[evince] [shell] Add ev_application_get_n_windows()

[Carlos Garcia Campos <carlosgc src gnome org>]

commit a945ec884efd6cd43f873b004ba17b9f7f8146e0
Author: Carlos Garcia Campos <carlosgc gnome org>
Date:   Mon Jul 12 20:13:15 2010 +0200

    [shell] Add ev_application_get_n_windows()

 shell/ev-application.c |   18 ++++++++++++++++++
 shell/ev-application.h |    1 +
 2 files changed, 19 insertions(+), 0 deletions(-)
---
diff --git a/shell/ev-application.c b/shell/ev-application.c
index 45dd9cd..0bb7a39 100644
--- a/shell/ev-application.c
+++ b/shell/ev-application.c
@@ -1051,6 +1051,24 @@ ev_application_has_window (EvApplication *application)
 	return retval;
 }
 
+guint
+ev_application_get_n_windows (EvApplication *application)
+{
+	GList *l, *toplevels;
+	guint  retval = 0;
+
+	toplevels = gtk_window_list_toplevels ();
+
+	for (l = toplevels; l != NULL; l = l->next) {
+		if (EV_IS_WINDOW (l->data))
+			retval++;
+	}
+
+	g_list_free (toplevels);
+
+	return retval;
+}
+
 const gchar *
 ev_application_get_uri (EvApplication *application)
 {
diff --git a/shell/ev-application.h b/shell/ev-application.h
index 1623aeb..c00b554 100644
--- a/shell/ev-application.h
+++ b/shell/ev-application.h
@@ -67,6 +67,7 @@ void	          ev_application_open_uri_list       (EvApplication   *application,
     						      guint32          timestamp);
 GDBusConnection  *ev_application_get_dbus_connection (EvApplication   *application);
 gboolean	  ev_application_has_window	     (EvApplication   *application);
+guint             ev_application_get_n_windows       (EvApplication   *application);
 const gchar *     ev_application_get_uri             (EvApplication   *application);
 GObject		 *ev_application_get_media_keys	     (EvApplication   *application);