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Add extension point for adding metadata for local files

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This adds a local_file_add_info vfunc to GVfs that vfs implementations
can override to add metadata for local files.
This commit is contained in:
Alexander Larsson 2009-06-18 09:05:27 +02:00
parent 9a6146f54c
commit 7662c86611
5 changed files with 175 additions and 39 deletions
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75
gio/glocalfile.c
View File

@ -110,7 +110,7 @@
static void g_local_file_file_iface_init (GFileIface *iface);
static GFileAttributeInfoList *local_writable_attributes = NULL;
static GFileAttributeInfoList *local_writable_namespaces = NULL;
static /* GFileAttributeInfoList * */ gsize local_writable_namespaces = 0;
struct _GLocalFile
{
@ -201,24 +201,6 @@ g_local_file_class_init (GLocalFileClass *klass)
#endif
local_writable_attributes = list;
/* Writable namespaces: */
list = g_file_attribute_info_list_new ();
#ifdef HAVE_XATTR
g_file_attribute_info_list_add (list,
"xattr",
G_FILE_ATTRIBUTE_TYPE_STRING,
G_FILE_ATTRIBUTE_INFO_COPY_WITH_FILE |
G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED);
g_file_attribute_info_list_add (list,
"xattr-sys",
G_FILE_ATTRIBUTE_TYPE_STRING,
G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED);
#endif
local_writable_namespaces = list;
}
static void
@ -1204,6 +1186,8 @@ g_local_file_query_info (GFile *file,
matcher, flags, &parent_info,
error);
_g_local_file_info_free_parent_info (&parent_info);
g_free (basename);
g_file_attribute_matcher_unref (matcher);
@ -1224,7 +1208,38 @@ g_local_file_query_writable_namespaces (GFile *file,
GCancellable *cancellable,
GError **error)
{
return g_file_attribute_info_list_ref (local_writable_namespaces);
GFileAttributeInfoList *list;
GVfsClass *class;
GVfs *vfs;
if (g_once_init_enter (&local_writable_namespaces))
{
/* Writable namespaces: */
list = g_file_attribute_info_list_new ();
#ifdef HAVE_XATTR
g_file_attribute_info_list_add (list,
"xattr",
G_FILE_ATTRIBUTE_TYPE_STRING,
G_FILE_ATTRIBUTE_INFO_COPY_WITH_FILE |
G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED);
g_file_attribute_info_list_add (list,
"xattr-sys",
G_FILE_ATTRIBUTE_TYPE_STRING,
G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED);
#endif
vfs = g_vfs_get_default ();
class = G_VFS_GET_CLASS (vfs);
if (class->add_writable_namespaces)
class->add_writable_namespaces (vfs, list);
g_once_init_leave (&local_writable_namespaces, (gsize)list);
}
list = (GFileAttributeInfoList *)local_writable_namespaces;
return g_file_attribute_info_list_ref (list);
}
static gboolean
@ -1409,7 +1424,9 @@ g_local_file_delete (GFile *file,
GError **error)
{
GLocalFile *local = G_LOCAL_FILE (file);
GVfsClass *class;
GVfs *vfs;
if (g_remove (local->filename) == -1)
{
int errsv = errno;
@ -1426,7 +1443,12 @@ g_local_file_delete (GFile *file,
g_strerror (errsv));
return FALSE;
}
vfs = g_vfs_get_default ();
class = G_VFS_GET_CLASS (vfs);
if (class->local_file_removed)
class->local_file_removed (vfs, local->filename);
return TRUE;
}
@ -2176,7 +2198,9 @@ g_local_file_move (GFile *source,
char *backup_name;
int res;
off_t source_size;
GVfsClass *class;
GVfs *vfs;
if (!G_IS_LOCAL_FILE (source) ||
!G_IS_LOCAL_FILE (destination))
{
@ -2294,6 +2318,11 @@ g_local_file_move (GFile *source,
return FALSE;
}
vfs = g_vfs_get_default ();
class = G_VFS_GET_CLASS (vfs);
if (class->local_file_moved)
class->local_file_moved (vfs, local_source->filename, local_destination->filename);
/* Make sure we send full copied size */
if (progress_callback)
progress_callback (source_size, source_size, progress_callback_data);

2
gio/glocalfileenumerator.c
View File

@ -116,6 +116,8 @@ g_local_file_enumerator_finalize (GObject *object)
local = G_LOCAL_FILE_ENUMERATOR (object);
if (local->got_parent_info)
_g_local_file_info_free_parent_info (&local->parent_info);
g_free (local->filename);
g_file_attribute_matcher_unref (local->matcher);
if (local->dir)

108
gio/glocalfileinfo.c
View File

@ -60,6 +60,7 @@
#include <glib/gstdio.h>
#include <gfileattribute-priv.h>
#include <gvfs.h>
#include "glibintl.h"
@ -791,7 +792,9 @@ _g_local_file_info_get_parent_info (const char *dir,
*/
struct stat statbuf;
int res;
parent_info->extra_data = NULL;
parent_info->free_extra_data = NULL;
parent_info->writable = FALSE;
parent_info->is_sticky = FALSE;
parent_info->has_trash_dir = FALSE;
@ -833,6 +836,14 @@ _g_local_file_info_get_parent_info (const char *dir,
}
}
void
_g_local_file_info_free_parent_info (GLocalParentFileInfo *parent_info)
{
if (parent_info->extra_data &&
parent_info->free_extra_data)
parent_info->free_extra_data (parent_info->extra_data);
}
static void
get_access_rights (GFileAttributeMatcher *attribute_matcher,
GFileInfo *info,
@ -1417,6 +1428,9 @@ _g_local_file_info_get (const char *basename,
#ifdef G_OS_WIN32
DWORD dos_attributes;
#endif
char *symlink_target;
GVfs *vfs;
GVfsClass *class;
info = g_file_info_new ();
@ -1514,16 +1528,15 @@ _g_local_file_info_get (const char *basename,
g_file_info_set_attribute_boolean (info, G_FILE_ATTRIBUTE_DOS_IS_SYSTEM, TRUE);
#endif
#ifdef S_ISLNK
if (is_symlink &&
g_file_attribute_matcher_matches (attribute_matcher,
G_FILE_ATTRIBUTE_STANDARD_SYMLINK_TARGET))
symlink_target = NULL;
if (is_symlink)
{
char *link = read_link (path);
g_file_info_set_symlink_target (info, link);
g_free (link);
symlink_target = read_link (path);
if (symlink_target &&
g_file_attribute_matcher_matches (attribute_matcher,
G_FILE_ATTRIBUTE_STANDARD_SYMLINK_TARGET))
g_file_info_set_symlink_target (info, symlink_target);
}
#endif
if (g_file_attribute_matcher_matches (attribute_matcher,
G_FILE_ATTRIBUTE_STANDARD_DISPLAY_NAME))
@ -1689,9 +1702,34 @@ _g_local_file_info_get (const char *basename,
if (g_file_attribute_matcher_matches (attribute_matcher,
G_FILE_ATTRIBUTE_THUMBNAIL_PATH))
get_thumbnail_attributes (path, info);
vfs = g_vfs_get_default ();
class = G_VFS_GET_CLASS (vfs);
if (class->local_file_add_info)
{
const char *extra_target;
extra_target = path;
if (!(flags & G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS) &&
is_symlink &&
!symlink_broken &&
symlink_target != NULL)
extra_target = symlink_target;
class->local_file_add_info (vfs,
extra_target,
statbuf.st_dev,
attribute_matcher,
info,
NULL,
&parent_info->extra_data,
&parent_info->free_extra_data);
}
g_file_info_unset_attribute_mask (info);
g_free (symlink_target);
return info;
}
@ -2126,6 +2164,8 @@ _g_local_file_info_set_attribute (char *filename,
GError **error)
{
GFileAttributeValue value = { 0 };
GVfsClass *class;
GVfs *vfs;
_g_file_attribute_value_set_from_pointer (&value, type, value_p, FALSE);
@ -2166,7 +2206,36 @@ _g_local_file_info_set_attribute (char *filename,
else if (strcmp (attribute, G_FILE_ATTRIBUTE_SELINUX_CONTEXT) == 0)
return set_selinux_context (filename, &value, error);
#endif
vfs = g_vfs_get_default ();
class = G_VFS_GET_CLASS (vfs);
if (class->local_file_set_attributes)
{
GFileInfo *info;
info = g_file_info_new ();
g_file_info_set_attribute (info,
attribute,
type,
value_p);
if (!class->local_file_set_attributes (vfs, filename,
info,
flags, cancellable,
error))
{
g_object_unref (info);
return FALSE;
}
if (g_file_info_get_attribute_status (info, attribute) == G_FILE_ATTRIBUTE_STATUS_SET)
{
g_object_unref (info);
return TRUE;
}
g_object_unref (info);
}
g_set_error (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED,
_("Setting attribute %s not supported"), attribute);
return FALSE;
@ -2190,6 +2259,8 @@ _g_local_file_info_set_attributes (char *filename,
GFileAttributeStatus status;
#endif
gboolean res;
GVfsClass *class;
GVfs *vfs;
/* Handles setting multiple specified data in a single set, and takes care
of ordering restrictions when setting attributes */
@ -2310,5 +2381,20 @@ _g_local_file_info_set_attributes (char *filename,
}
#endif
vfs = g_vfs_get_default ();
class = G_VFS_GET_CLASS (vfs);
if (class->local_file_set_attributes)
{
if (!class->local_file_set_attributes (vfs, filename,
info,
flags, cancellable,
error))
{
res = FALSE;
/* Don't set error multiple times */
error = NULL;
}
}
return res;
}

3
gio/glocalfileinfo.h
View File

@ -39,6 +39,8 @@ typedef struct
gboolean has_trash_dir;
int owner;
dev_t device;
gpointer extra_data;
GDestroyNotify free_extra_data;
} GLocalParentFileInfo;
#ifdef G_OS_WIN32
@ -53,6 +55,7 @@ gboolean _g_local_file_has_trash_dir (const char *dirname,
void _g_local_file_info_get_parent_info (const char *dir,
GFileAttributeMatcher *attribute_matcher,
GLocalParentFileInfo *parent_info);
void _g_local_file_info_free_parent_info (GLocalParentFileInfo *parent_info);
GFileInfo *_g_local_file_info_get (const char *basename,
const char *path,
GFileAttributeMatcher *attribute_matcher,

26
gio/gvfs.h
View File

@ -75,6 +75,27 @@ struct _GVfsClass
/*< private >*/
/* Padding for future expansion */
void (* local_file_add_info) (GVfs *vfs,
const char *filename,
guint64 device,
GFileAttributeMatcher *attribute_matcher,
GFileInfo *info,
GCancellable *cancellable,
gpointer *extra_data,
GDestroyNotify *free_extra_data);
void (* add_writable_namespaces) (GVfs *vfs,
GFileAttributeInfoList *list);
gboolean (* local_file_set_attributes) (GVfs *vfs,
const char *filename,
GFileInfo *info,
GFileQueryInfoFlags flags,
GCancellable *cancellable,
GError **error);
void (* local_file_removed) (GVfs *vfs,
const char *filename);
void (* local_file_moved) (GVfs *vfs,
const char *source,
const char *dest);
void (*_g_reserved1) (void);
void (*_g_reserved2) (void);
void (*_g_reserved3) (void);
@ -82,11 +103,6 @@ struct _GVfsClass
void (*_g_reserved5) (void);
void (*_g_reserved6) (void);
void (*_g_reserved7) (void);
void (*_g_reserved8) (void);
void (*_g_reserved9) (void);
void (*_g_reserved10) (void);
void (*_g_reserved11) (void);
void (*_g_reserved12) (void);
};
GType g_vfs_get_type (void) G_GNUC_CONST;