/// <summary>
/// Method called by Tobii XR when the gaze focus changes by implementing <see cref="IGazeFocusable"/>.
/// </summary>
/// <param name="hasFocus"></param>
public void GazeFocusChanged(bool hasFocus)
{
// Don't use this method if the component is disabled.
if (!enabled)
{
return;
}
_hasFocus = hasFocus;
// When the user starts focusing on this slider.
if (hasFocus)
{
// Set the first touch pad value.
_padXLastFrame = ControllerManager.Instance.GetTouchpadAxis().x;
// If the user is touching the touchpad, animate the slider handle to become visible.
if (ControllerManager.Instance.GetButtonTouch(TouchpadButton))
{
_sliderGraphics.StartHandleAnimation(true);
}
}
// When the user stops focusing on this slider.
else
{
// Start animating the handle to disappear.
_sliderGraphics.StartHandleAnimation(false);
}
// Animate the visual feedback.
_sliderGraphics.StartVisualFeedbackAnimation(hasFocus);
}
/// <summary>
/// Method for handling the user input.
/// </summary>
private void HandleInput()
{
// If the trigger button is pressed down when focusing on the slider.
if (ControllerManager.Instance.GetButtonPressDown(TriggerButton) && _hasFocus)
{
_operatingSlider = true;
_sliderGraphics.StartHandleAnimation(true);
return;
}
// Update the slider as long as the trigger button is being pressed down.
if (_operatingSlider)
{
UpdateSlider();
}
// When the trigger button is released, stop operating the slider.
if (ControllerManager.Instance.GetButtonPressUp(TriggerButton))
{
_operatingSlider = false;
_sliderGraphics.StartHandleAnimation(false);
_sliderGraphics.StartVisualFeedbackAnimation(_hasFocus);
}
}