printing/printing_context_gtk.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/printing_context_gtk.h"
   6
   7 #include <gtk/gtk.h>
   8 #include <gtk/gtkunixprint.h>
   9
  10 #include "base/logging.h"
  11 #include "base/values.h"
  12 #include "printing/metafile.h"
  13 #include "printing/print_dialog_gtk_interface.h"
  14 #include "printing/print_job_constants.h"
  15 #include "printing/units.h"
  16
  17 namespace {
  18
  19 // Function pointer for creating print dialogs. |callback| is only used when
  20 // |show_dialog| is true.
  21 printing::PrintDialogGtkInterface* (*create_dialog_func_)(
  22     printing::PrintingContextGtk* context) = NULL;
  23
  24 }  // namespace
  25
  26 namespace printing {
  27
  28 // static
  29 PrintingContext* PrintingContext::Create(const std::string& app_locale) {
  30   return static_cast<PrintingContext*>(new PrintingContextGtk(app_locale));
  31 }
  32
  33 PrintingContextGtk::PrintingContextGtk(const std::string& app_locale)
  34     : PrintingContext(app_locale),
  35       print_dialog_(NULL) {
  36 }
  37
  38 PrintingContextGtk::~PrintingContextGtk() {
  39   ReleaseContext();
  40
  41   if (print_dialog_)
  42     print_dialog_->ReleaseDialog();
  43 }
  44
  45 // static
  46 void PrintingContextGtk::SetCreatePrintDialogFunction(
  47     PrintDialogGtkInterface* (*create_dialog_func)(
  48         PrintingContextGtk* context)) {
  49   DCHECK(create_dialog_func);
  50   DCHECK(!create_dialog_func_);
  51   create_dialog_func_ = create_dialog_func;
  52 }
  53
  54 void PrintingContextGtk::PrintDocument(const Metafile* metafile) {
  55   DCHECK(print_dialog_);
  56   DCHECK(metafile);
  57   print_dialog_->PrintDocument(metafile, document_name_);
  58 }
  59
  60 void PrintingContextGtk::AskUserForSettings(
  61     gfx::NativeView parent_view,
  62     int max_pages,
  63     bool has_selection,
  64     const PrintSettingsCallback& callback) {
  65   print_dialog_->ShowDialog(has_selection, callback);
  66 }
  67
  68 PrintingContext::Result PrintingContextGtk::UseDefaultSettings() {
  69   DCHECK(!in_print_job_);
  70
  71   ResetSettings();
  72   if (!print_dialog_) {
  73     print_dialog_ = create_dialog_func_(this);
  74     print_dialog_->AddRefToDialog();
  75   }
  76   print_dialog_->UseDefaultSettings();
  77
  78   return OK;
  79 }
  80
  81 PrintingContext::Result PrintingContextGtk::UpdatePrinterSettings(
  82     const DictionaryValue& job_settings, const PageRanges& ranges) {
  83   DCHECK(!in_print_job_);
  84
  85   if (!print_dialog_) {
  86     print_dialog_ = create_dialog_func_(this);
  87     print_dialog_->AddRefToDialog();
  88   }
  89
  90   if (!print_dialog_->UpdateSettings(job_settings, ranges, &settings_))
  91     return OnError();
  92
  93   return OK;
  94 }
  95
  96 PrintingContext::Result PrintingContextGtk::InitWithSettings(
  97     const PrintSettings& settings) {
  98   DCHECK(!in_print_job_);
  99
 100   settings_ = settings;
 101
 102   return OK;
 103 }
 104
 105 PrintingContext::Result PrintingContextGtk::NewDocument(
 106     const string16& document_name) {
 107   DCHECK(!in_print_job_);
 108   in_print_job_ = true;
 109
 110   document_name_ = document_name;
 111
 112   return OK;
 113 }
 114
 115 PrintingContext::Result PrintingContextGtk::NewPage() {
 116   if (abort_printing_)
 117     return CANCEL;
 118   DCHECK(in_print_job_);
 119
 120   // Intentional No-op.
 121
 122   return OK;
 123 }
 124
 125 PrintingContext::Result PrintingContextGtk::PageDone() {
 126   if (abort_printing_)
 127     return CANCEL;
 128   DCHECK(in_print_job_);
 129
 130   // Intentional No-op.
 131
 132   return OK;
 133 }
 134
 135 PrintingContext::Result PrintingContextGtk::DocumentDone() {
 136   if (abort_printing_)
 137     return CANCEL;
 138   DCHECK(in_print_job_);
 139
 140   ResetSettings();
 141   return OK;
 142 }
 143
 144 void PrintingContextGtk::Cancel() {
 145   abort_printing_ = true;
 146   in_print_job_ = false;
 147 }
 148
 149 void PrintingContextGtk::ReleaseContext() {
 150   // Intentional No-op.
 151 }
 152
 153 gfx::NativeDrawingContext PrintingContextGtk::context() const {
 154   // Intentional No-op.
 155   return NULL;
 156 }
 157
 158 }  // namespace printing
 159