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# -*- Mode: Python; py-indent-offset: 4 -*-
# vim: tabstop=4 shiftwidth=4 expandtab
#
# Copyright (C) 2010 Tomeu Vizoso <tomeu.vizoso@collabora.co.uk>
# Copyright (C) 2011, 2012 Canonical Ltd.
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
# USA
import signal
import warnings
import sys
import socket
from ..module import get_introspection_module
from .._gi import (variant_type_from_string, source_new,
source_set_callback, io_channel_read)
from ..overrides import override, deprecated, deprecated_attr
from gi import PyGIDeprecationWarning, version_info
GLib = get_introspection_module('GLib')
__all__ = []
from gi import _option as option
option # pyflakes
__all__.append('option')
# Types and functions still needed from static bindings
from gi._gi import _glib
from gi._gi import _gobject
from gi._error import GError
Error = GError
OptionContext = _glib.OptionContext
OptionGroup = _glib.OptionGroup
Pid = _glib.Pid
spawn_async = _glib.spawn_async
def threads_init():
warnings.warn('Since version 3.11, calling threads_init is no longer needed. '
'See: https://wiki.gnome.org/PyGObject/Threading',
PyGIDeprecationWarning, stacklevel=2)
def gerror_matches(self, domain, code):
# Handle cases where self.domain was set to an integer for compatibility
# with the introspected GLib.Error.
if isinstance(self.domain, str):
self_domain_quark = GLib.quark_from_string(self.domain)
else:
self_domain_quark = self.domain
return (self_domain_quark, self.code) == (domain, code)
def gerror_new_literal(domain, message, code):
domain_quark = GLib.quark_to_string(domain)
return GError(message, domain_quark, code)
# Monkey patch methods that rely on GLib introspection to be loaded at runtime.
Error.__name__ = 'Error'
Error.__module__ = 'GLib'
Error.__gtype__ = GLib.Error.__gtype__
Error.matches = gerror_matches
Error.new_literal = staticmethod(gerror_new_literal)
__all__ += ['GError', 'Error', 'OptionContext', 'OptionGroup', 'Pid',
'spawn_async', 'threads_init']
class _VariantCreator(object):
_LEAF_CONSTRUCTORS = {
'b': GLib.Variant.new_boolean,
'y': GLib.Variant.new_byte,
'n': GLib.Variant.new_int16,
'q': GLib.Variant.new_uint16,
'i': GLib.Variant.new_int32,
'u': GLib.Variant.new_uint32,
'x': GLib.Variant.new_int64,
't': GLib.Variant.new_uint64,
'h': GLib.Variant.new_handle,
'd': GLib.Variant.new_double,
's': GLib.Variant.new_string,
'o': GLib.Variant.new_object_path,
'g': GLib.Variant.new_signature,
'v': GLib.Variant.new_variant,
}
def _create(self, format, args):
"""Create a GVariant object from given format and argument list.
This method recursively calls itself for complex structures (arrays,
dictionaries, boxed).
Return a tuple (variant, rest_format, rest_args) with the generated
GVariant, the remainder of the format string, and the remainder of the
arguments.
If args is None, then this won't actually consume any arguments, and
just parse the format string and generate empty GVariant structures.
This is required for creating empty dictionaries or arrays.
"""
# leaves (simple types)
constructor = self._LEAF_CONSTRUCTORS.get(format[0])
if constructor:
if args is not None:
if not args:
raise TypeError('not enough arguments for GVariant format string')
v = constructor(args[0])
return (v, format[1:], args[1:])
else:
return (None, format[1:], None)
if format[0] == '(':
return self._create_tuple(format, args)
if format.startswith('a{'):
return self._create_dict(format, args)
if format[0] == 'a':
return self._create_array(format, args)
raise NotImplementedError('cannot handle GVariant type ' + format)
def _create_tuple(self, format, args):
"""Handle the case where the outermost type of format is a tuple."""
format = format[1:] # eat the '('
if args is None:
# empty value: we need to call _create() to parse the subtype
rest_format = format
while rest_format:
if rest_format.startswith(')'):
break
rest_format = self._create(rest_format, None)[1]
else:
raise TypeError('tuple type string not closed with )')
rest_format = rest_format[1:] # eat the )
return (None, rest_format, None)
else:
if not args or not isinstance(args[0], tuple):
raise TypeError('expected tuple argument')
builder = GLib.VariantBuilder.new(variant_type_from_string('r'))
for i in range(len(args[0])):
if format.startswith(')'):
raise TypeError('too many arguments for tuple signature')
(v, format, _) = self._create(format, args[0][i:])
builder.add_value(v)
args = args[1:]
if not format.startswith(')'):
raise TypeError('tuple type string not closed with )')
rest_format = format[1:] # eat the )
return (builder.end(), rest_format, args)
def _create_dict(self, format, args):
"""Handle the case where the outermost type of format is a dict."""
builder = None
if args is None or not args[0]:
# empty value: we need to call _create() to parse the subtype,
# and specify the element type precisely
rest_format = self._create(format[2:], None)[1]
rest_format = self._create(rest_format, None)[1]
if not rest_format.startswith('}'):
raise TypeError('dictionary type string not closed with }')
rest_format = rest_format[1:] # eat the }
element_type = format[:len(format) - len(rest_format)]
builder = GLib.VariantBuilder.new(variant_type_from_string(element_type))
else:
builder = GLib.VariantBuilder.new(variant_type_from_string('a{?*}'))
for k, v in args[0].items():
(key_v, rest_format, _) = self._create(format[2:], [k])
(val_v, rest_format, _) = self._create(rest_format, [v])
if not rest_format.startswith('}'):
raise TypeError('dictionary type string not closed with }')
rest_format = rest_format[1:] # eat the }
entry = GLib.VariantBuilder.new(variant_type_from_string('{?*}'))
entry.add_value(key_v)
entry.add_value(val_v)
builder.add_value(entry.end())
if args is not None:
args = args[1:]
return (builder.end(), rest_format, args)
def _create_array(self, format, args):
"""Handle the case where the outermost type of format is an array."""
builder = None
if args is None or not args[0]:
# empty value: we need to call _create() to parse the subtype,
# and specify the element type precisely
rest_format = self._create(format[1:], None)[1]
element_type = format[:len(format) - len(rest_format)]
builder = GLib.VariantBuilder.new(variant_type_from_string(element_type))
else:
builder = GLib.VariantBuilder.new(variant_type_from_string('a*'))
for i in range(len(args[0])):
(v, rest_format, _) = self._create(format[1:], args[0][i:])
builder.add_value(v)
if args is not None:
args = args[1:]
return (builder.end(), rest_format, args)
class Variant(GLib.Variant):
def __new__(cls, format_string, value):
"""Create a GVariant from a native Python object.
format_string is a standard GVariant type signature, value is a Python
object whose structure has to match the signature.
Examples:
GLib.Variant('i', 1)
GLib.Variant('(is)', (1, 'hello'))
GLib.Variant('(asa{sv})', ([], {'foo': GLib.Variant('b', True),
'bar': GLib.Variant('i', 2)}))
"""
creator = _VariantCreator()
(v, rest_format, _) = creator._create(format_string, [value])
if rest_format:
raise TypeError('invalid remaining format string: "%s"' % rest_format)
v.format_string = format_string
return v
@staticmethod
def new_tuple(*elements):
return GLib.Variant.new_tuple(elements)
def __del__(self):
self.unref()
def __str__(self):
return self.print_(True)
def __repr__(self):
if hasattr(self, 'format_string'):
f = self.format_string
else:
f = self.get_type_string()
return "GLib.Variant('%s', %s)" % (f, self.print_(False))
def __eq__(self, other):
try:
return self.equal(other)
except TypeError:
return False
def __ne__(self, other):
try:
return not self.equal(other)
except TypeError:
return True
def __hash__(self):
# We're not using just hash(self.unpack()) because otherwise we'll have
# hash collisions between the same content in different variant types,
# which will cause a performance issue in set/dict/etc.
return hash((self.get_type_string(), self.unpack()))
def unpack(self):
"""Decompose a GVariant into a native Python object."""
LEAF_ACCESSORS = {
'b': self.get_boolean,
'y': self.get_byte,
'n': self.get_int16,
'q': self.get_uint16,
'i': self.get_int32,
'u': self.get_uint32,
'x': self.get_int64,
't': self.get_uint64,
'h': self.get_handle,
'd': self.get_double,
's': self.get_string,
'o': self.get_string, # object path
'g': self.get_string, # signature
}
# simple values
la = LEAF_ACCESSORS.get(self.get_type_string())
if la:
return la()
# tuple
if self.get_type_string().startswith('('):
res = [self.get_child_value(i).unpack()
for i in range(self.n_children())]
return tuple(res)
# dictionary
if self.get_type_string().startswith('a{'):
res = {}
for i in range(self.n_children()):
v = self.get_child_value(i)
res[v.get_child_value(0).unpack()] = v.get_child_value(1).unpack()
return res
# array
if self.get_type_string().startswith('a'):
return [self.get_child_value(i).unpack()
for i in range(self.n_children())]
# variant (just unbox transparently)
if self.get_type_string().startswith('v'):
return self.get_variant().unpack()
# maybe
if self.get_type_string().startswith('m'):
m = self.get_maybe()
return m.unpack() if m else None
raise NotImplementedError('unsupported GVariant type ' + self.get_type_string())
@classmethod
def split_signature(klass, signature):
"""Return a list of the element signatures of the topmost signature tuple.
If the signature is not a tuple, it returns one element with the entire
signature. If the signature is an empty tuple, the result is [].
This is useful for e. g. iterating over method parameters which are
passed as a single Variant.
"""
if signature == '()':
return []
if not signature.startswith('('):
return [signature]
result = []
head = ''
tail = signature[1:-1] # eat the surrounding ()
while tail:
c = tail[0]
head += c
tail = tail[1:]
if c in ('m', 'a'):
# prefixes, keep collecting
continue
if c in ('(', '{'):
# consume until corresponding )/}
level = 1
up = c
if up == '(':
down = ')'
else:
down = '}'
while level > 0:
c = tail[0]
head += c
tail = tail[1:]
if c == up:
level += 1
elif c == down:
level -= 1
# otherwise we have a simple type
result.append(head)
head = ''
return result
#
# Pythonic iterators
#
def __len__(self):
if self.get_type_string() in ['s', 'o', 'g']:
return len(self.get_string())
# Array, dict, tuple
if self.get_type_string().startswith('a') or self.get_type_string().startswith('('):
return self.n_children()
raise TypeError('GVariant type %s does not have a length' % self.get_type_string())
def __getitem__(self, key):
# dict
if self.get_type_string().startswith('a{'):
try:
val = self.lookup_value(key, variant_type_from_string('*'))
if val is None:
raise KeyError(key)
return val.unpack()
except TypeError:
# lookup_value() only works for string keys, which is certainly
# the common case; we have to do painful iteration for other
# key types
for i in range(self.n_children()):
v = self.get_child_value(i)
if v.get_child_value(0).unpack() == key:
return v.get_child_value(1).unpack()
raise KeyError(key)
# array/tuple
if self.get_type_string().startswith('a') or self.get_type_string().startswith('('):
key = int(key)
if key < 0:
key = self.n_children() + key
if key < 0 or key >= self.n_children():
raise IndexError('list index out of range')
return self.get_child_value(key).unpack()
# string
if self.get_type_string() in ['s', 'o', 'g']:
return self.get_string().__getitem__(key)
raise TypeError('GVariant type %s is not a container' % self.get_type_string())
#
# Pythonic bool operations
#
def __nonzero__(self):
return self.__bool__()
def __bool__(self):
if self.get_type_string() in ['y', 'n', 'q', 'i', 'u', 'x', 't', 'h', 'd']:
return self.unpack() != 0
if self.get_type_string() in ['b']:
return self.get_boolean()
if self.get_type_string() in ['s', 'o', 'g']:
return len(self.get_string()) != 0
# Array, dict, tuple
if self.get_type_string().startswith('a') or self.get_type_string().startswith('('):
return self.n_children() != 0
if self.get_type_string() in ['v']:
# unpack works recursively, hence bool also works recursively
return bool(self.unpack())
# Everything else is True
return True
def keys(self):
if not self.get_type_string().startswith('a{'):
return TypeError, 'GVariant type %s is not a dictionary' % self.get_type_string()
res = []
for i in range(self.n_children()):
v = self.get_child_value(i)
res.append(v.get_child_value(0).unpack())
return res
def get_string(self):
value, length = GLib.Variant.get_string(self)
return value
setattr(Variant, 'get_string', get_string)
__all__.append('Variant')
def markup_escape_text(text, length=-1):
if isinstance(text, bytes):
return GLib.markup_escape_text(text.decode('UTF-8'), length)
else:
return GLib.markup_escape_text(text, length)
__all__.append('markup_escape_text')
# backwards compatible names from old static bindings
for n in ['DESKTOP', 'DOCUMENTS', 'DOWNLOAD', 'MUSIC', 'PICTURES',
'PUBLIC_SHARE', 'TEMPLATES', 'VIDEOS']:
attr = 'USER_DIRECTORY_' + n
deprecated_attr("GLib", attr, "GLib.UserDirectory.DIRECTORY_" + n)
globals()[attr] = getattr(GLib.UserDirectory, 'DIRECTORY_' + n)
__all__.append(attr)
for n in ['ERR', 'HUP', 'IN', 'NVAL', 'OUT', 'PRI']:
globals()['IO_' + n] = getattr(GLib.IOCondition, n)
__all__.append('IO_' + n)
for n in ['APPEND', 'GET_MASK', 'IS_READABLE', 'IS_SEEKABLE',
'MASK', 'NONBLOCK', 'SET_MASK']:
attr = 'IO_FLAG_' + n
deprecated_attr("GLib", attr, "GLib.IOFlags." + n)
globals()[attr] = getattr(GLib.IOFlags, n)
__all__.append(attr)
# spelling for the win
IO_FLAG_IS_WRITEABLE = GLib.IOFlags.IS_WRITABLE
deprecated_attr("GLib", "IO_FLAG_IS_WRITEABLE", "GLib.IOFlags.IS_WRITABLE")
__all__.append('IO_FLAG_IS_WRITEABLE')
for n in ['AGAIN', 'EOF', 'ERROR', 'NORMAL']:
attr = 'IO_STATUS_' + n
globals()[attr] = getattr(GLib.IOStatus, n)
deprecated_attr("GLib", attr, "GLib.IOStatus." + n)
__all__.append(attr)
for n in ['CHILD_INHERITS_STDIN', 'DO_NOT_REAP_CHILD', 'FILE_AND_ARGV_ZERO',
'LEAVE_DESCRIPTORS_OPEN', 'SEARCH_PATH', 'STDERR_TO_DEV_NULL',
'STDOUT_TO_DEV_NULL']:
attr = 'SPAWN_' + n
globals()[attr] = getattr(GLib.SpawnFlags, n)
deprecated_attr("GLib", attr, "GLib.SpawnFlags." + n)
__all__.append(attr)
for n in ['HIDDEN', 'IN_MAIN', 'REVERSE', 'NO_ARG', 'FILENAME', 'OPTIONAL_ARG',
'NOALIAS']:
attr = 'OPTION_FLAG_' + n
globals()[attr] = getattr(GLib.OptionFlags, n)
deprecated_attr("GLib", attr, "GLib.OptionFlags." + n)
__all__.append(attr)
for n in ['UNKNOWN_OPTION', 'BAD_VALUE', 'FAILED']:
attr = 'OPTION_ERROR_' + n
deprecated_attr("GLib", attr, "GLib.OptionError." + n)
globals()[attr] = getattr(GLib.OptionError, n)
__all__.append(attr)
# these are not currently exported in GLib gir, presumably because they are
# platform dependent; so get them from our static bindings
for name in ['G_MINFLOAT', 'G_MAXFLOAT', 'G_MINDOUBLE', 'G_MAXDOUBLE',
'G_MINSHORT', 'G_MAXSHORT', 'G_MAXUSHORT', 'G_MININT', 'G_MAXINT',
'G_MAXUINT', 'G_MINLONG', 'G_MAXLONG', 'G_MAXULONG', 'G_MAXSIZE',
'G_MINSSIZE', 'G_MAXSSIZE', 'G_MINOFFSET', 'G_MAXOFFSET']:
attr = name.split("_", 1)[-1]
globals()[attr] = getattr(_gobject, name)
__all__.append(attr)
class MainLoop(GLib.MainLoop):
# Backwards compatible constructor API
def __new__(cls, context=None):
return GLib.MainLoop.new(context, False)
# Retain classic pygobject behaviour of quitting main loops on SIGINT
def __init__(self, context=None):
def _handler(loop):
loop.quit()
loop._quit_by_sigint = True
# We handle signal deletion in __del__, return True so GLib
# doesn't do the deletion for us.
return True
if sys.platform != 'win32':
# compatibility shim, keep around until we depend on glib 2.36
if hasattr(GLib, 'unix_signal_add'):
fn = GLib.unix_signal_add
else:
fn = GLib.unix_signal_add_full
self._signal_source = fn(GLib.PRIORITY_DEFAULT, signal.SIGINT, _handler, self)
def __del__(self):
if hasattr(self, '_signal_source'):
GLib.source_remove(self._signal_source)
def run(self):
super(MainLoop, self).run()
if hasattr(self, '_quit_by_sigint'):
# caught by _main_loop_sigint_handler()
raise KeyboardInterrupt
MainLoop = override(MainLoop)
__all__.append('MainLoop')
class MainContext(GLib.MainContext):
# Backwards compatible API with default value
def iteration(self, may_block=True):
return super(MainContext, self).iteration(may_block)
MainContext = override(MainContext)
__all__.append('MainContext')
class Source(GLib.Source):
def __new__(cls, *args, **kwargs):
# use our custom pyg_source_new() here as g_source_new() is not
# bindable
source = source_new()
source.__class__ = cls
setattr(source, '__pygi_custom_source', True)
return source
def __init__(self, *args, **kwargs):
return super(Source, self).__init__()
def set_callback(self, fn, user_data=None):
if hasattr(self, '__pygi_custom_source'):
# use our custom pyg_source_set_callback() if for a GSource object
# with custom functions
source_set_callback(self, fn, user_data)
else:
# otherwise, for Idle and Timeout, use the standard method
super(Source, self).set_callback(fn, user_data)
def get_current_time(self):
return GLib.get_real_time() * 0.000001
get_current_time = deprecated(get_current_time,
'GLib.Source.get_time() or GLib.get_real_time()')
# as get/set_priority are introspected, we can't use the static
# property(get_priority, ..) here
def __get_priority(self):
return self.get_priority()
def __set_priority(self, value):
self.set_priority(value)
priority = property(__get_priority, __set_priority)
def __get_can_recurse(self):
return self.get_can_recurse()
def __set_can_recurse(self, value):
self.set_can_recurse(value)
can_recurse = property(__get_can_recurse, __set_can_recurse)
Source = override(Source)
__all__.append('Source')
class Idle(Source):
def __new__(cls, priority=GLib.PRIORITY_DEFAULT):
source = GLib.idle_source_new()
source.__class__ = cls
return source
def __init__(self, priority=GLib.PRIORITY_DEFAULT):
super(Source, self).__init__()
if priority != GLib.PRIORITY_DEFAULT:
self.set_priority(priority)
__all__.append('Idle')
class Timeout(Source):
def __new__(cls, interval=0, priority=GLib.PRIORITY_DEFAULT):
source = GLib.timeout_source_new(interval)
source.__class__ = cls
return source
def __init__(self, interval=0, priority=GLib.PRIORITY_DEFAULT):
if priority != GLib.PRIORITY_DEFAULT:
self.set_priority(priority)
__all__.append('Timeout')
# backwards compatible API
def idle_add(function, *user_data, **kwargs):
priority = kwargs.get('priority', GLib.PRIORITY_DEFAULT_IDLE)
return GLib.idle_add(priority, function, *user_data)
__all__.append('idle_add')
def timeout_add(interval, function, *user_data, **kwargs):
priority = kwargs.get('priority', GLib.PRIORITY_DEFAULT)
return GLib.timeout_add(priority, interval, function, *user_data)
__all__.append('timeout_add')
def timeout_add_seconds(interval, function, *user_data, **kwargs):
priority = kwargs.get('priority', GLib.PRIORITY_DEFAULT)
return GLib.timeout_add_seconds(priority, interval, function, *user_data)
__all__.append('timeout_add_seconds')
# The GI GLib API uses g_io_add_watch_full renamed to g_io_add_watch with
# a signature of (channel, priority, condition, func, user_data).
# Prior to PyGObject 3.8, this function was statically bound with an API closer to the
# non-full version with a signature of: (fd, condition, func, *user_data)
# We need to support this until we are okay with breaking API in a way which is
# not backwards compatible.
#
# This needs to take into account several historical APIs:
# - calling with an fd as first argument
# - calling with a Python file object as first argument (we keep this one as
# it's really convenient and does not change the number of arguments)
# - calling without a priority as second argument
def _io_add_watch_get_args(channel, priority_, condition, *cb_and_user_data, **kwargs):
if not isinstance(priority_, int) or isinstance(priority_, GLib.IOCondition):
warnings.warn('Calling io_add_watch without priority as second argument is deprecated',
PyGIDeprecationWarning)
# shift the arguments around
user_data = cb_and_user_data
callback = condition
condition = priority_
if not callable(callback):
raise TypeError('third argument must be callable')
# backwards compatibility: Call with priority kwarg
if 'priority' in kwargs:
warnings.warn('Calling io_add_watch with priority keyword argument is deprecated, put it as second positional argument',
PyGIDeprecationWarning)
priority_ = kwargs['priority']
else:
priority_ = GLib.PRIORITY_DEFAULT
else:
if len(cb_and_user_data) < 1 or not callable(cb_and_user_data[0]):
raise TypeError('expecting callback as fourth argument')
callback = cb_and_user_data[0]
user_data = cb_and_user_data[1:]
# backwards compatibility: Allow calling with fd
if isinstance(channel, int):
func_fdtransform = lambda _, cond, *data: callback(channel, cond, *data)
real_channel = GLib.IOChannel.unix_new(channel)
elif isinstance(channel, socket.socket) and sys.platform == 'win32':
func_fdtransform = lambda _, cond, *data: callback(channel, cond, *data)
real_channel = GLib.IOChannel.win32_new_socket(channel.fileno())
elif hasattr(channel, 'fileno'):
# backwards compatibility: Allow calling with Python file
func_fdtransform = lambda _, cond, *data: callback(channel, cond, *data)
real_channel = GLib.IOChannel.unix_new(channel.fileno())
else:
assert isinstance(channel, GLib.IOChannel)
func_fdtransform = callback
real_channel = channel
return real_channel, priority_, condition, func_fdtransform, user_data
__all__.append('_io_add_watch_get_args')
def io_add_watch(*args, **kwargs):
"""io_add_watch(channel, priority, condition, func, *user_data) -> event_source_id"""
channel, priority, condition, func, user_data = _io_add_watch_get_args(*args, **kwargs)
return GLib.io_add_watch(channel, priority, condition, func, *user_data)
__all__.append('io_add_watch')
# backwards compatible API
class IOChannel(GLib.IOChannel):
def __new__(cls, filedes=None, filename=None, mode=None, hwnd=None):
if filedes is not None:
return GLib.IOChannel.unix_new(filedes)
if filename is not None:
return GLib.IOChannel.new_file(filename, mode or 'r')
if hwnd is not None:
return GLib.IOChannel.win32_new_fd(hwnd)
raise TypeError('either a valid file descriptor, file name, or window handle must be supplied')
def __init__(self, *args, **kwargs):
return super(IOChannel, self).__init__()
def read(self, max_count=-1):
return io_channel_read(self, max_count)
def readline(self, size_hint=-1):
# note, size_hint is just to maintain backwards compatible API; the
# old static binding did not actually use it
(status, buf, length, terminator_pos) = self.read_line()
if buf is None:
return ''
return buf
def readlines(self, size_hint=-1):
# note, size_hint is just to maintain backwards compatible API;
# the old static binding did not actually use it
lines = []
status = GLib.IOStatus.NORMAL
while status == GLib.IOStatus.NORMAL:
(status, buf, length, terminator_pos) = self.read_line()
# note, this appends an empty line after EOF; this is
# bug-compatible with the old static bindings
if buf is None:
buf = ''
lines.append(buf)
return lines
def write(self, buf, buflen=-1):
if not isinstance(buf, bytes):
buf = buf.encode('UTF-8')
if buflen == -1:
buflen = len(buf)
(status, written) = self.write_chars(buf, buflen)
return written
def writelines(self, lines):
for line in lines:
self.write(line)
_whence_map = {0: GLib.SeekType.SET, 1: GLib.SeekType.CUR, 2: GLib.SeekType.END}
def seek(self, offset, whence=0):
try:
w = self._whence_map[whence]
except KeyError:
raise ValueError("invalid 'whence' value")
return self.seek_position(offset, w)
def add_watch(self, condition, callback, *user_data, **kwargs):
priority = kwargs.get('priority', GLib.PRIORITY_DEFAULT)
return io_add_watch(self, priority, condition, callback, *user_data)
add_watch = deprecated(add_watch, 'GLib.io_add_watch()')
def __iter__(self):
return self
def __next__(self):
(status, buf, length, terminator_pos) = self.read_line()
if status == GLib.IOStatus.NORMAL:
return buf
raise StopIteration
# Python 2.x compatibility
next = __next__
IOChannel = override(IOChannel)
__all__.append('IOChannel')
class PollFD(GLib.PollFD):
def __new__(cls, fd, events):
pollfd = GLib.PollFD()
pollfd.__class__ = cls
return pollfd
def __init__(self, fd, events):
self.fd = fd
self.events = events
PollFD = override(PollFD)
__all__.append('PollFD')
# The GI GLib API uses g_child_watch_add_full renamed to g_child_watch_add with
# a signature of (priority, pid, callback, data).
# Prior to PyGObject 3.8, this function was statically bound with an API closer to the
# non-full version with a signature of: (pid, callback, data=None, priority=GLib.PRIORITY_DEFAULT)
# We need to support this until we are okay with breaking API in a way which is
# not backwards compatible.
def _child_watch_add_get_args(priority_or_pid, pid_or_callback, *args, **kwargs):
user_data = []
if callable(pid_or_callback):
warnings.warn('Calling child_watch_add without priority as first argument is deprecated',
PyGIDeprecationWarning)
pid = priority_or_pid
callback = pid_or_callback
if len(args) == 0:
priority = kwargs.get('priority', GLib.PRIORITY_DEFAULT)
elif len(args) == 1:
user_data = args
priority = kwargs.get('priority', GLib.PRIORITY_DEFAULT)
elif len(args) == 2:
user_data = [args[0]]
priority = args[1]
else:
raise TypeError('expected at most 4 positional arguments')
else:
priority = priority_or_pid
pid = pid_or_callback
if 'function' in kwargs:
callback = kwargs['function']
user_data = args
elif len(args) > 0 and callable(args[0]):
callback = args[0]
user_data = args[1:]
else:
raise TypeError('expected callback as third argument')
if 'data' in kwargs:
if user_data:
raise TypeError('got multiple values for "data" argument')
user_data = [kwargs['data']]
return priority, pid, callback, user_data
# we need this to be accessible for unit testing
__all__.append('_child_watch_add_get_args')
def child_watch_add(*args, **kwargs):
"""child_watch_add(priority, pid, function, *data)"""
priority, pid, function, data = _child_watch_add_get_args(*args, **kwargs)
return GLib.child_watch_add(priority, pid, function, *data)
__all__.append('child_watch_add')
def get_current_time():
return GLib.get_real_time() * 0.000001
get_current_time = deprecated(get_current_time, 'GLib.get_real_time()')
__all__.append('get_current_time')
# backwards compatible API with default argument, and ignoring bytes_read
# output argument
def filename_from_utf8(utf8string, len=-1):
return GLib.filename_from_utf8(utf8string, len)[0]
__all__.append('filename_from_utf8')
# backwards compatible API for renamed function
if not hasattr(GLib, 'unix_signal_add_full'):
def add_full_compat(*args):
warnings.warn('GLib.unix_signal_add_full() was renamed to GLib.unix_signal_add()',
PyGIDeprecationWarning)
return GLib.unix_signal_add(*args)
GLib.unix_signal_add_full = add_full_compat
# obsolete constants for backwards compatibility
glib_version = (GLib.MAJOR_VERSION, GLib.MINOR_VERSION, GLib.MICRO_VERSION)
__all__.append('glib_version')
deprecated_attr("GLib", "glib_version",
"(GLib.MAJOR_VERSION, GLib.MINOR_VERSION, GLib.MICRO_VERSION)")
pyglib_version = version_info
__all__.append('pyglib_version')
deprecated_attr("GLib", "pyglib_version", "gi.version_info")
| .. | |||||
| GIMarshallingTests.py | |||||
| GIMarshallingTests.pyc | |||||
| GIMarshallingTests.pyo | |||||
| GLib.py | |||||
| GLib.pyc | |||||
| GLib.pyo | |||||
| GObject.py | |||||
| GObject.pyc | |||||
| GObject.pyo | |||||
| Gdk.py | |||||
| Gdk.pyc | |||||
| Gdk.pyo | |||||
| Gio.py | |||||
| Gio.pyc | |||||
| Gio.pyo | |||||
| Gtk.py | |||||
| Gtk.pyc | |||||
| Gtk.pyo | |||||
| Pango.py | |||||
| Pango.pyc | |||||
| Pango.pyo | |||||
| __init__.py | |||||
| __init__.pyc | |||||
| __init__.pyo | |||||
| keysyms.py | |||||
| keysyms.pyc | |||||
| keysyms.pyo |