add error handling to ui

1 files changed, 27 insertions, 0 deletions

diff --git a/lib/nes/app/ui/screen-error.hh b/lib/nes/app/ui/screen-error.hh
new file mode 100644
index 0000000..ec877e1
--- /dev/null
+++ b/lib/nes/app/ui/screen-error.hh
@@ -0,0 +1,27 @@
+#pragma once
+
+#include "nes/app/ui/screen.hh"
+
+namespace nes::app
+{
+	class input_device_keyboard;
+
+	/// An error popup.
+	class screen_error final : public screen
+	{
+		input_device_keyboard& keyboard_;
+		std::string_view message_;
+		status error_{ status::success };
+
+	public:
+		explicit screen_error(input_device_keyboard&);
+
+		auto get_message() const -> std::string_view { return message_; }
+		auto get_error() const -> status { return error_; }
+		auto set_message(std::string_view const v) { message_ = v; }
+		auto set_error(status const v) { error_ = v; }
+
+		auto render(renderer&) -> void override;
+		auto process_events() -> action override;
+	};
+} // namespace nes::app
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