Lua API improvements and fixes

Co-authored-by: jacqueline <me@jacqueline.id.au>

2 files changed, 16 insertions, 0 deletions

diff --git a/src/tangara/audio/track_queue.cpp b/src/tangara/audio/track_queue.cpp
index cc4770ae..2c1faf96 100644
--- a/src/tangara/audio/track_queue.cpp
+++ b/src/tangara/audio/track_queue.cpp
@@ -236,6 +236,21 @@ auto TrackQueue::next() -> void {
   next(Reason::kExplicitUpdate);
 }
 
+auto TrackQueue::currentPosition(size_t position) -> bool {
+  {
+    const std::shared_lock<std::shared_mutex> lock(mutex_);
+    if (position >= totalSize()) {
+      return false;
+    }
+    goTo(position);
+  }
+
+  // If we're explicitly setting the position, we want to treat it as though 
+  // the current track has changed, even if the position was the same
+  notifyChanged(true, Reason::kExplicitUpdate);
+  return true;
+}
+
 auto TrackQueue::goTo(size_t position) -> void {
   position_ = position;
   if (opened_playlist_) {
diff --git a/src/tangara/audio/track_queue.hpp b/src/tangara/audio/track_queue.hpp
index 1d25568d..a8d1dc3a 100644
--- a/src/tangara/audio/track_queue.hpp
+++ b/src/tangara/audio/track_queue.hpp
@@ -73,6 +73,7 @@ class TrackQueue {
   auto current() const -> TrackItem;
 
   auto currentPosition() const -> size_t;
+  auto currentPosition(size_t position) -> bool;
   auto totalSize() const -> size_t;
   auto open() -> bool;
   auto openPlaylist(const std::string& playlist_file, bool notify = true)