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/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*-
nautilus-directory.h: Nautilus directory model.
Copyright (C) 1999, 2000, 2001 Eazel, Inc.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
This program 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
General Public License for more details.
You should have received a copy of the GNU General Public
License along with this program; if not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
Author: Darin Adler <darin@bentspoon.com>
*/
#ifndef NAUTILUS_DIRECTORY_H
#define NAUTILUS_DIRECTORY_H
#include <gtk/gtkobject.h>
#include <libgnomevfs/gnome-vfs-types.h>
/* NautilusDirectory is a class that manages the model for a directory,
real or virtual, for Nautilus, mainly the file-manager component. The directory is
responsible for managing both real data and cached metadata. On top of
the file system independence provided by gnome-vfs, the directory
object also provides:
1) A synchronization framework, which notifies via signals as the
set of known files changes.
2) An abstract interface for getting attributes and performing
operations on files.
*/
#define NAUTILUS_TYPE_DIRECTORY \
(nautilus_directory_get_type ())
#define NAUTILUS_DIRECTORY(obj) \
(GTK_CHECK_CAST ((obj), NAUTILUS_TYPE_DIRECTORY, NautilusDirectory))
#define NAUTILUS_DIRECTORY_CLASS(klass) \
(GTK_CHECK_CLASS_CAST ((klass), NAUTILUS_TYPE_DIRECTORY, NautilusDirectoryClass))
#define NAUTILUS_IS_DIRECTORY(obj) \
(GTK_CHECK_TYPE ((obj), NAUTILUS_TYPE_DIRECTORY))
#define NAUTILUS_IS_DIRECTORY_CLASS(klass) \
(GTK_CHECK_CLASS_TYPE ((klass), NAUTILUS_TYPE_DIRECTORY))
/* NautilusFile is defined both here and in nautilus-file.h. */
#ifndef NAUTILUS_FILE_DEFINED
#define NAUTILUS_FILE_DEFINED
typedef struct NautilusFile NautilusFile;
#endif
typedef struct NautilusDirectoryDetails NautilusDirectoryDetails;
typedef struct
{
GtkObject object;
NautilusDirectoryDetails *details;
} NautilusDirectory;
typedef void (*NautilusDirectoryCallback) (NautilusDirectory *directory,
GList *files,
gpointer callback_data);
typedef struct
{
GtkObjectClass parent_class;
/*** Notification signals for clients to connect to. ***/
/* The files_added signal is emitted as the directory model
* discovers new files.
*/
void (* files_added) (NautilusDirectory *directory,
GList *added_files);
/* The files_changed signal is emitted as changes occur to
* existing files that are noticed by the synchronization framework,
* including when an old file has been deleted. When an old file
* has been deleted, this is the last chance to forget about these
* file objects, which are about to be unref'd. Use a call to
* nautilus_file_is_gone () to test for this case.
*/
void (* files_changed) (NautilusDirectory *directory,
GList *changed_files);
/* The done_loading signal is emitted when a directory load
* request completes. This is needed because, at least in the
* case where the directory is empty, the caller will receive
* no kind of notification at all when a directory load
* initiated by `nautilus_directory_file_monitor_add' completes.
*/
void (* done_loading) (NautilusDirectory *directory);
void (* load_error) (NautilusDirectory *directory);
/*** Virtual functions for subclasses to override. ***/
gboolean (* contains_file) (NautilusDirectory *directory,
NautilusFile *file);
void (* call_when_ready) (NautilusDirectory *directory,
GList *file_attributes,
gboolean wait_for_file_list,
NautilusDirectoryCallback callback,
gpointer callback_data);
void (* cancel_callback) (NautilusDirectory *directory,
NautilusDirectoryCallback callback,
gpointer callback_data);
void (* file_monitor_add) (NautilusDirectory *directory,
gconstpointer client,
gboolean monitor_hidden_files,
gboolean monitor_backup_files,
GList *monitor_attributes,
NautilusDirectoryCallback initial_files_callback,
gpointer callback_data);
void (* file_monitor_remove) (NautilusDirectory *directory,
gconstpointer client);
void (* force_reload) (NautilusDirectory *directory);
gboolean (* are_all_files_seen) (NautilusDirectory *directory);
gboolean (* is_not_empty) (NautilusDirectory *directory);
char * (* get_name_for_self_as_new_file) (NautilusDirectory *directory);
} NautilusDirectoryClass;
/* Basic GtkObject requirements. */
GtkType nautilus_directory_get_type (void);
/* Get a directory given a uri.
* Creates the appropriate subclass given the uri mappings.
* Returns a referenced object, not a floating one. Unref when finished.
* If two windows are viewing the same uri, the directory object is shared.
*/
NautilusDirectory *nautilus_directory_get (const char *uri);
NautilusDirectory *nautilus_directory_get_for_file (NautilusFile *file);
/* Covers for gtk_object_ref and gtk_object_unref that provide two conveniences:
* 1) You don't have to cast to GtkObject *, so using these is type safe.
* 2) You are allowed to call these with NULL,
*/
void nautilus_directory_ref (NautilusDirectory *directory);
void nautilus_directory_unref (NautilusDirectory *directory);
/* Access to a URI. */
char * nautilus_directory_get_uri (NautilusDirectory *directory);
/* Is this file still alive and in this directory? */
gboolean nautilus_directory_contains_file (NautilusDirectory *directory,
NautilusFile *file);
/* Get the uri of the file in the directory, NULL if not found */
char * nautilus_directory_get_file_uri (NautilusDirectory *directory,
const char *file_name);
/* Get (and ref) a NautilusFile object for this directory. */
NautilusFile * nautilus_directory_get_corresponding_file (NautilusDirectory *directory);
/* Waiting for data that's read asynchronously.
* The file attribute and metadata keys are for files in the directory.
*/
void nautilus_directory_call_when_ready (NautilusDirectory *directory,
GList *file_attributes,
gboolean wait_for_all_files,
NautilusDirectoryCallback callback,
gpointer callback_data);
void nautilus_directory_cancel_callback (NautilusDirectory *directory,
NautilusDirectoryCallback callback,
gpointer callback_data);
/* Monitor the files in a directory. */
void nautilus_directory_file_monitor_add (NautilusDirectory *directory,
gconstpointer client,
gboolean monitor_hidden_files,
gboolean monitor_backup_files,
GList *attributes,
NautilusDirectoryCallback initial_files_callback,
gpointer callback_data);
void nautilus_directory_file_monitor_remove (NautilusDirectory *directory,
gconstpointer client);
void nautilus_directory_force_reload (NautilusDirectory *directory);
/* Get a list of all files currently known in the directory. */
GList * nautilus_directory_get_file_list (NautilusDirectory *directory);
/* Return true if the directory has information about all the files.
* This will be false until the directory has been read at least once.
*/
gboolean nautilus_directory_are_all_files_seen (NautilusDirectory *directory);
/* Return true if the directory is local. */
gboolean nautilus_directory_is_local (NautilusDirectory *directory);
/* Return false if directory contains anything besides a Nautilus metafile.
* Only valid if directory is monitored. Used by the Trash monitor.
*/
gboolean nautilus_directory_is_not_empty (NautilusDirectory *directory);
gboolean nautilus_directory_file_list_length_reached (NautilusDirectory *directory);
char * nautilus_directory_make_uri_canonical (const char *uri);
/* Convenience functions for dealing with a list of NautilusDirectory objects that each have a ref.
* These are just convenient names for functions that work on lists of GtkObject *.
*/
GList * nautilus_directory_list_ref (GList *directory_list);
void nautilus_directory_list_unref (GList *directory_list);
void nautilus_directory_list_free (GList *directory_list);
GList * nautilus_directory_list_copy (GList *directory_list);
GList * nautilus_directory_list_sort_by_uri (GList *directory_list);
#endif /* NAUTILUS_DIRECTORY_H */
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