1 files changed, 57 insertions, 0 deletions
diff --git a/platform/android/src/style/layers/custom_layer.cpp b/platform/android/src/style/layers/custom_layer.cpp
new file mode 100644
index 0000000000..4be6f3800d
--- /dev/null
+++ b/platform/android/src/style/layers/custom_layer.cpp
@@ -0,0 +1,57 @@
+#include "custom_layer.hpp"
+
+#include <string>
+
+#include <mbgl/platform/log.hpp>
+
+namespace mbgl {
+namespace android {
+
+    CustomLayer::CustomLayer(jni::JNIEnv& env, jni::String layerId, jni::jlong initializeFunction, jni::jlong renderFunction, jni::jlong deinitializeFunction, jni::jlong context)
+        : Layer(env, std::make_unique<mbgl::style::CustomLayer>(
+                jni::Make<std::string>(env, layerId),
+                reinterpret_cast<mbgl::style::CustomLayerInitializeFunction>(initializeFunction),
+                reinterpret_cast<mbgl::style::CustomLayerRenderFunction>(renderFunction),
+                reinterpret_cast<mbgl::style::CustomLayerDeinitializeFunction>(deinitializeFunction),
+                reinterpret_cast<void*>(context))
+                ) {
+    }
+
+    CustomLayer::CustomLayer(mbgl::Map& map, mbgl::style::CustomLayer& coreLayer)
+        : Layer(map, coreLayer) {
+    }
+
+    CustomLayer::~CustomLayer() = default;
+
+    void CustomLayer::update(jni::JNIEnv&) {
+        if (map) {
+            map->update(mbgl::Update::Repaint);
+        } else {
+            Log::Error(mbgl::Event::JNI, "No map reference, cannot update");
+        }
+    }
+
+    jni::Class<CustomLayer> CustomLayer::javaClass;
+
+    jni::jobject* CustomLayer::createJavaPeer(jni::JNIEnv& env) {
+        static auto constructor = CustomLayer::javaClass.template GetConstructor<jni::jlong>(env);
+        return CustomLayer::javaClass.New(env, constructor, reinterpret_cast<jni::jlong>(this));
+    }
+
+    void CustomLayer::registerNative(jni::JNIEnv& env) {
+        //Lookup the class
+        CustomLayer::javaClass = *jni::Class<CustomLayer>::Find(env).NewGlobalRef(env).release();
+
+        #define METHOD(MethodPtr, name) jni::MakeNativePeerMethod<decltype(MethodPtr), (MethodPtr)>(name)
+
+        //Register the peer
+        jni::RegisterNativePeer<CustomLayer>(
+            env, CustomLayer::javaClass, "nativePtr",
+            std::make_unique<CustomLayer, JNIEnv&, jni::String, jni::jlong, jni::jlong, jni::jlong, jni::jlong>,
+            "initialize",
+            "finalize",
+            METHOD(&CustomLayer::update, "nativeUpdate"));
+    }
+
+} // namespace android
+} // namespace mbgl