From 69100790a1c720ef6af70d0879145969172ba4c5 Mon Sep 17 00:00:00 2001
From: Nikos Tsipinakis <nikos@tsipinakis.com>
Date: Thu, 13 Sep 2018 18:04:26 +0300
Subject: [PATCH] Do not wake up on focus events

Focus events do not mark any change in state of the notifications so
calling wake_up as a response is a wake of CPU cycles. Instead treat
them like PropertyNotify and only redraw if we need to change monitors.
---
 src/x11/x.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/src/x11/x.c b/src/x11/x.c
index 21eed84..b80f4fb 100644
--- a/src/x11/x.c
+++ b/src/x11/x.c
@@ -326,22 +326,16 @@ gboolean x_mainloop_fd_dispatch(GSource *source, GSourceFunc callback, gpointer
                                 wake_up();
                         }
                         break;
-                case FocusIn:
-                        LOG_D("XEvent: processing 'FocusIn'");
-                        wake_up();
-                        break;
-                case FocusOut:
-                        LOG_D("XEvent: processing 'FocusOut'");
-                        wake_up();
-                        break;
                 case CreateNotify:
                         LOG_D("XEvent: processing 'CreateNotify'");
                         if (win->visible &&
                             ev.xcreatewindow.override_redirect == 0)
                                 XRaiseWindow(xctx.dpy, win->xwin);
                         break;
+                case FocusIn:
+                case FocusOut:
                 case PropertyNotify:
-                        LOG_D("XEvent: processing 'PropertyNotify'");
+                        LOG_D("XEvent: Checking for active sceen changes");
                         fullscreen_now = have_fullscreen_window();
                         scr = get_active_screen();