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-rw-r--r--XPrompt.hs29
1 files changed, 26 insertions, 3 deletions
diff --git a/XPrompt.hs b/XPrompt.hs
index 9546151..e46beda 100644
--- a/XPrompt.hs
+++ b/XPrompt.hs
@@ -23,6 +23,7 @@ module XMonadContrib.XPrompt (
, XPPosition (..)
, XPConfig (..)
, XPrompt (..)
+ -- * Utilities
, mkUnmanagedWindow
, getLastWord
, skipLastWord
@@ -50,8 +51,8 @@ import System.Posix.Files
-- $usage
--
--- For example usage see 'XMonadContrib.ShellPrompt',
--- 'XMonadContrib.XMonadPrompt' or 'XMonadContrib.SshPrompt'
+-- For usage examples see 'ShellPrompt',
+-- 'XMonadPrompt' or 'SshPrompt'
--
-- TODO:
--
@@ -99,6 +100,16 @@ instance Show XPType where
instance XPrompt XPType where
showXPrompt = show
+-- | The class prompt types must be an instance of. In order to
+-- create a prompt you need to create a data type, without parameters,
+-- and make it an instance of this class, by implementing a simple
+-- method, 'showXPrompt', which will be used to print the string to be
+-- displayed in the command line window.
+--
+-- This is an example of a XPrompt instance definition:
+--
+-- > instance XPrompt Shell where
+-- > showXPrompt Shell = "Run: "
class XPrompt t where
showXPrompt :: t -> String
@@ -127,6 +138,17 @@ initState :: XPrompt p => Display -> Window -> Window -> Rectangle -> ComplFunct
initState d rw w s compl gc f pt h c =
XPS d rw w s Nothing Nothing compl gc f (XPT pt) "" 0 h c
+-- | Creates a prompt given:
+--
+-- * a prompt type, instance of the 'XPrompt' class.
+--
+-- * a prompt configuration ('defaultXPConfig' can be used as a
+-- starting point)
+--
+-- * a completion functions ('mkComplFunFromList' can be used to
+-- create a completions function given a list of possible completions)
+--
+-- * an action to be run: the action must take a string and return 'XMonad.X' ()
mkXPrompt :: XPrompt p => p -> XPConfig -> ComplFunction -> (String -> X ()) -> X ()
mkXPrompt t conf compl action = do
c <- ask
@@ -610,7 +632,8 @@ mkUnmanagedWindow d s rw x y w h = do
-- Utilities
--- completions
+-- | This function takes a list of possible completions and returns a
+-- completions function to be used with 'mkXPrompt'
mkComplFunFromList :: [String] -> String -> IO [String]
mkComplFunFromList _ [] = return []
mkComplFunFromList l s =