[gtk+] Use gtk_show_uri_on_window() in GtkLabel

[Bastien Nocera <hadess src gnome org>]

commit 51010da740154204ef22a52677dba3364c25ea9e
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Thu Feb 16 00:24:57 2017 +0000

    Use gtk_show_uri_on_window() in GtkLabel
    
    Avoid the deprecated gtk_show_uri(), and allow activating link in
    sandboxed applications.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=778726

 demos/gtk-demo/links.c |    2 +-
 gtk/gtklabel.c         |    7 ++++---
 2 files changed, 5 insertions(+), 4 deletions(-)
---
diff --git a/demos/gtk-demo/links.c b/demos/gtk-demo/links.c
index c896656..dcd7ba5 100644
--- a/demos/gtk-demo/links.c
+++ b/demos/gtk-demo/links.c
@@ -1,7 +1,7 @@
 /* Links
  *
  * GtkLabel can show hyperlinks. The default action is to call
- * gtk_show_uri() on their URI, but it is possible to override
+ * gtk_show_uri_on_window() on their URI, but it is possible to override
  * this with a custom handler.
  */
 
diff --git a/gtk/gtklabel.c b/gtk/gtklabel.c
index bc5ae4c..268f9c8 100644
--- a/gtk/gtklabel.c
+++ b/gtk/gtklabel.c
@@ -748,7 +748,7 @@ gtk_label_class_init (GtkLabelClass *class)
      *
      * The signal which gets emitted to activate a URI.
      * Applications may connect to it to override the default behaviour,
-     * which is to call gtk_show_uri().
+     * which is to call gtk_show_uri_on_window().
      *
      * Returns: %TRUE if the link has been activated
      *
@@ -6597,10 +6597,11 @@ gtk_label_activate_link (GtkLabel    *label,
                          const gchar *uri)
 {
   GtkWidget *widget = GTK_WIDGET (label);
+  GtkWidget *top_level = gtk_widget_get_toplevel (widget);
+  guint32 timestamp = gtk_get_current_event_time ();
   GError *error = NULL;
 
-  if (!gtk_show_uri (gtk_widget_get_screen (widget),
-                     uri, gtk_get_current_event_time (), &error))
+  if (!gtk_show_uri_on_window (GTK_WINDOW (top_level), uri, timestamp, &error))
     {
       g_warning ("Unable to show '%s': %s", uri, error->message);
       g_error_free (error);