add ConfirmPrompt (Antoine Beaupré)

XMonad/Prompt/ConfirmPrompt.hs

@@ -0,0 +1,51 @@
+-----------------------------------------------------------------------------
+-- |
+-- Module      :  XMonad.Prompt.ConfirmPrompt
+-- Copyright   :  (C) 2015 Antoine Beaupré
+-- License     :  BSD3
+--
+-- Maintainer  :  Antoine Beaupré <anarcat@debian.org>
+-- Stability   :  unstable
+-- Portability :  unportable
+--
+-- A module for setting up simple confirmation prompts for keybindings.
+--
+-----------------------------------------------------------------------------
+module XMonad.Prompt.ConfirmPrompt (confirmPrompt
+                                    -- * Usage
+                                    -- $usage
+                                    , module XMonad.Prompt
+                                    -- * Use case: confirming exit
+                                    -- $tip
+                                    , EnterPrompt
+                                    ) where
+
+import XMonad (X)
+import XMonad.Prompt (XPConfig, XPrompt, showXPrompt, mkXPrompt, mkComplFunFromList)
+
+{- $usage
+
+This module makes it easy to add a confirmation prompt for specific
+actions. Instead of just running the action, a simple confirmation
+prompt will be created using 'XMonad.Prompt' primitives. The action
+will then run normally if the user confirms.
+-}
+
+{- $tip
+This should be used something like this:
+
+> ...
+> , ((modm , xK_l), confirmPrompt defaultXPConfig "exit" $ io (exitWith ExitSuccess))
+> ...
+-}
+
+{- | Customized 'XPrompt' prompt that will ask to confirm the given string -}
+data EnterPrompt = EnterPrompt String
+instance XPrompt EnterPrompt where
+    showXPrompt (EnterPrompt n) = "Confirm " ++ n ++ " (esc/ENTER)"
+
+{- | Prompt the user to confirm a given action. We offer no completion
+     and simply ask to confirm (ENTER) or cancel (ESCAPE). The actual key
+     handling is done by mkXPrompt.-}
+confirmPrompt :: XPConfig -> String -> X() -> X()
+confirmPrompt config app func = mkXPrompt (EnterPrompt app) config (mkComplFunFromList []) $ const func

xmonad-contrib.cabal

@@ -277,6 +277,7 @@ library
                         XMonad.Prompt
                         XMonad.Prompt.AppendFile
                         XMonad.Prompt.AppLauncher
+                        XMonad.Prompt.ConfirmPrompt
                         XMonad.Prompt.Directory
                         XMonad.Prompt.DirExec
                         XMonad.Prompt.Email