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nemo-file.c
8322 lines (7035 loc) · 207 KB
/
nemo-file.c
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/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*-
nemo-file.c: Nemo file 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., 51 Franklin Street - Suite 500,
Boston, MA 02110-1335, USA.
Author: Darin Adler <darin@bentspoon.com>
*/
#include <config.h>
#include "nemo-file.h"
#include "nemo-directory-notify.h"
#include "nemo-directory-private.h"
#include "nemo-signaller.h"
#include "nemo-desktop-directory.h"
#include "nemo-desktop-directory-file.h"
#include "nemo-desktop-icon-file.h"
#include "nemo-file-attributes.h"
#include "nemo-file-private.h"
#include "nemo-file-operations.h"
#include "nemo-file-utilities.h"
#include "nemo-global-preferences.h"
#include "nemo-lib-self-check-functions.h"
#include "nemo-link.h"
#include "nemo-metadata.h"
#include "nemo-module.h"
#include "nemo-search-directory.h"
#include "nemo-search-directory-file.h"
#include "nemo-thumbnails.h"
#include "nemo-vfs-file.h"
#include "nemo-file-undo-operations.h"
#include "nemo-file-undo-manager.h"
#include "nemo-saved-search-file.h"
#include <eel/eel-debug.h>
#include <eel/eel-glib-extensions.h>
#include <eel/eel-gtk-extensions.h>
#include <eel/eel-vfs-extensions.h>
#include <eel/eel-string.h>
#include <grp.h>
#include <gtk/gtk.h>
#include <glib/gi18n.h>
#include <glib/gstdio.h>
#include <gio/gio.h>
#include <glib.h>
#include <libnemo-extension/nemo-file-info.h>
#include <libnemo-extension/nemo-extension-private.h>
#include <libxml/parser.h>
#include <pwd.h>
#include <stdlib.h>
#include <sys/time.h>
#include <time.h>
#include <unistd.h>
#include <sys/stat.h>
#ifdef HAVE_SELINUX
#include <selinux/selinux.h>
#endif
#define DEBUG_FLAG NEMO_DEBUG_FILE
#include <libnemo-private/nemo-debug.h>
/* Time in seconds to cache getpwuid results */
#define GETPWUID_CACHE_TIME (5*60)
#define ICON_NAME_THUMBNAIL_LOADING "image-loading"
#undef NEMO_FILE_DEBUG_REF
#undef NEMO_FILE_DEBUG_REF_VALGRIND
#ifdef NEMO_FILE_DEBUG_REF_VALGRIND
#include <valgrind/valgrind.h>
#define DEBUG_REF_PRINTF VALGRIND_PRINTF_BACKTRACE
#else
#define DEBUG_REF_PRINTF printf
#endif
/* Files that start with these characters sort after files that don't. */
#define SORT_LAST_CHAR1 '.'
#define SORT_LAST_CHAR2 '#'
/* Name of Nemo trash directories */
#define TRASH_DIRECTORY_NAME ".Trash"
#define METADATA_ID_IS_LIST_MASK (1<<31)
#define MAX_THUMBNAIL_TRIES 1
typedef enum {
SHOW_HIDDEN = 1 << 0,
} FilterOptions;
typedef void (* ModifyListFunction) (GList **list, NemoFile *file);
enum {
CHANGED,
UPDATED_DEEP_COUNT_IN_PROGRESS,
LAST_SIGNAL
};
static guint signals[LAST_SIGNAL];
static GHashTable *symbolic_links;
static GQuark attribute_name_q,
attribute_size_q,
attribute_type_q,
attribute_modification_date_q,
attribute_date_modified_q,
attribute_accessed_date_q,
attribute_date_accessed_q,
attribute_mime_type_q,
attribute_size_detail_q,
attribute_deep_size_q,
attribute_deep_file_count_q,
attribute_deep_directory_count_q,
attribute_deep_total_count_q,
attribute_date_changed_q,
attribute_trashed_on_q,
attribute_trash_orig_path_q,
attribute_date_permissions_q,
attribute_permissions_q,
attribute_selinux_context_q,
attribute_octal_permissions_q,
attribute_owner_q,
attribute_group_q,
attribute_uri_q,
attribute_where_q,
attribute_link_target_q,
attribute_volume_q,
attribute_free_space_q;
static void nemo_file_info_iface_init (NemoFileInfoIface *iface);
static char * nemo_file_get_owner_as_string (NemoFile *file,
gboolean include_real_name);
static char * nemo_file_get_type_as_string (NemoFile *file);
static gboolean update_info_and_name (NemoFile *file,
GFileInfo *info);
static const char * nemo_file_peek_display_name (NemoFile *file);
static const char * nemo_file_peek_display_name_collation_key (NemoFile *file);
static void file_mount_unmounted (GMount *mount, gpointer data);
static void metadata_hash_free (GHashTable *hash);
G_DEFINE_TYPE_WITH_CODE (NemoFile, nemo_file, G_TYPE_OBJECT,
G_IMPLEMENT_INTERFACE (NEMO_TYPE_FILE_INFO,
nemo_file_info_iface_init));
static void
nemo_file_init (NemoFile *file)
{
file->details = G_TYPE_INSTANCE_GET_PRIVATE ((file), NEMO_TYPE_FILE, NemoFileDetails);
nemo_file_clear_info (file);
nemo_file_invalidate_extension_info_internal (file);
file->details->free_space = -1;
}
static GObject*
nemo_file_constructor (GType type,
guint n_construct_properties,
GObjectConstructParam *construct_params)
{
GObject *object;
NemoFile *file;
object = (* G_OBJECT_CLASS (nemo_file_parent_class)->constructor) (type,
n_construct_properties,
construct_params);
file = NEMO_FILE (object);
/* Set to default type after full construction */
if (NEMO_FILE_GET_CLASS (file)->default_file_type != G_FILE_TYPE_UNKNOWN) {
file->details->type = NEMO_FILE_GET_CLASS (file)->default_file_type;
}
return object;
}
gboolean
nemo_file_set_display_name (NemoFile *file,
const char *display_name,
const char *edit_name,
gboolean custom)
{
gboolean changed;
if (custom && display_name == NULL) {
/* We're re-setting a custom display name, invalidate it if
we already set it so that the old one is re-read */
if (file->details->got_custom_display_name) {
file->details->got_custom_display_name = FALSE;
nemo_file_invalidate_attributes (file,
NEMO_FILE_ATTRIBUTE_INFO);
}
return FALSE;
}
if (display_name == NULL || *display_name == 0) {
return FALSE;
}
if (!custom && file->details->got_custom_display_name) {
return FALSE;
}
if (edit_name == NULL) {
edit_name = display_name;
}
changed = FALSE;
if (g_strcmp0 (eel_ref_str_peek (file->details->display_name), display_name) != 0) {
changed = TRUE;
eel_ref_str_unref (file->details->display_name);
if (g_strcmp0 (eel_ref_str_peek (file->details->name), display_name) == 0) {
file->details->display_name = eel_ref_str_ref (file->details->name);
} else {
file->details->display_name = eel_ref_str_new (display_name);
}
g_free (file->details->display_name_collation_key);
file->details->display_name_collation_key = g_utf8_collate_key_for_filename (display_name, -1);
}
if (g_strcmp0 (eel_ref_str_peek (file->details->edit_name), edit_name) != 0) {
changed = TRUE;
eel_ref_str_unref (file->details->edit_name);
if (g_strcmp0 (eel_ref_str_peek (file->details->display_name), edit_name) == 0) {
file->details->edit_name = eel_ref_str_ref (file->details->display_name);
} else {
file->details->edit_name = eel_ref_str_new (edit_name);
}
}
file->details->got_custom_display_name = custom;
return changed;
}
static void
nemo_file_clear_display_name (NemoFile *file)
{
eel_ref_str_unref (file->details->display_name);
file->details->display_name = NULL;
g_free (file->details->display_name_collation_key);
file->details->display_name_collation_key = NULL;
eel_ref_str_unref (file->details->edit_name);
file->details->edit_name = NULL;
}
static gboolean
foreach_metadata_free (gpointer key,
gpointer value,
gpointer user_data)
{
guint id;
id = GPOINTER_TO_UINT (key);
if (id & METADATA_ID_IS_LIST_MASK) {
g_strfreev ((char **)value);
} else {
g_free ((char *)value);
}
return TRUE;
}
static void
metadata_hash_free (GHashTable *hash)
{
g_hash_table_foreach_remove (hash,
foreach_metadata_free,
NULL);
g_hash_table_destroy (hash);
}
static gboolean
metadata_hash_equal (GHashTable *hash1,
GHashTable *hash2)
{
GHashTableIter iter;
gpointer key1, value1, value2;
guint id;
if (hash1 == NULL && hash2 == NULL) {
return TRUE;
}
if (hash1 == NULL || hash2 == NULL) {
return FALSE;
}
if (g_hash_table_size (hash1) !=
g_hash_table_size (hash2)) {
return FALSE;
}
g_hash_table_iter_init (&iter, hash1);
while (g_hash_table_iter_next (&iter, &key1, &value1)) {
value2 = g_hash_table_lookup (hash2, key1);
if (value2 == NULL) {
return FALSE;
}
id = GPOINTER_TO_UINT (key1);
if (id & METADATA_ID_IS_LIST_MASK) {
if (!eel_g_strv_equal ((char **)value1, (char **)value2)) {
return FALSE;
}
} else {
if (strcmp ((char *)value1, (char *)value2) != 0) {
return FALSE;
}
}
}
return TRUE;
}
static void
clear_metadata (NemoFile *file)
{
if (file->details->metadata) {
metadata_hash_free (file->details->metadata);
file->details->metadata = NULL;
}
}
static GHashTable *
get_metadata_from_info (GFileInfo *info)
{
GHashTable *metadata;
char **attrs;
guint id;
int i;
GFileAttributeType type;
gpointer value;
attrs = g_file_info_list_attributes (info, "metadata");
metadata = g_hash_table_new (NULL, NULL);
for (i = 0; attrs[i] != NULL; i++) {
id = nemo_metadata_get_id (attrs[i] + strlen ("metadata::"));
if (id == 0) {
continue;
}
if (!g_file_info_get_attribute_data (info, attrs[i],
&type, &value, NULL)) {
continue;
}
if (type == G_FILE_ATTRIBUTE_TYPE_STRING) {
g_hash_table_insert (metadata, GUINT_TO_POINTER (id),
g_strdup ((char *)value));
} else if (type == G_FILE_ATTRIBUTE_TYPE_STRINGV) {
id |= METADATA_ID_IS_LIST_MASK;
g_hash_table_insert (metadata, GUINT_TO_POINTER (id),
g_strdupv ((char **)value));
}
}
g_strfreev (attrs);
return metadata;
}
gboolean
nemo_file_update_metadata_from_info (NemoFile *file,
GFileInfo *info)
{
gboolean changed = FALSE;
if (g_file_info_has_namespace (info, "metadata")) {
GHashTable *metadata;
metadata = get_metadata_from_info (info);
if (!metadata_hash_equal (metadata,
file->details->metadata)) {
changed = TRUE;
clear_metadata (file);
file->details->metadata = metadata;
} else {
metadata_hash_free (metadata);
}
} else if (file->details->metadata) {
changed = TRUE;
clear_metadata (file);
}
return changed;
}
void
nemo_file_clear_info (NemoFile *file)
{
file->details->got_file_info = FALSE;
if (file->details->get_info_error) {
g_error_free (file->details->get_info_error);
file->details->get_info_error = NULL;
}
/* Reset to default type, which might be other than unknown for
special kinds of files like the desktop or a search directory */
file->details->type = NEMO_FILE_GET_CLASS (file)->default_file_type;
if (!file->details->got_custom_display_name) {
nemo_file_clear_display_name (file);
}
if (!file->details->got_custom_activation_uri &&
file->details->activation_uri != NULL) {
g_free (file->details->activation_uri);
file->details->activation_uri = NULL;
}
if (file->details->icon != NULL) {
g_object_unref (file->details->icon);
file->details->icon = NULL;
}
g_free (file->details->thumbnail_path);
file->details->thumbnail_path = NULL;
file->details->thumbnailing_failed = FALSE;
file->details->thumbnail_try_count = 0;
file->details->is_launcher = FALSE;
file->details->is_foreign_link = FALSE;
file->details->is_trusted_link = FALSE;
file->details->is_symlink = FALSE;
file->details->is_hidden = FALSE;
file->details->is_mountpoint = FALSE;
file->details->uid = -1;
file->details->gid = -1;
file->details->can_read = TRUE;
file->details->can_write = TRUE;
file->details->can_execute = TRUE;
file->details->can_delete = TRUE;
file->details->can_trash = TRUE;
file->details->can_rename = TRUE;
file->details->can_mount = FALSE;
file->details->can_unmount = FALSE;
file->details->can_eject = FALSE;
file->details->can_start = FALSE;
file->details->can_start_degraded = FALSE;
file->details->can_stop = FALSE;
file->details->start_stop_type = G_DRIVE_START_STOP_TYPE_UNKNOWN;
file->details->can_poll_for_media = FALSE;
file->details->is_media_check_automatic = FALSE;
file->details->has_permissions = FALSE;
file->details->permissions = 0;
file->details->size = -1;
file->details->sort_order = 0;
file->details->mtime = 0;
file->details->atime = 0;
file->details->ctime = 0;
file->details->trash_time = 0;
g_free (file->details->symlink_name);
file->details->symlink_name = NULL;
eel_ref_str_unref (file->details->mime_type);
file->details->mime_type = NULL;
g_free (file->details->selinux_context);
file->details->selinux_context = NULL;
g_free (file->details->description);
file->details->description = NULL;
eel_ref_str_unref (file->details->owner);
file->details->owner = NULL;
eel_ref_str_unref (file->details->owner_real);
file->details->owner_real = NULL;
eel_ref_str_unref (file->details->group);
file->details->group = NULL;
eel_ref_str_unref (file->details->filesystem_id);
file->details->filesystem_id = NULL;
clear_metadata (file);
}
static NemoFile *
nemo_file_new_from_filename (NemoDirectory *directory,
const char *filename,
gboolean self_owned)
{
NemoFile *file;
g_assert (NEMO_IS_DIRECTORY (directory));
g_assert (filename != NULL);
g_assert (filename[0] != '\0');
if (NEMO_IS_DESKTOP_DIRECTORY (directory)) {
if (self_owned) {
file = NEMO_FILE (g_object_new (NEMO_TYPE_DESKTOP_DIRECTORY_FILE, NULL));
} else {
/* This doesn't normally happen, unless the user somehow types in a uri
* that references a file like this. (See #349840) */
file = NEMO_FILE (g_object_new (NEMO_TYPE_VFS_FILE, NULL));
}
} else if (NEMO_IS_SEARCH_DIRECTORY (directory)) {
if (self_owned) {
file = NEMO_FILE (g_object_new (NEMO_TYPE_SEARCH_DIRECTORY_FILE, NULL));
} else {
/* This doesn't normally happen, unless the user somehow types in a uri
* that references a file like this. (See #349840) */
file = NEMO_FILE (g_object_new (NEMO_TYPE_VFS_FILE, NULL));
}
} else if (g_str_has_suffix (filename, NEMO_SAVED_SEARCH_EXTENSION)) {
file = NEMO_FILE (g_object_new (NEMO_TYPE_SAVED_SEARCH_FILE, NULL));
} else {
file = NEMO_FILE (g_object_new (NEMO_TYPE_VFS_FILE, NULL));
}
file->details->directory = nemo_directory_ref (directory);
file->details->name = eel_ref_str_new (filename);
#ifdef NEMO_FILE_DEBUG_REF
DEBUG_REF_PRINTF("%10p ref'd", file);
#endif
return file;
}
static void
modify_link_hash_table (NemoFile *file,
ModifyListFunction modify_function)
{
char *target_uri;
gboolean found;
gpointer original_key;
GList **list_ptr;
/* Check if there is a symlink name. If none, we are OK. */
if (file->details->symlink_name == NULL) {
return;
}
/* Create the hash table first time through. */
if (symbolic_links == NULL) {
symbolic_links = g_hash_table_new (g_str_hash, g_str_equal);
}
target_uri = nemo_file_get_symbolic_link_target_uri (file);
/* Find the old contents of the hash table. */
found = g_hash_table_lookup_extended
(symbolic_links, target_uri,
&original_key, (gpointer *)&list_ptr);
if (!found) {
list_ptr = g_new0 (GList *, 1);
original_key = g_strdup (target_uri);
g_hash_table_insert (symbolic_links, original_key, list_ptr);
}
(* modify_function) (list_ptr, file);
if (*list_ptr == NULL) {
g_hash_table_remove (symbolic_links, target_uri);
g_free (list_ptr);
g_free (original_key);
}
g_free (target_uri);
}
static void
symbolic_link_weak_notify (gpointer data,
GObject *where_the_object_was)
{
GList **list = data;
/* This really shouldn't happen, but we're seeing some strange things in
bug #358172 where the symlink hashtable isn't correctly updated. */
*list = g_list_remove (*list, where_the_object_was);
}
static void
add_to_link_hash_table_list (GList **list, NemoFile *file)
{
if (g_list_find (*list, file) != NULL) {
g_warning ("Adding file to symlink_table multiple times. "
"Please add feedback of what you were doing at http://bugzilla.gnome.org/show_bug.cgi?id=358172\n");
return;
}
g_object_weak_ref (G_OBJECT (file), symbolic_link_weak_notify, list);
*list = g_list_prepend (*list, file);
}
static void
add_to_link_hash_table (NemoFile *file)
{
modify_link_hash_table (file, add_to_link_hash_table_list);
}
static void
remove_from_link_hash_table_list (GList **list, NemoFile *file)
{
if (g_list_find (*list, file) != NULL) {
g_object_weak_unref (G_OBJECT (file), symbolic_link_weak_notify, list);
*list = g_list_remove (*list, file);
}
}
static void
remove_from_link_hash_table (NemoFile *file)
{
modify_link_hash_table (file, remove_from_link_hash_table_list);
}
NemoFile *
nemo_file_new_from_info (NemoDirectory *directory,
GFileInfo *info)
{
NemoFile *file;
const char *mime_type;
g_return_val_if_fail (NEMO_IS_DIRECTORY (directory), NULL);
g_return_val_if_fail (info != NULL, NULL);
mime_type = g_file_info_get_content_type (info);
if (mime_type &&
strcmp (mime_type, NEMO_SAVED_SEARCH_MIMETYPE) == 0) {
g_file_info_set_file_type (info, G_FILE_TYPE_DIRECTORY);
file = NEMO_FILE (g_object_new (NEMO_TYPE_SAVED_SEARCH_FILE, NULL));
} else {
file = NEMO_FILE (g_object_new (NEMO_TYPE_VFS_FILE, NULL));
}
file->details->directory = nemo_directory_ref (directory);
update_info_and_name (file, info);
#ifdef NEMO_FILE_DEBUG_REF
DEBUG_REF_PRINTF("%10p ref'd", file);
#endif
return file;
}
static NemoFile *
nemo_file_get_internal (GFile *location, gboolean create)
{
gboolean self_owned;
NemoDirectory *directory;
NemoFile *file;
GFile *parent;
char *basename;
g_assert (location != NULL);
parent = g_file_get_parent (location);
self_owned = FALSE;
if (parent == NULL) {
self_owned = TRUE;
parent = g_object_ref (location);
}
/* Get object that represents the directory. */
directory = nemo_directory_get_internal (parent, create);
g_object_unref (parent);
/* Get the name for the file. */
if (self_owned && directory != NULL) {
basename = nemo_directory_get_name_for_self_as_new_file (directory);
} else {
basename = g_file_get_basename (location);
}
/* Check to see if it's a file that's already known. */
if (directory == NULL) {
file = NULL;
} else if (self_owned) {
file = directory->details->as_file;
} else {
file = nemo_directory_find_file_by_name (directory, basename);
}
/* Ref or create the file. */
if (file != NULL) {
nemo_file_ref (file);
} else if (create) {
file = nemo_file_new_from_filename (directory, basename, self_owned);
if (self_owned) {
g_assert (directory->details->as_file == NULL);
directory->details->as_file = file;
} else {
nemo_directory_add_file (directory, file);
}
}
g_free (basename);
nemo_directory_unref (directory);
return file;
}
NemoFile *
nemo_file_get (GFile *location)
{
return nemo_file_get_internal (location, TRUE);
}
NemoFile *
nemo_file_get_existing (GFile *location)
{
return nemo_file_get_internal (location, FALSE);
}
NemoFile *
nemo_file_get_existing_by_uri (const char *uri)
{
GFile *location;
NemoFile *file;
location = g_file_new_for_uri (uri);
file = nemo_file_get_internal (location, FALSE);
g_object_unref (location);
return file;
}
NemoFile *
nemo_file_get_by_uri (const char *uri)
{
GFile *location;
NemoFile *file;
location = g_file_new_for_uri (uri);
file = nemo_file_get_internal (location, TRUE);
g_object_unref (location);
return file;
}
gboolean
nemo_file_is_self_owned (NemoFile *file)
{
return file->details->directory->details->as_file == file;
}
static void
finalize (GObject *object)
{
NemoDirectory *directory;
NemoFile *file;
char *uri;
file = NEMO_FILE (object);
g_assert (file->details->operations_in_progress == NULL);
if (file->details->is_thumbnailing) {
uri = nemo_file_get_uri (file);
nemo_thumbnail_remove_from_queue (uri);
g_free (uri);
}
nemo_async_destroying_file (file);
remove_from_link_hash_table (file);
directory = file->details->directory;
if (nemo_file_is_self_owned (file)) {
directory->details->as_file = NULL;
} else {
if (!file->details->is_gone) {
nemo_directory_remove_file (directory, file);
}
}
if (file->details->get_info_error) {
g_error_free (file->details->get_info_error);
}
nemo_directory_unref (directory);
eel_ref_str_unref (file->details->name);
eel_ref_str_unref (file->details->display_name);
g_free (file->details->display_name_collation_key);
eel_ref_str_unref (file->details->edit_name);
if (file->details->icon) {
g_object_unref (file->details->icon);
}
g_free (file->details->thumbnail_path);
g_free (file->details->symlink_name);
eel_ref_str_unref (file->details->mime_type);
eel_ref_str_unref (file->details->owner);
eel_ref_str_unref (file->details->owner_real);
eel_ref_str_unref (file->details->group);
g_free (file->details->selinux_context);
g_free (file->details->description);
g_free (file->details->top_left_text);
g_free (file->details->activation_uri);
g_clear_object (&file->details->custom_icon);
if (file->details->thumbnail) {
g_object_unref (file->details->thumbnail);
}
if (file->details->mount) {
g_signal_handlers_disconnect_by_func (file->details->mount, file_mount_unmounted, file);
g_object_unref (file->details->mount);
}
eel_ref_str_unref (file->details->filesystem_id);
g_free (file->details->trash_orig_path);
g_list_free_full (file->details->mime_list, g_free);
g_list_free_full (file->details->pending_extension_emblems, g_free);
g_list_free_full (file->details->extension_emblems, g_free);
g_list_free_full (file->details->pending_info_providers, g_object_unref);
if (file->details->pending_extension_attributes) {
g_hash_table_destroy (file->details->pending_extension_attributes);
}
if (file->details->extension_attributes) {
g_hash_table_destroy (file->details->extension_attributes);
}
if (file->details->metadata) {
metadata_hash_free (file->details->metadata);
}
G_OBJECT_CLASS (nemo_file_parent_class)->finalize (object);
}
NemoFile *
nemo_file_ref (NemoFile *file)
{
if (file == NULL) {
return NULL;
}
g_return_val_if_fail (NEMO_IS_FILE (file), NULL);
#ifdef NEMO_FILE_DEBUG_REF
DEBUG_REF_PRINTF("%10p ref'd", file);
#endif
return g_object_ref (file);
}
void
nemo_file_unref (NemoFile *file)
{
if (file == NULL) {
return;
}
g_return_if_fail (NEMO_IS_FILE (file));
#ifdef NEMO_FILE_DEBUG_REF
DEBUG_REF_PRINTF("%10p unref'd", file);
#endif
g_object_unref (file);
}
/**
* nemo_file_get_parent_uri_for_display:
*
* Get the uri for the parent directory.
*
* @file: The file in question.
*
* Return value: A string representing the parent's location,
* formatted for user display (including stripping "file://").
* If the parent is NULL, returns the empty string.
*/
char *
nemo_file_get_parent_uri_for_display (NemoFile *file)
{
GFile *parent;
char *result;
g_assert (NEMO_IS_FILE (file));
parent = nemo_file_get_parent_location (file);
if (parent) {
result = g_file_get_parse_name (parent);
g_object_unref (parent);
} else {
result = g_strdup ("");
}
return result;
}
/**
* nemo_file_get_parent_uri:
*
* Get the uri for the parent directory.
*
* @file: The file in question.
*
* Return value: A string for the parent's location, in "raw URI" form.
* Use nemo_file_get_parent_uri_for_display instead if the
* result is to be displayed on-screen.
* If the parent is NULL, returns the empty string.
*/
char *
nemo_file_get_parent_uri (NemoFile *file)
{
g_assert (NEMO_IS_FILE (file));
if (nemo_file_is_self_owned (file)) {
/* Callers expect an empty string, not a NULL. */
return g_strdup ("");
}
return nemo_directory_get_uri (file->details->directory);
}
GFile *
nemo_file_get_parent_location (NemoFile *file)
{
g_assert (NEMO_IS_FILE (file));
if (nemo_file_is_self_owned (file)) {
/* Callers expect an empty string, not a NULL. */
return NULL;
}
return nemo_directory_get_location (file->details->directory);
}
NemoFile *
nemo_file_get_parent (NemoFile *file)
{
g_assert (NEMO_IS_FILE (file));
if (nemo_file_is_self_owned (file)) {
return NULL;
}
return nemo_directory_get_corresponding_file (file->details->directory);
}
/**
* nemo_file_can_read:
*
* Check whether the user is allowed to read the contents of this file.
*
* @file: The file to check.
*
* Return value: FALSE if the user is definitely not allowed to read
* the contents of the file. If the user has read permission, or
* the code can't tell whether the user has read permission,
* returns TRUE (so failures must always be handled).
*/
gboolean
nemo_file_can_read (NemoFile *file)
{
g_return_val_if_fail (NEMO_IS_FILE (file), FALSE);
return file->details->can_read;
}
/**
* nemo_file_can_write:
*
* Check whether the user is allowed to write to this file.
*
* @file: The file to check.
*
* Return value: FALSE if the user is definitely not allowed to write
* to the file. If the user has write permission, or
* the code can't tell whether the user has write permission,
* returns TRUE (so failures must always be handled).
*/
gboolean
nemo_file_can_write (NemoFile *file)
{
g_return_val_if_fail (NEMO_IS_FILE (file), FALSE);
return file->details->can_write;
}
/**
* nemo_file_can_execute:
*
* Check whether the user is allowed to execute this file.
*
* @file: The file to check.
*
* Return value: FALSE if the user is definitely not allowed to execute
* the file. If the user has execute permission, or