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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 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@eazel.com>
*/
#ifndef NAUTILUS_DIRECTORY_H
#define NAUTILUS_DIRECTORY_H
#include <gtk/gtkobject.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.
3) An interface that folds together the cached information that's
kept in the metafile with "trustworthy" versions of the same
information available from other means.
*/
#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 metadata_changed signal is emitted when changes to the metadata
* for the directory itself are made. Changes to file metadata just
* result in calls to files_changed.
*/
void (* metadata_changed) (NautilusDirectory *directory);
/* 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);
/*** 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_metadata,
NautilusDirectoryCallback callback,
gpointer callback_data);
void (* cancel_callback) (NautilusDirectory *directory,
NautilusDirectoryCallback callback,
gpointer callback_data);
void (* file_monitor_add) (NautilusDirectory *directory,
gconstpointer client,
GList *monitor_attributes,
gboolean monitor_metadata,
gboolean force_reload);
void (* file_monitor_remove) (NautilusDirectory *directory,
gconstpointer client);
gboolean (* are_all_files_seen) (NautilusDirectory *directory);
gboolean (* is_not_empty) (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);
/* Convenience functions, since we do a lot of ref'ing and unref'ing. */
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);
/* Waiting for data that's read asynchronously.
* The file attribute and metadata keys are for files in the directory.
* If any file attributes or metadata keys are passed, it won't call
* until all the files are seen.
*/
void nautilus_directory_call_when_ready (NautilusDirectory *directory,
GList *file_attributes,
gboolean wait_for_metadata,
NautilusDirectoryCallback callback,
gpointer callback_data);
GList * nautilus_directory_wait_until_ready (NautilusDirectory *directory,
GList *file_attributes,
gboolean wait_for_metadata);
void nautilus_directory_cancel_callback (NautilusDirectory *directory,
NautilusDirectoryCallback callback,
gpointer callback_data);
/* Getting and setting metadata. */
char * nautilus_directory_get_metadata (NautilusDirectory *directory,
const char *key,
const char *default_metadata);
GList *nautilus_directory_get_metadata_list (NautilusDirectory *directory,
const char *list_key,
const char *list_subkey);
void nautilus_directory_set_metadata (NautilusDirectory *directory,
const char *key,
const char *default_metadata,
const char *metadata);
void nautilus_directory_set_metadata_list (NautilusDirectory *directory,
const char *list_key,
const char *list_subkey,
GList *list);
/* Covers for common data types. */
gboolean nautilus_directory_get_boolean_metadata (NautilusDirectory *directory,
const char *key,
gboolean default_metadata);
void nautilus_directory_set_boolean_metadata (NautilusDirectory *directory,
const char *key,
gboolean default_metadata,
gboolean metadata);
int nautilus_directory_get_integer_metadata (NautilusDirectory *directory,
const char *key,
int default_metadata);
void nautilus_directory_set_integer_metadata (NautilusDirectory *directory,
const char *key,
int default_metadata,
int metadata);
/* Monitor the files in a directory. */
void nautilus_directory_file_monitor_add (NautilusDirectory *directory,
gconstpointer client,
GList *monitor_attributes,
gboolean monitor_metadata,
gboolean force_reload);
void nautilus_directory_file_monitor_remove (NautilusDirectory *directory,
gconstpointer client);
/* 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);
#endif /* NAUTILUS_DIRECTORY_H */
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