Re: [xmonad] Hide border when switching to full screen

You don't handle app-initiated fullscreen mode. There's a rework of EwmhDesktops somewhere that would let you register a handler for `_NET_WM_STATE_FULLSCREEN` to toggle the border, but no ETA for it to land, so you would have to use `handleEventHook` to watch for the `_NET_WM_STATE` event being sent to the root window, extract the target window from it, check that the requested state flag is `_NET_WM_STATE_FULLSCREEN`, and set or toggle the border appropriately. See https://specifications.freedesktop.org/wm-spec/wm-spec-1.3.html#idm462011428... at "To change the state of a mapped window". On Sat, Jan 13, 2024 at 9:10 AM Eyal Erez wrote:

Hi,

Currently, if a window goes into full screen mode (e.g., if I hit "f" while watching a youtube video in Chrome), I would like it to take up the entire screen and also remove the window border. I have tried doing this with the code snippets I've included below (full xmonad.hs https://pastebin.com/uDqdETiF). However this only works partially. The window resizes to take up the entire screen, including toggling struts. However, the border does not toggle off. Is there anything I can do differently? Thank you.

-- Define a function which toggles borders and also does full float doFullFloatNoBorders :: ManageHook doFullFloatNoBorders = do liftX $ withFocused toggleBorder doFullFloat

myManageHook :: [ManageHook] myManageHook = [ isFullscreen --> doFullFloatNoBorders -- more rules ] where role = stringProperty "WM_WINDOW_ROLE" unfloat = ask >>= doF . W.sink

myKeys conf@(XConfig {XMonad.modMask = modMask}) = M.fromList $ [ -- Toggle borders ((modMask .|. shiftMask, xK_b ), withFocused toggleBorder) -- more key definitions ]

-- Main configuration myConfig = ewmhFullscreen $ ewmh def { modMask = mod1Mask , keys = myKeys , manageHook = manageDocks <+> composeAll myManageHook -- more configuration } -- Key binding to toggle the gap for the bar. toggleStrutsKey XConfig {XMonad.modMask = modMask} = (modMask .|. controlMask, xK_b)

main = xmonad =<< statusBar "xmonad" def toggleStrutsKey myConfig

-- *Eyal Erez <**oneself@gmail.com* *>*

There are 10 types of people, those who know binary and those who don't.

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