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 persistent import Persistent

    16 from pyramid.encode import url_quote

    17 from zope.container.contained import Contained

    18 from zope.interface import implementer

    19 from zope.schema.fieldproperty import FieldProperty

    20 

    21 from pyams_content.features.share.interfaces import ISocialShareItem

    22 from pyams_content.interfaces import MANAGE_SITE_ROOT_PERMISSION

    23 from pyams_content.reference.pictograms import IPictogramTable

    24 from pyams_form.interfaces.form import IFormContextPermissionChecker

    25 from pyams_i18n.interfaces import II18n

    26 from pyams_utils.adapter import ContextAdapter, adapter_config

    27 from pyams_utils.registry import query_utility

    28 from pyams_utils.url import canonical_url

    29 from pyams_utils.zodb import volatile_property

    30 

    31 

    32 @implementer(ISocialShareItem)

    33 class SocialShareItem(Persistent, Contained):

    34     """Social network share item"""

    35 

    36     active = FieldProperty(ISocialShareItem['active'])

    37     label = FieldProperty(ISocialShareItem['label'])

    38     target_url = FieldProperty(ISocialShareItem['target_url'])

    39     _pictogram_name = FieldProperty(ISocialShareItem['pictogram_name'])

    40 

    41     @property

    42     def pictogram_name(self):

    43         return self._pictogram_name

    44 

    45     @pictogram_name.setter

    46     def pictogram_name(self, value):

    47         if value != self._pictogram_name:

    48             self._pictogram_name = value

    49             del self.pictogram

    50 

    51     @volatile_property

    52     def pictogram(self):

    53         table = query_utility(IPictogramTable)

    54         if table is not None:

    55             return table.get(self._pictogram_name)

    56 

    57     def get_url(self, context, request):

    58         url = II18n(self).query_attribute('target_url', request=request)

    59         return url.format(url=url_quote(canonical_url(context, request)),

    60                           title=url_quote(II18n(context).query_attribute('title', request=request)))

    61 

    62 

    63 @adapter_config(context=ISocialShareItem, provides=IFormContextPermissionChecker)

    64 class SocialShareItemPermissionChecker(ContextAdapter):

    65     """Social share item permission checker"""

    66 

    67     edit_permission = MANAGE_SITE_ROOT_PERMISSION