[gthumb] headerbar: added a button to go to the catalogs root

[Paolo Bacchilega <paobac src gnome org>]

commit 9641273645be69d0bbd264368bf84631fff2e207
Author: Paolo Bacchilega <paobac src gnome org>
Date:   Tue Jul 4 13:34:51 2017 +0200

    headerbar: added a button to go to the catalogs root

 extensions/catalogs/callbacks.c |   24 ++++++++++++++++++++++++
 1 files changed, 24 insertions(+), 0 deletions(-)
---
diff --git a/extensions/catalogs/callbacks.c b/extensions/catalogs/callbacks.c
index 2053ac1..3d66c6e 100644
--- a/extensions/catalogs/callbacks.c
+++ b/extensions/catalogs/callbacks.c
@@ -140,6 +140,20 @@ monitor_folder_changed_cb (GthMonitor      *monitor,
 }
 
 
+static void
+catalogs_button_clicked_cb (GtkButton *button,
+                           gpointer   user_data)
+{
+       GthBrowser *browser = user_data;
+       GFile      *location;
+
+       location = g_file_new_for_uri ("catalog:///");
+       gth_browser_go_to (browser, location, NULL);
+
+       g_object_unref (location);
+}
+
+
 void
 catalogs__gth_browser_construct_cb (GthBrowser *browser)
 {
@@ -164,6 +178,16 @@ catalogs__gth_browser_construct_cb (GthBrowser *browser)
                                         fixed_menu_entries,
                                         G_N_ELEMENTS (fixed_menu_entries));
 
+       {
+               GtkWidget  *button;
+
+               button = _gtk_image_button_new_for_header_bar ("file-library-symbolic");
+               gtk_widget_set_tooltip_text (button, _("Catalogs"));
+               gtk_widget_show (button);
+               g_signal_connect (button, "clicked", G_CALLBACK (catalogs_button_clicked_cb), browser);
+               gtk_box_pack_start (GTK_BOX (gth_browser_get_headerbar_section (browser, 
GTH_BROWSER_HEADER_SECTION_BROWSER_LOCATIONS)), button, FALSE, FALSE, 0);
+       }
+
        data->monitor_events = g_signal_connect (gth_main_get_default_monitor (),
                                                 "folder-changed",
                                                 G_CALLBACK (monitor_folder_changed_cb),