blob: 5e11b82524e8490ec420a3ca9de66d158ba89da6 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
|
// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef EXTENSIONS_BROWSER_API_STORAGE_STORAGE_FRONTEND_H_
#define EXTENSIONS_BROWSER_API_STORAGE_STORAGE_FRONTEND_H_
#include <map>
#include <string>
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "extensions/browser/api/storage/settings_namespace.h"
#include "extensions/browser/api/storage/settings_observer.h"
#include "extensions/browser/api/storage/settings_storage_factory.h"
#include "extensions/browser/api/storage/value_store_cache.h"
#include "extensions/browser/browser_context_keyed_api_factory.h"
namespace content {
class BrowserContext;
}
namespace extensions {
// The component of the Storage API which runs on the UI thread.
class StorageFrontend : public BrowserContextKeyedAPI {
public:
// Returns the current instance for |context|.
static StorageFrontend* Get(content::BrowserContext* context);
// Creates with a specific |storage_factory|. Caller owns the object.
static StorageFrontend* CreateForTesting(
const scoped_refptr<SettingsStorageFactory>& storage_factory,
content::BrowserContext* context);
// Public so tests can create and delete their own instances.
~StorageFrontend() override;
// Returns the value store cache for |settings_namespace|.
ValueStoreCache* GetValueStoreCache(
settings_namespace::Namespace settings_namespace) const;
// Returns true if |settings_namespace| is a valid namespace.
bool IsStorageEnabled(settings_namespace::Namespace settings_namespace) const;
// Runs |callback| with the storage area of the given |settings_namespace|
// for the |extension|.
void RunWithStorage(scoped_refptr<const Extension> extension,
settings_namespace::Namespace settings_namespace,
const ValueStoreCache::StorageCallback& callback);
// Deletes the settings for the given |extension_id|.
void DeleteStorageSoon(const std::string& extension_id);
// Gets the thread-safe observer list.
scoped_refptr<SettingsObserverList> GetObservers();
void DisableStorageForTesting(
settings_namespace::Namespace settings_namespace);
// BrowserContextKeyedAPI implementation.
static BrowserContextKeyedAPIFactory<StorageFrontend>* GetFactoryInstance();
static const char* service_name();
static const bool kServiceRedirectedInIncognito = true;
static const bool kServiceIsNULLWhileTesting = true;
private:
friend class BrowserContextKeyedAPIFactory<StorageFrontend>;
typedef std::map<settings_namespace::Namespace, ValueStoreCache*> CacheMap;
// Constructor for normal BrowserContextKeyedAPI usage.
explicit StorageFrontend(content::BrowserContext* context);
// Constructor for tests.
StorageFrontend(const scoped_refptr<SettingsStorageFactory>& storage_factory,
content::BrowserContext* context);
void Init(const scoped_refptr<SettingsStorageFactory>& storage_factory);
// The (non-incognito) browser context this Frontend belongs to.
content::BrowserContext* const browser_context_;
// List of observers to settings changes.
scoped_refptr<SettingsObserverList> observers_;
// Observer for |browser_context_|.
scoped_ptr<SettingsObserver> browser_context_observer_;
// Maps a known namespace to its corresponding ValueStoreCache. The caches
// are owned by this object.
CacheMap caches_;
DISALLOW_COPY_AND_ASSIGN(StorageFrontend);
};
} // namespace extensions
#endif // EXTENSIONS_BROWSER_API_STORAGE_STORAGE_FRONTEND_H_
|
