Add AnyMap.

1 files changed, 33 insertions, 0 deletions

diff --git a/src/any_map.cpp b/src/any_map.cpp
new file mode 100644
index 00000000..6f9ada66
--- /dev/null
+++ b/src/any_map.cpp
@@ -0,0 +1,33 @@
+#include "any_map.h"
+
+namespace cru
+{
+    AnyMap::ListenerToken AnyMap::RegisterValueChangeListener(const String& key, const Listener& listener)
+    {
+        const auto token = current_listener_token_++;
+        map_[key].second.push_back(token);
+        listeners_.emplace(token, listener);
+        return token;
+    }
+
+    void AnyMap::UnregisterValueChangeListener(const ListenerToken token)
+    {
+        const auto find_result = listeners_.find(token);
+        if (find_result != listeners_.cend())
+            listeners_.erase(find_result);
+    }
+
+    void AnyMap::InvokeListeners(std::list<ListenerToken>& listener_list, const std::any& value)
+    {
+        auto i = listener_list.cbegin();
+        while (i != listener_list.cend())
+        {
+            auto current_i = i++;
+            const auto find_result = listeners_.find(*current_i);
+            if (find_result != listeners_.cend())
+                find_result->second(value);
+            else
+                listener_list.erase(current_i); // otherwise remove the invalid listener token.
+        }
+    }
+}