[gtk+] GtkAppChooserWidget: Monitor installed applications

[Matthias Clasen <matthiasc src gnome org>]

commit 7c98d40e94a853345b2ced652bbd2f50ebddb6fc
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Dec 17 20:34:37 2013 -0500

    GtkAppChooserWidget: Monitor installed applications
    
    This uses the new GAppInfoMonitor object in GIO, which provides
    change notification when the set of installed applications changes.

 gtk/gtkappchooserwidget.c |   15 +++++++++++++++
 1 files changed, 15 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkappchooserwidget.c b/gtk/gtkappchooserwidget.c
index d7cc68b..648e987 100644
--- a/gtk/gtkappchooserwidget.c
+++ b/gtk/gtkappchooserwidget.c
@@ -85,6 +85,8 @@ struct _GtkAppChooserWidgetPrivate {
   GtkTreeViewColumn *column;
   GtkCellRenderer *padding_renderer;
   GtkCellRenderer *secondary_padding;
+
+  GAppInfoMonitor *monitor;
 };
 
 enum {
@@ -811,6 +813,13 @@ gtk_app_chooser_widget_initialize_items (GtkAppChooserWidget *self)
 }
 
 static void
+app_info_changed (GAppInfoMonitor     *monitor,
+                  GtkAppChooserWidget *self)
+{
+  gtk_app_chooser_refresh (GTK_APP_CHOOSER (self));
+}
+
+static void
 gtk_app_chooser_widget_set_property (GObject      *object,
                                      guint         property_id,
                                      const GValue *value,
@@ -902,6 +911,8 @@ gtk_app_chooser_widget_finalize (GObject *object)
 
   g_free (self->priv->content_type);
   g_free (self->priv->default_text);
+  g_signal_handlers_disconnect_by_func (self->priv->monitor, app_info_changed, self);
+  g_object_unref (self->priv->monitor);
 
   G_OBJECT_CLASS (gtk_app_chooser_widget_parent_class)->finalize (object);
 }
@@ -1128,6 +1139,10 @@ gtk_app_chooser_widget_init (GtkAppChooserWidget *self)
                                           self->priv->secondary_padding,
                                            padding_cell_renderer_func,
                                            NULL, NULL);
+
+  self->priv->monitor = g_app_info_monitor_get ();
+  g_signal_connect (self->priv->monitor, "changed",
+                   G_CALLBACK (app_info_changed), self);
 }
 
 static GAppInfo *