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1 // Copyright 2015 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 COMPONENTS_SESSIONS_CORE_TAB_RESTORE_SERVICE_CLIENT_H_ | |
6 #define COMPONENTS_SESSIONS_CORE_TAB_RESTORE_SERVICE_CLIENT_H_ | |
7 | |
8 #include "base/callback.h" | |
9 #include "base/memory/scoped_vector.h" | |
10 #include "components/sessions/session_id.h" | |
11 | |
12 namespace base { | |
13 class CancelableTaskTracker; | |
14 } | |
15 | |
16 namespace sessions { | |
17 struct SessionWindow; | |
18 } | |
19 | |
20 namespace sessions { | |
21 | |
22 struct SessionWindow; | |
23 | |
24 // Callback from TabRestoreServiceClient::GetLastSession. | |
25 // The second parameter is the id of the window that was last active. | |
26 typedef base::Callback<void(ScopedVector<SessionWindow>, SessionID::id_type)> | |
27 GotLastSessionCallback; | |
sky
2015/09/08 23:44:59
nit: GetLastSessionCallback.
blundell
2015/09/09 10:27:10
Done.
| |
28 | |
29 // A client interface that needs to be supplied to the tab restore service by | |
30 // the embedder. | |
31 class TabRestoreServiceClient { | |
32 public: | |
33 virtual ~TabRestoreServiceClient() {} | |
34 | |
35 // The maximum number of navigation entries in each direction to persist. | |
36 virtual int GetMaxPersistNavigationCount() = 0; | |
sky
2015/09/08 23:44:59
Is there a reason this needs to be a function and
blundell
2015/09/09 10:27:10
Moved it into the component itself. At least at th
| |
37 | |
38 // Returns whether there is a previous session to load. | |
39 virtual bool HasLastSession() = 0; | |
40 | |
41 // Fetches the contents of the last session, notifying the callback when | |
42 // done. If the callback is supplied an empty vector of SessionWindows | |
43 // it means the session could not be restored. | |
44 virtual void GetLastSession(const GotLastSessionCallback& callback, | |
45 base::CancelableTaskTracker* tracker) = 0; | |
46 }; | |
47 | |
48 } // namespace sessions | |
49 | |
50 #endif // COMPONENTS_SESSIONS_CORE_TAB_RESTORE_SERVICE_CLIENT_H_ | |
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