[gnome-control-center] power: Automatically add values to drop-down when necessary

[Bastien Nocera <hadess src gnome org>]

commit f26d21682a4d3da63d3d71bd90f8f0d943ea4cbf
Author: Bastien Nocera <hadess hadess net>
Date:   Wed Feb 14 11:36:28 2018 +0100

    power: Automatically add values to drop-down when necessary
    
    When a setting is set to a value that's not in the list of options, add
    that custom value to the drop-down for the duration of the run, so as to
    avoid the last item being selected and causing confusion.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=793448

 panels/power/cc-power-panel.c | 63 ++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 62 insertions(+), 1 deletion(-)
---
diff --git a/panels/power/cc-power-panel.c b/panels/power/cc-power-panel.c
index 565ee2772..7b7c4a24d 100644
--- a/panels/power/cc-power-panel.c
+++ b/panels/power/cc-power-panel.c
@@ -1188,6 +1188,51 @@ combo_time_changed_cb (GtkWidget *widget, CcPowerPanel *self)
   g_settings_set_int (self->priv->gsd_settings, key, value);
 }
 
+/* Copied from src/properties/bacon-video-widget-properties.c
+ * in totem */
+static char *
+time_to_string_text (gint64 msecs)
+{
+       char *secs, *mins, *hours, *string;
+       int sec, min, hour, _time;
+
+       _time = (int) (msecs / 1000);
+       sec = _time % 60;
+       _time = _time - sec;
+       min = (_time % (60*60)) / 60;
+       _time = _time - (min * 60);
+       hour = _time / (60*60);
+
+       hours = g_strdup_printf (g_dngettext (GETTEXT_PACKAGE, "%d hour", "%d hours", hour), hour);
+
+       mins = g_strdup_printf (g_dngettext (GETTEXT_PACKAGE, "%d minute",
+                                         "%d minutes", min), min);
+
+       secs = g_strdup_printf (g_dngettext (GETTEXT_PACKAGE, "%d second",
+                                         "%d seconds", sec), sec);
+
+       if (hour > 0)
+       {
+               /* 5 hours 2 minutes 12 seconds */
+               string = g_strdup_printf (C_("time", "%s %s %s"), hours, mins, secs);
+       } else if (min > 0) {
+               /* 2 minutes 12 seconds */
+               string = g_strdup_printf (C_("time", "%s %s"), mins, secs);
+       } else if (sec > 0) {
+               /* 10 seconds */
+               string = g_strdup (secs);
+       } else {
+               /* 0 seconds */
+               string = g_strdup (_("0 seconds"));
+       }
+
+       g_free (hours);
+       g_free (mins);
+       g_free (secs);
+
+       return string;
+}
+
 static void
 set_value_for_combo (GtkComboBox *combo_box, gint value)
 {
@@ -1209,11 +1254,27 @@ set_value_for_combo (GtkComboBox *combo_box, gint value)
       gtk_tree_model_get (model, &iter,
                           ACTION_MODEL_VALUE, &value_tmp,
                           -1);
-      if (value == value_tmp)
+      if (value_tmp == value)
         {
           gtk_combo_box_set_active_iter (combo_box, &iter);
           return;
         }
+      else if (value_tmp > value)
+        {
+          GtkTreeIter new;
+          char *text;
+
+          /* This is an unlisted value, add it to the drop-down */
+          gtk_list_store_insert_before (GTK_LIST_STORE (model), &new, &iter);
+          text = time_to_string_text (value * 1000);
+          gtk_list_store_set (GTK_LIST_STORE (model), &new,
+                              ACTION_MODEL_TEXT, text,
+                              ACTION_MODEL_VALUE, value,
+                              -1);
+          g_free (text);
+          gtk_combo_box_set_active_iter (combo_box, &new);
+          return;
+        }
       last = iter;
     } while (gtk_tree_model_iter_next (model, &iter));