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Diffstat (limited to 'doc/window-managers.org')
| -rw-r--r-- | doc/window-managers.org | 225 |
1 files changed, 4 insertions, 221 deletions
diff --git a/doc/window-managers.org b/doc/window-managers.org index db8207c..92bc651 100644 --- a/doc/window-managers.org +++ b/doc/window-managers.org @@ -3,223 +3,7 @@ Listed below are ways to interface xmobar with your window manager of choice. -* Property-based Logging -** =XMonadLog= - - - Aliases to XMonadLog - - - Displays information from xmonad's =_XMONAD_LOG=. You can use - this by using functions from the [[https://hackage.haskell.org/package/xmonad-contrib-0.16/docs/XMonad-Hooks-DynamicLog.html][XMonad.Hooks.DynamicLog]] - module. By using the =xmonadPropLog= function in your logHook, - you can write the the above property. The following shows a - minimal xmonad configuration that spawns xmobar and then - writes to the =_XMONAD_LOG= property. - - #+begin_src haskell - main = do - spawn "xmobar" - xmonad $ def - { logHook = dynamicLogString defaultPP >>= xmonadPropLog - } - #+end_src - - This plugin can be used as a sometimes more convenient - alternative to =StdinReader=. For instance, it allows you to - (re)start xmobar outside xmonad. - -** =UnsafeXMonadLog= - - - Aliases to UnsafeXMonadLog - - Displays any text received by xmobar on the =_XMONAD_LOG= atom. - - Will not do anything to the text received. This means you can pass - xmobar dynamic actions. Be careful to escape (using =<raw=…>=) or - remove tags from dynamic text that you pipe through to xmobar in this - way. - - - Sample usage: Send the list of your workspaces, enclosed by actions - tags, to xmobar. This enables you to switch to a workspace when you - click on it in xmobar! - - #+begin_src shell - <action=`xdotool key alt+1`>ws1</action> <action=`xdotool key alt+1`>ws2</action> - #+end_src - - - If you use xmonad, It is advised that you still use =xmobarStrip= for - the =ppTitle= in your logHook: - - #+begin_src haskell - myPP = defaultPP { ppTitle = xmobarStrip } - main = xmonad $ def - { logHook = dynamicLogString myPP >>= xmonadPropLog - } - #+end_src - -** =XPropertyLog PropName= - - - Aliases to =PropName= - - Reads the X property named by =PropName= (a string) and displays its - value. The [[../examples/xmonadpropwrite.hs][examples/xmonadpropwrite.hs script]] in xmobar's distribution - can be used to set the given property from the output of any other - program or script. - -** =UnsafeXPropertyLog PropName= - - - Aliases to =PropName= - - Same as =XPropertyLog= but the input is not filtered to avoid - injection of actions (cf. =UnsafeXMonadLog=). The program writing the - value of the read property is responsible of performing any needed - cleanups. - -** =NamedXPropertyLog PropName Alias= - - - Aliases to =Alias= - - Same as =XPropertyLog= but a custom alias can be specified. - -** =UnsafeNamedXPropertyLog PropName Alias= - - - Aliases to =Alias= - - Same as =UnsafeXPropertyLog=, but a custom alias can be specified. - -* Logging via Stdin -** =StdinReader= - - - Aliases to StdinReader - - Displays any text received by xmobar on its standard input. - - Strips actions from the text received. This means you can't pass - dynamic actions via stdin. This is safer than =UnsafeStdinReader= - because there is no need to escape the content before passing it to - xmobar's standard input. - -** =UnsafeStdinReader= - - - Aliases to UnsafeStdinReader - - Displays any text received by xmobar on its standard input. - - Similar to [[=UnsafeXMonadLog=][UnsafeXMonadLog]], in the sense that it does not strip any - actions from the received text, only using =stdin= and not a property - atom of the root window. Please be equally carefully when using this - as when using =UnsafeXMonadLog=! - -* Pipe-based Logging -** =PipeReader "default text:/path/to/pipe" Alias= - - - Reads its displayed output from the given pipe. - - Prefix an optional default text separated by a colon - - Expands environment variables in the first argument of syntax =${VAR}= - or =$VAR= - -** =MarqueePipeReader "default text:/path/to/pipe" (length, rate, sep) Alias= - - - Generally equivalent to PipeReader - - - Text is displayed as marquee with the specified length, rate in 10th - seconds and separator when it wraps around - - #+begin_src haskell - Run MarqueePipeReader "/tmp/testpipe" (10, 7, "+") "mpipe" - #+end_src - - - Expands environment variables in the first argument - -** =BufferedPipeReader Alias [(Timeout, Bool, "/path/to/pipe1"), ..]= - - - Display data from multiple pipes. - - - Timeout (in tenth of seconds) is the value after which the - previous content is restored i.e. if there was already - something from a previous pipe it will be put on display - again, overwriting the current status. - - - A pipe with Timeout of 0 will be displayed permanently, just - like =PipeReader= - - - The boolean option indicates whether new data for this pipe - should make xmobar appear (unhide, reveal). In this case, the - Timeout additionally specifies when the window should be - hidden again. The output is restored in any case. - - - Use it for OSD-like status bars e.g. for setting the volume or - brightness: - - #+begin_src haskell - Run BufferedPipeReader "bpr" - [ ( 0, False, "/tmp/xmobar_window" ) - , ( 15, True, "/tmp/xmobar_status" ) - ] - #+end_src - - Have your window manager send window titles to - =/tmp/xmobar_window=. They will always be shown and not reveal - your xmobar. Sending some status information to - =/tmp/xmobar_status= will reveal xmonad for 1.5 seconds and - temporarily overwrite the window titles. - - - Take a look at [[../examples/status.sh][examples/status.sh]] - - - Expands environment variables for the pipe path - -* Handle-based Logging -** =HandleReader Handle Alias= - - - Display data from a Haskell =Handle= - - - This plugin is only useful if you are running xmobar from another - Haskell program like XMonad. - - - You can use =System.Process.createPipe= to create a pair of =read= & - =write= Handles. Pass the =read= Handle to HandleReader and write your - output to the =write= Handle: - - #+begin_src haskell - (readHandle, writeHandle) <- createPipe - xmobarProcess <- forkProcess $ xmobar myConfig - { commands = - Run (HandleReader readHandle "handle") : commands myConfig - } - hPutStr writeHandle "Hello World" - #+end_src - -* Software Transactional Memory - - When invoking xmobar from other Haskell code it can be easier and more - performant to use shared memory. The following plugins leverage - =Control.Concurrent.STM= to realize these gains for xmobar. - -** =QueueReader (TQueue a) (a -> String) String= - - - Display data from a Haskell =TQueue a=. - - - This plugin is only useful if you are running xmobar from another - haskell program like xmonad. - - - You should make an =IO= safe =TQueue a= with - =Control.Concurrent.STM.newTQueueIO=. Write to it from the user - code with =writeTQueue=, and read with =readTQueue=. A common use - is to overwite =ppOutput= from =XMonad.Hooks.DynamicLog= as shown - below. - - #+begin_src haskell - main :: IO () - main = do - initThreads - q <- STM.newTQueueIO @String - bar <- forkOS $ xmobar myConf - { commands = Run (QueueReader q id "XMonadLog") : commands myConf } - xmonad $ def { logHook = logWorkspacesToQueue q } - - logWorkspacesToQueue :: STM.TQueue String -> X () - logWorkspacesToQueue q = - dynamicLogWithPP def { ppOutput = STM.atomically . STM.writeTQueue q } - #+end_src - - Note that xmonad uses blocking Xlib calls in its event loop and isn't - normally compiled with - [[https://downloads.haskell.org/~ghc/latest/docs/html/users_guide/using-concurrent.html][the threaded RTS]] - so an xmobar thread running inside xmonad will suffer from delayed - updates. It is thus necessary to enable =-threaded= when compiling - xmonad configuration (=xmonad.hs=), e.g. by using a custom - =~/.xmonad/build= script. - -* Example of using the DBus IPC interface with XMonad +* Using the DBus IPC interface with XMonad Bind the key which should {,un}map xmobar to a dummy value. This is necessary for {,un}grabKey in xmonad. @@ -228,12 +12,11 @@ choice. ((0, xK_Alt_L), pure ()) #+end_src - Also, install =avoidStruts= layout modifier from - =XMonad.Hooks.ManageDocks= + Also, install =avoidStruts= layout modifier from =XMonad.Hooks.ManageDocks= Finally, install these two event hooks (=handleEventHook= in =XConfig=) - =myDocksEventHook= is a replacement for =docksEventHook= which reacts - on unmap events as well (which =docksEventHook= doesn't). + =myDocksEventHook= is a replacement for =docksEventHook= which reacts on unmap + events as well (which =docksEventHook= doesn't). #+begin_src haskell import qualified XMonad.Util.ExtensibleState as XS |