Module: Yast::PrinterBasicmodifyInclude

Defined in:
../../src/include/printer/basicmodify.rb

Instance Method Summary (collapse)

Instance Method Details

- (Object) BasicModifyDialog

BasicModifyDialog dialog

Returns:

  • dialog result



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# File '../../src/include/printer/basicmodify.rb', line 46

def BasicModifyDialog
  Builtins.y2milestone(
    "entering BasicModifyDialog for queue '%1'",
    Ops.get(Printer.queues, Printer.selected_queues_index, {})
  )
  any_model_driver_filter_input_text = _("any model")
  non_matching_fallback_driver_filter_string = "qqqqqqqqqq"
  commandline = ""
  name = Ops.get(
    Printer.queues,
    [Printer.selected_queues_index, "name"],
    ""
  )
  uri = Ops.get(Printer.queues, [Printer.selected_queues_index, "uri"], "")
  description = Ops.get(
    Printer.queues,
    [Printer.selected_queues_index, "description"],
    ""
  )
  location = Ops.get(
    Printer.queues,
    [Printer.selected_queues_index, "location"],
    ""
  )
  ppd = Ops.get(Printer.queues, [Printer.selected_queues_index, "ppd"], "")
  is_default = false
  if "yes" ==
      Ops.get(
        Printer.queues,
        [Printer.selected_queues_index, "default"],
        ""
      )
    is_default = true
  end
  accepting_jobs = true
  if "yes" ==
      Ops.get(
        Printer.queues,
        [Printer.selected_queues_index, "rejecting"],
        ""
      )
    accepting_jobs = false
  end
  printing_enabled = true
  if "yes" ==
      Ops.get(
        Printer.queues,
        [Printer.selected_queues_index, "disabled"],
        ""
      )
    printing_enabled = false
  end
  # Title of the Basic Modify Dialog where %1 will be replaced by the queue name.
  # The actual queue name is a system value which cannot be translated:
  caption = Builtins.sformat(_("Modify %1"), name)
  # Clear whatever content of a previous dialog which would show up here for several seconds
  # until all the following stuff is done before Wizard::SetContentsButtons is called
  # which finally shows the right content for this dialog.
  Wizard.SetContents(
    caption,
    Empty(),
    Ops.get_string(@HELPS, "basic_modify_dialog", ""),
    false,
    false
  )
  Wizard.HideAbortButton
  model = Printer.DeriveModelName(description, 0)
  driver_filter_input_text = Printer.DeriveModelName(model, 0)
  driver_filter_string = Printer.DeriveDriverFilterString(
    driver_filter_input_text
  )
  nick_name = ""
  driver_options_content = Empty()
  paper_choice_content = Empty()
  a4_paper_choice = false
  a4_default_paper = false
  a4_paper_choice_radio_button = RadioButton(Id(:a4), Opt(:disabled), "A&4")
  letter_paper_choice = false
  letter_default_paper = false
  letter_paper_choice_radio_button = RadioButton(
    Id(:letter),
    Opt(:disabled),
    "Le&tter"
  )
  default_paper_size = ""
  # Only local queues can be selected in the overview dialog to be modified.
  # For a local raw queue ppd is the empty string.
  # For a local queue with a System V style interface script ppd is "/etc/cups/interfaces/<name-of-the-script>".
  # For a local queue with URI "ipp://server/printers/queue" ppd is "ipp://server/printers/queue.ppd".
  # For a normal local queue with URI "ipp://server/resource" ppd is "/etc/cups/ppd/<queue-name>.ppd".
  # For a normal local queue ppd is "/etc/cups/ppd/<queue-name>.ppd".
  # The leading part "/etc/" may vary depending on how the local cupsd
  # is installed or configured, see "/usr/bin/cups-config --serverroot".
  if "" != ppd
    commandline = Ops.add("test -r ", ppd)
    if Printerlib.ExecuteBashCommand(commandline)
      driver_options_content = PushButton(
        Id(:driver_options),
        # Label of a PushButton to go to a dialog
        # to set all available options for the printer driver
        # which is currently used for a print queue:
        _("All &Options for the Current Driver")
      )
    else
      ppd = ""
    end
  end
  if Builtins.issubstring(ppd, "/cups/ppd/")
    # which suppresses it in certain "lpinfo -m" output.
    # Note the YCP quoting: \" becomes " and \\n becomes \n in the commandline.
    commandline = Ops.add(
      Ops.add("grep '^*NickName' ", ppd),
      " | cut -s -d '\"' -f2 | sed -e 's/(recommended)//' -e 's/^[[:space:]]*//' -e 's/[[:space:]]*$//' | tr -s ' ' | tr -d '\\n'"
    )
    if Printerlib.ExecuteBashCommand(commandline)
      Builtins.y2milestone(
        "'%1' stdout (nick_name) is: '%2'",
        commandline,
        Ops.get_string(Printerlib.result, "stdout", "")
      )
      nick_name = Ops.get_string(Printerlib.result, "stdout", "")
      driver_filter_input_text = Printer.DeriveModelName(nick_name, 0)
      driver_filter_string = Printer.DeriveDriverFilterString(
        driver_filter_input_text
      )
    end
    if !Printer.DetermineDriverOptions("")
      # (e.g. the driver options from another previously modified queue):
      Printer.driver_options = []
    end
    Builtins.foreach(Printer.driver_options) do |driver_option|
      if "PageSize" == Ops.get_string(driver_option, "keyword", "")
        Builtins.foreach(Ops.get_list(driver_option, "values", [])) do |value|
          if "*A4" == value
            default_paper_size = "A4"
            a4_default_paper = true
            a4_paper_choice_radio_button = RadioButton(Id(:a4), "A&4", true)
          else
            if "A4" == value
              a4_paper_choice = true
              a4_paper_choice_radio_button = RadioButton(Id(:a4), "A&4")
            else
              if "*Letter" == value
                default_paper_size = "Letter"
                letter_default_paper = true
                letter_paper_choice_radio_button = RadioButton(
                  Id(:letter),
                  "Le&tter",
                  true
                )
              else
                if "Letter" == value
                  letter_paper_choice = true
                  letter_paper_choice_radio_button = RadioButton(
                    Id(:letter),
                    "Le&tter"
                  )
                else
                  if "*" == Builtins.substring(value, 0, 1)
                    default_paper_size = Builtins.substring(value, 1)
                  end
                end
              end
            end
          end
        end 

        Builtins.y2milestone(
          "Default paper size is: '%1'",
          default_paper_size
        )
      end
    end
  end
  # DefaultPageSize is required according to the Adobe PPD specification.
  # Nevertheless we don't rely on correct PPDs (e.g. whatever "third-party" PPDs)
  # and test if it really exists in the actually used PPD:
  if "" != default_paper_size
    default_paper_size_label = _("Default Paper Size of the Current Driver")
    if a4_default_paper || letter_default_paper
      paper_choice_content = RadioButtonGroup(
        Id(:paper_size_radio_buttons),
        HBox(
          Label(default_paper_size_label),
          HSpacing(2),
          a4_paper_choice_radio_button,
          HSpacing(1),
          letter_paper_choice_radio_button
        )
      )
    else
      if a4_paper_choice || letter_paper_choice
        paper_choice_content = RadioButtonGroup(
          Id(:paper_size_radio_buttons),
          HBox(
            Label(
              Ops.add(
                Ops.add(
                  Ops.add(default_paper_size_label, ": "),
                  default_paper_size
                ),
                " "
              )
            ),
            HSpacing(2),
            a4_paper_choice_radio_button,
            HSpacing(1),
            letter_paper_choice_radio_button
          )
        )
      else
        paper_choice_content = Label(
          Ops.add(
            Ops.add(default_paper_size_label, ": "),
            default_paper_size
          )
        )
      end
    end
  end
  # If the currently used driver is replaced by another driver,
  # show the same content as in the BasicAddDialog to set the default paper size:
  new_driver_paper_choice_content = RadioButtonGroup(
    Id(:paper_size_radio_buttons),
    HBox(
      Label(_("Default paper size (if printer and driver supports it)")), # Label of a RadioButtonGroup to specify the default paper size:
      # Have none of the RadioButtons preselected which means that
      # by default the CUPS default is used for the default paper size.
      # For the CUPS 1.3 default see http://www.cups.org/str.php?L2846
      # For CUPS 1.4 the default depends on the "DefaultPaperSize"
      # setting in cupsd.conf
      # see https://bugzilla.novell.com/show_bug.cgi?id=395760
      # and http://www.cups.org/str.php?L2848
      HSpacing(2),
      RadioButton(Id(:a4), "A&4"),
      HSpacing(1),
      RadioButton(Id(:letter), "Le&tter"),
      HStretch()
    )
  )
  # Usually the id in the connection items is the matching index number in the connections list.
  # Here the id of the current connection is set to -1 because the uri of the current connection
  # is derived from the queues list and this uri may be not present in the connections list
  # for example when the queue has a special non-autodetectable DeviceURI (e.g. for iPrint)
  # or when the queue is for an USB printer which is currently not connected (e.g. a laptop user).
  # Therefore -1 (which means "invalid index number in the connections list") is used to be safe
  # and additionally -1 is used to distinguish when the current connection is kept
  # or when the connection was modified (then the id would be > 0 and valid in the connections list).
  # The current_connection item is preselected because it is the first entry in the
  # table of connections via prepend():
  current_connection = Item(
    Id(-1),
    _("Current Connection") + ": ",
    Ops.add(uri, " "),
    description
  )
  # Usually the id in the driver items is the matching index number in the ppds list.
  # Here the id of the current driver is set to -1 because the ppd for the current driver
  # is derived from the queues list and this ppd may be not present in the ppds list
  # for example when the queue has a ppd which is not in /usr/share/cups/model/ (e.g. a manually set up queue)
  # or when the ppd for the queue in /etc/cups/ppd/ was modified (e.g. different default option settings).
  # Therefore -1 (which means "invalid index number in the ppds list") is used to be safe
  # and additionally -1 is used to distinguish when the current driver is kept
  # or when the driver was modified (then the id would be > 0 and valid in the ppds list).
  # Furthermore the current_driver item is preselected via the additional "true".
  current_driver = Item(
    Id(-1),
    # Do not change or translate "raw", it is a technical term when no driver is used.
    # Do not change or translate "System V style interface script", it is a technical term.
    _(
      "No driver is used (it is a 'raw' queue or a 'System V style interface script' is used)"
    ),
    true
  )
  if "" != nick_name
    current_driver = Item(
      Id(-1),
      Ops.add(_("Current Driver") + ": ", nick_name),
      true
    )
  end
  if "" == driver_filter_string
    # to avoid that the full list of thousands of PPDs is shown automatically
    # because it can take a very long time until the user can proceed:
    driver_filter_input_text = _("Enter your printer model here.")
    driver_filter_string = non_matching_fallback_driver_filter_string
  end
  contents = VBox(
    VBox(
      HBox(
        Label(_("Connection")), # Caption for a Table with a list of printer connections:
        HStretch(),
        PushButton(
          Id(:more_connections),
          # Label of a PushButton to restart printer autodetection
          # to show more available printer connections
          # in the Table with a list of printer connections:
          _("&Detect More")
        ),
        PushButton(
          Id(:connection_wizard),
          # Label of a PushButton to go to the "Connection Wizard"
          # to specify the printer connection individually:
          _("Connection &Wizard")
        )
      ),
      ReplacePoint(
        Id(:connection_selection_replace_point),
        Table(
          Id(:connection_selection),
          # By default there is no UserInput()
          # if only something was selected in the Table
          # (without clicking additionally a button)
          # but the notify and immediate options
          # forces UserInput() in this case:
          Opt(:notify, :immediate, :keepSorting),
          # Headers of a Table with a list of printer connections:
          Header(
            # Printer model name:
            _("Model"),
            # Header of a Table column with a list of printer connections.
            # Connection of the printer (e.g. via USB or via parallel port):
            _("Connection"),
            # Header of a Table column with a list of printer connections.
            # Additional description of the printer or its particular connection:
            _("Description")
          ), # Header of a Table column with a list of printer connections.
          Builtins.prepend(
            Printer.ConnectionItems("BasicAddDialog"),
            current_connection
          )
        )
      )
    ),
    VStretch(),
    VBox(
      Left(
        Label(
          _(
            "Adjust Options of the Current Driver or Assign a Different Driver"
          )
        ) # Caption for a printer driver selection:
      ),
      ReplacePoint(
        Id(:paper_choice_and_driver_options_replace_point),
        VBox(Left(paper_choice_content), Left(driver_options_content))
      ),
      HBox(
        ReplacePoint(
          Id(:apply_driver_filter_replace_point),
          PushButton(
            Id(:apply_driver_filter),
            # This button must be the default
            # (it is activated when the user pressed the Enter key)
            # because when the user has clicked into InputField to enter something
            # it is normal to finish entering by pressing the Enter key
            # but if the Enter key was linked to 'Next' or 'Back',
            # the user would get the wrong action.
            Opt(:default),
            # Label of a PushButton to search a list for a search string
            # and then show the search result:
            _("&Search for")
          )
        ),
        ReplacePoint(
          Id(:driver_filter_input_replace_point),
          InputField(
            Id(:driver_filter_input),
            Opt(:hstretch),
            # No InputField header because there is the "Caption for a printer driver selection":
            "",
            # Make it lowercase to make it more obvious that this is a search string
            # which the user could change as needed and not a final fixed model name.
            # Many users do not understand that the model name which is preset here
            # (i.e. initially for this dialog and when the user selected a connection)
            # as search string can be changed by the user as needed to find drivers.
            Builtins.tolower(driver_filter_input_text)
          )
        ),
        PushButton(
          Id(:more_drivers),
          # Label of a PushButton to find and show more available printer drivers:
          _("&Find More")
        ),
        PushButton(
          Id(:add_driver),
          # Label of a PushButton to go to the "Add Driver" dialog
          # to install or remove driver packages (and perhaps download it before):
          _("Driver &Packages")
        )
      ),
      ReplacePoint(
        Id(:driver_selection_replace_point),
        SelectionBox(
          Id(:driver_selection),
          # By default there is no UserInput()
          # if only something was selected in the SelectionBox
          # (without clicking additionally a button)
          # but the notify option forces UserInput() in this case:
          Opt(:notify),
          "",
          Builtins.prepend(
            Printer.DriverItems(driver_filter_string, false),
            current_driver
          )
        )
      )
    ),
    VStretch(),
    VBox(
      HBox(
        TextEntry(
          Id(:description_input),
          Opt(:hstretch),
          # Label of a TextEntry for a short printer driver description (only one line):
          _("Description &Text"),
          description
        ),
        HSpacing(2),
        TextEntry(
          Id(:location_input),
          Opt(:hstretch),
          # Label of a TextEntry for printer location string:
          _("&Location"),
          location
        )
      ),
      Left(
        HBox(
          CheckBox(
            Id(:default_queue_checkbox),
            # CheckBox to set a local print queue to be the default queue:
            _("&Use as Default"),
            is_default
          ),
          HSpacing(2),
          CheckBox(
            Id(:accept_jobs_checkbox),
            # CheckBox to set a local print queue to accept print jobs:
            _("Accept Print &Jobs"),
            accepting_jobs
          ),
          HSpacing(2),
          CheckBox(
            Id(:enable_printing_checkbox),
            # CheckBox to enable printing for a local print queue:
            _("&Enable Printing"),
            printing_enabled
          )
        )
      )
    )
  )
  # According to the YaST Style Guide (dated Thu, 06 Nov 2008)
  # there is no longer a "abort" functionality which exits the whole module.
  # Instead this button is now named "Cancel" and its functionality is
  # to go back to the Overview dialog (i.e. what the "back" button would do)
  # because it reads "Cancel - Closes the window and returns to the overview."
  # Therefore the button with the "abort" functionality is not shown at all
  # and the button with the "back" functionality is named "Cancel".
  # According to the YaST Style Guide (dated Thu, 06 Nov 2008)
  # the "finish" button in a single (step) configuration dialog must now be named "OK".
  Wizard.SetContentsButtons(
    caption,
    contents,
    Ops.get_string(@HELPS, "basic_modify_dialog", ""),
    # Set a new label for the "back" button, see the comment above:
    Label.CancelButton,
    # Set a new label for the "next" button, see the comment above:
    Label.OKButton
  )
  Wizard.HideAbortButton
  # Try to preselect the connection which matches to the current_device_uri
  # if such a connection exists in the connection_selection table:
  if Ops.greater_or_equal(Printer.selected_connections_index, 0)
    # exists in the connection_selection table because the Printer::ConnectionItems function
    # sets Printer::selected_connections_index != -1 only if such an item exists in the table
    # so that this item can be preselected:
    Builtins.y2milestone(
      "Preselected connection: '%1'",
      Ops.get(Printer.connections, Printer.selected_connections_index, {})
    )
    UI.ChangeWidget(
      :connection_selection,
      :CurrentItem,
      Id(Printer.selected_connections_index)
    )
    # In contrast to BasicAddDialog fake user input of a connection_selection here only
    # when a connection was preselected because initially drivers are shown which
    # match to the description of the queue which is to be modified here
    # but when the user had used the Connection Wizard, a different connection
    # becomes usually preselected and this requires different drivers to be shown:
    UI.FakeUserInput(:connection_selection)
  end
  user_input = nil
  while true
    # (the default widget is the result of UI::UserInput when the user pressed the Enter key)
    # regardless whatever function call or UI bug (e.g. bnc#558900) may have changed the default widget:
    UI.ReplaceWidget(
      Id(:apply_driver_filter_replace_point),
      PushButton(
        Id(:apply_driver_filter),
        # This button must be the default
        # (it is activated when the user pressed the Enter key)
        # because when the user has clicked into InputField to enter something
        # it is normal to finish entering by pressing the Enter key
        # but if the Enter key was linked to 'Next' or 'Back',
        # the user would get the wrong action.
        Opt(:default),
        # Label of a PushButton to search a list for a search string
        # and then show the search result:
        _("&Search for")
      )
    )
    if :apply_driver_filter == user_input
      # set the focus to the InputField for the driver search string
      # so that the user can just continue typing other search strings.
      # In contrast when the user is not already searching drivers,
      # it is annoying in particular in the text-only ncurses UI
      # when the focus becomes always set to the driver search string InputField.
      UI.SetFocus(:driver_filter_input)
    end
    # Wait for user input:
    user_input = UI.UserInput
    if :abort == user_input || :cancel == user_input || :back == user_input
      break
    end
    if :next == user_input
      commandline = Ops.add(
        Ops.add("/usr/sbin/lpadmin -h localhost -p '", name),
        "'"
      )
      something_has_changed = false
      set_paper_size_later = false
      selected_connection_index = Convert.to_integer(
        UI.QueryWidget(Id(:connection_selection), :CurrentItem)
      )
      if Ops.greater_or_equal(selected_connection_index, 0)
        uri = Ops.get(
          Printer.connections,
          [selected_connection_index, "uri"],
          ""
        )
        if "" != uri
          commandline = Ops.add(
            Ops.add(Ops.add(commandline, " -v '"), uri),
            "'"
          )
          Printer.current_device_uri = uri
          something_has_changed = true
        end
      end
      selected_ppd_index = Convert.to_integer(
        UI.QueryWidget(Id(:driver_selection), :CurrentItem)
      )
      if Ops.greater_or_equal(selected_ppd_index, 0)
        ppd = Ops.get(Printer.ppds, [selected_ppd_index, "ppd"], "")
        if "" != ppd
          commandline = Ops.add(
            Ops.add(Ops.add(commandline, " -m '"), ppd),
            "'"
          )
          something_has_changed = true
          # The paper size for a new driver will be only set
          # after the new driver was actually successfully set:
          set_paper_size_later = true
        end
      else
        # Depending on the currently used driver no paper size selection might exists
        # in particular not for a 'raw' queue or when a 'System V style interface script' is used:
        if UI.WidgetExists(Id(:paper_size_radio_buttons))
          paper_size = UI.QueryWidget(
            Id(:paper_size_radio_buttons),
            :CurrentButton
          )
          if :a4 == paper_size && "A4" != default_paper_size
            commandline = Ops.add(commandline, " -o PageSize=A4")
            something_has_changed = true
          end
          if :letter == paper_size && "Letter" != default_paper_size
            commandline = Ops.add(commandline, " -o PageSize=Letter")
            something_has_changed = true
          end
        end
      end
      description_input = Convert.to_string(
        UI.QueryWidget(Id(:description_input), :Value)
      )
      # Delete ' characters because they are used for quoting in the bash commandline:
      description_input = Builtins.deletechars(description_input, "'")
      # Leading and/or trailing and/or sequences of spaces look ugly and are condensed here:
      description_input = Builtins.mergestring(
        Builtins.filter(Builtins.splitstring(description_input, " ")) do |word|
          "" != word
        end,
        " "
      )
      if description_input != description
        commandline = Ops.add(
          Ops.add(Ops.add(commandline, " -D '"), description_input),
          "'"
        )
        something_has_changed = true
      end
      location_input = Convert.to_string(
        UI.QueryWidget(Id(:location_input), :Value)
      )
      # Delete ' characters because they are used for quoting in the bash commandline:
      location_input = Builtins.deletechars(location_input, "'")
      # Leading and/or trailing and/or sequences of spaces look ugly and are condensed here:
      location_input = Builtins.mergestring(
        Builtins.filter(Builtins.splitstring(location_input, " ")) do |word|
          "" != word
        end,
        " "
      )
      if location_input != location
        commandline = Ops.add(
          Ops.add(Ops.add(commandline, " -L '"), location_input),
          "'"
        )
        something_has_changed = true
      end
      is_default_input = Convert.to_boolean(
        UI.QueryWidget(Id(:default_queue_checkbox), :Value)
      )
      if is_default_input != is_default
        something_has_changed = true
        if is_default_input
          # with other option settings so that a separate lpadmin command is called:
          commandline = Ops.add(
            Ops.add(
              Ops.add(commandline, " ; /usr/sbin/lpadmin -h localhost -d '"),
              name
            ),
            "'"
          )
        else
          # see http://www.cups.org/newsgroups.php?gcups.general+v:31874
          # All one can do is set up a dummy queue, make it the default, and remove it.
          # To be on the safe side the dummy queue neither accepts jobs
          # nor is printing enabled (no '-E' as last lpadmin option)
          # nor is it announced ("shared") to whatever BrowseAddress in cupsd.conf.
          # Here I assume blindly that no queue "yast2unsetdefaultqueue" exists.
          commandline = Ops.add(
            Ops.add(
              Ops.add(
                commandline,
                " ; /usr/sbin/lpadmin -h localhost -p yast2unsetdefaultqueue -v file:/dev/null -o printer-is-shared=false"
              ),
              " ; /usr/sbin/lpadmin -h localhost -d yast2unsetdefaultqueue"
            ),
            " ; /usr/sbin/lpadmin -h localhost -x yast2unsetdefaultqueue"
          )
        end
      end
      accepting_jobs_input = Convert.to_boolean(
        UI.QueryWidget(Id(:accept_jobs_checkbox), :Value)
      )
      if accepting_jobs_input != accepting_jobs
        something_has_changed = true
        if accepting_jobs_input
          commandline = Ops.add(
            Ops.add(
              Ops.add(commandline, " ; /usr/sbin/accept -h localhost '"),
              name
            ),
            "'"
          )
        else
          commandline = Ops.add(
            Ops.add(
              Ops.add(commandline, " ; /usr/sbin/reject -h localhost '"),
              name
            ),
            "'"
          )
        end
      end
      printing_enabled_input = Convert.to_boolean(
        UI.QueryWidget(Id(:enable_printing_checkbox), :Value)
      )
      if printing_enabled_input != printing_enabled
        something_has_changed = true
        if printing_enabled_input
          commandline = Ops.add(
            Ops.add(
              Ops.add(commandline, " ; /usr/sbin/cupsenable -h localhost '"),
              name
            ),
            "'"
          )
        else
          commandline = Ops.add(
            Ops.add(
              Ops.add(
                commandline,
                " ; /usr/sbin/cupsdisable -h localhost '"
              ),
              name
            ),
            "'"
          )
        end
      end
      if something_has_changed
        Wizard.DisableBackButton
        Wizard.DisableNextButton
        if !Printerlib.ExecuteBashCommand(commandline)
          Popup.ErrorDetails(
            # where %1 will be replaced by the queue name.
            # Only a simple message because this error does not happen on a normal system
            # (i.e. a system which is not totally broken or totally messed up).
            Builtins.sformat(_("Failed to modify %1."), name),
            Ops.get_string(Printerlib.result, "stderr", "")
          )
        else
          # after a new driver was actually successfully set.
          if set_paper_size_later
            # in particular not for a 'raw' queue or when a 'System V style interface script' is used.
            # When a driver is set for a 'raw' queue or for a queue with a 'System V style interface script',
            # it is therefore not possible to set the default paper size for the new driver now
            # so that the user would have to run the modify dialog again to do this.
            if UI.WidgetExists(Id(:paper_size_radio_buttons))
              default_paper_size = ""
              paper_size = UI.QueryWidget(
                Id(:paper_size_radio_buttons),
                :CurrentButton
              )
              default_paper_size = "A4" if :a4 == paper_size
              default_paper_size = "Letter" if :letter == paper_size
              # Try to set the requested default_paper_size if it is an available choice for this queue.
              # If no default_paper_size is requested, the CUPS default is used.
              # For the CUPS 1.3 default see http://www.cups.org/str.php?L2846
              # For CUPS 1.4 the default depends on the "DefaultPaperSize" setting in cupsd.conf
              # see https://bugzilla.novell.com/show_bug.cgi?id=395760
              # and http://www.cups.org/str.php?L2848
              if "" != default_paper_size
                # Note the YCP quoting: \\< becomes \< and \\> becomes \> in the commandline.
                commandline = Ops.add(
                  Ops.add(
                    Ops.add(
                      Ops.add("lpoptions -h localhost -p '", name),
                      "' -l | grep '^PageSize.*\\<"
                    ),
                    default_paper_size
                  ),
                  "\\>'"
                )
                if Printerlib.ExecuteBashCommand(commandline)
                  commandline = Ops.add(
                    Ops.add(
                      Ops.add(
                        Ops.add("/usr/sbin/lpadmin -h localhost -p '", name),
                        "' -o 'PageSize="
                      ),
                      default_paper_size
                    ),
                    "'"
                  )
                  # Do not care if it fails to set the default_paper_size (i.e. show no error message to the user)
                  # because the default_paper_size setting is nice to have but not mandatoty for a working queue:
                  Printerlib.ExecuteBashCommand(commandline)
                end
              end
            end
          end
        end
        # Since CUPS 1.4 the new DirtyCleanInterval directive controls the delay when cupsd updates config files:
        if !Printerlib.WaitForUpdatedConfigFiles(
            _("Modifying Printer Setup")
          )
          Popup.WarningDetails(
            _("Modified Printer Configuration not yet Stored in the System"),
            # Explanation details of a Popup::WarningDetails.
            # The 'next dialog' is the overview dialog where the printer configurations are shown
            # which has a 'Refresh List' button to update the shown printer configurations:
            _(
              "If the next dialog does not show the expected modifications, wait some time and use the 'Refresh List' button."
            )
          )
        end
        Wizard.EnableBackButton
        Wizard.EnableNextButton
      else
        Builtins.y2milestone("Nothing changed in 'Modify' dialog.")
      end
      # Exit this dialog in any case:
      break
    end
    break if :connection_wizard == user_input
    break if :add_driver == user_input
    if :driver_options == user_input
      if Ops.less_than(Printer.selected_queues_index, 0) ||
          "" ==
            Ops.get(
              Printer.queues,
              [Printer.selected_queues_index, "name"],
              ""
            ) ||
          "remote" ==
            Ops.get(
              Printer.queues,
              [Printer.selected_queues_index, "config"],
              "remote"
            )
        Popup.AnyMessage(
          _("No driver options available"),
          # Body of a Popup::AnyMessage when "Driver Options" was selected:
          _(
            "Possible reasons: Nothing selected or it is a remote configuration."
          )
        )
        next
      end
      # Take a changed paper size setting into account.
      # The Printer::DriverOptionItems call stores the current setting
      # in Printer::driver_options so that it is known the DriverOptionsDialog
      if UI.WidgetExists(Id(:paper_size_radio_buttons))
        paper_size = UI.QueryWidget(
          Id(:paper_size_radio_buttons),
          :CurrentButton
        )
        if :a4 == paper_size && "A4" != default_paper_size
          Printer.DriverOptionItems("PageSize", "A4")
        end
        if :letter == paper_size && "Letter" != default_paper_size
          Printer.DriverOptionItems("PageSize", "Letter")
        end
      end
      # Exit this dialog and go to the DriverOptionsDialog via the sequencer in wizards.ycp:
      break
    end
    if :more_connections == user_input
      UI.ReplaceWidget(
        Id(:connection_selection_replace_point),
        Table(
          Id(:connection_selection),
          # By default there is no UserInput()
          # if only something was selected in the Table
          # (without clicking additionally a button)
          # but the notify and immediate options
          # forces UserInput() in this case:
          Opt(:notify, :immediate, :keepSorting),
          # Headers of a Table with a list of printer connections:
          Header(
            # Printer model name:
            _("Model"),
            # Header of a Table column with a list of printer connections.
            # Connection of the printer (e.g. via USB or via parallel port):
            _("Connection"),
            # Header of a Table column with a list of printer connections.
            # Additional description of the printer or its particular connection:
            _("Description")
          ), # Header of a Table column with a list of printer connections.
          Builtins.prepend(
            Printer.ConnectionItems("MoreConnections"),
            current_connection
          )
        )
      )
      # Try to preselect the connection which matches to the current_device_uri
      # if such a connection exists in the connection_selection table:
      if Ops.greater_or_equal(Printer.selected_connections_index, 0)
        # exists in the connection_selection table because the Printer::ConnectionItems function
        # sets Printer::selected_connections_index != -1 only if such an item exists in the table
        # so that this item can be preselected:
        Builtins.y2milestone(
          "Preselected connection: '%1'",
          Ops.get(
            Printer.connections,
            Printer.selected_connections_index,
            {}
          )
        )
        UI.ChangeWidget(
          :connection_selection,
          :CurrentItem,
          Id(Printer.selected_connections_index)
        )
      end
      UI.FakeUserInput(:connection_selection)
      next
    end
    if :connection_selection == user_input
      selected_connection_index = Convert.to_integer(
        UI.QueryWidget(Id(:connection_selection), :CurrentItem)
      )
      if nil == selected_connection_index
        Popup.AnyMessage(
          _("No Connection Selected"),
          # Body of a Popup::AnyMessage when no connection was selected:
          _("Select a connection.")
        )
        next
      end
      # selected_connection_index is -1 for the currently used connection
      # which is an invalid index in the connections list because
      # it means that the connection is not to be exchanged.
      # To be safe that the currently used connection cannot be exchanged
      # Printer::selected_connections_index is set to -1 in this case.
      if selected_connection_index != Printer.selected_connections_index
        Printer.selected_connections_index = selected_connection_index
        Printer.current_device_uri = Ops.get(
          Printer.connections,
          [selected_connection_index, "uri"],
          ""
        )
        Builtins.y2milestone(
          "Selected connection is: %1",
          Ops.get(Printer.connections, selected_connection_index, {})
        )
        # Invalidate any previously selected driver, if a connection is selected anew
        # or if a previously selected connection had changed:
        Printer.selected_ppds_index = -1
      end
      if Ops.greater_or_equal(selected_connection_index, 0)
        # derive the driver_filter_string from the model of the new connection:
        driver_filter_string = ""
        driver_filter_input_text = ""
        model = Ops.get(
          Printer.connections,
          [Printer.selected_connections_index, "model"],
          ""
        )
        Builtins.y2milestone("Drivers for '%1'", model)
        if "" != model && "unknown" != Builtins.tolower(model)
          driver_filter_input_text = Printer.DeriveModelName(model, 0)
          driver_filter_string = Printer.DeriveDriverFilterString(
            driver_filter_input_text
          )
        end
      else
        # derive the driver_filter_string from the NickName of the currently used PPD
        # or derive the driver_filter_string from the description of the currently used connection:
        if "" != nick_name
          driver_filter_input_text = Printer.DeriveModelName(nick_name, 0)
        else
          model = Printer.DeriveModelName(description, 0)
          driver_filter_input_text = Printer.DeriveModelName(model, 0)
        end
        driver_filter_string = Printer.DeriveDriverFilterString(
          driver_filter_input_text
        )
      end
      if "" == driver_filter_string
        # to avoid that the full list of thousands of PPDs is shown automatically
        # because it can take a very long time until the user can proceed:
        driver_filter_input_text = _("Enter your printer model here.")
        driver_filter_string = non_matching_fallback_driver_filter_string
      end
      UI.ReplaceWidget(
        Id(:driver_filter_input_replace_point),
        InputField(
          Id(:driver_filter_input),
          Opt(:hstretch),
          # No InputField header because there is the "Caption for a printer driver selection":
          "",
          # Make it lowercase to make it more obvious that this is a search string
          # which the user could change as needed and not a final fixed model name.
          # Many users do not understand that the model name which is preset here
          # (i.e. initially for this dialog and when the user selected a connection)
          # as search string can be changed by the user as needed to find drivers.
          Builtins.tolower(driver_filter_input_text)
        )
      )
      UI.ReplaceWidget(
        Id(:driver_selection_replace_point),
        SelectionBox(
          Id(:driver_selection),
          # By default there is no UserInput()
          # if only something was selected in the SelectionBox
          # (without clicking additionally a button)
          # but the notify option forces UserInput() in this case:
          Opt(:notify),
          "",
          Builtins.prepend(
            Printer.DriverItems(driver_filter_string, false),
            current_driver
          )
        )
      )
      # Do the same as if user_input == `driver_selection
      # but don't show a popup if nil == selected_ppd_index:
      selected_ppd_index = Convert.to_integer(
        UI.QueryWidget(Id(:driver_selection), :CurrentItem)
      )
      next if nil == selected_ppd_index
      # selected_ppd_index is -1 for the currently used driver
      # which is an invalid index in the ppds list because
      # it means that the driver is not to be exchanged.
      # To be safe that the currently used driver cannot be exchanged
      # Printer::selected_ppds_index is set to -1 in this case.
      if selected_ppd_index != Printer.selected_ppds_index
        Printer.selected_ppds_index = selected_ppd_index
        if Ops.greater_or_equal(selected_ppd_index, 0)
          Builtins.y2milestone(
            "Selected driver is: %1",
            Ops.get(Printer.ppds, selected_ppd_index, {})
          )
        else
          if "" != nick_name
            Builtins.y2milestone(
              "Selected currently used driver: '%1'",
              nick_name
            )
          else
            Builtins.y2milestone(
              "Selected currently used driver: No driver is used (it is a 'raw' queue or a 'System V style interface script' is used)"
            )
          end
        end
      end
      if Ops.greater_or_equal(selected_ppd_index, 0)
        # the widgets to change options for the currently used driver are removed:
        UI.ReplaceWidget(
          Id(:paper_choice_and_driver_options_replace_point),
          Empty()
        )
      else
        # the widgets to change options for the currently used driver are recreated:
        UI.ReplaceWidget(
          Id(:paper_choice_and_driver_options_replace_point),
          VBox(Left(paper_choice_content), Left(driver_options_content))
        )
      end
      next
    end
    if :driver_selection == user_input
      selected_ppd_index = Convert.to_integer(
        UI.QueryWidget(Id(:driver_selection), :CurrentItem)
      )
      if nil == selected_ppd_index
        Popup.AnyMessage(
          _("No Driver Selected"),
          # Body of a Popup::AnyMessage when no driver was selected:
          _("Select a driver.")
        )
        next
      end
      # selected_ppd_index is -1 for the currently used driver
      # and also for a possible dummy entry "Select a driver" which is inserted
      # by the DriverItems function when no driver was preselected.
      # -1 is an invalid index in the ppds list and
      # it means that the driver is not to be exchanged.
      # To be safe that the currently used driver cannot be exchanged
      # Printer::selected_ppds_index is set to -1 in this case.
      if selected_ppd_index != Printer.selected_ppds_index
        Printer.selected_ppds_index = selected_ppd_index
        if Ops.greater_or_equal(selected_ppd_index, 0)
          Builtins.y2milestone(
            "Selected driver is: %1",
            Ops.get(Printer.ppds, selected_ppd_index, {})
          )
        else
          if "" != nick_name
            Builtins.y2milestone(
              "Selected currently used driver: '%1'",
              nick_name
            )
          else
            Builtins.y2milestone(
              "Selected currently used driver: No driver is used (it is a 'raw' queue or a 'System V style interface script' is used)"
            )
          end
        end
      end
      if Ops.greater_or_equal(selected_ppd_index, 0)
        # the widgets to change options for the currently used driver are removed and
        # the description_input field is overwritten with the NickName of the new selected driver:
        #UI::ReplaceWidget( `id(`paper_choice_and_driver_options_replace_point), `Empty() );
        UI.ReplaceWidget(
          Id(:paper_choice_and_driver_options_replace_point),
          Left(new_driver_paper_choice_content)
        )
        new_description = Ops.get(
          Printer.ppds,
          [selected_ppd_index, "nickname"],
          ""
        )
        if "" != model && "unknown" != Builtins.tolower(model)
          new_description = Ops.add(
            Ops.add(model, " with driver "),
            new_description
          )
        end
        # Delete ' characters because they are used for quoting in the bash commandline:
        new_description = Builtins.deletechars(new_description, "'")
        UI.ChangeWidget(Id(:description_input), :Value, new_description)
      else
        # the widgets to change options for the currently used driver are recreated and
        # the description_input field is restored with the current description of the queue:
        UI.ReplaceWidget(
          Id(:paper_choice_and_driver_options_replace_point),
          VBox(Left(paper_choice_content), Left(driver_options_content))
        )
        UI.ChangeWidget(Id(:description_input), :Value, description)
      end
      next
    end
    if :apply_driver_filter == user_input
      driver_filter_input_text = Convert.to_string(
        UI.QueryWidget(Id(:driver_filter_input), :Value)
      )
      Builtins.y2milestone("Drivers for '%1'", driver_filter_input_text)
      if any_model_driver_filter_input_text == driver_filter_input_text
        driver_filter_input_text = ""
      end
      driver_filter_string = Printer.DeriveDriverFilterString(
        driver_filter_input_text
      )
      if "" == driver_filter_string
        driver_filter_input_text = any_model_driver_filter_input_text
      end
      UI.ReplaceWidget(
        Id(:driver_filter_input_replace_point),
        InputField(
          Id(:driver_filter_input),
          Opt(:hstretch),
          # No InputField header because there is the "Caption for a printer driver selection":
          "",
          driver_filter_input_text
        )
      )
      UI.ReplaceWidget(
        Id(:driver_selection_replace_point),
        SelectionBox(
          Id(:driver_selection),
          # By default there is no UserInput()
          # if only something was selected in the SelectionBox
          # (without clicking additionally a button)
          # but the notify option forces UserInput() in this case:
          Opt(:notify),
          "",
          Builtins.prepend(
            Printer.DriverItems(driver_filter_string, false),
            current_driver
          )
        )
      )
      next
    end
    if :more_drivers == user_input
      if non_matching_fallback_driver_filter_string != driver_filter_string
        driver_filter_string = ""
      end
      valid_driver_found = false
      driver_items = []
      # Use the existing value of driver_filter_input_text
      # which is usually set to nick_name and to model as fallback
      # but it could be any string which was entered before by the user.
      # The "more drivers" functionality must work based on the current search string
      # and when nothing is found based on the current search string
      # it falls back to show all drivers so that there is a valid result in any case.
      driver_filter_input_text = Convert.to_string(
        UI.QueryWidget(Id(:driver_filter_input), :Value)
      )
      Builtins.y2milestone(
        "More drivers for '%1'",
        driver_filter_input_text
      )
      if "" != driver_filter_input_text &&
          "unknown" != Builtins.tolower(driver_filter_input_text) &&
          any_model_driver_filter_input_text != driver_filter_input_text &&
          non_matching_fallback_driver_filter_string != driver_filter_string
        manufacturer_and_model_number = Printer.DeriveModelName(
          driver_filter_input_text,
          2
        )
        # Note that manufacturer_and_model_number may be the empty string
        # (when driver_filter_input_text does not contain word which contains a number)
        # or manufacturer_and_model_number may be only one word
        # (when driver_filter_input_text starts with a known manufacturer
        #  but does not contain a word which contains a number
        #  or when driver_filter_input_text does not start with a known manufacturer
        #  but contains a word which contains a number).
        if "" != manufacturer_and_model_number &&
            Builtins.issubstring(manufacturer_and_model_number, " ")
          UI.ReplaceWidget(
            Id(:driver_filter_input_replace_point),
            InputField(
              Id(:driver_filter_input),
              Opt(:hstretch),
              # No InputField header because there is the "Caption for a printer driver selection":
              "",
              manufacturer_and_model_number
            )
          )
          driver_filter_string = Printer.DeriveDriverFilterString(
            manufacturer_and_model_number
          )
          if "" != driver_filter_string
            driver_items = Printer.DriverItems(driver_filter_string, true)
            # Printer::DriverItems may result a driver_items list with one single element
            #   [ `item( `id( -1 ), _("No matching driver found.") ) ]
            # to show at least a meaningful text as fallback entry to the user
            # or Printer::DriverItems may result a driver_items list with the first item
            #   [ `item( `id( -1 ), _("Select a driver.") ), ... ]
            # when Printer::DriverItems could not preselect a driver item.
            # If a valid driver was found (but perhaps none was preselected),
            # there would be a non-negative id value of the first or second element
            # which is driver_items[0,0,0] or driver_items[1,0,0]
            # (id[0] is the value of the id, see the comment in Printer::DriverItems).
            if Ops.greater_or_equal(
                Ops.get_integer(driver_items, [0, 0, 0], -1),
                0
              ) ||
                Ops.greater_or_equal(
                  Ops.get_integer(driver_items, [1, 0, 0], -1),
                  0
                )
              valid_driver_found = true
            end
          end
        end
        # Try to use only the manufacturer or only the model number when nothing was found above:
        if !valid_driver_found
          manufacturer_or_model_number = Printer.DeriveModelName(
            driver_filter_input_text,
            1
          )
          if "" != manufacturer_or_model_number
            UI.ReplaceWidget(
              Id(:driver_filter_input_replace_point),
              InputField(
                Id(:driver_filter_input),
                Opt(:hstretch),
                # No InputField header because there is the "Caption for a printer driver selection":
                "",
                manufacturer_or_model_number
              )
            )
            driver_filter_string = Printer.DeriveDriverFilterString(
              manufacturer_or_model_number
            )
            if "" != driver_filter_string
              driver_items = Printer.DriverItems(driver_filter_string, true)
              # Printer::DriverItems may result a driver_items list with one single element
              #   [ `item( `id( -1 ), _("No matching driver found.") ) ]
              # to show at least a meaningful text as fallback entry to the user
              # or Printer::DriverItems may result a driver_items list with the first item
              #   [ `item( `id( -1 ), _("Select a driver.") ), ... ]
              # when Printer::DriverItems could not preselect a driver item.
              # If a valid driver was found (but perhaps none was preselected),
              # there would be a non-negative id value of the first or second element
              # which is driver_items[0,0,0] or driver_items[1,0,0]
              # (id[0] is the value of the id, see the comment in Printer::DriverItems).
              if Ops.greater_or_equal(
                  Ops.get_integer(driver_items, [0, 0, 0], -1),
                  0
                ) ||
                  Ops.greater_or_equal(
                    Ops.get_integer(driver_items, [1, 0, 0], -1),
                    0
                  )
                valid_driver_found = true
              end
            end
          end
        end
      end
      # Nothing was found above.
      # Fall back to show all drivers:
      if !valid_driver_found
        UI.ReplaceWidget(
          Id(:driver_filter_input_replace_point),
          InputField(
            Id(:driver_filter_input),
            Opt(:hstretch),
            # No InputField header because there is the "Caption for a printer driver selection":
            "",
            any_model_driver_filter_input_text
          )
        )
        driver_items = Printer.DriverItems("", true)
      end
      UI.ReplaceWidget(
        Id(:driver_selection_replace_point),
        SelectionBox(
          Id(:driver_selection),
          # By default there is no UserInput()
          # if only something was selected in the SelectionBox
          # (without clicking additionally a button)
          # but the notify option forces UserInput() in this case:
          Opt(:notify),
          "",
          Builtins.prepend(driver_items, current_driver)
        )
      )
      next
    end
    Builtins.y2milestone(
      "Ignoring unexpected returncode in BasicModifyDialog: %1",
      user_input
    )
    next
  end
  Builtins.y2milestone("leaving BasicModifyDialog")
  deep_copy(user_input)
end

- (Object) initialize_printer_basicmodify(include_target)



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# File '../../src/include/printer/basicmodify.rb', line 30

def initialize_printer_basicmodify(include_target)
  Yast.import "UI"

  textdomain "printer"

  Yast.import "Label"
  Yast.import "Wizard"
  Yast.import "Printer"
  Yast.import "Printerlib"
  Yast.import "Popup"

  Yast.include include_target, "printer/helps.rb"
end