Files
libreoffice/pyuno/source/module/uno.py
Noel Grandin cd3204559c fix spelling implemenation -> implementation
Change-Id: I5ac499df1f4063a80a5d41f60778106a7b96940d
2014-11-10 13:36:03 +02:00

405 lines
15 KiB
Python

# -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
#
# This file is part of the LibreOffice project.
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
#
# This file incorporates work covered by the following license notice:
#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed
# with this work for additional information regarding copyright
# ownership. The ASF licenses this file to you under the Apache
# License, Version 2.0 (the "License"); you may not use this file
# except in compliance with the License. You may obtain a copy of
# the License at http://www.apache.org/licenses/LICENSE-2.0 .
#
import sys
import pyuno
try:
import __builtin__
except ImportError:
import builtins as __builtin__
try:
unicode
except NameError:
# Python 3 compatibility
unicode = str
import socket # since on Windows sal3.dll no longer calls WSAStartup
# all functions and variables starting with a underscore (_) must be considered private
# and can be changed at any time. Don't use them
_g_ctx = pyuno.getComponentContext( )
_g_delegatee = __builtin__.__dict__["__import__"]
def getComponentContext():
""" returns the UNO component context, that was used to initialize the python runtime.
"""
return _g_ctx
def getConstantByName( constant ):
"Looks up the value of a idl constant by giving its explicit name"
return pyuno.getConstantByName( constant )
def getTypeByName( typeName):
""" returns a uno.Type instance of the type given by typeName. In case the
type does not exist, a com.sun.star.uno.RuntimeException is raised.
"""
return pyuno.getTypeByName( typeName )
def createUnoStruct( typeName, *args, **kwargs ):
"""creates a uno struct or exception given by typeName. Can be called with:
1) No additional argument.
In this case, you get a default constructed uno structure.
( e.g. createUnoStruct( "com.sun.star.uno.Exception" ) )
2) Exactly one additional argument that is an instance of typeName.
In this case, a copy constructed instance of typeName is returned
( e.g. createUnoStruct( "com.sun.star.uno.Exception" , e ) )
3) As many additional arguments as the number of elements within typeName
(e.g. createUnoStruct( "com.sun.star.uno.Exception", "foo error" , self) ).
4) Keyword arguments to give values for each element of the struct by name.
5) A mix of 3) and 4), such that each struct element is given a value exactly once,
either by a positional argument or by a keyword argument.
The additional and/or keyword arguments must match the type of each struct element,
otherwise an exception is thrown.
"""
return getClass(typeName)( *args, **kwargs )
def getClass( typeName ):
"""returns the class of a concrete uno exception, struct or interface
"""
return pyuno.getClass(typeName)
def isInterface( obj ):
"""returns true, when obj is a class of a uno interface"""
return pyuno.isInterface( obj )
def generateUuid():
"returns a 16 byte sequence containing a newly generated uuid or guid, see rtl/uuid.h "
return pyuno.generateUuid()
def systemPathToFileUrl( systemPath ):
"returns a file-url for the given system path"
return pyuno.systemPathToFileUrl( systemPath )
def fileUrlToSystemPath( url ):
"returns a system path (determined by the system, the python interpreter is running on)"
return pyuno.fileUrlToSystemPath( url )
def absolutize( path, relativeUrl ):
"returns an absolute file url from the given urls"
return pyuno.absolutize( path, relativeUrl )
def getCurrentContext():
"""Returns the currently valid current context.
see http://udk.openoffice.org/common/man/concept/uno_contexts.html#current_context
for an explanation on the current context concept
"""
return pyuno.getCurrentContext()
def setCurrentContext( newContext ):
"""Sets newContext as new uno current context. The newContext must
implement the XCurrentContext interface. The implementation should
handle the desired properties and delegate unknown properties to the
old context. Ensure to reset the old one when you leave your stack ...
see http://udk.openoffice.org/common/man/concept/uno_contexts.html#current_context
"""
return pyuno.setCurrentContext( newContext )
class Enum:
"Represents a UNO idl enum, use an instance of this class to explicitly pass a boolean to UNO"
#typeName the name of the enum as a string
#value the actual value of this enum as a string
def __init__(self,typeName, value):
self.typeName = typeName
self.value = value
pyuno.checkEnum( self )
def __repr__(self):
return "<uno.Enum %s (%r)>" % (self.typeName, self.value)
def __eq__(self, that):
if not isinstance(that, Enum):
return False
return (self.typeName == that.typeName) and (self.value == that.value)
class Type:
"Represents a UNO type, use an instance of this class to explicitly pass a boolean to UNO"
# typeName # Name of the UNO type
# typeClass # python Enum of TypeClass, see com/sun/star/uno/TypeClass.idl
def __init__(self, typeName, typeClass):
self.typeName = typeName
self.typeClass = typeClass
pyuno.checkType(self)
def __repr__(self):
return "<Type instance %s (%r)>" % (self.typeName, self.typeClass)
def __eq__(self, that):
if not isinstance(that, Type):
return False
return self.typeClass == that.typeClass and self.typeName == that.typeName
def __hash__(self):
return self.typeName.__hash__()
class Bool(object):
"""Represents a UNO boolean, use an instance of this class to explicitly
pass a boolean to UNO.
Note: This class is deprecated. Use python's True and False directly instead
"""
def __new__(cls, value):
if isinstance(value, (str, unicode)) and value == "true":
return True
if isinstance(value, (str, unicode)) and value == "false":
return False
if value:
return True
return False
class Char:
"Represents a UNO char, use an instance of this class to explicitly pass a char to UNO"
# @param value pass a Unicode string with length 1
def __init__(self,value):
assert isinstance(value, unicode)
assert len(value) == 1
self.value=value
def __repr__(self):
return "<Char instance %s>" % (self.value, )
def __eq__(self, that):
if isinstance(that, (str, unicode)):
if len(that) > 1:
return False
return self.value == that[0]
if isinstance(that, Char):
return self.value == that.value
return False
# Suggested by Christian, but still some open problems which need to be solved first
#
#class ByteSequence(str):
#
# def __repr__(self):
# return "<ByteSequence instance %s>" % str.__repr__(self)
# for a little bit compatitbility; setting value is not possible as
# strings are immutable
# def _get_value(self):
# return self
#
# value = property(_get_value)
class ByteSequence:
def __init__(self, value):
if isinstance(value, bytes):
self.value = value
elif isinstance(value, str):
self.value = value.encode("utf-8") # Python 2 compatibility
elif isinstance(value, ByteSequence):
self.value = value.value
else:
raise TypeError("expected string or bytesequence")
def __repr__(self):
return "<ByteSequence instance '%s'>" % (self.value, )
def __eq__(self, that):
if isinstance( that, ByteSequence):
return self.value == that.value
if isinstance(that, bytes):
return self.value == that
if isinstance(that, str):
return self.value == that.encode("utf-8")
return False
def __len__(self):
return len(self.value)
def __getitem__(self, index):
return self.value[index]
def __iter__( self ):
return self.value.__iter__()
def __add__( self , b ):
if isinstance( b, bytes):
return ByteSequence(self.value + b)
elif isinstance( b, str ):
return ByteSequence( self.value + b.encode("utf-8") )
elif isinstance( b, ByteSequence ):
return ByteSequence( self.value + b.value )
raise TypeError( "expected string or ByteSequence as operand" )
def __hash__( self ):
return self.value.hash()
class Any:
"use only in connection with uno.invoke() to pass an explicit typed any"
def __init__(self, type, value ):
if isinstance( type, Type ):
self.type = type
else:
self.type = getTypeByName( type )
self.value = value
def invoke( object, methodname, argTuple ):
"use this function to pass exactly typed anys to the callee (using uno.Any)"
return pyuno.invoke( object, methodname, argTuple )
#---------------------------------------------------------------------------------------
# don't use any functions beyond this point, private section, likely to change
#---------------------------------------------------------------------------------------
#def _uno_import( name, globals={}, locals={}, fromlist=[], level=-1 ):
def _uno_import( name, *optargs, **kwargs ):
try:
# print "optargs = " + repr(optargs)
return _g_delegatee( name, *optargs, **kwargs )
except ImportError as e:
# process optargs
globals, locals, fromlist = list(optargs)[:3] + [kwargs.get('globals',{}), kwargs.get('locals',{}), kwargs.get('fromlist',[])][len(optargs):]
# from import form only, but skip if an uno lookup has already failed
if not fromlist or hasattr(e, '_uno_import_failed'):
raise
# hang onto exception for possible use on subsequent uno lookup failure
py_import_exc = e
modnames = name.split( "." )
mod = None
d = sys.modules
for x in modnames:
if x in d:
mod = d[x]
else:
mod = pyuno.__class__(x) # How to create a module ??
d = mod.__dict__
RuntimeException = pyuno.getClass( "com.sun.star.uno.RuntimeException" )
for x in fromlist:
if x not in d:
failed = False
if x.startswith( "typeOf" ):
try:
d[x] = pyuno.getTypeByName( name + "." + x[6:len(x)] )
except RuntimeException:
failed = True
else:
try:
# check for structs, exceptions or interfaces
d[x] = pyuno.getClass( name + "." + x )
except RuntimeException:
# check for enums
try:
d[x] = Enum( name , x )
except RuntimeException:
# check for constants
try:
d[x] = getConstantByName( name + "." + x )
except RuntimeException:
failed = True
if failed:
# We have an import failure, but cannot distinguish between
# uno and non-uno errors as uno lookups are attempted for all
# "from xxx import yyy" imports following a python failure.
#
# In Python 3, the original python exception traceback is reused
# to help pinpoint the actual failing location. Its original
# message, unlike Python 2, is unlikely to be helpful for uno
# failures, as it most commonly is just a top level module like
# 'com'. So our exception appends the uno lookup failure.
# This is more ambiguous, but it plus the traceback should be
# sufficient to identify a root cause for python or uno issues.
#
# Our exception is raised outside of the nested exception
# handlers above, to avoid Python 3 nested exception
# information for the RuntimeExceptions during lookups.
#
# Finally, a private attribute is used to prevent further
# processing if this failure was in a nested import. That
# keeps the exception relevant to the primary failure point,
# preventing us from re-processing our own import errors.
uno_import_exc = ImportError("%s (or '%s.%s' is unknown)" %
(py_import_exc, name, x))
if sys.version_info[0] >= 3:
uno_import_exc = uno_import_exc.with_traceback(py_import_exc.__traceback__)
uno_import_exc._uno_import_failed = True
raise uno_import_exc
return mod
# private function, don't use
def _impl_extractName(name):
r = list(range(len(name)-1,0,-1))
for i in r:
if name[i] == ".":
name = name[i+1:len(name)]
break
return name
# private, referenced from the pyuno shared library
def _uno_struct__init__(self,*args, **kwargs):
if len(kwargs) == 0 and len(args) == 1 and hasattr(args[0], "__class__") and args[0].__class__ == self.__class__ :
self.__dict__["value"] = args[0]
else:
struct, used = pyuno._createUnoStructHelper(self.__class__.__pyunostruct__,args,**kwargs)
for kw in kwargs.keys():
if not (kw in used and used[kw]):
RuntimeException = pyuno.getClass( "com.sun.star.uno.RuntimeException" )
raise RuntimeException("_uno_struct__init__: unused keyword argument '" + kw + "'", None)
self.__dict__["value"] = struct
# private, referenced from the pyuno shared library
def _uno_struct__getattr__(self,name):
return __builtin__.getattr(self.__dict__["value"],name)
# private, referenced from the pyuno shared library
def _uno_struct__setattr__(self,name,value):
return __builtin__.setattr(self.__dict__["value"],name,value)
# private, referenced from the pyuno shared library
def _uno_struct__repr__(self):
return repr(self.__dict__["value"])
def _uno_struct__str__(self):
return str(self.__dict__["value"])
# private, referenced from the pyuno shared library
def _uno_struct__eq__(self,cmp):
if hasattr(cmp,"value"):
return self.__dict__["value"] == cmp.__dict__["value"]
return False
# referenced from pyuno shared lib and pythonscript.py
def _uno_extract_printable_stacktrace( trace ):
mod = None
try:
mod = __import__("traceback")
except ImportError as e:
pass
ret = ""
if mod:
lst = mod.extract_tb( trace )
max = len(lst)
for j in range(max):
i = lst[max-j-1]
ret = ret + " " + str(i[0]) + ":" + \
str(i[1]) + " in function " + \
str(i[2]) + "() [" + str(i[3]) + "]\n"
else:
ret = "Couldn't import traceback module"
return ret
# hook into the __import__ chain
__builtin__.__dict__["__import__"] = _uno_import
# vim:set shiftwidth=4 softtabstop=4 expandtab: