storage/browser/database/database_quota_client.h

   1 // Copyright (c) 2011 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 STORAGE_BROWSER_DATABASE_DATABASE_QUOTA_CLIENT_H_
   6 #define STORAGE_BROWSER_DATABASE_DATABASE_QUOTA_CLIENT_H_
   7
   8 #include <set>
   9 #include <string>
  10
  11 #include "base/memory/ref_counted.h"
  12 #include "base/message_loop/message_loop_proxy.h"
  13 #include "storage/browser/quota/quota_client.h"
  14 #include "storage/browser/storage_browser_export.h"
  15 #include "storage/common/quota/quota_types.h"
  16
  17 namespace storage {
  18
  19 class DatabaseTracker;
  20
  21 // A QuotaClient implementation to integrate WebSQLDatabases
  22 // with the quota  management system. This interface is used
  23 // on the IO thread by the quota manager.
  24 class STORAGE_EXPORT_PRIVATE DatabaseQuotaClient
  25     : public storage::QuotaClient {
  26  public:
  27   DatabaseQuotaClient(
  28       base::MessageLoopProxy* tracker_thread,
  29       DatabaseTracker* tracker);
  30   virtual ~DatabaseQuotaClient();
  31
  32   // QuotaClient method overrides
  33   virtual ID id() const OVERRIDE;
  34   virtual void OnQuotaManagerDestroyed() OVERRIDE;
  35   virtual void GetOriginUsage(const GURL& origin_url,
  36                               storage::StorageType type,
  37                               const GetUsageCallback& callback) OVERRIDE;
  38   virtual void GetOriginsForType(storage::StorageType type,
  39                                  const GetOriginsCallback& callback) OVERRIDE;
  40   virtual void GetOriginsForHost(storage::StorageType type,
  41                                  const std::string& host,
  42                                  const GetOriginsCallback& callback) OVERRIDE;
  43   virtual void DeleteOriginData(const GURL& origin,
  44                                 storage::StorageType type,
  45                                 const DeletionCallback& callback) OVERRIDE;
  46   virtual bool DoesSupport(storage::StorageType type) const OVERRIDE;
  47
  48  private:
  49   scoped_refptr<base::MessageLoopProxy> db_tracker_thread_;
  50   scoped_refptr<DatabaseTracker> db_tracker_;  // only used on its thread
  51
  52   DISALLOW_COPY_AND_ASSIGN(DatabaseQuotaClient);
  53 };
  54
  55 }  // namespace storage
  56
  57 #endif  // STORAGE_BROWSER_DATABASE_DATABASE_QUOTA_CLIENT_H_