printing/backend/print_backend_dummy.cc

   1 // Copyright (c) 2010 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 // This is dummy implementation for all configurations where there is no
   6 // print backend.
   7 #if !defined(PRINT_BACKEND_AVAILABLE)
   8
   9 #include "printing/backend/print_backend.h"
  10
  11 #include "base/logging.h"
  12 #include "base/values.h"
  13
  14 namespace printing {
  15
  16 class DummyPrintBackend : public PrintBackend {
  17  public:
  18   DummyPrintBackend() {
  19   }
  20
  21   bool EnumeratePrinters(PrinterList* printer_list) override {
  22     return false;
  23   }
  24
  25   std::string GetDefaultPrinterName() override {
  26     return std::string();
  27   }
  28
  29   bool GetPrinterSemanticCapsAndDefaults(
  30       const std::string& printer_name,
  31       PrinterSemanticCapsAndDefaults* printer_info) override {
  32     return false;
  33   }
  34
  35   bool GetPrinterCapsAndDefaults(
  36       const std::string& printer_name,
  37       PrinterCapsAndDefaults* printer_info) override {
  38     return false;
  39   }
  40
  41   std::string GetPrinterDriverInfo(
  42       const std::string& printer_name) override {
  43     return std::string();
  44   }
  45
  46   bool IsValidPrinter(const std::string& printer_name) override {
  47     return false;
  48   }
  49
  50  private:
  51   ~DummyPrintBackend() override {}
  52
  53   DISALLOW_COPY_AND_ASSIGN(DummyPrintBackend);
  54 };
  55
  56 scoped_refptr<PrintBackend> PrintBackend::CreateInstance(
  57     const base::DictionaryValue* print_backend_settings) {
  58   return new DummyPrintBackend();
  59 }
  60
  61 }  // namespace printing
  62
  63 #endif  // PRINT_BACKEND_AVAILABLE