From 9c817b7472cbf441bf75b2ef0ffc3c0ee9c9be8e Mon Sep 17 00:00:00 2001
From: Pavel fljot <pavel.fljot@gmail.com>
Date: Wed, 1 Aug 2012 19:41:58 +0300
Subject: [PATCH] Implement touch cancelation handling

---
 src/org/gestouch/core/GesturesManager.as | 15 +++++++++++-
 src/org/gestouch/gestures/Gesture.as     | 29 ++++++++++++++++++++++++
 2 files changed, 43 insertions(+), 1 deletion(-)

diff --git a/src/org/gestouch/core/GesturesManager.as b/src/org/gestouch/core/GesturesManager.as
index 77b4d96..1820be0 100644
--- a/src/org/gestouch/core/GesturesManager.as
+++ b/src/org/gestouch/core/GesturesManager.as
@@ -313,7 +313,20 @@ package org.gestouch.core
 		
 		gestouch_internal function onTouchCancel(touch:Touch):void
 		{
-			//TODO
+			var gesturesForTouch:Vector.<Gesture> = _gesturesForTouchMap[touch] as Vector.<Gesture>;
+			var gesture:Gesture;
+			var i:uint = gesturesForTouch.length;
+			while (i-- > 0)
+			{
+				gesture = gesturesForTouch[i];
+				
+				if (!_dirtyGesturesMap[gesture] && gesture.isTrackingTouch(touch.id))
+				{
+					gesture.touchCancelHandler(touch);
+				}
+			}
+			
+			gesturesForTouch.length = 0;// release for GC
 		}
 		
 		
diff --git a/src/org/gestouch/gestures/Gesture.as b/src/org/gestouch/gestures/Gesture.as
index 2772cb8..261f440 100644
--- a/src/org/gestouch/gestures/Gesture.as
+++ b/src/org/gestouch/gestures/Gesture.as
@@ -407,6 +407,14 @@ package org.gestouch.gestures
 		}
 		
 		
+		/**
+		 * 
+		 */
+		protected function onTouchCancel(touch:Touch):void
+		{
+		}
+		
+		
 		protected function setState(newState:GestureState):Boolean
 		{
 			if (_state == newState && _state == GestureState.CHANGED)
@@ -576,6 +584,27 @@ package org.gestouch.gestures
 		}
 		
 		
+		gestouch_internal function touchCancelHandler(touch:Touch):void
+		{
+			delete _touchesMap[touch.id];
+			_touchesCount--;
+			
+			onTouchCancel(touch);
+			
+			if (!state.isEndState)
+			{
+				if (state == GestureState.BEGAN || state == GestureState.CHANGED)
+				{
+					setState(GestureState.CANCELLED);
+				}
+				else
+				{
+					setState(GestureState.FAILED);
+				}
+			}
+		}
+		
+		
 		protected function gestureToFail_stateChangeHandler(event:GestureStateEvent):void
 		{
 			if (!_pendingRecognizedState || state != GestureState.POSSIBLE)