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LibWeb: Remove absolute positioning logic from LayoutReplaced

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Absolutely positioned elements are placed by their containing block.
Instead of trying to compute its own position, LayoutReplaced will
now simply add itself as an absolutely positioned descendant of its
containing block.
This commit is contained in:
Andreas Kling 2020-06-12 15:23:59 +02:00
parent 137f6d44ec
commit f3ea8d49a9
Notes: sideshowbarker 2024-07-19 05:42:40 +09:00
1 changed files with 6 additions and 8 deletions
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14
Libraries/LibWeb/Layout/LayoutReplaced.cpp
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@ -123,17 +123,11 @@ float LayoutReplaced::calculate_height() const
Gfx::FloatPoint LayoutReplaced::calculate_position()
{
ASSERT(!is_absolutely_positioned());
auto& style = this->style();
auto zero_value = Length(0, Length::Type::Px);
auto& containing_block = *this->containing_block();
if (style.position() == CSS::Position::Absolute) {
box_model().offset().top = style.length_or_fallback(CSS::PropertyID::Top, zero_value, containing_block.height());
box_model().offset().right = style.length_or_fallback(CSS::PropertyID::Right, zero_value, containing_block.width());
box_model().offset().bottom = style.length_or_fallback(CSS::PropertyID::Bottom, zero_value, containing_block.height());
box_model().offset().left = style.length_or_fallback(CSS::PropertyID::Left, zero_value, containing_block.width());
}
box_model().margin().top = style.length_or_fallback(CSS::PropertyID::MarginTop, zero_value, containing_block.width());
box_model().margin().bottom = style.length_or_fallback(CSS::PropertyID::MarginBottom, zero_value, containing_block.width());
box_model().border().top = style.length_or_fallback(CSS::PropertyID::BorderTopWidth, zero_value);
@ -158,7 +152,11 @@ void LayoutReplaced::layout(LayoutMode layout_mode)
LayoutBox::layout(layout_mode);
set_offset(calculate_position());
if (is_absolutely_positioned()) {
const_cast<LayoutBlock*>(containing_block())->add_absolutely_positioned_descendant(*this);
} else {
set_offset(calculate_position());
}
}
void LayoutReplaced::split_into_lines(LayoutBlock& container, LayoutMode layout_mode)