handleMouseEnter (event) {
      const { focusableItems, focusAtIndex } = this.context
      if (this.isDisabled) {
        event.stopPropagation()
        event.preventDefault()
        return
      }
      const nextIndex = focusableItems.indexOf(event.currentTarget)
      focusAtIndex(nextIndex)

      this.$emit('mouseenter', event)
    }
Handles mouseenter event
@param {Event} event Mouse event object