BookmarkFile

Added in version 2.12.

class BookmarkFile(**kwargs)

GBookmarkFile lets you parse, edit or create files containing bookmarks.

Bookmarks refer to a 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 add_application or set_application_info. If a bookmark has no applications then it won’t be dumped when creating the on disk representation, using to_data or to_file.

Constructors

class BookmarkFile

classmethod new() → BookmarkFile

Creates a new empty BookmarkFile object.

Use load_from_file(), load_from_data() or load_from_data_dirs() to read an existing bookmark file.

Added in version 2.12.

Methods

class BookmarkFile

add_application(uri: str, name: str | None = None, exec: str | None = None) → None

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 BookmarkFile 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 None, the name of the application will be the same returned by get_application_name(); if exec is None, the command line will be a composition of the program name as returned by 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.

Added in version 2.12.

Parameters:

uri – a valid URI
name – the name of the application registering the bookmark or None
exec – command line to be used to launch the bookmark or None

add_group(uri: str, group: str) → None

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.

Added in version 2.12.

Parameters:

uri – a valid URI
group – the group name to be added

error_quark() → int

free() → None: Frees a BookmarkFile.

Added in version 2.12.

get_added(uri: str) → int

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 URI_NOT_FOUND.

Added in version 2.12.

Deprecated since version 2.66: Use get_added_date_time() instead, as time_t is deprecated due to the year 2038 problem.

Parameters:: uri – a valid URI

get_added_date_time(uri: str) → DateTime

Gets the time the bookmark for uri was added to bookmark

In the event the URI cannot be found, None is returned and error is set to URI_NOT_FOUND.

Added in version 2.66.

Parameters:: uri – a valid URI

get_app_info(uri: str, name: str) → tuple[bool, str, int, int]

Gets the registration information of app_name for the bookmark for uri. See set_application_info() for more information 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 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 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.

Added in version 2.12.

Deprecated since version 2.66: Use get_application_info() instead, as time_t is deprecated due to the year 2038 problem.

Parameters:

uri – a valid URI
name – an application’s name

get_application_info(uri: str, name: str) → tuple[bool, str, int, DateTime]

Gets the registration information of app_name for the bookmark for uri. See set_application_info() for more information about the returned data.

The string returned in app_exec must be freed.

Added in version 2.66.

Parameters:

uri – a valid URI
name – an application’s name

get_applications(uri: str) → list[str]

Retrieves the names of the applications that have registered the bookmark for uri.

In the event the URI cannot be found, None is returned and error is set to URI_NOT_FOUND.

Added in version 2.12.

Parameters:: uri – a valid URI

get_description(uri: str) → str

Retrieves the description of the bookmark for uri.

In the event the URI cannot be found, None is returned and error is set to URI_NOT_FOUND.

Added in version 2.12.

Parameters:: uri – a valid URI

get_groups(uri: str) → list[str]

Retrieves the list of group names of the bookmark for uri.

In the event the URI cannot be found, None is returned and error is set to URI_NOT_FOUND.

The returned array is None terminated, so length may optionally be None.

Added in version 2.12.

Parameters:: uri – a valid URI

get_icon(uri: str) → tuple[bool, str, str]

Gets the icon of the bookmark for uri.

In the event the URI cannot be found, False is returned and error is set to URI_NOT_FOUND.

Added in version 2.12.

Parameters:: uri – a valid URI

get_is_private(uri: str) → bool

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 URI_NOT_FOUND. In the event that the private flag cannot be found, False is returned and error is set to INVALID_VALUE.

Added in version 2.12.

Parameters:: uri – a valid URI

get_mime_type(uri: str) → str

Retrieves the MIME type of the resource pointed by uri.

In the event the URI cannot be found, None is returned and error is set to URI_NOT_FOUND. In the event that the MIME type cannot be found, None is returned and error is set to INVALID_VALUE.

Added in version 2.12.

Parameters:: uri – a valid URI

get_modified(uri: str) → int

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 URI_NOT_FOUND.

Added in version 2.12.

Deprecated since version 2.66: Use get_modified_date_time() instead, as time_t is deprecated due to the year 2038 problem.

Parameters:: uri – a valid URI

get_modified_date_time(uri: str) → DateTime

Gets the time when the bookmark for uri was last modified.

In the event the URI cannot be found, None is returned and error is set to URI_NOT_FOUND.

Added in version 2.66.

Parameters:: uri – a valid URI

get_size() → int: Gets the number of bookmarks inside bookmark.

Added in version 2.12.

get_title(uri: str | None = None) → str

Returns the title of the bookmark for uri.

If uri is None, the title of bookmark is returned.

In the event the URI cannot be found, None is returned and error is set to URI_NOT_FOUND.

Added in version 2.12.

Parameters:: uri – a valid URI or None

get_uris() → list[str]: Returns all URIs of the bookmarks in the bookmark file bookmark. The array of returned URIs will be None-terminated, so length may optionally be None.

Added in version 2.12.

get_visited(uri: str) → int

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 URI_NOT_FOUND.

Added in version 2.12.

Deprecated since version 2.66: Use get_visited_date_time() instead, as time_t is deprecated due to the year 2038 problem.

Parameters:: uri – a valid URI

get_visited_date_time(uri: str) → DateTime

Gets the time the bookmark for uri was last visited.

In the event the URI cannot be found, None is returned and error is set to URI_NOT_FOUND.

Added in version 2.66.

Parameters:: uri – a valid URI

has_application(uri: str, name: str) → bool

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 URI_NOT_FOUND.

Added in version 2.12.

Parameters:

uri – a valid URI
name – the name of the application

has_group(uri: str, group: str) → bool

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 URI_NOT_FOUND.

Added in version 2.12.

Parameters:

uri – a valid URI
group – the group name to be searched

has_item(uri: str) → bool

Looks whether the desktop bookmark has an item with its URI set to uri.

Added in version 2.12.

Parameters:: uri – a valid URI

load_from_data(data: Sequence[int]) → bool

Loads a bookmark file from memory into an empty BookmarkFile structure. If the object cannot be created then error is set to a GBookmarkFileError.

Added in version 2.12.

Parameters:: data – desktop bookmarks loaded in memory

load_from_data_dirs(file: str) → tuple[bool, str]

This function looks for a desktop bookmark file named file in the paths returned from get_user_data_dir() and 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 error is set to either a FileError or GBookmarkFileError.

Added in version 2.12.

Parameters:: file – a relative path to a filename to open and parse

load_from_file(filename: str) → bool

Loads a desktop bookmark file into an empty BookmarkFile structure. If the file could not be loaded then error is set to either a FileError or GBookmarkFileError.

Added in version 2.12.

Parameters:: filename – the path of a filename to load, in the GLib file name encoding

move_item(old_uri: str, new_uri: str | None = None) → bool

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 None, then the bookmark is removed.

In the event the URI cannot be found, False is returned and error is set to URI_NOT_FOUND.

Added in version 2.12.

Parameters:

old_uri – a valid URI
new_uri – a valid URI, or None

remove_application(uri: str, name: str) → bool

Removes application registered with name from the list of applications that have registered a bookmark for uri inside bookmark.

Added in version 2.12.

Parameters:

uri – a valid URI
name – the name of the application

remove_group(uri: str, group: str) → bool

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 URI_NOT_FOUND. In the event no group was defined, False is returned and error is set to INVALID_VALUE.

Added in version 2.12.

Parameters:

uri – a valid URI
group – the group name to be removed

remove_item(uri: str) → bool

Removes the bookmark for uri from the bookmark file bookmark.

Added in version 2.12.

Parameters:: uri – a valid URI

set_added(uri: str, added: int) → None

Sets the time the bookmark for uri was added into bookmark.

If no bookmark for uri is found then it is created.

Added in version 2.12.

Deprecated since version 2.66: Use set_added_date_time() instead, as time_t is deprecated due to the year 2038 problem.

Parameters:

uri – a valid URI
added – a timestamp or -1 to use the current time

set_added_date_time(uri: str, added: DateTime) → None

Sets the time the bookmark for uri was added into bookmark.

If no bookmark for uri is found then it is created.

Added in version 2.66.

Parameters:

uri – a valid URI
added – a DateTime

set_app_info(uri: str, name: str, exec: str, count: int, stamp: int) → bool

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 add_application() and 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 get_application_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 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 APP_NOT_REGISTERED. Otherwise, if no bookmark for uri is found, one is created.

Added in version 2.12.

Deprecated since version 2.66: Use set_application_info() instead, as time_t is deprecated due to the year 2038 problem.

Parameters:

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

set_application_info(uri: str, name: str, exec: str, count: int, stamp: DateTime | None = None) → bool

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 add_application() and remove_application() instead.

Added in version 2.66.

Parameters:

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, which may be None if count is 0

set_description(uri: str | None, description: str) → None

Sets description as the description of the bookmark for uri.

If uri is None, the description of bookmark is set.

If a bookmark for uri cannot be found then it is created.

Added in version 2.12.

Parameters:

uri – a valid URI or None
description – a string

set_groups(uri: str, groups: Sequence[str] | None = None) → None

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.

Added in version 2.12.

Parameters:

uri – an item’s URI
groups – an array of group names, or None to remove all groups

set_icon(uri: str, href: str | None, mime_type: str) → None

Sets the icon for the bookmark for uri. If href is None, 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.

Added in version 2.12.

Parameters:

uri – a valid URI
href – the URI of the icon for the bookmark, or None
mime_type – the MIME type of the icon for the bookmark

set_is_private(uri: str, is_private: bool) → None

Sets the private flag of the bookmark for uri.

If a bookmark for uri cannot be found then it is created.

Added in version 2.12.

Parameters:

uri – a valid URI
is_private – True if the bookmark should be marked as private

set_mime_type(uri: str, mime_type: str) → None

Sets mime_type as the MIME type of the bookmark for uri.

If a bookmark for uri cannot be found then it is created.

Added in version 2.12.

Parameters:

uri – a valid URI
mime_type – a MIME type

set_modified(uri: str, modified: int) → None

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 BookmarkFile that modifies a bookmark also changes the modification time, except for set_visited_date_time().

Added in version 2.12.

Deprecated since version 2.66: Use set_modified_date_time() instead, as time_t is deprecated due to the year 2038 problem.

Parameters:

uri – a valid URI
modified – a timestamp or -1 to use the current time

set_modified_date_time(uri: str, modified: DateTime) → None

Sets the last time the bookmark for uri was last modified.

If no bookmark for uri is found then it is created.

Added in version 2.66.

Parameters:

uri – a valid URI
modified – a DateTime

set_title(uri: str | None, title: str) → None

Sets title as the title of the bookmark for uri inside the bookmark file bookmark.

If uri is None, the title of bookmark is set.

If a bookmark for uri cannot be found then it is created.

Added in version 2.12.

Parameters:

uri – a valid URI or None
title – a UTF-8 encoded string

set_visited(uri: str, visited: int) → None

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 get_application_info() or by the default application for the bookmark’s MIME type, retrieved using get_mime_type(). Changing the “visited” time does not affect the “modified” time.

Added in version 2.12.

Deprecated since version 2.66: Use set_visited_date_time() instead, as time_t is deprecated due to the year 2038 problem.

Parameters:

uri – a valid URI
visited – a timestamp or -1 to use the current time

set_visited_date_time(uri: str, visited: DateTime) → None

Sets the time the bookmark for uri was last visited.

If no bookmark for uri is found then it is created.

Added in version 2.66.

Parameters:

uri – a valid URI
visited – a DateTime

to_data() → bytes: This function outputs bookmark as a string.

Added in version 2.12.

to_file(filename: str) → bool

This function outputs bookmark into a file. The write process is guaranteed to be atomic by using file_set_contents() internally.

Added in version 2.12.

Parameters:: filename – path of the output file