void HandleDifferentTarget(FrameworkElement hitTarget)
{
Debug.Assert(hitTarget != null);
_gazeMouseState = GazeMouseState.MouseEnter;
//_trace.TraceInformation("ENTER hit target: {0}", hitTarget);
if (_hitTarget != _offScreenElement)
{
GoToState(_hitTarget, ButtonState.Inactive, false);
}
}
bool HandleSameTarget(GazeEventArgs e, FrameworkElement hitTarget, long elapsed)
{
bool invokeTarget = false;
Debug.Assert(hitTarget != null);
GazeClickParameters clickParams;
if (hitTarget == _offScreenElement)
{
clickParams = _offScreenElementClickParams;
}
else if (_getGazeClickParams != null)
{
clickParams = _getGazeClickParams(hitTarget);
}
else
{
clickParams = _defaultClickParams;
}
//_trace.TraceInformation("ClickParameters: {0}, Elapsed: {1}", clickParams, elapsed);
AdjustHistorySampleTime(clickParams);
GazeMouseState oldState = _gazeMouseState;
switch (_gazeMouseState)
{
case GazeMouseState.MouseEnter:
if (elapsed >= clickParams.MouseDownDelay)
{
_gazeMouseState = GazeMouseState.MouseDown;
GoToStateNearClick(hitTarget, elapsed, clickParams.MouseDownDelay, clickParams.MouseUpDelay);
}
break;
case GazeMouseState.MouseDown:
if (elapsed >= clickParams.MouseUpDelay)
{
GoToState(hitTarget, ButtonState.Active, true);
_gazeMouseState = GazeMouseState.MouseUp;
invokeTarget = true;
}
else
{
GoToStateNearClick(hitTarget, elapsed, clickParams.MouseDownDelay, clickParams.MouseUpDelay);
}
break;
case GazeMouseState.MouseUp:
if (elapsed >= clickParams.RepeatMouseDownDelay)
{
_gazeMouseState = GazeMouseState.RepeatMouseUp;
// The history needs to be reset to ensure proper handling of
// mousedown/mouseup logic after the RepeatMouseDownDelay
ResetHistory();
}
break;
case GazeMouseState.RepeatMouseUp:
if (elapsed >= clickParams.MouseDownDelay)
{
_gazeMouseState = GazeMouseState.RepeatMouseDown;
GoToStateNearClick(hitTarget, elapsed, clickParams.MouseDownDelay, clickParams.MouseUpDelay);
}
break;
case GazeMouseState.RepeatMouseDown:
if (elapsed >= clickParams.MouseUpDelay)
{
GoToState(hitTarget, ButtonState.Active, true);
_gazeMouseState = GazeMouseState.RepeatMouseUp;
invokeTarget = true;
ResetHistory();
}
else
{
GoToStateNearClick(hitTarget, elapsed, clickParams.MouseDownDelay, clickParams.MouseUpDelay);
}
break;
default:
Debug.Assert(false);
break;
}
//_trace.TraceInformation("GazeMouseState: Old={0}, New={1}, hitTarget={2}", oldState, _gazeMouseState, hitTarget);
return(invokeTarget);
}
