merge `origin/master` into `master`

1 files changed, 66 insertions, 0 deletions

diff --git a/mwe/events/include/eventManager.h b/mwe/events/include/eventManager.h
new file mode 100644
index 0000000..508a5e2
--- /dev/null
+++ b/mwe/events/include/eventManager.h
@@ -0,0 +1,66 @@
+#pragma once
+#include "event.h"
+#include "eventHandler.h"
+#include "keyCodes.h"
+#include <memory>
+#include <unordered_map>
+#include <vector>
+// using EventType = std::uint32_t;
+// using EventId = std::uint64_t;
+
+class EventManager {
+public:
+	EventManager(const EventManager &) = delete;
+	const EventManager & operator=(const EventManager &) = delete;
+	static EventManager & getInstance() {
+		static EventManager instance;
+		return instance;
+	}
+
+	void shutdown();
+	void subscribe(int eventType,
+				   std::unique_ptr<IEventHandlerWrapper> && handler,
+				   int eventId);
+	void unsubscribe(int eventType, const std::string & handlerName,
+					 int eventId);
+	void triggerEvent(const Event & event_, int eventId);
+	void queueEvent(std::unique_ptr<Event> && event_, int eventId);
+	void dispatchEvents();
+
+private:
+	EventManager() = default;
+	std::vector<std::pair<std::unique_ptr<Event>, int>> eventsQueue;
+	std::unordered_map<int, std::vector<std::unique_ptr<IEventHandlerWrapper>>>
+		subscribers;
+	std::unordered_map<
+		int, std::unordered_map<
+				 int, std::vector<std::unique_ptr<IEventHandlerWrapper>>>>
+		subscribersByEventId;
+};
+
+template <typename EventType>
+inline void subscribe(const EventHandler<EventType> & callback, int eventId = 0,
+					  const bool unsubscribeOnSuccess = false) {
+	std::unique_ptr<IEventHandlerWrapper> handler
+		= std::make_unique<EventHandlerWrapper<EventType>>(
+			callback, unsubscribeOnSuccess);
+	EventManager::getInstance().subscribe(EventType::getStaticEventType(),
+										  std::move(handler), eventId);
+}
+
+template <typename EventType>
+inline void unsubscribe(const EventHandler<EventType> & callback,
+						int eventId = 0) {
+	const std::string handlerName = callback.target_type().name();
+	EventManager::getInstance().unsubscribe(EventType::getStaticEventType(),
+											handlerName, eventId);
+}
+
+inline void triggerEvent(const Event & triggeredEvent, int eventId = 0) {
+	EventManager::getInstance().triggerEvent(triggeredEvent, eventId);
+}
+
+inline void queueEvent(std::unique_ptr<Event> && queuedEvent, int eventId = 0) {
+	EventManager::getInstance().queueEvent(
+		std::forward<std::unique_ptr<Event>>(queuedEvent), eventId);
+}