printing/backend/print_backend_chromeos.cc

   1 // Copyright (c) 2012 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 #include "printing/backend/print_backend.h"
   6
   7 #include "base/logging.h"
   8
   9 namespace printing {
  10
  11 // Provides a stubbed out PrintBackend implementation for use on ChromeOS.
  12 class PrintBackendChromeOS : public PrintBackend {
  13  public:
  14   PrintBackendChromeOS();
  15
  16   // PrintBackend implementation.
  17   bool EnumeratePrinters(PrinterList* printer_list) override;
  18   std::string GetDefaultPrinterName() override;
  19   bool GetPrinterSemanticCapsAndDefaults(
  20       const std::string& printer_name,
  21       PrinterSemanticCapsAndDefaults* printer_info) override;
  22   bool GetPrinterCapsAndDefaults(const std::string& printer_name,
  23                                  PrinterCapsAndDefaults* printer_info) override;
  24   std::string GetPrinterDriverInfo(const std::string& printer_name) override;
  25   bool IsValidPrinter(const std::string& printer_name) override;
  26
  27  protected:
  28   ~PrintBackendChromeOS() override {}
  29 };
  30
  31 PrintBackendChromeOS::PrintBackendChromeOS() {}
  32
  33 bool PrintBackendChromeOS::EnumeratePrinters(PrinterList* printer_list) {
  34   return true;
  35 }
  36
  37 bool PrintBackendChromeOS::GetPrinterSemanticCapsAndDefaults(
  38     const std::string& printer_name,
  39     PrinterSemanticCapsAndDefaults* printer_info) {
  40   NOTREACHED();
  41   return false;
  42 }
  43
  44 bool PrintBackendChromeOS::GetPrinterCapsAndDefaults(
  45     const std::string& printer_name,
  46     PrinterCapsAndDefaults* printer_info) {
  47   NOTREACHED();
  48   return false;
  49 }
  50
  51 std::string PrintBackendChromeOS::GetPrinterDriverInfo(
  52     const std::string& printer_name) {
  53   NOTREACHED();
  54   return std::string();
  55 }
  56
  57 std::string PrintBackendChromeOS::GetDefaultPrinterName() {
  58   return std::string();
  59 }
  60
  61 bool PrintBackendChromeOS::IsValidPrinter(const std::string& printer_name) {
  62   NOTREACHED();
  63   return true;
  64 }
  65
  66 scoped_refptr<PrintBackend> PrintBackend::CreateInstance(
  67     const base::DictionaryValue* print_backend_settings) {
  68   return new PrintBackendChromeOS();
  69 }
  70
  71 }  // namespace printing
  72