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.constants import PODCAST_LOGO_BIG_SIZE
   8 from mygpo.web.templatetags.podcasts import create_podcast_logo
   9 from mygpo.web.utils import get_episode_link_target, get_podcast_link_target
  10
  11
  12 register = template.Library()
  13
  14 LIKE_BUTTON_STR = """<iframe class="fb_like" src="http://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>"""
  15
  16 #FIXME: remove hardcoded URL
  17 # we could convert the filter to a tag once the takes_context
  18 # paramter to register.simple_tag() is included in a release, see
  19 # http://stackoverflow.com/questions/2160261/access-request-in-django-custom-template-tags
  20 # http://docs.djangoproject.com/en/dev/howto/custom-template-tags/#shortcut-for-simple-tags
  21
  22 @register.simple_tag
  23 def fb_like_episode(episode, podcast):
  24     url = 'http://gpodder.net/%s' % get_episode_link_target(episode, podcast)
  25     s = LIKE_BUTTON_STR % dict(url=url)
  26     return mark_safe(s)
  27
  28
  29 @register.filter
  30 def fb_like_podcast(podcast):
  31     url = 'http://gpodder.net%s' % get_podcast_link_target(podcast)
  32     s = LIKE_BUTTON_STR % dict(url=url)
  33     return mark_safe(s)
  34
  35
  36
  37 OPENGRAPH_STR = """
  38 <meta property="og:title" content="%(title)s"/>
  39 <meta property="og:type" content="%(type)s"/>
  40 <meta property="og:image" content="%(image)s"/>
  41 <meta property="og:url" content="%(url)s"/>
  42 <meta property="og:site_name" content="%(site_name)s"/>
  43 <meta property="og:admins" content="%(admins)s"/>
  44 """
  45
  46 @register.simple_tag
  47 def opengraph_episode(episode, podcast):
  48     s = OPENGRAPH_STR % dict(
  49         title     = episode.title,
  50         type      = 'episode',
  51         image     = 'http://gpodder.net%s' % podcast.get_logo_url(PODCAST_LOGO_BIG_SIZE),
  52         url       = 'http://gpodder.net%s' % get_episode_link_target(episode, podcast),
  53         site_name = 'gpodder.net',
  54         admins    = '0'
  55     )
  56     return s
  57
  58 @register.filter
  59 def opengraph_podcast(podcast):
  60     s = OPENGRAPH_STR % dict(
  61         title     = podcast.title,
  62         type      = 'episode',
  63         image     = 'http://gpodder.net%s' % podcast.get_logo_url(PODCAST_LOGO_BIG_SIZE),
  64         url       = 'http://gpodder.net%s' % get_podcast_link_target(podcast),
  65         site_name = 'gpodder.net',
  66         admins    = '0'
  67     )
  68     return mark_safe(s)