root/trunk/RBSkinning/RBSkinning/skin/trylist.py

#!/usr/bin/env python
##~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
##~ License 
##~ 
##- The RuneBlade Foundation library is intended to ease some 
##- aspects of writing intricate Jabber, XML, and User Interface (wxPython, etc.) 
##- applications, while providing the flexibility to modularly change the 
##- architecture. Enjoy.
##~ 
##~ Copyright (C) 2002  TechGame Networks, LLC.
##~ 
##~ This library is free software; you can redistribute it and/or
##~ modify it under the terms of the BSD style License as found in the 
##~ LICENSE file included with this distribution.
##~ 
##~ TechGame Networks, LLC can be reached at:
##~ 3578 E. Hartsel Drive #211
##~ Colorado Springs, Colorado, USA, 80920
##~
##~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#~ Imports 
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

from RBFoundation.XMLBuilder import ElementFactoryError
from RBSkinning.SkinObject import SkinObject 
from RBSkinning.UtilitySkinElements import StoreXML, RestoreStoredXMLMixin
from template import TemplateElementFactorySet

#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#~ Class
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

class trylist(SkinObject, RestoreStoredXMLMixin):
    #~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    #~ Constants / Variables / Etc. 
    #~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    default_settings = SkinObject.default_settings.copy()
    #default_settings.update({
    #    'catch': '(ImportError, ElementFactoryError)'
    #    })

    ElementFactories = TemplateElementFactorySet
    DefaultCatchlist = (ImportError, ElementFactoryError)

    #~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    #~ Public Methods 
    #~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    def __init__(self, owner, parent, node, attributes, namespacemap): 
        SkinObject.__init__(self, owner, parent, node, attributes, namespacemap)
        self.owner = owner

    def SkinInitialize(self):
        self.owner.PushElementFactorySet(self.ElementFactories)

    def SkinFinalize(self):
        self.owner.PopElementFactorySet()

        try:
            catchtuple = self.EvalLocal(self.settings['catch'], ElementFactoryError=ElementFactoryError)
        except (KeyError, IndexError):
            catchtuple = self.DefaultCatchlist

        stackstate = self.owner._SaveStackState()
        for isnode, child in self.children:
            try:
                if isnode:
                    result = child.Restore(self.owner)
                    if result is not None:
                        break
            except catchtuple, e:
                # Adjust the element stack to what it was when wes started
                self.owner._RestoreStackState(stackstate)

        del self.owner

    def _addData(self, data):
        pass # Ignore all CDATA