1 files changed, 18 insertions, 0 deletions
diff --git a/src/mbgl/tile/tile_data_observer.hpp b/src/mbgl/tile/tile_data_observer.hpp
new file mode 100644
index 0000000000..ce24609890
--- /dev/null
+++ b/src/mbgl/tile/tile_data_observer.hpp
@@ -0,0 +1,18 @@
+#pragma once
+
+#include <exception>
+
+namespace mbgl {
+
+class TileData;
+
+class TileDataObserver {
+public:
+    virtual ~TileDataObserver() = default;
+
+    virtual void onTileLoaded(TileData&, bool /*isNewTile*/) {}
+    virtual void onTileError(TileData&, std::exception_ptr) {}
+    virtual void onPlacementRedone(TileData&) {}
+};
+
+} // namespace mbgl