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| 1 // Copyright 2017 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 // Utility routines for working with UsbDevices that are printers. |
| 6 |
| 7 #ifndef CHROME_BROWSER_CHROMEOS_PRINTING_USB_PRINTER_UTIL_H__ |
| 8 #define CHROME_BROWSER_CHROMEOS_PRINTING_USB_PRINTER_UTIL_H__ |
| 9 |
| 10 #include <memory> |
| 11 #include <string> |
| 12 |
| 13 #include "base/memory/ref_counted.h" |
| 14 |
| 15 namespace device { |
| 16 class UsbDevice; |
| 17 } |
| 18 |
| 19 namespace chromeos { |
| 20 |
| 21 class Printer; |
| 22 |
| 23 bool UsbDeviceIsPrinter(scoped_refptr<device::UsbDevice> usb_device); |
| 24 |
| 25 // Convert the interesting details of a device to a string, for |
| 26 // logging/debugging. |
| 27 std::string UsbPrinterDeviceDetailsAsString(const device::UsbDevice& device); |
| 28 |
| 29 // Attempt to gather all the information we need to work with this printer by |
| 30 // querying the USB device. This should only be called using devices we believe |
| 31 // are printers, not arbitrary USB devices, as we may get weird partial results |
| 32 // from arbitrary devices. |
| 33 // |
| 34 // Returns nullptr and logs an error on failure. |
| 35 std::unique_ptr<Printer> UsbDeviceToPrinter(const device::UsbDevice& device); |
| 36 |
| 37 // Gets the URI CUPS would use to refer to this USB device. Assumes device |
| 38 // is a printer. |
| 39 std::string UsbPrinterUri(const device::UsbDevice& device); |
| 40 |
| 41 } // namespace chromeos |
| 42 #endif // CHROME_BROWSER_CHROMEOS_PRINTING_USB_PRINTER_UTIL_H__ |
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