From b765eba46a42275059eac6cb0e4372c3908fdd0a Mon Sep 17 00:00:00 2001
From: Pavel fljot <pavel.fljot@gmail.com>
Date: Thu, 5 May 2011 19:14:49 +0300
Subject: [PATCH] Added GestureTrackingEvent (GESTURE_TRACKING_BEGIN,
 GESTURE_TRACKING_END), made Gesture extend EventDispatcher (and IGesture
 extend IEventDispatcher)

---
 src/org/gestouch/core/GesturesManager.as      |  2 +-
 src/org/gestouch/core/IGesture.as             |  3 +-
 .../gestouch/events/GestureTrackingEvent.as   | 32 +++++++++++++++++++
 src/org/gestouch/gestures/Gesture.as          | 26 +++++++++++++--
 4 files changed, 58 insertions(+), 5 deletions(-)
 create mode 100644 src/org/gestouch/events/GestureTrackingEvent.as

diff --git a/src/org/gestouch/core/GesturesManager.as b/src/org/gestouch/core/GesturesManager.as
index e199480..4af5972 100644
--- a/src/org/gestouch/core/GesturesManager.as
+++ b/src/org/gestouch/core/GesturesManager.as
@@ -85,7 +85,7 @@ package org.gestouch.core
 			_stage.addEventListener(MouseEvent.MOUSE_DOWN, stage_mouseDownHandler);
 			_stage.addEventListener(TouchEvent.TOUCH_BEGIN, stage_touchBeginHandler);
 			_stage.addEventListener(TouchEvent.TOUCH_MOVE, stage_touchMoveHandler);
-			_stage.addEventListener(TouchEvent.TOUCH_END, stage_touchEndHandler);
+			_stage.addEventListener(TouchEvent.TOUCH_END, stage_touchEndHandler, true);
 		}
 		
 		
diff --git a/src/org/gestouch/core/IGesture.as b/src/org/gestouch/core/IGesture.as
index 6ba69a4..ed4e84b 100644
--- a/src/org/gestouch/core/IGesture.as
+++ b/src/org/gestouch/core/IGesture.as
@@ -1,12 +1,13 @@
 package org.gestouch.core
 {
+	import flash.events.IEventDispatcher;
 	import flash.display.InteractiveObject;
 	import flash.events.TouchEvent;
 
 	/**
 	 * @author Pavel fljot
 	 */
-	public interface IGesture
+	public interface IGesture extends IEventDispatcher
 	{
 		function get target():InteractiveObject;
 		function get trackingPoints():Vector.<TouchPoint>;
diff --git a/src/org/gestouch/events/GestureTrackingEvent.as b/src/org/gestouch/events/GestureTrackingEvent.as
new file mode 100644
index 0000000..a8b43ff
--- /dev/null
+++ b/src/org/gestouch/events/GestureTrackingEvent.as
@@ -0,0 +1,32 @@
+package org.gestouch.events
+{
+	import flash.events.Event;
+
+
+	/**
+	 * @author Pavel fljot
+	 */
+	public class GestureTrackingEvent extends Event
+	{
+		public static const GESTURE_TRACKING_BEGIN:String = "gestureTrackingBegin";
+		public static const GESTURE_TRACKING_END:String = "gestureTrackingEnd";
+		
+		
+		public function GestureTrackingEvent(type:String, bubbles:Boolean = false, cancelable:Boolean = false)
+		{
+			super(type, bubbles, cancelable);
+		}
+		
+		
+		override public function clone():Event
+		{
+			return new GestureTrackingEvent(type, bubbles, cancelable);
+		}
+		
+		
+		override public function toString():String
+		{
+			return formatToString("GestureTrackingEvent", "type", "bubbles", "cancelable", "eventPhase");
+		}
+	}
+}
\ No newline at end of file
diff --git a/src/org/gestouch/gestures/Gesture.as b/src/org/gestouch/gestures/Gesture.as
index 66e6cfc..5099a5b 100644
--- a/src/org/gestouch/gestures/Gesture.as
+++ b/src/org/gestouch/gestures/Gesture.as
@@ -1,5 +1,7 @@
 package org.gestouch.gestures
 {
+	import org.gestouch.events.GestureTrackingEvent;
+	import flash.events.EventDispatcher;
 	import flash.errors.IllegalOperationError;
 	import flash.display.InteractiveObject;
 	import flash.events.GestureEvent;
@@ -11,15 +13,17 @@ package org.gestouch.gestures
 	import org.gestouch.core.IGesture;
 	import org.gestouch.core.TouchPoint;
 	import org.gestouch.core.gestouch_internal;
-
-
+	
+	
+	[Event(name="gestureTrackingBegin", type="org.gestouch.events.GestureTrackingEvent")]
+	[Event(name="gestureTrackingEnd", type="org.gestouch.events.GestureTrackingEvent")]
 	/**
 	 * Base class for all gestures. Gesture is essentially a detector that tracks touch points
 	 * in order detect specific gesture motion and form gesture event on target.
 	 * 
 	 * @author Pavel fljot
 	 */
-	public class Gesture implements IGesture
+	public class Gesture extends EventDispatcher implements IGesture
 	{
 		/**
 		 * Threshold for screen distance they must move to count as valid input 
@@ -448,6 +452,14 @@ _propertyNames.push("timeThreshold", "moveThreshold");
 			{
 				_adjustCentralPoint();
 			}
+			
+			if (_trackingPointsCount == minTouchPointsCount)
+			{
+				if (hasEventListener(GestureTrackingEvent.GESTURE_TRACKING_BEGIN))
+				{
+					dispatchEvent(new GestureTrackingEvent(GestureTrackingEvent.GESTURE_TRACKING_BEGIN));
+				}
+			}
 		}
 		
 		
@@ -467,6 +479,14 @@ _propertyNames.push("timeThreshold", "moveThreshold");
 			_trackingPointsCount--;
 			
 			_adjustCentralPoint();
+			
+			if (_trackingPointsCount == minTouchPointsCount + 1)
+			{
+				if (hasEventListener(GestureTrackingEvent.GESTURE_TRACKING_END))
+				{
+					dispatchEvent(new GestureTrackingEvent(GestureTrackingEvent.GESTURE_TRACKING_END));
+				}
+			}
 		}