From 5bdebf5ab045a07450f64e18f4c19c416a6611e1 Mon Sep 17 00:00:00 2001
From: Anton Plotnikov <plotnikovanton@gmail.com>
Date: Sun, 15 Apr 2018 05:06:44 +0300
Subject: [PATCH] Add opacity-rules to compton

---
 modules/services/compton.nix | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/modules/services/compton.nix b/modules/services/compton.nix
index 54a29dc2..d4ac549c 100644
--- a/modules/services/compton.nix
+++ b/modules/services/compton.nix
@@ -29,6 +29,7 @@ let
       active-opacity   = ${cfg.activeOpacity};
       inactive-opacity = ${cfg.inactiveOpacity};
       menu-opacity     = ${cfg.menuOpacity};
+      opacity-rule     = ${toJSON cfg.opacityRule};
 
       # other options
       backend = ${toJSON cfg.backend};
@@ -148,6 +149,19 @@ in {
       '';
     };
 
+    opacityRule = mkOption {
+      type = types.listOf types.str;
+      default = [];
+      example = [
+        "87:class_i ?= 'scratchpad'"
+        "91:class_i ?= 'xterm'"
+      ];
+      description = ''
+        List of opacity rules.
+        See <literal>compton(1)</literal> man page for more examples.
+      '';
+    };
+
     backend = mkOption {
       type = types.str;
       default = "glx";