getTransitionEffectTiming method

EffectTiming? getTransitionEffectTiming(String property)

Implementation

EffectTiming? getTransitionEffectTiming(String property) {

  List? transitionOptions = effectiveTransitions[property] ?? effectiveTransitions[ALL];
  // [duration, function, delay]
  if (transitionOptions != null) {

    return EffectTiming(
      duration: CSSTime.parseTime(transitionOptions[0])!.toDouble(),
      easing: transitionOptions[1],
      delay: CSSTime.parseTime(transitionOptions[2])!.toDouble(),
      // In order for CSS Transitions to be seeked backwards, they need to have their fill mode set to backwards
      // such that the original CSS value applied prior to the transition is used for a negative current time.
      fill: FillMode.backwards,
    );
  }

  return null;
}