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LibWeb: Check if types have a present and nonzero percentage value

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Co-authored-by: Chase Knowlden <haroldknowlden@gmail.com>
Co-authored-by: "tanner.drake" <tanner.drake@protonmail.com>
This commit is contained in:
Gingeh 2024-12-30 07:42:14 +11:00 • committed by Andreas Kling
commit 0a6793c89b
Notes: github-actions[bot] 2024-12-30 10:10:08 +00:00
3 changed files with 35 additions and 1 deletions
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2
Libraries/LibWeb/CSS/CSSNumericType.cpp
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@ -154,7 +154,7 @@ Optional<CSSNumericType> CSSNumericType::added_to(CSSNumericType const& other) c
} }
// If type1 and/or type2 contain "percent" with a non-zero value, // If type1 and/or type2 contain "percent" with a non-zero value,
// and type1 and/or type2 contain a key other than "percent" with a non-zero value // and type1 and/or type2 contain a key other than "percent" with a non-zero value
if ((type1.exponent(BaseType::Percent) != 0 || type2.exponent(BaseType::Percent) != 0) if (((type1.exponent(BaseType::Percent).has_value() && type1.exponent(BaseType::Percent) != 0) || (type2.exponent(BaseType::Percent).has_value() && type2.exponent(BaseType::Percent) != 0))
&& (type1.contains_a_key_other_than_percent_with_a_non_zero_value() || type2.contains_a_key_other_than_percent_with_a_non_zero_value())) { && (type1.contains_a_key_other_than_percent_with_a_non_zero_value() || type2.contains_a_key_other_than_percent_with_a_non_zero_value())) {
// For each base type other than "percent" hint: // For each base type other than "percent" hint:
for (auto hint_int = 0; hint_int < to_underlying(BaseType::__Count); ++hint_int) { for (auto hint_int = 0; hint_int < to_underlying(BaseType::__Count); ++hint_int) {

1
Tests/LibWeb/Ref/expected/wpt-import/css/css-values/reference/all-green.html Normal file
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@ -0,0 +1 @@
<html style="background: green"></html>

33
Tests/LibWeb/Ref/input/wpt-import/css/css-values/max-unitless-zero-invalid.html Normal file
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@ -0,0 +1,33 @@
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>CSS Values and Units Test: min() with unitless 0</title>
<meta name="assert" content="Unitless 0 isn't supported in math functions.">
<link rel="author" title="Fuqiao Xue" href="mailto:xfq@w3.org">
<link rel="help" href="https://drafts.csswg.org/css-values/#calc-type-checking">
<link rel="match" href="../../../../expected/wpt-import/css/css-values/reference/all-green.html">
<style>
html, body { margin: 0px; padding: 0px; }
html { background: red; overflow: hidden; }
#outer { position: absolute; top: 0px; left: 0px; background: green; width: 100%; }
#outer {
/* Assert that min() is supported */
height: min(100%);
/* The min() expression (thus the declaration) should be invalid */
height: min(0, 100%);
}
</style>
</head>
<body>
<div id="outer"></div>
</body>
</html>