public void Clear()
{
// Don't remove cards, but clear out their data
for (int i = 0; i < _carouselCards.Count; i++)
{
IActivityViewModelBase card = _carouselCards[i];
card.Clear();
if (_verticalMode)
{
MonoBehaviour cardBehavior = (card as MonoBehaviour);
Vector3 position = cardBehavior.transform.localPosition;
position.y = -i * ((cardBehavior.GetComponent <Collider>() as BoxCollider).size.y + _cardPadding);
cardBehavior.transform.localPosition = position;
}
}
// Old cached card data now too
_cardCache.Clear();
// Also clear out any date labels
DateListItem[] dateLabels = transform.GetComponentsInChildren <DateListItem>();
dateLabels.ToList().ForEach(x => Destroy(x.gameObject));
ScrollView.ResetPosition();
}
public void OnScrollViewDragFinished()
{
dragEndPosition = ScrollView.transform.position;
Transform newCenterTarget = null;
if (!_verticalMode)
{
Vector2 drag = dragEndPosition - dragStartPosition;
dragStartPosition = dragEndPosition = Vector3.zero;
float sqrDragDistance = Vector3.SqrMagnitude(drag);
if (sqrDragDistance > dragDistanceThreshold * dragDistanceThreshold ||
sqrDragDistance / ((Time.time - dragStartTime) / 1.5) > dragDistanceThreshold * dragDistanceThreshold)
{
// We dragged far enough: try centering on the next card in this direction.
if (null == CenterOnChild.centeredObject)
{
newCenterTarget = CenterOnChild.DetermineCenterTarget();
}
else
{
float dot = Vector3.Dot(drag, Vector3.right);
int newIndex = (int)(CenterCardIndex - Mathf.Sign(dot));
if (newIndex >= 0 && newIndex < _carouselCards.Count)
{
newCenterTarget = (_carouselCards[newIndex] as MonoBehaviour).transform;
}
else
{
newCenterTarget = CenterOnChild.centeredObject.transform;
}
}
}
}
if (null == newCenterTarget)
{
// Try recentering on centered object, if it exists
if (_verticalMode)
{
newCenterTarget = CenterOnChild.DetermineCenterTarget();
}
else
{
if (null != CenterOnChild.centeredObject)
{
CenterOnChild.Recenter();
}
else
{
Debug.LogError("CardCarousel: centered on null");
}
return;
}
}
DateListItem dli = newCenterTarget.GetComponent <DateListItem>();
Transform nearestToDateLabel = null;
int newTargetIndex = -1;
if (null != dli)
{
// Make sure we still recycle the cards if we center on a date label
// Find the nearest card in the direction we came from
Vector3 deltaScroll = dli.transform.localPosition - _prevCenterTarget.transform.localPosition;
RaycastHit[] hits = Physics.RaycastAll(dli.transform.position, -deltaScroll);
if (null != hits && hits.Length > 0)
{
// Pull out only cards, so no date labels
List <RaycastHit> hitList = hits.ToList().FindAll(x => null == x.collider.gameObject.GetComponent <DateListItem>());
// Sort by closest
hitList.Sort((a, b) => a.distance.CompareTo(b.distance));
// Grab the first (closest)
Transform closest = hitList[0].collider.transform;
if (null == closest)
{
return;
}
Debug.LogWarning("Found " + closest.name);
newTargetIndex = _carouselCards.FindIndex(x => (x as MonoBehaviour).transform == closest);
}
}
else if (!_verticalMode)
{
CenterOnChild.CenterOn(newCenterTarget);
}
if (newTargetIndex < 0)
{
newTargetIndex = _carouselCards.FindIndex(x => (x as MonoBehaviour).transform == newCenterTarget);
}
if (0 > newTargetIndex)
{
return;
}
if (_verticalMode)
{
_prevCenterTarget = newCenterTarget;
}
int halfCarouselLength = _carouselLength / 2;
int numCardsToMove = newTargetIndex - halfCarouselLength;
CenterCardIndex = newTargetIndex;
if (0 == numCardsToMove)
{
return;
}
// Slide the visible indices over an equal amount.
// Clamp the number of cards moved if it would push us out of bounds.
int oldMin = VisibleCardIndexMin;
VisibleCardIndexMin = Mathf.Clamp(VisibleCardIndexMin + numCardsToMove, 0, _cardCache.Count - _carouselLength);
int diff = VisibleCardIndexMin - oldMin;
numCardsToMove = diff;
VisibleCardIndexMax = Mathf.Clamp(VisibleCardIndexMax + numCardsToMove, _carouselLength - 1, _cardCache.Count - 1);
int positiveEdge = numCardsToMove < 0 ? 0 : _carouselCards.Count;
int negativeEdge = numCardsToMove < 0 ? _carouselCards.Count : 0;
int negativeIndex = negativeEdge - (negativeEdge == _carouselLength ? 1 : 0);
int positiveIndex = positiveEdge - (positiveEdge == _carouselLength ? 1 : 0);
for (int i = 0; i < Mathf.Abs(numCardsToMove); i++)
{
IActivityViewModelBase movedCard = _carouselCards[negativeIndex];
IActivityViewModelBase edgeCard = _carouselCards[positiveIndex];
DateTime lastDate = DateTime.MinValue;
if (_verticalMode)
{
lastDate = (edgeCard as ActivityTableCellViewModel).data.dateTime.Date;
}
int indexToPopulate = (numCardsToMove > 0 ? VisibleCardIndexMax - (numCardsToMove - 1 - i) : VisibleCardIndexMin + (Mathf.Abs(numCardsToMove) - 1 - i));
movedCard.Clear();
movedCard.Populate(_cardCache[indexToPopulate], _onCardClickedDelegate, _allowRecommending);
DateTime newDate = _cardCache[indexToPopulate].dateTime.Date;
Vector3 newPosition = (edgeCard as MonoBehaviour).transform.localPosition;
if (_verticalMode)
{
float singleCardOffset = ((edgeCard as MonoBehaviour).GetComponent <Collider>() as BoxCollider).size.y + _cardPadding;
newPosition.y -= (numCardsToMove > 0 ? 1 : -1) * singleCardOffset;
if (lastDate != newDate)
{
// If we're moving positive, it's the newDate. Else it's lastDate.
DateTime dateToShow = (numCardsToMove > 0 ? newDate : lastDate);
Vector3 dateListItemPosition = newPosition;
newPosition.y -= (numCardsToMove > 0 ? 1 : -1) * singleCardOffset;
// Check if there's already a date label for this date.
DateListItem[] dateLabels = ScrollView.transform.GetComponentsInChildren <DateListItem>();
var dateLabel = dateLabels.ToList().Find(x => x.dateTime.Date == dateToShow);
if (dateLabel == null)
{
// Now at the singleCardOffset position, spawn a date label.
GameObject dateListItemPrefab = (GameObject)Resources.Load(_cardPrefabPath + "DateListItem");
GameObject dateListItem = NGUITools.AddChild(ScrollView.gameObject, dateListItemPrefab);
DateListItem dliScript = dateListItem.GetComponent <DateListItem>();
UIDragScrollView dateDragScrollView = dateListItem.AddComponent <UIDragScrollView>();
dateDragScrollView.scrollView = ScrollView;
// Still respect relative dates
DateTime now = DateTime.Now;
DateTime yesterday = DateTime.Now.AddDays(-1);
DateTime tomorrow = DateTime.Now.AddDays(1);
if (dateToShow.Date == now.Date)
{
dliScript.dayLabel.text = "TODAY";
}
else if (dateToShow.Date == yesterday.Date)
{
dliScript.dayLabel.text = "YESTERDAY";
}
else if (dateToShow.Date == tomorrow.Date)
{
dliScript.dayLabel.text = "TOMORROW";
}
else
{
dliScript.dayLabel.text = dateToShow.DayOfWeek.ToString().ToUpper();
}
dliScript.dateLabel.text = dateToShow.ToString("M");
dliScript.dateTime = dateToShow.Date;
dateListItem.gameObject.transform.localPosition = dateListItemPosition;
}
}
}
else
{
newPosition.x += (numCardsToMove > 0 ? 1 : -1) * (((edgeCard as MonoBehaviour).GetComponent <Collider>() as BoxCollider).size.x + _cardPadding);
}
(movedCard as MonoBehaviour).transform.localPosition = newPosition;
_carouselCards.Insert(positiveEdge, movedCard);
_carouselCards.RemoveAt(negativeEdge);
}
if (null != dli)
{
return;
}
CenterCardIndex = _carouselCards.FindIndex(x => (x as MonoBehaviour).transform == newCenterTarget);
}
private void CreateCards(int desiredCount)
{
// Start where we left off. I.e. if we have 2 (indices 0 and 1), we start at 2 and go to 4, adding 3 (for a total of 5). :D
float offset = (_verticalMode ? (-160f - _cardPadding) : (540f + _cardPadding)) * (_carouselCards.Count);
int cap = Mathf.Min(desiredCount, _carouselLengthMax);
int olderSiblings = _scrollObject.transform.childCount;
// SUCH HACK: track the active status of the scroll object and restore it after we add cards. It needs to be active while adding.
bool scrollActiveStatus = _scrollObject.active;
_scrollObject.SetActive(true);
GameObject cardPrefabToMake = Resources.Load(_cardPrefabPath + (!_verticalMode ? _activityCardPrefabName : _activityCellPrefabName)) as GameObject;
for (int i = 0; i < cap; i++)
{
GameObject newCard = NGUITools.AddChild(_scrollObject, cardPrefabToMake);
newCard.name = "Card_" + (i + olderSiblings).ToString();
if (0f == dragDistanceThreshold)
{
BoxCollider col = newCard.GetComponent <BoxCollider>();
dragDistanceThreshold = col.bounds.size.x * 0.33f;
}
UIDragScrollView dragScrollView = newCard.GetComponent <UIDragScrollView>();
dragScrollView.scrollView = ScrollView;
IActivityViewModelBase cardScript = newCard.GetComponent(typeof(IActivityViewModelBase)) as IActivityViewModelBase;
if (null != cardScript)
{
_carouselCards.Add(cardScript);
}
Transform newCardTrans = newCard.transform;
Vector3 localPos = newCardTrans.localPosition;
if (!_verticalMode)
{
localPos.x = offset;
}
else
{
localPos.y = offset;
}
newCardTrans.localPosition = localPos;
offset += (_verticalMode ? -160f - _cardPadding : 540f + _cardPadding);
if (_carouselCards.Count == _carouselLengthMax)
{
break;
}
}
if (_verticalMode)
{
RepositionPadding();
_carouselLength = _carouselCards.Count;
_carouselLengthMax = Mathf.Max(_carouselLength, _carouselLengthMax);
}
else
{
_carouselLength = Mathf.Min(_carouselCards.Count, _carouselLengthMax);
}
_scrollObject.SetActive(scrollActiveStatus);
}
