[node] rendering interface changes

platform/node/src/node_renderer_frontend.cpp

@@ -0,0 +1,50 @@
+#include "node_renderer_frontend.hpp"
+#include <mbgl/renderer/renderer.hpp>
+#include <mbgl/map/backend_scope.hpp>
+
+namespace node_mbgl {
+
+NodeRendererFrontend::NodeRendererFrontend(std::unique_ptr<mbgl::Renderer> renderer_, ViewAccessorFunction getView)
+    : renderer(std::move(renderer_))
+    , asyncInvalidate([&, this, getView] {
+        if (renderer && updateParameters) {
+            renderer->render(*getView(), *updateParameters);
+        }
+    }) {
+}
+
+NodeRendererFrontend::~NodeRendererFrontend() = default;
+    
+void NodeRendererFrontend::reset() {
+    assert(renderer);
+    renderer.reset();
+}
+    
+void NodeRendererFrontend::setObserver(mbgl::RendererObserver& observer_) {
+    assert(renderer);
+    renderer->setObserver(&observer_);
+}
+
+void NodeRendererFrontend::update(std::shared_ptr<mbgl::UpdateParameters> updateParameters_) {
+    updateParameters = updateParameters_;
+    asyncInvalidate.send();
+}
+    
+std::vector<mbgl::Feature> NodeRendererFrontend::queryRenderedFeatures(const mbgl::ScreenBox& box,
+                                                                       const mbgl::RenderedQueryOptions& options) const {
+    assert(renderer);
+    return renderer->queryRenderedFeatures(box, options);
+}
+
+std::vector<mbgl::Feature> NodeRendererFrontend::queryRenderedFeatures(const mbgl::ScreenCoordinate& point,
+                                                                       const mbgl::RenderedQueryOptions& options) const {
+    assert(renderer);
+    return renderer->queryRenderedFeatures(point, options);
+}
+
+void NodeRendererFrontend::dumpDebugLogs() {
+    assert(renderer);
+    return renderer->dumpDebugLogs();
+}
+
+} // namespace node_mbgl