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|
-----------------------------------------------------------------------------
-- |
-- Module : XMonad.Util.WindowProperties
-- Copyright : (c) Roman Cheplyaka
-- License : BSD-style (see LICENSE)
--
-- Maintainer : Roman Cheplyaka <roma@ro-che.info>
-- Stability : unstable
-- Portability : unportable
--
-- EDSL for specifying window properties, such as title, classname or resource.
--
-----------------------------------------------------------------------------
module XMonad.Util.WindowProperties (
-- * Usage
-- $usage
Property(..), hasProperty, focusedHasProperty, allWithProperty,
propertyToQuery)
where
import XMonad
import qualified XMonad.StackSet as W
import Control.Monad
-- $usage
-- This module allows to specify window properties, such as title, classname or
-- resource, and to check them.
--
-- In contrast to ManageHook properties, these are instances of Show and Read,
-- so they can be used in layout definitions etc. For example usage see "XMonad.Layout.IM"
-- | Most of the property constructors are quite self-explaining.
data Property = Title String
| ClassName String
| Resource String
| Role String -- ^ WM_WINDOW_ROLE property
| And Property Property
| Or Property Property
| Not Property
| Const Bool
deriving (Read, Show)
infixr 9 `And`
infixr 8 `Or`
-- | Does given window have this property?
hasProperty :: Property -> Window -> X Bool
hasProperty (Title s) w = withDisplay $ \d -> fmap (Just s ==) $ io $ fetchName d w
hasProperty (Resource s) w = withDisplay $ \d -> fmap ((==) s . resName ) $ io $ getClassHint d w
hasProperty (ClassName s) w = withDisplay $ \d -> fmap ((==) s . resClass) $ io $ getClassHint d w
hasProperty (Role s) w = withDisplay $ \d -> fmap ((==) (Just s)) $ getStringProperty d w "WM_WINDOW_ROLE"
hasProperty (And p1 p2) w = do { r1 <- hasProperty p1 w; r2 <- hasProperty p2 w; return $ r1 && r2 }
hasProperty (Or p1 p2) w = do { r1 <- hasProperty p1 w; r2 <- hasProperty p2 w; return $ r1 || r2 }
hasProperty (Not p1) w = do { r1 <- hasProperty p1 w; return $ not r1 }
hasProperty (Const b) _ = return b
-- | Does the focused window have this property?
focusedHasProperty :: Property -> X Bool
focusedHasProperty p = do
ws <- gets windowset
let ms = W.stack $ W.workspace $ W.current ws
case ms of
Just s -> hasProperty p $ W.focus s
Nothing -> return False
-- | Find all existing windows with specified property
allWithProperty :: Property -> X [Window]
allWithProperty prop = withDisplay $ \dpy -> do
rootw <- asks theRoot
(_,_,wins) <- io $ queryTree dpy rootw
hasProperty prop `filterM` wins
-- | Convert property to 'Query' 'Bool' (see "XMonad.ManageHook")
propertyToQuery :: Property -> Query Bool
propertyToQuery (Title s) = title =? s
propertyToQuery (Resource s) = resource =? s
propertyToQuery (ClassName s) = className =? s
propertyToQuery (Role s) = stringProperty "WM_WINDOW_ROLE" =? s
propertyToQuery (And p1 p2) = propertyToQuery p1 <&&> propertyToQuery p2
propertyToQuery (Or p1 p2) = propertyToQuery p1 <||> propertyToQuery p2
propertyToQuery (Not p) = not `fmap` propertyToQuery p
propertyToQuery (Const b) = return b
|
