Rhythm Selection & Cleanup

include/vamp_pico/input.hpp

@@ -14,11 +14,13 @@ enum class request_kind {
   DISPLAY,
   COMMAND,
   HEARTBEAT,
+  TITLE,
 };
 
 struct remote_request {
   request_kind kind{request_kind::DISPLAY};
   vamp_protocol::page_command command{vamp_protocol::page_command::NEXT};
+  std::array<std::char_t, vamp_protocol::title_id_size + 1U> title_id{};
 };
 
 enum class enqueue_result {
@@ -33,6 +35,8 @@ public:
   auto next(std::uint64_t now_ms) -> std::optional<remote_request>;
   auto complete(std::uint64_t now_ms) -> void;
   auto queued() const -> std::size_t;
+  auto want_title(std::string_view identifier) -> void;
+  auto cancel_title() -> void;
 private:
   std::array<vamp_protocol::page_command, command_capacity> commands_{};
   std::size_t head_{};
@@ -40,6 +44,9 @@ private:
   std::bool_t in_flight_{};
   std::bool_t completed_{};
   std::uint64_t completed_ms_{};
+  std::array<std::char_t, vamp_protocol::title_id_size + 1U> title_id_{};
+  std::bool_t title_pending_{};
+  request_kind active_kind_{request_kind::DISPLAY};
 };
 
 }