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GeezerVison is showing github.com — python-xlib/Xlib/error.py at master · python-xlib/python-xlib

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# Xlib.error -- basic error classes
#
# Copyright (C) 2000 Peter Liljenberg <[email protected]>
#
# 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.,
# 59 Temple Place,
# Suite 330,
# Boston, MA 02111-1307 USA
# Xlib modules
from . import X
# Xlib.protocol modules
from .protocol import rq
class DisplayError(Exception):
def __init__(self, display):
self.display = display
def __str__(self):
return 'Display error "%s"' % self.display
class DisplayNameError(DisplayError):
def __str__(self):
return 'Bad display name "%s"' % self.display
class DisplayConnectionError(DisplayError):
def __init__(self, display, msg):
self.display = display
self.msg = msg
def __str__(self):
return 'Can\'t connect to display "%s": %s' % (self.display, self.msg)
class ConnectionClosedError(Exception):
def __init__(self, whom):
self.whom = whom
def __str__(self):
return 'Display connection closed by %s' % self.whom
class XauthError(Exception): pass
class XNoAuthError(Exception): pass
class ResourceIDError(Exception): pass
class XError(rq.GetAttrData, Exception):
_fields = rq.Struct( rq.Card8('type'), # Always 0
rq.Card8('code'),
rq.Card16('sequence_number'),
rq.Card32('resource_id'),
rq.Card16('minor_opcode'),
rq.Card8('major_opcode'),
rq.Pad(21)
)
def __init__(self, display, data):
self._data, _ = self._fields.parse_binary(data, display, rawdict = True)
def __str__(self):
s = []
for f in ('code', 'resource_id', 'sequence_number',
'major_opcode', 'minor_opcode'):
s.append('{0} = {1}'.format(f, self._data[f]))
return '{0}: {1}'.format(self.__class__, ', '.join(s))
class XResourceError(XError):
_fields = rq.Struct( rq.Card8('type'), # Always 0
rq.Card8('code'),
rq.Card16('sequence_number'),
rq.Resource('resource_id'),
rq.Card16('minor_opcode'),
rq.Card8('major_opcode'),
rq.Pad(21)
)
class BadRequest(XError): pass
class BadValue(XError): pass
class BadWindow(XResourceError): pass
class BadPixmap(XResourceError): pass
class BadAtom(XError): pass
class BadCursor(XResourceError): pass
class BadFont(XResourceError): pass
class BadMatch(XError): pass
class BadDrawable(XResourceError): pass
class BadAccess(XError): pass
class BadAlloc(XError): pass
class BadColor(XResourceError): pass
class BadGC(XResourceError): pass
class BadIDChoice(XResourceError): pass
class BadName(XError): pass
class BadLength(XError): pass
class BadImplementation(XError): pass
xerror_class = {
X.BadRequest: BadRequest,
X.BadValue: BadValue,
X.BadWindow: BadWindow,
X.BadPixmap: BadPixmap,
X.BadAtom: BadAtom,
X.BadCursor: BadCursor,
X.BadFont: BadFont,
X.BadMatch: BadMatch,
X.BadDrawable: BadDrawable,
X.BadAccess: BadAccess,
X.BadAlloc: BadAlloc,
X.BadColor: BadColor,
X.BadGC: BadGC,
X.BadIDChoice: BadIDChoice,
X.BadName: BadName,
X.BadLength: BadLength,
X.BadImplementation: BadImplementation,
}
class CatchError(object):
def __init__(self, *errors):
self.error_types = errors
self.error = None
self.request = None
def __call__(self, error, request):
if self.error_types:
for etype in self.error_types:
if isinstance(error, etype):
self.error = error
self.request = request
return 1
return 0
else:
self.error = error
self.request = request
return 1
def get_error(self):
return self.error
def get_request(self):
return self.request
def reset(self):
self.error = None
self.request = None
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