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nautilus-column-utilities.c

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

/* nautilus-column-utilities.h - Utilities related to column specifications

   Copyright (C) 2004 Novell, 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 column COPYING.LIB.  If not,
   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.

   Authors: Dave Camp <dave@ximian.com>
*/

#include <config.h>
#include "nautilus-column-utilities.h"

#include <string.h>
#include <eel/eel-glib-extensions.h>
#include <glib/gi18n.h>
#include <libnautilus-extension/nautilus-column-provider.h>
#include <libnautilus-private/nautilus-module.h>

static GList *
get_builtin_columns (void)
{
      GList *columns;

      columns = g_list_append (NULL,
                         g_object_new (NAUTILUS_TYPE_COLUMN,
                                     "name", "name",
                                     "attribute", "name",
                                     "label", _("Name"),
                                     "description", _("The name and icon of the file."),
                                     NULL));
      columns = g_list_append (columns,
                         g_object_new (NAUTILUS_TYPE_COLUMN,
                                     "name", "size",
                                     "attribute", "size",
                                     "label", _("Size"),
                                     "description", _("The size of the file."),
                                     "xalign", 1.0,
                                     NULL));
      columns = g_list_append (columns,
                         g_object_new (NAUTILUS_TYPE_COLUMN,
                                     "name", "type",
                                     "attribute", "type",
                                     "label", _("Type"),
                                     "description", _("The type of the file."),
                                     NULL));
      columns = g_list_append (columns,
                         g_object_new (NAUTILUS_TYPE_COLUMN,
                                     "name", "date_modified",
                                     "attribute", "date_modified",
                                     "label", _("Date Modified"),
                                     "description", _("The date the file was modified."),
                                     NULL));

      columns = g_list_append (columns,
                         g_object_new (NAUTILUS_TYPE_COLUMN,
                                     "name", "date_accessed",
                                     "attribute", "date_accessed",
                                     "label", _("Date Accessed"),
                                     "description", _("The date the file was accessed."),
                                     NULL));

      columns = g_list_append (columns,
                         g_object_new (NAUTILUS_TYPE_COLUMN,
                                     "name", "owner",
                                     "attribute", "owner",
                                     "label", _("Owner"),
                                     "description", _("The owner of the file."),
                                     NULL));

      columns = g_list_append (columns,
                         g_object_new (NAUTILUS_TYPE_COLUMN,
                                     "name", "group",
                                     "attribute", "group",
                                     "label", _("Group"),
                                     "description", _("The group of the file."),
                                     NULL));

      columns = g_list_append (columns,
                         g_object_new (NAUTILUS_TYPE_COLUMN,
                                     "name", "permissions",
                                     "attribute", "permissions",
                                     "label", _("Permissions"),
                                     "description", _("The permissions of the file."),
                                     NULL));

      columns = g_list_append (columns,
                         g_object_new (NAUTILUS_TYPE_COLUMN,
                                     "name", "octal_permissions",
                                     "attribute", "octal_permissions",
                                     "label", _("Octal Permissions"),
                                     "description", _("The permissions of the file, in octal notation."),
                                     NULL));

      columns = g_list_append (columns,
                         g_object_new (NAUTILUS_TYPE_COLUMN,
                                     "name", "mime_type",
                                     "attribute", "mime_type",
                                     "label", _("MIME Type"),
                                     "description", _("The mime type of the file."),
                                     NULL));
      columns = g_list_append (columns,
                         g_object_new (NAUTILUS_TYPE_COLUMN,
                                     "name", "selinux_context",
                                     "attribute", "selinux_context",
                                     "label", _("SELinux Context"),
                                     "description", _("The SELinux security context of the file."),
                                     NULL));
      
      return columns;
}

static GList *
get_extension_columns (void)
{
      GList *columns;
      GList *providers;
      GList *l;
      
      providers = nautilus_module_get_extensions_for_type (NAUTILUS_TYPE_COLUMN_PROVIDER);
      
      columns = NULL;
      
      for (l = providers; l != NULL; l = l->next) {
            NautilusColumnProvider *provider;
            GList *provider_columns;
            
            provider = NAUTILUS_COLUMN_PROVIDER (l->data);
            provider_columns = nautilus_column_provider_get_columns (provider);
            columns = g_list_concat (columns, provider_columns);
      }

      nautilus_module_extension_list_free (providers);

      return columns;
}

GList *
nautilus_get_all_columns (void)
{
      static GList *columns = NULL;
      
      if (!columns) {
            columns =  g_list_concat (get_builtin_columns (), 
                                get_extension_columns ());
      }

      return nautilus_column_list_copy (columns);
}

GList *
nautilus_column_list_copy (GList *columns) 
{
      GList *ret;
      GList *l;
      
      ret = g_list_copy (columns);
      
      for (l = ret; l != NULL; l = l->next) {
            g_object_ref (l->data);
      }

      return ret;
}

void
nautilus_column_list_free (GList *columns)
{
      GList *l;
      
      for (l = columns; l != NULL; l = l->next) {
            g_object_unref (l->data);
      }
      
      g_list_free (columns);
}

static int
strv_index (char **strv, const char *str)
{
      int i;

      for (i = 0; strv[i] != NULL; ++i) {
            if (strcmp (strv[i], str) == 0)
                  return i;
      }

      return -1;
}

static int
column_compare (NautilusColumn *a, NautilusColumn *b, char **column_order)
{
      int index_a;
      int index_b;
      char *name;
      
      g_object_get (G_OBJECT (a), "name", &name, NULL);
      index_a = strv_index (column_order, name);
      g_free (name);

      g_object_get (G_OBJECT (b), "name", &name, NULL);
      index_b = strv_index (column_order, name);
      g_free (name);

      if (index_a == index_b) {
            int ret;
            char *label_a;
            char *label_b;
            
            g_object_get (G_OBJECT (a), "label", &label_a, NULL);
            g_object_get (G_OBJECT (b), "label", &label_b, NULL);
            ret = strcmp (label_a, label_b);
            g_free (label_a);
            g_free (label_b);
            
            return ret;
      } else if (index_a == -1) {
            return 1;
      } else if (index_b == -1) {
            return -1;
      } else {
            return index_a - index_b;
      }
}

GList *
nautilus_sort_columns (GList  *columns, 
                   char  **column_order)
{
      return g_list_sort_with_data (columns,
                              (GCompareDataFunc)column_compare,
                              column_order);
}
                   

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