Class: FXIrb

Inherits:
FXText
  • Object
show all
Includes:
Responder, Singleton
Defined in:
lib/fxirb.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(p, tgt, sel, opts) ⇒ FXIrb

Returns a new instance of FXIrb.



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# File 'lib/fxirb.rb', line 158

def initialize(p, tgt, sel, opts)
  FXMAPFUNC(SEL_KEYRELEASE, 0, "onKeyRelease")
  FXMAPFUNC(SEL_KEYPRESS, 0, "onKeyPress")
  FXMAPFUNC(SEL_LEFTBUTTONPRESS,0,"onLeftBtnPress")
  FXMAPFUNC(SEL_MIDDLEBUTTONPRESS,0,"onMiddleBtnPress")
  FXMAPFUNC(SEL_LEFTBUTTONRELEASE,0,"onLeftBtnRelease")

  super
  setFont(FXFont.new(FXApp.instance, "lucida console", 9))
  @anchor = 0
end

Instance Attribute Details

#input ⇒ Object (readonly)

Returns the value of attribute input.



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# File 'lib/fxirb.rb', line 144

def input
  @input
end

Class Method Details

.init(p, tgt, sel, opts) ⇒ Object 



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# File 'lib/fxirb.rb', line 146

def FXIrb.init(p, tgt, sel, opts)
  unless @__instance__
    Thread.critical = true
    begin
      @__instance__ ||= new(p, tgt, sel, opts)
    ensure
      Thread.critical = false
    end
  end
  return @__instance__
end

Instance Method Details

#crash ⇒ Object 



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# File 'lib/fxirb.rb', line 194

def crash
  instance_eval(&@exit_proc)
end

#create ⇒ Object 



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# File 'lib/fxirb.rb', line 170

def create
  super
  setFocus
  # IRB initialization
  @inputAdded = 0
  @input = IO.pipe
  $DEFAULT_OUTPUT = self

  @im = FXIRBInputMethod.new
  @irb = Thread.new {
    IRB.start_in_fxirb(@im)
    self.crash
  }


  @multiline = false

  @exit_proc = lambda {exit}
end

#dedent ⇒ Object 



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# File 'lib/fxirb.rb', line 284

def dedent
  str = getline
  @anchor -= 2
  rmline
  appendText(str)
  setCursorPos(getLength)
end

#emptyline? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/fxirb.rb', line 310

def emptyline?
  getline == ""
end

#get_line ⇒ Object 



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# File 'lib/fxirb.rb', line 373

def get_line
  @anchor = getLength
  if @inputAdded == 0
    Thread.stop
  end
  @inputAdded -= 1
  return @input[0].gets
end

#getline ⇒ Object 



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# File 'lib/fxirb.rb', line 300

def getline
  extractText(@anchor, getLength-@anchor)
end

#history(dir) ⇒ Object 



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# File 'lib/fxirb.rb', line 292

def history(dir)
  str = (dir == :prev) ? @im.prevCmd.chomp : @im.nextCmd.chomp
  if str != ""
    removeText(@anchor, getLength-@anchor)
    write(str)
  end
end

#indented? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/fxirb.rb', line 314

def indented?
  extractText(@anchor-2, 2) == "  "
end

#newLineEntered ⇒ Object 



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# File 'lib/fxirb.rb', line 338

def newLineEntered
  processCommandLine(extractText(@anchor, getLength-@anchor))
end

#on_exit(&block) ⇒ Object 



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# File 'lib/fxirb.rb', line 190

def on_exit(&block)
  @exit_proc = block
end

#onKeyPress(sender, sel, event) ⇒ Object 



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# File 'lib/fxirb.rb', line 206

def onKeyPress(sender,sel,event)
  case event.code
  when Fox::KEY_Return, Fox::KEY_KP_Enter
    setCursorPos(getLength)
    super
  when Fox::KEY_Up,Fox::KEY_KP_Up
    str = extractText(@anchor, getCursorPos-@anchor)
    if str =~ /\n/
      @multiline = true
      super
      setCursorPos(@anchor+1) if getCursorPos < @anchor
    else
      history(:prev) unless @multiline
    end
  when Fox::KEY_Down,Fox::KEY_KP_Down
    str = extractText(getCursorPos, getLength - getCursorPos)
    if str =~ /\n/
      @multiline = true
      super
    else
      history(:next) unless @multiline
    end
  when Fox::KEY_Left,Fox::KEY_KP_Left
    if getCursorPos > @anchor
      super
    end
  when Fox::KEY_Delete,Fox::KEY_KP_Delete,Fox::KEY_BackSpace
    if getCursorPos > @anchor
      super
    end
  when Fox::KEY_Home, Fox::KEY_KP_Home
    setCursorPos(@anchor)
  when Fox::KEY_End, Fox::KEY_KP_End
    setCursorPos(getLength)
  when Fox::KEY_Page_Up, Fox::KEY_KP_Page_Up
    history(:prev)
  when Fox::KEY_Page_Down, Fox::KEY_KP_Page_Down
    history(:next)
  when Fox::KEY_bracketright
    #auto-dedent if the } or ] is on a line by itself
    if (emptyline? or (getline == "en")) and indented?
      dedent
    end
    super
  when Fox::KEY_u
    if (event.state & CONTROLMASK) != 0
      str = extractText(getCursorPos, getLength - getCursorPos)
      rmline
      appendText(str)
      setCursorPos(@anchor)
    end
    super
  when Fox::KEY_k
    if (event.state & CONTROLMASK) != 0
      str = extractText(@anchor, getCursorPos-@anchor)
      rmline
      appendText(str)
      setCursorPos(getLength)
    end
    super
  when Fox::KEY_d
    if (event.state & CONTROLMASK) != 0
      #Ctrl - D
      rmline
      appendText("exit")
      newLineEntered
    else
      # test for 'end' so we can dedent
      if (getline == "en") and indented?
        dedent
      end
    end
    super
  else
    super
  end
end

#onKeyRelease(sender, sel, event) ⇒ Object 



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# File 'lib/fxirb.rb', line 198

def onKeyRelease(sender, sel, event)
  case event.code
  when Fox::KEY_Return, Fox::KEY_KP_Enter
    newLineEntered
  end
  return 1
end

#onLeftBtnPress(sender, sel, event) ⇒ Object 



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# File 'lib/fxirb.rb', line 318

def onLeftBtnPress(sender,sel,event)
  @store_anchor = @anchor
  setFocus
  super
end

#onLeftBtnRelease(sender, sel, event) ⇒ Object 



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# File 'lib/fxirb.rb', line 324

def onLeftBtnRelease(sender,sel,event)
  super
  @anchor = @store_anchor
  setCursorPos(@anchor)
  setCursorPos(getLength)
end

#onMiddleBtnPress(sender, sel, event) ⇒ Object 



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# File 'lib/fxirb.rb', line 331

def onMiddleBtnPress(sender,sel,event)
  pos=getPosAt(event.win_x,event.win_y)
  if pos >= @anchor
    super
  end
end

#processCommandLine(cmd) ⇒ Object 



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# File 'lib/fxirb.rb', line 342

def processCommandLine(cmd)
  @multiline = false
  lines = cmd.split(/\n/)
  lines.each {|i|
    @input[1].puts i
    @inputAdded += 1
  }
  @im.print_prompt = false
  while (@inputAdded > 0) do
    @irb.run
  end
  @im.merge_last(lines.length)
  @im.print_prompt = true
end

#rmline ⇒ Object 



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# File 'lib/fxirb.rb', line 304

def rmline
  str = getline
  removeText(@anchor, getLength-@anchor)
  str
end

#sendCommand(cmd) ⇒ Object 



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# File 'lib/fxirb.rb', line 357

def sendCommand(cmd)
  setCursorPos(getLength)
  makePositionVisible(getLength) unless isPosVisible(getLength)
  cmd += "\n"
  appendText(cmd)
  processCommandLine(cmd)
end

#write(obj) ⇒ Object 



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# File 'lib/fxirb.rb', line 365

def write(obj)
  str = obj.to_s
  appendText(str)
  setCursorPos(getLength)
  makePositionVisible(getLength) unless isPosVisible(getLength)
  return str.length
end