New cpp folder structure

Signed-off-by: Alexander Borsuk <me@alex.bio>

libs/map/everywhere_search_callback.hpp

@@ -0,0 +1,37 @@
+#pragma once
+
+#include "map/everywhere_search_params.hpp"
+#include "map/search_product_info.hpp"
+
+#include "search/result.hpp"
+
+#include <functional>
+#include <vector>
+
+namespace search
+{
+/// @brief An on-results-callback that should be used for search over all maps.
+/// @note NOT thread safe.
+class EverywhereSearchCallback
+{
+public:
+  class Delegate
+  {
+  public:
+    virtual ~Delegate() = default;
+
+    virtual void RunUITask(std::function<void()> fn) = 0;
+    virtual ProductInfo GetProductInfo(Result const & result) const = 0;
+  };
+
+  using OnResults = EverywhereSearchParams::OnResults;
+  EverywhereSearchCallback(Delegate & delegate, OnResults onResults);
+
+  void operator()(Results const & results);
+
+private:
+  Delegate & m_delegate;
+  OnResults m_onResults;
+  std::vector<ProductInfo> m_productInfo;
+};
+}  // namespace search