{-# LANGUAGE ScopedTypeVariables, TupleSections, GeneralizedNewtypeDeriving, TypeSynonymInstances, FlexibleInstances #-} ----------------------------------------------------------------------------- -- | -- Module : GridSelect.Extras -- Copyright : Clemens Fruhwirth , Max Magorsch -- License : BSD-style (see LICENSE) -- -- Maintainer : Max Magorsch -- Stability : unstable -- Portability : unportable -- -- GridSelect.Extras adds a method to [XMonad.Actions.GridSelect] -- (http://hackage.haskell.org/package/xmonad-contrib-0.15/docs/XMonad-Actions-GridSelect.html) -- that displays a message at the top of the screen while using the normal GridSelect. -- ----------------------------------------------------------------------------- module GridSelect.Extras ( -- * Usage -- $usage runSelectedActionWithMessageAndIcon , -- ** Screenshots -- $screenshots -- ** Customizing -- $customizing -- * Configuration GSConfig(..) , def , buildDefaultGSConfig , defaultNavigation ) where import Data.Maybe import Data.Bits import Data.Char import qualified Data.Foldable import Data.Ord ( comparing ) import Control.Applicative import Control.Monad.State import Control.Arrow import Data.List as L import qualified Data.Map as M import XMonad hiding ( liftX ) import XMonad.Util.Font import XMonad.Prompt ( mkUnmanagedWindow ) import XMonad.StackSet as W import XMonad.Layout.Decoration import XMonad.Util.Image import XMonad.Util.NamedWindows import XMonad.Util.XUtils import XMonad.Actions.WindowBringer ( bringWindow ) import Text.Printf import System.Random ( mkStdGen , genRange , next ) import Data.Word ( Word8 ) -- $usage -- -- You can use this module with the following in your @~\/.xmonad\/xmonad.hs@: -- -- > import qualified GridSelect.Extras -- -- Then add a keybinding, e.g. -- -- > , ((modm, xK_g), gridselect gsconfig message actions) -- > where -- > gridselect = GridSelect.Extras.runSelectedActionWithMessage -- > gsconfig = GridSelect.Extras.def -- > message = "Please choose an option:" -- > actions = [ ("Option #1", unsafeSpawn "notify-send 'Option #1'"), -- > ("Option #2", unsafeSpawn "notify-send 'Option #2'") ] -- -- -- This module also supports displaying an icon in the message window. To do so, just use 'runSelectedActionWithMessageAndIcon' like so: -- -- > , ((modm, xK_g), gridselect gsconfig message icon actions) -- > where -- > gridselect = GridSelect.Extras.runSelectedActionWithMessageAndIcon -- > icon = [[True, False, False], -- > [False, True, False], -- > [True, False, True ]] -- > -- ... -- -- -- $screenshots -- -- Selecting an action: -- -- <> -- -- -- -- $customizing -- -- It is possible to customize GridSelect.Extras the same way GridSelect is customized. Please refer to the [GridSelect Documentation](http://hackage.haskell.org/package/xmonad-contrib-0.15/docs/XMonad-Actions-GridSelect.html) for further information. -- | The 'Default' instance gives a basic configuration for 'gridselect', with -- the colorizer chosen based on the type. -- -- If you want to replace the 'gs_colorizer' field, use 'buildDefaultGSConfig' -- instead of 'def' to avoid ambiguous type variables. data GSConfig a = GSConfig { gs_cellheight :: Integer, gs_cellwidth :: Integer, gs_cellpadding :: Integer, gs_colorizer :: a -> Bool -> X (String, String), gs_font :: String, gs_navigate :: TwoD a (Maybe a), gs_rearranger :: Rearranger a, gs_originFractX :: Double, gs_originFractY :: Double, gs_bordercolor :: String } -- | That is 'fromClassName' if you are selecting a 'Window', or -- 'defaultColorizer' if you are selecting a 'String'. The catch-all instance -- @HasColorizer a@ uses the 'focusedBorderColor' and 'normalBorderColor' -- colors. class HasColorizer a where defaultColorizer :: a -> Bool -> X (String, String) instance {-# OVERLAPPING #-} HasColorizer Window where defaultColorizer = fromClassName instance {-# OVERLAPPING #-} HasColorizer String where defaultColorizer = stringColorizer instance {-# OVERLAPPING #-} HasColorizer a where defaultColorizer _ isFg = let getColor = if isFg then focusedBorderColor else normalBorderColor in asks $ (, "black") . getColor . config instance {-# OVERLAPPING #-} HasColorizer a => Default (GSConfig a) where def = buildDefaultGSConfig defaultColorizer {-# DEPRECATED defaultGSConfig "Use def (from Data.Default, and re-exported from XMonad.Actions.GridSelect) instead." #-} defaultGSConfig :: HasColorizer a => GSConfig a defaultGSConfig = def type TwoDPosition = (Integer, Integer) type TwoDElementMap a = [(TwoDPosition,(String,a))] data TwoDState a = TwoDState { td_curpos :: TwoDPosition , td_availSlots :: [TwoDPosition] , td_elements :: [(String,a)] , td_gsconfig :: GSConfig a , td_font :: XMonadFont , td_paneX :: Integer , td_paneY :: Integer , td_drawingWin :: Window , td_searchString :: String , td_elementmap :: TwoDElementMap a } generateElementmap :: TwoDState a -> X (TwoDElementMap a) generateElementmap s = do rearrangedElements <- rearranger searchString sortedElements return $ zip positions rearrangedElements where TwoDState { td_availSlots = positions, td_gsconfig = gsconfig, td_searchString = searchString } = s GSConfig { gs_rearranger = rearranger } = gsconfig -- Filter out any elements that don't contain the searchString (case insensitive) filteredElements = L.filter ((searchString `isInfixOfI`) . fst) (td_elements s) -- Sorts the elementmap sortedElements = orderElementmap searchString filteredElements -- Case Insensitive version of isInfixOf needle `isInfixOfI` haystack = upper needle `isInfixOf` upper haystack upper = map toUpper -- | We enforce an ordering such that we will always get the same result. If the -- elements position changes from call to call of gridselect, then the shown -- positions will also change when you search for the same string. This is -- especially the case when using gridselect for showing and switching between -- workspaces, as workspaces are usually shown in order of last visited. The -- chosen ordering is "how deep in the haystack the needle is" (number of -- characters from the beginning of the string and the needle). orderElementmap :: String -> [(String, a)] -> [(String, a)] orderElementmap searchString elements = if not $ null searchString then sortedElements else elements where upper = map toUpper -- Calculates a (score, element) tuple where the score is the depth of the (case insensitive) needle. calcScore element = ( length $ takeWhile (not . isPrefixOf (upper searchString)) (tails . upper . fst $ element) , element ) -- Use the score and then the string as the parameters for comparing, making -- it consistent even when two strings that score the same, as it will then be -- sorted by the strings, making it consistent. compareScore = comparing (\(score, (str, _)) -> (score, str)) sortedElements = map snd . sortBy compareScore $ map calcScore elements newtype TwoD a b = TwoD { unTwoD :: StateT (TwoDState a) X b } deriving (Monad,Functor,MonadState (TwoDState a)) instance Applicative (TwoD a) where (<*>) = ap pure = return liftX :: X a1 -> TwoD a a1 liftX = TwoD . lift evalTwoD :: TwoD a1 a -> TwoDState a1 -> X a evalTwoD m s = flip evalStateT s $ unTwoD m diamondLayer :: (Enum a, Num a, Eq a) => a -> [(a, a)] diamondLayer 0 = [(0, 0)] diamondLayer n = -- tr = top right -- r = ur ++ 90 degree clock-wise rotation of ur let tr = [ (x, n - x) | x <- [0 .. n - 1] ] r = tr ++ map (\(x, y) -> (y, -x)) tr in r ++ map (negate *** negate) r diamond :: (Enum a, Num a, Eq a) => [(a, a)] diamond = concatMap diamondLayer [0 ..] diamondRestrict :: Integer -> Integer -> Integer -> Integer -> [(Integer, Integer)] diamondRestrict x y originX originY = L.filter (\(x', y') -> abs x' <= x && abs y' <= y) . map (\(x', y') -> (x' + fromInteger originX, y' + fromInteger originY)) . take 1000 $ diamond findInElementMap :: (Eq a) => a -> [(a, b)] -> Maybe (a, b) findInElementMap pos = find ((== pos) . fst) drawWinBox :: Window -> XMonadFont -> (String, String) -> String -> Integer -> Integer -> String -> Integer -> Integer -> Integer -> X () drawWinBox win font (fg, bg) bc ch cw text x y cp = withDisplay $ \dpy -> do gc <- liftIO $ createGC dpy win bordergc <- liftIO $ createGC dpy win liftIO $ do Just fgcolor <- initColor dpy fg Just bgcolor <- initColor dpy bg Just bordercolor <- initColor dpy bc setForeground dpy gc fgcolor setBackground dpy gc bgcolor setForeground dpy bordergc bordercolor fillRectangle dpy win gc (fromInteger x) (fromInteger y) (fromInteger cw) (fromInteger ch) drawRectangle dpy win bordergc (fromInteger x) (fromInteger y) (fromInteger cw) (fromInteger ch) stext <- shrinkWhile (shrinkIt shrinkText) (\n -> do size <- liftIO $ textWidthXMF dpy font n return $ size > fromInteger (cw - (2 * cp)) ) text -- calculate the offset to vertically centre the text based on the ascender and descender (asc, desc) <- liftIO $ textExtentsXMF font stext let offset = ((ch - fromIntegral (asc + desc)) `div` 2) + fromIntegral asc printStringXMF dpy win font gc bg fg (fromInteger (x + cp)) (fromInteger (y + offset)) stext liftIO $ freeGC dpy gc liftIO $ freeGC dpy bordergc updateAllElements :: TwoD a () updateAllElements = do s <- get updateElements (td_elementmap s) grayoutElements :: Int -> TwoD a () grayoutElements skip = do s <- get updateElementsWithColorizer grayOnly $ drop skip (td_elementmap s) where grayOnly _ _ = return ("#808080", "#808080") updateElements :: TwoDElementMap a -> TwoD a () updateElements elementmap = do s <- get updateElementsWithColorizer (gs_colorizer (td_gsconfig s)) elementmap updateElementsWithColorizer :: (a -> Bool -> X (String, String)) -> TwoDElementMap a -> TwoD a () updateElementsWithColorizer colorizer elementmap = do TwoDState { td_curpos = curpos, td_drawingWin = win, td_gsconfig = gsconfig, td_font = font, td_paneX = paneX, td_paneY = paneY } <- get let cellwidth = gs_cellwidth gsconfig cellheight = gs_cellheight gsconfig paneX' = div (paneX - cellwidth) 2 paneY' = div (paneY - cellheight) 2 updateElement (pos@(x, y), (text, element)) = liftX $ do colors <- colorizer element (pos == curpos) drawWinBox win font colors (gs_bordercolor gsconfig) cellheight cellwidth text (paneX' + x * cellwidth) (paneY' + y * cellheight) (gs_cellpadding gsconfig) mapM_ updateElement elementmap stdHandle :: Event -> TwoD a (Maybe a) -> TwoD a (Maybe a) stdHandle ButtonEvent { ev_event_type = t, ev_x = x, ev_y = y } contEventloop | t == buttonRelease = do s@TwoDState { td_paneX = px, td_paneY = py, td_gsconfig = (GSConfig ch cw _ _ _ _ _ _ _ _) } <- get let gridX = (fi x - (px - cw) `div` 2) `div` cw gridY = (fi y - (py - ch) `div` 2) `div` ch case lookup (gridX, gridY) (td_elementmap s) of Just (_, el) -> return (Just el) Nothing -> contEventloop | otherwise = contEventloop stdHandle ExposeEvent{} contEventloop = updateAllElements2 >> contEventloop stdHandle _ contEventloop = contEventloop -- | Embeds a key handler into the X event handler that dispatches key -- events to the key handler, while non-key event go to the standard -- handler. makeXEventhandler :: ((KeySym, String, KeyMask) -> TwoD a (Maybe a)) -> TwoD a (Maybe a) makeXEventhandler keyhandler = fix $ \me -> join $ liftX $ withDisplay $ \d -> liftIO $ allocaXEvent $ \e -> do maskEvent d (exposureMask .|. keyPressMask .|. buttonReleaseMask) e ev <- getEvent e if ev_event_type ev == keyPress then do (ks, s) <- lookupString $ asKeyEvent e return $ do mask <- liftX $ cleanMask (ev_state ev) keyhandler (fromMaybe xK_VoidSymbol ks, s, mask) else return $ stdHandle ev me -- | When the map contains (KeySym,KeyMask) tuple for the given event, -- the associated action in the map associated shadows the default key -- handler shadowWithKeymap :: M.Map (KeyMask, KeySym) a -> ((KeySym, String, KeyMask) -> a) -> (KeySym, String, KeyMask) -> a shadowWithKeymap keymap dflt keyEvent@(ks, _, m') = fromMaybe (dflt keyEvent) (M.lookup (m', ks) keymap) -- Helper functions to use for key handler functions -- | Closes gridselect returning the element under the cursor select :: TwoD a (Maybe a) select = do s <- get return $ snd . snd <$> findInElementMap (td_curpos s) (td_elementmap s) -- | Closes gridselect returning no element. cancel :: TwoD a (Maybe a) cancel = return Nothing -- | Sets the absolute position of the cursor. setPos :: (Integer, Integer) -> TwoD a () setPos newPos = do s <- get let elmap = td_elementmap s newSelectedEl = findInElementMap newPos (td_elementmap s) oldPos = td_curpos s when (isJust newSelectedEl && newPos /= oldPos) $ do put s { td_curpos = newPos } updateElements2 (catMaybes [findInElementMap oldPos elmap, newSelectedEl]) -- | Moves the cursor by the offsets specified move :: (Integer, Integer) -> TwoD a () move (dx, dy) = do s <- get let (x, y) = td_curpos s newPos = (x + dx, y + dy) setPos newPos moveNext :: TwoD a () moveNext = do position <- gets td_curpos elems <- gets td_elementmap let n = length elems m = case findIndex (\p -> fst p == position) elems of Nothing -> Nothing Just k | k == n - 1 -> Just 0 | otherwise -> Just (k + 1) whenJust m $ \i -> setPos (fst $ elems !! i) movePrev :: TwoD a () movePrev = do position <- gets td_curpos elems <- gets td_elementmap let n = length elems m = case findIndex (\p -> fst p == position) elems of Nothing -> Nothing Just 0 -> Just (n - 1) Just k -> Just (k - 1) whenJust m $ \i -> setPos (fst $ elems !! i) -- | Apply a transformation function the current search string transformSearchString :: (String -> String) -> TwoD a () transformSearchString f = do s <- get let oldSearchString = td_searchString s newSearchString = f oldSearchString when (newSearchString /= oldSearchString) $ do -- FIXME curpos might end up outside new bounds let s' = s { td_searchString = newSearchString } m <- liftX $ generateElementmap s' let s'' = s' { td_elementmap = m } oldLen = length $ td_elementmap s newLen = length $ td_elementmap s'' -- All the elements in the previous element map should be -- grayed out, except for those which will be covered by -- elements in the new element map. when (newLen < oldLen) $ grayoutElements newLen put s'' updateAllElements -- | By default gridselect used the defaultNavigation action, which -- binds left,right,up,down and vi-style h,l,j,k navigation. Return -- quits gridselect, returning the selected element, while Escape -- cancels the selection. Slash enters the substring search mode. In -- substring search mode, every string-associated keystroke is -- added to a search string, which narrows down the object -- selection. Substring search mode comes back to regular navigation -- via Return, while Escape cancels the search. If you want that -- navigation style, add 'defaultNavigation' as 'gs_navigate' to your -- 'GSConfig' object. This is done by 'buildDefaultGSConfig' automatically. defaultNavigation :: TwoD a (Maybe a) defaultNavigation = makeXEventhandler $ shadowWithKeymap navKeyMap navDefaultHandler where navKeyMap = M.fromList [ ((0, xK_Escape) , cancel) , ((0, xK_Return) , select) , ((0, xK_slash) , substringSearch defaultNavigation) , ((0, xK_Left) , move (-1, 0) >> defaultNavigation) , ((0, xK_h) , move (-1, 0) >> defaultNavigation) , ((0, xK_Right) , move (1, 0) >> defaultNavigation) , ((0, xK_l) , move (1, 0) >> defaultNavigation) , ((0, xK_Down) , move (0, 1) >> defaultNavigation) , ((0, xK_j) , move (0, 1) >> defaultNavigation) , ((0, xK_Up) , move (0, -1) >> defaultNavigation) , ((0, xK_k) , move (0, -1) >> defaultNavigation) , ((0, xK_Tab) , moveNext >> defaultNavigation) , ((0, xK_n) , moveNext >> defaultNavigation) , ((shiftMask, xK_Tab), movePrev >> defaultNavigation) , ((0, xK_p) , movePrev >> defaultNavigation) ] -- The navigation handler ignores unknown key symbols, therefore we const navDefaultHandler = const defaultNavigation -- | This navigation style combines navigation and search into one mode at the cost of losing vi style -- navigation. With this style, there is no substring search submode, -- but every typed character is added to the substring search. navNSearch :: TwoD a (Maybe a) navNSearch = makeXEventhandler $ shadowWithKeymap navNSearchKeyMap navNSearchDefaultHandler where navNSearchKeyMap = M.fromList [ ((0, xK_Escape) , cancel) , ((0, xK_Return) , select) , ((0, xK_Left) , move (-1, 0) >> navNSearch) , ((0, xK_Right) , move (1, 0) >> navNSearch) , ((0, xK_Down) , move (0, 1) >> navNSearch) , ((0, xK_Up) , move (0, -1) >> navNSearch) , ((0, xK_Tab) , moveNext >> navNSearch) , ((shiftMask, xK_Tab), movePrev >> navNSearch) , ( (0, xK_BackSpace) , transformSearchString (\s -> if s == "" then "" else init s) >> navNSearch ) ] -- The navigation handler ignores unknown key symbols, therefore we const navNSearchDefaultHandler (_, s, _) = do transformSearchString (++ s) navNSearch -- | Navigation submode used for substring search. It returns to the -- first argument navigation style when the user hits Return. substringSearch :: TwoD a (Maybe a) -> TwoD a (Maybe a) substringSearch returnNavigation = fix $ \me -> let searchKeyMap = M.fromList [ ((0, xK_Escape), transformSearchString (const "") >> returnNavigation) , ((0, xK_Return), returnNavigation) , ( (0, xK_BackSpace) , transformSearchString (\s -> if s == "" then "" else init s) >> me ) ] searchDefaultHandler (_, s, _) = do transformSearchString (++ s) me in makeXEventhandler $ shadowWithKeymap searchKeyMap searchDefaultHandler -- FIXME probably move that into Utils? -- Conversion scheme as in http://en.wikipedia.org/wiki/HSV_color_space hsv2rgb :: Fractional a => (Integer, a, a) -> (a, a, a) hsv2rgb (h, s, v) = let hi = div h 60 `mod` 6 :: Integer f = ((fromInteger h / 60) - fromInteger hi) :: Fractional a => a q = v * (1 - f) p = v * (1 - s) t = v * (1 - (1 - f) * s) in case hi of 0 -> (v, t, p) 1 -> (q, v, p) 2 -> (p, v, t) 3 -> (p, q, v) 4 -> (t, p, v) 5 -> (v, p, q) _ -> error "The world is ending. x mod a >= a." -- | Default colorizer for Strings stringColorizer :: String -> Bool -> X (String, String) stringColorizer s active = let seed x = toInteger (sum $ map ((* x) . fromEnum) s) :: Integer (r, g, b) = hsv2rgb ( seed 83 `mod` 360 , fromInteger (seed 191 `mod` 1000) / 2500 + 0.4 , fromInteger (seed 121 `mod` 1000) / 2500 + 0.4 ) in if active then return ("#faff69", "black") else return ( "#" ++ concatMap (twodigitHex . (round :: Double -> Word8) . (* 256)) [r, g, b] , "white" ) -- | Colorize a window depending on it's className. fromClassName :: Window -> Bool -> X (String, String) fromClassName w active = runQuery className w >>= flip defaultColorizer active twodigitHex :: Word8 -> String twodigitHex = printf "%02x" -- | A colorizer that picks a color inside a range, -- and depending on the window's class. colorRangeFromClassName :: (Word8, Word8, Word8) -- ^ Beginning of the color range -> (Word8, Word8, Word8) -- ^ End of the color range -> (Word8, Word8, Word8) -- ^ Background of the active window -> (Word8, Word8, Word8) -- ^ Inactive text color -> (Word8, Word8, Word8) -- ^ Active text color -> Window -> Bool -> X (String, String) colorRangeFromClassName startC endC activeC inactiveT activeT w active = do classname <- runQuery className w if active then return (rgbToHex activeC, rgbToHex activeT) else return (rgbToHex $ mix startC endC $ stringToRatio classname, rgbToHex inactiveT) where rgbToHex :: (Word8, Word8, Word8) -> String rgbToHex (r, g, b) = '#' : twodigitHex r ++ twodigitHex g ++ twodigitHex b -- | Creates a mix of two colors according to a ratio -- (1 -> first color, 0 -> second color). mix :: (Word8, Word8, Word8) -> (Word8, Word8, Word8) -> Double -> (Word8, Word8, Word8) mix (r1, g1, b1) (r2, g2, b2) r = (mix' r1 r2, mix' g1 g2, mix' b1 b2) where mix' a b = truncate $ (fi a * r) + (fi b * (1 - r)) -- | Generates a Double from a string, trying to -- achieve a random distribution. -- We create a random seed from the sum of all characters -- in the string, and use it to generate a ratio between 0 and 1 stringToRatio :: String -> Double stringToRatio "" = 0 stringToRatio s = let gen = mkStdGen $ sum $ map fromEnum s range = (\(a, b) -> b - a) $ genRange gen randomInt = foldr1 combine $ replicate 20 next combine f1 f2 g = let (_, g') = f1 g in f2 g' in fi (fst $ randomInt gen) / fi range -- | Brings up a 2D grid of elements in the center of the screen, and one can -- select an element with cursors keys. The selected element is returned. gridselect :: GSConfig a -> [(String, a)] -> X (Maybe a) gridselect _ [] = return Nothing gridselect gsconfig elements = withDisplay $ \dpy -> do rootw <- asks theRoot scr <- gets $ screenRect . W.screenDetail . W.current . windowset win <- liftIO $ mkUnmanagedWindow dpy (defaultScreenOfDisplay dpy) rootw (rect_x scr) (rect_y scr) (rect_width scr) (rect_height scr) liftIO $ mapWindow dpy win liftIO $ selectInput dpy win (exposureMask .|. keyPressMask .|. buttonReleaseMask) status <- io $ grabKeyboard dpy win True grabModeAsync grabModeAsync currentTime io $ grabPointer dpy win True buttonReleaseMask grabModeAsync grabModeAsync none none currentTime font <- initXMF (gs_font gsconfig) let screenWidth = toInteger $ rect_width scr screenHeight = toInteger $ rect_height scr selectedElement <- if status == grabSuccess then do let restriction ss cs = (fromInteger ss / fromInteger (cs gsconfig) - 1) / 2 :: Double restrictX = floor $ restriction screenWidth gs_cellwidth restrictY = floor $ restriction screenHeight gs_cellheight originPosX = floor $ (gs_originFractX gsconfig - (1 / 2)) * 2 * fromIntegral restrictX originPosY = floor $ (gs_originFractY gsconfig - (1 / 2)) * 2 * fromIntegral restrictY coords = diamondRestrict restrictX restrictY originPosX originPosY s = TwoDState { td_curpos = head coords , td_availSlots = coords , td_elements = elements , td_gsconfig = gsconfig , td_font = font , td_paneX = screenWidth , td_paneY = screenHeight , td_drawingWin = win , td_searchString = "" , td_elementmap = [] } m <- generateElementmap s evalTwoD (updateAllElements >> gs_navigate gsconfig) (s { td_elementmap = m }) else return Nothing liftIO $ do unmapWindow dpy win destroyWindow dpy win ungrabPointer dpy currentTime sync dpy False releaseXMF font return selectedElement -- | Like `gridSelect' but with the current windows and their titles as elements gridselectWindow :: GSConfig Window -> X (Maybe Window) gridselectWindow gsconf = windowMap >>= gridselect gsconf -- | Brings up a 2D grid of windows in the center of the screen, and one can -- select a window with cursors keys. The selected window is then passed to -- a callback function. withSelectedWindow :: (Window -> X ()) -> GSConfig Window -> X () withSelectedWindow callback conf = do mbWindow <- gridselectWindow conf Data.Foldable.forM_ mbWindow callback -- case mbWindow of -- Just w -> callback w -- Nothing -> return () windowMap :: X [(String, Window)] windowMap = do ws <- gets windowset mapM keyValuePair (W.allWindows ws) where keyValuePair w = (, w) `fmap` decorateName' w decorateName' :: Window -> X String decorateName' w = show <$> getName w -- | Builds a default gs config from a colorizer function. buildDefaultGSConfig :: (a -> Bool -> X (String, String)) -> GSConfig a buildDefaultGSConfig col = GSConfig 50 130 10 col "xft:Sans-8" defaultNavigation noRearranger (1 / 2) (1 / 2) "white" -- | Brings selected window to the current workspace. bringSelected :: GSConfig Window -> X () bringSelected = withSelectedWindow $ \w -> do windows (bringWindow w) XMonad.focus w windows W.shiftMaster -- | Switches to selected window's workspace and focuses that window. goToSelected :: GSConfig Window -> X () goToSelected = withSelectedWindow $ windows . W.focusWindow -- | Select an application to spawn from a given list spawnSelected :: GSConfig String -> [String] -> X () spawnSelected conf lst = gridselect conf (zip lst lst) >>= flip whenJust spawn -- | Select an action and run it in the X monad runSelectedAction :: GSConfig (X ()) -> [(String, X ())] -> X () runSelectedAction conf actions = do selectedActionM <- gridselect conf actions fromMaybe (return ()) selectedActionM -- case selectedActionM of -- Just selectedAction -> selectedAction -- Nothing -> return () -- | Select a workspace and view it using the given function -- (normally 'W.view' or 'W.greedyView') -- -- Another option is to shift the current window to the selected workspace: -- -- > gridselectWorkspace (\ws -> W.greedyView ws . W.shift ws) gridselectWorkspace :: GSConfig WorkspaceId -> (WorkspaceId -> WindowSet -> WindowSet) -> X () gridselectWorkspace conf viewFunc = gridselectWorkspace' conf (windows . viewFunc) -- | Select a workspace and run an arbitrary action on it. gridselectWorkspace' :: GSConfig WorkspaceId -> (WorkspaceId -> X ()) -> X () gridselectWorkspace' conf func = withWindowSet $ \ws -> do let wss = map W.tag $ W.hidden ws ++ map W.workspace (W.current ws : W.visible ws) gridselect conf (zip wss wss) >>= flip whenJust func -- $rearrangers -- -- Rearrangers allow for arbitrary post-filter rearranging of the grid -- elements. -- -- For example, to be able to switch to a new dynamic workspace by typing -- in its name, you can use the following keybinding action: -- -- > import XMonad.Actions.DynamicWorkspaces (addWorkspace) -- > -- > gridselectWorkspace' defaultGSConfig -- > { gs_navigate = navNSearch -- > , gs_rearranger = searchStringRearrangerGenerator id -- > } -- > addWorkspace -- | A function taking the search string and a list of elements, and -- returning a potentially rearranged list of elements. type Rearranger a = String -> [(String, a)] -> X [(String, a)] -- | A rearranger that leaves the elements unmodified. noRearranger :: Rearranger a noRearranger _ = return -- | A generator for rearrangers that append a single element based on the -- search string, if doing so would not be redundant (empty string or value -- already present). searchStringRearrangerGenerator :: (String -> a) -> Rearranger a searchStringRearrangerGenerator f = let r "" xs = return xs r s xs | s `elem` map fst xs = return xs | otherwise = return $ xs ++ [(s, f s)] in r ---------------------------------------------------------------------------------------------- -- custom part -- ---------------------------------------------------------------------------------------------- -- | A custom colorizer that colors depending on the title of the grid column myCustomColorizer :: String -> a -> Bool -> X (String, String) myCustomColorizer text _ p | p = pure ("#f44336", "#1a1a1a") | otherwise = if "MIT" `isInfixOf` text then pure ("#4caf50", "#1a1a1a") else if "BIG" `isInfixOf` text then pure ("#2196f3", "#1a1a1a") else pure ("#1a1a1a", "gray") -- | Select an action and run it in the X monad. Furthermore display a message on top of the screen. runSelectedActionWithMessageAndIcon :: GSConfig (X ()) -> String -> [[Bool]] -> [(String, X ())] -> X () runSelectedActionWithMessageAndIcon conf message icon actions = do selectedActionM <- gridselectWithMessageAndIcon conf message icon actions fromMaybe (return ()) selectedActionM -- case selectedActionM of -- Just selectedAction -> selectedAction -- Nothing -> return () -- | Brings up a 2D grid of elements in the center of the screen, and one can -- select an element with cursors keys. The selected element is returned. gridselectWithMessageAndIcon :: GSConfig a -> String -> [[Bool]] -> [(String, a)] -> X (Maybe a) gridselectWithMessageAndIcon _ _ _ [] = return Nothing gridselectWithMessageAndIcon gsconfig message icon elements = withDisplay $ \dpy -> do rootw <- asks theRoot scr <- gets $ screenRect . W.screenDetail . W.current . windowset win <- liftIO $ mkUnmanagedWindow dpy (defaultScreenOfDisplay dpy) rootw (rect_x scr) (rect_y scr) (rect_width scr) (rect_height scr) liftIO $ mapWindow dpy win message_win <- createNewWindow (Rectangle 450 50 1000 60) Nothing "" True liftIO $ mapWindow dpy message_win fs <- initXMF "xft:Inconsolata:size=14" paintTextAndIcons message_win fs 1000 60 1 "#1a1a1a" "gray" "gray" "#1a1a1a" [AlignCenter] [message] [CenterLeft 10] [icon] liftIO $ selectInput dpy win (exposureMask .|. keyPressMask .|. buttonReleaseMask) status <- io $ grabKeyboard dpy win True grabModeAsync grabModeAsync currentTime io $ grabPointer dpy win True buttonReleaseMask grabModeAsync grabModeAsync none none currentTime font <- initXMF (gs_font gsconfig) let screenWidth = toInteger $ rect_width scr screenHeight = toInteger $ rect_height scr selectedElement <- if status == grabSuccess then do let restriction ss cs = (fromInteger ss / fromInteger (cs gsconfig) - 1) / 2 :: Double restrictX = floor $ restriction screenWidth gs_cellwidth restrictY = floor $ restriction screenHeight gs_cellheight originPosX = floor $ (gs_originFractX gsconfig - (1 / 2)) * 2 * fromIntegral restrictX originPosY = floor $ (gs_originFractY gsconfig - (1 / 2)) * 2 * fromIntegral restrictY coords = diamondRestrict restrictX restrictY originPosX originPosY s = TwoDState { td_curpos = head coords , td_availSlots = coords , td_elements = elements , td_gsconfig = gsconfig , td_font = font , td_paneX = screenWidth , td_paneY = screenHeight , td_drawingWin = win , td_searchString = "" , td_elementmap = [] } m <- generateElementmap s evalTwoD (updateAllElements2 >> gs_navigate gsconfig) (s { td_elementmap = m }) else return Nothing liftIO $ do -- unmapWindow dpy message_win destroyWindow dpy message_win unmapWindow dpy win destroyWindow dpy win ungrabPointer dpy currentTime sync dpy False releaseXMF font return selectedElement updateAllElements2 :: TwoD a () updateAllElements2 = do s <- get updateElements2 (td_elementmap s) updateElements2 :: TwoDElementMap a -> TwoD a () updateElements2 elementmap = do s <- get updateElementsWithColorizer2 myCustomColorizer elementmap updateElementsWithColorizer2 :: (String -> a -> Bool -> X (String, String)) -> TwoDElementMap a -> TwoD a () updateElementsWithColorizer2 colorizer elementmap = do TwoDState { td_curpos = curpos, td_drawingWin = win, td_gsconfig = gsconfig, td_font = font, td_paneX = paneX, td_paneY = paneY } <- get let cellwidth = gs_cellwidth gsconfig cellheight = gs_cellheight gsconfig paneX' = div (paneX - cellwidth) 2 paneY' = div (paneY - cellheight) 2 updateElement (pos@(x, y), (text, element)) = liftX $ do -- colors <- colorizer element (pos == curpos) colors <- colorizer text element (pos == curpos) drawWinBox win font colors (gs_bordercolor gsconfig) cellheight cellwidth text (paneX' + x * cellwidth) (paneY' + y * cellheight) (gs_cellpadding gsconfig) mapM_ updateElement elementmap