printing/printing_context.cc

   1 // Copyright (c) 2011 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/printing_context.h"
   6
   7 #include "base/logging.h"
   8 #include "base/values.h"
   9 #include "printing/buildflags/buildflags.h"
  10 #include "printing/page_setup.h"
  11 #include "printing/page_size_margins.h"
  12 #include "printing/print_job_constants.h"
  13 #include "printing/print_settings_conversion.h"
  14 #include "printing/units.h"
  15
  16 namespace printing {
  17
  18 namespace {
  19 const float kCloudPrintMarginInch = 0.25;
  20 }
  21
  22 PrintingContext::PrintingContext(Delegate* delegate)
  23     : delegate_(delegate),
  24       in_print_job_(false),
  25       abort_printing_(false) {
  26   DCHECK(delegate_);
  27 }
  28
  29 PrintingContext::~PrintingContext() = default;
  30
  31 void PrintingContext::set_margin_type(MarginType type) {
  32   DCHECK(type != CUSTOM_MARGINS);
  33   settings_.set_margin_type(type);
  34 }
  35
  36 void PrintingContext::set_is_modifiable(bool is_modifiable) {
  37   settings_.set_is_modifiable(is_modifiable);
  38 #if defined(OS_WIN)
  39   settings_.set_print_text_with_gdi(is_modifiable);
  40 #endif
  41 }
  42
  43 void PrintingContext::ResetSettings() {
  44   ReleaseContext();
  45
  46   settings_.Clear();
  47
  48   in_print_job_ = false;
  49   abort_printing_ = false;
  50 }
  51
  52 PrintingContext::Result PrintingContext::OnError() {
  53   Result result = abort_printing_ ? CANCEL : FAILED;
  54   ResetSettings();
  55   return result;
  56 }
  57
  58 PrintingContext::Result PrintingContext::UsePdfSettings() {
  59   base::Value pdf_settings(base::Value::Type::DICTIONARY);
  60   pdf_settings.SetKey(kSettingHeaderFooterEnabled, base::Value(false));
  61   pdf_settings.SetKey(kSettingShouldPrintBackgrounds, base::Value(false));
  62   pdf_settings.SetKey(kSettingShouldPrintSelectionOnly, base::Value(false));
  63   pdf_settings.SetKey(kSettingMarginsType, base::Value(printing::NO_MARGINS));
  64   pdf_settings.SetKey(kSettingCollate, base::Value(true));
  65   pdf_settings.SetKey(kSettingCopies, base::Value(1));
  66   pdf_settings.SetKey(kSettingColor, base::Value(printing::COLOR));
  67   pdf_settings.SetKey(kSettingDpiHorizontal, base::Value(kPointsPerInch));
  68   pdf_settings.SetKey(kSettingDpiVertical, base::Value(kPointsPerInch));
  69   pdf_settings.SetKey(kSettingDuplexMode, base::Value(printing::SIMPLEX));
  70   pdf_settings.SetKey(kSettingLandscape, base::Value(false));
  71   pdf_settings.SetKey(kSettingDeviceName, base::Value(""));
  72   pdf_settings.SetKey(kSettingPrintToPDF, base::Value(true));
  73   pdf_settings.SetKey(kSettingCloudPrintDialog, base::Value(false));
  74   pdf_settings.SetKey(kSettingPrintWithPrivet, base::Value(false));
  75   pdf_settings.SetKey(kSettingPrintWithExtension, base::Value(false));
  76   pdf_settings.SetKey(kSettingScaleFactor, base::Value(100));
  77   pdf_settings.SetKey(kSettingRasterizePdf, base::Value(false));
  78   pdf_settings.SetKey(kSettingPagesPerSheet, base::Value(1));
  79   return UpdatePrintSettings(std::move(pdf_settings));
  80 }
  81
  82 PrintingContext::Result PrintingContext::UpdatePrintSettings(
  83     base::Value job_settings) {
  84   ResetSettings();
  85
  86   if (!PrintSettingsFromJobSettings(job_settings, &settings_)) {
  87     NOTREACHED();
  88     return OnError();
  89   }
  90
  91   base::Optional<bool> print_to_pdf_opt =
  92       job_settings.FindBoolKey(kSettingPrintToPDF);
  93   base::Optional<bool> is_cloud_dialog_opt =
  94       job_settings.FindBoolKey(kSettingCloudPrintDialog);
  95   base::Optional<bool> print_with_privet_opt =
  96       job_settings.FindBoolKey(kSettingPrintWithPrivet);
  97   base::Optional<bool> print_with_extension_opt =
  98       job_settings.FindBoolKey(kSettingPrintWithExtension);
  99
 100   if (!print_to_pdf_opt || !is_cloud_dialog_opt || !print_with_privet_opt ||
 101       !print_with_extension_opt) {
 102     NOTREACHED();
 103     return OnError();
 104   }
 105
 106   bool print_to_pdf = print_to_pdf_opt.value();
 107   bool is_cloud_dialog = is_cloud_dialog_opt.value();
 108   bool print_with_privet = print_with_privet_opt.value();
 109   bool print_with_extension = print_with_extension_opt.value();
 110
 111   bool print_to_cloud = job_settings.FindKey(kSettingCloudPrintId) != nullptr;
 112   bool open_in_external_preview =
 113       job_settings.FindKey(kSettingOpenPDFInPreview) != nullptr;
 114
 115   if (!open_in_external_preview &&
 116       (print_to_pdf || print_to_cloud || is_cloud_dialog || print_with_privet ||
 117        print_with_extension)) {
 118     settings_.set_dpi(kDefaultPdfDpi);
 119     gfx::Size paper_size(GetPdfPaperSizeDeviceUnits());
 120     if (!settings_.requested_media().size_microns.IsEmpty()) {
 121       float device_microns_per_device_unit =
 122           static_cast<float>(kMicronsPerInch) /
 123           settings_.device_units_per_inch();
 124       paper_size = gfx::Size(settings_.requested_media().size_microns.width() /
 125                                  device_microns_per_device_unit,
 126                              settings_.requested_media().size_microns.height() /
 127                                  device_microns_per_device_unit);
 128     }
 129     gfx::Rect paper_rect(0, 0, paper_size.width(), paper_size.height());
 130     if (print_to_cloud || print_with_privet) {
 131       paper_rect.Inset(
 132           kCloudPrintMarginInch * settings_.device_units_per_inch(),
 133           kCloudPrintMarginInch * settings_.device_units_per_inch());
 134     }
 135     settings_.SetPrinterPrintableArea(paper_size, paper_rect, true);
 136     return OK;
 137   }
 138
 139   return UpdatePrinterSettings(
 140       open_in_external_preview,
 141       job_settings.FindBoolKey(kSettingShowSystemDialog).value_or(false),
 142       job_settings.FindIntKey(kSettingPreviewPageCount).value_or(0));
 143 }
 144
 145 #if defined(OS_CHROMEOS)
 146 PrintingContext::Result PrintingContext::UpdatePrintSettingsFromPOD(
 147     std::unique_ptr<PrintSettings> job_settings) {
 148   ResetSettings();
 149   settings_ = *job_settings;
 150
 151   return UpdatePrinterSettings(false /* external_preview */,
 152                                false /* show_system_dialog */,
 153                                0 /* page_count is only used on Android */);
 154 }
 155 #endif
 156
 157 }  // namespace printing