| // Copyright (c) 2012 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 CONTENT_PUBLIC_BROWSER_DOM_STORAGE_CONTEXT_H_ |
| #define CONTENT_PUBLIC_BROWSER_DOM_STORAGE_CONTEXT_H_ |
| |
| #include <string> |
| #include <vector> |
| |
| #include "base/callback.h" |
| |
| class GURL; |
| |
| namespace content { |
| |
| class BrowserContext; |
| struct LocalStorageUsageInfo; |
| class SessionStorageNamespace; |
| struct SessionStorageUsageInfo; |
| |
| // Represents the per-BrowserContext Local Storage data. |
| class DOMStorageContext { |
| public: |
| typedef base::Callback< |
| void(const std::vector<LocalStorageUsageInfo>&)> |
| GetLocalStorageUsageCallback; |
| |
| typedef base::Callback< |
| void(const std::vector<SessionStorageUsageInfo>&)> |
| GetSessionStorageUsageCallback; |
| |
| // Returns a collection of origins using local storage to the given callback. |
| virtual void GetLocalStorageUsage( |
| const GetLocalStorageUsageCallback& callback) = 0; |
| |
| // Returns a collection of origins using session storage to the given |
| // callback. |
| virtual void GetSessionStorageUsage( |
| const GetSessionStorageUsageCallback& callback) = 0; |
| |
| // Deletes the local storage data for the given origin. |
| virtual void DeleteLocalStorage(const GURL& origin) = 0; |
| |
| // Deletes the session storage data identified by |usage_info|. |
| virtual void DeleteSessionStorage( |
| const SessionStorageUsageInfo& usage_info) = 0; |
| |
| // If this is called, sessionStorage data will be stored on disk, and can be |
| // restored after a browser restart (with RecreateSessionStorage). This |
| // function must be called right after DOMStorageContextWrapper is created, |
| // and before it's used. |
| virtual void SetSaveSessionStorageOnDisk() = 0; |
| |
| // Creates a SessionStorageNamespace with the given |persistent_id|. Used |
| // after tabs are restored by session restore. When created, the |
| // SessionStorageNamespace with the correct |persistent_id| will be |
| // associated with the persisted sessionStorage data. |
| virtual scoped_refptr<SessionStorageNamespace> RecreateSessionStorage( |
| const std::string& persistent_id) = 0; |
| |
| // Starts deleting sessionStorages which don't have an associated |
| // SessionStorageNamespace alive. Called when SessionStorageNamespaces have |
| // been created after a session restore, or a session restore won't happen. |
| virtual void StartScavengingUnusedSessionStorage() = 0; |
| |
| protected: |
| virtual ~DOMStorageContext() {} |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_PUBLIC_BROWSER_DOM_STORAGE_CONTEXT_H_ |