o /hу@sfdZdgZddlZddlZddlmZddlm Z m Z ddl m Z ddl mZGd ddejjZdS) zCSSStyleSheet implements DOM Level 2 CSS CSSStyleSheet. Partly also: - http://dev.w3.org/csswg/cssom/#the-cssstylesheet - http://www.w3.org/TR/2006/WD-css3-namespace-20060828/ TODO: - ownerRule and ownerNode CSSStyleSheetN) Deprecated) _Namespaces_readUrl)CSSRule)CSSVariablesDeclarationcsNeZdZdZ         d>fdd Zdd Zd d Zd d ZddZddZ e ddZ e j ddZ ddZ ddZe e edZddZ d?ddZd@ddZd d!Zd"d#Ze eed$Ze d%d&Zd'd(Ze d)d*d+d,Zd-d.Zd/d0ZdAd1d2Ze d3d*d4d,Zd5d6Ze ed7d,Zed8d9d:Z ed;d) rr,r$r-encodingrr namespacesidr.r%r%r&__str__Us zCSSStyleSheet.__str__cCsp|j}t|j}d}|t|kr6||}|j|jkr*|j|jf|vr*| |n|d7}|t|ksdSdS)z;Remove all namespace rules with same namespaceURI but last.rrN) rlistr1itemslentypeNAMESPACE_RULEprefix namespaceURI deleteRule)rrulesnamespaceitemsiruler%r%r&_cleanNamespaceshs   zCSSStyleSheet._cleanNamespacescCsdt}|D]*}|j|jkr||jq|j|jkr/|D]}|j|jkr.||jqq|S)z%Return set of URIs used in the sheet.)set STYLE_RULEr7update selectorList _getUsedUris MEDIA_RULE)rusedurisr1r2r%r%r& _getUsedURIsws   zCSSStyleSheet._getUsedURIscC|jS)zDAll Rules in this style sheet, a :class:`~cssutils.css.CSSRuleList`.r'r)r%r%r&rzCSSStyleSheet.cssRulescCs2|j|_|j|_|j|_|D]}||_q||_dS)z1Set new cssRules and update contained rules refs.N) insertRuleappendextendr; __delitem___parentStyleSheetr()rrr?r%r%r&rs  cCs tj|S)z9Textual representation of the stylesheet (a byte string).)rserdo_CSSStyleSheetr)r%r%r& _getCssTexts zCSSStyleSheet._getCssTextcsH|\}}|}ddd}dfdd }fdd}fdd }fd d }fd d } fdd} fdd} fdd} fdd} fdd}j}j}tj_|_t_ g}j d||||dddd|| ||| | | | d |d\}}|rt j d_ dS|_|_ dS) a Parse `cssText` and overwrites the whole stylesheet. :param cssText: a parseable string or a tuple of (cssText, dict-of-namespaces) :exceptions: - :exc:`~xml.dom.NamespaceErr`: If a namespace prefix is found which is not declared. - :exc:`~xml.dom.NoModificationAllowedErr`: Raised if the rule is readonly. - :exc:`~xml.dom.SyntaxErr`: Raised if the specified CSS string value has a syntax error and is unparsable. NcSstd|pdS)Nrr)maxexpectedseqtoken tokenizerr%r%r&Ssz$CSSStyleSheet._setCssText..Scs&tjj|gdtd|pdS)zspecial: sets parent*r rr)rMrr CSSCommentrUrVr)r%r&COMMENTsz*CSSStyleSheet._setCssText..COMMENTcsPtjjd}|||_|dkrjd|tjj |S|j r& |dS)Nr\rzFCSSStylesheet: CSSCharsetRule only allowed at beginning of stylesheet.r) rrCSSCharsetRule _tokensupto2cssTextrerrorxmldomHierarchyRequestErr wellformedrMrWrXrYrZr?r)r%r& charsetrules z.CSSStyleSheet._setCssText..charsetrulecsPtjjd}|||_|dkrjd|tjj |S|j r& |dS)Nr\rz.CSSStylesheet: CSSImportRule not allowed here.) rr CSSImportRuler`rarrbrcrdrerfrMrgr)r%r& importrules z-CSSStyleSheet._setCssText..importrulecstjj||d}|dkrjd|tjj|S|j rJ|j j vr-j |ddnj |jD]}|j |j krB||jq4|jj|j <dS)N)rar z1CSSStylesheet: CSSNamespaceRule not allowed here.F)_clean)rrCSSNamespaceRuler`rrbrcrdrerfr9r1rMr rulesOfTyper8_replaceNamespaceURIr:r)rWrXrYrZr?rr)r%r& namespacerules&    z0CSSStyleSheet._setCssText..namespacerulecsXtjjd}|||_|dkrjd|tjj |S|j r* | dS)Nr\rkz1CSSStylesheet: CSSVariablesRule not allowed here.) rrCSSVariablesRuler`rarrbrcrdrerfrM_updateVariablesrgr)r%r& variablesrules z0CSSStyleSheet._setCssText..variablesrulec0tjjd}|||_|jr|dSNr\)rrCSSFontFaceRuler`rarfrMrgr)r%r& fontfacerule  z/CSSStyleSheet._setCssText..fontfacerulecrurv)rr CSSMediaRuler`rarfrMrgr)r%r& mediarulerzz,CSSStyleSheet._setCssText..mediarulecrurv)rr CSSPageRuler`rarfrMrgr)r%r&pagerulerzz+CSSStyleSheet._setCssText..pagerulecs|dtjjjvr!jjd|ddtjjd}|||_njjd|ddtjj d}|||_|j r@ |t d|pEdS)Nrz*CSSStylesheet: MarginRule out CSSPageRule.T) neverraiser\z#CSSStylesheet: Unknown @rule found.r) rr MarginRulemarginsrrbr`rawarnCSSUnknownRulerfrMrUrgr)r%r& unknownrules z.CSSStyleSheet._setCssText..unknownrulecrurv)rr CSSStyleRuler`rarfrMrgr)r%r&ruleset3rzz*CSSStyleSheet._setCssText..rulesetrcWdSNr%ignoredr%r%r&Oz+CSSStyleSheet._setCssText..cWrrr%rr%r%r&rPr) r[r^CDOCDC CHARSET_SYM FONT_FACE_SYM IMPORT_SYM NAMESPACE_SYMPAGE_SYM MEDIA_SYM VARIABLES_SYM ATKEYWORD)defaultr r)_checkReadonly_splitNamespacesOff _tokenize2rrrrrrr_parserrr@r(rs)rrar1rZr[r^rhrjrqrtryr|r~rr oldCssRules oldNamespacesnewseqrfrWr%r)r& _setCssTexts\                zCSSStyleSheet._setCssTextz8Textual representation of the stylesheet (a byte string)c Cs^z|j}Wnty$z|jdj}Wn ttfy!d}YnwYnwt||j|j|dS)zORead (encoding, enctype, decodedContent) from `url` for @import sheets.rN)fetcheroverrideEncodingparentEncoding)_CSSStyleSheet__newEncodingAttributeErrorr(r0 IndexErrorrrr)rurlrr%r%r&_resolveImportos   zCSSStyleSheet._resolveImportcCs^|r||_|r ||_||_|r|j|_d|_dS|r-||_z|`WdSty,YdSwdS)zSet `cssText` but use `encodingOverride` to overwrite detected encoding. 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If `encoding` is None removes charsetrule if present resulting in default encoding of utf-8. rN)r0) r(r CHARSET_RULEr7r0r;rMrrr_)rr0r?r%r%r& _setEncodings  zCSSStyleSheet._setEncodingzW(cssutils) Reflect encoding of an @charset rule or 'utf-8' (default) if set to ``None``cCrK)z*All Namespaces used in this CSSStyleSheet.)rr)r%r%r&r1rLzCSSStyleSheet.namespacescCsv|jtjD]}|j}|r|jD] }|j||j|qq|jtjD]}|jD] }|j||j|q+q&dS)zdUpdates self._variables, called when @import or @variables rules is added to sheet. N) rrnr IMPORT_RULE styleSheet variablesr setVariableVARIABLES_RULE)rrpsvarvrr%r%r&rss  zCSSStyleSheet._updateVariablescCrKr)rr)r%r%r&rzCSSStyleSheet.zA :class:`cssutils.css.CSSVariablesDeclaration` containing all available variables in this CSSStyleSheet including the ones defined in imported sheets.)doccCs|j|dddS)zoAdd `rule` to style sheet at appropriate position. Same as ``insertRule(rule, inOrder=True)``. NT)indexinOrder)rMrr?r%r%r&addszCSSStyleSheet.addc Cs|t|tr#t|jD] \}}||kr|}n qtjd|z|j|}Wnt yC}z tjd||jj f|d}~ww|j |j krhdd|D}| }|j|vrh||jdkrhtjdd|_|j|=dS)a~Delete rule at `index` from the style sheet. :param index: The `index` of the rule to be removed from the StyleSheet's rule list. For an `index` < 0 **no** :exc:`~xml.dom.IndexSizeErr` is raised but rules for normal Python lists are used. E.g. ``deleteRule(-1)`` removes the last rule in cssRules. `index` may also be a CSSRule object which will then be removed from the StyleSheet. :exceptions: - :exc:`~xml.dom.IndexSizeErr`: Raised if the specified index does not correspond to a rule in the style sheet's rule list. - :exc:`~xml.dom.NamespaceErr`: Raised if removing this rule would result in an invalid StyleSheet - :exc:`~xml.dom.NoModificationAllowedErr`: Raised if this style sheet is readonly. zsz,CSSStyleSheet.deleteRule..rzHCSSStyleSheet: NamespaceURI defined in this rule is used, cannot remove.)r isinstancer enumeraterrcrd IndexSizeErrr(rlengthr7r8rJr:countNoModificationAllowedErrrQ)rrr>rpr?errurisrGr%r%r&r;sB    zCSSStyleSheet.deleteRulec Cs<||durt|j}n|dks||jjkr$tjd||jjft|trt |j |j |j |j |jd}|j|_|j|_|ds`|jr`|jdj|jdjkr`d\}}|jdj|}nd\}}||jf|_t|j|ks{t|j|tjjs|jd|dS|j|}d|_nt|tjjrt|D] \}} | | ||q|S|j!s|jd dS|j|jkr|rd}|jr|jdj|jkr|j"|jd_"n|j#d|n|dks|jr|jdj|jkr|jjd tjj$d dS|j#||n|j|j%|j&fvr6|s6|dkr-|jr-|jdj|jkr-|jjd tjj$d dS|j#||nT|j|j'kr|r|jd d|Dvritt(|jD]\}} | j|jkrft|j|}nqRnb|jr}|jdj|j|j&fvr}d}nNd}nK|dkr|jr|jdj|jkr|jjdtjj$d dS|jd|D]$} | j| j)| j*| j+| j,| j-| j.fvr|jjd|tjj$d dSq|j#|||/n|j|j)kr|r/|jdd|Dvr tt(|jD]\}} | j|jkrt|j|}nqnrt|jD]\}} | j| j*| j+| j,| j-| j.| j%| j&fvr,|}nqnN|j|dD]} | j| j| j'fvrQ|jjd|tjj$d dSq6|jd|D]"} | j| j*| j+| j,| j-| j.fvr{|jjd|tjj$d dSqZ|j0|j1vr|j1|j0|j2ks|j#|||r|3n|j|j*krL|r|jdd|Dvrtt(|jD]\}} | j|jkrt|j|}nqnpt|jD]\}} | j| j+| j,| j-| j.| j%| j&fvr|}nqnN|j|dD]} | j| j| j'| j)fvr|jjd|tjj$d dSq|jd|D] } | j| j+| j,| j-| j.fvr>|jjd|tjj$d dSq|j#|||/n>|r]|j4|t|jd}n-|j|dD]} | j| j| j'| j)fvr|jjd|tjj$d dSqd|j#||||_|j'|jkr|j5s|j |_ |S)a( Used to insert a new rule into the style sheet. The new rule now becomes part of the cascade. :param rule: a parsable DOMString, in cssutils also a :class:`~cssutils.css.CSSRule` or :class:`~cssutils.css.CSSRuleList` :param index: of the rule before the new rule will be inserted. If the specified `index` is equal to the length of the StyleSheet's rule collection, the rule will be added to the end of the style sheet. If `index` is not given or ``None`` rule will be appended to rule list. :param inOrder: if ``True`` the rule will be put to a proper location while ignoring `index` and without raising :exc:`~xml.dom.HierarchyRequestErr`. The resulting index is returned nevertheless. :returns: The index within the style sheet's rule collection :Exceptions: - :exc:`~xml.dom.HierarchyRequestErr`: Raised if the rule cannot be inserted at the specified `index` e.g. if an @import rule is inserted after a standard rule set or other at-rule. - :exc:`~xml.dom.IndexSizeErr`: Raised if the specified `index` is not a valid insertion point. - :exc:`~xml.dom.NoModificationAllowedErr`: Raised if this style sheet is readonly. - :exc:`~xml.dom.SyntaxErr`: Raised if the specified rule has a syntax error and is unparsable. NrzDCSSStyleSheet: Invalid index %s for CSSRuleList with a length of %s.)rrrr r"z@charset)rkr)rrz CSSStyleSheet: Not a CSSRule: %sz-CSSStyleSheet: Invalid rules cannot be added.zKCSSStylesheet: @charset only allowed once at the beginning of a stylesheet.)rbz/CSSStylesheet: @charset must be the first rule.cs|]}|jVqdSrr7rr%r%r& z+CSSStyleSheet.insertRule..rz)CSSStylesheet: Found @charset at index 0.zwCSSStylesheet: Cannot insert @import here, found @namespace, @variables, @media, @page or CSSStyleRule before index %s.csrrrrr%r%r&rrzWCSSStylesheet: Cannot insert @namespace here, found @charset or @import after index %s.znCSSStylesheet: Cannot insert @namespace here, found @variables, @media, @page or CSSStyleRule before index %s.csrrrrr%r%r&rrzcCSSStylesheet: Cannot insert @variables here, found @charset, @import or @namespace after index %s.zbCSSStylesheet: Cannot insert @variables here, found @media, @page or CSSStyleRule before index %s.z^CSSStylesheet: Cannot insert rule here, found @charset, @import or @namespace before index %s.)6rr6r(rrcrdrrstrrrrrr r"r _ownerNoder startswithr7rrarrrrrrrbrQrrrMrfr0insertre UNKNOWN_RULEr^rreversedr8rrF PAGE_RULErBFONT_FACE_RULErsr9r1r:r@rN hrefFound) rr?rrrl tempsheet newrulescount newruleindexr>rpr%r%r&rM%s"                zCSSStyleSheet.insertRulecCrKr)rr)r%r%r&rfrz:A ref to an @import rule if it is imported, else ``None``.cCs&|jD] }t|dr|jsdSqdS)z&Check if each contained rule is valid.validFT)rhasattrrrr%r%r& _getValidjs zCSSStyleSheet._getValidz)``True`` if all contained rules are validz3Use ``cssutils.setSerializer(serializer)`` instead.cCst|tjr |t_dStd)z7Set the cssutils global Serializer used for all output.z9Serializer must be an instance of cssutils.CSSSerializer.N)rr CSSSerializerrR ValueError)r cssserializerr%r%r& setSerializerts  zCSSStyleSheet.setSerializerz+Set pref in ``cssutils.ser.prefs`` instead.cCstjj||dS)zSet a Preference of CSSSerializer used for output. See :class:`cssutils.serialize.Preferences` for possible preferences to be set. N)rrRprefs __setattr__)rprefvaluer%r%r&setSerializerPref~szCSSStyleSheet.setSerializerPref) NNr NNNFNT)NNr)NFT)#r- __module__ __qualname____doc__rr*r/r3r@rJpropertyrsetterrTrrarrrrrr0r1rsrrr;rMr"rrrrr __classcell__r%r%r#r&rs|$   R   8B   )r__all__xml.domrccssutils.stylesheetsrcssutils.helperr cssutils.utilrrcssrulercssvariablesdeclarationr stylesheets StyleSheetrr%r%r%r&s