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 pyramid.renderers import render

    16 from zope.interface import Interface

    17 

    18 from pyams_file.interfaces import IFile

    19 from pyams_template.template import get_view_template

    20 from pyams_utils.adapter import ContextRequestViewAdapter, adapter_config

    21 from pyams_utils.interfaces.tales import ITALESExtension

    22 

    23 

    24 @adapter_config(name='video',

    25                 context=(Interface, Interface, Interface),

    26                 provides=ITALESExtension)

    27 class VideoTALESExtension(ContextRequestViewAdapter):

    28     """Video TALES adapter

    29 

    30     This TALES adapter can be used to create a 'video' HTML tag

    31     embedding all video attributes.

    32     """

    33 

    34     _render = get_view_template()

    35 

    36     def render(self, context=None, *args, **kwargs):

    37         """Video renderer

    38 

    39         Method signature accepts unused *args and **kwargs to match 'picture' TALES extension.

    40         """

    41         if context is None:

    42             context = self.context

    43         return render('templates/video.pt', {

    44             'video': context

    45         }, request=self.request)

    46 

    47 

    48 @adapter_config(name='media',

    49                 context=(Interface, Interface, Interface),

    50                 provides=ITALESExtension)

    51 class MediaTALESExtension(ContextRequestViewAdapter):

    52     """Media TALES adapter

    53 

    54     This TALES adapter can be used to create any media HTML tag.

    55     Actually images and videos are supported, and the right renderer will be used according

    56     to context content type.

    57     """

    58 

    59     def render(self, context=None, lg_thumb='lg', lg_width=12, md_thumb='md', md_width=12,

    60                sm_thumb='sm', sm_width=12, xs_thumb='xs', xs_width=12, alt='', css_class=''):

    61         if context is None:

    62             context = self.context

    63         if not IFile.providedBy(context):

    64             return ''

    65         registry = self.request.registry

    66         if context.content_type.startswith('video/'):

    67             extension = registry.queryMultiAdapter((context, self.request, self.view), ITALESExtension, name='video')

    68         elif context.content_type.startswith('image/'):

    69             extension = registry.queryMultiAdapter((context, self.request, self.view), ITALESExtension, name='picture')

    70         else:

    71             extension = None

    72         if extension is not None:

    73             return extension.render(context, lg_thumb, lg_width, md_thumb, md_width, sm_thumb, sm_width, xs_thumb,

    74                                     xs_width, alt, css_class)

    75         else:

    76             return ''