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Side by Side Diff: webkit/dom_storage/dom_storage_cached_area.h

Issue 13219005: Replace string16 with base::string16 in src/webkit (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Created 7 years, 9 months ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 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 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 #ifndef WEBKIT_DOM_STORAGE_DOM_STORAGE_CACHED_AREA_H_ 5 #ifndef WEBKIT_DOM_STORAGE_DOM_STORAGE_CACHED_AREA_H_
6 #define WEBKIT_DOM_STORAGE_DOM_STORAGE_CACHED_AREA_H_ 6 #define WEBKIT_DOM_STORAGE_DOM_STORAGE_CACHED_AREA_H_
7 7
8 #include <map> 8 #include <map>
9 9
10 #include "base/memory/ref_counted.h" 10 #include "base/memory/ref_counted.h"
11 #include "base/memory/weak_ptr.h" 11 #include "base/memory/weak_ptr.h"
12 #include "base/nullable_string16.h" 12 #include "base/nullable_base::string16.h"
13 #include "googleurl/src/gurl.h" 13 #include "googleurl/src/gurl.h"
14 #include "webkit/storage/webkit_storage_export.h" 14 #include "webkit/storage/webkit_storage_export.h"
15 15
16 namespace dom_storage { 16 namespace dom_storage {
17 17
18 class DomStorageMap; 18 class DomStorageMap;
19 class DomStorageProxy; 19 class DomStorageProxy;
20 20
21 // Unlike the other classes in the dom_storage library, this one is intended 21 // Unlike the other classes in the dom_storage library, this one is intended
22 // for use in renderer processes. It maintains a complete cache of the 22 // for use in renderer processes. It maintains a complete cache of the
23 // origin's Map of key/value pairs for fast access. The cache is primed on 23 // origin's Map of key/value pairs for fast access. The cache is primed on
24 // first access and changes are written to the backend thru the |proxy|. 24 // first access and changes are written to the backend thru the |proxy|.
25 // Mutations originating in other processes are applied to the cache via 25 // Mutations originating in other processes are applied to the cache via
26 // the ApplyMutation method. 26 // the ApplyMutation method.
27 class WEBKIT_STORAGE_EXPORT DomStorageCachedArea : 27 class WEBKIT_STORAGE_EXPORT DomStorageCachedArea :
28 public base::RefCounted<DomStorageCachedArea> { 28 public base::RefCounted<DomStorageCachedArea> {
29 public: 29 public:
30 DomStorageCachedArea(int64 namespace_id, const GURL& origin, 30 DomStorageCachedArea(int64 namespace_id, const GURL& origin,
31 DomStorageProxy* proxy); 31 DomStorageProxy* proxy);
32 32
33 int64 namespace_id() const { return namespace_id_; } 33 int64 namespace_id() const { return namespace_id_; }
34 const GURL& origin() const { return origin_; } 34 const GURL& origin() const { return origin_; }
35 35
36 unsigned GetLength(int connection_id); 36 unsigned GetLength(int connection_id);
37 NullableString16 GetKey(int connection_id, unsigned index); 37 NullableString16 GetKey(int connection_id, unsigned index);
38 NullableString16 GetItem(int connection_id, const string16& key); 38 NullableString16 GetItem(int connection_id, const base::string16& key);
39 bool SetItem(int connection_id, const string16& key, const string16& value, 39 bool SetItem(int connection_id,
40 const base::string16& key,
41 const base::string16& value,
40 const GURL& page_url); 42 const GURL& page_url);
41 void RemoveItem(int connection_id, const string16& key, 43 void RemoveItem(int connection_id, const base::string16& key,
42 const GURL& page_url); 44 const GURL& page_url);
43 void Clear(int connection_id, const GURL& page_url); 45 void Clear(int connection_id, const GURL& page_url);
44 46
45 void ApplyMutation(const NullableString16& key, 47 void ApplyMutation(const NullableString16& key,
46 const NullableString16& new_value); 48 const NullableString16& new_value);
47 49
48 size_t MemoryBytesUsedByCache() const; 50 size_t MemoryBytesUsedByCache() const;
49 51
50 private: 52 private:
51 friend class DomStorageCachedAreaTest; 53 friend class DomStorageCachedAreaTest;
52 friend class base::RefCounted<DomStorageCachedArea>; 54 friend class base::RefCounted<DomStorageCachedArea>;
53 ~DomStorageCachedArea(); 55 ~DomStorageCachedArea();
54 56
55 // Primes the cache, loading all values for the area. 57 // Primes the cache, loading all values for the area.
56 void Prime(int connection_id); 58 void Prime(int connection_id);
57 void PrimeIfNeeded(int connection_id) { 59 void PrimeIfNeeded(int connection_id) {
58 if (!map_) 60 if (!map_)
59 Prime(connection_id); 61 Prime(connection_id);
60 } 62 }
61 63
62 // Resets the object back to its newly constructed state. 64 // Resets the object back to its newly constructed state.
63 void Reset(); 65 void Reset();
64 66
65 // Async completion callbacks for proxied operations. 67 // Async completion callbacks for proxied operations.
66 // These are used to maintain cache consistency by preventing 68 // These are used to maintain cache consistency by preventing
67 // mutation events from other processes from overwriting local 69 // mutation events from other processes from overwriting local
68 // changes made after the mutation. 70 // changes made after the mutation.
69 void OnLoadComplete(bool success); 71 void OnLoadComplete(bool success);
70 void OnSetItemComplete(const string16& key, bool success); 72 void OnSetItemComplete(const base::string16& key, bool success);
71 void OnClearComplete(bool success); 73 void OnClearComplete(bool success);
72 void OnRemoveItemComplete(const string16& key, bool success); 74 void OnRemoveItemComplete(const base::string16& key, bool success);
73 75
74 bool should_ignore_key_mutation(const string16& key) const { 76 bool should_ignore_key_mutation(const base::string16& key) const {
75 return ignore_key_mutations_.find(key) != ignore_key_mutations_.end(); 77 return ignore_key_mutations_.find(key) != ignore_key_mutations_.end();
76 } 78 }
77 79
78 bool ignore_all_mutations_; 80 bool ignore_all_mutations_;
79 std::map<string16, int> ignore_key_mutations_; 81 std::map<base::string16, int> ignore_key_mutations_;
80 82
81 int64 namespace_id_; 83 int64 namespace_id_;
82 GURL origin_; 84 GURL origin_;
83 scoped_refptr<DomStorageMap> map_; 85 scoped_refptr<DomStorageMap> map_;
84 scoped_refptr<DomStorageProxy> proxy_; 86 scoped_refptr<DomStorageProxy> proxy_;
85 base::WeakPtrFactory<DomStorageCachedArea> weak_factory_; 87 base::WeakPtrFactory<DomStorageCachedArea> weak_factory_;
86 }; 88 };
87 89
88 } // namespace dom_storage 90 } // namespace dom_storage
89 91
90 #endif // WEBKIT_DOM_STORAGE_DOM_STORAGE_CACHED_AREA_H_ 92 #endif // WEBKIT_DOM_STORAGE_DOM_STORAGE_CACHED_AREA_H_
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