Minify on backend
This commit is contained in:
Ruud
Executable
+184
@@ -0,0 +1,184 @@
|
||||
"""CSSFontFaceRule implements DOM Level 2 CSS CSSFontFaceRule.
|
||||
|
||||
From cssutils 0.9.6 additions from CSS Fonts Module Level 3 are
|
||||
added http://www.w3.org/TR/css3-fonts/.
|
||||
"""
|
||||
__all__ = ['CSSFontFaceRule']
|
||||
__docformat__ = 'restructuredtext'
|
||||
__version__ = '$Id$'
|
||||
|
||||
from cssstyledeclaration import CSSStyleDeclaration
|
||||
import cssrule
|
||||
import cssutils
|
||||
import xml.dom
|
||||
|
||||
class CSSFontFaceRule(cssrule.CSSRule):
|
||||
"""
|
||||
The CSSFontFaceRule interface represents a @font-face rule in a CSS
|
||||
style sheet. The @font-face rule is used to hold a set of font
|
||||
descriptions.
|
||||
|
||||
Format::
|
||||
|
||||
font_face
|
||||
: FONT_FACE_SYM S*
|
||||
'{' S* declaration [ ';' S* declaration ]* '}' S*
|
||||
;
|
||||
|
||||
cssutils uses a :class:`~cssutils.css.CSSStyleDeclaration` to
|
||||
represent the font descriptions. For validation a specific profile
|
||||
is used though were some properties have other valid values than
|
||||
when used in e.g. a :class:`~cssutils.css.CSSStyleRule`.
|
||||
"""
|
||||
def __init__(self, style=None, parentRule=None,
|
||||
parentStyleSheet=None, readonly=False):
|
||||
"""
|
||||
If readonly allows setting of properties in constructor only.
|
||||
|
||||
:param style:
|
||||
CSSStyleDeclaration used to hold any font descriptions
|
||||
for this CSSFontFaceRule
|
||||
"""
|
||||
super(CSSFontFaceRule, self).__init__(parentRule=parentRule,
|
||||
parentStyleSheet=parentStyleSheet)
|
||||
self._atkeyword = u'@font-face'
|
||||
|
||||
if style:
|
||||
self.style = style
|
||||
else:
|
||||
self.style = CSSStyleDeclaration()
|
||||
|
||||
self._readonly = readonly
|
||||
|
||||
def __repr__(self):
|
||||
return u"cssutils.css.%s(style=%r)" % (
|
||||
self.__class__.__name__,
|
||||
self.style.cssText)
|
||||
|
||||
def __str__(self):
|
||||
return u"<cssutils.css.%s object style=%r valid=%r at 0x%x>" % (
|
||||
self.__class__.__name__,
|
||||
self.style.cssText,
|
||||
self.valid,
|
||||
id(self))
|
||||
|
||||
def _getCssText(self):
|
||||
"""Return serialized property cssText."""
|
||||
return cssutils.ser.do_CSSFontFaceRule(self)
|
||||
|
||||
def _setCssText(self, cssText):
|
||||
"""
|
||||
:exceptions:
|
||||
- :exc:`~xml.dom.SyntaxErr`:
|
||||
Raised if the specified CSS string value has a syntax error and
|
||||
is unparsable.
|
||||
- :exc:`~xml.dom.InvalidModificationErr`:
|
||||
Raised if the specified CSS string value represents a different
|
||||
type of rule than the current one.
|
||||
- :exc:`~xml.dom.HierarchyRequestErr`:
|
||||
Raised if the rule cannot be inserted at this point in the
|
||||
style sheet.
|
||||
- :exc:`~xml.dom.NoModificationAllowedErr`:
|
||||
Raised if the rule is readonly.
|
||||
"""
|
||||
super(CSSFontFaceRule, self)._setCssText(cssText)
|
||||
|
||||
tokenizer = self._tokenize2(cssText)
|
||||
attoken = self._nexttoken(tokenizer, None)
|
||||
if self._type(attoken) != self._prods.FONT_FACE_SYM:
|
||||
self._log.error(u'CSSFontFaceRule: No CSSFontFaceRule found: %s' %
|
||||
self._valuestr(cssText),
|
||||
error=xml.dom.InvalidModificationErr)
|
||||
else:
|
||||
newStyle = CSSStyleDeclaration(parentRule=self)
|
||||
ok = True
|
||||
|
||||
beforetokens, brace = self._tokensupto2(tokenizer,
|
||||
blockstartonly=True,
|
||||
separateEnd=True)
|
||||
if self._tokenvalue(brace) != u'{':
|
||||
ok = False
|
||||
self._log.error(u'CSSFontFaceRule: No start { of style '
|
||||
u'declaration found: %r'
|
||||
% self._valuestr(cssText), brace)
|
||||
|
||||
# parse stuff before { which should be comments and S only
|
||||
new = {'wellformed': True}
|
||||
newseq = self._tempSeq()
|
||||
|
||||
beforewellformed, expected = self._parse(expected=':',
|
||||
seq=newseq, tokenizer=self._tokenize2(beforetokens),
|
||||
productions={})
|
||||
ok = ok and beforewellformed and new['wellformed']
|
||||
|
||||
styletokens, braceorEOFtoken = self._tokensupto2(tokenizer,
|
||||
blockendonly=True,
|
||||
separateEnd=True)
|
||||
|
||||
val, type_ = self._tokenvalue(braceorEOFtoken),\
|
||||
self._type(braceorEOFtoken)
|
||||
if val != u'}' and type_ != 'EOF':
|
||||
ok = False
|
||||
self._log.error(u'CSSFontFaceRule: No "}" after style '
|
||||
u'declaration found: %r'
|
||||
% self._valuestr(cssText))
|
||||
|
||||
nonetoken = self._nexttoken(tokenizer)
|
||||
if nonetoken:
|
||||
ok = False
|
||||
self._log.error(u'CSSFontFaceRule: Trailing content found.',
|
||||
token=nonetoken)
|
||||
|
||||
if 'EOF' == type_:
|
||||
# add again as style needs it
|
||||
styletokens.append(braceorEOFtoken)
|
||||
|
||||
# SET, may raise:
|
||||
newStyle.cssText = styletokens
|
||||
|
||||
if ok:
|
||||
# contains probably comments only (upto ``{``)
|
||||
self._setSeq(newseq)
|
||||
self.style = newStyle
|
||||
|
||||
cssText = property(_getCssText, _setCssText,
|
||||
doc=u"(DOM) The parsable textual representation of this "
|
||||
u"rule.")
|
||||
|
||||
def _setStyle(self, style):
|
||||
"""
|
||||
:param style:
|
||||
a CSSStyleDeclaration or string
|
||||
"""
|
||||
self._checkReadonly()
|
||||
if isinstance(style, basestring):
|
||||
self._style = CSSStyleDeclaration(cssText=style, parentRule=self)
|
||||
else:
|
||||
style._parentRule = self
|
||||
self._style = style
|
||||
|
||||
style = property(lambda self: self._style, _setStyle,
|
||||
doc=u"(DOM) The declaration-block of this rule set, "
|
||||
u"a :class:`~cssutils.css.CSSStyleDeclaration`.")
|
||||
|
||||
type = property(lambda self: self.FONT_FACE_RULE,
|
||||
doc=u"The type of this rule, as defined by a CSSRule "
|
||||
u"type constant.")
|
||||
|
||||
def _getValid(self):
|
||||
needed = ['font-family', 'src']
|
||||
for p in self.style.getProperties(all=True):
|
||||
if not p.valid:
|
||||
return False
|
||||
try:
|
||||
needed.remove(p.name)
|
||||
except ValueError:
|
||||
pass
|
||||
return not bool(needed)
|
||||
|
||||
valid = property(_getValid,
|
||||
doc=u"CSSFontFace is valid if properties `font-family` "
|
||||
u"and `src` are set and all properties are valid.")
|
||||
|
||||
# constant but needed:
|
||||
wellformed = property(lambda self: True)
|
||||
Reference in New Issue
Block a user