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LibWeb: Override width calculation for table wrappers

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Introduce `TableWrapper` type so table wrappers could be
distinguished from block containers and override width
calculation for table wrappers (CSS 2.2 spec, section 17.5.2)
 inside BFCs in the way that their width should be equal to
width of table box they wrap.
This commit is contained in:
Aliaksandr Kalenik 2023-01-14 14:48:20 +01:00 • committed by Andreas Kling
parent 7526f9a8b7
commit 709fe01f52
8 changed files with 74 additions and 1 deletions
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16
Userland/Libraries/LibWeb/Layout/BlockFormattingContext.cpp
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@ -17,6 +17,8 @@
#include <LibWeb/Layout/ListItemBox.h>
#include <LibWeb/Layout/ListItemMarkerBox.h>
#include <LibWeb/Layout/ReplacedBox.h>
#include <LibWeb/Layout/TableBox.h>
#include <LibWeb/Layout/TableWrapper.h>
namespace Web::Layout {
@ -193,6 +195,8 @@ void BlockFormattingContext::compute_width(Box const& box, AvailableSpace const&
};
auto input_width = [&] {
if (is<TableWrapper>(box))
return CSS::Length::make_px(compute_width_for_table_wrapper(box, available_space));
if (should_treat_width_as_auto(box, available_space))
return CSS::Length::make_auto();
return calculate_inner_width(box, available_space.width, computed_values.width());
@ -312,6 +316,18 @@ void BlockFormattingContext::compute_width_for_block_level_replaced_element_in_n
m_state.get_mutable(box).set_content_width(compute_width_for_replaced_element(m_state, box, available_space));
}
CSSPixels BlockFormattingContext::compute_width_for_table_wrapper(Box const& box, AvailableSpace const& available_space)
{
// 17.5.2
// Table wrapper width should be equal to width of table box it contains
LayoutState throwaway_state(&m_state);
auto context = create_independent_formatting_context_if_needed(throwaway_state, box);
VERIFY(context);
context->run(box, LayoutMode::IntrinsicSizing, m_state.get(box).available_inner_space_or_constraints_from(available_space));
auto const* table_box = box.first_child_of_type<TableBox>();
return throwaway_state.get(*table_box).content_width();
}
void BlockFormattingContext::compute_height(Box const& box, AvailableSpace const& available_space)
{
auto const& computed_values = box.computed_values();