| // Copyright 2015 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_CACHE_STORAGE_HELPER_H_ |
| #define CHROME_BROWSER_BROWSING_DATA_BROWSING_DATA_CACHE_STORAGE_HELPER_H_ |
| |
| #include <stddef.h> |
| #include <stdint.h> |
| |
| #include <list> |
| #include <set> |
| |
| #include "base/callback.h" |
| #include "base/macros.h" |
| #include "base/memory/ref_counted.h" |
| #include "base/time/time.h" |
| #include "content/public/browser/cache_storage_context.h" |
| #include "content/public/browser/cache_storage_usage_info.h" |
| #include "url/gurl.h" |
| |
| // BrowsingDataCacheStorageHelper is an interface for classes dealing with |
| // aggregating and deleting browsing data stored for Cache Storage. |
| // A client of this class need to call StartFetching from the UI thread to |
| // initiate the flow, and it'll be notified by the callback in its UI thread at |
| // some later point. |
| class BrowsingDataCacheStorageHelper |
| : public base::RefCountedThreadSafe<BrowsingDataCacheStorageHelper> { |
| public: |
| using FetchCallback = base::OnceCallback<void( |
| const std::list<content::CacheStorageUsageInfo>&)>; |
| |
| // Create a BrowsingDataCacheStorageHelper instance for the Cache Storage |
| // stored in |context|'s associated profile's user data directory. |
| explicit BrowsingDataCacheStorageHelper( |
| content::CacheStorageContext* context); |
| |
| // 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); |
| // Requests the Cache Storage data for an origin be deleted. |
| virtual void DeleteCacheStorage(const GURL& origin); |
| |
| protected: |
| virtual ~BrowsingDataCacheStorageHelper(); |
| |
| // Owned by the profile. |
| content::CacheStorageContext* cache_storage_context_; |
| |
| private: |
| friend class base::RefCountedThreadSafe<BrowsingDataCacheStorageHelper>; |
| |
| // Deletes Cache Storages for an origin the IO thread. |
| void DeleteCacheStorageOnIOThread(const GURL& origin); |
| |
| // Enumerates all Cache Storage instances on the IO thread. |
| void FetchCacheStorageUsageInfoOnIOThread(FetchCallback callback); |
| |
| DISALLOW_COPY_AND_ASSIGN(BrowsingDataCacheStorageHelper); |
| }; |
| |
| // This class is an implementation of BrowsingDataCacheStorageHelper that does |
| // not fetch its information from the Cache Storage context, but is passed the |
| // info as a parameter. |
| class CannedBrowsingDataCacheStorageHelper |
| : public BrowsingDataCacheStorageHelper { |
| public: |
| // Contains information about a Cache Storage. |
| struct PendingCacheStorageUsageInfo { |
| PendingCacheStorageUsageInfo(const GURL& origin, |
| int64_t total_size_bytes, |
| const base::Time& last_modified); |
| ~PendingCacheStorageUsageInfo(); |
| |
| bool operator<(const PendingCacheStorageUsageInfo& other) const; |
| |
| GURL origin; |
| int64_t total_size_bytes; |
| base::Time last_modified; |
| }; |
| |
| explicit CannedBrowsingDataCacheStorageHelper( |
| content::CacheStorageContext* context); |
| |
| // Add a Cache Storage to the set of canned Cache Storages that is |
| // returned by this helper. |
| void AddCacheStorage(const GURL& origin); |
| |
| // Clear the list of canned Cache Storages. |
| void Reset(); |
| |
| // True if no Cache Storages are currently stored. |
| bool empty() const; |
| |
| // Returns the number of currently stored Cache Storages. |
| size_t GetCacheStorageCount() const; |
| |
| // Returns the current list of Cache Storages. |
| const std::set< |
| CannedBrowsingDataCacheStorageHelper::PendingCacheStorageUsageInfo>& |
| GetCacheStorageUsageInfo() const; |
| |
| // BrowsingDataCacheStorageHelper methods. |
| void StartFetching(FetchCallback callback) override; |
| void DeleteCacheStorage(const GURL& origin) override; |
| |
| private: |
| ~CannedBrowsingDataCacheStorageHelper() override; |
| |
| std::set<PendingCacheStorageUsageInfo> pending_cache_storage_info_; |
| |
| DISALLOW_COPY_AND_ASSIGN(CannedBrowsingDataCacheStorageHelper); |
| }; |
| |
| #endif // CHROME_BROWSER_BROWSING_DATA_BROWSING_DATA_CACHE_STORAGE_HELPER_H_ |