[evince] presentation: Enable screensaver again when window loses the focus

[Carlos Garcia Campos <carlosgc src gnome org>]

commit c935a25cdd0c9791158b1252835142472152d6cc
Author: Carlos Garcia Campos <carlosgc gnome org>
Date:   Sun Mar 20 11:52:12 2011 +0100

    presentation: Enable screensaver again when window loses the focus
    
    Fixes bug #644133.

 shell/ev-window.c |   22 ++++++++++++++++++++++
 1 files changed, 22 insertions(+), 0 deletions(-)
---
diff --git a/shell/ev-window.c b/shell/ev-window.c
index ad9eb14..ee6160b 100644
--- a/shell/ev-window.c
+++ b/shell/ev-window.c
@@ -3976,6 +3976,22 @@ ev_window_view_presentation_finished (EvWindow *window)
 	ev_window_stop_presentation (window, TRUE);
 }
 
+static gboolean
+ev_window_view_presentation_focus_in (EvWindow *window)
+{
+	ev_application_screensaver_disable (EV_APP);
+
+	return FALSE;
+}
+
+static gboolean
+ev_window_view_presentation_focus_out (EvWindow *window)
+{
+	ev_application_screensaver_enable (EV_APP);
+
+	return FALSE;
+}
+
 static void
 ev_window_run_presentation (EvWindow *window)
 {
@@ -4005,6 +4021,12 @@ ev_window_run_presentation (EvWindow *window)
 	g_signal_connect_swapped (window->priv->presentation_view, "external-link",
 				  G_CALLBACK (view_external_link_cb),
 				  window);
+	g_signal_connect_swapped (window->priv->presentation_view, "focus-in-event",
+				  G_CALLBACK (ev_window_view_presentation_focus_in),
+				  window);
+	g_signal_connect_swapped (window->priv->presentation_view, "focus-out-event",
+				  G_CALLBACK (ev_window_view_presentation_focus_out),
+				  window);
 
 	gtk_box_pack_start (GTK_BOX (window->priv->main_box),
 			    window->priv->presentation_view,