content: ----------------------------------------------------------------------------
  -- |
  -- Module      :  XMonad.Hooks.Minimize
  -- Copyright   :  (c) Justin Bogner 2010
  -- License     :  BSD3-style (see LICENSE)
  --
  -- Maintainer  :  Justin Bogner <mail@justinbogner.com>
  -- Stability   :  unstable
  -- Portability :  not portable
  --
  -- Handles window manager hints to minimize and restore windows. Use
  -- this with "XMonad.Layout.Minimize".
  --
  -----------------------------------------------------------------------------
  
  module XMonad.Hooks.Minimize
      ( -- * Usage
        -- $usage
        minimizeEventHook
      ) where
  
  import Data.Monoid
  import Control.Monad(when)
  
  import XMonad
  import XMonad.Layout.Minimize
  
  -- $usage
  -- You can use this module with the following in your @~\/.xmonad\/xmonad.hs@:
  --
  -- > import XMonad.Hooks.Minimize
  -- > import XMonad.Layout.Minimize
  -- >
  -- > myHandleEventHook = minimizeEventHook
  -- > myLayout = minimize (Tall 1 (3/100) (1/2)) ||| Full ||| etc..
  -- > main = xmonad def { layoutHook = myLayout
  -- >                   , handleEventHook = myHandleEventHook }
  
  minimizeEventHook :: Event -> X All
  minimizeEventHook (ClientMessageEvent {ev_window = w,
                                         ev_message_type = mt,
                                         ev_data = dt}) = do
      a_aw <- getAtom "_NET_ACTIVE_WINDOW"
      a_cs <- getAtom "WM_CHANGE_STATE"
  
      when (mt == a_aw) $ sendMessage (RestoreMinimizedWin w)
      when (mt == a_cs) $ do
        let message = fromIntegral . head $ dt
        when (message == normalState) $ sendMessage (RestoreMinimizedWin w)
        when (message == iconicState) $ minimizeWindow w
  
      return (All True)
  minimizeEventHook _ = return (All True)
  