def sub_tag(match):
tagname = match.group(1)
attrs = dict(RE_ATTR.findall(match.group(2)))
def get_obj(attr_name):
if attr_name in attrs:
value = attrs[attr_name][1:-1]
if not value in resolved_permalinks:
try:
resolved_permalinks[value] = permalinks.resolve(value)
except (permalinks.PermalinkError, ObjectDoesNotExist):
resolved_permalinks[value] = None
obj = resolved_permalinks[value]
if obj:
# Add in the URL of the obj.
attrs[attr_name] = '"%s"' % escape(obj.get_absolute_url())
# Add in the title of the obj.
attrs.setdefault("title", u'"%s"' % escape(getattr(obj, "title", unicode(obj))))
return obj
return None
if tagname == "a":
# Process hyperlinks.
get_obj("href")
elif tagname == "img":
# Process images.
obj = get_obj("src")
if obj:
try:
width = int(attrs["width"][1:-1])
height = int(attrs["height"][1:-1])
except (ValueError, KeyError, TypeError):
pass
else:
# Automagically detect a FileField.
fieldname = None
for field in obj._meta.fields:
if isinstance(field, models.FileField):
fieldname = field.name
# Generate the thumbnail.
if fieldname:
try:
thumbnail = optimizations.get_thumbnail(getattr(obj, fieldname), width, height, "resize")
except IOError:
pass
else:
attrs["src"] = '"%s"' % escape(thumbnail.url)
attrs["width"] = '"%s"' % thumbnail.width
attrs["height"] = '"%s"' % thumbnail.height
else:
assert False
# Regenerate the html tag.
attrs = u" ".join(u"%s=%s" % (key, value) for key, value in sorted(attrs.iteritems()))
return u"<%s %s%s>" % (tagname, attrs, match.group(3))
def get_preview(self, obj):
"""Generates a thumbnail of the image."""
_, extension = os.path.splitext(obj.file.name)
extension = extension.lower()[1:]
icon = FILE_ICONS.get(extension, UNKNOWN_FILE_ICON)
permalink = permalinks.create(obj)
if icon == IMAGE_FILE_ICON:
try:
thumbnail = optimizations.get_thumbnail(obj.file, 100, 66)
except IOError:
pass
else:
return '<img cms:permalink="%s" src="%s" width="%s" height="%s" alt="" title="%s"/>' % (permalink, thumbnail.url, thumbnail.width, thumbnail.height, obj.title)
else:
icon = optimizations.get_url(icon)
return '<img cms:permalink="%s" src="%s" width="66" height="66" alt="" title="%s"/>' % (permalink, icon, obj.title)
def get_preview(self, obj):
"""Generates a thumbnail of the image."""
_, extension = os.path.splitext(obj.file.name)
extension = extension.lower()[1:]
icon = FILE_ICONS.get(extension, UNKNOWN_FILE_ICON)
permalink = permalinks.create(obj)
if icon == IMAGE_FILE_ICON:
try:
thumbnail = optimizations.get_thumbnail(obj.file, 100, 66)
except IOError:
pass
else:
return '<img cms:permalink="%s" src="%s" width="%s" height="%s" alt="" title="%s"/>' % (
permalink, thumbnail.url, thumbnail.width,
thumbnail.height, obj.title)
else:
icon = optimizations.get_url(icon)
return '<img cms:permalink="%s" src="%s" width="66" height="66" alt="" title="%s"/>' % (
permalink, icon, obj.title)
