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LibWeb: Absolutize internal lengths in all StyleValues

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StyleValue now has a virtual visit_lengths() that allows us to update
all CSS lengths during the absolutization phase.
This commit is contained in:
Andreas Kling 2021-09-23 20:15:26 +02:00
parent 785ace4fc2
commit 3dc6f0bc47
Notes: sideshowbarker 2024-07-18 03:28:44 +09:00
2 changed files with 28 additions and 8 deletions
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13
Userland/Libraries/LibWeb/CSS/StyleResolver.cpp
View file

@ -818,13 +818,12 @@ void StyleResolver::absolutize_values(StyleProperties& style, DOM::Element const
float root_font_size = 10;
for (auto& it : style.properties()) {
if (!it.value->is_length())
continue;
auto length = it.value->to_length();
if (length.is_relative()) {
auto px = length.relative_length_to_px(viewport_rect, font_metrics, root_font_size);
it.value = LengthStyleValue::create(CSS::Length::make_px(px));
}
it.value->visit_lengths([&](Length& length) {
if (length.is_absolute() || length.is_relative()) {
auto px = length.to_px(viewport_rect, font_metrics, root_font_size);
length = Length::make_px(px);
}
});
}
}

23
Userland/Libraries/LibWeb/CSS/StyleValue.h
View file

@ -8,6 +8,7 @@
#pragma once
#include <AK/Function.h>
#include <AK/NonnullOwnPtr.h>
#include <AK/NonnullOwnPtrVector.h>
#include <AK/NonnullRefPtrVector.h>
@ -357,6 +358,8 @@ public:
return to_string() == other.to_string();
}
virtual void visit_lengths(Function<void(CSS::Length&)>) { }
protected:
explicit StyleValue(Type);
@ -514,12 +517,18 @@ private:
m_is_elliptical = (m_horizontal_radius != m_vertical_radius);
}
virtual void visit_lengths(Function<void(CSS::Length&)> visitor) override
{
visitor(m_horizontal_radius);
visitor(m_vertical_radius);
}
bool m_is_elliptical;
Length m_horizontal_radius;
Length m_vertical_radius;
};
class BoxShadowStyleValue : public StyleValue {
class BoxShadowStyleValue final : public StyleValue {
public:
static NonnullRefPtr<BoxShadowStyleValue> create(Length const& offset_x, Length const& offset_y, Length const& blur_radius, Color const& color)
{
@ -545,6 +554,13 @@ private:
{
}
virtual void visit_lengths(Function<void(CSS::Length&)> visitor) override
{
visitor(m_offset_x);
visitor(m_offset_y);
visitor(m_blur_radius);
}
Length m_offset_x;
Length m_offset_y;
Length m_blur_radius;
@ -964,6 +980,11 @@ private:
{
}
virtual void visit_lengths(Function<void(CSS::Length&)> visitor) override
{
visitor(m_length);
}
Length m_length;
};