pyuno/source/module/unohelper.py

   1 # -*- tab-width: 4; indent-tabs-mode: nil; py-indent-offset: 4 -*-
   2 #
   3 # This file is part of the LibreOffice project.
   4 #
   5 # This Source Code Form is subject to the terms of the Mozilla Public
   6 # License, v. 2.0. If a copy of the MPL was not distributed with this
   7 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8 #
   9 # This file incorporates work covered by the following license notice:
  10 #
  11 #   Licensed to the Apache Software Foundation (ASF) under one or more
  12 #   contributor license agreements. See the NOTICE file distributed
  13 #   with this work for additional information regarding copyright
  14 #   ownership. The ASF licenses this file to you under the Apache
  15 #   License, Version 2.0 (the "License"); you may not use this file
  16 #   except in compliance with the License. You may obtain a copy of
  17 #   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18 #
  19 import uno
  20 import pyuno
  21 import os
  22 import sys
  23
  24 from com.sun.star.lang import XTypeProvider, XSingleComponentFactory, XServiceInfo
  25 from com.sun.star.uno import RuntimeException, XCurrentContext
  26 from com.sun.star.beans.MethodConcept import ALL as METHOD_CONCEPT_ALL
  27 from com.sun.star.beans.PropertyConcept import ALL as PROPERTY_CONCEPT_ALL
  28
  29 from com.sun.star.reflection.ParamMode import \
  30      IN as PARAM_MODE_IN, \
  31      OUT as PARAM_MODE_OUT, \
  32      INOUT as PARAM_MODE_INOUT
  33
  34 from com.sun.star.beans.PropertyAttribute import \
  35      MAYBEVOID as PROP_ATTR_MAYBEVOID, \
  36      BOUND as PROP_ATTR_BOUND, \
  37      CONSTRAINED as PROP_ATTR_CONSTRAINED, \
  38      TRANSIENT as PROP_ATTR_TRANSIENT, \
  39      READONLY as PROP_ATTR_READONLY, \
  40      MAYBEAMBIGUOUS as PROP_ATTR_MAYBEAMBIGUOUS, \
  41      MAYBEDEFAULT as PROP_ATTR_MAYBEDEFAULT, \
  42      REMOVABLE as PROP_ATTR_REMOVABLE
  43
  44 def _mode_to_str( mode ):
  45     ret = "[]"
  46     if mode == PARAM_MODE_INOUT:
  47         ret = "[inout]"
  48     elif mode == PARAM_MODE_OUT:
  49         ret = "[out]"
  50     elif mode == PARAM_MODE_IN:
  51         ret = "[in]"
  52     return ret
  53
  54 def _propertymode_to_str( mode ):
  55     ret = ""
  56     if PROP_ATTR_REMOVABLE & mode:
  57         ret = ret + "removable "
  58     if PROP_ATTR_MAYBEDEFAULT & mode:
  59         ret = ret + "maybedefault "
  60     if PROP_ATTR_MAYBEAMBIGUOUS & mode:
  61         ret = ret + "maybeambiguous "
  62     if PROP_ATTR_READONLY & mode:
  63         ret = ret + "readonly "
  64     if PROP_ATTR_TRANSIENT & mode:
  65         ret = ret + "transient "
  66     if PROP_ATTR_CONSTRAINED & mode:
  67         ret = ret + "constrained "
  68     if PROP_ATTR_BOUND & mode:
  69         ret = ret + "bound "
  70     if PROP_ATTR_MAYBEVOID & mode:
  71         ret = ret + "maybevoid "
  72     return ret.rstrip()
  73
  74 def inspect( obj , out ):
  75     if isinstance( obj, uno.Type ) or \
  76        isinstance( obj, uno.Char ) or \
  77        isinstance( obj, uno.Bool ) or \
  78        isinstance( obj, uno.ByteSequence ) or \
  79        isinstance( obj, uno.Enum ) or \
  80        isinstance( obj, uno.Any ):
  81         out.write( str(obj) + "\n")
  82         return
  83
  84     ctx = uno.getComponentContext()
  85     introspection = \
  86          ctx.ServiceManager.createInstanceWithContext( "com.sun.star.beans.Introspection", ctx )
  87
  88     out.write( "Supported services:\n" )
  89     if hasattr( obj, "getSupportedServiceNames" ):
  90         names = obj.getSupportedServiceNames()
  91         for ii in names:
  92             out.write( "  " + ii + "\n" )
  93     else:
  94         out.write( "  unknown\n" )
  95
  96     out.write( "Interfaces:\n" )
  97     if hasattr( obj, "getTypes" ):
  98         interfaces = obj.getTypes()
  99         for ii in interfaces:
 100             out.write( "  " + ii.typeName + "\n" )
 101     else:
 102         out.write( "  unknown\n" )
 103
 104     access = introspection.inspect( obj )
 105     methods = access.getMethods( METHOD_CONCEPT_ALL )
 106     out.write( "Methods:\n" )
 107     for ii in methods:
 108         out.write( "  " + ii.ReturnType.Name + " " + ii.Name )
 109         args = ii.ParameterTypes
 110         infos = ii.ParameterInfos
 111         out.write( "( " )
 112         for i in range( 0, len( args ) ):
 113             if i > 0:
 114                 out.write( ", " )
 115             out.write( _mode_to_str( infos[i].aMode ) + " " + args[i].Name + " " + infos[i].aName )
 116         out.write( " )\n" )
 117
 118     props = access.getProperties( PROPERTY_CONCEPT_ALL )
 119     out.write ("Properties:\n" )
 120     for ii in props:
 121         out.write( "  ("+_propertymode_to_str( ii.Attributes ) + ") "+ii.Type.typeName+" "+ii.Name+ "\n" )
 122
 123 def createSingleServiceFactory( clazz, implementationName, serviceNames ):
 124     return _FactoryHelper_( clazz, implementationName, serviceNames )
 125
 126 class _ImplementationHelperEntry:
 127     def __init__(self, ctor,serviceNames):
 128         self.ctor = ctor
 129         self.serviceNames = serviceNames
 130
 131 class ImplementationHelper:
 132     def __init__(self):
 133         self.impls = {}
 134
 135     def addImplementation( self, ctor, implementationName, serviceNames ):
 136         self.impls[implementationName] =  _ImplementationHelperEntry(ctor,serviceNames)
 137
 138     def writeRegistryInfo( self, regKey, smgr ):
 139         for i in list(self.impls.items()):
 140             keyName = "/"+ i[0] + "/UNO/SERVICES"
 141             key = regKey.createKey( keyName )
 142             for serviceName in i[1].serviceNames:
 143                 key.createKey( serviceName )
 144         return 1
 145
 146     def getComponentFactory( self, implementationName , regKey, smgr ):
 147         entry = self.impls.get( implementationName, None )
 148         if entry is None:
 149             raise RuntimeException( implementationName + " is unknown" , None )
 150         return createSingleServiceFactory( entry.ctor, implementationName, entry.serviceNames )
 151
 152     def getSupportedServiceNames( self, implementationName ):
 153         entry = self.impls.get( implementationName, None )
 154         if entry is None:
 155             raise RuntimeException( implementationName + " is unknown" , None )
 156         return entry.serviceNames
 157
 158     def supportsService( self, implementationName, serviceName ):
 159         entry = self.impls.get( implementationName,None )
 160         if entry is None:
 161             raise RuntimeException( implementationName + " is unknown", None )
 162         return serviceName in entry.serviceNames
 163
 164
 165 class ImplementationEntry:
 166     def __init__(self, implName, supportedServices, clazz ):
 167         self.implName = implName
 168         self.supportedServices = supportedServices
 169         self.clazz = clazz
 170
 171 def writeRegistryInfoHelper( smgr, regKey, seqEntries ):
 172     for entry in seqEntries:
 173         keyName = "/"+ entry.implName + "/UNO/SERVICES"
 174         key = regKey.createKey( keyName )
 175         for serviceName in entry.supportedServices:
 176             key.createKey( serviceName )
 177
 178 def systemPathToFileUrl( systemPath ):
 179     "returns a file-url for the given system path"
 180     return pyuno.systemPathToFileUrl( systemPath )
 181
 182 def fileUrlToSystemPath( url ):
 183     "returns a system path (determined by the system, the python interpreter is running on)"
 184     return pyuno.fileUrlToSystemPath( url )
 185
 186 def absolutize( path, relativeUrl ):
 187     "returns an absolute file url from the given urls"
 188     return pyuno.absolutize( path, relativeUrl )
 189
 190 def getComponentFactoryHelper( implementationName, smgr, regKey, seqEntries ):
 191     for x in seqEntries:
 192         if x.implName == implementationName:
 193             return createSingleServiceFactory( x.clazz, implementationName, x.supportedServices )
 194
 195 def addComponentsToContext( toBeExtendedContext, contextRuntime, componentUrls, loaderName ):
 196     smgr = contextRuntime.ServiceManager
 197     loader = smgr.createInstanceWithContext( loaderName, contextRuntime )
 198     implReg = smgr.createInstanceWithContext( "com.sun.star.registry.ImplementationRegistration",contextRuntime)
 199
 200     isWin = os.name == 'nt' or os.name == 'dos'
 201     isMac = sys.platform == 'darwin'
 202     #   create a temporary registry
 203     for componentUrl in componentUrls:
 204         reg = smgr.createInstanceWithContext( "com.sun.star.registry.SimpleRegistry", contextRuntime )
 205         reg.open( "", 0, 1 )
 206         if not isWin and componentUrl.endswith( ".uno" ):  # still allow platform independent naming
 207             if isMac:
 208                 componentUrl = componentUrl + ".dylib"
 209             else:
 210                 componentUrl = componentUrl + ".so"
 211
 212         implReg.registerImplementation( loaderName,componentUrl, reg )
 213         rootKey = reg.getRootKey()
 214         implementationKey = rootKey.openKey( "IMPLEMENTATIONS" )
 215         implNames = implementationKey.getKeyNames()
 216         extSMGR = toBeExtendedContext.ServiceManager
 217         for x in implNames:
 218             fac = loader.activate( max(x.split("/")),"",componentUrl,rootKey)
 219             extSMGR.insert( fac )
 220         reg.close()
 221
 222 # never shrinks !
 223 _g_typeTable = {}
 224 def _unohelper_getHandle( self):
 225     ret = None
 226     if self.__class__ in _g_typeTable:
 227         ret = _g_typeTable[self.__class__]
 228     else:
 229         names = {}
 230         traverse = list(self.__class__.__bases__)
 231         while len( traverse ) > 0:
 232             item = traverse.pop()
 233             bases = item.__bases__
 234             if uno.isInterface( item ):
 235                 names[item.__pyunointerface__] = None
 236             elif len(bases) > 0:
 237                 # the "else if", because we only need the most derived interface
 238                 traverse = traverse + list(bases)#
 239
 240         lst = list(names.keys())
 241         types = []
 242         for x in lst:
 243             t = uno.getTypeByName( x )
 244             types.append( t )
 245
 246         ret = tuple(types)
 247         _g_typeTable[self.__class__] = ret
 248     return ret
 249
 250 class Base(XTypeProvider):
 251     def getTypes( self ):
 252         return _unohelper_getHandle( self )
 253     def getImplementationId(self):
 254         return ()
 255
 256 class CurrentContext(XCurrentContext, Base ):
 257     """a current context implementation, which first does a lookup in the given
 258        hashmap and if the key cannot be found, it delegates to the predecessor
 259        if available
 260     """
 261     def __init__( self, oldContext, hashMap ):
 262         self.hashMap = hashMap
 263         self.oldContext = oldContext
 264
 265     def getValueByName( self, name ):
 266         if name in self.hashMap:
 267             return self.hashMap[name]
 268         elif self.oldContext is not None:
 269             return self.oldContext.getValueByName( name )
 270         else:
 271             return None
 272
 273 # -------------------------------------------------
 274 # implementation details
 275 # -------------------------------------------------
 276 class _FactoryHelper_( XSingleComponentFactory, XServiceInfo, Base ):
 277     def __init__( self, clazz, implementationName, serviceNames ):
 278         self.clazz = clazz
 279         self.implementationName = implementationName
 280         self.serviceNames = serviceNames
 281
 282     def getImplementationName( self ):
 283         return self.implementationName
 284
 285     def supportsService( self, ServiceName ):
 286         return ServiceName in self.serviceNames
 287
 288     def getSupportedServiceNames( self ):
 289         return self.serviceNames
 290
 291     def createInstanceWithContext( self, context ):
 292         return self.clazz( context )
 293
 294     def createInstanceWithArgumentsAndContext( self, args, context ):
 295         return self.clazz( context, *args )
 296
 297 # vim: set shiftwidth=4 softtabstop=4 expandtab: