1// Copyright (c) 2012 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#ifndef CHROME_BROWSER_SESSIONS_PERSISTENT_TAB_RESTORE_SERVICE_H_
6#define CHROME_BROWSER_SESSIONS_PERSISTENT_TAB_RESTORE_SERVICE_H_
7
8#include <vector>
9
10#include "base/basictypes.h"
11#include "base/compiler_specific.h"
12#include "base/memory/scoped_ptr.h"
13#include "chrome/browser/sessions/tab_restore_service.h"
14#include "chrome/browser/sessions/tab_restore_service_helper.h"
15
16class Profile;
17
18// Tab restore service that persists data on disk.
19class PersistentTabRestoreService : public TabRestoreService {
20 public:
21  // Does not take ownership of |time_factory|.
22  PersistentTabRestoreService(Profile* profile,
23                              TimeFactory* time_factory);
24
25  virtual ~PersistentTabRestoreService();
26
27  // TabRestoreService:
28  virtual void AddObserver(TabRestoreServiceObserver* observer) OVERRIDE;
29  virtual void RemoveObserver(TabRestoreServiceObserver* observer) OVERRIDE;
30  virtual void CreateHistoricalTab(content::WebContents* contents,
31                                   int index) OVERRIDE;
32  virtual void BrowserClosing(TabRestoreServiceDelegate* delegate) OVERRIDE;
33  virtual void BrowserClosed(TabRestoreServiceDelegate* delegate) OVERRIDE;
34  virtual void ClearEntries() OVERRIDE;
35  virtual const Entries& entries() const OVERRIDE;
36  virtual std::vector<content::WebContents*> RestoreMostRecentEntry(
37      TabRestoreServiceDelegate* delegate,
38      chrome::HostDesktopType host_desktop_type) OVERRIDE;
39  virtual Tab* RemoveTabEntryById(SessionID::id_type id) OVERRIDE;
40  virtual std::vector<content::WebContents*> RestoreEntryById(
41      TabRestoreServiceDelegate* delegate,
42      SessionID::id_type id,
43      chrome::HostDesktopType host_desktop_type,
44      WindowOpenDisposition disposition) OVERRIDE;
45  virtual void LoadTabsFromLastSession() OVERRIDE;
46  virtual bool IsLoaded() const OVERRIDE;
47  virtual void DeleteLastSession() OVERRIDE;
48  virtual void Shutdown() OVERRIDE;
49
50 private:
51  friend class PersistentTabRestoreServiceTest;
52
53  class Delegate;
54
55  // Exposed for testing.
56  Entries* mutable_entries();
57  void PruneEntries();
58
59  scoped_ptr<Delegate> delegate_;
60  TabRestoreServiceHelper helper_;
61
62  DISALLOW_COPY_AND_ASSIGN(PersistentTabRestoreService);
63};
64
65#endif  // CHROME_BROWSER_SESSIONS_PERSISTENT_TAB_RESTORE_SERVICE_H_
66