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nautilus-ui-utilities.c

/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */

/* nautilus-ui-utilities.c - helper functions for GtkUIManager stuff

   Copyright (C) 2004 Red Hat, Inc.

   The Gnome Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public License as
   published by the Free Software Foundation; either version 2 of the
   License, or (at your option) any later version.

   The Gnome Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with the Gnome Library; see the file COPYING.LIB.  If not,
   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.

   Authors: Alexander Larsson <alexl@redhat.com>
*/

#include <config.h>
#include "nautilus-ui-utilities.h"
#include "nautilus-icon-info.h"
#include <gio/gio.h>

#include <gtk/gtk.h>
#include <eel/eel-debug.h>

void
nautilus_ui_unmerge_ui (GtkUIManager *ui_manager,
                  guint *merge_id,
                  GtkActionGroup **action_group)
{
      if (*merge_id != 0) {
            gtk_ui_manager_remove_ui (ui_manager,
                                *merge_id);
            *merge_id = 0;
      }
      if (*action_group != NULL) {
            gtk_ui_manager_remove_action_group (ui_manager,
                                        *action_group);
            *action_group = NULL;
      }
}
     
void
nautilus_ui_prepare_merge_ui (GtkUIManager *ui_manager,
                        const char *name,
                        guint *merge_id,
                        GtkActionGroup **action_group)
{
      *merge_id = gtk_ui_manager_new_merge_id (ui_manager);
      *action_group = gtk_action_group_new (name);
      gtk_action_group_set_translation_domain (*action_group, GETTEXT_PACKAGE);
      gtk_ui_manager_insert_action_group (ui_manager, *action_group, 0);
      g_object_unref (*action_group); /* owned by ui manager */
}


char *
nautilus_get_ui_directory (void)
{
      return g_strdup (DATADIR "/nautilus/ui");
}

char *
nautilus_ui_file (const char *partial_path)
{
      char *path;

      path = g_build_filename (DATADIR "/nautilus/ui", partial_path, NULL);
      if (g_file_test (path, G_FILE_TEST_EXISTS)) {
            return path;
      }
      g_free (path);
      return NULL;
}

const char *
nautilus_ui_string_get (const char *filename)
{
      static GHashTable *ui_cache = NULL;
      char *ui;
      char *path;

      if (ui_cache == NULL) {
            ui_cache = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
            eel_debug_call_at_shutdown_with_data ((GFreeFunc)g_hash_table_destroy, ui_cache);
      }

      ui = g_hash_table_lookup (ui_cache, filename);
      if (ui == NULL) {
            path = nautilus_ui_file (filename);
            if (path == NULL || !g_file_get_contents (path, &ui, NULL, NULL)) {
                  g_warning ("Unable to load ui file %s\n", filename); 
            } 
            g_free (path);
            g_hash_table_insert (ui_cache,
                             g_strdup (filename),
                             ui);
      }
      
      return ui;
}

static void
extension_action_callback (GtkAction *action,
                     gpointer callback_data)
{
      nautilus_menu_item_activate (NAUTILUS_MENU_ITEM (callback_data));
}

static void
extension_action_sensitive_callback (NautilusMenuItem *item,
                                     GParamSpec *arg1,
                                     gpointer user_data)
{
      gboolean value;
      
      g_object_get (G_OBJECT (item),
                    "sensitive", &value,
                  NULL);

      gtk_action_set_sensitive (GTK_ACTION (user_data), value);
}

GtkAction *
nautilus_action_from_menu_item (NautilusMenuItem *item)
{
      char *name, *label, *tip, *icon_name;
      gboolean sensitive, priority;
      GtkAction *action;
      GdkPixbuf *pixbuf;
      NautilusIconInfo *info;
      
      g_object_get (G_OBJECT (item), 
                  "name", &name, "label", &label, 
                  "tip", &tip, "icon", &icon_name,
                  "sensitive", &sensitive,
                  "priority", &priority,
                  NULL);
      
      action = gtk_action_new (name,
                         label,
                         tip,
                         icon_name);
      
      if (icon_name != NULL) {
            info = nautilus_icon_info_lookup_from_name (icon_name,
                                              nautilus_get_icon_size_for_stock_size (GTK_ICON_SIZE_MENU));

            pixbuf = nautilus_icon_info_get_pixbuf_nodefault_at_size (info,
                                                        nautilus_get_icon_size_for_stock_size (GTK_ICON_SIZE_MENU));
            if (pixbuf != NULL) {
                  g_object_set_data_full (G_OBJECT (action), "menu-icon",
                                    pixbuf,
                                    g_object_unref);
            }
            g_object_unref (info);
      }
      
      gtk_action_set_sensitive (action, sensitive);
      g_object_set (action, "is-important", priority, NULL);
      
      g_signal_connect_data (action, "activate",
                         G_CALLBACK (extension_action_callback),
                         g_object_ref (item), 
                         (GClosureNotify)g_object_unref, 0);
      
      g_free (name);
      g_free (label);
      g_free (tip);
      g_free (icon_name);
      
      return action;
}

GtkAction *
nautilus_toolbar_action_from_menu_item (NautilusMenuItem *item)
{
      char *name, *label, *tip, *icon_name;
      gboolean sensitive, priority;
      GtkAction *action;
      GdkPixbuf *pixbuf;
      NautilusIconInfo *info;
      int icon_size;
      
      g_object_get (G_OBJECT (item), 
                  "name", &name, "label", &label, 
                  "tip", &tip, "icon", &icon_name,
                  "sensitive", &sensitive,
                  "priority", &priority,
                  NULL);
      
      action = gtk_action_new (name,
                         label,
                         tip,
                         icon_name);
      
      if (icon_name != NULL) {
            icon_size = nautilus_get_icon_size_for_stock_size (GTK_ICON_SIZE_LARGE_TOOLBAR);
            info = nautilus_icon_info_lookup_from_name (icon_name, icon_size);

            pixbuf = nautilus_icon_info_get_pixbuf_nodefault_at_size (info, icon_size);
            if (pixbuf != NULL) {
                  g_object_set_data_full (G_OBJECT (action), "toolbar-icon",
                                    pixbuf,
                                    g_object_unref);
            }
            g_object_unref (info);
      }
      
      gtk_action_set_sensitive (action, sensitive);
      g_object_set (action, "is-important", priority, NULL);
      
      g_signal_connect_data (action, "activate",
                         G_CALLBACK (extension_action_callback),
                         g_object_ref (item), 
                         (GClosureNotify)g_object_unref, 0);

      g_signal_connect_object (item, "notify::sensitive",
                         G_CALLBACK (extension_action_sensitive_callback),
                         action,
                         0);

      g_free (name);
      g_free (label);
      g_free (tip);
      g_free (icon_name);

      return action;
}

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