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LibHTML: Add InheritStyleValue and InitialStyleValue.

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These correspond to the 'inherit' and 'initial' CSS values respectively.
This commit is contained in:
Andreas Kling 2019-07-08 07:14:23 +02:00
parent 105a97685e
commit 9526b0e13a
2 changed files with 35 additions and 0 deletions
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31
Libraries/LibHTML/CSS/StyleValue.h
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@ -20,6 +20,9 @@ public:
Type type() const { return m_type; }
bool is_inherit() const { return type() == Type::Inherit; }
bool is_initial() const { return type() == Type::Initial; }
virtual String to_string() const = 0;
protected:
@ -68,3 +71,31 @@ private:
Length m_length;
};
class InitialStyleValue final : public StyleValue {
public:
static NonnullRefPtr<InitialStyleValue> create() { return adopt(*new InitialStyleValue); }
virtual ~InitialStyleValue() override {}
String to_string() const override { return "initial"; }
private:
InitialStyleValue()
: StyleValue(Type::Initial)
{
}
};
class InheritStyleValue final : public StyleValue {
public:
static NonnullRefPtr<InheritStyleValue> create() { return adopt(*new InheritStyleValue); }
virtual ~InheritStyleValue() override {}
String to_string() const override { return "inherit"; }
private:
InheritStyleValue()
: StyleValue(Type::Inherit)
{
}
};

4
Libraries/LibHTML/Parser/CSSParser.cpp
View file

@ -13,6 +13,10 @@ NonnullRefPtr<StyleValue> parse_css_value(const StringView& view)
unsigned as_uint = string.to_uint(ok);
if (ok)
return LengthStyleValue::create(Length(as_uint, Length::Type::Absolute));
if (string == "inherit")
return InheritStyleValue::create();
if (string == "initial")
return InitialStyleValue::create();
if (string == "auto")
return LengthStyleValue::create(Length());
return StringStyleValue::create(string);