1 files changed, 24 insertions, 0 deletions
diff --git a/src/mbgl/sprite/sprite_loader_observer.hpp b/src/mbgl/sprite/sprite_loader_observer.hpp
new file mode 100644
index 0000000000..632c48ea56
--- /dev/null
+++ b/src/mbgl/sprite/sprite_loader_observer.hpp
@@ -0,0 +1,24 @@
+#pragma once
+
+#include <exception>
+#include <memory>
+#include <unordered_map>
+#include <string>
+
+namespace mbgl {
+
+namespace style {
+class Image;
+} // namespace style
+
+class SpriteLoaderObserver {
+public:
+    using Images = std::unordered_map<std::string, std::unique_ptr<style::Image>>;
+
+    virtual ~SpriteLoaderObserver() = default;
+
+    virtual void onSpriteLoaded(Images&&) {}
+    virtual void onSpriteError(std::exception_ptr) {}
+};
+
+} // namespace mbgl