feat(waybar): add a record module to track screen recording

modules/home-manager/desktop/sway/includes/files/waybar-style.css

@@ -117,3 +117,17 @@ button:hover{
     font-family: "DejaVu sans";
     font-size: 12px;
 }
+#custom-screenrecord {
+  color: @color-critical;
+  border-bottom: 1px solid @color-critical;
+  animation-name: critical-animation;
+  animation-duration: 2s;
+  animation-timing-function: ease-in-out;
+  animation-direction: alternate;
+  animation-iteration-count: infinite;
+}
+
+@keyframes critical-animation {
+  from {color: @color-critical;}
+  to {color: white;}
+}

modules/home-manager/desktop/sway/includes/waybar.nix

@@ -1,4 +1,4 @@
-{lib, config, ...}:
+{lib, config, pkgs, ...}:
 with lib;
 let
   cfg = config.modules.desktop.sway;
@@ -16,7 +16,9 @@ in
           layer = "top";
           spacing = 6;
           disable-toolptips = true;
-          modules-center = [];
+          modules-center = [
+            "custom/screenrecord"
+          ];
           modules-left = [
             "sway/workspaces"
             "sway/mode"
@@ -53,6 +55,7 @@ in
             "custom/sep"
             "clock"
             "custom/sep"
+            "privacy"
             "tray"
           ];
           "clock" = {
@@ -73,6 +76,14 @@ in
             "format" = "|";
             "tooltip" = false;
           };
+          "custom/screenrecord" = {
+		        "format" = "   [rec.] ";
+		        "interval" = 1;
+		        "exec" = "echo '{\"class\": \"recording\"}'";
+		        "exec-if" = "${pkgs.procps}/bin/pgrep wl-screenrec";
+            "on-click" = "exec ${pkgs.coreutils}/bin/kill -s SIGINT $(${pkgs.procps}/bin/pgrep wl-screenrec)";
+            "tooltype" = false;
+          };
           "idle_inhibitor" = {
               "format" = "{icon}";
               "format-icons" = {
@@ -96,6 +107,29 @@ in
             "format-wifi" = "{essid} ({signalStrength}%) ";
             "tooltip" = false;
           };
+          "privacy"= {
+            "icon-spacing" = 4;
+            "icon-size" = 10;
+            "transition-duration" = 250;
+            "modules"= [
+              {
+                "type" = "screenshare";
+                "tooltip" = true;
+                "tooltip-icon-size" = 16;
+              }
+              {
+                "type" = "audio-out";
+                "tooltip" = true;
+                "tooltip-icon-size" = 24;
+              }
+              {
+                "type" = "audio-in";
+                "tooltip" = true;
+                "tooltip-icon-size" = 24;
+              }
+            ];
+            "ignore-monitor" = true;
+          };
           "pulseaudio#output" = {
             "format" = "{volume}% {icon} ";
             "format-bluetooth" = "{volume}% {icon}";