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Logs on 2022-04-28 (liberachat/#xmonad)

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04:54:20 <abastro[m]> So how do I do nested X sessions again? geekosaur
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06:30:22 <liskin> Xephyr
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08:23:49 <abastro[m]> How do I invoke Xephyr with gdb debugging xmonad
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11:15:50 <geekosaur> gdb unlikley to help in your case
11:16:13 <abastro[m]> :< why? geekosaur
11:16:30 <abastro[m]> Sad..
11:16:42 <geekosaur> I told you before, by the time you get that invalid closure it's already too late and there won't be a way to trace it back to its source
11:17:54 <geekosaur> xinit /usr/bin/gdb /path/to/xmonad -- /usr/bin/Xephyr :1 (or :2 or something that is not already in use)
11:18:35 <Ether[m]> I would like to create my own swap left function. How do i execute this sequence;
11:18:35 <Ether[m]> 1. sendMessage $ Go R
11:18:35 <Ether[m]> 2. sendMessage $ Swap L
11:18:35 <Ether[m]> 3. sendMessage $ Go R
11:18:54 <Ether[m]> One key bind for all.
11:19:01 <Ether[m]> Impossible?
11:21:22 <geekosaur> you should be able to join them with >> or *>, but you'll have to replace the $ with parentheses
11:21:45 <abastro[m]> do
11:21:45 <abastro[m]> sendMessage (Go R)
11:21:45 <abastro[m]> sendMessage (Swap L)
11:21:45 <abastro[m]> sendMessage (Go R)
11:21:56 <geekosaur> yes
11:21:57 <abastro[m]> A bit too advanced, ye
11:22:03 <Ether[m]> How do i bind?
11:22:08 <Ether[m]> M-l
11:22:39 <abastro[m]> Wdym by bind
11:22:54 <Ether[m]> I need this sequence as a binding
11:23:20 <abastro[m]> Bound to a key?
11:23:28 <Ether[m]> Yes
11:23:38 <abastro[m]> Just put what I said in the place where actions go
11:23:43 <geekosaur> just do it. nothing wrong with a multi-line binding
11:23:56 <Ether[m]> No comma?
11:23:58 <abastro[m]> It's okay to have multiple lines e.g. for single action
11:24:12 <geekosaur> or use >> as I said, or even do with semicolons
11:24:30 <geekosaur> ("M-l", do ...)
11:24:54 <Ether[m]> Thanks
11:25:10 <Ether[m]> Is there a way to speed up the execution?
11:25:13 <abastro[m]> Just to explode your head, you can also do `traverse_ sendMessage [Go R, Swap L, Go R]`
11:26:07 abastro[m] sent a code block: https://libera.ems.host/_matrix/media/r0/download/libera.chat/0866f50250154fe7bff69644322f36e8cac66bb9
11:26:24 <geekosaur> use sendMessageWithNoRefresh and then refresh afterward
11:29:17 Ether[m] uploaded an image: (520KiB) < https://libera.ems.host/_matrix/media/r0/download/matrix.org/zsDvqXlbcsHIlgJRGcQrslbT/20220428_172856_2034483521913583835.jpg >
11:29:53 <geekosaur> it's "traverse_ saendMessage" with a space
11:29:56 <geekosaur> er
11:30:05 <geekosaur> "traverse_ sendMessage"
11:30:39 <geekosaur> the convention is that a name ending in "_" produces only () as a result, which we use when the result of "traverse" would be a list of ()
11:31:35 Ether[m] uploaded an image: (456KiB) < https://libera.ems.host/_matrix/media/r0/download/matrix.org/YdgsrjKUuSinpWsZnlAMlXqT/20220428_173118_4076804114934602720.jpg >
11:34:47 <abastro[m]> Ouch. You could import Data.Foldable to fix it.
11:34:47 <abastro[m]> I should have not mentioned the traverse_ way.. I meant it mostly as a lterrible) joke
11:35:50 <Ether[m]> Actually the smallest and cleanest piece of code for this
11:37:45 <Ether[m]> Works like a charm!
11:37:59 <Ether[m]> Thanks geekosaur and abastro..
11:41:37 <geekosaur> you may still want to try the sendMessageWithNoRefresh way to make it a bit faster
11:41:53 <geekosaur> traverse_ sendMessageWithNoRefresh [...] >> refresh
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12:24:02 <Ether[m]> Its fast enough, will experiment with it, Thanks
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13:23:47 <Ether[m]> Why is this not the default? It seems extremely sane to me!
13:24:36 <Ether[m]> It works with all layouts.
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13:31:17 <geekosaur> mostly for historical reasons
13:31:30 <geekosaur> most people except the current default, which came from dwm
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13:47:50 <Ether[m]> <geekosaur> "you may still want to try the..." <- How does this change execution speed?
13:48:19 <geekosaur> instead of redrawing everything after each action in the list, it does one redraw at the end
13:48:41 <Ether[m]> And is a there chance for it cause instability?
13:48:57 <geekosaur> there shouldn't be
13:49:26 <Ether[m]> geekosaur: Ohh, is it should be more stable?
13:50:21 <geekosaur> should be just as stable, just faster because it doesn't force a redraw between each step of the traversal
14:00:21 <geekosaur> mm, not just redraws even. it'll also delay the logHook run until the end, which is good if you have ewmh because that does a lot of updates that only really need to be done once in this case
14:01:53 <abastro[m]> What is ewmh?
14:02:20 <geekosaur> https://specifications.freedesktop.org/wm-spec/latest
14:02:45 <abastro[m]> Oh
14:02:52 <geekosaur> X11R4 and later came with a specification for how window managers and clients communicate with each other, EWMH extends that protocol
14:02:58 <abastro[m]> Is it like X extension?
14:03:10 <geekosaur> but in this case I'm talking about the `ewmh` combinator that implements it for xmonad
14:03:23 <geekosaur> no, it's not a server extension
14:04:23 <abastro[m]> Hm I thought X specification also touches the communication protocol
14:04:28 <geekosaur> it *is* an xmonad extension because by default it only supports the old specification (ICCCM)
14:05:09 <geekosaur> the communication protocol remains the same. EWMH (and ICCCM) is implemented as specific property atoms set on the root window and client windows
14:05:50 <geekosaur> and a couple of client messages that can be sent to the root window (which the window manager listens on since it doesn't have a window of its own)
14:06:31 <geekosaur> so it's not extensions to the protocol, it's using the existing protocol in specific ways
14:08:14 <geekosaur> properties and client messages beginning with "WM_" are part of ICCCM; those starting with "_NET_WM_" belong to EWMH
14:16:48 <geekosaur> and the server is only a passive conduit; this is all about communication between a WM and other GUI programs
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14:51:39 <valarMorghulis[m> Does anyome know of a way to implement windows snapping (window goes to fullscreen if u drag it with mouse to the top of the screen) in xmonad?
14:58:52 <geekosaur> https://hackage.haskell.org/package/xmonad-contrib-0.17.0/docs/XMonad-Actions-FloatSnap.html this doesn't quite do what you want but you could probably implement something based on it
15:03:57 <valarMorghulis[m> <geekosaur> "https://hackage.haskell.org/..." <- I tried it and customer implement that, it snaps a window on some another window
15:04:12 <valarMorghulis[m> * couldn't implement
15:04:23 <geekosaur> right, as I said, you could start from its code to write what you want
15:04:38 <geekosaur> npothing does what you asked for already
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16:00:11 <geekosaur> mm, looking at it, you would replace `ifClick` in the mouse move example with a function to check if the window is at y==0 and fullscreened it
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20:26:18 <jakeStateless-Fa> sometimes when launching XMonad struts stop working, and my border color gets set to the default and my show-workspace-tooltip thing shows up as a black box, until I restart XMonad via mod-q... I noticed it once I added my custom fullscreen implementation here: [https://gitlab.com/mikenrafter/config/-/blob/master/.xmonad/lib/Custom/Fullscreen.hs](My Dotfiles)
20:26:23 <jakeStateless-Fa> does anyone know what's up here?
20:26:53 <jakeStateless-Fa> * implementation here: \[https://gitlab.com/mikenrafter/config/-/blob/master/.xmonad/lib/Custom/Fullscreen.hs](My Dotfiles)
20:27:26 <jakeStateless-Fa> ugh, the URL is slightly messed up because of improper md formatting on element, and that edit probably duplicated it on IRC, sorry about that... anyway...
20:32:48 <geekosaur> you would probably need to look at xmonad's stderr (check ~/.xsession-errors, unless you're using startx and then it'll be something like ctrl-alt-f1 to get back to the text console)
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23:39:29 <abastro[m]> geekosaur: Using existing protocol, in specific ways, I see.
23:43:43 <abastro[m]> What is show-workspace-tooltip? Can xmonad tooltip,
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23:54:08 <geekosaur> I assume that means either the old https://hackage.haskell.org/package/xmonad-contrib-0.17.0/docs/XMonad-Layout-ShowWName.html or the new https://xmonad.github.io/xmonad-docs/xmonad-contrib-0.17.0.9/XMonad-Hooks-ShowWName.html

All times are in UTC on 2022-04-28.