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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_STORAGE_MONITOR_STORAGE_INFO_H_
#define COMPONENTS_STORAGE_MONITOR_STORAGE_INFO_H_
#include <stdint.h>
#include <string>
#include "base/component_export.h"
#include "base/files/file_path.h"
namespace storage_monitor {
class COMPONENT_EXPORT(STORAGE_MONITOR) StorageInfo {
public:
enum Type {
// A removable mass storage device with a DCIM directory.
REMOVABLE_MASS_STORAGE_WITH_DCIM,
// A removable mass storage device without a DCIM directory.
REMOVABLE_MASS_STORAGE_NO_DCIM,
// A fixed mass storage device.
FIXED_MASS_STORAGE,
// A MTP or PTP device.
MTP_OR_PTP,
// A Mac ImageCapture device.
MAC_IMAGE_CAPTURE,
};
StorageInfo();
// Note: |device_id_in| should be constructed with MakeDeviceId.
StorageInfo(const std::string& device_id_in,
const base::FilePath::StringType& device_location,
const std::u16string& label,
const std::u16string& vendor,
const std::u16string& model,
uint64_t size_in_bytes);
StorageInfo(const StorageInfo& other);
~StorageInfo();
// Returns a device id given properties of the device. A prefix dependent on
// |type| is added so |unique_id| need only be unique within the given type.
// Returns an empty string if an invalid type is passed in.
static std::string MakeDeviceId(Type type, const std::string& unique_id);
// Extracts the device |type| and |unique_id| from |device_id|. Returns false
// if the device_id isn't properly formatted.
static bool CrackDeviceId(const std::string& device_id,
Type* type, std::string* unique_id);
// Looks inside |device_id| to determine if it is a media device
// (type is REMOVABLE_MASS_STORAGE_WITH_DCIM or MTP_OR_PTP).
static bool IsMediaDevice(const std::string& device_id);
// Looks inside |device_id| to determine if it is a media device
// (type isn't FIXED_MASS_STORAGE).
static bool IsRemovableDevice(const std::string& device_id);
// Looks inside |device_id| to determine if it is a mass storage device
// (type isn't MTP_OR_PTP).
static bool IsMassStorageDevice(const std::string& device_id);
static bool IsMTPDevice(const std::string& device_id);
// Get the display name for the removable device represented by this
// StorageInfo. Include the size for removable devices if |with_size| is true.
std::u16string GetDisplayName(bool with_size) const;
// Same as GetDisplayName(), but may be overridden by |override_display_name|.
std::u16string GetDisplayNameWithOverride(
const std::u16string& override_display_name,
bool with_size) const;
const std::string& device_id() const { return device_id_; }
const base::FilePath::StringType& location() const { return location_; }
const std::u16string& storage_label() const { return storage_label_; }
const std::u16string& vendor_name() const { return vendor_name_; }
const std::u16string& model_name() const { return model_name_; }
uint64_t total_size_in_bytes() const { return total_size_in_bytes_; }
void set_device_id(const std::string& device_id) { device_id_ = device_id; }
void set_location(const base::FilePath::StringType& location) {
location_ = location;
}
private:
// Unique device id - persists between device attachments.
// This is the string that should be used as the label for a particular
// storage device when interacting with the API. Clients should treat
// this as an opaque string.
std::string device_id_;
// Current attached removable storage device location.
base::FilePath::StringType location_;
// Label given to this storage device by the user.
// May be empty if not found or the device is unlabeled.
std::u16string storage_label_;
// Vendor name for the removable device. (Human readable)
// May be empty if not collected.
std::u16string vendor_name_;
// Model name for the removable device. (Human readable)
// May be empty if not collected.
std::u16string model_name_;
// Size of the removable device in bytes.
// Zero if not collected or unknown.
uint64_t total_size_in_bytes_;
};
} // namespace storage_monitor
#endif // COMPONENTS_STORAGE_MONITOR_STORAGE_INFO_H_
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