worker_storage_partition.h revision 5821806d5e7f356e8fa4b058a389a808ea183019 
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
10namespace fileapi {
11class FileSystemContext;
12}  // namespace fileapi
13
14namespace net {
15class URLRequestContextGetter;
16}
17
18namespace webkit_database {
19class DatabaseTracker;
20}  // namespace webkit_database
21
22namespace content {
23class ChromeAppCacheService;
24class IndexedDBContextImpl;
25
26// Contains the data from StoragePartition for use by Worker APIs.
27//
28// StoragePartition meant for the UI so we can't use it directly in many
29// Worker APIs that run on the IO thread. While we could make it RefCounted,
30// the Worker system is the only place that really needs access on the IO
31// thread. Instead of changing the lifetime semantics of StoragePartition,
32// we just create a parallel struct here to simplify the APIs of various
33// methods in WorkerServiceImpl.
34//
35// This class is effectively a struct, but we make it a class because we want to
36// define copy constructors, assignment operators, and an Equals() function for
37// it which makes it look awkward as a struct.
38class WorkerStoragePartition {
39 public:
40  WorkerStoragePartition(
41      net::URLRequestContextGetter* url_request_context,
42      net::URLRequestContextGetter* media_url_request_context,
43      ChromeAppCacheService* appcache_service,
44      fileapi::FileSystemContext* filesystem_context,
45      webkit_database::DatabaseTracker* database_tracker,
46      IndexedDBContextImpl* indexed_db_context);
47  ~WorkerStoragePartition();
48
49  // Declaring so these don't get inlined which has the unfortunate effect of
50  // requiring all including classes to have the full definition of every member
51  // type.
52  WorkerStoragePartition(const WorkerStoragePartition& other);
53  const WorkerStoragePartition& operator=(const WorkerStoragePartition& rhs);
54
55  bool Equals(const WorkerStoragePartition& other) const;
56
57  net::URLRequestContextGetter* url_request_context() const {
58    return url_request_context_.get();
59  }
60
61  net::URLRequestContextGetter* media_url_request_context() const {
62    return media_url_request_context_.get();
63  }
64
65  ChromeAppCacheService* appcache_service() const {
66    return appcache_service_.get();
67  }
68
69  fileapi::FileSystemContext* filesystem_context() const {
70    return filesystem_context_.get();
71  }
72
73  webkit_database::DatabaseTracker* database_tracker() const {
74    return database_tracker_.get();
75  }
76
77  IndexedDBContextImpl* indexed_db_context() const {
78    return indexed_db_context_.get();
79  }
80
81 private:
82  void Copy(const WorkerStoragePartition& other);
83
84  scoped_refptr<net::URLRequestContextGetter> url_request_context_;
85  scoped_refptr<net::URLRequestContextGetter> media_url_request_context_;
86  scoped_refptr<ChromeAppCacheService> appcache_service_;
87  scoped_refptr<fileapi::FileSystemContext> filesystem_context_;
88  scoped_refptr<webkit_database::DatabaseTracker> database_tracker_;
89  scoped_refptr<IndexedDBContextImpl> indexed_db_context_;
90};
91
92}  // namespace content
93
94#endif  // CONTENT_BROWSER_WORKER_HOST_WORKER_STORAGE_PARTITION_H_
95