[z3-checkins] r5685 - z3/Five/branch/dc-experiments

[philikon at codespeak.net]

Author: philikon
Date: Mon Jul 26 15:33:24 2004
New Revision: 5685

Removed:
   z3/Five/branch/dc-experiments/traversable.py
Log:
Remove prematurely copied file; will be replaced soon with a copy
that has revision history


Deleted: /z3/Five/branch/dc-experiments/traversable.py
==============================================================================
--- /z3/Five/branch/dc-experiments/traversable.py	Mon Jul 26 15:33:24 2004
+++ (empty file)
@@ -1,91 +0,0 @@
-##############################################################################
-#
-# Copyright (c) 2004 Five Contributors. All rights reserved.
-#
-# This software is distributed under the terms of the Zope Public
-# License (ZPL) v2.1. See COPYING.txt for more information.
-#
-##############################################################################
-"""Machinery for making things traversable through adaptation
-
-$Id: traversable.py 5654 2004-07-24 20:35:55Z dreamcatcher $
-"""
-from zope.exceptions import NotFoundError
-from zope.component import getView, ComponentLookupError
-from zope.interface import implements
-from zope.publisher.interfaces.browser import IBrowserRequest
-from zope.app.traversing.interfaces import ITraverser, ITraversable
-from zope.app.traversing.adapters import DefaultTraversable
-from zope.app.traversing.namespace import queryResourceInContext
-from monkey import DebugFlags
-
-class FakeRequest:
-    implements(IBrowserRequest)
-
-    debug = DebugFlags()
-
-    def getPresentationSkin(self):
-        return None
-
-class Traversable:
-    """A mixin to make an object traversable using an ITraverser adapter.
-    """
-    __five_traversable__ = True
-
-    def __fallback_traverse__(self, REQUEST, name):
-        """Method hook for fallback traversal
-
-        This method is called by __bobo_traverse___ when Zope3-style
-        ITraverser traversal fails. By default, we do what Zope 2 would do,
-        raise a NotFound error.
-        """
-        try:
-            REQUEST.RESPONSE.notFoundError("%s " % name)
-        except AttributeError:
-            raise KeyError, name
-
-    def __bobo_traverse__(self, REQUEST, name):
-        """Hook for Zope 2 traversal
-
-        This method is called by Zope 2's ZPublisher upon traversal.
-        It allows us to trick it into faking the Zope 3 traversal system
-        by using an ITraverser adapter.
-        """
-        if not IBrowserRequest.providedBy(REQUEST):
-            REQUEST = FakeRequest()
-        try:
-            kw = dict(path=[name], request=REQUEST)
-            return ITraverser(self).traverse(**kw).__of__(self)
-        except (ComponentLookupError, NotFoundError, AttributeError):
-            pass
-        try:
-            return getattr(self, name)
-        except AttributeError:
-            pass
-        try:
-            return self[name]
-        except (AttributeError, KeyError):
-            pass
-        return self.__fallback_traverse__(REQUEST, name)
-
-class FiveTraversable(DefaultTraversable):
-
-    def traverse(self, name, furtherPath):
-        context = self._subject
-        __traceback_info__ = (context, name, furtherPath)
-        # Find the REQUEST
-        REQUEST = getattr(context, 'REQUEST', None)
-        if not IBrowserRequest.providedBy(REQUEST):
-            REQUEST = FakeRequest()
-        # Try to lookup a view first
-        try:
-            return getView(context, name, REQUEST).__of__(context)
-        except ComponentLookupError:
-            pass
-        # If a view can't be found, try to lookup a resource
-        resource = queryResourceInContext(context, name, REQUEST)
-        if resource is not None:
-            return resource
-        # If a resource can't be found, then use default traversable
-        return super(FiveTraversable, self).traverse(name, furtherPath)
-