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 19namespace base { 20class SequencedTaskRunner; 21} 22 23namespace storage { 24class QuotaManagerProxy; 25} 26 27namespace storage { 28 29class FileSystemUsageCache; 30class FileSystemURL; 31class TimedTaskHelper; 32class ObfuscatedFileUtil; 33 34class 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