Starting new VN Structure

src/dawn/state/State.hpp

@@ -44,6 +44,36 @@ namespace Dawn {
     private:
       std::vector<IStateEvent*> eventsSubscribed;
       std::vector<IStateOwnerEventLegacy*> eventLegacyBridge;
+
+    protected:
+      /**
+       * Removes all currently subscribed effects and events.
+       */
+      void unsubscribeAllEvents() {
+        auto providers = this->_stateProviderListeners;
+        auto itProvider = providers.begin();
+        while(itProvider != providers.end()) {
+          (*itProvider)();
+          ++itProvider;
+        }
+
+        auto it = this->eventsSubscribed.begin();
+        while(it != this->eventsSubscribed.end()) {
+          (*it)->_stateOwnerDestroyed(this);
+          ++it;
+        }
+
+        auto itBridge = this->eventLegacyBridge.begin();
+        while(itBridge != this->eventLegacyBridge.end()) {
+          (*itBridge)->removeListener();
+          delete *itBridge;
+          ++itBridge;
+        }
+
+        this->_stateProviderListeners.clear();
+        this->eventsSubscribed.clear();
+        this->eventLegacyBridge.clear();
+      }
   
     public:
       std::vector<std::function<void()>> _stateProviderListeners;
@@ -123,7 +153,11 @@ namespace Dawn {
         auto itProp = props.begin();
         while(itProp != props.end()) {
           auto property = *itProp;
-          if(property->owner == nullptr) { property->owner = this; } else { assertTrue(property->owner == this); }
+          if(property->owner == nullptr) {
+            property->owner = this;
+          } else {
+            assertTrue(property->owner == this);
+          }
           property->_effectListners.push_back(fn);
           ++itProp;
         }
@@ -230,25 +264,7 @@ namespace Dawn {
        * useEffects or useEvents.
        */
       virtual ~StateOwner() {
-        auto providers = this->_stateProviderListeners;
-        auto itProvider = providers.begin();
-        while(itProvider != providers.end()) {
-          (*itProvider)();
-          ++itProvider;
-        }
-
-        auto it = this->eventsSubscribed.begin();
-        while(it != this->eventsSubscribed.end()) {
-          (*it)->_stateOwnerDestroyed(this);
-          ++it;
-        }
-
-        auto itBridge = this->eventLegacyBridge.begin();
-        while(itBridge != this->eventLegacyBridge.end()) {
-          (*itBridge)->removeListener();
-          delete *itBridge;
-          ++itBridge;
-        }
+        this->unsubscribeAllEvents();
       }
   };
 }