xmonad-contrib/XMonad/Actions/WindowMenu.hs
slotThe b6a8069e44 Prefer safe alternatives to getWindowAttributes
Whenever possible, prefer the safe wrappers withWindowAttributes or
safeGetWindowAttributes to getWindowAttributes.

Places where these are not applicable are limited to layouts, where
there is not good "default value" to give back in case these calls fail.
In these cases, we let the exception handling of the layout mechanism
handle it and fall back to the Full layout.

Fixes: https://github.com/xmonad/xmonad-contrib/issues/146
2021-11-13 21:26:02 +01:00

79 lines
2.8 KiB
Haskell

----------------------------------------------------------------------------
-- |
-- Module : XMonad.Actions.WindowMenu
-- Description : Display window management actions in the center of the focused window.
-- Copyright : (c) Jan Vornberger 2009
-- License : BSD3-style (see LICENSE)
--
-- Maintainer : jan.vornberger@informatik.uni-oldenburg.de
-- Stability : unstable
-- Portability : not portable
--
-- Uses "XMonad.Actions.GridSelect" to display a number of actions related to
-- window management in the center of the focused window. Actions include: Closing,
-- maximizing, minimizing and shifting the window to another workspace.
--
-- Note: For maximizing and minimizing to actually work, you will need
-- to integrate "XMonad.Layout.Maximize" and "XMonad.Layout.Minimize" into your
-- setup. See the documentation of those modules for more information.
--
-----------------------------------------------------------------------------
module XMonad.Actions.WindowMenu (
-- * Usage
-- $usage
windowMenu
) where
import XMonad
import qualified XMonad.StackSet as W
import XMonad.Actions.GridSelect
import XMonad.Layout.Maximize
import XMonad.Actions.Minimize
import XMonad.Prelude (fi)
-- $usage
--
-- You can use this module with the following in your @~\/.xmonad\/xmonad.hs@:
--
-- > import XMonad.Actions.WindowMenu
--
-- Then add a keybinding, e.g.
--
-- > , ((modm, xK_o ), windowMenu)
colorizer :: a -> Bool -> X (String, String)
colorizer _ isFg = do
fBC <- asks (focusedBorderColor . config)
nBC <- asks (normalBorderColor . config)
return $ if isFg
then (fBC, nBC)
else (nBC, fBC)
windowMenu :: X ()
windowMenu = withFocused $ \w -> withDisplay $ \d -> withWindowAttributes d w $ \wa -> do
tags <- asks (workspaces . config)
let Rectangle x y wh ht = getSize wa
Rectangle sx sy swh sht <- gets $ screenRect . W.screenDetail . W.current . windowset
let originFractX = (fi x - fi sx + fi wh / 2) / fi swh
originFractY = (fi y - fi sy + fi ht / 2) / fi sht
gsConfig = (buildDefaultGSConfig colorizer)
{ gs_originFractX = originFractX
, gs_originFractY = originFractY }
actions = [ ("Cancel menu", return ())
, ("Close" , kill)
, ("Maximize" , sendMessage $ maximizeRestore w)
, ("Minimize" , minimizeWindow w)
] ++
[ ("Move to " ++ tag, windows $ W.shift tag)
| tag <- tags ]
runSelectedAction gsConfig actions
getSize :: WindowAttributes -> Rectangle
getSize wa =
let x = fi $ wa_x wa
y = fi $ wa_y wa
wh = fi $ wa_width wa
ht = fi $ wa_height wa
in Rectangle x y wh ht