14854565708

Committed 06 May 2025 07:59AM UTC coverage: 87.379% (-0.04%) from 87.417%

Build # 14854565708

Build Type

Pull #716

github

Committed by

web-flow

Commit Message

Merge f1f4ee92d into d2595d11d

Pull Request Pull Request #716: Unifying Bootloader Options for systemd-boot and grub2-bls

Run Details

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/src/lib/bootloader/grub2_widgets.rb

# frozen_string_literal: true

require "yast"

require "bootloader/generic_widgets"
require "bootloader/device_map_dialog"
require "bootloader/serial_console"
require "bootloader/cpu_mitigations"
require "bootloader/systeminfo"
require "bootloader/os_prober"
require "bootloader/device_path"
require "bootloader/pmbr"
require "cfa/matcher"

Yast.import "Initrd"
Yast.import "Label"
Yast.import "Report"
Yast.import "UI"
Yast.import "Mode"
Yast.import "Arch"

module Bootloader
  module Grub2Widget
    # Adds to generic widget grub2 specific helpers
    module Grub2Helper
      def grub_default
        BootloaderFactory.current.grub_default
      end

      def stage1
        BootloaderFactory.current.stage1
      end

      def password
        BootloaderFactory.current.password
      end

      def grub2
        BootloaderFactory.current
      end
    end

    # Represents bootloader timeout value
    class TimeoutWidget < CWM::IntField
      include Grub2Helper

      def initialize(hidden_menu_widget)
        textdomain "bootloader"

        super()

        @minimum = -1
        @maximum = 600
        @hidden_menu_widget = hidden_menu_widget
      end

      attr_reader :minimum, :maximum

      def label
        _("&Timeout in Seconds")
      end

      def help
        _("<p><b>Timeout in Seconds</b>\n" \
          "specifies the time the boot loader will wait until the default kernel is loaded.</p>\n")
      end

      def init
        self.value = if grub_default.hidden_timeout && grub_default.hidden_timeout.to_i > 0
          grub_default.hidden_timeout.to_i
        else
          grub_default.timeout.to_i
        end
      end

      def store
        if @hidden_menu_widget.is_a?(CWM::Empty)
          grub_default.timeout = value.to_s
        elsif @hidden_menu_widget.checked?
          grub_default.hidden_timeout = value.to_s
          grub_default.timeout = "0"
        else
          grub_default.hidden_timeout = "0"
          grub_default.timeout = value.to_s
        end
      end
    end

    # Represents decision if bootloader need activated partition
    class ActivateWidget < CWM::CheckBox
      include Grub2Helper

      def initialize
        textdomain "bootloader"

        super
      end

      def label
        _("Set &active Flag in Partition Table for Boot Partition")
      end

      def help
        _(
          "<p><b>Set Active Flag in Partition Table for Boot Partition</b>\n" \
          "specifies whether the partition containing " \
          "the boot loader will have the \"active\" flag." \
          " The generic MBR code will then\n" \
          "boot the active partition. Older BIOSes require one partition to be active even\n" \
          "if the boot loader is installed in the MBR.</p>"
        )
      end

      def init
        self.value = stage1.activate?
      end

      def store
        stage1.activate = checked?
      end
    end

    # Represents decision if generic MBR have to be installed on disk
    class GenericMBRWidget < CWM::CheckBox
      include Grub2Helper

      def initialize
        textdomain "bootloader"

        super
      end

      def label
        _("Write &generic Boot Code to MBR")
      end

      def help
        _(
          "<p><b>Write generic Boot Code to MBR</b> replace the master boot" \
          " record of your disk with generic code (OS independent code which\n" \
          "boots the active partition).</p>"
        )
      end

      def init
        self.value = stage1.generic_mbr?
      end

      def store
        stage1.generic_mbr = checked?
      end
    end

    # Represents decision if menu should be hidden or visible
    class HiddenMenuWidget < CWM::CheckBox
      include Grub2Helper

      def initialize
        textdomain "bootloader"

        super
      end

      def label
        _("&Hide Menu on Boot")
      end

      def help
        _(
          "<p>Selecting <b>Hide Menu on Boot</b> will hide the boot menu.</p>"
        )
      end

      def init
        self.value = grub_default.hidden_timeout && grub_default.hidden_timeout.to_i > 0
      end
    end

    # Represents if os prober should be run
    class OSProberWidget < CWM::CheckBox
      include Grub2Helper

      def initialize
        textdomain "bootloader"

        super
      end

      def label
        _("Pro&be Foreign OS")
      end

      def help
        _(
          "<p><b>Probe Foreign OS</b> by means of os-prober for multiboot with " \
          "other foreign distribution </p>"
        )
      end

      def init
        self.value = grub_default.os_prober.enabled?
      end

      def store
        grub_default.os_prober.value = checked?
      end
    end

    # Represents switcher for Trusted Boot
    class TrustedBootWidget < CWM::CheckBox
      include Grub2Helper

      def initialize
        textdomain "bootloader"

        super
      end

      def label
        _("&Trusted Boot Support")
      end

      def help
        res = _("<p><b>Trusted Boot</b> " \
                "means measuring the integrity of the boot process,\n" \
                "with the help from the hardware (a TPM, Trusted Platform Module,\n" \
                "chip).\n")
        if grub2.name == "grub2"
          res += _("First you need to make sure Trusted Boot is enabled in the BIOS\n" \
                   "setup (the setting may be named \"Security Chip\", for example).\n")
        end

        res += "</p>"

        res
      end

      def init
        self.value = grub2.trusted_boot
      end

      def store
        grub2.trusted_boot = value
      end

      def validate
        return true if Yast::Mode.config || !value || ["grub2-efi",
                                                       "grub2-bls"].include?(grub2.name)

        tpm_files = Dir.glob("/sys/**/pcrs")
        if !tpm_files.empty? && !File.read(tpm_files[0], 1).nil?
          # check for file size does not work, since FS reports it 4096
          # even if the file is in fact empty and a single byte cannot
          # be read, therefore testing real reading (details: bsc#994556)
          return true
        end

        Yast::Popup.ContinueCancel(_("Trusted Platform Module not found.\n" \
                                     "Make sure it is enabled in BIOS.\n" \
                                     "The system will not boot otherwise."))
      end
    end

    # Represents switcher for NVRAM update
    class UpdateNvramWidget < CWM::CheckBox
      include Grub2Helper

      def initialize
        textdomain "bootloader"

        super
      end

      def label
        _("Update &NVRAM Entry")
      end

      def help
        _("<p><b>Update NVRAM Entry</b> will add nvram entry for the bootloader\n" \
          "in the firmware.\n" \
          "This is usually desirable unless you want to preserve specific settings\n" \
          "or need to work around firmware issues.</p>\n")
      end

      def init
        self.value = grub2.update_nvram
      end

      def store
        grub2.update_nvram = value
      end
    end

    # Represents grub password protection widget
    class GrubPasswordWidget < CWM::CustomWidget
      include Grub2Helper

      def initialize
        textdomain "bootloader"

        super
      end

      MASKED_PASSWORD = "**********"

      def contents
        HBox(
          CheckBoxFrame(
            Id(:use_pas),
            _("Prot&ect Boot Loader with Password"),
            true,
            VBox(
              HBox(
                HSpacing(2),
                # TRANSLATORS: checkbox entry
                CheckBox(Id(:unrestricted_pw), _("P&rotect Entry Modification Only")),
                HStretch()
              ),
              HBox(
                HSpacing(2),
                # TRANSLATORS: text entry, please keep it short
                Password(Id(:pw1), Opt(:hstretch), _("&Password for GRUB2 User 'root'")),
                # text entry
                HSpacing(2),
                Password(Id(:pw2), Opt(:hstretch), _("Re&type Password")),
                HStretch()
              )
            )
          )
        )
      end

      def validate
        return true unless Yast::UI.QueryWidget(Id(:use_pas), :Value)

        if Yast::UI.QueryWidget(Id(:pw1), :Value) == ""
          Yast::Report.Error(_("The password must not be empty."))
          Yast::UI.SetFocus(Id(:pw1))
          return false
        end
        if Yast::UI.QueryWidget(Id(:pw1), :Value) == Yast::UI.QueryWidget(Id(:pw2), :Value)
          return true
        end

        Yast::Report.Error(_(
                             "'Password' and 'Retype password'\ndo not match. Retype the password."
                           ))
        Yast::UI.SetFocus(Id(:pw1))
        false
      end

      def init
        enabled = password.used?
        # read state on disk only if not already set by user (bnc#900026)
        value = (enabled && password.password?) ? MASKED_PASSWORD : ""

        Yast::UI.ChangeWidget(Id(:use_pas), :Value, enabled)
        Yast::UI.ChangeWidget(Id(:pw1), :Enabled, enabled)
        Yast::UI.ChangeWidget(Id(:pw1), :Value, value)
        Yast::UI.ChangeWidget(Id(:pw2), :Enabled, enabled)
        Yast::UI.ChangeWidget(Id(:pw2), :Value, value)
        Yast::UI.ChangeWidget(Id(:unrestricted_pw), :Enabled, enabled)
        Yast::UI.ChangeWidget(Id(:unrestricted_pw), :Value, password.unrestricted?)
      end

      def handle(event)
        return unless event["ID"] == :use_pas

        enabled = Yast::UI.QueryWidget(Id(:use_pas), :Value)
        Yast::UI.ChangeWidget(Id(:unrestricted_pw), :Enabled, enabled)
        Yast::UI.ChangeWidget(Id(:pw1), :Enabled, enabled)
        Yast::UI.ChangeWidget(Id(:pw2), :Enabled, enabled)

        nil
      end

      def store
        usepass = Yast::UI.QueryWidget(Id(:use_pas), :Value)
        matcher = CFA::Matcher.new(key: "rd.shell")
        grub_default.kernel_params.remove_parameter(matcher)
        if !usepass
          password.used = false
          return
        end

        password.used = true

        value = Yast::UI.QueryWidget(Id(:pw1), :Value)
        # special value as we do not know password, so it mean user do not change it
        password.password = value if value != MASKED_PASSWORD

        value = Yast::UI.QueryWidget(Id(:unrestricted_pw), :Value)
        grub_default.kernel_params.add_parameter("rd.shell", "0") if value
        password.unrestricted = value
      end

      def help
        _(
          "<p><b>Protect Boot Loader with Password</b>\n" \
          "at boot time, modifying or even booting any entry will require the" \
          " password. If <b>Protect Entry Modification Only</b> is checked then " \
          "booting any entry is not restricted but modifying entries requires " \
          "the password (which is the way GRUB 1 behaved). As side-effect of " \
          "this option, rd.shell=0 is added to kernel parameters, to prevent " \
          "an unauthorized access to the initrd shell. " \
          "YaST will only accept the password if you repeat it in " \
          "<b>Retype Password</b>. The password applies to the GRUB2 user 'root' " \
          "which is distinct from the Linux 'root'. YaST currently does not support " \
          "other GRUB2 users. If you need them, use a separate GRUB2 script.</p>"
        )
      end
    end

    # Represents graphical and serial console setup for bootloader
    #
    # Allows to configure terminal for grub. It can configure grub
    # to use either graphical terminal, console or console over serial line.
    #
    # Graphical or serial terminal has to be selected explicitly. Either
    # one of them or both at once.
    # Native console is configured as a fallback when nothing else is selected.
    class ConsoleWidget < CWM::CustomWidget
      include Grub2Helper

      def initialize
        textdomain "bootloader"

        super
      end

      def contents
        VBox(
          graphical_console_frame,
          serial_console_frame
        )
      end

      def help
        # Translators: do not translate the quoted parts like "unit"
        _(
          "<p><b>Graphical console</b> when checked it allows to use various " \
          "display resolutions. The <tt>auto</tt> option tries to find " \
          "the best one when booting starts.</p>\n" \
          "<p><b>Serial console</b> when checked it redirects the boot output " \
          "to a serial device like <tt>ttyS0</tt>. " \
          "At least the <tt>--unit</tt> option has to be specified, " \
          "and the complete syntax is <tt>%s</tt>. " \
          "Other parts are optional and if not set, a default is used. " \
          "<tt>NUM</tt> in commands stands for a positive number like 8. " \
          "Example parameters are <tt>serial --speed=38400 --unit=0</tt>.</p>"
        ) % syntax
      end

      def init
        init_console
        init_gfxterm

        Yast::UI.ChangeWidget(Id(:theme), :Value, grub_default.theme || "")
      rescue RuntimeError
        raise ::Bootloader::UnsupportedOption, "GRUB_TERMINAL"
      end

      def validate
        if Yast::UI.QueryWidget(Id(:console_frame), :Value)
          console_value = Yast::UI.QueryWidget(Id(:console_args), :Value)
          if console_value.strip.empty?
            Yast::Report.Error(
              _("To enable serial console you must provide the corresponding arguments.")
            )
            Yast::UI.SetFocus(Id(:console_args))
            return false
          end
          if ::Bootloader::SerialConsole.load_from_console_args(console_value).nil?
            # Translators: do not translate "unit"
            msg = _("To enable the serial console you must provide the corresponding arguments.\n" \
                    "The \"unit\" argument is required, the complete syntax is:\n%s") % syntax
            Yast::Report.Error(msg)
            Yast::UI.SetFocus(Id(:console_args))
            return false
          end
        end
        true
      end

      def store
        use_serial = Yast::UI.QueryWidget(Id(:console_frame), :Value)
        use_gfxterm = Yast::UI.QueryWidget(Id(:gfxterm_frame), :Value)
        use_console = !use_serial && !use_gfxterm

        grub_default.terminal = []
        grub_default.terminal = [:gfxterm] if use_gfxterm

        if use_serial
          console_value = Yast::UI.QueryWidget(Id(:console_args), :Value)
          BootloaderFactory.current.enable_serial_console(console_value)
        elsif use_console
          grub_default.terminal = [:console]
        end

        mode = Yast::UI.QueryWidget(Id(:gfxmode), :Value)
        grub_default.gfxmode = mode if mode != ""

        theme = Yast::UI.QueryWidget(Id(:theme), :Value)
        grub_default.theme = theme if theme != ""
      end

      def handle(event)
        return if event["ID"] != :browsegfx

        theme_dir = "/boot/grub2/themes/openSUSE"
        theme_dir = "/boot/grub2" unless ::Dir.exist?(theme_dir)

        file = Yast::UI.AskForExistingFile(
          theme_dir,
          "*.txt",
          _("Choose new graphical theme file")
        )

        Yast::UI.ChangeWidget(Id(:theme), :Value, file) if file

        nil
      end

    private

      # Initializates serial console specific widgets
      def init_console
        enable = grub_default.terminal.include?(:serial) if grub_default.terminal
        Yast::UI.ChangeWidget(Id(:console_frame), :Value, enable)
        args = grub_default.serial_console || ""
        Yast::UI.ChangeWidget(Id(:console_args), :Value, args)
      end

      # Initializates gfxterm specific widgets
      def init_gfxterm
        enable = grub_default.terminal.include?(:gfxterm) if grub_default.terminal
        Yast::UI.ChangeWidget(Id(:gfxterm_frame), :Value, enable)

        Yast::UI.ChangeWidget(Id(:gfxmode), :Items, vga_modes_items)
        mode = grub_default.gfxmode

        # there's mode specified, use it
        Yast::UI.ChangeWidget(Id(:gfxmode), :Value, mode) if mode && mode != ""
      end

      # Explanation for help and error messages
      def syntax
        # Translators: NUM is an abbreviation for "number",
        # to be substituted in a command like
        # "serial --unit=NUM --speed=NUM --parity={odd|even|no} --word=NUM --stop=NUM"
        # so do not use punctuation
        n = _("NUM")
        "serial --unit=#{n} --speed=#{n} --parity={odd|even|no} --word=#{n} --stop=#{n}"
      end

      def graphical_console_frame
        CheckBoxFrame(
          Id(:gfxterm_frame),
          _("&Graphical console"),
          true,
          HBox(
            HSpacing(2),
            ComboBox(
              Id(:gfxmode), Opt(:editable, :hstretch), _("&Console resolution")
            ),
            HBox(
              Left(
                InputField(
                  Id(:theme), Opt(:hstretch), _("&Console theme")
                )
              ),
              VBox(
                Left(Label("")),
                Left(
                  PushButton(Id(:browsegfx), Opt(:notify), Yast::Label.BrowseButton)
                )
              )
            ),
            HStretch()
          )
        )
      end

      def vga_modes_items
        return @vga_modes if @vga_modes

        @vga_modes = Yast::Initrd.VgaModes

        @vga_modes.sort! do |a, b|
          res = a["width"] <=> b["width"]
          res = a["height"] <=> b["height"] if res.zero?

          res
        end

        @vga_modes.map! { |a| "#{a["width"]}x#{a["height"]}" }
        @vga_modes.uniq!

        @vga_modes.map! { |m| Item(Id(m), m) }
        @vga_modes.unshift(Item(Id("auto"), _("Autodetect by grub2")))

        @vga_modes
      end

      def serial_console_frame
        CheckBoxFrame(
          Id(:console_frame),
          _("&Serial console"),
          true,
          HBox(
            HSpacing(2),
            InputField(
              Id(:console_args),
              Opt(:hstretch),
              _("&Console arguments")
            ),
            HStretch()
          )
        )
      end
    end

    # Represents stage1 location for bootloader
    class LoaderLocationWidget < CWM::CustomWidget
      include Grub2Helper

      def contents
        textdomain "bootloader"

        VBox(
          Frame(
            _("Boot Code Location"),
            HBox(
              HSpacing(1),
              VBox(*location_checkboxes),
              HSpacing(1)
            )
          ),
          VSpacing(1)
        )
      end

      def handle(event)
        return unless event["ID"] == :custom

        checked = Yast::UI.QueryWidget(Id(:custom), :Value)
        Yast::UI.ChangeWidget(Id(:custom_list), :Enabled, checked)

        nil
      end

      def init
        if locations.include?(:boot)
          Yast::UI.ChangeWidget(Id(:boot), :Value,
            stage1.boot_partition?)
        end
        if locations.include?(:logical)
          Yast::UI.ChangeWidget(Id(:logical), :Value, stage1.boot_partition?)
        end
        if locations.include?(:extended)
          Yast::UI.ChangeWidget(Id(:extended), :Value, stage1.extended_boot_partition?)
        end
        Yast::UI.ChangeWidget(Id(:mbr), :Value, stage1.mbr?) if locations.include?(:mbr)

        init_custom_devices(stage1.custom_devices)
      end

      def store
        stage1.clear_devices
        locations.each { |l| add_location(l) }

        return unless Yast::UI.QueryWidget(:custom, :Value)

        devs = Yast::UI.QueryWidget(:custom_list, :Value)
        devs.split(",").each do |dev|
          stage1.add_device(DevicePath.new(dev).path)
        end
      end

      def validate
        return true if !Yast::UI.QueryWidget(:custom, :Value)

        devs = Yast::UI.QueryWidget(:custom_list, :Value)

        if devs.strip.empty?
          Yast::Report.Error(_("Custom boot device has to be specified if checked"))
          Yast::UI.SetFocus(Id(:custom_list))
          return false
        end

        invalid_devs = invalid_custom_devices(devs)
        if !invalid_devs.empty?
          ret = Yast::Popup.ContinueCancel(
            format(
              _(
                "These custom devices can be invalid: %s." \
                "Please check if exist and spelled correctly." \
                "Do you want to continue?"
              ),
              invalid_devs.join(", ")
            )
          )

          if !ret
            Yast::UI.SetFocus(Id(:custom_list))
            return false
          end
        end

        true
      end

    private

      def add_location(id)
        return unless Yast::UI.QueryWidget(Id(id), :Value)

        case id
        when :boot, :logical
          stage1.boot_partition_names.each { |d| stage1.add_udev_device(d) }
        when :extended
          stage1.extended_boot_partitions_names.each { |d| stage1.add_udev_device(d) }
        when :mbr
          stage1.boot_disk_names.each { |d| stage1.add_udev_device(d) }
        end
      end

      def init_custom_devices(custom_devices)
        if custom_devices.empty?
          Yast::UI.ChangeWidget(:custom, :Value, false)
          Yast::UI.ChangeWidget(:custom_list, :Enabled, false)
        else
          Yast::UI.ChangeWidget(:custom, :Value, true)
          Yast::UI.ChangeWidget(:custom_list, :Enabled, true)
          Yast::UI.ChangeWidget(:custom_list, :Value, custom_devices.join(","))
        end
      end

      # Checks list of custom devices
      #
      # @param devs_list[String] comma separated list of device definitions
      #
      # @return [Array<String>] devices which didn't pass validation
      def invalid_custom_devices(devs_list)
        # almost any byte sequence is potentially valid path in unix like systems
        # AY profile can be generated for whatever system so we cannot decite if
        # particular byte sequence is valid or not
        return [] if Yast::Mode.config

        devs_list.split(",").reject do |d|
          dev_path = DevicePath.new(d)

          if Yast::Mode.installation
            # uuids are generated later by mkfs, so not known in time of installation
            # so whatever can be true
            dev_path.uuid? || dev_path.valid?
          else
            dev_path.valid?
          end
        end
      end

      def locations
        @locations ||= stage1.available_locations
      end

      def location_checkboxes
        checkboxes = []
        # TRANSLATORS: %s is used to specify exact devices
        add_checkbox(checkboxes, :boot,
          format(_("Wri&te to Partition (%s)"), stage1.boot_partition_names.join(", ")))
        # TRANSLATORS: %s is used to specify exact devices
        add_checkbox(checkboxes, :logical,
          format(_("Wri&te to Logical Partition (%s)"), stage1.boot_partition_names.join(", ")))
        # TRANSLATORS: %s is used to specify exact devices
        add_checkbox(checkboxes, :extended,
          format(_("Write to &Extended Partition (%s)"),
            stage1.extended_boot_partitions_names.join(", ")))
        # TRANSLATORS: %s is used to specify exact devices
        add_checkbox(checkboxes, :mbr,
          format(_("Write to &Master Boot Record (%s)"), stage1.boot_disk_names.join(", ")))

        checkboxes.concat(custom_partition_content)
      end

      def add_checkbox(checkboxes, id, title)
        checkboxes << Left(CheckBox(Id(id), title)) if locations.include?(id)
      end

      def custom_partition_content
        [
          Left(CheckBox(Id(:custom), Opt(:notify), _("C&ustom Boot Partition"))),
          Left(InputField(Id(:custom_list), Opt(:hstretch), ""))
        ]
      end
    end

    # Represents button that open Device Map edit dialog
    class DeviceMapWidget < ::CWM::PushButton
      include Grub2Helper

      def label
        textdomain "bootloader"

        _("&Edit Disk Boot Order")
      end

      def help
        textdomain "bootloader"

        _(
          "<p><b>Edit Disk Boot Order</b>\n" \
          "allows to specify the order of the disks according to the order in BIOS. Use\n" \
          "the <b>Up</b> and <b>Down</b> buttons to reorder the disks.\n" \
          "To add a disk, push <b>Add</b>.\n" \
          "To remove a disk, push <b>Remove</b>.</p>"
        )
      end

      def handle
        DeviceMapDialog.run(grub2.device_map)

        nil
      end
    end

    # represents Tab with kernel related configuration
    class KernelTab < CWM::Tab
      include Grub2Helper

      def label
        textdomain "bootloader"

        _("&Kernel Parameters")
      end

      def contents
        VBox(
          VSpacing(1),
          MarginBox(1, 0.5, KernelAppendWidget.new),
          MarginBox(1, 0.5, Left(CpuMitigationsWidget.new)),
          MarginBox(1, 0.5, console_widget),
          VStretch()
        )
      end

    private

      def console_widget
        if Systeminfo.console_supported?(grub2.name)
          ConsoleWidget.new
        else
          CWM::Empty.new("console")
        end
      end
    end

    # Represent tab with options related to stage1 location and bootloader type
    class BootCodeTab < CWM::Tab
      include Grub2Helper

      def label
        textdomain "bootloader"

        _("Boot Co&de Options")
      end

      def contents
        VBox(
          VSpacing(1),
          HBox(
            HSpacing(1),
            Left(LoaderTypeWidget.new)
          ),
          VSpacing(1),
          *widgets,
          VSpacing(1),
          pmbr_widget,
          device_map_button,
          VStretch()
        )
      end

    private

      def widgets
        w = []
        w << LoaderLocationWidget.new if loader_location_widget?

        if generic_mbr_widget?
          w << ActivateWidget.new
          w << GenericMBRWidget.new
        end

        w << SecureBootWidget.new if secure_boot_widget?
        w << TrustedBootWidget.new if trusted_boot_widget?
        w << UpdateNvramWidget.new if update_nvram_widget?

        w.map do |widget|
          MarginBox(horizontal_margin, 0, Left(widget))
        end
      end

      def pmbr_widget
        return Empty() unless pmbr_widget?

        MarginBox(1, 0, Left(PMBRWidget.new))
      end

      def device_map_button
        return Empty() unless device_map_button?

        MarginBox(1, 0, Left(DeviceMapWidget.new))
      end

      def horizontal_margin
        @horizontal_margin ||= Yast::UI.TextMode ? 1 : 1.5
      end

      def loader_location_widget?
        Systeminfo.loader_location_available?(grub2.name)
      end

      def generic_mbr_widget?
        Systeminfo.generic_mbr_available?(grub2.name)
      end

      def secure_boot_widget?
        Systeminfo.secure_boot_available?(grub2.name)
      end

      def trusted_boot_widget?
        Systeminfo.trusted_boot_available?(grub2.name)
      end

      def update_nvram_widget?
        Systeminfo.nvram_available?(grub2.name)
      end

      def pmbr_widget?
        Pmbr.available?
      end

      def device_map_button?
        Systeminfo.device_map?(grub2.name)
      end
    end

    # Represents bootloader specific options like its timeout,
    # default section or password protection
    class BootloaderTab < CWM::Tab
      include Grub2Helper

      def label
        textdomain "bootloader"

        _("Boot&loader Options")
      end

      def contents
        timeout_widget = if Systeminfo.bls_timeout_supported?(grub2.name)
          ::Bootloader::BlsWidget::TimeoutWidget.new
        else
          TimeoutWidget.new(hidden_menu_widget)
        end
        VBox(
          VSpacing(2),
          HBox(
            HSpacing(1),
            timeout_widget,
            HSpacing(1),
            VBox(
              os_prober_widget,
              VSpacing(1),
              Left(hidden_menu_widget)
            ),
            HSpacing(1)
          ),
          VSpacing(1),
          MarginBox(1, 1, MinWidth(1, DefaultSectionWidget.new)),
          MarginBox(1, 1, grub_password_widget),
          VStretch()
        )
      end

    private

      def grub_password_widget
        if Systeminfo.password_supported?(grub2.name)
          GrubPasswordWidget.new
        else
          CWM::Empty.new("password_widget")
        end
      end

      def hidden_menu_widget
        if Systeminfo.hiding_menu_supported?(grub2.name)
          HiddenMenuWidget.new
        else
          CWM::Empty.new("hidden_menu")
        end
      end

      def os_prober_widget
        # Checks !Arch.s390, not grub2-bls  and if package is available
        if OsProber.available?(grub2.name)
          Left(OSProberWidget.new)
        else
          CWM::Empty.new("os_prober")
        end
      end
    end
  end
end

yast / yast-bootloader / 14854565708

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