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layout: Initial implementation of flex-direction: column
and column-reverse
(#33031)
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>
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124 changed files with 541 additions and 605 deletions
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@ -67,7 +67,7 @@ impl<T> FlexRelativeSides<T> {
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/// One of the two bits set by the `flex-direction` property
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/// (The other is "forward" v.s. reverse.)
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#[derive(Clone, Copy, PartialEq)]
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#[derive(Clone, Copy, Debug, PartialEq)]
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pub(super) enum FlexAxis {
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/// The main axis is the inline axis of the container (not necessarily of flex items!),
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/// cross is block.
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