RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-25 03:07:43 +00:00
Code Issues Activity Actions

LibWeb: Check column or row size attributes for constrainedness

Browse source 
Better aligns our implementation with the specification, which requires
that columns and groups of columns are checked too.
This commit is contained in:
Andi Gallo 2023-07-15 01:12:10 +00:00 • committed by Andreas Kling
parent 19a26533a9
commit 28509e3edd
4 changed files with 87 additions and 6 deletions
Download patch file Download diff file Expand all files Collapse all files

50
Userland/Libraries/LibWeb/Layout/TableFormattingContext.cpp
View file

@ -54,6 +54,16 @@ static inline bool is_table_row(Box const& box)
return box.display().is_table_row();
}
static inline bool is_table_column_group(Box const& box)
{
return box.display().is_table_column_group();
}
static inline bool is_table_column(Box const& box)
{
return box.display().is_table_column();
}
template<typename Matcher, typename Callback>
static void for_each_child_box_matching(Box const& parent, Matcher matcher, Callback callback)
{
@ -173,16 +183,31 @@ void TableFormattingContext::calculate_row_column_grid(Box const& box)
}
}
void TableFormattingContext::compute_cell_measures(AvailableSpace const& available_space)
void TableFormattingContext::compute_constrainedness()
{
// Implements https://www.w3.org/TR/css-tables-3/#computing-cell-measures.
auto const& containing_block = m_state.get(*table_wrapper().containing_block());
auto table_width_is_auto = table_box().computed_values().width().is_auto();
// Definition of constrainedness: https://www.w3.org/TR/css-tables-3/#constrainedness
size_t column_index = 0;
for_each_child_box_matching(table_box(), is_table_column_group, [&](auto& column_group_box) {
for_each_child_box_matching(column_group_box, is_table_column, [&](auto& column_box) {
auto const& computed_values = column_box.computed_values();
if (!computed_values.width().is_auto() && !computed_values.width().is_percentage()) {
m_columns[column_index].is_constrained = true;
}
auto const& col_node = static_cast<HTML::HTMLTableColElement const&>(*column_box.dom_node());
unsigned span = col_node.attribute(HTML::AttributeNames::span).to_uint().value_or(1);
column_index += span;
});
});
for (auto& row : m_rows) {
auto const& computed_values = row.box->computed_values();
if (!computed_values.height().is_auto() && !computed_values.height().is_percentage()) {
row.is_constrained = true;
}
}
for (auto& cell : m_cells) {
auto const& computed_values = cell.box->computed_values();
// Definition of constrainedness: https://www.w3.org/TR/css-tables-3/#constrainedness
// FIXME: Consider table-column-group and table-column too.
if (!computed_values.width().is_auto() && !computed_values.width().is_percentage()) {
m_columns[cell.column_index].is_constrained = true;
}
@ -190,6 +215,19 @@ void TableFormattingContext::compute_cell_measures(AvailableSpace const& availab
if (!computed_values.height().is_auto() && !computed_values.height().is_percentage()) {
m_rows[cell.row_index].is_constrained = true;
}
}
}
void TableFormattingContext::compute_cell_measures(AvailableSpace const& available_space)
{
// Implements https://www.w3.org/TR/css-tables-3/#computing-cell-measures.
auto const& containing_block = m_state.get(*table_wrapper().containing_block());
auto table_width_is_auto = table_box().computed_values().width().is_auto();
compute_constrainedness();
for (auto& cell : m_cells) {
auto const& computed_values = cell.box->computed_values();
if (computed_values.width().is_percentage()) {
m_columns[cell.column_index].has_percentage_width = true;