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1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #include "chrome/browser/undo/bookmark_undo_utils.h"
6 
7 #include "chrome/browser/undo/bookmark_undo_service.h"
8 #include "chrome/browser/undo/bookmark_undo_service_factory.h"
9 #include "chrome/browser/undo/undo_manager.h"
10 
11 namespace {
12 
13 // Utility funciton to safely return an UndoManager if available.
GetUndoManager(Profile * profile)14 UndoManager* GetUndoManager(Profile* profile) {
15   BookmarkUndoService* undo_service = profile ?
16       BookmarkUndoServiceFactory::GetForProfile(profile) : NULL;
17   return undo_service ? undo_service->undo_manager() : NULL;
18 }
19 
20 }  // namespace
21 
22 // ScopedSuspendBookmarkUndo --------------------------------------------------
23 
ScopedSuspendBookmarkUndo(Profile * profile)24 ScopedSuspendBookmarkUndo::ScopedSuspendBookmarkUndo(Profile* profile)
25     : profile_(profile) {
26   UndoManager* undo_manager = GetUndoManager(profile_);
27   if (undo_manager)
28     undo_manager->SuspendUndoTracking();
29 }
30 
~ScopedSuspendBookmarkUndo()31 ScopedSuspendBookmarkUndo::~ScopedSuspendBookmarkUndo() {
32   UndoManager *undo_manager = GetUndoManager(profile_);
33   if (undo_manager)
34     undo_manager->ResumeUndoTracking();
35 }
36