Got rid of an old definition

translationdomain.py

@@ -0,0 +1,277 @@
+##############################################################################
+#
+# Copyright (c) 2001, 2002 Zope Corporation and Contributors.
+# All Rights Reserved.
+#
+# This software is subject to the provisions of the Zope Public License,
+# Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.
+# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
+# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
+# FOR A PARTICULAR PURPOSE.
+#
+##############################################################################
+"""This is the standard, placeful Translation Domain for TTW development.
+
+$Id$
+"""
+__docformat__ = 'restructuredtext'
+
+import re
+from BTrees.OOBTree import OOBTree
+from zope.interface import implements
+
+from zope.app import zapi
+from zope.app.container.btree import BTreeContainer
+from zope.app.i18n.interfaces import ILocalTranslationDomain
+from zope.i18n import interpolate
+from zope.i18n.negotiator import negotiator
+from zope.i18n.interfaces import INegotiator, ITranslationDomain
+from zope.i18n.simpletranslationdomain import SimpleTranslationDomain
+from zope.app.container.contained import Contained
+from zope.app.component import queryNextUtility
+
+class TranslationDomain(BTreeContainer, SimpleTranslationDomain, Contained):
+
+    implements(ILocalTranslationDomain)
+
+    def __init__(self):
+        super(TranslationDomain, self).__init__()
+        self._catalogs = OOBTree()
+        self.domain = '<domain not activated>'
+
+    def _registerMessageCatalog(self, language, catalog_name):
+        if language not in self._catalogs.keys():
+            self._catalogs[language] = []
+
+        mc = self._catalogs[language]
+        mc.append(catalog_name)
+
+    def _unregisterMessageCatalog(self, language, catalog_name):
+        self._catalogs[language].remove(catalog_name)
+
+    def __setitem__(self, name, object):
+        'See IWriteContainer'
+        super(TranslationDomain, self).__setitem__(name, object)
+        self._registerMessageCatalog(object.language, name)
+
+    def __delitem__(self, name):
+        'See IWriteContainer'
+        object = self[name]
+        super(TranslationDomain, self).__delitem__(name)
+        self._unregisterMessageCatalog(object.language, name)
+
+    def translate(self, msgid, mapping=None, context=None,
+                  target_language=None, default=None):
+        """See interface `ITranslationDomain`"""
+        if target_language is None and context is not None:
+            avail_langs = self.getAvailableLanguages()
+            # Let's negotiate the language to translate to. :)
+            negotiator = zapi.getUtility(INegotiator, context=self)
+            target_language = negotiator.getLanguage(avail_langs, context)
+
+        # Get the translation. Default is the source text itself.
+        catalog_names = self._catalogs.get(target_language, [])
+
+        for name in catalog_names:
+            catalog = super(TranslationDomain, self).__getitem__(name)
+            text = catalog.queryMessage(msgid)
+            if text is not None:
+                break
+        else:
+            # If nothing found, delegate to a translation server higher up the
+            # tree.
+            domain = queryNextUtility(ITranslationDomain, self.domain)
+            if domain is not None:
+                return domain.translate(msgid, mapping, context,
+                                        target_language, default=default)
+            if default is None:
+                default = msgid
+            text = default
+
+        # Now we need to do the interpolation
+        return interpolate(text, mapping)
+
+
+    def getMessageIds(self, filter='%'):
+        'See `IWriteTranslationDomain`'
+        filter = filter.replace('%', '.*')
+        filter_re = re.compile(filter)
+
+        msgids = {}
+        for language in self.getAvailableLanguages():
+            for name in self._catalogs[language]:
+                for msgid in self[name].getMessageIds():
+                    if filter_re.match(msgid) >= 0:
+                        msgids[msgid] = None
+        return msgids.keys()
+
+    def getMessages(self):
+        'See `IWriteTranslationDomain`'
+        messages = []
+        languages = self.getAvailableLanguages()
+        for language in languages:
+            for name in self._catalogs[language]:
+                messages += self[name].getMessages()
+        return messages
+
+
+    def getMessage(self, msgid, language):
+        'See `IWriteTranslationDomain`'
+        for name in self._catalogs.get(language, []):
+            try:
+                return self[name].getFullMessage(msgid)
+            except:
+                pass
+        return None
+
+    def getAllLanguages(self):
+        'See `IWriteTranslationDomain`'
+        languages = {}
+        for key in self._catalogs.keys():
+            languages[key] = None
+        return languages.keys()
+
+
+    def getAvailableLanguages(self):
+        'See `IWriteTranslationDomain`'
+        return list(self._catalogs.keys())
+
+
+    def addMessage(self, msgid, msg, language, mod_time=None):
+        'See `IWriteTranslationDomain`'
+        if not self._catalogs.has_key(language):
+            if language not in self.getAllLanguages():
+                self.addLanguage(language)
+
+        catalog_name = self._catalogs[language][0]
+        catalog = self[catalog_name]
+        catalog.setMessage(msgid, msg, mod_time)
+
+
+    def updateMessage(self, msgid, msg, language, mod_time=None):
+        'See `IWriteTranslationDomain`'
+        catalog_name = self._catalogs[language][0]
+        catalog = self[catalog_name]
+        catalog.setMessage(msgid, msg, mod_time)
+
+
+    def deleteMessage(self, msgid, language):
+        'See `IWriteTranslationDomain`'
+        catalog_name = self._catalogs[language][0]
+        catalog = self[catalog_name]
+        catalog.deleteMessage(msgid)
+
+
+    def addLanguage(self, language):
+        'See `IWriteTranslationDomain`'
+        catalog = zapi.createObject(u'zope.app.MessageCatalog',
+                                    language)
+        self[language] = catalog
+
+
+    def deleteLanguage(self, language):
+        'See `IWriteTranslationDomain`'
+        # Delete all catalogs from the data storage
+        for name in self._catalogs[language]:
+            if self.has_key(name):
+                del self[name]
+        # Now delete the specifc catalog registry for this language
+        del self._catalogs[language]
+
+
+    def getMessagesMapping(self, languages, foreign_messages):
+        'See `ISyncTranslationDomain`'
+        mapping = {}
+        # Get all relevant local messages
+        local_messages = []
+        for language in languages:
+            for name in self._catalogs.get(language, []):
+                local_messages += self[name].getMessages()
+
+
+        for fmsg in foreign_messages:
+            ident = (fmsg['msgid'], fmsg['language'])
+            mapping[ident] = (fmsg, self.getMessage(*ident))
+
+        for lmsg in local_messages:
+            ident = (lmsg['msgid'], lmsg['language'])
+            if ident not in mapping.keys():
+                mapping[ident] = (None, lmsg)
+
+        return mapping
+
+
+    def synchronize(self, messages_mapping):
+        'See `ISyncTranslationDomain`'
+
+        for value in messages_mapping.values():
+            fmsg = value[0]
+            lmsg = value[1]
+            if fmsg is None:
+                self.deleteMessage(lmsg['msgid'], lmsg['language'])
+            elif lmsg is None:
+                self.addMessage(fmsg['msgid'],
+                                fmsg['msgstr'], fmsg['language'],
+                                fmsg['mod_time'])
+            elif fmsg['mod_time'] > lmsg['mod_time']:
+                self.updateMessage(fmsg['msgid'],
+                                   fmsg['msgstr'], fmsg['language'],
+                                   fmsg['mod_time'])
+
+
+def setDomainOnActivation(domain, event):
+    """Set the permission id upon registration activation.
+
+    Let's see how this notifier can be used. First we need to create an event
+    using the permission instance and a registration stub:
+
+    >>> class Registration:
+    ...     def __init__(self, obj, name):
+    ...         self.component = obj
+    ...         self.name = name
+
+    >>> domain1 = TranslationDomain()
+    >>> domain1.domain
+    '<domain not activated>'
+
+    >>> from zope.app.component import registration 
+    >>> event = registration.RegistrationActivatedEvent(
+    ...     Registration(domain1, 'domain1'))
+
+    Now we pass the event into this function, and the id of the domain should
+    be set to 'domain1'.
+
+    >>> setDomainOnActivation(domain1, event)
+    >>> domain1.domain
+    'domain1'
+    """
+    domain.domain = event.object.name
+
+
+def unsetDomainOnDeactivation(domain, event):
+    """Unset the permission id up registration deactivation.
+
+    Let's see how this notifier can be used. First we need to create an event
+    using the permission instance and a registration stub:
+
+    >>> class Registration:
+    ...     def __init__(self, obj, name):
+    ...         self.component = obj
+    ...         self.name = name
+
+    >>> domain1 = TranslationDomain()
+    >>> domain1.domain = 'domain1'
+
+    >>> from zope.app.component import registration
+    >>> event = registration.RegistrationDeactivatedEvent(
+    ...     Registration(domain1, 'domain1'))
+
+    Now we pass the event into this function, and the id of the role should be
+    set to '<domain not activated>'.
+
+    >>> unsetDomainOnDeactivation(domain1, event)
+    >>> domain1.domain
+    '<domain not activated>'
+    """
+    domain.domain = '<domain not activated>'