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LibWeb: Move unrelated things out of FFC step 1

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Setting some initial width and height on the flex container is totally
unrelated to the "generate anonymous flex items" step.
This commit is contained in:
Andreas Kling 2022-02-27 09:50:09 +01:00
parent 3506a91349
commit 7c5b578df9
2 changed files with 37 additions and 28 deletions
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63
Userland/Libraries/LibWeb/Layout/FlexFormattingContext.cpp
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@ -43,6 +43,38 @@ FlexFormattingContext::~FlexFormattingContext()
{
}
void FlexFormattingContext::setup_initial_width_and_height()
{
// FIXME: This does not correspond to any part of the spec, and will eventually disappear.
auto& containing_block_state = m_state.get(*flex_container().containing_block());
if (!flex_container().has_definite_width()) {
m_flex_container_state.content_width = containing_block_state.content_width;
} else {
auto container_width = containing_block_state.content_width;
auto& maybe_width = flex_container().computed_values().width();
if (maybe_width.has_value()) {
auto width = maybe_width->resolved(flex_container(), CSS::Length::make_px(container_width)).to_px(flex_container());
m_flex_container_state.content_width = width;
} else {
m_flex_container_state.content_width = 0;
}
}
if (!flex_container().has_definite_height()) {
m_flex_container_state.content_height = containing_block_state.content_height;
} else {
auto container_height = containing_block_state.content_height;
auto& maybe_height = flex_container().computed_values().height();
if (maybe_height.has_value()) {
auto height = maybe_height->resolved(flex_container(), CSS::Length::make_px(container_height)).to_px(flex_container());
m_flex_container_state.content_height = height;
} else {
m_flex_container_state.content_height = 0;
}
}
}
void FlexFormattingContext::run(Box const& run_box, LayoutMode)
{
VERIFY(&run_box == &flex_container());
@ -51,6 +83,9 @@ void FlexFormattingContext::run(Box const& run_box, LayoutMode)
// FIXME: Implement reverse and ordering.
// AD-HOC: Set up initial width information
setup_initial_width_and_height();
// 1. Generate anonymous flex items
generate_anonymous_flex_items();
@ -136,40 +171,12 @@ void FlexFormattingContext::populate_specified_margins(FlexItem& item, CSS::Flex
// https://www.w3.org/TR/css-flexbox-1/#flex-items
void FlexFormattingContext::generate_anonymous_flex_items()
{
auto& containing_block_state = m_state.get(*flex_container().containing_block());
// More like, sift through the already generated items.
// After this step no items are to be added or removed from flex_items!
// It holds every item we need to consider and there should be nothing in the following
// calculations that could change that.
// This is particularly important since we take references to the items stored in flex_items
// later, whose addresses won't be stable if we added or removed any items.
if (!flex_container().has_definite_width()) {
m_flex_container_state.content_width = containing_block_state.content_width;
} else {
auto container_width = containing_block_state.content_width;
auto& maybe_width = flex_container().computed_values().width();
if (maybe_width.has_value()) {
auto width = maybe_width->resolved(flex_container(), CSS::Length::make_px(container_width)).to_px(flex_container());
m_flex_container_state.content_width = width;
} else {
m_flex_container_state.content_width = 0;
}
}
if (!flex_container().has_definite_height()) {
m_flex_container_state.content_height = containing_block_state.content_height;
} else {
auto container_height = containing_block_state.content_height;
auto& maybe_height = flex_container().computed_values().height();
if (maybe_height.has_value()) {
auto height = maybe_height->resolved(flex_container(), CSS::Length::make_px(container_height)).to_px(flex_container());
m_flex_container_state.content_height = height;
} else {
m_flex_container_state.content_height = 0;
}
}
flex_container().for_each_child_of_type<Box>([&](Box& child_box) {
// Skip anonymous text runs that are only whitespace.
if (child_box.is_anonymous() && !child_box.first_child_of_type<BlockContainer>()) {