[tepl] InfoBar: update icon when :icon-from-message-type property is set

[Sébastien Wilmet <swilmet src gnome org>]

commit f97ec697c7149f4ad79b7a6dfe21b6bc1dd3c099
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Tue Nov 10 20:13:28 2020 +0100

    InfoBar: update icon when :icon-from-message-type property is set

 tepl/tepl-info-bar.c | 31 +++++++++++++++++++++----------
 1 file changed, 21 insertions(+), 10 deletions(-)
---
diff --git a/tepl/tepl-info-bar.c b/tepl/tepl-info-bar.c
index 2dfccf9..e4510ac 100644
--- a/tepl/tepl-info-bar.c
+++ b/tepl/tepl-info-bar.c
@@ -285,6 +285,25 @@ get_icon_name_for_message_type (TeplInfoBar *info_bar)
        return NULL;
 }
 
+static void
+update_icon_state (TeplInfoBar *info_bar)
+{
+       const gchar *icon_name;
+
+       icon_name = get_icon_name_for_message_type (info_bar);
+
+       if (info_bar->priv->icon_from_message_type &&
+           icon_name != NULL)
+       {
+               gtk_image_set_from_icon_name (info_bar->priv->icon, icon_name, GTK_ICON_SIZE_DIALOG);
+               gtk_widget_show (GTK_WIDGET (info_bar->priv->icon));
+       }
+       else
+       {
+               gtk_widget_hide (GTK_WIDGET (info_bar->priv->icon));
+       }
+}
+
 /**
  * tepl_info_bar_add_icon:
  * @info_bar: a #TeplInfoBar.
@@ -300,18 +319,9 @@ get_icon_name_for_message_type (TeplInfoBar *info_bar)
 void
 tepl_info_bar_add_icon (TeplInfoBar *info_bar)
 {
-       const gchar *icon_name;
-
        g_return_if_fail (TEPL_IS_INFO_BAR (info_bar));
 
-       icon_name = get_icon_name_for_message_type (info_bar);
-       if (icon_name == NULL)
-       {
-               return;
-       }
-
-       gtk_image_set_from_icon_name (info_bar->priv->icon, icon_name, GTK_ICON_SIZE_DIALOG);
-       gtk_widget_show (GTK_WIDGET (info_bar->priv->icon));
+       tepl_info_bar_set_icon_from_message_type (info_bar, TRUE);
 }
 
 /**
@@ -349,6 +359,7 @@ tepl_info_bar_set_icon_from_message_type (TeplInfoBar *info_bar,
        if (info_bar->priv->icon_from_message_type != icon_from_message_type)
        {
                info_bar->priv->icon_from_message_type = icon_from_message_type;
+               update_icon_state (info_bar);
                g_object_notify_by_pspec (G_OBJECT (info_bar), properties[PROP_ICON_FROM_MESSAGE_TYPE]);
        }
 }