Class: Yast::ProgressClass

Inherits:
Module
  • Object
show all
Defined in:
library/wizard/src/modules/Progress.rb

Instance Method Summary collapse

Instance Method Details

#CloseSuperiorObject

Replaces stages of superior progress by an empty help text.



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# File 'library/wizard/src/modules/Progress.rb', line 862

def CloseSuperior
  if UI.HasSpecialWidget(:Wizard)
    UI.CloseDialog
  else
    Wizard.RestoreHelp("")
  end
  @super_steps = 0
  @super_step = 0

  nil
end

#CurrentSubprogressTypeSymbol

Get current subprogress type



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# File 'library/wizard/src/modules/Progress.rb', line 474

def CurrentSubprogressType
  ret = :none

  return ret if !@visible || Mode.commandline

  # is there the subprogress progress widget?
  if UI.WidgetExists(:subprogress_progress) == true
    ret = :progress
  # or is there the tick subprogress widget?
  elsif UI.WidgetExists(:subprogress_tick) == true
    ret = :tick
  end

  ret
end

#FinishObject

Moves progress bar to the end and marks all stages as completed.



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# File 'library/wizard/src/modules/Progress.rb', line 790

def Finish
  return if !@visible || Mode.commandline

  # decrease the reference counter
  @progress_running = Ops.subtract(@progress_running, 1)

  # set the previous state
  if Ops.greater_than(StackSize(), 0)
    PopState()
    return
  end

  if 0 != @stages
    # unwind remaining stages
    NextStage() while Ops.less_than(@current_stage, @stages)
  end
  if 0 != @steps
    @current_step = @steps
    UpdateProgressBar()
  end

  SetProgressBarTitle(" ")

  nil
end

#IsRunningObject



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# File 'library/wizard/src/modules/Progress.rb', line 144

def IsRunning
  # Check if any progress bar exists. If it does not, we're not running
  # (querying progress counter is not enough, a module ran previously
  # might have failed to reset the counter properly)
  Ops.greater_than(@progress_running, 0) &&
    UI.WidgetExists(:progress_replace_point) == true
end

#mainObject



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# File 'library/wizard/src/modules/Progress.rb', line 93

def main
  Yast.import "UI"

  textdomain "base"

  Yast.import "CommandLine"
  Yast.import "Wizard"
  Yast.import "Mode"
  Yast.import "Directory"
  Yast.import "FileUtils"

  # *******************************************************************
  # // !!! IMPORTANT !!!
  # // If you add here a new variable which is valid only for the current
  # // progress do not forget to add it to PushState() and PopState()
  # // functions which are are used for nested progresses!
  # *******************************************************************

  # Number of stages.
  @stages = 0
  # Number of steps
  @steps = 0
  # Current stage
  @current_stage = 0
  # Current step
  @current_step = 0
  # list of stage-titles
  @titles = []

  # is progress bar used?
  @visible = true

  # superior progress (stages) bar
  @super_steps = 0
  @super_step = 0
  @super_stages = []

  # remember the last max. value of the subprogress bar
  @last_subprogress_max = 0

  @progress_running = 0

  # remember cumulated number of steps for nested progresses
  @progress_max = 0
  @progress_val = 0

  # stack with the running progresses
  # the top of the stack is the end of the list
  @progress_stack = []
end

#Mark(kind) ⇒ Object



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# File 'library/wizard/src/modules/Progress.rb', line 308

def Mark(kind)
  return "-" if kind == :todo
  return UI.Glyph(:BulletArrowRight) if kind == :current
  return UI.Glyph(:CheckMark) if kind == :done
  "?@%!"
end

#MarkId(i) ⇒ Object



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# File 'library/wizard/src/modules/Progress.rb', line 317

def MarkId(i)
  Id(Builtins.sformat("mark_stage_%1", i))
end

#New(window_title, progress_title, length, stg, tits, help_text) ⇒ Object

New complex progress bar with stages.



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# File 'library/wizard/src/modules/Progress.rb', line 334

def New(window_title, progress_title, length, stg, tits, help_text)
  stg = deep_copy(stg)
  tits = deep_copy(tits)
  return if !@visible

  return if Mode.commandline

  # a progress is already running, remember the current status
  PushState() if IsRunning()

  Builtins.y2milestone(
    "Progress::New(%1, %2, %3)",
    window_title,
    length,
    stg
  )

  orig_current_step = @current_step

  @steps = length
  @stages = Builtins.size(stg)
  @titles = deep_copy(tits)
  @current_step = -1
  @current_stage = -1

  if Ops.less_than(length, Builtins.size(stg))
    Builtins.y2warning(
      "Number of stages (%1) is greater than number of steps (%2)",
      Builtins.size(stg),
      length
    )
  end

  if progress_title == ""
    # Reserve space for future progress bar labels. The ProgressBar
    # widget will suppress the label above the progress bar if the
    # initial label string is empty.
    progress_title = " "
  end

  # do not replace the UI, there is a progress already running
  if IsRunning()
    @progress_max = Ops.multiply(@progress_max, @steps)

    if StackSize() == 1
      @progress_val = Ops.multiply(orig_current_step, @steps)
    else
      prev_state = TopState()
      prev_progress_val = Ops.get_integer(prev_state, "progress_val", 0)

      @progress_val = Ops.multiply(prev_progress_val, @steps)
    end

    # set the maximum value of the progress bar
    UI.ReplaceWidget(
      Id(:progress_replace_point),
      ProgressBar(Id(:pb), progress_title, @progress_max, @progress_val)
    )
    Builtins.y2debug("New progress: %1/%2", @progress_val, @progress_max)

    # increase the reference counter
    @progress_running = Ops.add(@progress_running, 1)
    return
  else
    @progress_max = @steps
  end

  bar = VBox(ProgressBar(Id(:pb), progress_title, length, 0)) # progressbar only
  if 0 != @stages
    bar = VBox(VSpacing(1))
    i = 0
    label_heading = Mark(:todo)

    items = VBox()
    Builtins.foreach(stg) do |item|
      items = Builtins.add(
        items,
        HBox(
          HSpacing(1),
          # check_ycp wants this text to be translatable. I do not know why.
          # HSquash + MinWidth(4) reserves a defined space for 'mark' plus 'emtpy space'
          # see bnc #395752
          HSquash(MinWidth(4, Heading(MarkId(i), label_heading))),
          Label(item),
          HStretch()
        )
      )
      i = Ops.add(i, 1)
    end
    bar = Builtins.add(bar, Left(HBox(HSquash(items))))

    if 0 != @steps
      bar = Builtins.add(
        bar,
        VBox(
          VStretch(),
          ReplacePoint(Id(:subprogress_replace_point), Empty()),
          ReplacePoint(
            Id(:progress_replace_point),
            ProgressBar(Id(:pb), progress_title, length, 0)
          ),
          VSpacing(2)
        )
      )
    else
      bar = Builtins.add(
        bar,
        VBox(
          VStretch(),
          ReplacePoint(Id(:subprogress_replace_point), Empty()),
          ReplacePoint(
            Id(:progress_replace_point),
            Label(Id(:pb), Opt(:hstretch), progress_title)
          ),
          VSpacing(2)
        )
      )
    end
  end

  # patch from Michal Srb https://bugzilla.novell.com/show_bug.cgi?id=406890#c7
  if !Mode.test && UI.WidgetExists(Id(:contents))
    UI.ReplaceWidget(Id(:contents), bar)
  end

  if !UI.WizardCommand(term(:SetDialogHeading, window_title))
    UI.ChangeWidget(Id(:title), :Value, window_title)
    UI.RecalcLayout
  end
  Wizard.SetHelpText(help_text) if "" != help_text && nil != help_text
  Wizard.DisableBackButton
  Wizard.DisableNextButton

  @progress_running = Ops.add(@progress_running, 1)

  nil
end

#NewProgressIcons(window_title, progress_title, length, stg, tits, help_textmap, _icons_definition) ⇒ Object

Deprecated.

Use #New instead.

Obsolete function adding icon-support to progress dialog. We don't use icons in popups any more.

See Also:

  • Progress::New()


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# File 'library/wizard/src/modules/Progress.rb', line 590

def NewProgressIcons(window_title, progress_title, length, stg, tits, help_textmap, _icons_definition)
  Builtins.y2warning(-1, "#{__method__} is deprecated. Use Progess::New instead!")
  New(window_title, progress_title, length, stg, tits, help_textmap)
end

#NextStageObject

Advance stage, advance step by 1 and set progress bar caption to that defined in New.



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# File 'library/wizard/src/modules/Progress.rb', line 670

def NextStage
  return if !@visible
  NextStep()

  if 0 == @stages || Ops.greater_than(@current_stage, @stages)
    Builtins.y2error("Non-existing stage requested.")
    return
  end

  @current_stage = Ops.add(@current_stage, 1)

  # do not update the UI in a nested progress
  return if Ops.greater_than(StackSize(), 0)

  if Mode.commandline
    if Ops.less_than(@current_stage, @stages) &&
        Ops.less_than(@current_stage, Builtins.size(@titles))
      CommandLine.PrintVerbose(Ops.get_string(@titles, @current_stage, ""))
    end
    return
  end

  if Ops.greater_than(@current_stage, 0)
    UI.ChangeWidget(
      MarkId(Ops.subtract(@current_stage, 1)),
      :Value,
      Mark(:done)
    )
  end
  # we may be past the last stage
  if Ops.less_than(@current_stage, @stages)
    if Ops.less_than(@current_stage, Builtins.size(@titles))
      SetProgressBarTitle(Ops.get_string(@titles, @current_stage, ""))
    end
    UI.ChangeWidget(MarkId(@current_stage), :Value, Mark(:current))
  end

  nil
end

#NextStageStep(st) ⇒ Object

Jumps to the next stage and sets step to st.



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# File 'library/wizard/src/modules/Progress.rb', line 773

def NextStageStep(st)
  return if !@visible || Mode.commandline
  NextStage()
  Step(st)

  nil
end

#NextStepObject

Some people say it is the best operating system ever. But now to the function. Advances progress bar value by 1.



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# File 'library/wizard/src/modules/Progress.rb', line 660

def NextStep
  return if !@visible || Mode.commandline || 0 == @steps
  @current_step = Ops.add(@current_step, 1)
  UpdateProgressBar()

  nil
end

#offObject

Deprecated.

set

Turns progress bar off. All Progress

calls return immediatelly.



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# File 'library/wizard/src/modules/Progress.rb', line 289

def off
  # no "deprecated" warning
  # because it is ok to use this function in testsuites
  @visible = false

  nil
end

#onObject

Deprecated.

set

Turns progress bar on after calling Progress::off.



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# File 'library/wizard/src/modules/Progress.rb', line 299

def on
  Builtins.y2warning(-1, "Deprecated function. Use Progress::set instead")
  @visible = true

  nil
end

#OpenSuperior(title, stages) ⇒ Object

Creates a higher-level progress bar made of stages. Currently it is placed instead of help text.



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# File 'library/wizard/src/modules/Progress.rb', line 820

def OpenSuperior(title, stages)
  stages = deep_copy(stages)
  if UI.HasSpecialWidget(:Wizard)
    Wizard.OpenAcceptAbortStepsDialog
    UI.WizardCommand(term(:AddStepHeading, title))

    idx = 0
    @super_steps = Builtins.size(stages)
    @super_step = -1
    Builtins.foreach(stages) do |s|
      id = Builtins.sformat("super_progress_%1", idx)
      UI.WizardCommand(term(:AddStep, s, id))
    end
    UI.WizardCommand(term(:UpdateSteps)) # old behaviour
  else
    left = VBox(VStretch())
    right = VBox(VStretch())
    idx = 0
    @super_steps = Builtins.size(stages)
    @super_step = -1
    Builtins.foreach(stages) do |i|
      id = Builtins.sformat("super_progress_%1", idx)
      left = Builtins.add(left, Heading(Id(id), "-  "))
      right = Builtins.add(right, Label(Opt(:hstretch), i))
      left = Builtins.add(left, VStretch())
      right = Builtins.add(right, VStretch())
      idx = Ops.add(idx, 1)
    end
    left = Builtins.add(left, HSpacing(4))
    right = Builtins.add(right, HStretch())
    Wizard.ReplaceHelp(
      VBox(
        HBox(HSpacing(1), Frame(title, HBox(HSpacing(1), left, right))),
        VSpacing(0.5)
      )
    )
  end

  nil
end

#PopStateObject

pop the progress state from the stack and set it



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# File 'library/wizard/src/modules/Progress.rb', line 203

def PopState
  # pop the config
  state = Ops.get(
    @progress_stack,
    Ops.subtract(Builtins.size(@progress_stack), 1),
    {}
  )
  @progress_stack = Builtins.remove(
    @progress_stack,
    Ops.subtract(Builtins.size(@progress_stack), 1)
  )

  Builtins.y2milestone("setting up the previous state: %1", state)

  # refresh the variables
  @stages = Ops.get_integer(state, "stages", 0)
  @steps = Ops.get_integer(state, "steps", 0)
  @current_step = Ops.get_integer(state, "current_step", 0)
  @current_stage = Ops.get_integer(state, "current_stage", 0)
  @titles = Ops.get_list(state, "titles", [])
  @last_subprogress_max = Ops.get_integer(state, "last_subprogress_max", 0)
  @progress_max = Ops.get_integer(state, "progress_max", 0)
  @progress_val = Ops.get_integer(state, "progress_val", 0)

  pb_value = Ops.get_integer(state, "progress_value", 0)
  pb_value = Ops.add(pb_value.nil? ? 0 : pb_value, 1)

  # refresh the progress widget, add one step for the embedded progress
  UI.ReplaceWidget(
    Id(:progress_replace_point),
    ProgressBar(
      Id(:pb),
      Ops.get_string(state, "progress_label", ""),
      @steps,
      pb_value
    )
  )

  type = Ops.get_symbol(state, "subprogress_type", :none)
  SubprogressType(type, @last_subprogress_max)

  if type == :progress || type == :tick
    SubprogressTitle(Ops.get_string(state, "subprogress_label", ""))
    SubprogressValue(Ops.get_integer(state, "subprogress_value", 0))
  end

  nil
end

#PushStateObject

push the current progress into the stack



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# File 'library/wizard/src/modules/Progress.rb', line 153

def PushState
  current_subprogress = CurrentSubprogressType()
  state = {
    # global variable
    "stages"               => @stages,
    "steps"                => @steps,
    "current_step"         => @current_step,
    "current_stage"        => @current_stage,
    "titles"               => @titles,
    "last_subprogress_max" => @last_subprogress_max,
    "visible"              => @visible,
    # state of the widgets
    "subprogress_type"     => current_subprogress,
    "progress_label"       => Convert.to_string(
      UI.QueryWidget(Id(:pb), :Label)
    ),
    "progress_value"       => Convert.to_integer(
      UI.QueryWidget(Id(:pb), :Value)
    ),
    "progress_max"         => @progress_max,
    "progress_val"         => @progress_val
  }

  if current_subprogress == :progress
    Ops.set(
      state,
      "subprogress_label",
      Convert.to_string(UI.QueryWidget(Id(:subprogress_progress), :Label))
    )
    Ops.set(
      state,
      "subprogress_value",
      Convert.to_integer(UI.QueryWidget(Id(:subprogress_progress), :Value))
    )
  elsif current_subprogress == :tick
    Ops.set(
      state,
      "subprogress_label",
      Convert.to_string(UI.QueryWidget(Id(:subprogress_tick), :Label))
    )
  end

  Builtins.y2milestone("Current state: %1", state)

  @progress_stack = Builtins.add(@progress_stack, state)

  nil
end

#set(state) ⇒ Object

Sets progress bar state:

on = normal operation, off = All Progress

calls return immediatelly.



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# File 'library/wizard/src/modules/Progress.rb', line 271

def set(state)
  prev = @visible
  @visible = state
  prev
end

#SetProgressBarTitle(s) ⇒ Object

the bar is either `ProgressBar or `Label



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# File 'library/wizard/src/modules/Progress.rb', line 652

def SetProgressBarTitle(s)
  UI.ChangeWidget(Id(:pb), 0 == @steps ? :Value : :Label, s)

  nil
end

#Simple(window_title, progress_title, length, help_text) ⇒ Object

Create simple progress bar with no stages, only with progress bar.



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# File 'library/wizard/src/modules/Progress.rb', line 600

def Simple(window_title, progress_title, length, help_text)
  New(window_title, progress_title, length, [], [], help_text)

  nil
end

#StackSizeObject

return size of the progress stack



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# File 'library/wizard/src/modules/Progress.rb', line 253

def StackSize
  Builtins.size(@progress_stack)
end

#Stage(st, title, step) ⇒ Object

Go to stage st, change progress bar title to title and set progress bar step to step.



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# File 'library/wizard/src/modules/Progress.rb', line 730

def Stage(st, title, step)
  return if !@visible

  Step(step) if -1 != step

  # another progress is running
  # do not change the current stage, calculate the target step
  if Ops.greater_than(StackSize(), 0)
    UpdateProgressBar()
    return
  end

  if !Mode.commandline && Ops.greater_or_equal(@current_stage, 0)
    UI.ChangeWidget(
      MarkId(@current_stage),
      :Value,
      Mark(Ops.greater_than(st, @current_stage) ? :done : :todo)
    )
  end

  @current_stage = st
  s = ""
  if Ops.less_than(@current_stage, Builtins.size(@titles))
    s = Ops.get_string(@titles, @current_stage, "")
  end
  s = title if nil != title
  if Ops.less_than(@current_stage, Builtins.size(@titles))
    if Mode.commandline
      CommandLine.PrintVerbose(s)
      return
    else
      SetProgressBarTitle(s)
    end
  end
  if Ops.less_than(@current_stage, @stages)
    UI.ChangeWidget(MarkId(@current_stage), :Value, Mark(:current))
  end

  nil
end

#statusBoolean

Returns currently selected visibility status of all UI-modifying Progress

functions.

See Also:

  • Yast::ProgressClass#Progress#Progress::set
  • Yast::ProgressClass#Progress#Progress::off
  • Yast::ProgressClass#Progress#Progress::on


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# File 'library/wizard/src/modules/Progress.rb', line 283

def status
  @visible
end

#Step(st) ⇒ Object

Changes progress bar value to st.



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# File 'library/wizard/src/modules/Progress.rb', line 712

def Step(st)
  return if !@visible || Mode.commandline || 0 == @steps

  return if Ops.less_than(st, 0) || Ops.greater_than(st, @steps)

  @current_step = st

  UpdateProgressBar()

  nil
end

#StepSuperiorObject

Make one step in a superior progress bar.



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# File 'library/wizard/src/modules/Progress.rb', line 875

def StepSuperior
  if Ops.greater_or_equal(@super_step, 0) &&
      Ops.less_than(@super_step, @super_steps)
    if !UI.HasSpecialWidget(:Wizard)
      UI.ChangeWidget(
        Id(Builtins.sformat("super_progress_%1", @super_step)),
        :Value,
        UI.Glyph(:CheckMark)
      )
    end
  end
  @super_step = Ops.add(@super_step, 1)
  return if Ops.greater_or_equal(@super_step, @super_steps)
  if UI.HasSpecialWidget(:Wizard)
    UI.WizardCommand(
      term(
        :SetCurrentStep,
        Builtins.sformat("super_progress_%1", @super_step)
      )
    )
  else
    UI.ChangeWidget(
      Id(Builtins.sformat("super_progress_%1", @super_step)),
      :Value,
      UI.Glyph(:BulletArrowRight)
    )
  end

  nil
end

#SubprogressTitle(title) ⇒ Object

Set the label of the subprogress



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# File 'library/wizard/src/modules/Progress.rb', line 563

def SubprogressTitle(title)
  return if !@visible || Mode.commandline

  current_type = CurrentSubprogressType()

  if current_type == :progress
    UI.ChangeWidget(Id(:subprogress_progress), :Label, title)
  elsif current_type == :tick
    UI.ChangeWidget(Id(:subprogress_tick), :Label, title)
  else
    Builtins.y2warning("No subprogress is defined, cannot set the label!")
  end

  nil
end

#SubprogressType(type, max_value) ⇒ Object

Create (or remove) a new subprogress above the progress bar, can be use for detailed progress of the current task `tick (tick progress) or `none (no subprogress, intended for removing the progress bar from the dialog)



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# File 'library/wizard/src/modules/Progress.rb', line 514

def SubprogressType(type, max_value)
  return if !@visible || Mode.commandline

  Builtins.y2debug(
    "SubprogressType: type: %1, max_value: %2",
    type,
    max_value
  )

  if type == CurrentSubprogressType()
    if type == :progress
      # just reset the current value of the progress bar if the requested progress is the same
      if max_value == @last_subprogress_max
        Builtins.y2milestone("Resetting the subprogressbar...")
        SubprogressValue(0)
        return
      end
    elsif type == :tick
      # just restart the animation
      UI.ChangeWidget(Id(:subprogress_tick), :Alive, true)
    else
      Builtins.y2milestone("Subprogress initialization skipped")
      return
    end
  end

  widget = Empty()

  if type == :progress
    widget = ProgressBar(Id(:subprogress_progress), " ", max_value, 0)
  elsif type == :tick
    widget = BusyIndicator(Id(:subprogress_tick), " ", 3000)
  elsif type == :none
    widget = Empty()
  else
    Builtins.y2error("Unknown subprogress type: %1", type)
  end

  Builtins.y2debug("widget: %1", widget)
  UI.ReplaceWidget(Id(:subprogress_replace_point), widget)

  # remember the max. value
  @last_subprogress_max = max_value

  nil
end

#SubprogressValue(value) ⇒ Object

Set value of the subprogress



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# File 'library/wizard/src/modules/Progress.rb', line 492

def SubprogressValue(value)
  return if !@visible || Mode.commandline

  current_type = CurrentSubprogressType()

  # normal progress
  if current_type == :progress
    UI.ChangeWidget(Id(:subprogress_progress), :Value, value)
  # tick progress
  elsif current_type == :tick
    UI.ChangeWidget(Id(:subprogress_tick), :Alive, true)
  else
    Builtins.y2warning("No subprogress is defined, cannot set the value!")
  end

  nil
end

#Title(t) ⇒ Object

Change progress bar title.



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# File 'library/wizard/src/modules/Progress.rb', line 783

def Title(t)
  SetProgressBarTitle(t) if @visible && !Mode.commandline

  nil
end

#TopStateObject

return the value on the top of the stack the stack is not changed



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# File 'library/wizard/src/modules/Progress.rb', line 259

def TopState
  Ops.get(
    @progress_stack,
    Ops.subtract(Builtins.size(@progress_stack), 1),
    {}
  )
end

#UpdateProgressBarObject

Uses current_step



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# File 'library/wizard/src/modules/Progress.rb', line 607

def UpdateProgressBar
  if Ops.greater_than(@current_step, @steps)
    Builtins.y2error(
      -2,
      "Progress bar has only %1 steps, not %2.",
      @steps,
      @current_step
    )
    return
  end

  progress_value = @current_step

  if StackSize() != 0
    # recalculate the progress bar value according to the parent progress
    prev_state = TopState()
    prev_step = Ops.get_integer(prev_state, "current_step", 0)

    progress_value = Ops.add(
      Ops.multiply(prev_step, @steps),
      Ops.greater_than(@current_step, 0) ? @current_step : 0
    )
  end

  Builtins.y2debug(
    "New progress value: %1, current_step: %2/%3 (%4%%)",
    progress_value,
    @current_step,
    @steps,
    Ops.divide(
      Ops.multiply(
        100.0,
        Convert.convert(progress_value, from: "integer", to: "float")
      ),
      Convert.convert(@progress_max, from: "integer", to: "float")
    )
  )

  UI.ChangeWidget(Id(:pb), :Value, progress_value)

  nil
end