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LibWeb: Clarify attribute selectors when needle is empty

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Daniel Glazman 2022-03-29 17:46:32 +02:00 • committed by Andreas Kling
parent 8f3326616a
commit 049d847230
1 changed files with 19 additions and 6 deletions
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25
Userland/Libraries/LibWeb/CSS/SelectorEngine.cpp
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@ -84,17 +84,30 @@ static inline bool matches_attribute(CSS::Selector::SimpleSelector::Attribute co
case CSS::Selector::SimpleSelector::Attribute::MatchType::ExactValueMatch:
return element.attribute(attribute.name) == attribute.value;
case CSS::Selector::SimpleSelector::Attribute::MatchType::ContainsWord:
return element.attribute(attribute.name).split_view(' ').contains_slow(attribute.value);
return !attribute.value.is_empty()
&& element.attribute(attribute.name).split_view(' ').contains_slow(attribute.value);
case CSS::Selector::SimpleSelector::Attribute::MatchType::ContainsString:
return element.attribute(attribute.name).contains(attribute.value);
return !attribute.value.is_empty()
&& element.attribute(attribute.name).contains(attribute.value);
case CSS::Selector::SimpleSelector::Attribute::MatchType::StartsWithSegment: {
auto segments = element.attribute(attribute.name).split_view('-');
return !segments.is_empty() && segments.first() == attribute.value;
const auto element_attr_value = element.attribute(attribute.name);
if (element_attr_value.is_empty()) {
// If the attribute value on element is empty, the selector is true
// if the match value is also empty and false otherwise.
return attribute.value.is_empty();
}
if (attribute.value.is_empty()) {
return false;
}
auto segments = element_attr_value.split_view('-');
return segments.first() == attribute.value;
}
case CSS::Selector::SimpleSelector::Attribute::MatchType::StartsWithString:
return element.attribute(attribute.name).starts_with(attribute.value);
return !attribute.value.is_empty()
&& element.attribute(attribute.name).starts_with(attribute.value);
case CSS::Selector::SimpleSelector::Attribute::MatchType::EndsWithString:
return element.attribute(attribute.name).ends_with(attribute.value);
return !attribute.value.is_empty()
&& element.attribute(attribute.name).ends_with(attribute.value);
}
return false;