public void HandlePointerInput(
PointerInputEvent inputEvent,
ref GestureEventResult result)
{
if (inputEvent.State == PointerInputState.Began)
{
this._delegate.OnTouchBegan();
}
else if (inputEvent.State == PointerInputState.Ended)
{
this._delegate.OnTouchEnded();
}
else if (inputEvent.State == PointerInputState.Canceled)
{
this._delegate.OnTouchCanceled();
}
this.OnPointerInput(inputEvent, ref result);
if ((this.State == GestureState.Recognized) ||
(this.State == GestureState.Failed) ||
(this.State == GestureState.Canceled))
{
// Reset on reaching a terminal node in the state machine
this.Reset();
}
}
private bool HandleLightDismissEvent(
View view,
PointerInputEvent pointerInputEvent)
{
bool handled = false;
if (pointerInputEvent.State == PointerInputState.Began)
{
LightDismissControl lightDismissControl = this.LightDismissControl;
if (null != lightDismissControl)
{
if (!lightDismissControl.HasDescendant(view))
{
// Invoke light dismiss
lightDismissControl.OnLightDismiss();
this.LightDismissControl = null;
handled = true;
}
}
}
return(handled);
}
public virtual bool HandlePointerEvent(
PointerInputEvent pointerInputEvent)
{
if (this.Application.HandlePreviewInput(this, pointerInputEvent))
{
return(true);
}
GestureEventResult result = new GestureEventResult();
this.GestureRecognizer?.HandlePointerInput(pointerInputEvent, ref result);
return(result.DidHandleEvent);
}
internal bool HandlePreviewInput(
Page page,
PointerInputEvent pointerInputEvent)
{
bool handled = false;
if (pointerInputEvent.State == PointerInputState.Began)
{
LightDismissControl lightDismissControl = this.LightDismissControl;
if (null != lightDismissControl)
{
// Invoke light dismiss
lightDismissControl.OnLightDismiss();
this.LightDismissControl = null;
handled = true;
}
}
return(handled);
}
public override bool HandlePointerEvent(
PointerInputEvent pointerInputEvent)
{
return this.Application.HandlePreviewInput(this, pointerInputEvent);
}
protected abstract void OnPointerInput(
PointerInputEvent inputEvent,
ref GestureEventResult result);
internal bool HandlePreviewInput(
View view,
PointerInputEvent pointerInputEvent)
{
return(this.HandleLightDismissEvent(view, pointerInputEvent));
}
