Merge "Add 'isTransitioningBetween' and 'isTransitioningFromOrTo' in observable" into main

            (from == null || this.fromContent == from) &&

            (to == null || this.toContent == to)

    }

    /** Whether we are transitioning from [content] to [other], or from [other] to [content]. */

    fun isTransitioningBetween(content: ContentKey, other: ContentKey): Boolean {

        return isTransitioning(from = content, to = other) ||

            isTransitioning(from = other, to = content)

    }

    /** Whether we are transitioning from or to [content]. */

    fun isTransitioningFromOrTo(content: ContentKey): Boolean {

        return isTransitioning(from = content) || isTransitioning(to = content)

    }

}

/**