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// 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 WEBKIT_FILEAPI_SANDBOX_QUOTA_OBSERVER_H_
#define WEBKIT_FILEAPI_SANDBOX_QUOTA_OBSERVER_H_
#include <map>
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "base/file_path.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "webkit/fileapi/file_observers.h"
#include "webkit/fileapi/file_system_url.h"
namespace base {
class SequencedTaskRunner;
}
namespace quota {
class QuotaManagerProxy;
}
namespace fileapi {
class FileSystemURL;
class ObfuscatedFileUtil;
class SandboxQuotaObserver
: public FileUpdateObserver,
public FileAccessObserver {
public:
typedef std::map<base::FilePath, int64> PendingUpdateNotificationMap;
SandboxQuotaObserver(
quota::QuotaManagerProxy* quota_manager_proxy,
base::SequencedTaskRunner* update_notify_runner,
ObfuscatedFileUtil* sandbox_file_util);
virtual ~SandboxQuotaObserver();
// FileUpdateObserver overrides.
virtual void OnStartUpdate(const FileSystemURL& url) OVERRIDE;
virtual void OnUpdate(const FileSystemURL& url, int64 delta) OVERRIDE;
virtual void OnEndUpdate(const FileSystemURL& url) OVERRIDE;
// FileAccessObserver overrides.
virtual void OnAccess(const FileSystemURL& url) OVERRIDE;
private:
void ApplyPendingUsageUpdate();
void UpdateUsageCacheFile(const base::FilePath& usage_file_path, int64 delta);
base::FilePath GetUsageCachePath(const FileSystemURL& url);
scoped_refptr<quota::QuotaManagerProxy> quota_manager_proxy_;
scoped_refptr<base::SequencedTaskRunner> update_notify_runner_;
// Not owned; sandbox_file_util_ should have identical lifetime with this.
ObfuscatedFileUtil* sandbox_file_util_;
PendingUpdateNotificationMap pending_update_notification_;
bool running_delayed_cache_update_;
base::WeakPtrFactory<SandboxQuotaObserver> weak_factory_;
DISALLOW_COPY_AND_ASSIGN(SandboxQuotaObserver);
};
} // namespace fileapi
#endif // WEBKIT_FILEAPI_SANDBOX_QUOTA_OBSERVER_H_
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