public UndoTransactionImpl(ITextUndoHistory history, ITextUndoTransaction parent, string description)
{
if (history == null)
{
throw new ArgumentNullException(nameof(history));
}
if (string.IsNullOrEmpty(description))
{
throw new ArgumentNullException(nameof(description));
}
_history = history as UndoHistoryImpl;
if (_history == null)
{
throw new ArgumentException("Invalid history in registry");
}
_parent = parent as UndoTransactionImpl;
if (_parent == null && parent != null)
{
throw new ArgumentException("Invalid parent in transaction");
}
Description = description;
_state = UndoTransactionState.Open;
_primitives = new List <ITextUndoPrimitive>();
_mergePolicy = NullMergeUndoTransactionPolicy.Instance;
IsReadOnly = true;
}
public UndoTransactionImpl(ITextUndoHistory history, ITextUndoTransaction parent, string description) {
if (history == null) {
throw new ArgumentNullException(nameof(history));
}
if (string.IsNullOrEmpty(description)) {
throw new ArgumentNullException(nameof(description));
}
_history = history as UndoHistoryImpl;
if (_history == null) {
throw new ArgumentException("Invalid history in registry");
}
_parent = parent as UndoTransactionImpl;
if (_parent == null && parent != null) {
throw new ArgumentException("Invalid parent in transaction");
}
Description = description;
_state = UndoTransactionState.Open;
_primitives = new List<ITextUndoPrimitive>();
_mergePolicy = NullMergeUndoTransactionPolicy.Instance;
IsReadOnly = true;
}
public CatchOperationsFromHistoryForDelegatedPrimitive(UndoHistoryImpl history, DelegatedUndoPrimitiveImpl primitive, DelegatedUndoPrimitiveState state) {
_history = history;
_primitive = primitive;
primitive.State = state;
history.ForwardToUndoOperation(primitive);
}
/// <summary>
///
/// </summary>
/// <param name="context"></param>
/// <param name="keepAlive"></param>
/// <returns></returns>
public ITextUndoHistory RegisterHistory(object context, bool keepAlive) {
if (context == null) {
throw new ArgumentNullException(nameof(context));
}
ITextUndoHistory result;
if (_strongContextMapping.ContainsKey(context)) {
result = _strongContextMapping[context];
if (!keepAlive) {
_strongContextMapping.Remove(context);
_weakContextMapping.Add(new WeakReferenceForDictionaryKey(context), result);
}
} else if (_weakContextMapping.ContainsKey(new WeakReferenceForDictionaryKey(context))) {
result = _weakContextMapping[new WeakReferenceForDictionaryKey(context)];
if (keepAlive) {
_weakContextMapping.Remove(new WeakReferenceForDictionaryKey(context));
_strongContextMapping.Add(context, result);
}
} else {
result = new UndoHistoryImpl(this);
_histories.Add(result, 1);
if (keepAlive) {
_strongContextMapping.Add(context, result);
} else {
_weakContextMapping.Add(new WeakReferenceForDictionaryKey(context), result);
}
}
return result;
}
public CatchOperationsFromHistoryForDelegatedPrimitive(UndoHistoryImpl history, DelegatedUndoPrimitiveImpl primitive, DelegatedUndoPrimitiveState state)
{
_history = history;
_primitive = primitive;
primitive.State = state;
history.ForwardToUndoOperation(primitive);
}
public DelegatedUndoPrimitiveImpl(UndoHistoryImpl history, UndoTransactionImpl parent, UndoableOperationCurried operationCurried) {
RedoOperations = new Stack<UndoableOperationCurried>();
_undoOperations = new Stack<UndoableOperationCurried>();
_parent = parent;
_history = history;
_state = DelegatedUndoPrimitiveState.Inactive;
_undoOperations.Push(operationCurried);
}
public DelegatedUndoPrimitiveImpl(UndoHistoryImpl history, UndoTransactionImpl parent, UndoableOperationCurried operationCurried)
{
RedoOperations = new Stack <UndoableOperationCurried>();
_undoOperations = new Stack <UndoableOperationCurried>();
_parent = parent;
_history = history;
_state = DelegatedUndoPrimitiveState.Inactive;
_undoOperations.Push(operationCurried);
}
/// <summary>
///
/// </summary>
/// <param name="context"></param>
/// <param name="keepAlive"></param>
/// <returns></returns>
public ITextUndoHistory RegisterHistory(object context, bool keepAlive)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
ITextUndoHistory result;
if (_strongContextMapping.ContainsKey(context))
{
result = _strongContextMapping[context];
if (!keepAlive)
{
_strongContextMapping.Remove(context);
_weakContextMapping.Add(new WeakReferenceForDictionaryKey(context), result);
}
}
else if (_weakContextMapping.ContainsKey(new WeakReferenceForDictionaryKey(context)))
{
result = _weakContextMapping[new WeakReferenceForDictionaryKey(context)];
if (keepAlive)
{
_weakContextMapping.Remove(new WeakReferenceForDictionaryKey(context));
_strongContextMapping.Add(context, result);
}
}
else
{
result = new UndoHistoryImpl(this);
_histories.Add(result, 1);
if (keepAlive)
{
_strongContextMapping.Add(context, result);
}
else
{
_weakContextMapping.Add(new WeakReferenceForDictionaryKey(context), result);
}
}
return(result);
}
public UndoTransactionImpl(ITextUndoHistory history, ITextUndoTransaction parent, string description)
{
Check.ArgumentNull(nameof(history), history);
Check.ArgumentStringNullOrEmpty(nameof(description), description);
_history = history as UndoHistoryImpl;
Check.ArgumentNull(nameof(history), _history);
_parent = parent as UndoTransactionImpl;
Check.Argument(nameof(parent), () => _parent != null || parent == null);
Description = description;
_state = UndoTransactionState.Open;
_primitives = new List <ITextUndoPrimitive>();
_mergePolicy = NullMergeUndoTransactionPolicy.Instance;
IsReadOnly = true;
}
