Export default transition delay in Map public API

Added a setter/getter for default transition delay, in the same fashion
as the default transition duration.

Spin-off from #1888. Fixes #302.

2 files changed, 11 insertions, 2 deletions

diff --git a/src/mbgl/map/map.cpp b/src/mbgl/map/map.cpp
index d983a9c518..5b96b83199 100644
--- a/src/mbgl/map/map.cpp
+++ b/src/mbgl/map/map.cpp
@@ -422,13 +422,22 @@ std::vector<std::string> Map::getClasses() const {
 
 void Map::setDefaultTransitionDuration(const Duration& duration) {
     data->setDefaultTransitionDuration(duration);
-    update(Update::DefaultTransitionDuration);
+    update(Update::DefaultTransition);
 }
 
 Duration Map::getDefaultTransitionDuration() const {
     return data->getDefaultTransitionDuration();
 }
 
+void Map::setDefaultTransitionDelay(const Duration& delay) {
+    data->setDefaultTransitionDelay(delay);
+    update(Update::DefaultTransition);
+}
+
+Duration Map::getDefaultTransitionDelay() const {
+    return data->getDefaultTransitionDelay();
+}
+
 void Map::setSourceTileCacheSize(size_t size) {
     context->invoke(&MapContext::setSourceTileCacheSize, size);
 }
diff --git a/src/mbgl/map/map_context.cpp b/src/mbgl/map/map_context.cpp
index 169bd7b9c6..1a03c9330c 100644
--- a/src/mbgl/map/map_context.cpp
+++ b/src/mbgl/map/map_context.cpp
@@ -136,7 +136,7 @@ void MapContext::loadStyleJSON(const std::string& json, const std::string& base)
     // force style cascade, causing all pending transitions to complete.
     style->cascade();
 
-    updated |= static_cast<UpdateType>(Update::DefaultTransitionDuration);
+    updated |= static_cast<UpdateType>(Update::DefaultTransition);
     updated |= static_cast<UpdateType>(Update::Classes);
     updated |= static_cast<UpdateType>(Update::Zoom);
     asyncUpdate->send();