1 #

     2 # Copyright (c) 2008-2018 Thierry Florac <tflorac AT ulthar.net>

     3 # All Rights Reserved.

     4 #

     5 # This software is subject to the provisions of the Zope Public License,

     6 # Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.

     7 # THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED

     8 # WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

     9 # WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS

    10 # FOR A PARTICULAR PURPOSE.

    11 #

    12 

    13 __docformat__ = 'restructuredtext'

    14 

    15 from zope.container.ordered import OrderedContainer

    16 from zope.interface import implementer

    17 from zope.location import locate

    18 from zope.location.interfaces import ISublocations

    19 from zope.traversing.interfaces import ITraversable

    20 

    21 from pyams_catalog.utils import index_object

    22 from pyams_content.features.share import ISocialShareItem

    23 from pyams_content.features.share.interfaces import ISocialShareManager, ISocialShareManagerTarget, \

    24     SOCIAL_SHARE_MANAGER_KEY

    25 from pyams_utils.adapter import ContextAdapter, adapter_config, get_annotation_adapter

    26 

    27 

    28 @implementer(ISocialShareManager)

    29 class SocialShareManager(OrderedContainer):

    30     """Social network share manager"""

    31 

    32     last_id = 1

    33 

    34     def append(self, value, notify=True):

    35         key = str(self.last_id)

    36         if not notify:

    37             # pre-locate item to avoid multiple notifications

    38             locate(value, self, key)

    39         self[key] = value

    40         self.last_id += 1

    41         if not notify:

    42             # make sure that item is correctly indexed

    43             index_object(value)

    44 

    45     def get_active_items(self):

    46         yield from filter(lambda x: ISocialShareItem(x).active, self.values())

    47 

    48 

    49 @adapter_config(context=ISocialShareManagerTarget, provides=ISocialShareManager)

    50 def social_share_manager_factory(context):

    51     """Social network share manager factory"""

    52     return get_annotation_adapter(context, SOCIAL_SHARE_MANAGER_KEY, SocialShareManager, name='++social-share++')

    53 

    54 

    55 @adapter_config(name='social-share', context=ISocialShareManagerTarget, provides=ITraversable)

    56 class SocialShareManagerNamespace(ContextAdapter):

    57     """Social network share manager ++social-share++ namespace"""

    58 

    59     def traverse(self, name, furtherpath=None):

    60         return ISocialShareManager(self.context)

    61 

    62 

    63 @adapter_config(name='social-share', context=ISocialShareManagerTarget, provides=ISublocations)

    64 class SocialShareManagerSublocations(ContextAdapter):

    65     """Social network share manager sub-locations adapter"""

    66 

    67     def sublocations(self):

    68         return ISocialShareManager(self.context).values()