private static void Cancel()
{
dropInfo?.DropTargetAdorner?.Detach();
dropInfo = null;
dragInfo = null;
}
public static void HandleDropForTarget(DragDropEffects result, DragEventArgs e = null)
{
System.Diagnostics.Debug.WriteLine($"HandleDropForTarget: {dropInfo.TargetItem.Item}");
IEnumerable <CmdBase> data = DropInfo.ExtractDropData(dragInfo, e);
if (dropInfo.CanAcceptData(data) &&
(result.HasFlag(DragDropEffects.Move) || result.HasFlag(DragDropEffects.Copy)))
{
var idx = dropInfo.InsertIndex;
if (result.HasFlag(DragDropEffects.Copy))
{
data = data.Select(cmd => cmd.Copy());
}
var dataList = data.ToList();
var souldDeselctItem = dropInfo.InsertPosition.HasFlag(DropInfo.RelativInsertPosition.IntoTargetItem) &&
dropInfo.TargetItem.Item is CmdContainer tarCon &&
!tarCon.IsExpanded;
if (dataList.Count > 0)
{
ToolWindowHistory.SaveState();
}
foreach (var sourceItem in dataList)
{
if (souldDeselctItem)
{
if (sourceItem is CmdContainer con)
{
con.GetEnumerable(useView: false, includeSelf: true)
.ForEach(item => item.IsSelected = false);
}
else
{
sourceItem.IsSelected = false;
}
}
dropInfo.TargetContainer.Insert(idx++, sourceItem);
}
var focusItem = dragInfo?.DirectSourceItem ?? dataList.FirstOrDefault();
var selectItemCommand = dropInfo.TargetItem.ParentTreeView.SelectItemCommand;
if (souldDeselctItem)
{
selectItemCommand.SafeExecute(dropInfo.TargetItem.Item);
}
else if (selectItemCommand.SafeExecute(focusItem))
{
foreach (var sourceItem in dataList)
{
sourceItem.IsSelected = true;
}
}
}
else
{
if (e != null)
{
e.Effects = DragDropEffects.None;
}
}
dropInfo?.DropTargetAdorner?.Detach();
dropInfo = null;
}