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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // Chromium settings and storage represent user-selected preferences and | 5 // Chromium settings and storage represent user-selected preferences and |
6 // information and MUST not be extracted, overwritten or modified except | 6 // information and MUST not be extracted, overwritten or modified except |
7 // through Chromium defined APIs. | 7 // through Chromium defined APIs. |
8 | 8 |
9 #ifndef COMPONENTS_WEBDATA_COMMON_WEB_DATABASE_SERVICE_H_ | 9 #ifndef COMPONENTS_WEBDATA_COMMON_WEB_DATABASE_SERVICE_H_ |
10 #define COMPONENTS_WEBDATA_COMMON_WEB_DATABASE_SERVICE_H_ | 10 #define COMPONENTS_WEBDATA_COMMON_WEB_DATABASE_SERVICE_H_ |
11 | 11 |
12 #include "base/basictypes.h" | 12 #include "base/basictypes.h" |
13 #include "base/callback_forward.h" | 13 #include "base/callback_forward.h" |
14 #include "base/compiler_specific.h" | 14 #include "base/compiler_specific.h" |
15 #include "base/files/file_path.h" | 15 #include "base/files/file_path.h" |
16 #include "base/memory/ref_counted.h" | 16 #include "base/memory/ref_counted.h" |
| 17 #include "base/memory/ref_counted_delete_on_message_loop.h" |
17 #include "base/memory/scoped_ptr.h" | 18 #include "base/memory/scoped_ptr.h" |
18 #include "base/memory/weak_ptr.h" | 19 #include "base/memory/weak_ptr.h" |
| 20 #include "base/message_loop/message_loop_proxy.h" |
19 #include "base/observer_list.h" | 21 #include "base/observer_list.h" |
20 #include "components/webdata/common/web_data_service_base.h" | 22 #include "components/webdata/common/web_data_service_base.h" |
21 #include "components/webdata/common/web_database.h" | 23 #include "components/webdata/common/web_database.h" |
22 #include "components/webdata/common/webdata_export.h" | 24 #include "components/webdata/common/webdata_export.h" |
23 | 25 |
24 class WebDataServiceBackend; | 26 class WebDataServiceBackend; |
25 class WebDataRequestManager; | 27 class WebDataRequestManager; |
26 | 28 |
27 namespace content { | 29 namespace content { |
28 class BrowserContext; | 30 class BrowserContext; |
29 } | 31 } |
30 | 32 |
31 namespace tracked_objects { | 33 namespace tracked_objects { |
32 class Location; | 34 class Location; |
33 } | 35 } |
34 | 36 |
35 class WDTypedResult; | 37 class WDTypedResult; |
36 class WebDataServiceConsumer; | 38 class WebDataServiceConsumer; |
37 | 39 |
38 | 40 |
39 //////////////////////////////////////////////////////////////////////////////// | 41 //////////////////////////////////////////////////////////////////////////////// |
40 // | 42 // |
41 // WebDatabaseService defines the interface to a generic data repository | 43 // WebDatabaseService defines the interface to a generic data repository |
42 // responsible for controlling access to the web database (metadata associated | 44 // responsible for controlling access to the web database (metadata associated |
43 // with web pages). | 45 // with web pages). |
44 // | 46 // |
45 //////////////////////////////////////////////////////////////////////////////// | 47 //////////////////////////////////////////////////////////////////////////////// |
46 | 48 |
47 class WEBDATA_EXPORT WebDatabaseService | 49 class WEBDATA_EXPORT WebDatabaseService |
48 : public base::RefCountedThreadSafe< | 50 : public base::RefCountedDeleteOnMessageLoop<WebDatabaseService> { |
49 WebDatabaseService, | |
50 content::BrowserThread::DeleteOnUIThread> { | |
51 public: | 51 public: |
52 typedef base::Callback<scoped_ptr<WDTypedResult>(WebDatabase*)> ReadTask; | 52 typedef base::Callback<scoped_ptr<WDTypedResult>(WebDatabase*)> ReadTask; |
53 typedef base::Callback<WebDatabase::State(WebDatabase*)> WriteTask; | 53 typedef base::Callback<WebDatabase::State(WebDatabase*)> WriteTask; |
54 | 54 |
55 // Takes the path to the WebDatabase file. | 55 // Takes the path to the WebDatabase file. |
56 explicit WebDatabaseService(const base::FilePath& path); | 56 WebDatabaseService(const base::FilePath& path, |
| 57 const scoped_refptr<base::MessageLoopProxy>& ui_thread); |
57 | 58 |
58 // Adds |table| as a WebDatabaseTable that will participate in | 59 // Adds |table| as a WebDatabaseTable that will participate in |
59 // managing the database, transferring ownership. All calls to this | 60 // managing the database, transferring ownership. All calls to this |
60 // method must be made before |LoadDatabase| is called. | 61 // method must be made before |LoadDatabase| is called. |
61 virtual void AddTable(scoped_ptr<WebDatabaseTable> table); | 62 virtual void AddTable(scoped_ptr<WebDatabaseTable> table); |
62 | 63 |
63 // Initializes the web database service. | 64 // Initializes the web database service. |
64 virtual void LoadDatabase(); | 65 virtual void LoadDatabase(); |
65 | 66 |
66 // Unloads the database without actually shutting down the service. This can | 67 // Unloads the database without actually shutting down the service. This can |
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105 // (following a database load failure), then cleared. | 106 // (following a database load failure), then cleared. |
106 // Note: if the database load is already complete, then the callback will NOT | 107 // Note: if the database load is already complete, then the callback will NOT |
107 // be stored or called. | 108 // be stored or called. |
108 void RegisterDBErrorCallback( | 109 void RegisterDBErrorCallback( |
109 const base::Callback<void(sql::InitStatus)>& callback); | 110 const base::Callback<void(sql::InitStatus)>& callback); |
110 | 111 |
111 bool db_loaded() { return db_loaded_; }; | 112 bool db_loaded() { return db_loaded_; }; |
112 | 113 |
113 private: | 114 private: |
114 class BackendDelegate; | 115 class BackendDelegate; |
115 friend struct content::BrowserThread::DeleteOnThread< | 116 friend class BackendDelegate; |
116 content::BrowserThread::UI>; | 117 friend class base::RefCountedDeleteOnMessageLoop<WebDatabaseService>; |
117 friend class base::DeleteHelper<WebDatabaseService>; | 118 friend class base::DeleteHelper<WebDatabaseService>; |
118 // We have to friend RCTS<> so WIN shared-lib build is happy (crbug/112250). | |
119 friend class base::RefCountedThreadSafe<WebDatabaseService, | |
120 content::BrowserThread::DeleteOnUIThread>; | |
121 friend class BackendDelegate; | |
122 | 119 |
123 virtual ~WebDatabaseService(); | 120 virtual ~WebDatabaseService(); |
124 | 121 |
125 void OnDatabaseLoadDone(sql::InitStatus status); | 122 void OnDatabaseLoadDone(sql::InitStatus status); |
126 | 123 |
127 base::FilePath path_; | 124 base::FilePath path_; |
128 | 125 |
129 // The primary owner is |WebDatabaseService| but is refcounted because | 126 // The primary owner is |WebDatabaseService| but is refcounted because |
130 // PostTask on DB thread may outlive us. | 127 // PostTask on DB thread may outlive us. |
131 scoped_refptr<WebDataServiceBackend> wds_backend_; | 128 scoped_refptr<WebDataServiceBackend> wds_backend_; |
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144 LoadedCallbacks loaded_callbacks_; | 141 LoadedCallbacks loaded_callbacks_; |
145 | 142 |
146 // Callbacks to be called if the DB has failed to load. | 143 // Callbacks to be called if the DB has failed to load. |
147 ErrorCallbacks error_callbacks_; | 144 ErrorCallbacks error_callbacks_; |
148 | 145 |
149 // True if the WebDatabase has loaded. | 146 // True if the WebDatabase has loaded. |
150 bool db_loaded_; | 147 bool db_loaded_; |
151 }; | 148 }; |
152 | 149 |
153 #endif // COMPONENTS_WEBDATA_COMMON_WEB_DATABASE_SERVICE_H_ | 150 #endif // COMPONENTS_WEBDATA_COMMON_WEB_DATABASE_SERVICE_H_ |
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