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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 CHROME_BROWSER_SYSTEM_MONITOR_REMOVABLE_DEVICE_NOTIFICATIONS_MAC_H_
#define CHROME_BROWSER_SYSTEM_MONITOR_REMOVABLE_DEVICE_NOTIFICATIONS_MAC_H_
#include <DiskArbitration/DiskArbitration.h>
#include <map>
#include "base/mac/scoped_cftyperef.h"
#include "base/memory/ref_counted.h"
#include "chrome/browser/system_monitor/disk_info_mac.h"
#include "chrome/browser/system_monitor/removable_storage_notifications.h"
namespace chrome {
// This class posts notifications to listeners when a new disk
// is attached, removed, or changed.
class RemovableDeviceNotificationsMac
: public RemovableStorageNotifications,
public base::RefCountedThreadSafe<RemovableDeviceNotificationsMac> {
public:
enum UpdateType {
UPDATE_DEVICE_ADDED,
UPDATE_DEVICE_CHANGED,
UPDATE_DEVICE_REMOVED,
};
// Should only be called by browser start up code. Use GetInstance() instead.
RemovableDeviceNotificationsMac();
void UpdateDisk(const DiskInfoMac& info, UpdateType update_type);
virtual bool GetDeviceInfoForPath(
const base::FilePath& path,
StorageInfo* device_info) const OVERRIDE;
// Returns the storage size of the device present at |location|. If the
// device information is unavailable, returns zero. |location| must be a
// top-level mount point.
virtual uint64 GetStorageSize(const std::string& location) const OVERRIDE;
private:
friend class base::RefCountedThreadSafe<RemovableDeviceNotificationsMac>;
virtual ~RemovableDeviceNotificationsMac();
static void DiskAppearedCallback(DADiskRef disk, void* context);
static void DiskDisappearedCallback(DADiskRef disk, void* context);
static void DiskDescriptionChangedCallback(DADiskRef disk,
CFArrayRef keys,
void *context);
bool ShouldPostNotificationForDisk(const DiskInfoMac& info) const;
bool FindDiskWithMountPoint(const base::FilePath& mount_point,
DiskInfoMac* info) const;
base::mac::ScopedCFTypeRef<DASessionRef> session_;
// Maps disk bsd names to disk info objects. This map tracks all mountable
// devices on the system though only notifications for removable devices are
// posted.
std::map<std::string, DiskInfoMac> disk_info_map_;
DISALLOW_COPY_AND_ASSIGN(RemovableDeviceNotificationsMac);
};
} // namespace chrome
#endif // CHROME_BROWSER_SYSTEM_MONITOR_REMOVABLE_DEVICE_NOTIFICATIONS_MAC_H_
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