1/*
2 Copyright (C) 2007 Staikos Computing Services Inc.
3 Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies)
4 Copyright (C) 2012 Samsung Electronics
5
6 This library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Library General Public
8 License as published by the Free Software Foundation; either
9 version 2 of the License, or (at your option) any later version.
10
11 This library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Library General Public License for more details.
15
16 You should have received a copy of the GNU Library General Public License
17 along with this library; see the file COPYING.LIB. If not, write to
18 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
19 Boston, MA 02110-1301, USA.
20*/
21
22#include "config.h"
23#include "DefaultUndoController.h"
24
25#include "UndoOrRedo.h"
26#include "WebEditCommandProxy.h"
27#include <wtf/RefPtr.h>
28
29namespace WebKit {
30
31void DefaultUndoController::registerEditCommand(Ref<WebEditCommandProxy>&& command, UndoOrRedo undoOrRedo)
32{
33 if (undoOrRedo == UndoOrRedo::Undo)
34 m_undoStack.append(WTFMove(command));
35 else
36 m_redoStack.append(WTFMove(command));
37}
38
39void DefaultUndoController::clearAllEditCommands()
40{
41 m_undoStack.clear();
42 m_redoStack.clear();
43}
44
45bool DefaultUndoController::canUndoRedo(UndoOrRedo undoOrRedo)
46{
47 if (undoOrRedo == UndoOrRedo::Undo)
48 return !m_undoStack.isEmpty();
49
50 return !m_redoStack.isEmpty();
51}
52
53void DefaultUndoController::executeUndoRedo(UndoOrRedo undoOrRedo)
54{
55 RefPtr<WebEditCommandProxy> command;
56 if (undoOrRedo == UndoOrRedo::Undo) {
57 command = m_undoStack.last();
58 m_undoStack.removeLast();
59 command->unapply();
60 } else {
61 command = m_redoStack.last();
62 m_redoStack.removeLast();
63 command->reapply();
64 }
65}
66
67} // namespace WebKit
68