Skeleton MessageRelay

src/GUI/Frame.h

@@ -0,0 +1,14 @@
+#ifndef GUI_Frame_h__
+#define GUI_Frame_h__
+
+namespace GUI
+{
+	
+class Frame
+{
+
+};
+
+}
+
+#endif // GUI_Frame_h__

src/MessageRelay.h

@@ -0,0 +1,43 @@
+#ifndef MessageRelay_h__
+#define MessageRelay_h__
+
+#include <functional>
+#include <unordered_map>
+#include <list>
+
+struct Message
+{
+protected:
+	Message() { }
+};
+
+class MessageRelay
+{
+private:
+	typedef std::string MessageType_t;
+	typedef std::function<bool(Message)> MessageCallback_t;
+
+public:
+	void Subscribe(std::string messageType, MessageCallback_t callback)
+	{
+		m_Callbacks[messageType].push_back(callback);
+	}
+
+	void Raise(std::string messageType, Message message)
+	{
+		auto callbackIt = m_Callbacks.find(messageType);
+		if (callbackIt == m_Callbacks.end())
+			return;
+
+		for (auto &callback : callbackIt->second)
+		{
+			callback(message);
+		}
+	}
+
+private:
+	std::unordered_map<MessageType_t, std::list<MessageCallback_t>> m_Callbacks;
+
+};
+
+#endif // MessageRelay_h__