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.
5 #ifndef CHROME_BROWSER_BROWSING_DATA_BROWSING_DATA_QUOTA_HELPER_H_
6 #define CHROME_BROWSER_BROWSING_DATA_BROWSING_DATA_QUOTA_HELPER_H_
11 #include "base/callback.h"
12 #include "base/memory/ref_counted.h"
13 #include "base/message_loop/message_loop_proxy.h"
14 #include "base/sequenced_task_runner_helpers.h"
15 #include "storage/common/quota/quota_types.h"
17 class BrowsingDataQuotaHelper
;
20 struct BrowsingDataQuotaHelperDeleter
{
21 static void Destruct(const BrowsingDataQuotaHelper
* helper
);
24 // This class is an interface class to bridge between Cookies Tree and Unified
25 // Quota System. This class provides a way to get usage and quota information
26 // through the instance.
28 // Call Create to create an instance for a profile and call StartFetching with
29 // a callback to fetch information asynchronously.
31 // Parallel fetching is not allowed, a fetching task should start after end of
32 // previous task. All method of this class should called from UI thread.
33 class BrowsingDataQuotaHelper
34 : public base::RefCountedThreadSafe
<BrowsingDataQuotaHelper
,
35 BrowsingDataQuotaHelperDeleter
> {
37 // QuotaInfo contains host-based quota and usage information for persistent
38 // and temporary storage.
41 explicit QuotaInfo(const std::string
& host
);
42 QuotaInfo(const std::string
& host
,
43 int64 temporary_usage
,
44 int64 persistent_usage
,
45 int64 syncable_usage
);
48 // Certain versions of MSVC 2008 have bad implementations of ADL for nested
49 // classes so they require these operators to be declared here instead of in
50 // the global namespace.
51 bool operator <(const QuotaInfo
& rhs
) const;
52 bool operator ==(const QuotaInfo
& rhs
) const;
55 int64 temporary_usage
;
56 int64 persistent_usage
;
60 typedef std::list
<QuotaInfo
> QuotaInfoArray
;
61 typedef base::Callback
<void(const QuotaInfoArray
&)> FetchResultCallback
;
63 static BrowsingDataQuotaHelper
* Create(Profile
* profile
);
65 virtual void StartFetching(const FetchResultCallback
& callback
) = 0;
67 virtual void RevokeHostQuota(const std::string
& host
) = 0;
70 explicit BrowsingDataQuotaHelper(base::MessageLoopProxy
* io_thread_
);
71 virtual ~BrowsingDataQuotaHelper();
74 friend class base::DeleteHelper
<BrowsingDataQuotaHelper
>;
75 friend struct BrowsingDataQuotaHelperDeleter
;
76 scoped_refptr
<base::MessageLoopProxy
> io_thread_
;
78 DISALLOW_COPY_AND_ASSIGN(BrowsingDataQuotaHelper
);
81 #endif // CHROME_BROWSER_BROWSING_DATA_BROWSING_DATA_QUOTA_HELPER_H_