1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef STORAGE_BROWSER_FILEAPI_SANDBOX_QUOTA_OBSERVER_H_ 6 #define STORAGE_BROWSER_FILEAPI_SANDBOX_QUOTA_OBSERVER_H_ 7 8 #include <map> 9 10 #include "base/basictypes.h" 11 #include "base/compiler_specific.h" 12 #include "base/files/file_path.h" 13 #include "base/memory/ref_counted.h" 14 #include "base/memory/scoped_ptr.h" 15 #include "base/memory/weak_ptr.h" 16 #include "storage/browser/fileapi/file_observers.h" 17 #include "storage/browser/fileapi/file_system_url.h" 18 19 namespace base { 20 class SequencedTaskRunner; 21 } 22 23 namespace storage { 24 class QuotaManagerProxy; 25 } 26 27 namespace storage { 28 29 class FileSystemUsageCache; 30 class FileSystemURL; 31 class TimedTaskHelper; 32 class ObfuscatedFileUtil; 33 34 class SandboxQuotaObserver 35 : public FileUpdateObserver, 36 public FileAccessObserver { 37 public: 38 typedef std::map<base::FilePath, int64> PendingUpdateNotificationMap; 39 40 SandboxQuotaObserver(storage::QuotaManagerProxy* quota_manager_proxy, 41 base::SequencedTaskRunner* update_notify_runner, 42 ObfuscatedFileUtil* sandbox_file_util, 43 FileSystemUsageCache* file_system_usage_cache_); 44 virtual ~SandboxQuotaObserver(); 45 46 // FileUpdateObserver overrides. 47 virtual void OnStartUpdate(const FileSystemURL& url) OVERRIDE; 48 virtual void OnUpdate(const FileSystemURL& url, int64 delta) OVERRIDE; 49 virtual void OnEndUpdate(const FileSystemURL& url) OVERRIDE; 50 51 // FileAccessObserver overrides. 52 virtual void OnAccess(const FileSystemURL& url) OVERRIDE; 53 54 void SetUsageCacheEnabled(const GURL& origin, 55 FileSystemType type, 56 bool enabled); 57 58 private: 59 void ApplyPendingUsageUpdate(); 60 void UpdateUsageCacheFile(const base::FilePath& usage_file_path, int64 delta); 61 62 base::FilePath GetUsageCachePath(const FileSystemURL& url); 63 64 scoped_refptr<storage::QuotaManagerProxy> quota_manager_proxy_; 65 scoped_refptr<base::SequencedTaskRunner> update_notify_runner_; 66 67 // Not owned; sandbox_file_util_ should have identical lifetime with this. 68 ObfuscatedFileUtil* sandbox_file_util_; 69 70 // Not owned; file_system_usage_cache_ should have longer lifetime than this. 71 FileSystemUsageCache* file_system_usage_cache_; 72 73 PendingUpdateNotificationMap pending_update_notification_; 74 scoped_ptr<TimedTaskHelper> delayed_cache_update_helper_; 75 76 DISALLOW_COPY_AND_ASSIGN(SandboxQuotaObserver); 77 }; 78 79 } // namespace storage 80 81 #endif // STORAGE_BROWSER_FILEAPI_SANDBOX_QUOTA_OBSERVER_H_ 82