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layout: Initial implementation of flex-direction: column and column-reverse (#33031)

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This change removes restrictions on using the column layout mode of
flexbox and adds an initial implementation of sizing for that flex
direction. There's a lot of missing pieces still, but in some cases this
does render column flexbox.

In particular, there are now two code paths for preferred widths
(intrinsic size) calcuation: one in the main axis (row) and one in
the cross axis (column) corresponding to the flex direciton with
horizontal writing modes.

In addition, `FlexItemBox::inline_content_sizes` is removed in favor of
making `sizing::outer_inline` /
`IndependentFormattingContext::outer_inline_content_sizes` generic
enough to handle using a different value for auto minimum sizes, which
flexbox needs.

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
Co-authored-by: Oriol Brufau <obrufau@igalia.com>
This commit is contained in:
Martin Robinson 2024-08-14 16:25:09 +02:00 • committed by GitHub
parent c059bab6f4
commit 7633bdccd2
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124 changed files with 541 additions and 605 deletions
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2
components/layout_2020/flexbox/geom.rs
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@ -67,7 +67,7 @@ impl<T> FlexRelativeSides<T> {
/// One of the two bits set by the `flex-direction` property
/// (The other is "forward" v.s. reverse.)
#[derive(Clone, Copy, PartialEq)]
#[derive(Clone, Copy, Debug, PartialEq)]
pub(super) enum FlexAxis {
/// The main axis is the inline axis of the container (not necessarily of flex items!),
/// cross is block.