Class: Salticid::Interface

Inherits:
Object show all
Defined in:
lib/salticid/interface.rb,
lib/salticid/interface/view.rb,
lib/salticid/interface/tab_view.rb,
lib/salticid/interface/host_view.rb,
lib/salticid/interface/resizable.rb

Defined Under Namespace

Modules: Resizeable Classes: HostView, TabView, View

Constant Summary collapse

COLORS =
{
  :info => Curses::COLOR_WHITE,
  :error => Curses::COLOR_RED,
  :warn => Curses::COLOR_YELLOW,
  :debug => Curses::COLOR_CYAN,
  :stderr => Curses::COLOR_MAGENTA,
  :finished => Curses::COLOR_GREEN
}
COLOR_PAIRS =
{}
KEY_SPACE =

Keys

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KEY_ENTER =
13
KEY_SCROLL_UP =
258
KEY_SCROLL_DOWN =
259

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(salticid) ⇒ Interface

Returns a new instance of Interface.


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# File 'lib/salticid/interface.rb', line 38

def initialize(salticid)
  self.class.interfaces << self


  # Set up ncurses
  Curses.init_screen
  Curses.cbreak
  Curses.noecho
  Curses.nonl
  # Gone in Ruby Curses because ???
  # Curses.stdscr.intrflush false
  Curses.stdscr.keypad true
  Curses.start_color
  Curses.use_default_colors

  @salticid = salticid
  @hosts = []
  @tabs = TabView.new(
    self,
    :height => 1
  )

  @tabs.window.keypad true

  colorize
end

Instance Attribute Details

#hostsObject (readonly)

Returns the value of attribute hosts


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# File 'lib/salticid/interface.rb', line 36

def hosts
  @hosts
end

#salticidObject (readonly)

Returns the value of attribute salticid


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# File 'lib/salticid/interface.rb', line 36

def salticid
  @salticid
end

Class Method Details

.interfacesObject


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# File 'lib/salticid/interface.rb', line 26

def self.interfaces
  @interfaces ||= []
end

.shutdown(*args) ⇒ Object


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# File 'lib/salticid/interface.rb', line 30

def self.shutdown *args
  @interfaces.each do |i|
    i.shutdown *args
  end
end

Instance Method Details

#add_tab(host) ⇒ Object

Add a new tab interface backed by source.


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# File 'lib/salticid/interface.rb', line 66

def add_tab(host)
  @tabs.active.hide if tab

  hv = HostView.new(
    self,
    :host => host,
    :top => 1,
    :height => Curses.lines - 1
  )
  hv.on_state_change do |state|
    @tabs.render
  end
  @tabs << hv
  tab.show
end

#colorizeObject

Set up colors


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# File 'lib/salticid/interface.rb', line 83

def colorize
  COLORS.each_with_index do |c, i|
    pair_num = i + 1
    Curses.init_pair pair_num, c.last, -1
    COLOR_PAIRS[c.first] = pair_num
  end
end

#delete_tab(target) ⇒ Object


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# File 'lib/salticid/interface.rb', line 91

def delete_tab(target)
  begin
    target.hide
    @tabs.delete target
  ensure
    tab.show if tab
  end
end

#joinObject

Join the mainloop.


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# File 'lib/salticid/interface.rb', line 101

def join
  @main.join
end

#mainObject

Mainloop


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# File 'lib/salticid/interface.rb', line 106

def main
  @main = Thread.new do
    Thread.current.priority = -1
    main_thread = Thread.current
    trap("WINCH") { resize if main_thread.alive? }
    trap("SIGINT") { exit }

    loop do
      # Get character
      if IO.select [$stdin], nil, nil, 1
        char = @tabs.window.getch
      else
        Thread.pass
        next
      end

      File.open("/tmp/curses.log", "a") { |f|
        f.puts char.inspect
      }

      # Do stuff
      case char
      when 9 # tab
        @tabs.scroll
      when "q" # q
        shutdown
      when Curses::KEY_LEFT
        @tabs.scroll -1
      when Curses::KEY_RIGHT
        @tabs.scroll 1
      when Curses::KEY_PPAGE
        tab.scroll -tab.height / 2
      when Curses::KEY_NPAGE
        tab.scroll tab.height / 2
      when Curses::KEY_UP
        tab.scroll -1 
      when Curses::KEY_DOWN
        tab.scroll 1
      end
    end
  end
end

#resizeObject

Resize to fit display


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# File 'lib/salticid/interface.rb', line 150

def resize
  # We need to nuke ncurses to pick up the new dimensions
  Curses.def_prog_mode
  Curses.close_screen
  Curses.reset_prog_mode
  height, width = Curses.dimensions
   
  # Resize tabs 
  @tabs.resize(
   :width => width,
   :height => height
  )
  @tabs.render
end

#shutdown(and_exit = true) ⇒ Object

Shut down interface


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# File 'lib/salticid/interface.rb', line 166

def shutdown(and_exit = true)
  # Shut down views
  @tabs.shutdown
 
  # Shut down ncurses
  Curses.echo
  Curses.nocbreak
  Curses.nl
  Curses.close_screen

  # Stop interface
  @main.exit rescue nil

  # Exit if okay
  exit if and_exit
end

#switch(target = nil) ⇒ Object

Switch to a different conversation


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# File 'lib/salticid/interface.rb', line 184

def switch(target = nil)
  if target
    # Switch to a specific tab
    @tabs.switch_to_label target
  else
    # Switch to the next tab
    @tabs.scroll
  end
end

#tabObject


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# File 'lib/salticid/interface.rb', line 194

def tab
  @tabs.active
end