chrome/browser/ash/printing/usb_printer_util.h

// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// Utility routines for working with UsbDevices that are printers.

#ifndef CHROME_BROWSER_ASH_PRINTING_USB_PRINTER_UTIL_H_
#define CHROME_BROWSER_ASH_PRINTING_USB_PRINTER_UTIL_H_

#include "chrome/browser/ash/printing/printer_detector.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "services/device/public/mojom/usb_device.mojom-forward.h"

namespace chromeos {
class Printer;
class UsbPrinterId;
}  // namespace chromeos

namespace ash {

std::u16string GetManufacturerName(
    const device::mojom::UsbDeviceInfo& device_info);

std::u16string GetProductName(const device::mojom::UsbDeviceInfo& device_info);

std::u16string GetSerialNumber(const device::mojom::UsbDeviceInfo& device_info);

bool UsbDeviceIsPrinter(const device::mojom::UsbDeviceInfo& device_info);

// Attempt to gather all the information we need to work with this printer by
// querying the USB device.  This should only be called using devices we believe
// are printers, not arbitrary USB devices, as we may get weird partial results
// from arbitrary devices. The results are saved in the second parameter.
//
// Returns false and logs an error on failure.
bool UsbDeviceToPrinter(const device::mojom::UsbDeviceInfo& device_info,
                        PrinterDetector::DetectedPrinter* entry);

// Expects |device_ptr| to be linked to a Printer-class USB Device. Queries the
// printer for its IEEE 1284 Standard Device ID.
using GetDeviceIdCallback = base::OnceCallback<void(chromeos::UsbPrinterId)>;
void GetDeviceId(mojo::Remote<device::mojom::UsbDevice> device,
                 GetDeviceIdCallback cb);

}  // namespace ash

#endif  // CHROME_BROWSER_ASH_PRINTING_USB_PRINTER_UTIL_H_