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LibWeb/CSS: Make "CSSStyleValue -> list of font sources" code accessible

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We'll want this in FontFace.
This commit is contained in:
Sam Atkins 2025-04-04 15:30:36 +01:00
parent 3288c71953
commit 0121e7028f
Notes: github-actions[bot] 2025-04-07 09:01:54 +00:00
2 changed files with 34 additions and 26 deletions
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59
Libraries/LibWeb/CSS/ParsedFontFace.cpp
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@ -21,16 +21,40 @@
namespace Web::CSS {
ParsedFontFace ParsedFontFace::from_descriptors(CSSFontFaceDescriptors const& descriptors)
static FlyString extract_font_name(CSSStyleValue const& value)
{
auto extract_font_name = [](CSSStyleValue const& value) {
if (value.is_string())
return value.as_string().string_value();
if (value.is_custom_ident())
return value.as_custom_ident().custom_ident();
return FlyString {};
if (value.is_string())
return value.as_string().string_value();
if (value.is_custom_ident())
return value.as_custom_ident().custom_ident();
return FlyString {};
}
Vector<ParsedFontFace::Source> ParsedFontFace::sources_from_style_value(CSSStyleValue const& style_value)
{
Vector<Source> sources;
auto add_source = [&sources](FontSourceStyleValue const& font_source) {
font_source.source().visit(
[&](FontSourceStyleValue::Local const& local) {
sources.empend(extract_font_name(local.name), OptionalNone {});
},
[&](URL::URL const& url) {
// FIXME: tech()
sources.empend(url, font_source.format());
});
};
if (style_value.is_font_source()) {
add_source(style_value.as_font_source());
} else if (style_value.is_value_list()) {
for (auto const& source : style_value.as_value_list().values())
add_source(source->as_font_source());
}
return sources;
}
ParsedFontFace ParsedFontFace::from_descriptors(CSSFontFaceDescriptors const& descriptors)
{
auto extract_percentage_or_normal = [](CSSStyleValue const& value) -> Optional<Percentage> {
if (value.is_percentage())
return value.as_percentage().percentage();
@ -61,25 +85,8 @@ ParsedFontFace ParsedFontFace::from_descriptors(CSSFontFaceDescriptors const& de
width = value->to_font_width();
Vector<Source> sources;
if (auto value = descriptors.descriptor_or_initial_value(DescriptorID::Src)) {
auto add_source = [&sources, extract_font_name](FontSourceStyleValue const& font_source) {
font_source.source().visit(
[&](FontSourceStyleValue::Local const& local) {
sources.empend(extract_font_name(local.name), OptionalNone {});
},
[&](URL::URL const& url) {
// FIXME: tech()
sources.empend(url, font_source.format());
});
};
if (value->is_font_source()) {
add_source(value->as_font_source());
} else if (value->is_value_list()) {
for (auto const& source : value->as_value_list().values())
add_source(source->as_font_source());
}
}
if (auto value = descriptors.descriptor_or_initial_value(DescriptorID::Src))
sources = sources_from_style_value(*value);
Vector<Gfx::UnicodeRange> unicode_ranges;
if (auto value = descriptors.descriptor_or_initial_value(DescriptorID::UnicodeRange)) {