[evince] ev-zoom-action: Use g_signal_connect_object to connect to EvDocumentModel changes

[Carlos Garcia Campos <carlosgc src gnome org>]

commit a7dfeac7bdaff9ccb57321cbabc7638ce1311bf6
Author: Carlos Garcia Campos <carlosgc gnome org>
Date:   Sun Jun 22 12:14:32 2014 +0200

    ev-zoom-action: Use g_signal_connect_object to connect to EvDocumentModel changes
    
    To make sure the signals are not emitted once the zoom control has been
    destroyed.

 shell/ev-zoom-action.c |   18 +++++++++---------
 1 files changed, 9 insertions(+), 9 deletions(-)
---
diff --git a/shell/ev-zoom-action.c b/shell/ev-zoom-action.c
index 86b1929..a603577 100644
--- a/shell/ev-zoom-action.c
+++ b/shell/ev-zoom-action.c
@@ -430,15 +430,15 @@ ev_zoom_action_constructed (GObject *object)
                 gtk_widget_set_sensitive (GTK_WIDGET (zoom_action), FALSE);
         }
 
-        g_signal_connect (zoom_action->priv->model, "notify::document",
-                          G_CALLBACK (document_changed_cb),
-                          zoom_action);
-        g_signal_connect (zoom_action->priv->model, "notify::scale",
-                          G_CALLBACK (zoom_changed_cb),
-                          zoom_action);
-        g_signal_connect (zoom_action->priv->model, "notify::max-scale",
-                          G_CALLBACK (max_zoom_changed_cb),
-                          zoom_action);
+        g_signal_connect_object (zoom_action->priv->model, "notify::document",
+                                 G_CALLBACK (document_changed_cb),
+                                 zoom_action, 0);
+        g_signal_connect_object (zoom_action->priv->model, "notify::scale",
+                                 G_CALLBACK (zoom_changed_cb),
+                                 zoom_action, 0);
+        g_signal_connect_object (zoom_action->priv->model, "notify::max-scale",
+                                 G_CALLBACK (max_zoom_changed_cb),
+                                 zoom_action, 0);
 
         setup_initial_entry_size (zoom_action);
 }