Merge pull request #3188 from vishalduggal/event_leak

[TIMOB-11432] Properly retain release target proxies

iphone/Classes/TiBindingEvent.m

@@ -123,7 +123,10 @@ void TiBindingEventFire(TiBindingEvent event)
 
 	int runloopcount = [targetProxy bindingRunLoopCount];
 
-	event->targetProxy = targetProxy;
+	if(event->targetProxy!=targetProxy){
+		[event->targetProxy release];
+		event->targetProxy = [targetProxy retain];
+	}
 	event->pendingEvents = runloopcount;
 	if (runloopcount == 1) { //Main case: One run loop.
 		TiBindingRunLoop ourRunLoop = [targetProxy primaryBindingRunLoop];
@@ -144,7 +147,11 @@ void TiBindingEventFire(TiBindingEvent event)
 	}
 
 	//Extreme edge case. Proxy thinks it still has listeners, but no run loops?!
-	event->targetProxy = TiBindingEventNextBubbleTargetProxy(event, targetProxy, YES);
+	TiProxy * newTarget = TiBindingEventNextBubbleTargetProxy(event, targetProxy, YES);
+	if(event->targetProxy!=newTarget){
+		[event->targetProxy release];
+		event->targetProxy = [newTarget retain];
+	}
 	TiBindingEventFire(event);
 }
 
@@ -221,7 +228,11 @@ void TiBindingEventProcess(TiBindingRunLoop runloop, void * payload)
 	}
 
 	//Last one processing the event for this proxy, pass it on to the parent.
-	event->targetProxy = TiBindingEventNextBubbleTargetProxy(event, event->targetProxy, YES);
+	TiProxy * newTarget = TiBindingEventNextBubbleTargetProxy(event, event->targetProxy, YES);
+	if(event->targetProxy!=newTarget){
+		[event->targetProxy release];
+		event->targetProxy = [newTarget retain];
+	}
 	TiBindingEventFire(event);
 	//See who gets it next.