[core] Obey "transition" property from style and its default value

1 files changed, 15 insertions, 0 deletions

diff --git a/src/mbgl/style/parser.cpp b/src/mbgl/style/parser.cpp
index 725feb3fc2..467b44632c 100644
--- a/src/mbgl/style/parser.cpp
+++ b/src/mbgl/style/parser.cpp
@@ -86,6 +86,10 @@ StyleParseResult Parser::parse(const std::string& json) {
         }
     }
 
+    if (document.HasMember("transition")) {
+        parseTransition(document["transition"]);
+    }
+
     if (document.HasMember("light")) {
         parseLight(document["light"]);
     }
@@ -115,6 +119,17 @@ StyleParseResult Parser::parse(const std::string& json) {
     return nullptr;
 }
 
+void Parser::parseTransition(const JSValue& value) {
+    conversion::Error error;
+    optional<TransitionOptions> converted = conversion::convert<TransitionOptions>(value, error);
+    if (!converted) {
+        Log::Warning(Event::ParseStyle, error.message);
+        return;
+    }
+
+    transition = std::move(*converted);
+}
+
 void Parser::parseLight(const JSValue& value) {
     conversion::Error error;
     optional<Light> converted = conversion::convert<Light>(value, error);