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Refactor sizing logic for table measures (#33579)

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After #33577, `get_outer_sizes_from_style()` is only used for column and
cell measures. For these it's expected to ignore sizing keywords like
`min-content`, so rename the function to `get_outer_sizes_for_measurement()`.

Additionally, both callers need the percentage contribution, so include
it in the returned tuple.

Signed-off-by: Oriol Brufau <obrufau@igalia.com>
This commit is contained in:
Oriol Brufau 2024-10-01 10:28:17 -07:00 • committed by GitHub
parent abad89a49c
commit e0aa288dac
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1 changed files with 34 additions and 31 deletions
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65
components/layout_2020/table/layout.rs
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@ -281,10 +281,12 @@ impl<'a> TableLayout<'a> {
block: padding.block_sum() + border.block_sum(),
};
let (size, min_size, max_size, inline_size_is_auto) =
get_outer_sizes_from_style(&cell.style, writing_mode, &padding_border_sums);
let percentage_contribution =
get_size_percentage_contribution_from_style(&cell.style, writing_mode);
let (size, min_size, max_size, inline_size_is_auto, percentage_contribution) =
get_outer_sizes_for_measurement(
&cell.style,
writing_mode,
&padding_border_sums,
);
// <https://drafts.csswg.org/css-tables/#in-fixed-mode>
// > When a table-root is laid out in fixed mode, the content of its table-cells is ignored
@ -2642,10 +2644,8 @@ impl Table {
None => return CellOrTrackMeasure::zero(),
};
let (size, min_size, max_size, _) =
get_outer_sizes_from_style(&column.style, writing_mode, &LogicalVec2::zero());
let percentage_contribution =
get_size_percentage_contribution_from_style(&column.style, writing_mode);
let (size, min_size, max_size, _, percentage_contribution) =
get_outer_sizes_for_measurement(&column.style, writing_mode, &LogicalVec2::zero());
CellOrTrackMeasure {
content_sizes: ContentSizes {
@ -2676,18 +2676,17 @@ impl Table {
// In the block axis, the min-content and max-content sizes are the same
// (except for new layout boxes like grid and flex containers). Note that
// other browsers don't seem to use the min and max sizing properties here.
let size = row
.style
.box_size(writing_mode)
.block
.to_numeric()
.and_then(|size| size.to_length())
.map_or_else(Au::zero, Au::from);
let percentage_contribution =
get_size_percentage_contribution_from_style(&row.style, writing_mode);
let size = row.style.box_size(writing_mode);
let max_size = row.style.max_box_size(writing_mode);
let percentage_contribution = get_size_percentage_contribution(&size, &max_size);
CellOrTrackMeasure {
content_sizes: size.into(),
content_sizes: size
.block
.to_numeric()
.and_then(|size| size.to_length())
.map_or_else(Au::zero, Au::from)
.into(),
percentage: percentage_contribution.block,
}
}
@ -2795,9 +2794,9 @@ impl TableSlotCell {
}
}
fn get_size_percentage_contribution_from_style(
style: &Arc<ComputedValues>,
writing_mode: WritingMode,
fn get_size_percentage_contribution(
size: &LogicalVec2<Size<ComputedLengthPercentage>>,
max_size: &LogicalVec2<Size<ComputedLengthPercentage>>,
) -> LogicalVec2<Percentage> {
// From <https://drafts.csswg.org/css-tables/#percentage-contribution>
// > The percentage contribution of a table cell, column, or column group is defined
@ -2806,11 +2805,8 @@ fn get_size_percentage_contribution_from_style(
// > min(percentage width, percentage max-width).
// > If the computed values are not percentages, then 0% is used for width, and an
// > infinite percentage is used for max-width.
let size = style.box_size(writing_mode);
let max_size = style.max_box_size(writing_mode);
let get_contribution_for_axis =
|size: Size<ComputedLengthPercentage>, max_size: Size<ComputedLengthPercentage>| {
|size: &Size<ComputedLengthPercentage>, max_size: &Size<ComputedLengthPercentage>| {
let size_percentage = size
.to_numeric()
.and_then(|length_percentage| length_percentage.to_percentage())
@ -2823,16 +2819,22 @@ fn get_size_percentage_contribution_from_style(
};
LogicalVec2 {
inline: get_contribution_for_axis(size.inline, max_size.inline),
block: get_contribution_for_axis(size.block, max_size.block),
inline: get_contribution_for_axis(&size.inline, &max_size.inline),
block: get_contribution_for_axis(&size.block, &max_size.block),
}
}
fn get_outer_sizes_from_style(
fn get_outer_sizes_for_measurement(
style: &Arc<ComputedValues>,
writing_mode: WritingMode,
padding_border_sums: &LogicalVec2<Au>,
) -> (LogicalVec2<Au>, LogicalVec2<Au>, LogicalVec2<Au>, bool) {
) -> (
LogicalVec2<Au>,
LogicalVec2<Au>,
LogicalVec2<Au>,
bool,
LogicalVec2<Percentage>,
) {
let box_sizing = style.get_position().box_sizing;
let outer_size = |size: LogicalVec2<Au>| match box_sizing {
BoxSizing::ContentBox => size + *padding_border_sums,
@ -2842,7 +2844,8 @@ fn get_outer_sizes_from_style(
},
};
let get_size_for_axis = |size: &Size<ComputedLengthPercentage>| {
// TODO(#32853): This treats all sizing keywords as `auto`.
// Note that measures treat all size values other than <length>
// as the initial value of the property.
size.to_numeric()
.and_then(|length_percentage| length_percentage.to_length())
.map(Au::from)
@ -2855,8 +2858,8 @@ fn get_outer_sizes_from_style(
outer_size(size.map(|v| get_size_for_axis(v).unwrap_or(Au(0)))),
outer_size(min_size.map(|v| get_size_for_axis(v).unwrap_or(Au(0)))),
outer_size(max_size.map(|v| get_size_for_axis(v).unwrap_or(MAX_AU))),
// TODO(#32853): This treats all sizing keywords as `auto`.
size.inline.is_keyword(),
get_size_percentage_contribution(&size, &max_size),
)
}