user/eww: add linebar

modules/user/bspwm.nix

@@ -13,7 +13,7 @@
       ${pkgs.feh}/bin/feh --no-fehbg --bg-fill ~/Pictures/Wallpapers/current
 
       ${pkgs.procps}/bin/pkill -SIGINT eww
-      ${pkgs.eww}/bin/eww open mainbar
+      ${pkgs.eww}/bin/eww open linebar
     '';
   };
 }

res/eww/eww.scss

@@ -47,3 +47,26 @@ window {
     }
 }
 
+.widget.line-workspaces {
+    color: transparent;
+    padding: 0;
+    border-radius: 0;
+    font-size: 0;
+
+    button {
+        padding: 0 17px;
+    }
+
+    .empty {
+        background-color: $background;
+    }
+
+    .occupied {
+        background-color: $accent;
+    }
+
+    .focused {
+        background-color: $foreground;
+    }
+}
+

res/eww/eww.yuck

@@ -1,3 +1,14 @@
+(defwindow linebar :monitor 0
+                   :geometry (geometry :x "35px"
+                                       :y "0%"
+                                       :width "100%"
+                                       :height "2px"
+                                       :anchor "top center")
+                   :stacking "fg"
+                   :windowtype "dock"
+                   :wm-ignore false
+  (wlinebar))
+
 (defwindow mainbar :monitor 0
                    :geometry (geometry :x "0%"
                                        :y "0%"
@@ -24,6 +35,7 @@
   `date "+:%S"`)
 
 (deflisten lworkspaces "./scripts/workspaces.sh")
+(deflisten llineworkspaces "./scripts/line-workspaces.sh")
 (deflisten ltitle "./scripts/title.sh")
 
 (defwidget bar []
@@ -34,9 +46,16 @@
       (title)
       (time))))
 
+(defwidget wlinebar []
+  (eventbox :onscroll "./scripts/scroll.sh {}"
+    (line_workspaces)))
+
 (defwidget workspaces []
   (literal :content lworkspaces))
 
+(defwidget line_workspaces []
+  (literal :content llineworkspaces))
+
 (defwidget title []
   (literal :content ltitle))
 

res/eww/scripts/line-workspaces.sh

@@ -0,0 +1,43 @@
+#!/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=$d
+            class="focused"
+        elif [ "$(contains "$occupied_desktops" "$d")" -eq 1 ]; then
+            ws=$d
+            class="occupied"
+        elif [ "$(contains "$urgent_desktops" "$d")" -eq 1 ]; then
+            ws=$d
+            class="urgent"
+        else
+            ws=$d
+            class="empty"
+        fi
+
+        buf="$buf (eventbox :cursor \"hand\" (button :class \"$class\" :onclick \"bspc desktop -f $ws\" \"\"))"
+    done
+
+    echo "(box :class \"widget line-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