From 2c0c5163546d81d25cf2c5755c8d7c6005953d30 Mon Sep 17 00:00:00 2001
From: Ivo van Dongen <info@ivovandongen.nl>
Date: Fri, 27 Oct 2017 20:05:45 +0300
Subject: [core] map snapshotter - add attributions to snapshotter callback

---
 platform/default/mbgl/map/map_snapshotter.cpp | 11 +++++++++++
 platform/default/mbgl/map/map_snapshotter.hpp |  4 +++-
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/platform/default/mbgl/map/map_snapshotter.cpp b/platform/default/mbgl/map/map_snapshotter.cpp
index 3e930c31f1..7b4ec5913b 100644
--- a/platform/default/mbgl/map/map_snapshotter.cpp
+++ b/platform/default/mbgl/map/map_snapshotter.cpp
@@ -76,10 +76,21 @@ void MapSnapshotter::Impl::snapshot(ActorRef<MapSnapshotter::Callback> callback)
             return transform.latLngToScreenCoordinate(unwrappedLatLng);
         }};
 
+        // Collect all source attributions
+        std::vector<std::string> attributions;
+        for (auto source : map.getStyle().getSources()) {
+            auto attribution = source->getAttribution();
+            if (attribution) {
+                attributions.push_back(*attribution);
+            }
+        }
+
+        // Invoke callback
         callback.invoke(
                 &MapSnapshotter::Callback::operator(),
                 error,
                 error ? PremultipliedImage() : frontend.readStillImage(),
+                std::move(attributions),
                 std::move(pointForFn)
         );
     });
diff --git a/platform/default/mbgl/map/map_snapshotter.hpp b/platform/default/mbgl/map/map_snapshotter.hpp
index b3cfb3058f..985396e5a3 100644
--- a/platform/default/mbgl/map/map_snapshotter.hpp
+++ b/platform/default/mbgl/map/map_snapshotter.hpp
@@ -8,6 +8,7 @@
 #include <exception>
 #include <memory>
 #include <string>
+#include <vector>
 #include <functional>
 
 namespace mbgl {
@@ -48,7 +49,8 @@ public:
     LatLngBounds getRegion() const;
 
     using PointForFn = std::function<ScreenCoordinate (const LatLng&)>;
-    using Callback = std::function<void (std::exception_ptr, PremultipliedImage, PointForFn)>;
+    using Attributions = std::vector<std::string>;
+    using Callback = std::function<void (std::exception_ptr, PremultipliedImage, Attributions, PointForFn)>;
     void snapshot(ActorRef<Callback>);
 
 private:
-- 
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