From f1fda23f3f1043fba4770ec7a7b154de3de0c77c Mon Sep 17 00:00:00 2001
From: Noah Masur <7386960+nmasur@users.noreply.github.com>
Date: Sat, 28 May 2022 16:48:02 -0400
Subject: [PATCH] volnoti volume notifications

---
 modules/gaming/legendary.nix |  2 +-
 modules/graphical/i3.nix     |  7 -----
 modules/hardware/audio.nix   | 58 ++++++++++++++++++++++++++++++++----
 3 files changed, 54 insertions(+), 13 deletions(-)

diff --git a/modules/gaming/legendary.nix b/modules/gaming/legendary.nix
index 0d49636..0428a6a 100644
--- a/modules/gaming/legendary.nix
+++ b/modules/gaming/legendary.nix
@@ -7,7 +7,7 @@
     environment.systemPackages = with pkgs; [
       legendary-gl
       rare # GUI for Legendary (not working)
-      wineWowPackages.stable # 32-bit and 64-bit wineWowPackages
+      wineWowPackages.stable # 32-bit and 64-bit wineWowPackages, see https://nixos.wiki/wiki/Wine
     ];
 
     home-manager.users.${config.user} = {
diff --git a/modules/graphical/i3.nix b/modules/graphical/i3.nix
index 2a00e62..b2ba2ca 100644
--- a/modules/graphical/i3.nix
+++ b/modules/graphical/i3.nix
@@ -93,13 +93,6 @@ in {
           };
           keybindings = {
 
-            # PulseAudio adjust volume
-            "XF86AudioRaiseVolume" = "exec --no-startup-id pamixer -i 2";
-            "XF86AudioLowerVolume" = "exec --no-startup-id pamixer -d 2";
-            "XF86AudioMute" = "exec --no-startup-id pamixer -t";
-            "XF86AudioMicMute" =
-              "exec --no-startup-id pamixer --default-source -t";
-
             # Adjust screen brightness
             "Shift+F12" =
               "exec ddcutil --display 1 setvcp 10 + 30 && sleep 1; exec ddcutil --display 2 setvcp 10 + 30";
diff --git a/modules/hardware/audio.nix b/modules/hardware/audio.nix
index 632b3cd..88c17c4 100644
--- a/modules/hardware/audio.nix
+++ b/modules/hardware/audio.nix
@@ -1,13 +1,61 @@
-{ config, pkgs, lib, ... }: {
+{ config, pkgs, lib, ... }:
+
+let
+
+  # These micro-scripts change the volume while also triggering the volume
+  # notification widget
+
+  increaseVolume = pkgs.writeShellScriptBin "increaseVolume" ''
+    ${pkgs.pamixer}/bin/pamixer -i 2
+    volume=$(${pkgs.pamixer}/bin/pamixer --get-volume)
+    ${pkgs.volnoti}/bin/volnoti-show $volume
+  '';
+
+  decreaseVolume = pkgs.writeShellScriptBin "decreaseVolume" ''
+    ${pkgs.pamixer}/bin/pamixer -d 2
+    volume=$(${pkgs.pamixer}/bin/pamixer --get-volume)
+    ${pkgs.volnoti}/bin/volnoti-show $volume
+  '';
+
+  toggleMute = pkgs.writeShellScriptBin "toggleMute" ''
+    ${pkgs.pamixer}/bin/pamixer --toggle-mute
+    mute=$(${pkgs.pamixer}/bin/pamixer --get-mute)
+    if [ "$mute" == "true" ]; then
+        ${pkgs.volnoti}/bin/volnoti-show --mute
+    else
+        volume=$(${pkgs.pamixer}/bin/pamixer --get-volume)
+        ${pkgs.volnoti}/bin/volnoti-show $volume
+    fi
+  '';
+
+in {
 
   config = lib.mkIf config.gui.enable {
     sound.enable = true;
     hardware.pulseaudio.enable = true;
 
-    environment.systemPackages = with pkgs;
-      [
-        pamixer # Audio control
-      ];
+    environment.systemPackages = with pkgs; [
+      pamixer # Audio control
+      volnoti # Volume notifications
+    ];
+
+    home-manager.users.${config.user} = {
+
+      # Graphical volume notifications
+      services.volnoti.enable = true;
+
+      # i3 keybinds for changing the volume
+      xsession.windowManager.i3.config.keybindings = {
+        "XF86AudioRaiseVolume" =
+          "exec --no-startup-id ${increaseVolume}/bin/increaseVolume";
+        "XF86AudioLowerVolume" =
+          "exec --no-startup-id ${decreaseVolume}/bin/decreaseVolume";
+        "XF86AudioMute" = "exec --no-startup-id ${toggleMute}/bin/toggleMute";
+        "XF86AudioMicMute" =
+          "exec --no-startup-id pamixer --default-source --toggle-mute";
+      };
+
+    };
   };
 
 }