void;
+
+  lua_State* s_;
+  std::optional<int> obj_ref_;
+};
+
+}  // namespace screens
+}  // namespace ui