user/eww: init

modules/default.nix

@@ -42,6 +42,7 @@ in {
     ./user/bspwm.nix
     ./user/direnv.nix
     ./user/dunst.nix
+    ./user/eww.nix
     ./user/git.nix
     ./user/gpg.nix
     ./user/kitty.nix

modules/user/bspwm.nix

@@ -1,3 +1,4 @@
+# Depends on eww
 { config, pkgs, ... }: {
   xsession.windowManager.bspwm = {
     enable = true;
@@ -6,11 +7,13 @@
       window_gap = 10;
       border_width = 0;
       split_ratio = 0.5;
-      top_padding = 25;
+      top_padding = 35;
     };
     extraConfig = ''
       ${pkgs.feh}/bin/feh --no-fehbg --bg-fill ~/Pictures/Wallpapers/current
-      systemctl --user restart polybar # home-manager loads this too early
+
+      ${pkgs.procps}/bin/pkill -SIGINT eww
+      ${pkgs.eww}/bin/eww open mainbar
     '';
   };
 }

modules/user/eww.nix

@@ -0,0 +1,8 @@
+# Depends on bspwm
+{ pkgs, ... }: {
+  home.packages = with pkgs; [ xtitle ];
+  programs.eww = {
+    enable = true;
+    configDir = ../../res/eww;
+  };
+}

overlays/default.nix

@@ -1,5 +1,6 @@
 builtins.map (path: import path) [
   ./discord.nix
+  ./eww.nix
   ./material-icons.nix
   ./picom.nix
   ./polymc.nix

overlays/eww.nix

@@ -0,0 +1,18 @@
+self: super: {
+  # Mainly for https://github.com/elkowar/eww/pull/280
+  eww = super.eww.overrideAttrs (old: rec {
+    version = "unstable-fb0e57a";
+    src = self.fetchFromGitHub {
+      owner = "elkowar";
+      repo = "eww";
+      rev = "fb0e57a0149904e76fb33807a2804d4af82350de";
+      sha256 = "089rvcswr0wy05fac8xbfrws1qacqi3iialpv8sai7mzlpsw21m0";
+    };
+    cargoSha256 = "1s7rxilqis2nbvjqjp5zarvmr9g6ndcicyx1rilgjv34qwna3mz1";
+    cargoDeps = self.rustPlatform.fetchCargoTarball {
+      inherit src;
+      name = "${old.pname}-${version}";
+      sha256 = cargoSha256;
+    };
+  });
+}

res/eww/eww.scss

@@ -0,0 +1,49 @@
+$background: #1a1b26;
+$accent: #9d7cd8;
+$foreground: #c0caf5;
+
+* {
+  all: unset;
+}
+
+window {
+    background: transparent;
+}
+
+.bar {
+    margin: 5px 20px 0px 20px;
+}
+
+.widget {
+    background: $background;
+    color: $foreground;
+    font-family: "Noto Sans";
+    font-weight: 600;
+    font-size: 15px;
+    padding: 5px 15px;
+    border-radius: 50px;
+}
+
+.time {
+    .base {
+        font-weight: 700;
+    }
+    .extension {
+        font-weight: 500;
+        color: rgba($foreground, .7);
+    }
+}
+
+.workspaces {
+    padding: 5px 10px;
+    font-size: 22px;
+
+    button {
+        padding: 0px 2px;
+    }
+
+    .empty, .occupied {
+        color: $accent;
+    }
+}
+

res/eww/eww.yuck

@@ -0,0 +1,58 @@
+(defwindow mainbar :monitor 0
+                   :geometry (geometry :x "0%"
+                                       :y "0%"
+                                       :width "100%"
+                                       :height "30px"
+                                       :anchor "top center")
+                   :stacking "fg"
+                   :windowtype "dock"
+                   :wm-ignore false
+  (bar))
+
+(defvar time-extended false)  ; for :run-while property of below variable
+                              ; when this turns true, the polling starts and
+                              ; var gets updated with given interval
+
+(defpoll ptime :interval "1s"
+               :run-while !time-extended
+  `date +%H:%M`)
+(defpoll petimea :interval "1s"
+                 :run-while time-extended
+  `date "+%A, %d %B %Y  "`)
+(defpoll petimeb :interval "1s"
+                 :run-while time-extended
+  `date "+:%S"`)
+
+(deflisten lworkspaces "./scripts/workspaces.sh")
+(deflisten ltitle "./scripts/title.sh")
+
+(defwidget bar []
+  (eventbox :onscroll "./scripts/scroll.sh {}"
+    (centerbox :orientation "h"
+               :class "bar"
+      (workspaces)
+      (title)
+      (time))))
+
+(defwidget workspaces []
+  (literal :content lworkspaces))
+
+(defwidget title []
+  (literal :content ltitle))
+
+(defwidget time_extension [text]
+  (label :text text
+         :class "extension"))
+
+(defwidget time []
+  (button :onclick `eww update time-extended=${time-extended ? "false" : "true"}`
+    (box :orientation "horizontal"
+         :space-evenly false
+         :halign "end"
+         :class "widget time"
+      (time_extension :text {time-extended ? petimea : ""})
+      (label :text ptime
+             :class "base")
+      (time_extension :text {time-extended ? petimeb : ""})
+      )))
+

res/eww/scripts/scroll.sh

@@ -0,0 +1,3 @@
+#!/usr/bin/env sh
+translated=$([ "$1" == "up" ] && echo "prev" || echo "next")
+bspc desktop -f $translated

res/eww/scripts/title.sh

@@ -0,0 +1,10 @@
+#!/usr/bin/env sh
+
+xtitle -s | while read -r line ; do
+    trunc=$(echo $line | cut -c-85)
+    if [ -z "$line" ]; then
+        echo ""
+    else
+        echo "(box :class \"widget title\" :halign \"center\" :valign \"center\" :vexpand true :hexpand true (label :text \"${trunc}\"))"
+    fi
+done

res/eww/scripts/workspaces.sh

@@ -0,0 +1,47 @@
+#!/usr/bin/env sh
+
+# Checks if a list ($1) contains an element ($2)
+contains() {
+    for e in $1; do
+        [ "$e" -eq "$2" ] && echo 1 && return
+    done
+    echo 0
+}
+
+print_workspaces() {
+    buf=""
+    desktops=$(bspc query -D --names)
+    focused_desktop=$(bspc query -D -d focused --names)
+    occupied_desktops=$(bspc query -D -d .occupied --names)
+    urgent_desktops=$(bspc query -D -d .urgent --names)
+
+    for d in $desktops; do
+        if [ "$(contains "$focused_desktop" "$d")" -eq 1 ]; then
+            ws=$d
+            icon=""
+            class="focused"
+        elif [ "$(contains "$occupied_desktops" "$d")" -eq 1 ]; then
+            ws=$d
+            icon=""
+            class="occupied"
+        elif [ "$(contains "$urgent_desktops" "$d")" -eq 1 ]; then
+            ws=$d
+            icon=""
+            class="urgent"
+        else
+            ws=$d
+            icon=""
+            class="empty"
+        fi
+
+        buf="$buf (eventbox :cursor \"hand\" (button :class \"$class\" :onclick \"bspc desktop -f $ws\" \"$icon\"))"
+    done
+
+    echo "(box :class \"widget workspaces\" :halign \"start\" :valign \"center\" :vexpand true :hexpand true $buf)"
+}
+
+# Listen to bspwm changes
+print_workspaces
+bspc subscribe desktop node_transfer | while read -r _ ; do
+    print_workspaces
+done

users/rin/default.nix

@@ -34,8 +34,8 @@
       rofi
 
       dunst
+      eww
       picom
-      polybar
 
       xorg
       sxhkd

users/rin/packages.nix

@@ -56,6 +56,7 @@ in {
   ] ++ lib.optionals enableGUI [
     discord
     element-desktop
+    eww
     feh
     gnome.file-roller
     gimp