[gnome-settings-daemon] power: Fix wakeup with some keymaps

[Bastien Nocera <hadess src gnome org>]

commit b80480a2efb048ef8686d2d8631ca81f978e687f
Author: Bastien Nocera <hadess hadess net>
Date:   Fri May 2 12:28:26 2014 +0200

    power: Fix wakeup with some keymaps
    
    When trying to wake up the screen, try to use XF86WakeUp in preference
    to the left Alt. Don't use the right Alt key as it might be set as the
    Compose key which would eat the event without resetting the idle.
    
    Also make sure to initialise the keycode only once.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=729375

 plugins/power/gpm-common.c |   18 ++++++++----------
 1 files changed, 8 insertions(+), 10 deletions(-)
---
diff --git a/plugins/power/gpm-common.c b/plugins/power/gpm-common.c
index 74adccc..a16846e 100644
--- a/plugins/power/gpm-common.c
+++ b/plugins/power/gpm-common.c
@@ -744,20 +744,18 @@ backlight_set_abs (GnomeRRScreen *rr_screen,
 void
 reset_idletime (void)
 {
-        static gboolean inited = FALSE;
-        static KeyCode keycode1, keycode2;
-        static gboolean first_keycode = FALSE;
+        static KeyCode keycode;
 
-        if (inited == FALSE) {
-                keycode1 = XKeysymToKeycode (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), 
GDK_KEY_Alt_L);
-                keycode2 = XKeysymToKeycode (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), 
GDK_KEY_Alt_R);
+        if (keycode == 0) {
+                keycode = XKeysymToKeycode (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), 
GDK_KEY_WakeUp);
+                if (keycode == 0)
+                        keycode = XKeysymToKeycode (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), 
GDK_KEY_Alt_L);
         }
 
         gdk_error_trap_push ();
-        /* send a left or right alt key; first press, then release */
-        XTestFakeKeyEvent (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), first_keycode ? keycode1 : 
keycode2, True, CurrentTime);
-        XTestFakeKeyEvent (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), first_keycode ? keycode1 : 
keycode2, False, CurrentTime);
-        first_keycode = !first_keycode;
+        /* send a wakeup or left alt key; first press, then release */
+        XTestFakeKeyEvent (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), keycode, True, CurrentTime);
+        XTestFakeKeyEvent (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), keycode, False, CurrentTime);
         gdk_error_trap_pop_ignored ();
 }