From 4a845ced0fab4cca6f3122149756953a296b8667 Mon Sep 17 00:00:00 2001
From: Daniel Hahler <git@thequod.de>
Date: Fri, 10 Jul 2015 13:35:46 +0200
Subject: [PATCH] awful.widget.graph: setters: emit widget::updated only on
 changes

Ref: #284
---
 lib/awful/widget/graph.lua | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/lib/awful/widget/graph.lua b/lib/awful/widget/graph.lua
index be958724..abe464fb 100644
--- a/lib/awful/widget/graph.lua
+++ b/lib/awful/widget/graph.lua
@@ -224,8 +224,10 @@ end
 for _, prop in ipairs(properties) do
     if not graph["set_" .. prop] then
         graph["set_" .. prop] = function(_graph, value)
-            data[_graph][prop] = value
-            _graph:emit_signal("widget::updated")
+            if data[_graph][prop] ~= value then
+                data[_graph][prop] = value
+                _graph:emit_signal("widget::updated")
+            end
             return _graph
         end
     end