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LibWeb: Support quotes in content values

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This adds initial support for `open-quote`, `close-quote`,
`no-open-quote` and `no-close-quote`. We don't yet track the "nesting
level" so we always use the first pair of quotes from the `quotes`
property.
This commit is contained in:
Sam Atkins 2023-09-12 14:22:46 +01:00 • committed by Andrew Kaster
parent dc7a52957e
commit f0a4baabc7
5 changed files with 75 additions and 4 deletions
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46
Userland/Libraries/LibWeb/CSS/StyleProperties.cpp
View file

@ -649,6 +649,25 @@ Optional<CSS::Clear> StyleProperties::clear() const
CSS::ContentData StyleProperties::content() const
{
auto value = property(CSS::PropertyID::Content);
auto quotes_data = quotes();
auto get_quote_string = [&](bool open, auto depth) {
switch (quotes_data.type) {
case QuotesData::Type::None:
return String {};
case QuotesData::Type::Auto:
// FIXME: "A typographically appropriate used value for quotes is automatically chosen by the UA
// based on the content language of the element and/or its parent."
if (open)
return depth % 2 ? "“"_string : "‘"_string;
return depth % 2 ? "”"_string : "’"_string;
case QuotesData::Type::Specified:
auto& level = quotes_data.strings[depth % quotes_data.strings.size()];
return open ? level[0] : level[1];
}
VERIFY_NOT_REACHED();
};
if (value->is_content()) {
auto& content_style_value = value->as_content();
@ -661,12 +680,33 @@ CSS::ContentData StyleProperties::content() const
for (auto const& item : content_style_value.content().values()) {
if (item->is_string()) {
builder.append(item->as_string().string_value());
} else if (item->is_identifier()) {
switch (item->to_identifier()) {
case ValueID::OpenQuote:
// FIXME: Track nesting level and increment it here.
builder.append(get_quote_string(true, 1));
break;
case ValueID::CloseQuote:
// FIXME: Track nesting level and decrement it here.
builder.append(get_quote_string(false, 1));
break;
case ValueID::NoOpenQuote:
// FIXME: Track nesting level and increment it here.
break;
case ValueID::NoCloseQuote:
// FIXME: Track nesting level and decrement it here.
break;
default:
dbgln("`{}` is not supported in `content` (yet?)", item->to_string());
break;
}
} else {
// TODO: Implement quotes, counters, images, and other things.
// TODO: Implement counters, images, and other things.
dbgln("`{}` is not supported in `content` (yet?)", item->to_string());
}
}
content_data.type = ContentData::Type::String;
content_data.data = builder.to_string().release_value_but_fixme_should_propagate_errors();
content_data.data = MUST(builder.to_string());
if (content_style_value.has_alt_text()) {
StringBuilder alt_text_builder;
@ -677,7 +717,7 @@ CSS::ContentData StyleProperties::content() const
// TODO: Implement counters
}
}
content_data.alt_text = alt_text_builder.to_string().release_value_but_fixme_should_propagate_errors();
content_data.alt_text = MUST(alt_text_builder.to_string());
}
return content_data;