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LibHTML: Implement some attribute selector support

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This patch adds a[foo] and a[foo=bar] attribute selectors.

Note that an attribute selector is an optional part of a selector
component, and not a component on its own.
This commit is contained in:
Andreas Kling 2019-11-21 20:07:43 +01:00
parent 54a6ae9201
commit 8946e50986
6 changed files with 115 additions and 8 deletions
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20
Libraries/LibHTML/Dump.cpp
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@ -180,12 +180,28 @@ void dump_rule(const StyleRule& rule)
relation_description = "{GeneralSibling}";
break;
}
dbgprintf(" %s:%s %s\n", type_description, component.value.characters(), relation_description);
const char* attribute_match_type_description = "";
switch (component.attribute_match_type) {
case Selector::Component::AttributeMatchType::None:
break;
case Selector::Component::AttributeMatchType::HasAttribute:
attribute_match_type_description = "HasAttribute";
break;
case Selector::Component::AttributeMatchType::ExactValueMatch:
attribute_match_type_description = "ExactValueMatch";
break;
}
dbgprintf(" %s:%s %s", type_description, component.value.characters(), relation_description);
if (component.attribute_match_type != Selector::Component::AttributeMatchType::None) {
dbgprintf(" [%s, name='%s', value='%s']", attribute_match_type_description, component.attribute_name.characters(), component.attribute_value.characters());
}
dbgprintf("\n");
}
}
dbgprintf(" Declarations:\n");
for (auto& property : rule.declaration().properties()) {
dbgprintf(" CSS::PropertyID(%u): '%s'\n", (unsigned)property.property_id, property.value->to_string().characters());
dbgprintf(" %s: '%s'\n", CSS::string_from_property_id(property.property_id), property.value->to_string().characters());
}
}