[core] Add virtual Source::getZoomRange()

2 files changed, 5 insertions, 1 deletions

diff --git a/src/mbgl/style/sources/geojson_source.cpp b/src/mbgl/style/sources/geojson_source.cpp
index d720e38e51..dbcef95344 100644
--- a/src/mbgl/style/sources/geojson_source.cpp
+++ b/src/mbgl/style/sources/geojson_source.cpp
@@ -53,7 +53,6 @@ std::unique_ptr<GeoJSONSource> GeoJSONSource::parse(const std::string& id,
     } else if (dataVal.IsObject()) {
         // We need to parse dataVal as a GeoJSON object
         geojsonvt = parseGeoJSON(dataVal);
-        tileset->zoomRange.max = geojsonvt->options.maxZoom;
     } else {
         Log::Error(Event::ParseStyle, "GeoJSON data must be a URL or an object");
         return nullptr;
@@ -72,6 +71,10 @@ GeoJSONSource::GeoJSONSource(std::string id_,
 
 GeoJSONSource::~GeoJSONSource() = default;
 
+Range<uint8_t> GeoJSONSource::getZoomRange() {
+    return { 0, geojsonvt->options.maxZoom };
+}
+
 void GeoJSONSource::load(FileSource& fileSource) {
     if (url.empty()) {
         // If the URL is empty, the GeoJSON was specified inline in the stylesheet.
diff --git a/src/mbgl/style/sources/geojson_source.hpp b/src/mbgl/style/sources/geojson_source.hpp
index 08ccf84760..83f5290873 100644
--- a/src/mbgl/style/sources/geojson_source.hpp
+++ b/src/mbgl/style/sources/geojson_source.hpp
@@ -30,6 +30,7 @@ public:
     void load(FileSource&) final;
 
 private:
+    Range<uint8_t> getZoomRange() final;
     std::unique_ptr<Tile> createTile(const OverscaledTileID&, const UpdateParameters&) final;
 
     std::unique_ptr<mapbox::geojsonvt::GeoJSONVT> geojsonvt;