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// Copyright 2014 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.
// StorageMonitorCros listens for mount point changes and notifies listeners
// about the addition and deletion of media devices. This class lives on the
// UI thread.
#ifndef COMPONENTS_STORAGE_MONITOR_STORAGE_MONITOR_CHROMEOS_H_
#define COMPONENTS_STORAGE_MONITOR_STORAGE_MONITOR_CHROMEOS_H_
#if !defined(OS_CHROMEOS)
#error "Should only be used on ChromeOS."
#endif
#include <map>
#include <memory>
#include <string>
#include "base/compiler_specific.h"
#include "base/macros.h"
#include "base/memory/weak_ptr.h"
#include "build/build_config.h"
#include "chromeos/disks/disk_mount_manager.h"
#include "components/storage_monitor/storage_monitor.h"
namespace storage_monitor {
class MediaTransferProtocolDeviceObserverChromeOS;
class StorageMonitorCros : public StorageMonitor,
public chromeos::disks::DiskMountManager::Observer {
public:
// Should only be called by browser start up code.
// Use StorageMonitor::GetInstance() instead.
StorageMonitorCros();
~StorageMonitorCros() override;
// Sets up disk listeners and issues notifications for any discovered
// mount points. Sets up MTP manager and listeners.
void Init() override;
protected:
void SetMediaTransferProtocolManagerForTest(
device::MediaTransferProtocolManager* test_manager);
// chromeos::disks::DiskMountManager::Observer implementation.
void OnAutoMountableDiskEvent(
chromeos::disks::DiskMountManager::DiskEvent event,
const chromeos::disks::DiskMountManager::Disk& disk) override;
void OnBootDeviceDiskEvent(
chromeos::disks::DiskMountManager::DiskEvent event,
const chromeos::disks::DiskMountManager::Disk& disk) override;
void OnDeviceEvent(chromeos::disks::DiskMountManager::DeviceEvent event,
const std::string& device_path) override;
void OnMountEvent(chromeos::disks::DiskMountManager::MountEvent event,
chromeos::MountError error_code,
const chromeos::disks::DiskMountManager::MountPointInfo&
mount_info) override;
void OnFormatEvent(chromeos::disks::DiskMountManager::FormatEvent event,
chromeos::FormatError error_code,
const std::string& device_path) override;
void OnRenameEvent(chromeos::disks::DiskMountManager::RenameEvent event,
chromeos::RenameError error_code,
const std::string& device_path) override;
// StorageMonitor implementation.
bool GetStorageInfoForPath(const base::FilePath& path,
StorageInfo* device_info) const override;
void EjectDevice(const std::string& device_id,
base::Callback<void(EjectStatus)> callback) override;
device::MediaTransferProtocolManager* media_transfer_protocol_manager()
override;
private:
// Mapping of mount path to removable mass storage info.
typedef std::map<std::string, StorageInfo> MountMap;
// Helper method that checks existing mount points to see if they are media
// devices. Eventually calls AddMountedPath for all mount points.
void CheckExistingMountPoints();
// Adds the mount point in |mount_info| to |mount_map_| and send a media
// device attach notification. |has_dcim| is true if the attached device has
// a DCIM folder.
void AddMountedPath(
const chromeos::disks::DiskMountManager::MountPointInfo& mount_info,
bool has_dcim);
// Adds the mount point in |disk| to |mount_map_| and send a device
// attach notification.
void AddFixedStorageDisk(const chromeos::disks::DiskMountManager::Disk& disk);
// Removes the mount point in |disk| from |mount_map_| and send a device
// detach notification.
void RemoveFixedStorageDisk(
const chromeos::disks::DiskMountManager::Disk& disk);
// Mapping of relevant mount points and their corresponding mount devices.
MountMap mount_map_;
std::unique_ptr<device::MediaTransferProtocolManager>
media_transfer_protocol_manager_;
std::unique_ptr<MediaTransferProtocolDeviceObserverChromeOS>
media_transfer_protocol_device_observer_;
base::WeakPtrFactory<StorageMonitorCros> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(StorageMonitorCros);
};
} // namespace storage_monitor
#endif // COMPONENTS_STORAGE_MONITOR_STORAGE_MONITOR_CHROMEOS_H_