1 files changed, 66 insertions, 0 deletions
diff --git a/Source/WebKit2/UIProcess/DefaultUndoController.cpp b/Source/WebKit2/UIProcess/DefaultUndoController.cpp
new file mode 100644
index 000000000..a2df76cd8
--- /dev/null
+++ b/Source/WebKit2/UIProcess/DefaultUndoController.cpp
@@ -0,0 +1,66 @@
+/*
+    Copyright (C) 2007 Staikos Computing Services Inc.
+    Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies)
+    Copyright (C) 2012 Samsung Electronics
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public License
+    along with this library; see the file COPYING.LIB.  If not, write to
+    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+    Boston, MA 02110-1301, USA.
+*/
+
+#include "config.h"
+#include "DefaultUndoController.h"
+
+#include "WebEditCommandProxy.h"
+#include <wtf/RefPtr.h>
+
+namespace WebKit {
+
+void DefaultUndoController::registerEditCommand(PassRefPtr<WebEditCommandProxy> command, WebPageProxy::UndoOrRedo undoOrRedo)
+{
+    if (undoOrRedo == WebPageProxy::Undo)
+        m_undoStack.append(command);
+    else
+        m_redoStack.append(command);
+}
+
+void DefaultUndoController::clearAllEditCommands()
+{
+    m_undoStack.clear();
+    m_redoStack.clear();
+}
+
+bool DefaultUndoController::canUndoRedo(WebPageProxy::UndoOrRedo undoOrRedo)
+{
+    if (undoOrRedo == WebPageProxy::Undo)
+        return !m_undoStack.isEmpty();
+
+    return !m_redoStack.isEmpty();
+}
+
+void DefaultUndoController::executeUndoRedo(WebPageProxy::UndoOrRedo undoOrRedo)
+{
+    RefPtr<WebEditCommandProxy> command;
+    if (undoOrRedo == WebPageProxy::Undo) {
+        command = m_undoStack.last();
+        m_undoStack.removeLast();
+        command->unapply();
+    } else {
+        command = m_redoStack.last();
+        m_redoStack.removeLast();
+        command->reapply();
+    }
+}
+
+} // namespace WebKit