private static void AddItemsComplete(AsyncTaskData taskData)
{
var args = (AddRomsToMenuData)taskData;
args.MenuLayout.FinishItemsUpdate(args.Error == null);
if (args.Error == null)
{
if (args.Destination != null)
{
var insertFolder = args.MenuLayout.FindViewModelForModel(args.Destination);
FileNodeViewModel highlightItem = insertFolder;
// NOTE: Multi-Mode Tree will need to fix this!
if (insertFolder.IsOpen || (insertFolder == args.MenuLayout))
{
var items = insertFolder.Items;
var highlightIndex = args.InsertLocation;
if (highlightIndex < 0)
{
highlightIndex = System.Math.Max(0, items.Count - 1);
}
if (highlightIndex < items.Count)
{
highlightItem = items[highlightIndex];
highlightItem.IsSelected = true;
////args.MenuLayout.RetainFocus = items[highlightIndex].GetHashCode();
}
}
else
{
insertFolder.IsSelected = true;
////args.MenuLayout.RetainFocus = insertFolder.GetHashCode();
}
++args.MenuLayout.RetainFocus;
#if MAC
if (highlightItem != null)
{
args.MenuLayout.CurrentSelection = highlightItem;
}
#endif // MAC
}
}
if ((args.Error != null) || args.FailedToAdd.Any())
{
var exception = args.Error;
if (exception == null)
{
exception = args.FirstFilePreparationError;
}
IRomHelpers.ReportAddItemsError(exception, args.FailedToAdd);
}
}
private bool MoveItem(MenuLayoutViewModel menuLayout, FolderViewModel newParent, int indexInNewParent, FileNodeViewModel itemToMove)
{
var movedItem = true;
menuLayout.StartItemsUpdate();
// operate on the model
var parent = newParent.Model as Folder;
var itemToMoveModel = itemToMove.Model;
if (indexInNewParent >= parent.Files.Count)
{
if (!itemToMoveModel.Parent.MoveChildToNewParent(itemToMoveModel, parent, false))
{
throw new System.InvalidOperationException(Resources.Strings.MenuLayoutDragDrop_FailedToMoveItemMessage);
}
}
else
{
if (!itemToMoveModel.Parent.MoveChildToNewParent(itemToMoveModel, parent, indexInNewParent, false))
{
throw new System.InvalidOperationException(Resources.Strings.MenuLayoutDragDrop_FailedToMoveItemMessage);
}
}
menuLayout.FinishItemsUpdate(true);
return(movedItem);
}
/// <summary>
/// Initializes a new instance of the StartDragFileNodeCommand class.
/// </summary>
/// <param name="draggedItem">The item that's being dragged.</param>
/// <param name="canExecute">Function to call to determine if the command can be executed.</param>
public StartDragFileNodeCommand(FileNodeViewModel draggedItem, Func <object, bool> canExecute)
: base(NoOp, canExecute, null)
{
_draggedItem = draggedItem;
}
private static bool GetTreeIterForItem(out Gtk.TreeIter itemIter, Gtk.TreeIter parentIter, Gtk.TreeStore treeStore, FileNodeViewModel item, int index)
{
// if item is null, just get iterator at index
itemIter = Gtk.TreeIter.Zero;
var validIter = false;
var putAtFront = (index < 0) && (item == null);
if (parentIter.Equals(Gtk.TreeIter.Zero))
{
if (putAtFront)
{
validIter = treeStore.IterChildren(out itemIter);
}
else
{
validIter = (treeStore.IterNChildren() > index) && treeStore.IterNthChild(out itemIter, index);
}
}
else
{
if (putAtFront)
{
validIter = treeStore.IterChildren(out itemIter, parentIter);
}
else
{
validIter = (treeStore.IterNChildren(parentIter) > index) && treeStore.IterNthChild(out itemIter, parentIter, index);
}
}
var node = validIter ? treeStore.GetValue(itemIter, 0) as FileNodeViewModel : null;
var foundIt = (node == null) || (item == null) || object.ReferenceEquals(node, item);
return(foundIt && !itemIter.Equals(Gtk.TreeIter.Zero));
}
private static void ViewModelRemoved(FileNodeViewModel viewModel)
{
viewModel.Model = null;
}