[gnome-settings-daemon] power: Improve battery warning debounce logic

[Benjamin Berg <bberg src gnome org>]

commit 39c9fd0ff461d3c2800e60fdc907fbb99c16afd4
Author: Marti Raudsepp <marti juffo org>
Date:   Thu Oct 21 20:58:18 2021 +0300

    power: Improve battery warning debounce logic
    
    Despite the debounce logic introduced in
    60621b90bc3154dc905ed90780a7f19eb553ab26, GSD kept warning me of the
    battery level every time my Logitech K600 keyboard (via Unifying
    receiver) disconnects/reconnects.
    
    Added another condition: when battery level drops to
    `UP_DEVICE_LEVEL_NONE`, the previous entry in the hash table would not
    be overwritten. This avoids duplicated warnings when transitioning
    NONE->LOW->NONE->LOW.

 plugins/power/gsd-power-manager.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/plugins/power/gsd-power-manager.c b/plugins/power/gsd-power-manager.c
index 7a9222cc..757986e3 100644
--- a/plugins/power/gsd-power-manager.c
+++ b/plugins/power/gsd-power-manager.c
@@ -484,7 +484,7 @@ engine_device_debounce_warn (GsdPowerManager *manager,
                         ret = FALSE;
         }
 
-        if (warning != UP_DEVICE_LEVEL_UNKNOWN)
+        if (warning != UP_DEVICE_LEVEL_UNKNOWN && warning != UP_DEVICE_LEVEL_NONE)
                 g_hash_table_insert (manager->devices_notified_ht,
                                      g_strdup (serial),
                                      GINT_TO_POINTER (warning));