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Gesture#shouldTrackTouchPoint() is no more abstract method but rather has some default functionality.

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Since most of the gestures requires touch point (on touch begin) to be on top of the target, this common logic moved to base class Gesture.
This commit is contained in:
Pavel fljot 2011-07-04 13:37:46 +03:00
parent c3d637b4a7
commit d65cf3ac90
7 changed files with 48 additions and 157 deletions

31
src/org/gestouch/gestures/DoubleTapGesture.as
View file

@ -1,17 +1,16 @@
package org.gestouch.gestures
{
import flash.display.DisplayObjectContainer;
import flash.display.InteractiveObject;
import flash.events.GesturePhase;
import flash.events.TimerEvent;
import flash.events.TouchEvent;
import flash.geom.Point;
import flash.utils.Timer;
import org.gestouch.core.GesturesManager;
import org.gestouch.core.TouchPoint;
import org.gestouch.core.gestouch_internal;
import org.gestouch.events.DoubleTapGestureEvent;
import flash.display.InteractiveObject;
import flash.events.GesturePhase;
import flash.events.TimerEvent;
import flash.geom.Point;
import flash.utils.Timer;
@ -110,24 +109,6 @@ package org.gestouch.gestures
}
override public function shouldTrackPoint(event:TouchEvent, touchPoint:TouchPoint):Boolean
{
// No need to track more points than we need
if (_trackingPointsCount == maxTouchPointsCount)
{
return false;
}
// this particular gesture is interested only in those touchpoints on top of target
var touchTarget:InteractiveObject = event.target as InteractiveObject;
if (touchTarget != target && !(target is DisplayObjectContainer && (target as DisplayObjectContainer).contains(touchTarget)))
{
return false;
}
return true;
}
override public function onTouchBegin(touchPoint:TouchPoint):void
{
// No need to track more points than we need

20
src/org/gestouch/gestures/DragGesture.as
View file

@ -5,10 +5,8 @@ package org.gestouch.gestures
import org.gestouch.core.gestouch_internal;
import org.gestouch.events.DragGestureEvent;
import flash.display.DisplayObjectContainer;
import flash.display.InteractiveObject;
import flash.events.GesturePhase;
import flash.events.TouchEvent;
import flash.geom.Point;
@ -67,24 +65,6 @@ package org.gestouch.gestures
}
override public function shouldTrackPoint(event:TouchEvent, tp:TouchPoint):Boolean
{
// No need to track more points than we need
if (_trackingPointsCount == maxTouchPointsCount)
{
return false;
}
// this particular gesture is interested only in those touchpoints on top of target
var touchTarget:InteractiveObject = event.target as InteractiveObject;
if (touchTarget != target && !(target is DisplayObjectContainer && (target as DisplayObjectContainer).contains(touchTarget)))
{
return false;
}
return true;
}
override public function onTouchBegin(touchPoint:TouchPoint):void
{
// No need to track more points than we need

38
src/org/gestouch/gestures/Gesture.as
View file

@ -1,18 +1,19 @@
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;
import flash.events.TouchEvent;
import flash.geom.Point;
import flash.system.Capabilities;
import org.gestouch.core.GesturesManager;
import org.gestouch.core.IGesture;
import org.gestouch.core.TouchPoint;
import org.gestouch.core.gestouch_internal;
import org.gestouch.events.GestureTrackingEvent;
import flash.display.DisplayObjectContainer;
import flash.display.InteractiveObject;
import flash.errors.IllegalOperationError;
import flash.events.EventDispatcher;
import flash.events.GestureEvent;
import flash.events.TouchEvent;
import flash.geom.Point;
import flash.system.Capabilities;
[Event(name="gestureTrackingBegin", type="org.gestouch.events.GestureTrackingEvent")]
@ -218,23 +219,32 @@ package org.gestouch.gestures
}
[Abstract]
/**
* Used by GesturesManager to check wether this gesture is interested in
* tracking this touch point upon this event (of type TouchEvent.TOUCH_BEGIN).
*
* <p>Most of the gestures check, if event.target is target or target contains event.target</p>
* <p>Most of the gestures check, if event.target is target or target contains event.target.</p>
*
* <p>No need to use it directly.</p>
*
* <p><b>NB!</b> This is abstract method and must be overridden.</p>
*
* @see org.gestouch.core.GesturesManager
* @see http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/flash/events/TouchEvent.html
*/
public function shouldTrackPoint(event:TouchEvent, tp:TouchPoint):Boolean
{
throw Error("shouldTrackPoint() is abstract method and must be overridden.");
// No need to track more points than we need
if (_trackingPointsCount == maxTouchPointsCount)
{
return false;
}
//By default gesture is interested only in those touchpoints on top of target
var touchTarget:InteractiveObject = event.target as InteractiveObject;
if (touchTarget != target && !(target is DisplayObjectContainer && (target as DisplayObjectContainer).contains(touchTarget)))
{
return false;
}
return true;
}

30
src/org/gestouch/gestures/LongPressGesture.as
View file

@ -1,16 +1,15 @@
package org.gestouch.gestures
{
import flash.display.DisplayObjectContainer;
import flash.display.InteractiveObject;
import flash.events.GesturePhase;
import flash.events.TimerEvent;
import flash.events.TouchEvent;
import flash.utils.Timer;
import org.gestouch.core.GesturesManager;
import org.gestouch.core.TouchPoint;
import org.gestouch.core.gestouch_internal;
import org.gestouch.events.LongPressGestureEvent;
import flash.display.InteractiveObject;
import flash.events.GesturePhase;
import flash.events.TimerEvent;
import flash.utils.Timer;
/**
@ -73,25 +72,6 @@ package org.gestouch.gestures
}
override public function shouldTrackPoint(event:TouchEvent, tp:TouchPoint):Boolean
{
// No need to track more points than we need
if (_trackingPointsCount == maxTouchPointsCount)
{
return false;
}
// this particular gesture is interested only in those touchpoints on top of target
var touchTarget:InteractiveObject = event.target as InteractiveObject;
if (touchTarget != target && !(target is DisplayObjectContainer && (target as DisplayObjectContainer).contains(touchTarget)))
{
return false;
}
return true;
}
override public function onTouchBegin(touchPoint:TouchPoint):void
{
// No need to track more points than we need

28
src/org/gestouch/gestures/RotateGesture.as
View file

@ -1,16 +1,15 @@
package org.gestouch.gestures
{
import flash.display.DisplayObjectContainer;
import flash.display.InteractiveObject;
import flash.events.GesturePhase;
import flash.events.TouchEvent;
import flash.geom.Point;
import org.gestouch.GestureUtils;
import org.gestouch.core.GesturesManager;
import org.gestouch.core.TouchPoint;
import org.gestouch.core.gestouch_internal;
import org.gestouch.events.RotateGestureEvent;
import flash.display.InteractiveObject;
import flash.events.GesturePhase;
import flash.geom.Point;
/**
@ -70,25 +69,6 @@ package org.gestouch.gestures
return RotateGesture;
}
override public function shouldTrackPoint(event:TouchEvent, tp:TouchPoint):Boolean
{
// No need to track more points than we need
if (_trackingPointsCount == maxTouchPointsCount)
{
return false;
}
// this particular gesture is interested only in those touchpoints on top of target
//FIXME?
var touchTarget:InteractiveObject = event.target as InteractiveObject;
if (touchTarget != target && !(target is DisplayObjectContainer && (target as DisplayObjectContainer).contains(touchTarget)))
{
return false;
}
return true;
}
override public function onTouchBegin(touchPoint:TouchPoint):void
{

30
src/org/gestouch/gestures/SwipeGesture.as
View file

@ -1,12 +1,5 @@
package org.gestouch.gestures
{
import flash.display.DisplayObjectContainer;
import flash.display.InteractiveObject;
import flash.events.GesturePhase;
import flash.events.TouchEvent;
import flash.geom.Point;
import flash.utils.getTimer;
import org.gestouch.Direction;
import org.gestouch.GestureUtils;
import org.gestouch.core.GesturesManager;
@ -14,6 +7,11 @@ package org.gestouch.gestures
import org.gestouch.core.gestouch_internal;
import org.gestouch.events.SwipeGestureEvent;
import flash.display.InteractiveObject;
import flash.events.GesturePhase;
import flash.geom.Point;
import flash.utils.getTimer;
/**
* SwipeGesture detects <i>swipe</i> motion (also known as <i>flick</i> or <i>flig</i>).
@ -74,24 +72,6 @@ package org.gestouch.gestures
return SwipeGesture;
}
override public function shouldTrackPoint(event:TouchEvent, tp:TouchPoint):Boolean
{
// No need to track more points than we need
if (_trackingPointsCount == maxTouchPointsCount)
{
return false;
}
// this particular gesture is interested only in those touchpoints on top of target
var touchTarget:InteractiveObject = event.target as InteractiveObject;
if (touchTarget != target && !(target is DisplayObjectContainer && (target as DisplayObjectContainer).contains(touchTarget)))
{
return false;
}
return true;
}
override public function onTouchBegin(touchPoint:TouchPoint):void
{

28
src/org/gestouch/gestures/ZoomGesture.as
View file

@ -1,15 +1,14 @@
package org.gestouch.gestures
{
import flash.display.DisplayObjectContainer;
import flash.display.InteractiveObject;
import flash.events.GesturePhase;
import flash.events.TouchEvent;
import flash.geom.Point;
import org.gestouch.core.GesturesManager;
import org.gestouch.core.TouchPoint;
import org.gestouch.core.gestouch_internal;
import org.gestouch.events.ZoomGestureEvent;
import flash.display.InteractiveObject;
import flash.events.GesturePhase;
import flash.geom.Point;
/**
@ -62,25 +61,6 @@ package org.gestouch.gestures
return ZoomGesture;
}
override public function shouldTrackPoint(event:TouchEvent, tp:TouchPoint):Boolean
{
// No need to track more points than we need
if (_trackingPointsCount == maxTouchPointsCount)
{
return false;
}
// this particular gesture is interested only in those touchpoints on top of target
//FIXME?
var touchTarget:InteractiveObject = event.target as InteractiveObject;
if (touchTarget != target && !(target is DisplayObjectContainer && (target as DisplayObjectContainer).contains(touchTarget)))
{
return false;
}
return true;
}
override public function onTouchBegin(touchPoint:TouchPoint):void
{