From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 21:33:14 +0200 Subject: Adding upstream version 115.7.0esr. Signed-off-by: Daniel Baumann --- editor/txmgr/TransactionStack.h | 44 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 editor/txmgr/TransactionStack.h (limited to 'editor/txmgr/TransactionStack.h') diff --git a/editor/txmgr/TransactionStack.h b/editor/txmgr/TransactionStack.h new file mode 100644 index 0000000000..74e8aebec8 --- /dev/null +++ b/editor/txmgr/TransactionStack.h @@ -0,0 +1,44 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef mozilla_TransactionStack_h +#define mozilla_TransactionStack_h + +#include "mozilla/AlreadyAddRefed.h" +#include "nsDeque.h" + +class nsCycleCollectionTraversalCallback; + +namespace mozilla { + +class TransactionItem; + +class TransactionStack : private nsRefPtrDeque { + public: + enum Type { FOR_UNDO, FOR_REDO }; + + explicit TransactionStack(Type aType); + ~TransactionStack(); + + void Push(TransactionItem* aTransactionItem); + void Push(already_AddRefed aTransactionItem); + already_AddRefed Pop(); + already_AddRefed PopBottom(); + already_AddRefed Peek() const; + already_AddRefed GetItemAt(size_t aIndex) const; + void Clear(); + size_t GetSize() const { return nsRefPtrDeque::GetSize(); } + bool IsEmpty() const { return GetSize() == 0; } + + void DoUnlink() { Clear(); } + void DoTraverse(nsCycleCollectionTraversalCallback& cb); + + private: + const Type mType; +}; + +} // namespace mozilla + +#endif // mozilla_TransactionStack_h -- cgit v1.2.3