private void OnItemToggled(int index, bool isOn)
{
if (isOn)
{
UnityObject item = (UnityObject)listView.GetItem(index);
if (item == null)
{
OnObjectSelected?.Invoke(null);
}
else
{
OnObjectSelected?.Invoke(item);
}
Dismiss();
}
}
public void OnDrop(PointerEventData eventData)
{
if (!canReorderItems || !isDragging)
{
return;
}
float contentYPos = pointerLastYPos + scroll.content.anchoredPosition.y;
int dataIndex = (int)contentYPos / (int)itemHeight;
object target = listView.GetItem(dataIndex);
if (target == null)
{
InvokeOnReparent(draggingItem, target, ItemDropAction.SetLastChild);
}
else
{
int insertDirection = 0;
float relativePosition = contentYPos % itemHeight;
if (relativePosition < siblingIndexModificationArea)
{
insertDirection = -1;
}
else if (relativePosition > itemHeight - siblingIndexModificationArea)
{
insertDirection = 1;
}
if (insertDirection != 0)
{
if (insertDirection < 0 && dataIndex > 0)
{
object newTarget = listView.GetItem(dataIndex - 1);
if (newTarget != null)
{
target = newTarget;
insertDirection = 1;
}
}
else if (insertDirection > 0 && dataIndex < listView.ItemCount - 1)
{
object newTarget = listView.GetItem(dataIndex + 1);
if (newTarget != null)
{
target = newTarget;
insertDirection = -1;
}
}
}
// Dropped onto self.
if (target == null || target == draggingItem)
{
StopDragging();
return;
}
int targetIndex = listView.IndexOf(target);
switch (insertDirection)
{
case 0:
if (InvokeOnReparenting(draggingItem, target, ItemDropAction.SetLastChild))
{
listView.RemoveItem(draggingItem);
InvokeOnReparent(draggingItem, target, ItemDropAction.SetLastChild);
}
break;
case -1:
if (InvokeOnReparenting(draggingItem, target, ItemDropAction.SetPreviousSibling))
{
listView.MoveItem(draggingItem, targetIndex);
InvokeOnReparent(draggingItem, target, ItemDropAction.SetPreviousSibling);
}
break;
case 1:
if (InvokeOnReparenting(draggingItem, target, ItemDropAction.SetNextSibling))
{
listView.MoveItem(draggingItem, targetIndex + 1);
InvokeOnReparent(draggingItem, target, ItemDropAction.SetNextSibling);
}
break;
}
SelectItemInternal(draggingItem);
}
draggingItem = null;
StopDragging();
}