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LibWeb: Add serialization code for CSS{Media,Supports}Rule

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The `CSSMediaRule::serialized()` code is to spec. The
`CSSSupportsRule::serialized()` code has no spec right now, but I'm
fairly confident it will be almost identical to media's, so I copied
that for now.
This commit is contained in:
Sam Atkins 2021-10-15 16:42:26 +01:00 • committed by Linus Groh
parent 46bba44f8b
commit 0f88a47e58
6 changed files with 53 additions and 8 deletions
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23
Userland/Libraries/LibWeb/CSS/CSSSupportsRule.cpp
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@ -31,4 +31,27 @@ void CSSSupportsRule::set_condition_text(String text)
m_supports = new_supports.release_nonnull();
}
// https://www.w3.org/TR/cssom-1/#serialize-a-css-rule
String CSSSupportsRule::serialized() const
{
// Note: The spec doesn't cover this yet, so I'm roughly following the spec for the @media rule.
// It should be pretty close!
StringBuilder builder;
builder.append("@supports ");
builder.append(condition_text());
builder.append(" {\n");
for (size_t i = 0; i < css_rules().length(); i++) {
auto rule = css_rules().item(i);
if (i != 0)
builder.append("\n");
builder.append(" ");
builder.append(rule->css_text());
}
builder.append("\n}");
return builder.to_string();
}
}