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: /proc/thread-self/root/usr/lib/python3/dist-packages/gi/overrides/ [ drwxr-xr-x ]
name : Gio.py # -*- Mode: Python; py-indent-offset: 4 -*- # vim: tabstop=4 shiftwidth=4 expandtab # # Copyright (C) 2010 Ignacio Casal Quinteiro <icq@gnome.org> # # 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 warnings from .._ossighelper import wakeup_on_signal, register_sigint_fallback from ..overrides import override, deprecated_init from ..module import get_introspection_module from .._compat import xrange from gi._gi import pygobject_new_full from gi import PyGIWarning from gi.repository import GLib import sys Gio = get_introspection_module('Gio') __all__ = [] class Application(Gio.Application): def run(self, *args, **kwargs): with register_sigint_fallback(self.quit): with wakeup_on_signal(): return Gio.Application.run(self, *args, **kwargs) Application = override(Application) __all__.append('Application') def _warn_init(cls, instead=None): def new_init(self, *args, **kwargs): super(cls, self).__init__(*args, **kwargs) name = cls.__module__.rsplit(".", 1)[-1] + "." + cls.__name__ if instead: warnings.warn( ("%s shouldn't be instantiated directly, " "use %s instead." % (name, instead)), PyGIWarning, stacklevel=2) else: warnings.warn( "%s shouldn't be instantiated directly." % (name,), PyGIWarning, stacklevel=2) return new_init @override class VolumeMonitor(Gio.VolumeMonitor): # https://bugzilla.gnome.org/show_bug.cgi?id=744690 __init__ = _warn_init(Gio.VolumeMonitor, "Gio.VolumeMonitor.get()") __all__.append('VolumeMonitor') @override class DBusAnnotationInfo(Gio.DBusAnnotationInfo): __init__ = _warn_init(Gio.DBusAnnotationInfo) __all__.append('DBusAnnotationInfo') @override class DBusArgInfo(Gio.DBusArgInfo): __init__ = _warn_init(Gio.DBusArgInfo) __all__.append('DBusArgInfo') @override class DBusMethodInfo(Gio.DBusMethodInfo): __init__ = _warn_init(Gio.DBusMethodInfo) __all__.append('DBusMethodInfo') @override class DBusSignalInfo(Gio.DBusSignalInfo): __init__ = _warn_init(Gio.DBusSignalInfo) __all__.append('DBusSignalInfo') @override class DBusInterfaceInfo(Gio.DBusInterfaceInfo): __init__ = _warn_init(Gio.DBusInterfaceInfo) __all__.append('DBusInterfaceInfo') @override class DBusNodeInfo(Gio.DBusNodeInfo): __init__ = _warn_init(Gio.DBusNodeInfo) __all__.append('DBusNodeInfo') class ActionMap(Gio.ActionMap): def add_action_entries(self, entries, user_data=None): """ The add_action_entries() method is a convenience function for creating multiple Gio.SimpleAction instances and adding them to a Gio.ActionMap. Each action is constructed as per one entry. :param list entries: List of entry tuples for add_action() method. The entry tuple can vary in size with the following information: * The name of the action. Must be specified. * The callback to connect to the "activate" signal of the action. Since GLib 2.40, this can be None for stateful actions, in which case the default handler is used. For boolean-stated actions with no parameter, this is a toggle. For other state types (and parameter type equal to the state type) this will be a function that just calls change_state (which you should provide). * The type of the parameter that must be passed to the activate function for this action, given as a single GLib.Variant type string (or None for no parameter) * The initial state for this action, given in GLib.Variant text format. The state is parsed with no extra type information, so type tags must be added to the string if they are necessary. Stateless actions should give None here. * The callback to connect to the "change-state" signal of the action. All stateful actions should provide a handler here; stateless actions should not. :param user_data: The user data for signal connections, or None """ try: iter(entries) except (TypeError): raise TypeError('entries must be iterable') def _process_action(name, activate=None, parameter_type=None, state=None, change_state=None): if parameter_type: if not GLib.VariantType.string_is_valid(parameter_type): raise TypeError("The type string '%s' given as the " "parameter type for action '%s' is " "not a valid GVariant type string. " % (parameter_type, name)) variant_parameter = GLib.VariantType.new(parameter_type) else: variant_parameter = None if state is not None: # stateful action variant_state = GLib.Variant.parse(None, state, None, None) action = Gio.SimpleAction.new_stateful(name, variant_parameter, variant_state) if change_state is not None: action.connect('change-state', change_state, user_data) else: # stateless action if change_state is not None: raise ValueError("Stateless action '%s' should give " "None for 'change_state', not '%s'." % (name, change_state)) action = Gio.SimpleAction(name=name, parameter_type=variant_parameter) if activate is not None: action.connect('activate', activate, user_data) self.add_action(action) for entry in entries: # using inner function above since entries can leave out optional arguments _process_action(*entry) ActionMap = override(ActionMap) __all__.append('ActionMap') class FileEnumerator(Gio.FileEnumerator): def __iter__(self): return self def __next__(self): file_info = self.next_file(None) if file_info is not None: return file_info else: raise StopIteration # python 2 compat for the iter protocol next = __next__ FileEnumerator = override(FileEnumerator) __all__.append('FileEnumerator') class MenuItem(Gio.MenuItem): def set_attribute(self, attributes): for (name, format_string, value) in attributes: self.set_attribute_value(name, GLib.Variant(format_string, value)) MenuItem = override(MenuItem) __all__.append('MenuItem') class Settings(Gio.Settings): '''Provide dictionary-like access to GLib.Settings.''' __init__ = deprecated_init(Gio.Settings.__init__, arg_names=('schema', 'path', 'backend')) def __contains__(self, key): return key in self.list_keys() def __len__(self): return len(self.list_keys()) def __iter__(self): for key in self.list_keys(): yield key def __bool__(self): # for "if mysettings" we don't want a dictionary-like test here, just # if the object isn't None return True # alias for Python 2.x object protocol __nonzero__ = __bool__ def __getitem__(self, key): # get_value() aborts the program on an unknown key if key not in self: raise KeyError('unknown key: %r' % (key,)) return self.get_value(key).unpack() def __setitem__(self, key, value): # set_value() aborts the program on an unknown key if key not in self: raise KeyError('unknown key: %r' % (key,)) # determine type string of this key range = self.get_range(key) type_ = range.get_child_value(0).get_string() v = range.get_child_value(1) if type_ == 'type': # v is boxed empty array, type of its elements is the allowed value type type_str = v.get_child_value(0).get_type_string() assert type_str.startswith('a') type_str = type_str[1:] elif type_ == 'enum': # v is an array with the allowed values assert v.get_child_value(0).get_type_string().startswith('a') type_str = v.get_child_value(0).get_child_value(0).get_type_string() allowed = v.unpack() if value not in allowed: raise ValueError('value %s is not an allowed enum (%s)' % (value, allowed)) elif type_ == 'range': tuple_ = v.get_child_value(0) type_str = tuple_.get_child_value(0).get_type_string() min_, max_ = tuple_.unpack() if value < min_ or value > max_: raise ValueError( 'value %s not in range (%s - %s)' % (value, min_, max_)) else: raise NotImplementedError('Cannot handle allowed type range class ' + str(type_)) self.set_value(key, GLib.Variant(type_str, value)) def keys(self): return self.list_keys() Settings = override(Settings) __all__.append('Settings') class _DBusProxyMethodCall: '''Helper class to implement DBusProxy method calls.''' def __init__(self, dbus_proxy, method_name): self.dbus_proxy = dbus_proxy self.method_name = method_name def __async_result_handler(self, obj, result, user_data): (result_callback, error_callback, real_user_data) = user_data try: ret = obj.call_finish(result) except Exception: etype, e = sys.exc_info()[:2] # return exception as value if error_callback: error_callback(obj, e, real_user_data) else: result_callback(obj, e, real_user_data) return result_callback(obj, self._unpack_result(ret), real_user_data) def __call__(self, *args, **kwargs): # the first positional argument is the signature, unless we are calling # a method without arguments; then signature is implied to be '()'. if args: signature = args[0] args = args[1:] if not isinstance(signature, str): raise TypeError('first argument must be the method signature string: %r' % signature) else: signature = '()' arg_variant = GLib.Variant(signature, tuple(args)) if 'result_handler' in kwargs: # asynchronous call user_data = (kwargs['result_handler'], kwargs.get('error_handler'), kwargs.get('user_data')) self.dbus_proxy.call(self.method_name, arg_variant, kwargs.get('flags', 0), kwargs.get('timeout', -1), None, self.__async_result_handler, user_data) else: # synchronous call result = self.dbus_proxy.call_sync(self.method_name, arg_variant, kwargs.get('flags', 0), kwargs.get('timeout', -1), None) return self._unpack_result(result) @classmethod def _unpack_result(klass, result): '''Convert a D-BUS return variant into an appropriate return value''' result = result.unpack() # to be compatible with standard Python behaviour, unbox # single-element tuples and return None for empty result tuples if len(result) == 1: result = result[0] elif len(result) == 0: result = None return result class DBusProxy(Gio.DBusProxy): '''Provide comfortable and pythonic method calls. This marshalls the method arguments into a GVariant, invokes the call_sync() method on the DBusProxy object, and unmarshalls the result GVariant back into a Python tuple. The first argument always needs to be the D-Bus signature tuple of the method call. Example: proxy = Gio.DBusProxy.new_sync(...) result = proxy.MyMethod('(is)', 42, 'hello') The exception are methods which take no arguments, like proxy.MyMethod('()'). For these you can omit the signature and just write proxy.MyMethod(). Optional keyword arguments: - timeout: timeout for the call in milliseconds (default to D-Bus timeout) - flags: Combination of Gio.DBusCallFlags.* - result_handler: Do an asynchronous method call and invoke result_handler(proxy_object, result, user_data) when it finishes. - error_handler: If the asynchronous call raises an exception, error_handler(proxy_object, exception, user_data) is called when it finishes. If error_handler is not given, result_handler is called with the exception object as result instead. - user_data: Optional user data to pass to result_handler for asynchronous calls. Example for asynchronous calls: def mymethod_done(proxy, result, user_data): if isinstance(result, Exception): # handle error else: # do something with result proxy.MyMethod('(is)', 42, 'hello', result_handler=mymethod_done, user_data='data') ''' def __getattr__(self, name): return _DBusProxyMethodCall(self, name) DBusProxy = override(DBusProxy) __all__.append('DBusProxy') class ListModel(Gio.ListModel): def __getitem__(self, key): if isinstance(key, slice): return [self.get_item(i) for i in xrange(*key.indices(len(self)))] elif isinstance(key, int): if key < 0: key += len(self) if key < 0: raise IndexError ret = self.get_item(key) if ret is None: raise IndexError return ret else: raise TypeError def __contains__(self, item): pytype = self.get_item_type().pytype if not isinstance(item, pytype): raise TypeError( "Expected type %s.%s" % (pytype.__module__, pytype.__name__)) for i in self: if i == item: return True return False def __len__(self): return self.get_n_items() def __iter__(self): for i in xrange(len(self)): yield self.get_item(i) ListModel = override(ListModel) __all__.append('ListModel') def _wrap_list_store_sort_func(func): def wrap(a, b, *user_data): a = pygobject_new_full(a, False) b = pygobject_new_full(b, False) return func(a, b, *user_data) return wrap if (GLib.MAJOR_VERSION, GLib.MINOR_VERSION, GLib.MICRO_VERSION) < (2, 57, 1): # The "additions" functionality in splice() was broken in older glib # https://bugzilla.gnome.org/show_bug.cgi?id=795307 # This is a slower fallback which emits a signal per added item def _list_store_splice(self, position, n_removals, additions): self.splice(position, n_removals, []) for v in reversed(additions): self.insert(position, v) else: def _list_store_splice(self, position, n_removals, additions): self.splice(position, n_removals, additions) class ListStore(Gio.ListStore): def sort(self, compare_func, *user_data): compare_func = _wrap_list_store_sort_func(compare_func) return super(ListStore, self).sort(compare_func, *user_data) def insert_sorted(self, item, compare_func, *user_data): compare_func = _wrap_list_store_sort_func(compare_func) return super(ListStore, self).insert_sorted( item, compare_func, *user_data) def __delitem__(self, key): if isinstance(key, slice): start, stop, step = key.indices(len(self)) if step == 1: _list_store_splice(self, start, max(stop - start, 0), []) elif step == -1: _list_store_splice(self, stop + 1, max(start - stop, 0), []) else: for i in sorted(xrange(start, stop, step), reverse=True): self.remove(i) elif isinstance(key, int): if key < 0: key += len(self) if key < 0 or key >= len(self): raise IndexError self.remove(key) else: raise TypeError def __setitem__(self, key, value): if isinstance(key, slice): pytype = self.get_item_type().pytype valuelist = [] for v in value: if not isinstance(v, pytype): raise TypeError( "Expected type %s.%s" % ( pytype.__module__, pytype.__name__)) valuelist.append(v) start, stop, step = key.indices(len(self)) if step == 1: _list_store_splice( self, start, max(stop - start, 0), valuelist) else: indices = list(xrange(start, stop, step)) if len(indices) != len(valuelist): raise ValueError if step == -1: _list_store_splice( self, stop + 1, max(start - stop, 0), valuelist[::-1]) else: for i, v in zip(indices, valuelist): _list_store_splice(self, i, 1, [v]) elif isinstance(key, int): if key < 0: key += len(self) if key < 0 or key >= len(self): raise IndexError pytype = self.get_item_type().pytype if not isinstance(value, pytype): raise TypeError( "Expected type %s.%s" % ( pytype.__module__, pytype.__name__)) _list_store_splice(self, key, 1, [value]) else: raise TypeError ListStore = override(ListStore) __all__.append('ListStore')