madduck's git repository

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[url "git://git.madduck.net/madduck/"]
  insteadOf = madduck:

suspend apps without focus
[etc/awesome.git] / .config / awesome / rc.lua
index e630208197043cc9f12bbb76a5c4f53f49f4def7..18209c005949cae407a7501d0160dbad8dc9e01a 100644 (file)
@@ -576,6 +576,27 @@ function hook_battery()
 end
 -- }}}
 
+-- from https://blog.mister-muffin.de/2014/11/07/automatically-suspending-cpu-hungry-applications/
+client.add_signal("focus", function(c)
+  if c.class == "Iceweasel" or c.class == "chromium" or c.class == "Icedove" then
+    awful.util.spawn("kill -CONT " .. c.pid)
+  end
+end)
+client.add_signal("unfocus", function(c)
+  local capi = { timer = timer }
+  if c.class == "Iceweasel" or c.class == "chromium" or c.class == "Icedove" then
+    local timer_stop = capi.timer { timeout = 10 }
+    local send_sigstop = function ()
+      timer_stop:stop()
+      if client.focus.pid ~= c.pid then
+        awful.util.spawn("kill -STOP " .. c.pid)
+      end
+    end
+    timer_stop:add_signal("timeout", send_sigstop)
+    timer_stop:start()
+  end
+end)
+
 -- {{{ Statusbar battery
 --
 function get_acpibatt()