public virtual void OnDrop(IListDragAndDropArgs args)
{
int indexShift = 0;
var selectedIndices = m_ListView.selectedIndices.OrderBy(i => i).ToArray();
for (int i = selectedIndices.Length - 1; i >= 0; --i)
{
var index = selectedIndices[i];
if (index < args.insertAtIndex)
{
indexShift--;
}
m_ListView.itemsSource.RemoveAt(index);
}
switch (args.dragAndDropPosition)
{
case DragAndDropPosition.OutsideItems:
case DragAndDropPosition.BetweenItems:
InsertRange(args.insertAtIndex + indexShift);
break;
default:
throw new ArgumentException($"{args.dragAndDropPosition} is not supported by {nameof(ListViewReorderableDragAndDropController)}.");
}
m_ListView.Refresh();
}
public virtual void OnDrop(IListDragAndDropArgs args)
{
int indexShift = 0;
foreach (var index in m_ListView.selectedIndices)
{
if (index < args.insertAtIndex)
{
indexShift--;
}
}
foreach (var selectedItem in m_ListView.selectedItems)
{
m_ListView.itemsSource.Remove(selectedItem);
}
switch (args.dragAndDropPosition)
{
case DragAndDropPosition.OutsideItems:
case DragAndDropPosition.BetweenItems:
InsertRange(args.insertAtIndex + indexShift);
break;
default:
throw new ArgumentException($"{args.dragAndDropPosition} is not supported by {nameof(ListViewReorderableDragAndDropController)}.");
}
m_ListView.Refresh();
}
public override void OnDrop(IListDragAndDropArgs args)
{
var insertAtId = m_TreeView.GetIdForIndex(args.insertAtIndex);
var insertAtParentId = m_TreeView.GetParentIdForIndex(args.insertAtIndex);
var insertAtChildIndex = m_TreeView.viewController.GetChildIndexForId(insertAtId);
if (args.dragAndDropPosition == DragAndDropPosition.OverItem || (insertAtId == -1 && insertAtParentId == -1 && insertAtChildIndex == -1))
{
for (var i = 0; i < m_SelectedIndices.Count; i++)
{
var index = m_SelectedIndices[i];
var id = m_TreeView.GetIdForIndex(index);
var parentId = insertAtId;
var childIndex = -1;
m_TreeView.viewController.Move(id, parentId, childIndex, false);
}
}
else
{
for (var i = m_SelectedIndices.Count - 1; i >= 0; --i)
{
var index = m_SelectedIndices[i];
var id = m_TreeView.GetIdForIndex(index);
var parentId = insertAtParentId;
var childIndex = insertAtChildIndex;
m_TreeView.viewController.Move(id, parentId, childIndex, false);
}
}
m_TreeView.viewController.RebuildTree();
m_TreeView.RefreshItems();
}
public virtual DragVisualMode HandleDragAndDrop(IListDragAndDropArgs args)
{
if (args.dragAndDropPosition == DragAndDropPosition.OverItem || !enableReordering)
{
return(DragVisualMode.Rejected);
}
return(args.dragAndDropData.userData == m_ListView ? DragVisualMode.Move : DragVisualMode.Rejected);
}
public override DragVisualMode HandleDragAndDrop(IListDragAndDropArgs args)
{
if (!enableReordering)
{
return(DragVisualMode.Rejected);
}
return(args.dragAndDropData.userData == m_TreeView ? DragVisualMode.Move : DragVisualMode.Rejected);
}
public override void OnDrop(IListDragAndDropArgs args)
{
switch (args.dragAndDropPosition)
{
case DragAndDropPosition.OutsideItems:
case DragAndDropPosition.BetweenItems:
// we're ok'
break;
default:
throw new ArgumentException($"{args.dragAndDropPosition} is not supported by {nameof(SerializedObjectListReorderableDragAndDropController)}.");
}
base.OnDrop(args);
}
public override void OnDrop(IListDragAndDropArgs args)
{
var insertIndex = args.insertAtIndex;
var insertIndexShift = 0;
var srcIndexShift = 0;
for (var i = m_SelectedIndices.Count - 1; i >= 0; --i)
{
var index = m_SelectedIndices[i];
if (index < 0)
{
continue;
}
var newIndex = insertIndex - insertIndexShift;
if (index > insertIndex)
{
index += srcIndexShift;
srcIndexShift++;
}
else if (index < newIndex)
{
insertIndexShift++;
newIndex--;
}
m_ListView.viewController.Move(index, newIndex);
}
if (m_ListView.selectionType != SelectionType.None)
{
var newSelection = new List <int>();
for (var i = 0; i < m_SelectedIndices.Count; ++i)
{
newSelection.Add(insertIndex - insertIndexShift + i);
}
m_ListView.SetSelectionWithoutNotify(newSelection);
}
else
{
m_ListView.ClearSelection();
}
}
public override void OnDrop(IListDragAndDropArgs args)
{
switch (args.dragAndDropPosition)
{
case DragAndDropPosition.OutsideItems:
case DragAndDropPosition.BetweenItems:
// we're ok'
break;
default:
throw new ArgumentException($"{args.dragAndDropPosition} is not supported by {nameof(SerializedObjectListReorderableDragAndDropController)}.");
}
var array = objectList;
// TODO: GC Allocs generated by LINQ
var selection = m_ListView.selectedIndices.OrderBy((i) => i).ToArray();
var baseOffset = 0;
if (m_ListView.showBoundCollectionSize)
{
//we must offset everything by 1
baseOffset = -1;
}
var insertIndex = args.insertAtIndex + baseOffset;
int insertIndexShift = 0;
int srcIndexShift = 0;
for (int i = selection.Length - 1; i >= 0; --i)
{
var index = selection[i] + baseOffset;
if (index < 0)
{
continue;
}
var newIndex = insertIndex - insertIndexShift;
if (index > insertIndex)
{
index += srcIndexShift;
srcIndexShift++;
}
else if (index < newIndex)
{
insertIndexShift++;
newIndex--;
}
array.Move(index, newIndex);
onItemMoved?.Invoke(new ItemMoveArgs <object>
{
item = objectList[index],
newIndex = newIndex,
previousIndex = index
});
}
array.ApplyChanges();
var newSelection = new List <int>();
for (int i = 0; i < selection.Length; ++i)
{
newSelection.Add(insertIndex - insertIndexShift + i - baseOffset);
}
m_ListView.SetSelectionWithoutNotify(newSelection);
}
public abstract void OnDrop(IListDragAndDropArgs args);
public abstract DragVisualMode HandleDragAndDrop(IListDragAndDropArgs args);
