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LibWeb: Move available_space_for_line() from IFC to BFC

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This is preparation for allowing blocks with their own internal BFC to
flow around floating boxes in the parent BFC.

Note that IFC still has the available_space_for_line() API, which
returns space available within the IFC's own containing block, while the
BFC available_space_for_line() returns space available within its root.
This commit is contained in:
Andreas Kling 2022-03-17 12:30:30 +01:00
parent fc6b7fcd97
commit ef8a72ff3f
5 changed files with 36 additions and 32 deletions
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25
Userland/Libraries/LibWeb/Layout/BlockFormattingContext.cpp
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@ -692,4 +692,29 @@ void BlockFormattingContext::layout_list_item_marker(ListItemBox const& list_ite
list_item_state.content_height = marker_state.content_height;
}
BlockFormattingContext::AvailableSpaceForLineInfo BlockFormattingContext::available_space_for_line(float y) const
{
AvailableSpaceForLineInfo info;
for (auto const& floating_box : m_left_floats.boxes.in_reverse()) {
auto rect = margin_box_rect_in_ancestor_coordinate_space(floating_box, root(), m_state);
if (rect.contains_vertically(y)) {
info.left = rect.right() + 1;
break;
}
}
info.right = m_state.get(root()).content_width;
for (auto const& floating_box : m_right_floats.boxes.in_reverse()) {
auto rect = margin_box_rect_in_ancestor_coordinate_space(floating_box, root(), m_state);
if (rect.contains_vertically(y)) {
info.right = rect.left();
break;
}
}
return info;
}
}