public void SetSupportedDragDropEffects(DragDropEffectsEx effects, DragDropEffectsEx defaultEffect = DragDropEffectsEx.Copy)
{
ContextMenu.Items.Clear();
foreach (var e in Enum.GetValues(typeof(DragDropEffectsEx)))
{
DragDropEffectsEx curEffect = (DragDropEffectsEx)e;
if (curEffect != DragDropEffectsEx.None && effects.HasFlag(curEffect))
{
var header = new TextBlock()
{
Text = curEffect.ToString()
};
if (curEffect.Equals(defaultEffect))
{
header.FontWeight = FontWeights.Bold;
ContextMenu.Items.Insert(0, new MenuItem()
{
Tag = e, Header = header
});
}
else
{
ContextMenu.Items.Add(new MenuItem()
{
Tag = e, Header = header
});
}
}
}
}
//public IEnumerable<IDraggable> QueryDropDraggables(IDataObject da)
//{
// if (da.GetDataPresent(Format_DragDropItem))
// {
// var data = da.GetData(Format_DragDropItem) as int[];
// for (int i = 0; i < data.Length; i++)
// yield return new DragDropItemViewModel(data[i], IsChildDroppable, IsChildDroppable);
// }
//}
public DragDropEffectsEx Drop(IEnumerable <IDraggable> draggable, DragDropEffectsEx allowedEffects)
{
if (allowedEffects.HasFlag(DragDropEffectsEx.Move) ||
allowedEffects.HasFlag(DragDropEffectsEx.Copy))
{
var draggableViewModels = draggable.Cast <DragDropItemViewModel>();
if (draggableViewModels.Any())
{
int idx = 0;
foreach (var d in draggableViewModels)
{
Items.Insert(idx++, d);
}
}
return(DragDropEffectsEx.Move);
}
else
{
return(DragDropEffectsEx.None);
}
}
public DragDropEffectsEx OnDropCompleted(IEnumerable <IEntryModel> entries, IDataObject da, IEntryModel destDir, DragDropEffectsEx allowedEffects)
{
string fileName = PathEx.GetFileName(destDir.FullPath);
if (fileName == null)
{
fileName = destDir.FullPath;
}
if (entries.Count() == 0)
{
return(DragDropEffectsEx.None);
}
if (entries.Any(e => e.Equals(destDir) || e.Parent.Equals(destDir)))
{
return(DragDropEffectsEx.None);
}
//if (MessageBox.Show(
// String.Format("[OnDropCompleted] ({2}) {0} entries to {1}",
// entries.Count(), fileName, allowedEffects), "FileBasedDragDropHandler.OnDropCompleted", MessageBoxButton.YesNo) == MessageBoxResult.Yes)
{
DragDropEffectsEx effect = allowedEffects.HasFlag(DragDropEffectsEx.Copy) ? DragDropEffectsEx.Copy :
allowedEffects.HasFlag(DragDropEffectsEx.Move) ? DragDropEffectsEx.Move : DragDropEffectsEx.None;
if (effect == DragDropEffectsEx.None)
{
return(DragDropEffectsEx.None);
}
ScriptRunner.RunScriptAsync(
WPFScriptCommands.ShowProgress(effect.ToString(),
IOScriptCommands.DiskTransfer(entries.ToArray(), destDir, effect == DragDropEffectsEx.Move, true), true));
return(effect);
};
return(DragDropEffectsEx.None);
}
