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https://github.com/RGBCube/serenity
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LibWeb: Clarify StyleValue API with new naming scheme
This does a few things, that are hard to separate. For a while now, it's been confuzing what `StyleValue::is_foo()` actually means. It sometimes was used to check the type, and sometimes to see if it could return a certain value type. The new naming scheme is: - `is_length()` - is it a LengthStyleValue? - `as_length()` - casts it to LengthStyleValue - `has_length()` - can it return a Length? - `to_length()` - gets the internal value out (eg, Length) This also means, no more `static_cast<LengthStyleValue const&>(*this)` stuff when dealing with StyleValues. :^) Hopefully this will be a bit clearer going forward. There are lots of places using the original methods, so I'll be going through them to hopefully catch any issues.
This commit is contained in:
Sam Atkins
Andreas Kling
parent
1ae0781ce1
commit
4b554ba92a
6 changed files with 263 additions and 60 deletions
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@ -269,11 +269,11 @@ public:
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bool is_flex() const { return type() == Type::Flex; }
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bool is_flex_flow() const { return type() == Type::FlexFlow; }
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bool is_font() const { return type() == Type::Font; }
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bool is_identifier() const { return type() == Type::Identifier || is_auto(); }
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bool is_identifier() const { return type() == Type::Identifier; }
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bool is_image() const { return type() == Type::Image; }
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bool is_inherit() const { return type() == Type::Inherit; }
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bool is_initial() const { return type() == Type::Initial; }
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virtual bool is_length() const { return type() == Type::Length; }
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bool is_length() const { return type() == Type::Length; }
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bool is_list_style() const { return type() == Type::ListStyle; }
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bool is_numeric() const { return type() == Type::Numeric; }
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bool is_overflow() const { return type() == Type::Overflow; }
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@ -285,21 +285,67 @@ public:
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bool is_builtin() const { return is_inherit() || is_initial() || is_unset(); }
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bool is_builtin_or_dynamic() const
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{
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return is_builtin() || is_custom_property() || is_calculated();
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}
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BackgroundRepeatStyleValue const& as_background_repeat() const;
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BackgroundStyleValue const& as_background() const;
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BorderRadiusStyleValue const& as_border_radius() const;
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BorderStyleValue const& as_border() const;
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BoxShadowStyleValue const& as_box_shadow() const;
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CalculatedStyleValue const& as_calculated() const;
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ColorStyleValue const& as_color() const;
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CustomStyleValue const& as_custom_property() const;
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FlexFlowStyleValue const& as_flex_flow() const;
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FlexStyleValue const& as_flex() const;
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FontStyleValue const& as_font() const;
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IdentifierStyleValue const& as_identifier() const;
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ImageStyleValue const& as_image() const;
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InheritStyleValue const& as_inherit() const;
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InitialStyleValue const& as_initial() const;
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LengthStyleValue const& as_length() const;
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ListStyleStyleValue const& as_list_style() const;
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NumericStyleValue const& as_numeric() const;
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OverflowStyleValue const& as_overflow() const;
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StringStyleValue const& as_string() const;
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TextDecorationStyleValue const& as_text_decoration() const;
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TransformationStyleValue const& as_transformation() const;
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UnsetStyleValue const& as_unset() const;
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StyleValueList const& as_value_list() const;
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float as_number() const;
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BackgroundRepeatStyleValue& as_background_repeat() { return const_cast<BackgroundRepeatStyleValue&>(const_cast<StyleValue const&>(*this).as_background_repeat()); }
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BackgroundStyleValue& as_background() { return const_cast<BackgroundStyleValue&>(const_cast<StyleValue const&>(*this).as_background()); }
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BorderRadiusStyleValue& as_border_radius() { return const_cast<BorderRadiusStyleValue&>(const_cast<StyleValue const&>(*this).as_border_radius()); }
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BorderStyleValue& as_border() { return const_cast<BorderStyleValue&>(const_cast<StyleValue const&>(*this).as_border()); }
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BoxShadowStyleValue& as_box_shadow() { return const_cast<BoxShadowStyleValue&>(const_cast<StyleValue const&>(*this).as_box_shadow()); }
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CalculatedStyleValue& as_calculated() { return const_cast<CalculatedStyleValue&>(const_cast<StyleValue const&>(*this).as_calculated()); }
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ColorStyleValue& as_color() { return const_cast<ColorStyleValue&>(const_cast<StyleValue const&>(*this).as_color()); }
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CustomStyleValue& as_custom_property() { return const_cast<CustomStyleValue&>(const_cast<StyleValue const&>(*this).as_custom_property()); }
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FlexFlowStyleValue& as_flex_flow() { return const_cast<FlexFlowStyleValue&>(const_cast<StyleValue const&>(*this).as_flex_flow()); }
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FlexStyleValue& as_flex() { return const_cast<FlexStyleValue&>(const_cast<StyleValue const&>(*this).as_flex()); }
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FontStyleValue& as_font() { return const_cast<FontStyleValue&>(const_cast<StyleValue const&>(*this).as_font()); }
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IdentifierStyleValue& as_identifier() { return const_cast<IdentifierStyleValue&>(const_cast<StyleValue const&>(*this).as_identifier()); }
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ImageStyleValue& as_image() { return const_cast<ImageStyleValue&>(const_cast<StyleValue const&>(*this).as_image()); }
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InheritStyleValue& as_inherit() { return const_cast<InheritStyleValue&>(const_cast<StyleValue const&>(*this).as_inherit()); }
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InitialStyleValue& as_initial() { return const_cast<InitialStyleValue&>(const_cast<StyleValue const&>(*this).as_initial()); }
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LengthStyleValue& as_length() { return const_cast<LengthStyleValue&>(const_cast<StyleValue const&>(*this).as_length()); }
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ListStyleStyleValue& as_list_style() { return const_cast<ListStyleStyleValue&>(const_cast<StyleValue const&>(*this).as_list_style()); }
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NumericStyleValue& as_numeric() { return const_cast<NumericStyleValue&>(const_cast<StyleValue const&>(*this).as_numeric()); }
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OverflowStyleValue& as_overflow() { return const_cast<OverflowStyleValue&>(const_cast<StyleValue const&>(*this).as_overflow()); }
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StringStyleValue& as_string() { return const_cast<StringStyleValue&>(const_cast<StyleValue const&>(*this).as_string()); }
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TextDecorationStyleValue& as_text_decoration() { return const_cast<TextDecorationStyleValue&>(const_cast<StyleValue const&>(*this).as_text_decoration()); }
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TransformationStyleValue& as_transformation() { return const_cast<TransformationStyleValue&>(const_cast<StyleValue const&>(*this).as_transformation()); }
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UnsetStyleValue& as_unset() { return const_cast<UnsetStyleValue&>(const_cast<StyleValue const&>(*this).as_unset()); }
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StyleValueList& as_value_list() { return const_cast<StyleValueList&>(const_cast<StyleValue const&>(*this).as_value_list()); }
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virtual String to_string() const = 0;
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virtual Length to_length() const { return {}; }
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virtual bool has_auto() const { return false; }
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virtual bool has_color() const { return false; }
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virtual bool has_identifier() const { return false; }
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virtual bool has_length() const { return false; }
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virtual bool has_number() const { return false; }
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virtual Color to_color(Layout::NodeWithStyle const&) const { return {}; }
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CSS::ValueID to_identifier() const;
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virtual bool is_auto() const { return false; }
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virtual CSS::ValueID to_identifier() const { return ValueID::Invalid; }
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virtual Length to_length() const { return {}; }
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virtual float to_number() const { return {}; }
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virtual String to_string() const = 0;
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bool operator==(const StyleValue& other) const { return equals(other); }
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bool operator!=(const StyleValue& other) const { return !(*this == other); }
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@ -621,8 +667,9 @@ public:
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virtual ~ColorStyleValue() override { }
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Color color() const { return m_color; }
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String to_string() const override { return m_color.to_string(); }
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Color to_color(Layout::NodeWithStyle const&) const override { return m_color; }
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virtual String to_string() const override { return m_color.to_string(); }
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virtual bool has_color() const override { return true; }
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virtual Color to_color(Layout::NodeWithStyle const&) const override { return m_color; }
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virtual bool equals(const StyleValue& other) const override
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{
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@ -806,8 +853,12 @@ public:
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CSS::ValueID id() const { return m_id; }
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virtual String to_string() const override;
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virtual bool has_auto() const override { return m_id == ValueID::Auto; }
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virtual bool has_identifier() const override { return true; }
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virtual CSS::ValueID to_identifier() const override { return m_id; }
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virtual bool has_color() const override;
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virtual Color to_color(Layout::NodeWithStyle const& node) const override;
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virtual String to_string() const override;
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virtual bool equals(const StyleValue& other) const override
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{
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@ -892,13 +943,13 @@ public:
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}
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virtual ~LengthStyleValue() override { }
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Length const& length() const { return m_length; }
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virtual bool has_auto() const override { return m_length.is_auto(); }
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virtual bool has_length() const override { return true; }
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virtual String to_string() const override { return m_length.to_string(); }
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virtual Length to_length() const override { return m_length; }
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const Length& length() const { return m_length; }
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virtual bool is_auto() const override { return m_length.is_auto(); }
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virtual bool equals(const StyleValue& other) const override
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{
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if (type() != other.type())
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@ -960,10 +1011,15 @@ public:
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return adopt_ref(*new NumericStyleValue(value));
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}
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virtual bool is_length() const override { return m_value == 0; }
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virtual bool has_length() const override { return m_value == 0; }
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virtual Length to_length() const override { return Length(0, Length::Type::Px); }
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virtual bool has_number() const override { return true; }
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virtual float to_number() const override { return m_value; }
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float value() const { return m_value; }
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// FIXME: Store integer values separately
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i64 int_value() const { return roundf(m_value); }
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String to_string() const override { return String::formatted("{}", m_value); }
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virtual bool equals(StyleValue const& other) const override
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@ -1143,12 +1199,4 @@ private:
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NonnullRefPtrVector<StyleValue> m_values;
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};
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inline CSS::ValueID StyleValue::to_identifier() const
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{
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if (type() == Type::Identifier)
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return static_cast<const IdentifierStyleValue&>(*this).id();
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if (is_auto())
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return CSS::ValueID::Auto;
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return CSS::ValueID::Invalid;
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}
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}
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