df3cd2fd56
Tables, unlike other block-level elements, should not stretch to fit their containing block by default.
121 lines
4 KiB
C++
121 lines
4 KiB
C++
/*
|
|
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <LibWeb/DOM/Node.h>
|
|
#include <LibWeb/Layout/Box.h>
|
|
#include <LibWeb/Layout/InlineFormattingContext.h>
|
|
#include <LibWeb/Layout/TableBox.h>
|
|
#include <LibWeb/Layout/TableCellBox.h>
|
|
#include <LibWeb/Layout/TableFormattingContext.h>
|
|
#include <LibWeb/Layout/TableRowBox.h>
|
|
#include <LibWeb/Layout/TableRowGroupBox.h>
|
|
#include <LibWeb/Page/BrowsingContext.h>
|
|
|
|
namespace Web::Layout {
|
|
|
|
TableFormattingContext::TableFormattingContext(BlockContainer& block_container, FormattingContext* parent)
|
|
: BlockFormattingContext(block_container, parent)
|
|
{
|
|
}
|
|
|
|
TableFormattingContext::~TableFormattingContext()
|
|
{
|
|
}
|
|
|
|
void TableFormattingContext::run(Box& box, LayoutMode)
|
|
{
|
|
compute_width(box);
|
|
|
|
float total_content_width = 0;
|
|
float total_content_height = 0;
|
|
|
|
box.for_each_child_of_type<TableRowGroupBox>([&](auto& row_group_box) {
|
|
compute_width(row_group_box);
|
|
auto column_count = row_group_box.column_count();
|
|
Vector<float> column_widths;
|
|
column_widths.resize(column_count);
|
|
|
|
row_group_box.template for_each_child_of_type<TableRowBox>([&](auto& row) {
|
|
calculate_column_widths(row, column_widths);
|
|
});
|
|
|
|
float content_width = 0;
|
|
float content_height = 0;
|
|
|
|
row_group_box.template for_each_child_of_type<TableRowBox>([&](auto& row) {
|
|
row.set_offset(0, content_height);
|
|
layout_row(row, column_widths);
|
|
content_width = max(content_width, row.width());
|
|
content_height += row.height();
|
|
});
|
|
|
|
if (row_group_box.computed_values().width().is_auto())
|
|
row_group_box.set_width(content_width);
|
|
row_group_box.set_height(content_height);
|
|
|
|
row_group_box.set_offset(0, total_content_height);
|
|
total_content_height += content_height;
|
|
total_content_width = max(total_content_width, row_group_box.width());
|
|
});
|
|
|
|
if (box.computed_values().width().is_auto())
|
|
box.set_width(total_content_width);
|
|
|
|
// FIXME: This is a total hack, we should respect the 'height' property.
|
|
box.set_height(total_content_height);
|
|
}
|
|
|
|
void TableFormattingContext::calculate_column_widths(Box& row, Vector<float>& column_widths)
|
|
{
|
|
size_t column_index = 0;
|
|
auto* table = row.first_ancestor_of_type<TableBox>();
|
|
bool use_auto_layout = !table || table->computed_values().width().is_undefined_or_auto();
|
|
row.for_each_child_of_type<TableCellBox>([&](auto& cell) {
|
|
compute_width(cell);
|
|
if (use_auto_layout) {
|
|
layout_inside(cell, LayoutMode::OnlyRequiredLineBreaks);
|
|
} else {
|
|
layout_inside(cell, LayoutMode::Default);
|
|
}
|
|
column_widths[column_index] = max(column_widths[column_index], cell.width());
|
|
column_index += cell.colspan();
|
|
});
|
|
}
|
|
|
|
void TableFormattingContext::layout_row(Box& row, Vector<float>& column_widths)
|
|
{
|
|
size_t column_index = 0;
|
|
float tallest_cell_height = 0;
|
|
float content_width = 0;
|
|
auto* table = row.first_ancestor_of_type<TableBox>();
|
|
bool use_auto_layout = !table || table->computed_values().width().is_undefined_or_auto();
|
|
|
|
row.for_each_child_of_type<TableCellBox>([&](auto& cell) {
|
|
cell.set_offset(row.effective_offset().translated(content_width, 0));
|
|
|
|
// Layout the cell contents a second time, now that we know its final width.
|
|
if (use_auto_layout) {
|
|
layout_inside(cell, LayoutMode::OnlyRequiredLineBreaks);
|
|
} else {
|
|
layout_inside(cell, LayoutMode::Default);
|
|
}
|
|
|
|
size_t cell_colspan = cell.colspan();
|
|
for (size_t i = 0; i < cell_colspan; ++i)
|
|
content_width += column_widths[column_index++];
|
|
tallest_cell_height = max(tallest_cell_height, cell.height());
|
|
});
|
|
|
|
if (use_auto_layout) {
|
|
row.set_width(content_width);
|
|
} else {
|
|
row.set_width(table->width());
|
|
}
|
|
|
|
row.set_height(tallest_cell_height);
|
|
}
|
|
|
|
}
|