[core] Ensure 'isPanning' is true when panning a full round

2 files changed, 18 insertions, 1 deletions

diff --git a/src/mbgl/map/transform.cpp b/src/mbgl/map/transform.cpp
index 5854eaea37..7d3c9d8b74 100644
--- a/src/mbgl/map/transform.cpp
+++ b/src/mbgl/map/transform.cpp
@@ -124,7 +124,7 @@ void Transform::easeTo(const CameraOptions& camera, const AnimationOptions& anim
     const double startScale = state.scale;
     const double startAngle = state.angle;
     const double startPitch = state.pitch;
-    state.panning = latLng != startLatLng;
+    state.panning = unwrappedLatLng != startLatLng;
     state.scaling = scale != startScale;
     state.rotating = angle != startAngle;
 
diff --git a/test/map/transform.test.cpp b/test/map/transform.test.cpp
index eb511a82da..7e98863400 100644
--- a/test/map/transform.test.cpp
+++ b/test/map/transform.test.cpp
@@ -468,6 +468,23 @@ TEST(Transform, Camera) {
     ASSERT_DOUBLE_EQ(transform.getLatLng().longitude(), 0);
 }
 
+TEST(Transform, IsPanning)
+{
+    Transform transform;
+
+    AnimationOptions easeOptions(Seconds(1));
+    easeOptions.transitionFrameFn = [&transform](double) {
+        ASSERT_TRUE(transform.getState().isPanning());
+    };
+
+    transform.resize({ 1000, 1000 });
+    transform.easeTo(CameraOptions().withCenter(LatLng(0, 360.0)), easeOptions);
+    transform.updateTransitions(transform.getTransitionStart() + Milliseconds(250));
+    transform.updateTransitions(transform.getTransitionStart() + Milliseconds(500));
+    transform.updateTransitions(transform.getTransitionStart() + Milliseconds(750));
+    transform.updateTransitions(transform.getTransitionStart() + transform.getTransitionDuration());
+}
+
 TEST(Transform, DefaultTransform) {
     struct TransformObserver : public mbgl::MapObserver {
         void onCameraWillChange(MapObserver::CameraChangeMode) final {