content/browser/worker_host/worker_storage_partition.h

   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 CONTENT_BROWSER_WORKER_HOST_WORKER_STORAGE_PARTITION_H_
   6 #define CONTENT_BROWSER_WORKER_HOST_WORKER_STORAGE_PARTITION_H_
   7
   8 #include "base/memory/ref_counted.h"
   9
  10 namespace quota {
  11 class QuotaManager;
  12 }
  13
  14 namespace fileapi {
  15 class FileSystemContext;
  16 }  // namespace fileapi
  17
  18 namespace net {
  19 class URLRequestContextGetter;
  20 }
  21
  22 namespace webkit_database {
  23 class DatabaseTracker;
  24 }  // namespace webkit_database
  25
  26 namespace content {
  27 class ChromeAppCacheService;
  28 class IndexedDBContextImpl;
  29
  30 // Contains the data from StoragePartition for use by Worker APIs.
  31 //
  32 // StoragePartition meant for the UI so we can't use it directly in many
  33 // Worker APIs that run on the IO thread. While we could make it RefCounted,
  34 // the Worker system is the only place that really needs access on the IO
  35 // thread. Instead of changing the lifetime semantics of StoragePartition,
  36 // we just create a parallel struct here to simplify the APIs of various
  37 // methods in WorkerServiceImpl.
  38 //
  39 // This class is effectively a struct, but we make it a class because we want to
  40 // define copy constructors, assignment operators, and an Equals() function for
  41 // it which makes it look awkward as a struct.
  42 class WorkerStoragePartition {
  43  public:
  44   WorkerStoragePartition(
  45       net::URLRequestContextGetter* url_request_context,
  46       net::URLRequestContextGetter* media_url_request_context,
  47       ChromeAppCacheService* appcache_service,
  48       quota::QuotaManager* quota_manager,
  49       fileapi::FileSystemContext* filesystem_context,
  50       webkit_database::DatabaseTracker* database_tracker,
  51       IndexedDBContextImpl* indexed_db_context);
  52   ~WorkerStoragePartition();
  53
  54   // Declaring so these don't get inlined which has the unfortunate effect of
  55   // requiring all including classes to have the full definition of every member
  56   // type.
  57   WorkerStoragePartition(const WorkerStoragePartition& other);
  58   const WorkerStoragePartition& operator=(const WorkerStoragePartition& rhs);
  59
  60   bool Equals(const WorkerStoragePartition& other) const;
  61
  62   net::URLRequestContextGetter* url_request_context() const {
  63     return url_request_context_.get();
  64   }
  65
  66   net::URLRequestContextGetter* media_url_request_context() const {
  67     return media_url_request_context_.get();
  68   }
  69
  70   ChromeAppCacheService* appcache_service() const {
  71     return appcache_service_.get();
  72   }
  73
  74   quota::QuotaManager* quota_manager() const {
  75     return quota_manager_.get();
  76   }
  77
  78   fileapi::FileSystemContext* filesystem_context() const {
  79     return filesystem_context_.get();
  80   }
  81
  82   webkit_database::DatabaseTracker* database_tracker() const {
  83     return database_tracker_.get();
  84   }
  85
  86   IndexedDBContextImpl* indexed_db_context() const {
  87     return indexed_db_context_.get();
  88   }
  89
  90  private:
  91   void Copy(const WorkerStoragePartition& other);
  92
  93   scoped_refptr<net::URLRequestContextGetter> url_request_context_;
  94   scoped_refptr<net::URLRequestContextGetter> media_url_request_context_;
  95   scoped_refptr<ChromeAppCacheService> appcache_service_;
  96   scoped_refptr<quota::QuotaManager> quota_manager_;
  97   scoped_refptr<fileapi::FileSystemContext> filesystem_context_;
  98   scoped_refptr<webkit_database::DatabaseTracker> database_tracker_;
  99   scoped_refptr<IndexedDBContextImpl> indexed_db_context_;
 100 };
 101
 102 }  // namespace content
 103
 104 #endif  // CONTENT_BROWSER_WORKER_HOST_WORKER_STORAGE_PARTITION_H_