feat: Added new ipc command get wmlayout

[Sora3e8]

Added a new ipc command get wmlayout, allows to query current layout eg. for waybar status indicator.
Updated the documentation accordingly
Added into manpages

[DreamMaoMao]

mmsg get all-monitors

why not use this

[Sora3e8]

@DreamMaoMao
*edit
I misread your reply, I had no idea there was a layout_symbol in the get all-monitors dump as I am not using json that often I had no idea "jq" existed, but even if I knew about the "layout_symbol" attribute I probably would not have known what it is as I did not find any reference in documentation, I know the association is in the code, but I think I did not find it in docs.

Anyway even with that checking the documentation I did not find any function to get current active monitor, while the get all-monitors allows you to find it using active it's non-trivial parsing.
I needed the current wm layout type as an indicator as on cycle there's no other indicator, but window behavior.

Waybar config using the new mmsg call:

"custom/wmlayout": 
    {
      "format": "{icon}",
      "return-type": "json",
      "interval": 0.1,
      "exec": "mmsg get wmlayout|sed 's/wmlayout/alt/g'",
      "format-icons": 
      {
        "tile": "🟦",
        "scroller": "↔️📜",
        "grid": "🪟",
        "monocle": "🧐",
        "deck": "↔️🃏",
        "vertical_deck": "↕️🃏",
        "center_tile":"💠",
        "right_tile": "➡️",
        "vertical_scroller":"↕️📜",
        "vertical_tile":"↕️",
        "vertical_grid":"↕️🪟",
        "dwindle": "🌀",
        "fair": "🗂️",
        "vertical_fair": "↕️🗂️"
      }
    }

Without windows:

With windows:

Sample return:

╰─λ mmsg get wmlayout                                                                                                                                              127 (0.000s) < 20:18:58
{"wmlayout":"tile"}

[Senderman]

@Sora3e8 there's native support for mango layout in waybar without the need for custom module:

"mango/layout": {
    "format": "{}"
}

https://github.com/Alexays/Waybar/wiki/Module:-Mango#mangolayout

[Sora3e8]

@Senderman
Well it's been a while - I either did not know it was a thing or I did..., but it does not really seem that this native module allows me to substitute the symbols for the icons as I do in my waybar example, I may be wrong I suck with waybar config as I am not fan of json and manipulation with jsons overall.

[Senderman]

@Sora3e8 it actually allows:

"mango/layout": {
    "format": "default icon here",
    "format-S": "↔️📜",
    "format-M": "🧐",
    "format-F": "️🗂️"
}

and so on. Also you can apply css styles based on active layout, just read the documentation on the waybar's wiki page I provided a link to

[Sora3e8]

@Senderman
Hmm interesting, I was trying exactly this before and it did not work.
Probably a typo...

Thanks for the info.