Index: chrome/browser/extensions/extension_settings.h |
diff --git a/chrome/browser/extensions/extension_settings.h b/chrome/browser/extensions/extension_settings.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..c8bb296f43a42ffe0a4a18055eda5d7176a11051 |
--- /dev/null |
+++ b/chrome/browser/extensions/extension_settings.h |
@@ -0,0 +1,55 @@ |
+// Copyright (c) 2011 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 CHROME_BROWSER_EXTENSIONS_EXTENSION_SETTINGS_H_ |
+#define CHROME_BROWSER_EXTENSIONS_EXTENSION_SETTINGS_H_ |
+#pragma once |
+ |
+#include "base/file_path.h" |
+#include "chrome/browser/extensions/extension_settings_storage.h" |
Mihai Parparita -not on Chrome
2011/06/21 23:40:11
Can you just forward declare ExtensionSettingsStor
not at google - send to devlin
2011/06/22 09:40:38
Done.
|
+#include "third_party/leveldb/include/leveldb/db.h" |
Mihai Parparita -not on Chrome
2011/06/21 23:40:11
Doesn't seem like you need this include at all.
not at google - send to devlin
2011/06/22 09:40:38
Done.
|
+ |
+// Manages ExtensionSettingsStorage objects for extensions. |
+class ExtensionSettings { |
+ public: |
+ // File path is the base of the extension settings directory. |
+ // The databases will be at base_path/extension_id. |
+ explicit ExtensionSettings(const FilePath& base_path); |
+ ~ExtensionSettings(); |
+ |
+ // Callback for the GetStorage() methods. The callback will always be Run() |
+ // from a PostMessage to the UI thread, even if the storage area is cached. |
+ class Callback { |
+ public: |
+ virtual ~Callback() {} |
+ |
+ // Called when the storage area is available. Ownership of the object |
+ // remains with the ExtensionSettings object. |
+ virtual void Run(ExtensionSettingsStorage* storage) = 0; |
+ }; |
+ |
+ // Gets the storage area for a given extension. |
+ // By default this will be of type LEVELDB|CACHED, but on failure to create |
+ // a leveldb instance will fall back to NOOP|CACHED. |
Mihai Parparita -not on Chrome
2011/06/21 23:40:11
I'm not sure that the fallback behavior is a great
not at google - send to devlin
2011/06/22 09:40:38
What should the failure behaviour be then? Just e
|
+ // Callback objects will be deleted when used. |
+ void GetStorage(const std::string& extension_id, Callback* callback); |
+ |
+ // Gets a storage area for a given extension, with a specific type, either |
+ // NOOP, LEVELDB, NOOP|CACHED, or LEVELDB|CACHED. |
+ // Use this for testing; if the given type fails to be created (e.g. if |
+ // leveldb creation fails) then a DCHECK will fail. |
+ // Callback objects will be deleted when used. |
+ void GetStorageForTesting(int type, const std::string& extension_id, |
+ Callback* callback); |
+ |
+ private: |
Mihai Parparita -not on Chrome
2011/06/21 23:40:11
Should add DISALLOW_COPY_AND_ASSIGN.
not at google - send to devlin
2011/06/22 09:40:38
Done.
|
+ // Attempts to get and callback with an existing storage area. Returns |
+ // whether storage existed and the callback run. |
+ bool GetExistingStorage(const std::string& extension_id, Callback* callback); |
+ |
+ const FilePath base_path_; |
+ std::map<std::string, ExtensionSettingsStorage*> storage_objs_; |
+}; |
+ |
+#endif // CHROME_BROWSER_EXTENSIONS_EXTENSION_SETTINGS_H_ |