From 2bae2a4816fd0fb241bd5db0b66efee098ce1924 Mon Sep 17 00:00:00 2001
From: Spencer Janssen <sjanssen@cse.unl.edu>
Date: Fri, 9 Nov 2007 04:18:10 +0100
Subject: Docs for ManageHook

darcs-hash:20071109031810-a5988-04d650e53e838af288c8d4579f433ec60fad6971
---
 XMonad/ManageHook.hs | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

(limited to 'XMonad')

diff --git a/XMonad/ManageHook.hs b/XMonad/ManageHook.hs
index c6bbc8c..a1991f1 100644
--- a/XMonad/ManageHook.hs
+++ b/XMonad/ManageHook.hs
@@ -25,31 +25,40 @@ import XMonad.Operations (floatLocation, reveal)
 type ManageHook = Query (WindowSet -> WindowSet)
 type Query a    = Window -> X a
 
+-- | The identity hook that returns the WindowSet unchanged.
 idHook :: ManageHook
 idHook = doF id
 
+-- | Compose two 'ManageHook's
 (<+>) :: ManageHook -> ManageHook -> ManageHook
 f <+> g = \w -> liftM2 (.) (f w) (g w)
 
+-- | Compose the list of 'ManageHook's
 composeAll :: [ManageHook] -> ManageHook
 composeAll = foldr (<+>) idHook
 
+-- | 'p --> x'.  If 'p' returns 'True', execute the 'ManageHook'.
 (-->) :: Query Bool -> ManageHook -> ManageHook
 p --> f = \w -> p w >>= \b -> if b then f w else idHook w
 
+-- | 'q =? x'. if the result of 'q' equals 'x', return 'True'.
 (=?) :: Eq a => Query a -> a -> Query Bool
 q =? x = \w -> fmap (== x) (q w)
 
+-- | Queries that return the window title, resource, or class.
 title, resource, className :: Query String
 title     = \w -> withDisplay $ \d -> fmap (fromMaybe "") $ io $ fetchName d w
 resource  = \w -> withDisplay $ \d -> fmap resName $ io $ getClassHint d w
 className = \w -> withDisplay $ \d -> fmap resClass $ io $ getClassHint d w
 
+-- | Modify the 'WindowSet' with a pure function.
+doF :: (WindowSet -> WindowSet) -> ManageHook
+doF f = const (return f)
+
+-- | Move the window to the floating layer.
 doFloat :: ManageHook
 doFloat = \w -> fmap (W.float w . snd) (floatLocation w)
 
+-- | Map the window and remove it from the 'WindowSet'.
 doIgnore :: ManageHook
 doIgnore = \w -> reveal w >> return (W.delete w)
-
-doF :: (WindowSet -> WindowSet) -> ManageHook
-doF f = const (return f)
-- 
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