private void OnBeginTransactionCore(object originalSource, object parameter)
{
if (this.ActiveDocument == null)
{
return;
}
FrameworkElement element = originalSource as FrameworkElement;
if (element != null)
{
this.HookEditEndingHandlers(element);
}
string description = string.Format((IFormatProvider)CultureInfo.CurrentCulture, StringTable.PropertyChangeUndoDescription, new object[1]
{
(object)"Property"
});
string str = parameter as string;
PropertyTransactionParameters transactionParameters = parameter as PropertyTransactionParameters;
SceneEditTransactionType transactionType = SceneEditTransactionType.AutoCommitting;
if (transactionParameters != null)
{
description = transactionParameters.TransactionDescription;
transactionType = transactionParameters.TransactionType;
}
else if (str != null)
{
description = str;
}
else
{
PropertyContainer propertyContainer;
if ((propertyContainer = PropertyEditingHelper.GetPropertyContainer(originalSource)) != null)
{
description = string.Format((IFormatProvider)CultureInfo.CurrentCulture, StringTable.PropertyChangeUndoDescription, new object[1]
{
(object)propertyContainer.get_PropertyEntry().get_PropertyName()
});
}
}
this.editTransactions.Push(this.ActiveDocument.CreateEditTransaction(description, false, transactionType));
}
public SceneEditTransaction CreateEditTransaction(string description, bool hidden, SceneEditTransactionType transactionType)
{
if (this.autoClosingTransactionStack.Count > 0 && transactionType != SceneEditTransactionType.NestedInAutoClosing)
{
bool flag = false;
foreach (KeyValuePair <SceneEditTransaction, SceneEditTransactionType> keyValuePair in this.autoClosingTransactionStack)
{
if (keyValuePair.Value == SceneEditTransactionType.NestedInAutoClosing)
{
flag = true;
break;
}
}
if (!flag)
{
KeyValuePair <SceneEditTransaction, SceneEditTransactionType> keyValuePair = this.autoClosingTransactionStack.Pop();
if (keyValuePair.Value == SceneEditTransactionType.AutoCommitting)
{
keyValuePair.Key.Commit();
}
else
{
keyValuePair.Key.Cancel();
}
}
}
IUndoTransaction undo = this.UndoService.CreateUndo(description, hidden);
++this.openEditTransactionCount;
SceneEditTransaction key = new SceneEditTransaction(this.designerContext.ExternalChanges, this, undo);
if (this.autoClosingTransactionStack.Count > 0 || transactionType == SceneEditTransactionType.AutoCommitting || transactionType == SceneEditTransactionType.AutoCancelling)
{
this.autoClosingTransactionStack.Push(new KeyValuePair <SceneEditTransaction, SceneEditTransactionType>(key, transactionType));
}
return(key);
}