| // 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 CHROME_BROWSER_BROWSING_DATA_BROWSING_DATA_LOCAL_STORAGE_HELPER_H_ |
| #define CHROME_BROWSER_BROWSING_DATA_BROWSING_DATA_LOCAL_STORAGE_HELPER_H_ |
| |
| #include <stddef.h> |
| #include <stdint.h> |
| |
| #include <list> |
| #include <map> |
| #include <set> |
| |
| #include "base/callback.h" |
| #include "base/files/file_path.h" |
| #include "base/macros.h" |
| #include "base/memory/ref_counted.h" |
| #include "base/time/time.h" |
| #include "content/public/browser/dom_storage_context.h" |
| #include "content/public/browser/storage_usage_info.h" |
| #include "url/origin.h" |
| |
| class Profile; |
| |
| // This class fetches local storage information and provides a |
| // means to delete the data associated with an origin. |
| class BrowsingDataLocalStorageHelper |
| : public base::RefCounted<BrowsingDataLocalStorageHelper> { |
| public: |
| using FetchCallback = |
| base::OnceCallback<void(const std::list<content::StorageUsageInfo>&)>; |
| |
| explicit BrowsingDataLocalStorageHelper(Profile* profile); |
| |
| // Starts the fetching process, which will notify its completion via |
| // callback. This must be called only in the UI thread. |
| virtual void StartFetching(FetchCallback callback); |
| |
| // Deletes the local storage for the |origin|. |callback| is called when |
| // the deletion is sent to the database and |StartFetching()| doesn't return |
| // entries for |origin_url| anymore. |
| virtual void DeleteOrigin(const url::Origin& origin, |
| base::OnceClosure callback); |
| |
| protected: |
| friend class base::RefCounted<BrowsingDataLocalStorageHelper>; |
| virtual ~BrowsingDataLocalStorageHelper(); |
| |
| content::DOMStorageContext* dom_storage_context_; // Owned by the profile |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(BrowsingDataLocalStorageHelper); |
| }; |
| |
| // This class is a thin wrapper around BrowsingDataLocalStorageHelper that does |
| // not fetch its information from the local storage context, but gets them |
| // passed by a call when accessed. |
| class CannedBrowsingDataLocalStorageHelper |
| : public BrowsingDataLocalStorageHelper { |
| public: |
| explicit CannedBrowsingDataLocalStorageHelper(Profile* profile); |
| |
| // Add a local storage to the set of canned local storages that is returned |
| // by this helper. |
| void Add(const url::Origin& origin_url); |
| |
| // Clear the list of canned local storages. |
| void Reset(); |
| |
| // True if no local storages are currently stored. |
| bool empty() const; |
| |
| // Returns the number of local storages currently stored. |
| size_t GetCount() const; |
| |
| // Returns the set of origins that use local storage. |
| const std::set<url::Origin>& GetOrigins() const; |
| |
| // BrowsingDataLocalStorageHelper implementation. |
| void StartFetching(FetchCallback callback) override; |
| void DeleteOrigin(const url::Origin& origin, |
| base::OnceClosure callback) override; |
| |
| private: |
| ~CannedBrowsingDataLocalStorageHelper() override; |
| |
| std::set<url::Origin> pending_origins_; |
| |
| DISALLOW_COPY_AND_ASSIGN(CannedBrowsingDataLocalStorageHelper); |
| }; |
| |
| #endif // CHROME_BROWSER_BROWSING_DATA_BROWSING_DATA_LOCAL_STORAGE_HELPER_H_ |