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Functions
Description
GBookmarkFile lets you parse, edit or create files containing bookmarks to URI, along with some meta-data about the resource pointed by the URI like its MIME type, the application that is registering the bookmark and the icon that should be used to represent the bookmark. The data is stored using the Desktop Bookmark Specification.
The syntax of the bookmark files is described in detail inside the
Desktop Bookmark Specification, here is a quick summary: bookmark
files use a sub-class of the XML Bookmark Exchange Language
specification, consisting of valid UTF-8 encoded XML, under the
<xbel> root element; each bookmark is stored inside a
<bookmark> element, using its URI: no relative paths can
be used inside a bookmark file. The bookmark may have a user defined
title and description, to be used instead of the URI. Under the
<metadata> element, with its owner attribute set to
http://freedesktop.org
, is stored the meta-data about a resource
pointed by its URI. The meta-data consists of the resource's MIME
type; the applications that have registered a bookmark; the groups
to which a bookmark belongs to; a visibility flag, used to set the
bookmark as "private" to the applications and groups that has it
registered; the URI and MIME type of an icon, to be used when
displaying the bookmark inside a GUI.
Here is an example of a bookmark file: bookmarks.xbel
A bookmark file might contain more than one bookmark; each bookmark is accessed through its URI.
The important caveat of bookmark files is that when you add a new
bookmark you must also add the application that is registering it, using
g_bookmark_file_add_application()
or g_bookmark_file_set_app_info()
.
If a bookmark has no applications then it won't be dumped when creating
the on disk representation, using g_bookmark_file_to_data()
or
g_bookmark_file_to_file()
.
The GBookmarkFile parser was added in GLib 2.12.
Functions
g_bookmark_file_new ()
GBookmarkFile *
g_bookmark_file_new (void
);
Creates a new empty GBookmarkFile object.
Use g_bookmark_file_load_from_file()
, g_bookmark_file_load_from_data()
or g_bookmark_file_load_from_data_dirs()
to read an existing bookmark
file.
Since 2.12
g_bookmark_file_free ()
void
g_bookmark_file_free (GBookmarkFile *bookmark
);
Frees a GBookmarkFile.
Since 2.12
g_bookmark_file_load_from_file ()
gboolean g_bookmark_file_load_from_file (GBookmarkFile *bookmark
,const gchar *filename
,GError **error
);
Loads a desktop bookmark file into an empty GBookmarkFile structure.
If the file could not be loaded then error
is set to either a GFileError
or GBookmarkFileError.
Parameters
bookmark |
an empty GBookmarkFile struct |
|
filename |
the path of a filename to load, in the GLib file name encoding |
|
error |
Since 2.12
g_bookmark_file_load_from_data ()
gboolean g_bookmark_file_load_from_data (GBookmarkFile *bookmark
,const gchar *data
,gsize length
,GError **error
);
Loads a bookmark file from memory into an empty GBookmarkFile
structure. If the object cannot be created then error
is set to a
GBookmarkFileError.
Parameters
bookmark |
an empty GBookmarkFile struct |
|
data |
desktop bookmarks loaded in memory |
|
length |
the length of |
|
error |
Since 2.12
g_bookmark_file_load_from_data_dirs ()
gboolean g_bookmark_file_load_from_data_dirs (GBookmarkFile *bookmark
,const gchar *file
,gchar **full_path
,GError **error
);
This function looks for a desktop bookmark file named file
in the
paths returned from g_get_user_data_dir()
and g_get_system_data_dirs()
,
loads the file into bookmark
and returns the file's full path in
full_path
. If the file could not be loaded then an error
is
set to either a GFileError or GBookmarkFileError.
Parameters
bookmark |
||
file |
a relative path to a filename to open and parse |
|
full_path |
return location for a string containing the full path
of the file, or |
[allow-none] |
error |
Since 2.12
g_bookmark_file_to_data ()
gchar * g_bookmark_file_to_data (GBookmarkFile *bookmark
,gsize *length
,GError **error
);
This function outputs bookmark
as a string.
Parameters
bookmark |
||
length |
return location for the length of the returned string, or |
[allow-none][out] |
error |
Since 2.12
g_bookmark_file_to_file ()
gboolean g_bookmark_file_to_file (GBookmarkFile *bookmark
,const gchar *filename
,GError **error
);
This function outputs bookmark
into a file. The write process is
guaranteed to be atomic by using g_file_set_contents()
internally.
Since 2.12
g_bookmark_file_has_item ()
gboolean g_bookmark_file_has_item (GBookmarkFile *bookmark
,const gchar *uri
);
Looks whether the desktop bookmark has an item with its URI set to uri
.
Since 2.12
g_bookmark_file_has_group ()
gboolean g_bookmark_file_has_group (GBookmarkFile *bookmark
,const gchar *uri
,const gchar *group
,GError **error
);
Checks whether group
appears in the list of groups to which
the bookmark for uri
belongs to.
In the event the URI cannot be found, FALSE
is returned and
error
is set to G_BOOKMARK_FILE_ERROR_URI_NOT_FOUND.
Since 2.12
g_bookmark_file_has_application ()
gboolean g_bookmark_file_has_application (GBookmarkFile *bookmark
,const gchar *uri
,const gchar *name
,GError **error
);
Checks whether the bookmark for uri
inside bookmark
has been
registered by application name
.
In the event the URI cannot be found, FALSE
is returned and
error
is set to G_BOOKMARK_FILE_ERROR_URI_NOT_FOUND.
Since 2.12
g_bookmark_file_get_size ()
gint
g_bookmark_file_get_size (GBookmarkFile *bookmark
);
Gets the number of bookmarks inside bookmark
.
Since 2.12
g_bookmark_file_get_uris ()
gchar ** g_bookmark_file_get_uris (GBookmarkFile *bookmark
,gsize *length
);
Returns all URIs of the bookmarks in the bookmark file bookmark
.
The array of returned URIs will be NULL
-terminated, so length
may
optionally be NULL
.
Parameters
bookmark |
||
length |
return location for the number of returned URIs, or |
[allow-none][out] |
Returns
a newly allocated NULL
-terminated array of strings.
Use g_strfreev()
to free it.
[array length=length][transfer full]
Since 2.12
g_bookmark_file_get_title ()
gchar * g_bookmark_file_get_title (GBookmarkFile *bookmark
,const gchar *uri
,GError **error
);
Returns the title of the bookmark for uri
.
If uri
is NULL
, the title of bookmark
is returned.
In the event the URI cannot be found, NULL
is returned and
error
is set to G_BOOKMARK_FILE_ERROR_URI_NOT_FOUND.
Since 2.12
g_bookmark_file_get_description ()
gchar * g_bookmark_file_get_description (GBookmarkFile *bookmark
,const gchar *uri
,GError **error
);
Retrieves the description of the bookmark for uri
.
In the event the URI cannot be found, NULL
is returned and
error
is set to G_BOOKMARK_FILE_ERROR_URI_NOT_FOUND.
Since 2.12
g_bookmark_file_get_mime_type ()
gchar * g_bookmark_file_get_mime_type (GBookmarkFile *bookmark
,const gchar *uri
,GError **error
);
Retrieves the MIME type of the resource pointed by uri
.
In the event the URI cannot be found, NULL
is returned and
error
is set to G_BOOKMARK_FILE_ERROR_URI_NOT_FOUND. In the
event that the MIME type cannot be found, NULL
is returned and
error
is set to G_BOOKMARK_FILE_ERROR_INVALID_VALUE.
Since 2.12
g_bookmark_file_get_is_private ()
gboolean g_bookmark_file_get_is_private (GBookmarkFile *bookmark
,const gchar *uri
,GError **error
);
Gets whether the private flag of the bookmark for uri
is set.
In the event the URI cannot be found, FALSE
is returned and
error
is set to G_BOOKMARK_FILE_ERROR_URI_NOT_FOUND. In the
event that the private flag cannot be found, FALSE
is returned and
error
is set to G_BOOKMARK_FILE_ERROR_INVALID_VALUE.
Since 2.12
g_bookmark_file_get_icon ()
gboolean g_bookmark_file_get_icon (GBookmarkFile *bookmark
,const gchar *uri
,gchar **href
,gchar **mime_type
,GError **error
);
Gets the icon of the bookmark for uri
.
In the event the URI cannot be found, FALSE
is returned and
error
is set to G_BOOKMARK_FILE_ERROR_URI_NOT_FOUND.
Parameters
Returns
TRUE
if the icon for the bookmark for the URI was found.
You should free the returned strings.
Since 2.12
g_bookmark_file_get_added ()
time_t g_bookmark_file_get_added (GBookmarkFile *bookmark
,const gchar *uri
,GError **error
);
Gets the time the bookmark for uri
was added to bookmark
In the event the URI cannot be found, -1 is returned and
error
is set to G_BOOKMARK_FILE_ERROR_URI_NOT_FOUND.
Since 2.12
g_bookmark_file_get_modified ()
time_t g_bookmark_file_get_modified (GBookmarkFile *bookmark
,const gchar *uri
,GError **error
);
Gets the time when the bookmark for uri
was last modified.
In the event the URI cannot be found, -1 is returned and
error
is set to G_BOOKMARK_FILE_ERROR_URI_NOT_FOUND.
Since 2.12
g_bookmark_file_get_visited ()
time_t g_bookmark_file_get_visited (GBookmarkFile *bookmark
,const gchar *uri
,GError **error
);
Gets the time the bookmark for uri
was last visited.
In the event the URI cannot be found, -1 is returned and
error
is set to G_BOOKMARK_FILE_ERROR_URI_NOT_FOUND.
Since 2.12
g_bookmark_file_get_groups ()
gchar ** g_bookmark_file_get_groups (GBookmarkFile *bookmark
,const gchar *uri
,gsize *length
,GError **error
);
Retrieves the list of group names of the bookmark for uri
.
In the event the URI cannot be found, NULL
is returned and
error
is set to G_BOOKMARK_FILE_ERROR_URI_NOT_FOUND.
The returned array is NULL
terminated, so length
may optionally
be NULL
.
Parameters
bookmark |
||
uri |
a valid URI |
|
length |
return location for the length of the returned string, or |
[allow-none][out] |
error |
Returns
a newly allocated NULL
-terminated array of group names.
Use g_strfreev()
to free it.
[array length=length][transfer full]
Since 2.12
g_bookmark_file_get_applications ()
gchar ** g_bookmark_file_get_applications (GBookmarkFile *bookmark
,const gchar *uri
,gsize *length
,GError **error
);
Retrieves the names of the applications that have registered the
bookmark for uri
.
In the event the URI cannot be found, NULL
is returned and
error
is set to G_BOOKMARK_FILE_ERROR_URI_NOT_FOUND.
Parameters
bookmark |
||
uri |
a valid URI |
|
length |
return location of the length of the returned list, or |
[allow-none][out] |
error |
Returns
a newly allocated NULL
-terminated array of strings.
Use g_strfreev()
to free it.
[array length=length][transfer full]
Since 2.12
g_bookmark_file_get_app_info ()
gboolean g_bookmark_file_get_app_info (GBookmarkFile *bookmark
,const gchar *uri
,const gchar *name
,gchar **exec
,guint *count
,time_t *stamp
,GError **error
);
Gets the registration informations of app_name
for the bookmark for
uri
. See g_bookmark_file_set_app_info()
for more informations about
the returned data.
The string returned in app_exec
must be freed.
In the event the URI cannot be found, FALSE
is returned and
error
is set to G_BOOKMARK_FILE_ERROR_URI_NOT_FOUND. In the
event that no application with name app_name
has registered a bookmark
for uri
, FALSE
is returned and error is set to
G_BOOKMARK_FILE_ERROR_APP_NOT_REGISTERED. In the event that unquoting
the command line fails, an error of the G_SHELL_ERROR domain is
set and FALSE
is returned.
Parameters
bookmark |
||
uri |
a valid URI |
|
name |
an application's name |
|
exec |
return location for the command line of the application, or |
[allow-none][out] |
count |
return location for the registration count, or |
[allow-none][out] |
stamp |
return location for the last registration time, or |
[allow-none][out] |
error |
Since 2.12
g_bookmark_file_set_title ()
void g_bookmark_file_set_title (GBookmarkFile *bookmark
,const gchar *uri
,const gchar *title
);
Sets title
as the title of the bookmark for uri
inside the
bookmark file bookmark
.
If uri
is NULL
, the title of bookmark
is set.
If a bookmark for uri
cannot be found then it is created.
Since 2.12
g_bookmark_file_set_description ()
void g_bookmark_file_set_description (GBookmarkFile *bookmark
,const gchar *uri
,const gchar *description
);
Sets description
as the description of the bookmark for uri
.
If uri
is NULL
, the description of bookmark
is set.
If a bookmark for uri
cannot be found then it is created.
Since 2.12
g_bookmark_file_set_mime_type ()
void g_bookmark_file_set_mime_type (GBookmarkFile *bookmark
,const gchar *uri
,const gchar *mime_type
);
Sets mime_type
as the MIME type of the bookmark for uri
.
If a bookmark for uri
cannot be found then it is created.
Since 2.12
g_bookmark_file_set_is_private ()
void g_bookmark_file_set_is_private (GBookmarkFile *bookmark
,const gchar *uri
,gboolean is_private
);
Sets the private flag of the bookmark for uri
.
If a bookmark for uri
cannot be found then it is created.
Since 2.12
g_bookmark_file_set_icon ()
void g_bookmark_file_set_icon (GBookmarkFile *bookmark
,const gchar *uri
,const gchar *href
,const gchar *mime_type
);
Sets the icon for the bookmark for uri
. If href
is NULL
, unsets
the currently set icon. href
can either be a full URL for the icon
file or the icon name following the Icon Naming specification.
If no bookmark for uri
is found one is created.
Parameters
bookmark |
||
uri |
a valid URI |
|
href |
the URI of the icon for the bookmark, or |
[allow-none] |
mime_type |
the MIME type of the icon for the bookmark |
Since 2.12
g_bookmark_file_set_added ()
void g_bookmark_file_set_added (GBookmarkFile *bookmark
,const gchar *uri
,time_t added
);
Sets the time the bookmark for uri
was added into bookmark
.
If no bookmark for uri
is found then it is created.
Since 2.12
g_bookmark_file_set_groups ()
void g_bookmark_file_set_groups (GBookmarkFile *bookmark
,const gchar *uri
,const gchar **groups
,gsize length
);
Sets a list of group names for the item with URI uri
. Each previously
set group name list is removed.
If uri
cannot be found then an item for it is created.
Parameters
bookmark |
||
uri |
an item's URI |
|
groups |
an array of group names, or |
[allow-none] |
length |
number of group name values in |
Since 2.12
g_bookmark_file_set_modified ()
void g_bookmark_file_set_modified (GBookmarkFile *bookmark
,const gchar *uri
,time_t modified
);
Sets the last time the bookmark for uri
was last modified.
If no bookmark for uri
is found then it is created.
The "modified" time should only be set when the bookmark's meta-data
was actually changed. Every function of GBookmarkFile that
modifies a bookmark also changes the modification time, except for
g_bookmark_file_set_visited()
.
Since 2.12
g_bookmark_file_set_visited ()
void g_bookmark_file_set_visited (GBookmarkFile *bookmark
,const gchar *uri
,time_t visited
);
Sets the time the bookmark for uri
was last visited.
If no bookmark for uri
is found then it is created.
The "visited" time should only be set if the bookmark was launched,
either using the command line retrieved by g_bookmark_file_get_app_info()
or by the default application for the bookmark's MIME type, retrieved
using g_bookmark_file_get_mime_type()
. Changing the "visited" time
does not affect the "modified" time.
Since 2.12
g_bookmark_file_set_app_info ()
gboolean g_bookmark_file_set_app_info (GBookmarkFile *bookmark
,const gchar *uri
,const gchar *name
,const gchar *exec
,gint count
,time_t stamp
,GError **error
);
Sets the meta-data of application name
inside the list of
applications that have registered a bookmark for uri
inside
bookmark
.
You should rarely use this function; use g_bookmark_file_add_application()
and g_bookmark_file_remove_application()
instead.
name
can be any UTF-8 encoded string used to identify an
application.
exec
can have one of these two modifiers: "%f", which will
be expanded as the local file name retrieved from the bookmark's
URI; "%u", which will be expanded as the bookmark's URI.
The expansion is done automatically when retrieving the stored
command line using the g_bookmark_file_get_app_info()
function.
count
is the number of times the application has registered the
bookmark; if is < 0, the current registration count will be increased
by one, if is 0, the application with name
will be removed from
the list of registered applications.
stamp
is the Unix time of the last registration; if it is -1, the
current time will be used.
If you try to remove an application by setting its registration count to
zero, and no bookmark for uri
is found, FALSE
is returned and
error
is set to G_BOOKMARK_FILE_ERROR_URI_NOT_FOUND; similarly,
in the event that no application name
has registered a bookmark
for uri
, FALSE
is returned and error is set to
G_BOOKMARK_FILE_ERROR_APP_NOT_REGISTERED. Otherwise, if no bookmark
for uri
is found, one is created.
Parameters
bookmark |
||
uri |
a valid URI |
|
name |
an application's name |
|
exec |
an application's command line |
|
count |
the number of registrations done for this application |
|
stamp |
the time of the last registration for this application |
|
error |
Since 2.12
g_bookmark_file_add_group ()
void g_bookmark_file_add_group (GBookmarkFile *bookmark
,const gchar *uri
,const gchar *group
);
Adds group
to the list of groups to which the bookmark for uri
belongs to.
If no bookmark for uri
is found then it is created.
Since 2.12
g_bookmark_file_add_application ()
void g_bookmark_file_add_application (GBookmarkFile *bookmark
,const gchar *uri
,const gchar *name
,const gchar *exec
);
Adds the application with name
and exec
to the list of
applications that have registered a bookmark for uri
into
bookmark
.
Every bookmark inside a GBookmarkFile must have at least an application registered. Each application must provide a name, a command line useful for launching the bookmark, the number of times the bookmark has been registered by the application and the last time the application registered this bookmark.
If name
is NULL
, the name of the application will be the
same returned by g_get_application_name()
; if exec
is NULL
, the
command line will be a composition of the program name as
returned by g_get_prgname()
and the "%u" modifier, which will be
expanded to the bookmark's URI.
This function will automatically take care of updating the
registrations count and timestamping in case an application
with the same name
had already registered a bookmark for
uri
inside bookmark
.
If no bookmark for uri
is found, one is created.
Parameters
Since 2.12
g_bookmark_file_remove_group ()
gboolean g_bookmark_file_remove_group (GBookmarkFile *bookmark
,const gchar *uri
,const gchar *group
,GError **error
);
Removes group
from the list of groups to which the bookmark
for uri
belongs to.
In the event the URI cannot be found, FALSE
is returned and
error
is set to G_BOOKMARK_FILE_ERROR_URI_NOT_FOUND.
In the event no group was defined, FALSE
is returned and
error
is set to G_BOOKMARK_FILE_ERROR_INVALID_VALUE.
Since 2.12
g_bookmark_file_remove_application ()
gboolean g_bookmark_file_remove_application (GBookmarkFile *bookmark
,const gchar *uri
,const gchar *name
,GError **error
);
Removes application registered with name
from the list of applications
that have registered a bookmark for uri
inside bookmark
.
In the event the URI cannot be found, FALSE
is returned and
error
is set to G_BOOKMARK_FILE_ERROR_URI_NOT_FOUND.
In the event that no application with name app_name
has registered
a bookmark for uri
, FALSE
is returned and error is set to
G_BOOKMARK_FILE_ERROR_APP_NOT_REGISTERED.
Since 2.12
g_bookmark_file_remove_item ()
gboolean g_bookmark_file_remove_item (GBookmarkFile *bookmark
,const gchar *uri
,GError **error
);
Removes the bookmark for uri
from the bookmark file bookmark
.
Since 2.12
g_bookmark_file_move_item ()
gboolean g_bookmark_file_move_item (GBookmarkFile *bookmark
,const gchar *old_uri
,const gchar *new_uri
,GError **error
);
Changes the URI of a bookmark item from old_uri
to new_uri
. Any
existing bookmark for new_uri
will be overwritten. If new_uri
is
NULL
, then the bookmark is removed.
In the event the URI cannot be found, FALSE
is returned and
error
is set to G_BOOKMARK_FILE_ERROR_URI_NOT_FOUND.
Since 2.12
Types and Values
GBookmarkFile
typedef struct _GBookmarkFile GBookmarkFile;
The GBookmarkFile
structure contains only
private data and should not be directly accessed.
G_BOOKMARK_FILE_ERROR
#define G_BOOKMARK_FILE_ERROR (g_bookmark_file_error_quark ())
Error domain for bookmark file parsing. Errors in this domain will be from the GBookmarkFileError enumeration. See GError for information on error domains.
enum GBookmarkFileError
Error codes returned by bookmark file parsing.