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Optimized event dispatching

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This commit is contained in:
Pavel fljot 2011-12-30 18:26:16 +02:00
parent 3e1b5948b2
commit 47f2f848e4
7 changed files with 80 additions and 40 deletions
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30
src/org/gestouch/gestures/Gesture.as
View file

@ -156,17 +156,6 @@ package org.gestouch.gestures
// //
//-------------------------------------------------------------------------- //--------------------------------------------------------------------------
override public function dispatchEvent(event:Event):Boolean
{
if (hasEventListener(event.type))
{
return super.dispatchEvent(event);
}
return true;
}
[Abstract] [Abstract]
/** /**
* Reflects gesture class (for better perfomance). * Reflects gesture class (for better perfomance).
@ -327,15 +316,11 @@ package org.gestouch.gestures
} }
protected function setState(newState:uint, event:GestureEvent = null):void protected function setState(newState:uint):Boolean
{ {
if (_state == newState) if (_state == newState && _state == GestureState.CHANGED)
{ {
if (_state == GestureState.CHANGED && event) return true;
{
dispatchEvent(event);
}
return;
} }
//TODO: is state sequence validation needed? e.g.: //TODO: is state sequence validation needed? e.g.:
@ -349,7 +334,7 @@ package org.gestouch.gestures
if (delegate && !delegate.gestureShouldBegin(this)) if (delegate && !delegate.gestureShouldBegin(this))
{ {
setState(GestureState.FAILED); setState(GestureState.FAILED);
return; return false;
} }
} }
@ -363,16 +348,17 @@ package org.gestouch.gestures
//TODO: what if RTE happens in event handlers? //TODO: what if RTE happens in event handlers?
dispatchEvent(new GestureStateEvent(GestureStateEvent.STATE_CHANGE, _state, oldState)); if (hasEventListener(GestureStateEvent.STATE_CHANGE))
if (event)
{ {
dispatchEvent(event); dispatchEvent(new GestureStateEvent(GestureStateEvent.STATE_CHANGE, _state, oldState));
} }
if (_state == GestureState.BEGAN || _state == GestureState.RECOGNIZED) if (_state == GestureState.BEGAN || _state == GestureState.RECOGNIZED)
{ {
_gesturesManager.onGestureRecognized(this); _gesturesManager.onGestureRecognized(this);
} }
return true;
} }

15
src/org/gestouch/gestures/LongPressGesture.as
View file

@ -133,7 +133,10 @@ package org.gestouch.gestures
else if (state == GestureState.BEGAN || state == GestureState.CHANGED) else if (state == GestureState.BEGAN || state == GestureState.CHANGED)
{ {
updateLocation(); updateLocation();
setState(GestureState.CHANGED, new LongPressGestureEvent(LongPressGestureEvent.GESTURE_LONG_PRESS, false, false, GesturePhase.UPDATE, _localLocation.x, _localLocation.y)); if (setState(GestureState.CHANGED) && hasEventListener(LongPressGestureEvent.GESTURE_LONG_PRESS))
{
dispatchEvent(new LongPressGestureEvent(LongPressGestureEvent.GESTURE_LONG_PRESS, false, false, GesturePhase.UPDATE, _localLocation.x, _localLocation.y));
}
} }
} }
@ -146,7 +149,10 @@ package org.gestouch.gestures
if (((GestureState.BEGAN | GestureState.CHANGED) & state) > 0) if (((GestureState.BEGAN | GestureState.CHANGED) & state) > 0)
{ {
updateLocation(); updateLocation();
setState(GestureState.ENDED, new LongPressGestureEvent(LongPressGestureEvent.GESTURE_LONG_PRESS, false, false, GesturePhase.END, _localLocation.x, _localLocation.y)); if (setState(GestureState.ENDED) && hasEventListener(LongPressGestureEvent.GESTURE_LONG_PRESS))
{
dispatchEvent(new LongPressGestureEvent(LongPressGestureEvent.GESTURE_LONG_PRESS, false, false, GesturePhase.END, _localLocation.x, _localLocation.y));
}
} }
else else
{ {
@ -173,7 +179,10 @@ package org.gestouch.gestures
if (state == GestureState.POSSIBLE) if (state == GestureState.POSSIBLE)
{ {
updateLocation(); updateLocation();
setState(GestureState.BEGAN, new LongPressGestureEvent(LongPressGestureEvent.GESTURE_LONG_PRESS, false, false, GesturePhase.BEGIN, _localLocation.x, _localLocation.y)); if (setState(GestureState.BEGAN) && hasEventListener(LongPressGestureEvent.GESTURE_LONG_PRESS))
{
dispatchEvent(new LongPressGestureEvent(LongPressGestureEvent.GESTURE_LONG_PRESS, false, false, GesturePhase.BEGIN, _localLocation.x, _localLocation.y));
}
} }
} }
} }

15
src/org/gestouch/gestures/PanGesture.as
View file

@ -158,7 +158,10 @@ package org.gestouch.gestures
offset = offset.subtract(slopVector); offset = offset.subtract(slopVector);
} }
setState(GestureState.BEGAN, new PanGestureEvent(PanGestureEvent.GESTURE_PAN, false, false, GesturePhase.BEGIN, _localLocation.x, _localLocation.y, offset.x, offset.y)); if (setState(GestureState.BEGAN) && hasEventListener(PanGestureEvent.GESTURE_PAN))
{
dispatchEvent(new PanGestureEvent(PanGestureEvent.GESTURE_PAN, false, false, GesturePhase.BEGIN, _localLocation.x, _localLocation.y, offset.x, offset.y));
}
} }
} }
else if (state == GestureState.BEGAN || state == GestureState.CHANGED) else if (state == GestureState.BEGAN || state == GestureState.CHANGED)
@ -169,7 +172,10 @@ package org.gestouch.gestures
offsetX = _location.x - prevLocationX; offsetX = _location.x - prevLocationX;
offsetY = _location.y - prevLocationY; offsetY = _location.y - prevLocationY;
setState(GestureState.CHANGED, new PanGestureEvent(PanGestureEvent.GESTURE_PAN, false, false, GesturePhase.UPDATE, _localLocation.x, _localLocation.y, offsetX, offsetY)); if (setState(GestureState.CHANGED) && hasEventListener(PanGestureEvent.GESTURE_PAN))
{
dispatchEvent(new PanGestureEvent(PanGestureEvent.GESTURE_PAN, false, false, GesturePhase.UPDATE, _localLocation.x, _localLocation.y, offsetX, offsetY));
}
} }
} }
@ -184,7 +190,10 @@ package org.gestouch.gestures
} }
else else
{ {
setState(GestureState.ENDED, new PanGestureEvent(PanGestureEvent.GESTURE_PAN, false, false, GesturePhase.END, _localLocation.x, _localLocation.y, 0, 0)); if (setState(GestureState.ENDED) && hasEventListener(PanGestureEvent.GESTURE_PAN))
{
dispatchEvent(new PanGestureEvent(PanGestureEvent.GESTURE_PAN, false, false, GesturePhase.END, _localLocation.x, _localLocation.y, 0, 0));
}
} }
} }
else else

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

@ -138,11 +138,17 @@ package org.gestouch.gestures
if (state == GestureState.POSSIBLE) if (state == GestureState.POSSIBLE)
{ {
setState(GestureState.BEGAN, new RotateGestureEvent(RotateGestureEvent.GESTURE_ROTATE, false, false, GesturePhase.BEGIN, _localLocation.x, _localLocation.y, rotation)); if (setState(GestureState.BEGAN) && hasEventListener(RotateGestureEvent.GESTURE_ROTATE))
{
dispatchEvent(new RotateGestureEvent(RotateGestureEvent.GESTURE_ROTATE, false, false, GesturePhase.BEGIN, _localLocation.x, _localLocation.y, rotation));
}
} }
else else
{ {
setState(GestureState.CHANGED, new RotateGestureEvent(RotateGestureEvent.GESTURE_ROTATE, false, false, GesturePhase.UPDATE, _localLocation.x, _localLocation.y, rotation)); if (setState(GestureState.CHANGED) && hasEventListener(RotateGestureEvent.GESTURE_ROTATE))
{
dispatchEvent(new RotateGestureEvent(RotateGestureEvent.GESTURE_ROTATE, false, false, GesturePhase.UPDATE, _localLocation.x, _localLocation.y, rotation));
}
} }
} }
} }
@ -155,7 +161,10 @@ package org.gestouch.gestures
{ {
if (state == GestureState.BEGAN || state == GestureState.CHANGED) if (state == GestureState.BEGAN || state == GestureState.CHANGED)
{ {
setState(GestureState.ENDED, new RotateGestureEvent(RotateGestureEvent.GESTURE_ROTATE, false, false, GesturePhase.END, _localLocation.x, _localLocation.y, 0)); if (setState(GestureState.ENDED) && hasEventListener(RotateGestureEvent.GESTURE_ROTATE))
{
dispatchEvent(new RotateGestureEvent(RotateGestureEvent.GESTURE_ROTATE, false, false, GesturePhase.END, _localLocation.x, _localLocation.y, 0));
}
} }
else if (state == GestureState.POSSIBLE) else if (state == GestureState.POSSIBLE)
{ {
@ -171,7 +180,10 @@ package org.gestouch.gestures
if (state == GestureState.BEGAN || state == GestureState.CHANGED) if (state == GestureState.BEGAN || state == GestureState.CHANGED)
{ {
updateLocation(); updateLocation();
setState(GestureState.CHANGED, new RotateGestureEvent(RotateGestureEvent.GESTURE_ROTATE, false, false, GesturePhase.UPDATE, _localLocation.x, _localLocation.y, 0)); if (setState(GestureState.CHANGED) && hasEventListener(RotateGestureEvent.GESTURE_ROTATE))
{
dispatchEvent(new RotateGestureEvent(RotateGestureEvent.GESTURE_ROTATE, false, false, GesturePhase.UPDATE, _localLocation.x, _localLocation.y, 0));
}
} }
} }
} }

15
src/org/gestouch/gestures/SwipeGesture.as
View file

@ -117,7 +117,10 @@ package org.gestouch.gestures
{ {
if (absVel >= minVelocity || (minDistance != minDistance || offsetLength >= minDistance)) if (absVel >= minVelocity || (minDistance != minDistance || offsetLength >= minDistance))
{ {
setState(GestureState.RECOGNIZED, new SwipeGestureEvent(SwipeGestureEvent.GESTURE_SWIPE, false, false, GesturePhase.ALL, _localLocation.x, _localLocation.y, _offset.x, _offset.y)); if (setState(GestureState.RECOGNIZED) && hasEventListener(SwipeGestureEvent.GESTURE_SWIPE))
{
dispatchEvent(new SwipeGestureEvent(SwipeGestureEvent.GESTURE_SWIPE, false, false, GesturePhase.ALL, _localLocation.x, _localLocation.y, _offset.x, _offset.y));
}
} }
} }
else else
@ -145,7 +148,10 @@ package org.gestouch.gestures
} }
else if (absVelX >= minVelocity || (minDistance != minDistance || absOffsetX >= minDistance)) else if (absVelX >= minVelocity || (minDistance != minDistance || absOffsetX >= minDistance))
{ {
setState(GestureState.RECOGNIZED, new SwipeGestureEvent(SwipeGestureEvent.GESTURE_SWIPE, false, false, GesturePhase.ALL, _localLocation.x, _localLocation.y, _offset.x, 0)); if (setState(GestureState.RECOGNIZED) && hasEventListener(SwipeGestureEvent.GESTURE_SWIPE))
{
dispatchEvent(new SwipeGestureEvent(SwipeGestureEvent.GESTURE_SWIPE, false, false, GesturePhase.ALL, _localLocation.x, _localLocation.y, _offset.x, 0));
}
} }
} }
else if (absVelY > absVelX) else if (absVelY > absVelX)
@ -165,7 +171,10 @@ package org.gestouch.gestures
} }
else if (absVelY >= minVelocity || (minDistance != minDistance || absOffsetY >= minDistance)) else if (absVelY >= minVelocity || (minDistance != minDistance || absOffsetY >= minDistance))
{ {
setState(GestureState.RECOGNIZED, new SwipeGestureEvent(SwipeGestureEvent.GESTURE_SWIPE, false, false, GesturePhase.ALL, _localLocation.x, _localLocation.y, 0, _offset.y)); if (setState(GestureState.RECOGNIZED) && hasEventListener(SwipeGestureEvent.GESTURE_SWIPE))
{
dispatchEvent(new SwipeGestureEvent(SwipeGestureEvent.GESTURE_SWIPE, false, false, GesturePhase.ALL, _localLocation.x, _localLocation.y, 0, _offset.y));
}
} }
} }
else else

5
src/org/gestouch/gestures/TapGesture.as
View file

@ -151,7 +151,10 @@ package org.gestouch.gestures
if (_tapCounter == numTapsRequired) if (_tapCounter == numTapsRequired)
{ {
updateLocation(); updateLocation();
setState(GestureState.RECOGNIZED, new TapGestureEvent(TapGestureEvent.GESTURE_TAP, false, false, GesturePhase.ALL, _localLocation.x, _localLocation.y)); if (setState(GestureState.RECOGNIZED) && hasEventListener(TapGestureEvent.GESTURE_TAP))
{
dispatchEvent(new TapGestureEvent(TapGestureEvent.GESTURE_TAP, false, false, GesturePhase.ALL, _localLocation.x, _localLocation.y));
}
} }
else else
{ {

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

@ -148,11 +148,17 @@ package org.gestouch.gestures
if (state == GestureState.POSSIBLE) if (state == GestureState.POSSIBLE)
{ {
setState(GestureState.BEGAN, new ZoomGestureEvent(ZoomGestureEvent.GESTURE_ZOOM, false, false, GesturePhase.BEGIN, _localLocation.x, _localLocation.y, scaleX, scaleY)); if (setState(GestureState.BEGAN) && hasEventListener(ZoomGestureEvent.GESTURE_ZOOM))
{
dispatchEvent(new ZoomGestureEvent(ZoomGestureEvent.GESTURE_ZOOM, false, false, GesturePhase.BEGIN, _localLocation.x, _localLocation.y, scaleX, scaleY));
}
} }
else else
{ {
setState(GestureState.CHANGED, new ZoomGestureEvent(ZoomGestureEvent.GESTURE_ZOOM, false, false, GesturePhase.UPDATE, _localLocation.x, _localLocation.y, scaleX, scaleY)); if (setState(GestureState.CHANGED) && hasEventListener(ZoomGestureEvent.GESTURE_ZOOM))
{
dispatchEvent(new ZoomGestureEvent(ZoomGestureEvent.GESTURE_ZOOM, false, false, GesturePhase.UPDATE, _localLocation.x, _localLocation.y, scaleX, scaleY));
}
} }
} }
} }
@ -165,7 +171,10 @@ package org.gestouch.gestures
{ {
if (state == GestureState.BEGAN || state == GestureState.CHANGED) if (state == GestureState.BEGAN || state == GestureState.CHANGED)
{ {
setState(GestureState.ENDED, new ZoomGestureEvent(ZoomGestureEvent.GESTURE_ZOOM, false, false, GesturePhase.END, _localLocation.x, _localLocation.y, 1, 1)); if (setState(GestureState.ENDED) && hasEventListener(ZoomGestureEvent.GESTURE_ZOOM))
{
dispatchEvent(new ZoomGestureEvent(ZoomGestureEvent.GESTURE_ZOOM, false, false, GesturePhase.END, _localLocation.x, _localLocation.y, 1, 1));
}
} }
else if (state == GestureState.POSSIBLE) else if (state == GestureState.POSSIBLE)
{ {
@ -181,7 +190,10 @@ package org.gestouch.gestures
if (state == GestureState.BEGAN || state == GestureState.CHANGED) if (state == GestureState.BEGAN || state == GestureState.CHANGED)
{ {
updateLocation(); updateLocation();
setState(GestureState.CHANGED, new ZoomGestureEvent(ZoomGestureEvent.GESTURE_ZOOM, false, false, GesturePhase.UPDATE, _localLocation.x, _localLocation.y, 1, 1)); if (setState(GestureState.CHANGED) && hasEventListener(ZoomGestureEvent.GESTURE_ZOOM))
{
dispatchEvent(new ZoomGestureEvent(ZoomGestureEvent.GESTURE_ZOOM, false, false, GesturePhase.UPDATE, _localLocation.x, _localLocation.y, 1, 1));
}
} }
} }
} }