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LibWeb: Make box-shadow known throughout the CSS subsystem

This patch spreads box-shadows around:
- The Values important to box-shadows are stored in a BoxShadowData
  struct
- StyleProperties knows how to construct such a struct from a
  BoxShadowStyleValue and a Node knows how to ask for it
- CalculatedValues contain BoxShadowData and expose them
This commit is contained in:
Tobias Christiansen 2021-07-23 21:22:31 +02:00 committed by Andreas Kling
parent 36e6f559c5
commit f1bdaafcf6
4 changed files with 27 additions and 0 deletions

View file

@ -45,6 +45,13 @@ struct FlexBasisData {
CSS::Length length {};
};
struct BoxShadowData {
CSS::Length offset_x {};
CSS::Length offset_y {};
CSS::Length blur_radius {};
Color color {};
};
class ComputedValues {
public:
CSS::Float float_() const { return m_noninherited.float_; }
@ -64,6 +71,7 @@ public:
Optional<float> flex_shrink_factor() const { return m_noninherited.flex_shrink_factor; }
Optional<float> opacity() const { return m_noninherited.opacity; }
CSS::JustifyContent justify_content() const { return m_noninherited.justify_content; }
Optional<BoxShadowData> box_shadow() const { return m_noninherited.box_shadow; }
const CSS::Length& width() const { return m_noninherited.width; }
const CSS::Length& min_width() const { return m_noninherited.min_width; }
const CSS::Length& max_width() const { return m_noninherited.max_width; }
@ -148,6 +156,7 @@ protected:
CSS::Overflow overflow_x { InitialValues::overflow() };
CSS::Overflow overflow_y { InitialValues::overflow() };
Optional<float> opacity;
Optional<BoxShadowData> box_shadow {};
} m_noninherited;
};
@ -197,6 +206,7 @@ public:
void set_flex_shrink_factor(Optional<float> value) { m_noninherited.flex_shrink_factor = value; }
void set_opacity(Optional<float> value) { m_noninherited.opacity = value; }
void set_justify_content(CSS::JustifyContent value) { m_noninherited.justify_content = value; }
void set_box_shadow(Optional<BoxShadowData> value) { m_noninherited.box_shadow = move(value); }
};
}

View file

@ -764,4 +764,18 @@ Optional<CSS::Repeat> StyleProperties::background_repeat_y() const
return {};
}
}
Optional<CSS::BoxShadowData> StyleProperties::box_shadow() const
{
auto value_or_error = property(CSS::PropertyID::BoxShadow);
if (!value_or_error.has_value())
return {};
auto value = value_or_error.value();
if (!value->is_box_shadow())
return {};
auto box = verify_cast<CSS::BoxShadowStyleValue>(value.ptr());
return { { box->offset_x(), box->offset_y(), box->blur_radius(), box->color() } };
}
}

View file

@ -62,6 +62,7 @@ public:
Optional<CSS::Overflow> overflow_y() const;
Optional<CSS::Repeat> background_repeat_x() const;
Optional<CSS::Repeat> background_repeat_y() const;
Optional<CSS::BoxShadowData> box_shadow() const;
const Gfx::Font& font() const
{