[dispatcher] Adding (s|g)etCurrentTarget for Event.

cocos2dx/event_dispatcher/CCEvent.cpp

@@ -29,6 +29,7 @@ NS_CC_BEGIN
 Event::Event(const std::string& type)
 : _type(type)
 , _isStopped(false)
+, _currentTarget(nullptr)
 {
 }
 
@@ -36,5 +37,14 @@ Event::~Event()
 {
 }
 
+Node* Event::getCurrentTarget()
+{
+    return _currentTarget;
+}
+
+void Event::setCurrentTarget(Node* target)
+{
+    _currentTarget = target;
+}
 
 NS_CC_END

cocos2dx/event_dispatcher/CCEvent.h

@@ -33,6 +33,8 @@
 
 NS_CC_BEGIN
 
+class Node;
+
 class Event
 {
 public:
@@ -42,10 +44,13 @@ public:
 	const std::string& getType() const { return _type; };
     void stopPropagation() { _isStopped = true; };
     bool isStopped() const { return _isStopped; };
-
+    Node* getCurrentTarget();
+    
 protected:
+    void setCurrentTarget(Node* target);
 	std::string _type;
     bool _isStopped;
+    Node* _currentTarget;
     
     friend class EventDispatcher;
 };