private void ActionItemsDiscarded(object sender, DiscardedActionItemsEventArgs<IActionItem> e)
{
var actionsToRemove = e.ActionItems.Select(x => actionItems.FirstOrDefault(y => y.ActionItem.Identifier == x.Identifier)).ToList();
Dispatcher.Invoke(() => actionsToRemove.ForEach(x => actionItems.Remove(x)));
}
protected override void OnActionItemsDiscarded(DiscardedActionItemsEventArgs <IActionItem> e)
{
DiscardActionItemsRecursively(e.ActionItems, e.Type);
base.OnActionItemsDiscarded(e);
}
protected override void OnActionItemsDiscarded(DiscardedActionItemsEventArgs<IActionItem> e)
{
DiscardActionItemsRecursively(e.ActionItems, e.Type);
base.OnActionItemsDiscarded(e);
}
/// <summary>
/// Invoked whenever action items are discarded from the stack.
/// </summary>
/// <param name="e">The arguments that will be passed to the <see cref="ActionItemsDiscarded"/> event raised by this method.</param>
protected virtual void OnActionItemsDiscarded(DiscardedActionItemsEventArgs<IActionItem> e)
{
var handler = ActionItemsDiscarded;
if (handler != null)
handler(this, e);
}
private void ActionItemsDiscarded(object sender, DiscardedActionItemsEventArgs <IActionItem> e)
{
var actionsToRemove = e.ActionItems.Select(x => actionItems.FirstOrDefault(y => y.ActionItem.Identifier == x.Identifier)).ToList();
actionsToRemove.ForEach(x => actionItems.Remove(x));
}
private void ActionItemsDiscarded(object sender, DiscardedActionItemsEventArgs<IActionItem> e)
{
var dirtiables = new HashSet<IDirtiable>();
switch (e.Type)
{
case ActionItemDiscardType.Swallowed:
foreach (var actionItem in e.ActionItems.SelectMany(GetDirtiableItems))
{
foreach (var dirtiable in actionItem.Dirtiables)
{
List<DirtiableActionItem> dirtiableActionItems;
if (!dirtiableActionMap.TryGetValue(dirtiable, out dirtiableActionItems))
{
dirtiableActionItems = new List<DirtiableActionItem>();
dirtiableActionMap.Add(dirtiable, dirtiableActionItems);
}
dirtiableActionItems.Remove(actionItem);
if (!swallowedActionsMap.TryGetValue(dirtiable, out dirtiableActionItems))
{
dirtiableActionItems = new List<DirtiableActionItem>();
swallowedActionsMap.Add(dirtiable, dirtiableActionItems);
}
dirtiableActionItems.Add(actionItem);
}
}
break;
case ActionItemDiscardType.Disbranched:
foreach (var actionItem in e.ActionItems.SelectMany(GetDirtiableItems))
{
foreach (var dirtiable in actionItem.Dirtiables)
{
List<DirtiableActionItem> dirtiableActionItems;
if (!dirtiableActionMap.TryGetValue(dirtiable, out dirtiableActionItems))
{
dirtiableActionItems = new List<DirtiableActionItem>();
dirtiableActionMap.Add(dirtiable, dirtiableActionItems);
}
dirtiableActionItems.Remove(actionItem);
dirtiables.Add(dirtiable);
}
}
break;
case ActionItemDiscardType.UndoRedoInProgress:
break;
default:
throw new ArgumentOutOfRangeException();
}
UpdateDirtiables(dirtiables);
}
/// <summary>
/// Invoked whenever action items are discarded from the stack.
/// </summary>
/// <param name="e">The arguments that will be passed to the <see cref="ActionItemsDiscarded"/> event raised by this method.</param>
protected virtual void OnActionItemsDiscarded(DiscardedActionItemsEventArgs<IActionItem> e)
{
ActionItemsDiscarded?.Invoke(this, e);
}
