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LibWeb: Add remaining CSS AttributeMatchTypes

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This adds:
- ContainsString     [att*=val]
- StartsWithSegment  [att|=val]
- StartsWithString   [att^=val]
- EndsWithString     [att$=val]

Renamed AttributeMatchType::Contains to ::ContainsWord for clarity.
This commit is contained in:
Sam Atkins 2021-07-01 15:31:44 +01:00 • committed by Andreas Kling
parent 29d78bba4b
commit 7fefe34797
5 changed files with 38 additions and 10 deletions
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2
Userland/Libraries/LibWeb/CSS/Parser/DeprecatedCSSParser.cpp
View file

@ -478,7 +478,7 @@ public:
attribute_match_type = CSS::Selector::SimpleSelector::AttributeMatchType::ExactValueMatch;
} else if (ch == '~') {
consume_one();
attribute_match_type = CSS::Selector::SimpleSelector::AttributeMatchType::Contains;
attribute_match_type = CSS::Selector::SimpleSelector::AttributeMatchType::ContainsWord;
}
attribute_name = String::copy(buffer);
buffer.clear();

4
Userland/Libraries/LibWeb/CSS/Parser/Parser.cpp
View file

@ -189,12 +189,12 @@ Vector<CSS::Selector::ComplexSelector> Parser::parse_selectors(Vector<StyleCompo
}
if (delim_part.token().delim() == "~") {
simple_selector.attribute_match_type = CSS::Selector::SimpleSelector::AttributeMatchType::Contains;
simple_selector.attribute_match_type = CSS::Selector::SimpleSelector::AttributeMatchType::ContainsWord;
attribute_index++;
}
if (delim_part.token().delim() == "|") {
simple_selector.attribute_match_type = CSS::Selector::SimpleSelector::AttributeMatchType::StartsWith;
simple_selector.attribute_match_type = CSS::Selector::SimpleSelector::AttributeMatchType::StartsWithSegment;
attribute_index++;
}
}

7
Userland/Libraries/LibWeb/CSS/Selector.h
View file

@ -60,8 +60,11 @@ public:
None,
HasAttribute,
ExactValueMatch,
Contains,
StartsWith,
ContainsWord, // [att~=val]
ContainsString, // [att*=val]
StartsWithSegment, // [att|=val]
StartsWithString, // [att^=val]
EndsWithString, // [att$=val]
};
AttributeMatchType attribute_match_type { AttributeMatchType::None };

18
Userland/Libraries/LibWeb/CSS/SelectorEngine.cpp
View file

@ -180,10 +180,26 @@ static bool matches(const CSS::Selector::SimpleSelector& component, const DOM::E
if (element.attribute(component.attribute_name) != component.attribute_value)
return false;
break;
case CSS::Selector::SimpleSelector::AttributeMatchType::Contains:
case CSS::Selector::SimpleSelector::AttributeMatchType::ContainsWord:
if (!element.attribute(component.attribute_name).split(' ').contains_slow(component.attribute_value))
return false;
break;
case CSS::Selector::SimpleSelector::AttributeMatchType::ContainsString:
if (!element.attribute(component.attribute_name).contains(component.attribute_value))
return false;
break;
case CSS::Selector::SimpleSelector::AttributeMatchType::StartsWithSegment:
if (element.attribute(component.attribute_name).split('-').first() != component.attribute_value)
return false;
break;
case CSS::Selector::SimpleSelector::AttributeMatchType::StartsWithString:
if (!element.attribute(component.attribute_name).starts_with(component.attribute_value))
return false;
break;
case CSS::Selector::SimpleSelector::AttributeMatchType::EndsWithString:
if (!element.attribute(component.attribute_name).ends_with(component.attribute_value))
return false;
break;
default:
break;
}

17
Userland/Libraries/LibWeb/Dump.cpp
View file

@ -325,11 +325,20 @@ void dump_selector(StringBuilder& builder, const CSS::Selector& selector)
case CSS::Selector::SimpleSelector::AttributeMatchType::ExactValueMatch:
attribute_match_type_description = "ExactValueMatch";
break;
case CSS::Selector::SimpleSelector::AttributeMatchType::Contains:
attribute_match_type_description = "Contains";
case CSS::Selector::SimpleSelector::AttributeMatchType::ContainsWord:
attribute_match_type_description = "ContainsWord";
break;
case CSS::Selector::SimpleSelector::AttributeMatchType::StartsWith:
attribute_match_type_description = "StartsWith";
case CSS::Selector::SimpleSelector::AttributeMatchType::ContainsString:
attribute_match_type_description = "ContainsString";
break;
case CSS::Selector::SimpleSelector::AttributeMatchType::StartsWithSegment:
attribute_match_type_description = "StartsWithSegment";
break;
case CSS::Selector::SimpleSelector::AttributeMatchType::StartsWithString:
attribute_match_type_description = "StartsWithString";
break;
case CSS::Selector::SimpleSelector::AttributeMatchType::EndsWithString:
attribute_match_type_description = "EndsWithString";
break;
}