From 948d98be90b361a32cd85242f797e00a6860f63b Mon Sep 17 00:00:00 2001
From: Stefano Mazzucco <stefano@curso.re>
Date: Sun, 2 Dec 2018 21:43:15 +0000
Subject: [PATCH] Prevent volume notifications from stacking

Feature requested originally by p-conrad in
https://github.com/stefano-m/awesome-pulseaudio_widget/pull/4
---
 pulseaudio_widget.lua | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/pulseaudio_widget.lua b/pulseaudio_widget.lua
index 22302c2..71eaf92 100644
--- a/pulseaudio_widget.lua
+++ b/pulseaudio_widget.lua
@@ -67,9 +67,15 @@ function widget:update_appearance(v)
 
 end
 
-function widget.notify(v)
+function widget:notify(v)
   local msg = tonumber(v) and string.format("%d%%", v) or v
-  naughty.notify({text=msg, timeout=1})
+
+  if self.notification then
+    naughty.destroy(self.notification, naughty.notificationClosedReason.dismissedByCommand)
+  end
+
+  self.notification = naughty.notify({text=msg, timeout=1})
+
 end
 
 function widget:update_sink(object_path)
@@ -140,7 +146,7 @@ function widget:connect_device(device)
         local v = math.ceil(tonumber(volume[1]) / this.BaseVolume * 100)
         if this.object_path == self.sink.object_path then
           self:update_appearance(v)
-          self.notify(v)
+          self:notify(v)
         end
       end,
       "VolumeUpdated"
@@ -153,7 +159,7 @@ function widget:connect_device(device)
         local m = is_mute and "Muted" or "Unmuted"
         if this.object_path == self.sink.object_path then
           self:update_appearance(m)
-          self.notify(m)
+          self:notify(m)
         end
       end,
       "MuteUpdated"