[evolution] I#985 - Ensure 16px online/offline icon height in the status bar

[Milan Crha <mcrha src gnome org>]

commit 6a90592f1a3186135ec718fb7c7f5c8760e2a99a
Author: Milan Crha <mcrha redhat com>
Date:   Mon Jun 29 12:08:51 2020 +0200

    I#985 - Ensure 16px online/offline icon height in the status bar
    
    Closes https://gitlab.gnome.org/GNOME/evolution/-/issues/985

 src/e-util/e-online-button.c | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)
---
diff --git a/src/e-util/e-online-button.c b/src/e-util/e-online-button.c
index 36fc5a4bba..448a47cee5 100644
--- a/src/e-util/e-online-button.c
+++ b/src/e-util/e-online-button.c
@@ -65,6 +65,27 @@ online_button_update_tooltip (EOnlineButton *button)
        gtk_widget_set_tooltip_text (GTK_WIDGET (button), tooltip);
 }
 
+static void
+online_button_update_icon (GtkImage *image,
+                          const gchar *filename)
+{
+       GdkPixbuf *pixbuf = NULL;
+       gint height = -1;
+
+       if (!filename)
+               return;
+
+       if (gdk_pixbuf_get_file_info (filename, NULL, &height) && height > 16)
+               pixbuf = gdk_pixbuf_new_from_file_at_scale (filename, -1, 16, TRUE, NULL);
+
+       if (pixbuf) {
+               gtk_image_set_from_pixbuf (image, pixbuf);
+               g_object_unref (pixbuf);
+       } else {
+               gtk_image_set_from_file (image, filename);
+       }
+}
+
 static void
 online_button_set_property (GObject *object,
                              guint property_id,
@@ -202,7 +223,7 @@ e_online_button_set_online (EOnlineButton *button,
        icon_info = gtk_icon_theme_lookup_icon (
                icon_theme, icon_name, GTK_ICON_SIZE_BUTTON, 0);
        filename = gtk_icon_info_get_filename (icon_info);
-       gtk_image_set_from_file (image, filename);
+       online_button_update_icon (image, filename);
        gtk_icon_info_free (icon_info);
 
        g_object_notify (G_OBJECT (button), "online");