mirror of
https://github.com/RGBCube/serenity
synced 2025-10-31 15:12:45 +00:00
1682f0b760
SPDX License Identifiers are a more compact / standardized way of representing file license information. See: https://spdx.dev/resources/use/#identifiers This was done with the `ambr` search and replace tool. ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
65 lines
2.1 KiB
C++
65 lines
2.1 KiB
C++
/*
|
|
* Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <LibWeb/Layout/BlockBox.h>
|
|
#include <LibWeb/Layout/Box.h>
|
|
#include <LibWeb/Layout/FlexFormattingContext.h>
|
|
|
|
namespace Web::Layout {
|
|
|
|
FlexFormattingContext::FlexFormattingContext(Box& context_box, FormattingContext* parent)
|
|
: FormattingContext(context_box, parent)
|
|
{
|
|
}
|
|
|
|
FlexFormattingContext::~FlexFormattingContext()
|
|
{
|
|
}
|
|
|
|
void FlexFormattingContext::run(Box& box, LayoutMode layout_mode)
|
|
{
|
|
// FIXME: This is *extremely* naive and only supports flex items laid out on a single line.
|
|
|
|
auto flex_direction = box.computed_values().flex_direction();
|
|
bool horizontal = flex_direction == CSS::FlexDirection::Row || flex_direction == CSS::FlexDirection::RowReverse;
|
|
|
|
auto available_width = box.containing_block()->width();
|
|
|
|
// First, compute the size of each flex item.
|
|
box.for_each_child_of_type<Box>([&](Box& child_box) {
|
|
auto shrink_to_fit_result = calculate_shrink_to_fit_widths(child_box);
|
|
auto shrink_to_fit_width = min(max(shrink_to_fit_result.preferred_minimum_width, available_width), shrink_to_fit_result.preferred_width);
|
|
child_box.set_width(shrink_to_fit_width);
|
|
layout_inside(child_box, layout_mode);
|
|
});
|
|
|
|
// Then, place the items on a vertical or horizontal line.
|
|
float x = 0;
|
|
float y = 0;
|
|
float tallest_child_height = 0;
|
|
float widest_child_width = 0;
|
|
box.for_each_child_of_type<Box>([&](Box& child_box) {
|
|
child_box.set_offset(x, y);
|
|
tallest_child_height = max(tallest_child_height, child_box.height());
|
|
widest_child_width = max(widest_child_width, child_box.width());
|
|
if (horizontal)
|
|
x += child_box.margin_box_width();
|
|
else
|
|
y += child_box.margin_box_height();
|
|
});
|
|
|
|
// Then, compute the height of the entire flex container.
|
|
// FIXME: This is not correct height calculation..
|
|
if (horizontal) {
|
|
box.set_height(tallest_child_height);
|
|
box.set_width(x);
|
|
} else {
|
|
box.set_width(widest_child_width);
|
|
box.set_height(y);
|
|
}
|
|
}
|
|
|
|
}
|