donner::svg::components::StylesheetComponent Struct Reference

Data for a <style> element. More...

#include "donner/svg/components/StylesheetComponent.h"

Public Member Functions
bool	isCssType () const
	Returns true if the <style> element has either no type attribute, or if it has been manually set to "text/css".
bool	usesAttributeInSelector (std::string_view localName) const
	Returns true if this stylesheet contains an attribute selector that could match an attribute with the given local name, meaning writing that attribute can change which elements the stylesheet matches.
void	parseStylesheet (const RcStringOrRef &str)
	Parse the contents of the <style> element.
void	parseStylesheet (const RcStringOrRef &str, StylesheetSourceMap sourceMap)
	Parse the contents of the <style> element with source provenance.
void	parseStylesheet (const RcStringOrRef &str, StylesheetSourceMap sourceMap, ParseWarningSink &warnings)
	Parse stylesheet contents while collecting CSS-local diagnostics.

Public Attributes
css::Stylesheet	stylesheet
	The parsed stylesheet from the <style> element.
RcString	text
	The raw CSS text the stylesheet was parsed from.
RcString	type
	The type attribute of the <style> element.
StylesheetSourceMap	sourceMap
	Optional mapping from CSS offsets to SVG document source.
bool	isUserAgentStylesheet = false
	True if this is a user agent stylesheet, which is defined by the SVG specification and applied by default by the document. If set, this component is attached to an <svg> element instead. The stylesheet within is applied at lower priority, and should be considered a constant for Donner (it can be overridden, but the base style cannot be changed by the user).
std::vector< RcString >	attributeSelectorNames
	Local names of the attributes referenced by attribute selectors in stylesheet, cached when the stylesheet is parsed.
bool	attributeSelectorMatchesAnyName = false
	True when an attribute selector in stylesheet uses a wildcard local name, so any attribute write can change selector matching.
bool	selectorsDependOnTextContent = false
	True when a selector in stylesheet can change matching after a text edit, cached when the stylesheet is parsed.

Detailed Description

Data for a <style> element.

See https://www.w3.org/TR/SVG2/styling.html#StyleElement

Member Function Documentation

parseStylesheet() [1/3]

void donner::svg::components::StylesheetComponent::parseStylesheet

(

const RcStringOrRef &

str

)

Parse the contents of the <style> element.

Parameters

str	The contents of the <style> element.

parseStylesheet() [2/3]

void donner::svg::components::StylesheetComponent::parseStylesheet	(	const RcStringOrRef &	str,
		StylesheetSourceMap	sourceMap )

Parse the contents of the <style> element with source provenance.

Parameters

str	The contents of the <style> element.
sourceMap	Source map for local CSS offsets in str.

parseStylesheet() [3/3]

void donner::svg::components::StylesheetComponent::parseStylesheet	(	const RcStringOrRef &	str,
		StylesheetSourceMap	sourceMap,
		ParseWarningSink &	warnings )

Parse stylesheet contents while collecting CSS-local diagnostics.

Parameters

str	Stylesheet contents.
sourceMap	Source provenance for the retained stylesheet.
warnings	Bounded sink receiving recoverable CSS diagnostics.

usesAttributeInSelector()

bool donner::svg::components::StylesheetComponent::usesAttributeInSelector ( std::string_view localName ) const

inline

Returns true if this stylesheet contains an attribute selector that could match an attribute with the given local name, meaning writing that attribute can change which elements the stylesheet matches.

Deliberately per-name rather than a single "uses any attribute selector" flag: the user agent stylesheet always contains one (*[xml|space=preserve]), so a single flag would be set for every document.

Parameters

localName

Attribute local name, compared case-insensitively to over-approximate.

Member Data Documentation

attributeSelectorMatchesAnyName

bool donner::svg::components::StylesheetComponent::attributeSelectorMatchesAnyName = false

True when an attribute selector in stylesheet uses a wildcard local name, so any attribute write can change selector matching.

No CSS syntax produces this today.

attributeSelectorNames

std::vector<RcString> donner::svg::components::StylesheetComponent::attributeSelectorNames

Local names of the attributes referenced by attribute selectors in stylesheet, cached when the stylesheet is parsed.

Used by usesAttributeInSelector.

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The documentation for this struct was generated from the following file:

• donner/svg/components/StylesheetComponent.h