1 files changed, 40 insertions, 0 deletions
diff --git a/src/mbgl/style/conversion/transition_options.cpp b/src/mbgl/style/conversion/transition_options.cpp
new file mode 100644
index 0000000000..8a60c5bfd8
--- /dev/null
+++ b/src/mbgl/style/conversion/transition_options.cpp
@@ -0,0 +1,40 @@
+#include <mbgl/style/conversion/transition_options.hpp>
+
+namespace mbgl {
+namespace style {
+namespace conversion {
+
+optional<TransitionOptions> Converter<TransitionOptions>::operator()(const Convertible& value, Error& error) const {
+    if (!isObject(value)) {
+        error = { "transition must be an object" };
+        return {};
+    }
+
+    TransitionOptions result;
+
+    auto duration = objectMember(value, "duration");
+    if (duration) {
+        auto number = toNumber(*duration);
+        if (!number) {
+            error = { "duration must be a number" };
+            return {};
+        }
+        result.duration = { std::chrono::milliseconds(int64_t(*number)) };
+    }
+
+    auto delay = objectMember(value, "delay");
+    if (delay) {
+        auto number = toNumber(*delay);
+        if (!number) {
+            error = { "delay must be a number" };
+            return {};
+        }
+        result.delay = { std::chrono::milliseconds(int64_t(*number)) };
+    }
+
+    return result;
+}
+
+} // namespace conversion
+} // namespace style
+} // namespace mbgl