Class: Yast::MenuClient

Inherits:
Client
  • Object
show all
Defined in:
library/desktop/src/clients/menu.rb

Instance Method Summary collapse

Instance Method Details

#DisplaySplash ⇒ Object 



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# File 'library/desktop/src/clients/menu.rb', line 198

def DisplaySplash
  UI.OpenDialog(
    Opt(:defaultsize),
    VBox(
      VStretch(),
      # Message shown while loading modules information
      Label(_("Loading modules, please wait ...")),
      VStretch()
    )
  )

  nil
end

#Launch(modul) ⇒ Boolean

Returns true if control center is to be resatrted.

Returns:

  • (Boolean) —

    true if control center is to be resatrted



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# File 'library/desktop/src/clients/menu.rb', line 290

def Launch(modul)
  function = Ops.get_string(@Modules, [modul, "X-SuSE-YaST-Call"], "")
  argument = Ops.get_string(@Modules, [modul, "X-SuSE-YaST-Argument"], "")
  Builtins.y2debug("Calling: %1 (%2)", function, argument)

  display_info = UI.GetDisplayInfo
  textmode = Ops.get_boolean(display_info, "TextMode", false)

  if function != ""
    cmd = ""
    ret = nil

    # prevent shell injection when passing argument. But on other hand do
    # not pass empty argument which makes module think it is CLI (bsc#1121425)
    argument = argument.empty? ? "" : argument.shellescape

    # Use UI::RunInTerminal in text-mode only (#237332)
    if textmode
      cmd = Builtins.sformat("/sbin/yast %1 %2 >&2", function.shellescape, argument)
      ret = UI.RunInTerminal(cmd)
    else
      cmd = Builtins.sformat("/sbin/yast2 %1 %2 >&2", function.shellescape, argument)
      ret = SCR.Execute(path(".target.bash"), cmd)
    end
    Builtins.y2milestone("Got %1 from %2", ret, cmd)

    if function == "online_update" && ret != :cancel && ret != :abort &&
        FileUtils.Exists(@restart_you)
      Builtins.y2milestone("yast needs to be restarted - exiting...")
      SCR.Execute(
        path(".target.bash"),
        Builtins.sformat("/usr/bin/touch %1", @restart_file.shellescape)
      )
      return true
    end
  end
  false
end

#main ⇒ Object 



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# File 'library/desktop/src/clients/menu.rb', line 36

def main
  Yast.import "UI"

  textdomain "base"

  Yast.import "Desktop"
  Yast.import "Directory"
  Yast.import "FileUtils"
  Yast.import "Label"
  Yast.import "Popup"

  @Groups = {}
  @Modules = {}
  @root = false

  @restart_file = Ops.add(Directory.vardir, "/restart_menu")
  # file existing if yast2-online-update wants to be restarted
  @restart_you = Ops.add(Directory.vardir, "/selected_patches.ycp")

  DisplaySplash()

  @Values = [
    "GenericName",
    # not required: "Comment",
    "X-SuSE-YaST-Argument",
    "X-SuSE-YaST-Call",
    "X-SuSE-YaST-Group",
    "X-SuSE-YaST-SortKey",
    "X-SuSE-YaST-RootOnly",
    "X-SuSE-YaST-WSL",
    "Hidden"
  ]

  # always load the desktop files from the system root
  if WFM.scr_chrooted?
    # revert back the chrooting
    handle = Yast::WFM.SCROpen("chroot=/:scr", false)
    Yast::WFM.SCRSetDefault(handle)
  end

  Desktop.Read(@Values)
  @Groups = deep_copy(Desktop.Groups)
  @Modules = deep_copy(Desktop.Modules)
  Builtins.y2debug("Groups=%1", @Groups)
  Builtins.y2debug("Modules=%1", @Modules)

  @non_root_modules = []

  # create the list of modules available to non-root users
  Builtins.foreach(
    Convert.convert(@Modules, from: "map", to: "map <string, map>")
  ) do |name, params|
    @non_root_modules = Builtins.add(@non_root_modules, name) if Ops.get_string(params, "X-SuSE-YaST-RootOnly", "false") != "true"
  end
  Builtins.y2debug("non-root modules: %1", @non_root_modules)

  SCR.Execute(path(".target.remove"), @restart_file) if FileUtils.Exists(@restart_file)

  UI.CloseDialog

  OpenMenu()

  @GroupList = Desktop.GroupList

  # precache groups (#38363)
  @groups = Builtins.maplist(@GroupList) { |gr| Ops.get_string(gr, [0, 0]) }
  Builtins.y2debug("groups=%1", @groups)

  @modules = Builtins.listmap(@groups) do |gr|
    all_modules = Desktop.ModuleList(gr)
    # filter out root-only stuff if the user is not root (#246015)
    if !@root
      all_modules = Builtins.filter(all_modules) do |t|
        Builtins.contains(@non_root_modules, Ops.get_string(t, [0, 0], ""))
      end
    end
    { gr => all_modules }
  end
  Builtins.y2debug("modules=%1", @modules)

  @first = Ops.get(@groups, 0)
  Builtins.y2debug("first=%1", @first)

  # do not show groups containing no modules to the user (#309452)
  @GroupList = Builtins.filter(@GroupList) do |t|
    group = Ops.get_string(t, [0, 0], "")
    Ops.get(@modules, group) != []
  end

  # GroupList = [`item (`id ("Software"), "Software"), ...]
  UI.ReplaceWidget(
    Id(:groups_rep),
    SelectionBox(
      Id(:groups),
      Opt(:notify, :immediate, :keyEvents),
      "",
      @GroupList
    )
  )
  Builtins.y2debug("GroupList=%1", @GroupList)

  ReplaceModuleList(@first)
  UI.SetFocus(Id(:groups))

  loop do
    @event = UI.WaitForEvent
    @eventid = Ops.get(@event, "ID")
    # y2debug too constly: y2debug("event=%1", event);

    if Ops.is_symbol?(@eventid)
      if @eventid == :groups &&
          Ops.get_string(@event, "EventReason", "") == "SelectionChanged"
        @id = Convert.to_string(UI.QueryWidget(Id(:groups), :CurrentItem))
        # ReplaceModuleList(id);
        UI.ReplaceWidget(
          Id(:progs_rep),
          SelectionBox(
            Id(:progs),
            Opt(:notify, :keyEvents),
            "",
            Ops.get(@modules, @id, [])
          )
        )
        next
      elsif (@eventid == :progs || @eventid == :run) &&
          Ops.get_string(@event, "EventReason", "") == "Activated"
        @program = Convert.to_string(
          UI.QueryWidget(Id(:progs), :CurrentItem)
        )
        break if Launch(@program)
      elsif @eventid == :groups &&
          Ops.get_string(@event, "EventReason", "") == "Activated"
        UI.SetFocus(Id(:progs))
      elsif @eventid == :help
        ShowNcursesHelp()
      elsif @eventid == :quit || @eventid == :cancel
        break
      else
        Builtins.y2warning("Event or widget ID not handled: %1", @event)
      end
    elsif Ops.is_string?(@eventid)
      if Ops.get_symbol(@event, "FocusWidgetID", :none) == :groups &&
          @eventid == "CursorRight"
        UI.SetFocus(Id(:progs))
      elsif Ops.get_symbol(@event, "FocusWidgetID", :none) == :progs &&
          @eventid == "CursorLeft"
        UI.SetFocus(Id(:groups))
      else
        Builtins.y2warning("Event or widget ID not handled: %1", @event)
      end
    else
      Builtins.y2warning("Event or widget ID not handled: %1", @event)
    end
  end

  UI.CloseDialog

  # EOF

  nil
end

#OpenMenu ⇒ Object 



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# File 'library/desktop/src/clients/menu.rb', line 212

def OpenMenu
  # check if user is root (#246015)
  output = Convert.to_map(
    SCR.Execute(path(".target.bash_output"), "/usr/bin/id --user")
  )
  @root = Ops.get_string(output, "stdout", "") == "0\n"

  UI.OpenDialog(
    Opt(:defaultsize),
    VBox(
      HBox(
        HSpacing(1),
        Frame(
          "",
          VBox(
            VSpacing(0.4),
            HBox(
              HSpacing(2),
              # Heading for NCurses Control Center
              HCenter(Heading(_("YaST Control Center"))),
              HSpacing(2)
            ),
            VSpacing(0.4)
          )
        ),
        HSpacing(1.5)
      ),
      VSpacing(1.0),
      HBox(
        HSpacing(1),
        HWeight(
          30,
          ReplacePoint(
            Id(:groups_rep),
            SelectionBox(
              Id(:groups),
              Opt(:notify, :immediate, :keyEvents),
              "",
              []
            )
          )
        ),
        HSpacing(1),
        HWeight(
          70,
          ReplacePoint(
            Id(:progs_rep),
            SelectionBox(Id(:progs), Opt(:notify, :keyEvents), "", [])
          )
        ),
        HSpacing(1)
      ),
      VSpacing(1.0),
      HBox(
        HSpacing(1),
        PushButton(Id(:help), Opt(:key_F1), Label.HelpButton),
        HStretch(),
        PushButton(Id(:run), Opt(:defaultButton), _("Run")),
        PushButton(Id(:quit), Opt(:key_F9, :cancelButton), Label.QuitButton),
        HSpacing(1)
      ),
      VSpacing(1)
    )
  )

  # show popup when running as non-root
  if !@root
    Popup.Notify(
      _(
        "YaST2 Control Center is not running as root.\nYou can only see modules that do not require root privileges."
      )
    )
  end

  nil
end

#ReplaceModuleList(group) ⇒ Object 



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# File 'library/desktop/src/clients/menu.rb', line 400

def ReplaceModuleList(group)
  # y2debug too costly: y2debug("group=%1", group);
  UI.ReplaceWidget(
    Id(:progs_rep),
    SelectionBox(
      Id(:progs),
      Opt(:notify, :keyEvents),
      "",
      Ops.get(@modules, group, [])
    )
  )

  nil
end

#ShowNcursesHelp ⇒ Object 



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# File 'library/desktop/src/clients/menu.rb', line 329

def ShowNcursesHelp
  # NCurses (textmode) Control Center headline
  headline = _("Controlling YaST ncurses with the Keyboard")

  # NCurses Control Center help 1/
  help = _(
    "<p>1) <i>General</i><br>\n" \
    "Navigate through the dialog elements with [TAB] to go to\n" \
    "the next element and [SHIFT] (or [ALT]) + [TAB] to move backwards.\n" \
    "Select or activate elements with [SPACE] or [ENTER].\n" \
    "Some elements use arrow keys (e.g., to scroll in lists).</p>"
  ) +
    # NCurses Control Center help 2/10
    _(
      "<p>Tree navigation is also done by arrow keys. To open or close a " \
      "branch use [SPACE]. For modules showing a tree (might look like a list) " \
      "of configuration items on the left side use [ENTER] to get corresponding " \
      "dialog on the right.</p>"
    ) +
    # NCurses Control Center help 3/10
    _(
      "<p>Buttons are equipped with shortcut keys (the highlighted\nletter). Use [ALT] and the letter to activate the button.</p>"
    ) +
    # NCurses Control Center help 4/10
    _(
      "<p>Press [ESC] to close selection pop-ups (e.g., from\nmenu buttons) without choosing anything.</p>\n"
    ) +
    # NCurses Control Center help 5/10
    _(
      "<p>2) <i>Substitution of Keystrokes</i><br>\n" \
      "<p>Because the environment can affect the use of the keyboard,\n" \
      "there is more than one way to navigate the dialog pages.\n" \
      "If [TAB] and [SHIFT] (or [ALT]) + [TAB] do not work,\n" \
      "move focus forward with [CTRL] + [F] and backward with [CTRL] + [B].</p>"
    ) +
    # NCurses Control Center help 6/10
    _(
      "<p>If [ALT] + [letter] does not work,\n" \
      "try [ESC] + [letter]. Example: [ESC] + [H] for [ALT] + [H].\n" \
      "[ESC] + [TAB] is also a substitute for [ALT] + [TAB].</p>"
    ) +
    # NCurses Control Center help 7/10
    _(
      "<p>3) <i>Function Keys</i><br>\n" \
      "F keys provide a quick access to main functions. " \
      "The function key bindings for the current dialog are " \
      "shown in the bottom line.</p>"
    ) +
    # NCurses Control Center help 8/10
    _("<p>The F keys are usually connected to a certain action:</p>") +
    # NCurses Control Center help 9/10
    _(
      "F1  = Help<br>\n" \
      "F2  = Info or Description<br>\n" \
      "F3  = Add<br>\n" \
      "F4  = Edit or Configure<br>\n" \
      "F5  = Delete<br>\n" \
      "F6  = Test<br>\n" \
      "F7  = Expert or Advanced<br>\n" \
      "F8  = Back<br>\n" \
      "F9  = Abort or Cancel<br>\n" \
      "F10 = OK, Next, Finish, or Accept<br>"
    ) +
    # NCurses Control Center help 10/10
    _("<p>In some environments, all or some\nF keys are not available.</p>")

  Popup.LongText(headline, RichText(help), 60, 20)

  nil
end