Get printing working in Aura.

printing/printing_context_cairo.cc

-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "printing/printing_context_cairo.h"
-
-// TODO(abodenha@chromium.org) The number of #ifdefs here has gotten too
-// large.  Refactor this code into separate files for Linux and Chrome OS.
-
-#include "base/logging.h"
-#include "base/values.h"
-#include "printing/metafile.h"
-#include "printing/print_job_constants.h"
-#include "printing/units.h"
-
-#if defined(OS_CHROMEOS)
-#include <unicode/ulocdata.h>
-#include "printing/print_settings_initializer_gtk.h"
-#else
-#include <gtk/gtk.h>
-#include <gtk/gtkprintunixdialog.h>
-#include "printing/print_dialog_gtk_interface.h"
-#endif  // defined(OS_CHROMEOS)
-
-#if !defined(OS_CHROMEOS)
-namespace {
-  // Function pointer for creating print dialogs. |callback| is only used when
-  // |show_dialog| is true.
-  static printing::PrintDialogGtkInterface* (*create_dialog_func_)(
-      printing::PrintingContextCairo* context) = NULL;
-}  // namespace
-#endif  // !defined(OS_CHROMEOS)
-
-namespace printing {
-
-// static
-PrintingContext* PrintingContext::Create(const std::string& app_locale) {
-  return static_cast<PrintingContext*>(new PrintingContextCairo(app_locale));
-}
-
-PrintingContextCairo::PrintingContextCairo(const std::string& app_locale)
-#if defined(OS_CHROMEOS)
-    : PrintingContext(app_locale) {
-#else
-    : PrintingContext(app_locale),
-      print_dialog_(NULL) {
-#endif
-}
-
-PrintingContextCairo::~PrintingContextCairo() {
-  ReleaseContext();
-
-#if !defined(OS_CHROMEOS)
-  if (print_dialog_)
-    print_dialog_->ReleaseDialog();
-#endif
-}
-
-#if !defined(OS_CHROMEOS)
-// static
-void PrintingContextCairo::SetCreatePrintDialogFunction(
-    PrintDialogGtkInterface* (*create_dialog_func)(
-        PrintingContextCairo* context)) {
-  DCHECK(create_dialog_func);
-  DCHECK(!create_dialog_func_);
-  create_dialog_func_ = create_dialog_func;
-}
-
-void PrintingContextCairo::PrintDocument(const Metafile* metafile) {
-  DCHECK(print_dialog_);
-  DCHECK(metafile);
-  print_dialog_->PrintDocument(metafile, document_name_);
-}
-#endif  // !defined(OS_CHROMEOS)
-
-void PrintingContextCairo::AskUserForSettings(
-    gfx::NativeView parent_view,
-    int max_pages,
-    bool has_selection,
-    PrintSettingsCallback* callback) {
-#if defined(OS_CHROMEOS)
-  callback->Run(OK);
-#else
-  print_dialog_->ShowDialog(callback);
-#endif  // defined(OS_CHROMEOS)
-}
-
-PrintingContext::Result PrintingContextCairo::UseDefaultSettings() {
-  DCHECK(!in_print_job_);
-
-  ResetSettings();
-#if defined(OS_CHROMEOS)
-  // For Chrome OS use default values based on the app locale rather than rely
-  // on GTK. Note that relying on the app locale does not work well if it is
-  // different from the system locale, e.g. a user using Chinese ChromeOS in the
-  // US. Eventually we need to get the defaults from the printer.
-  // TODO(sanjeevr): We need a better feedback loop between the cloud print
-  // dialog and this code.
-  int dpi = 300;
-  gfx::Size physical_size_device_units;
-  gfx::Rect printable_area_device_units;
-  int32_t width = 0;
-  int32_t height = 0;
-  UErrorCode error = U_ZERO_ERROR;
-  ulocdata_getPaperSize(app_locale_.c_str(), &height, &width, &error);
-  if (error != U_ZERO_ERROR) {
-    // If the call failed, assume a paper size of 8.5 x 11 inches.
-    LOG(WARNING) << "ulocdata_getPaperSize failed, using 8.5 x 11, error: "
-                 << error;
-    width = static_cast<int>(8.5 * dpi);
-    height = static_cast<int>(11 * dpi);
-  } else {
-    // ulocdata_getPaperSize returns the width and height in mm.
-    // Convert this to pixels based on the dpi.
-    width = static_cast<int>(ConvertUnitDouble(width, 25.4, 1.0) * dpi);
-    height = static_cast<int>(ConvertUnitDouble(height, 25.4, 1.0) * dpi);
-  }
-
-  physical_size_device_units.SetSize(width, height);
-  printable_area_device_units.SetRect(
-      static_cast<int>(PrintSettingsInitializerGtk::kLeftMarginInInch * dpi),
-      static_cast<int>(PrintSettingsInitializerGtk::kTopMarginInInch * dpi),
-      width - (PrintSettingsInitializerGtk::kLeftMarginInInch +
-          PrintSettingsInitializerGtk::kRightMarginInInch) * dpi,
-      height - (PrintSettingsInitializerGtk::kTopMarginInInch +
-          PrintSettingsInitializerGtk::kBottomMarginInInch) * dpi);
-
-  settings_.set_dpi(dpi);
-  settings_.SetPrinterPrintableArea(physical_size_device_units,
-                                    printable_area_device_units,
-                                    dpi);
-#else
-  if (!print_dialog_) {
-    print_dialog_ = create_dialog_func_(this);
-    print_dialog_->AddRefToDialog();
-  }
-  print_dialog_->UseDefaultSettings();
-#endif  // defined(OS_CHROMEOS)
-
-  return OK;
-}
-
-PrintingContext::Result PrintingContextCairo::UpdatePrinterSettings(
-    const DictionaryValue& job_settings, const PageRanges& ranges) {
-#if defined(OS_CHROMEOS)
-  bool landscape = false;
-
-  if (!job_settings.GetBoolean(kSettingLandscape, &landscape))
-    return OnError();
-
-  if (settings_.dpi() == 0)
-    UseDefaultSettings();
-
-  settings_.SetOrientation(landscape);
-  settings_.ranges = ranges;
-
-  return OK;
-#else
-  DCHECK(!in_print_job_);
-
-  if (!print_dialog_) {
-    print_dialog_ = create_dialog_func_(this);
-    print_dialog_->AddRefToDialog();
-  }
-
-  if (!print_dialog_->UpdateSettings(job_settings, ranges, &settings_))
-    return OnError();
-
-  return OK;
-#endif
-}
-
-PrintingContext::Result PrintingContextCairo::InitWithSettings(
-    const PrintSettings& settings) {
-  DCHECK(!in_print_job_);
-
-  settings_ = settings;
-
-  return OK;
-}
-
-PrintingContext::Result PrintingContextCairo::NewDocument(
-    const string16& document_name) {
-  DCHECK(!in_print_job_);
-  in_print_job_ = true;
-
-#if !defined(OS_CHROMEOS)
-  document_name_ = document_name;
-#endif  // !defined(OS_CHROMEOS)
-
-  return OK;
-}
-
-PrintingContext::Result PrintingContextCairo::NewPage() {
-  if (abort_printing_)
-    return CANCEL;
-  DCHECK(in_print_job_);
-
-  // Intentional No-op.
-
-  return OK;
-}
-
-PrintingContext::Result PrintingContextCairo::PageDone() {
-  if (abort_printing_)
-    return CANCEL;
-  DCHECK(in_print_job_);
-
-  // Intentional No-op.
-
-  return OK;
-}
-
-PrintingContext::Result PrintingContextCairo::DocumentDone() {
-  if (abort_printing_)
-    return CANCEL;
-  DCHECK(in_print_job_);
-
-  ResetSettings();
-  return OK;
-}
-
-void PrintingContextCairo::Cancel() {
-  abort_printing_ = true;
-  in_print_job_ = false;
-}
-
-void PrintingContextCairo::ReleaseContext() {
-  // Intentional No-op.
-}
-
-gfx::NativeDrawingContext PrintingContextCairo::context() const {
-  // Intentional No-op.
-  return NULL;
-}
-
-}  // namespace printing