Class: MakeSteps

Inherits:
Object show all
Includes:
HelperClasses
Defined in:
lib/qooxview/helpers/make_steps.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(session, wait = 0, &block) ⇒ MakeSteps

Returns a new instance of MakeSteps.



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# File 'lib/qooxview/helpers/make_steps.rb', line 7

def initialize(session, wait = 0, &block)
  @block = block
  @oldstep = @step = 0
  @wait = wait
  session._s_data._make_step = self
end

Instance Attribute Details

#auto_update ⇒ Object

Returns the value of attribute auto_update.



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# File 'lib/qooxview/helpers/make_steps.rb', line 4

def auto_update
  @auto_update
end

#data ⇒ Object

Returns the value of attribute data.



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# File 'lib/qooxview/helpers/make_steps.rb', line 4

def data
  @data
end

#status ⇒ Object

Returns the value of attribute status.



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# File 'lib/qooxview/helpers/make_steps.rb', line 4

def status
  @status
end

#step ⇒ Object

Returns the value of attribute step.



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# File 'lib/qooxview/helpers/make_steps.rb', line 4

def step
  @step
end

Class Method Details

.make_step(session, data = nil) ⇒ Object 



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# File 'lib/qooxview/helpers/make_steps.rb', line 14

def self.make_step(session, data = nil)
  session._s_data._make_step.make_step(session, data)
end

Instance Method Details

#make_step(session, data = nil) ⇒ Object 



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# File 'lib/qooxview/helpers/make_steps.rb', line 36

def make_step(session, data = nil)
  #dputs_func
  dputs(3){"Oldstep in make_step: #{@oldstep}"}
  if @wait.abs > 0
    if !@thread
      dputs(3) { 'Creating new thread' }
      @thread = Thread.new {
        System.rescue_all do
          @oldstep = @step
          dputs(3) { "Calling block for step #{@step}" }
          begin
            @ret = @block.yield(session, data, @step)
          rescue LocalJumpError => e
            dputs(3) { "LocalJump: #{e.inspect}" }
            @ret = nil
          end
        end
      }
    end
    (0..@wait.abs*10).each { |i|
      dputs(4) { "Waiting #{i}" }
      sleep 0.1
      if !@thread.alive?
        dputs(3) { "Got return-value #{@ret}" }
        @thread = nil
        return reply
      end
    }
    View.reply(:auto_update, @wait) + @status.to_a
  else
    dputs(3) { "Calling block for step #{@step}" }
    begin
      @oldstep = @step
      @ret = @block.yield(session, data, @step)
    rescue LocalJumpError => e
      dputs(3) { "LocalJump: #{e.inspect}" }
      @ret = nil
    end
    reply
  end
end

#reply ⇒ Object 



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# File 'lib/qooxview/helpers/make_steps.rb', line 18

def reply
  #dputs_func
  dputs(3){"Oldstep: #{@oldstep} - #{@step}"}
  if @oldstep == @step && @step >= 0
    @step += 1
    dputs(3) { "Increasing step to #{@step}" }
  end
  @ret ||= []
  dputs(3) { "#{@ret} :: #{status.inspect} :: #{@auto_update.inspect}" }
  @ret.length == 0 and @ret = @status.to_a
  @ret += View.reply(:auto_update, @auto_update.to_i)
  dputs(3) { "ret is now #{@ret.inspect}" }
  @auto_update = nil if (@wait == 0 || @step == -1)
  dputs(3) { "Auto-update is #{@auto_update}" }
  @status = nil
  return @ret
end