public override async Task Invoke(object parameter)
{
ActionStack?.BeginTransaction();
commands.First().NodeCommand.StartCombinedInvoke();
await Task.WhenAll(commands.Select(x => x.Invoke(parameter)));
commands.First().NodeCommand.EndCombinedInvoke();
ActionStack?.EndTransaction($"Executed {Name}");
}
internal void EndCombinedAction(string displayName, string observableNodePath, object value)
{
var actions = ActionStack.GetCurrentTransactions();
if (actions.Count == 0)
{
ActionStack.DiscardTransaction();
}
else
{
ActionStack.EndTransaction(displayName, x => new CombinedValueChangedActionItem(displayName, observableViewModelService, observableNodePath, Identifier, x));
}
}
public override async Task Invoke(object parameter)
{
ActionStack?.BeginTransaction();
object index;
var modelNode = NodePath.GetSourceNode(out index);
if (modelNode == null)
{
throw new InvalidOperationException("Unable to retrieve the node on which to apply the redo operation.");
}
NodeCommand.Execute(modelNode.Content, index, parameter);
ActionStack?.EndTransaction($"Execute {Name}");
}
internal void EndCombinedAction(string displayName, string observableNodePath, object value)
{
var handler = NodeValueChanged;
if (handler != null)
{
foreach (var nodeChange in combinedNodeChanges)
{
handler(this, new ObservableViewModelNodeValueChangedArgs(this, nodeChange));
}
}
combinedNodeChanges.Clear();
ActionStack.EndTransaction(displayName);
}
internal void EndCombinedAction(string displayName, string observableNodePath, object value)
{
bool shouldDiscard = true;
foreach (var singleNode in dirtiableViewModels.Keys)
{
if (singleNode.Owner.singleNodeActionRegistered)
{
shouldDiscard = false;
}
singleNode.Owner.singleNodeActionRegistered = false;
}
if (shouldDiscard)
{
ActionStack.DiscardTransaction();
}
else
{
ActionStack.EndTransaction(displayName, x => new CombinedValueChangedActionItem(displayName, observableViewModelService, observableNodePath, Identifier, x));
}
}
internal void EndCombinedAction(string displayName, string observableNodePath, object value)
{
ActionStack.EndTransaction(displayName, x => new CombinedValueChangedActionItem(displayName, ObservableViewModelService, observableNodePath, Identifier, x));
}