mygpo/web/templatetags/facebook.py

   1 import hashlib
   2
   3 from django import template
   4 from django.utils.safestring import mark_safe
   5 from django.utils.translation import ugettext as _
   6
   7 from mygpo.web.logo import get_logo_url
   8 from mygpo.constants import PODCAST_LOGO_BIG_SIZE
   9 from mygpo.web.templatetags.podcasts import create_podcast_logo
  10 from mygpo.web.utils import get_episode_link_target, get_podcast_link_target
  11
  12
  13 register = template.Library()
  14
  15 LIKE_BUTTON_STR = """<iframe class="fb_like" src="//www.facebook.com/plugins/like.php?href=%(url)s&amp;layout=button_count&amp;show_faces=false&amp;width=450&amp;action=like&amp;colorscheme=light&amp;height=21" scrolling="no" frameborder="0" style="border:none; overflow:hidden; width:450px; height:21px;" allowTransparency="true"></iframe>"""
  16
  17 #FIXME: remove hardcoded URL
  18 # we could convert the filter to a tag once the takes_context
  19 # paramter to register.simple_tag() is included in a release, see
  20 # http://stackoverflow.com/questions/2160261/access-request-in-django-custom-template-tags
  21 # http://docs.djangoproject.com/en/dev/howto/custom-template-tags/#shortcut-for-simple-tags
  22
  23 @register.simple_tag
  24 @mark_safe
  25 def fb_like_episode(episode, podcast):
  26     url = 'http://gpodder.net/%s' % get_episode_link_target(episode, podcast)
  27     s = LIKE_BUTTON_STR % dict(url=url)
  28     return s
  29
  30
  31 @register.filter
  32 @mark_safe
  33 def fb_like_podcast(podcast):
  34     url = 'http://gpodder.net%s' % get_podcast_link_target(podcast)
  35     s = LIKE_BUTTON_STR % dict(url=url)
  36     return s
  37
  38
  39
  40 OPENGRAPH_STR = """
  41 <meta property="og:title" content="%(title)s"/>
  42 <meta property="og:type" content="%(type)s"/>
  43 <meta property="og:image" content="%(image)s"/>
  44 <meta property="og:url" content="%(url)s"/>
  45 <meta property="og:site_name" content="%(site_name)s"/>
  46 <meta property="og:admins" content="%(admins)s"/>
  47 """
  48
  49 @register.simple_tag
  50 def opengraph_episode(episode, podcast):
  51     s = OPENGRAPH_STR % dict(
  52         title     = episode.title,
  53         type      = 'episode',
  54         image     = 'http://gpodder.net%s' % get_logo_url(podcast, PODCAST_LOGO_BIG_SIZE),
  55         url       = 'http://gpodder.net%s' % get_episode_link_target(episode, podcast),
  56         site_name = 'gpodder.net',
  57         admins    = '0'
  58     )
  59     return s
  60
  61 @register.filter
  62 @mark_safe
  63 def opengraph_podcast(podcast):
  64     s = OPENGRAPH_STR % dict(
  65         title     = podcast.title,
  66         type      = 'episode',
  67         image     = 'http://gpodder.net%s' % get_logo_url(podcast, PODCAST_LOGO_BIG_SIZE),
  68         url       = 'http://gpodder.net%s' % get_podcast_link_target(podcast),
  69         site_name = 'gpodder.net',
  70         admins    = '0'
  71     )
  72     return s