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Distinguish cached inline_content_sizes() from uncached ones (#34595)

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Several structs and enums had a `inline_content_sizes()` method, but it
wasn't clear which ones would try to cache the result, and which ones
would always compute it.

Therefore, this performs some clarifying renaming:
 - Cached ones stay as `inline_content_sizes()`
 - Uncached ones become `compute_inline_content_sizes()`

Also, to simplify calls to `LayoutBoxBase::inline_content_sizes()`,
`compute_inline_content_sizes()` is moved into a new trait.

Signed-off-by: Oriol Brufau <obrufau@igalia.com>
This commit is contained in:
Oriol Brufau 2024-12-12 16:39:51 +01:00 • committed by GitHub
parent 874e106924
commit f7e2ec3a0f
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GPG key ID: B5690EEEBB952194
9 changed files with 152 additions and 125 deletions
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12
components/layout_2020/flexbox/layout.rs
View file

@ -38,7 +38,9 @@ use crate::geom::{AuOrAuto, LogicalRect, LogicalSides, LogicalVec2, Size};
use crate::positioned::{
relative_adjustement, AbsolutelyPositionedBox, PositioningContext, PositioningContextLength,
};
use crate::sizing::{ContentSizes, InlineContentSizesResult, IntrinsicSizingMode};
use crate::sizing::{
ComputeInlineContentSizes, ContentSizes, InlineContentSizesResult, IntrinsicSizingMode,
};
use crate::style_ext::{
AspectRatio, Clamp, ComputedValuesExt, ContentBoxSizesAndPBMDeprecated, PaddingBorderMargin,
};
@ -411,17 +413,17 @@ struct FlexItemBoxInlineContentSizesInfo {
depends_on_block_constraints: bool,
}
impl FlexContainer {
impl ComputeInlineContentSizes for FlexContainer {
#[cfg_attr(
feature = "tracing",
tracing::instrument(
name = "FlexContainer::inline_content_sizes",
name = "FlexContainer::compute_inline_content_sizes",
skip_all,
fields(servo_profiling = true),
level = "trace",
)
)]
pub fn inline_content_sizes(
fn compute_inline_content_sizes(
&self,
layout_context: &LayoutContext,
constraint_space: &ConstraintSpace,
@ -437,7 +439,9 @@ impl FlexContainer {
FlexAxis::Column => self.cross_content_sizes(layout_context, &constraint_space.into()),
}
}
}
impl FlexContainer {
fn cross_content_sizes(
&self,
layout_context: &LayoutContext,

26
components/layout_2020/flow/inline/mod.rs
View file

@ -126,7 +126,7 @@ use crate::fragment_tree::{
};
use crate::geom::{LogicalRect, LogicalVec2, ToLogical};
use crate::positioned::{AbsolutelyPositionedBox, PositioningContext};
use crate::sizing::{ContentSizes, InlineContentSizesResult};
use crate::sizing::{ComputeInlineContentSizes, ContentSizes, InlineContentSizesResult};
use crate::style_ext::{ComputedValuesExt, PaddingBorderMargin};
use crate::{ConstraintSpace, ContainingBlock};
@ -1579,17 +1579,6 @@ impl InlineFormattingContext {
}
}
// This works on an already-constructed `InlineFormattingContext`,
// Which would have to change if/when
// `BlockContainer::construct` parallelize their construction.
pub(super) fn inline_content_sizes(
&self,
layout_context: &LayoutContext,
constraint_space: &ConstraintSpace,
) -> InlineContentSizesResult {
ContentSizesComputation::compute(self, layout_context, constraint_space)
}
pub(super) fn layout(
&self,
layout_context: &LayoutContext,
@ -2194,6 +2183,19 @@ fn inline_container_needs_strut(
.unwrap_or(false)
}
impl ComputeInlineContentSizes for InlineFormattingContext {
// This works on an already-constructed `InlineFormattingContext`,
// Which would have to change if/when
// `BlockContainer::construct` parallelize their construction.
fn compute_inline_content_sizes(
&self,
layout_context: &LayoutContext,
constraint_space: &ConstraintSpace,
) -> InlineContentSizesResult {
ContentSizesComputation::compute(self, layout_context, constraint_space)
}
}
/// A struct which takes care of computing [`ContentSizes`] for an [`InlineFormattingContext`].
struct ContentSizesComputation<'layout_data> {
layout_context: &'layout_data LayoutContext<'layout_data>,

25
components/layout_2020/flow/mod.rs
View file

@ -40,7 +40,7 @@ use crate::geom::{
use crate::layout_box_base::LayoutBoxBase;
use crate::positioned::{AbsolutelyPositionedBox, PositioningContext, PositioningContextLength};
use crate::replaced::ReplacedContents;
use crate::sizing::{self, ContentSizes, InlineContentSizesResult};
use crate::sizing::{self, ComputeInlineContentSizes, ContentSizes, InlineContentSizesResult};
use crate::style_ext::{
Clamp, ComputedValuesExt, ContentBoxSizesAndPBMDeprecated, PaddingBorderMargin,
};
@ -246,10 +246,11 @@ impl OutsideMarker {
&self.marker_style,
None, /* TODO: support preferred aspect ratios on non-replaced boxes */
);
let content_sizes = self.base.inline_content_sizes(&constraint_space, || {
self.block_container
.inline_content_sizes(layout_context, &constraint_space)
});
let content_sizes = self.base.inline_content_sizes(
layout_context,
&constraint_space,
&self.block_container,
);
let containing_block_for_children = ContainingBlock {
size: ContainingBlockSize {
inline: content_sizes.sizes.max_content,
@ -379,7 +380,7 @@ impl BlockFormattingContext {
/// But floats can flow horizontally depending on 'clear', so we may need to sum their sizes.
/// CSS 2 does not define the exact algorithm, this logic is based on the behavior observed
/// on Gecko and Blink.
fn calculate_inline_content_size_for_block_level_boxes(
fn compute_inline_content_sizes_for_block_level_boxes(
boxes: &[ArcRefCell<BlockLevelBox>],
layout_context: &LayoutContext,
containing_block: &IndefiniteContainingBlock,
@ -416,9 +417,7 @@ fn calculate_inline_content_size_for_block_level_boxes(
false, /* auto_block_size_stretches_to_containing_block */
|_| None, /* TODO: support preferred aspect ratios on non-replaced boxes */
|constraint_space| {
base.inline_content_sizes(constraint_space, || {
contents.inline_content_sizes(layout_context, constraint_space)
})
base.inline_content_sizes(layout_context, constraint_space, contents)
},
);
// A block in the same BFC can overlap floats, it's not moved next to them,
@ -552,20 +551,22 @@ impl BlockContainer {
),
}
}
}
pub(super) fn inline_content_sizes(
impl ComputeInlineContentSizes for BlockContainer {
fn compute_inline_content_sizes(
&self,
layout_context: &LayoutContext,
constraint_space: &ConstraintSpace,
) -> InlineContentSizesResult {
match &self {
Self::BlockLevelBoxes(boxes) => calculate_inline_content_size_for_block_level_boxes(
Self::BlockLevelBoxes(boxes) => compute_inline_content_sizes_for_block_level_boxes(
boxes,
layout_context,
&constraint_space.into(),
),
Self::InlineFormattingContext(context) => {
context.inline_content_sizes(layout_context, constraint_space)
context.compute_inline_content_sizes(layout_context, constraint_space)
},
}
}

37
components/layout_2020/formatting_contexts.rs
View file

@ -19,7 +19,7 @@ use crate::geom::LogicalSides;
use crate::layout_box_base::LayoutBoxBase;
use crate::positioned::PositioningContext;
use crate::replaced::ReplacedContents;
use crate::sizing::{self, InlineContentSizesResult};
use crate::sizing::{self, ComputeInlineContentSizes, InlineContentSizesResult};
use crate::style_ext::{AspectRatio, DisplayInside};
use crate::table::Table;
use crate::taffy::TaffyContainer;
@ -187,15 +187,14 @@ impl IndependentFormattingContext {
layout_context: &LayoutContext,
constraint_space: &ConstraintSpace,
) -> InlineContentSizesResult {
self.base
.inline_content_sizes(constraint_space, || match &self.contents {
IndependentFormattingContextContents::NonReplaced(contents) => {
contents.inline_content_sizes(layout_context, constraint_space)
},
IndependentFormattingContextContents::Replaced(contents) => {
contents.inline_content_sizes(layout_context, constraint_space)
},
})
match &self.contents {
IndependentFormattingContextContents::NonReplaced(contents) => self
.base
.inline_content_sizes(layout_context, constraint_space, contents),
IndependentFormattingContextContents::Replaced(contents) => self
.base
.inline_content_sizes(layout_context, constraint_space, contents),
}
}
pub(crate) fn outer_inline_content_sizes(
@ -270,8 +269,10 @@ impl IndependentNonReplacedContents {
// TODO: support preferred aspect ratios on non-replaced boxes.
None
}
}
pub(crate) fn inline_content_sizes(
impl ComputeInlineContentSizes for IndependentNonReplacedContents {
fn compute_inline_content_sizes(
&self,
layout_context: &LayoutContext,
constraint_space: &ConstraintSpace,
@ -279,10 +280,16 @@ impl IndependentNonReplacedContents {
match self {
Self::Flow(inner) => inner
.contents
.inline_content_sizes(layout_context, constraint_space),
Self::Flex(inner) => inner.inline_content_sizes(layout_context, constraint_space),
Self::Grid(inner) => inner.inline_content_sizes(layout_context, constraint_space),
Self::Table(table) => table.inline_content_sizes(layout_context, constraint_space),
.compute_inline_content_sizes(layout_context, constraint_space),
Self::Flex(inner) => {
inner.compute_inline_content_sizes(layout_context, constraint_space)
},
Self::Grid(inner) => {
inner.compute_inline_content_sizes(layout_context, constraint_space)
},
Self::Table(inner) => {
inner.compute_inline_content_sizes(layout_context, constraint_space)
},
}
}
}

8
components/layout_2020/layout_box_base.rs
View file

@ -7,9 +7,10 @@ use serde::Serialize;
use servo_arc::Arc;
use style::properties::ComputedValues;
use crate::context::LayoutContext;
use crate::fragment_tree::BaseFragmentInfo;
use crate::geom::SizeConstraint;
use crate::sizing::InlineContentSizesResult;
use crate::sizing::{ComputeInlineContentSizes, InlineContentSizesResult};
use crate::ConstraintSpace;
/// A box tree node that handles containing information about style and the original DOM
@ -41,8 +42,9 @@ impl LayoutBoxBase {
/// the result from a cache when possible.
pub(crate) fn inline_content_sizes(
&self,
layout_context: &LayoutContext,
constraint_space: &ConstraintSpace,
inline_content_sizes_fn: impl FnOnce() -> InlineContentSizesResult,
layout_box: &impl ComputeInlineContentSizes,
) -> InlineContentSizesResult {
let mut cache = self.cached_inline_content_size.borrow_mut();
if let Some((previous_cb_block_size, result)) = *cache {
@ -54,7 +56,7 @@ impl LayoutBoxBase {
// TODO: Should we keep multiple caches for various block sizes?
}
let result = inline_content_sizes_fn();
let result = layout_box.compute_inline_content_sizes(layout_context, constraint_space);
*cache = Some((constraint_space.block_size, result));
result
}

50
components/layout_2020/replaced.rs
View file

@ -29,7 +29,7 @@ use crate::context::LayoutContext;
use crate::dom::NodeExt;
use crate::fragment_tree::{BaseFragmentInfo, Fragment, IFrameFragment, ImageFragment};
use crate::geom::{LogicalVec2, PhysicalPoint, PhysicalRect, PhysicalSize, Size};
use crate::sizing::{ContentSizes, InlineContentSizesResult};
use crate::sizing::{ComputeInlineContentSizes, ContentSizes, InlineContentSizesResult};
use crate::style_ext::{AspectRatio, Clamp, ComputedValuesExt, ContentBoxSizesAndPBM};
use crate::{ConstraintSpace, ContainingBlock, SizeConstraint};
@ -278,29 +278,6 @@ impl ReplacedContents {
}
}
pub fn inline_content_sizes(
&self,
_: &LayoutContext,
constraint_space: &ConstraintSpace,
) -> InlineContentSizesResult {
let get_inline_fallback_size = || {
let writing_mode = constraint_space.writing_mode;
self.flow_relative_natural_size(writing_mode)
.inline
.unwrap_or_else(|| Self::flow_relative_default_object_size(writing_mode).inline)
};
let inline_content_size = self.content_size(
Direction::Inline,
constraint_space.preferred_aspect_ratio,
&|| constraint_space.block_size,
&get_inline_fallback_size,
);
InlineContentSizesResult {
sizes: inline_content_size.into(),
depends_on_block_constraints: constraint_space.preferred_aspect_ratio.is_some(),
}
}
pub fn make_fragments(
&self,
style: &ServoArc<ComputedValues>,
@ -606,6 +583,31 @@ impl ReplacedContents {
}
}
impl ComputeInlineContentSizes for ReplacedContents {
fn compute_inline_content_sizes(
&self,
_: &LayoutContext,
constraint_space: &ConstraintSpace,
) -> InlineContentSizesResult {
let get_inline_fallback_size = || {
let writing_mode = constraint_space.writing_mode;
self.flow_relative_natural_size(writing_mode)
.inline
.unwrap_or_else(|| Self::flow_relative_default_object_size(writing_mode).inline)
};
let inline_content_size = self.content_size(
Direction::Inline,
constraint_space.preferred_aspect_ratio,
&|| constraint_space.block_size,
&get_inline_fallback_size,
);
InlineContentSizesResult {
sizes: inline_content_size.into(),
depends_on_block_constraints: constraint_space.preferred_aspect_ratio.is_some(),
}
}
}
fn try_to_parse_image_data_url(string: &str) -> Option<Url> {
if !string.starts_with("data:") {
return None;

9
components/layout_2020/sizing.rs
View file

@ -12,6 +12,7 @@ use serde::Serialize;
use style::properties::ComputedValues;
use style::Zero;
use crate::context::LayoutContext;
use crate::geom::Size;
use crate::style_ext::{AspectRatio, Clamp, ComputedValuesExt, ContentBoxSizesAndPBM};
use crate::{ConstraintSpace, IndefiniteContainingBlock, LogicalVec2, SizeConstraint};
@ -216,3 +217,11 @@ pub(crate) struct InlineContentSizesResult {
pub sizes: ContentSizes,
pub depends_on_block_constraints: bool,
}
pub(crate) trait ComputeInlineContentSizes {
fn compute_inline_content_sizes(
&self,
layout_context: &LayoutContext,
constraint_space: &ConstraintSpace,
) -> InlineContentSizesResult;
}

102
components/layout_2020/table/layout.rs
View file

@ -36,7 +36,7 @@ use crate::geom::{
Size, ToLogical, ToLogicalWithContainingBlock,
};
use crate::positioned::{relative_adjustement, PositioningContext, PositioningContextLength};
use crate::sizing::{ContentSizes, InlineContentSizesResult};
use crate::sizing::{ComputeInlineContentSizes, ContentSizes, InlineContentSizesResult};
use crate::style_ext::{Clamp, ComputedValuesExt, PaddingBorderMargin};
use crate::table::TableSlotCoordinates;
use crate::{
@ -2621,52 +2621,6 @@ impl Table {
}
}
#[cfg_attr(
feature = "tracing",
tracing::instrument(
name = "Table::inline_content_sizes",
skip_all,
fields(servo_profiling = true),
level = "trace",
)
)]
pub(crate) fn inline_content_sizes(
&self,
layout_context: &LayoutContext,
constraint_space: &ConstraintSpace,
) -> InlineContentSizesResult {
let writing_mode = constraint_space.writing_mode;
let mut layout = TableLayout::new(self);
let mut table_content_sizes = layout.compute_grid_min_max(layout_context, writing_mode);
let mut caption_minimum_inline_size =
layout.compute_caption_minimum_inline_size(layout_context);
if caption_minimum_inline_size > table_content_sizes.min_content ||
caption_minimum_inline_size > table_content_sizes.max_content
{
// Padding and border should apply to the table grid, but they will be taken into
// account when computing the inline content sizes of the table wrapper (our parent), so
// this code removes their contribution from the inline content size of the caption.
let padding = self
.style
.padding(writing_mode)
.percentages_relative_to(Au::zero());
let border = self.style.border_width(writing_mode);
caption_minimum_inline_size -= padding.inline_sum() + border.inline_sum();
table_content_sizes
.min_content
.max_assign(caption_minimum_inline_size);
table_content_sizes
.max_content
.max_assign(caption_minimum_inline_size);
}
InlineContentSizesResult {
sizes: table_content_sizes,
depends_on_block_constraints: false,
}
}
fn get_column_measure_for_column_at_index(
&self,
writing_mode: WritingMode,
@ -2740,6 +2694,54 @@ impl Table {
}
}
impl ComputeInlineContentSizes for Table {
#[cfg_attr(
feature = "tracing",
tracing::instrument(
name = "Table::compute_inline_content_sizes",
skip_all,
fields(servo_profiling = true),
level = "trace",
)
)]
fn compute_inline_content_sizes(
&self,
layout_context: &LayoutContext,
constraint_space: &ConstraintSpace,
) -> InlineContentSizesResult {
let writing_mode = constraint_space.writing_mode;
let mut layout = TableLayout::new(self);
let mut table_content_sizes = layout.compute_grid_min_max(layout_context, writing_mode);
let mut caption_minimum_inline_size =
layout.compute_caption_minimum_inline_size(layout_context);
if caption_minimum_inline_size > table_content_sizes.min_content ||
caption_minimum_inline_size > table_content_sizes.max_content
{
// Padding and border should apply to the table grid, but they will be taken into
// account when computing the inline content sizes of the table wrapper (our parent), so
// this code removes their contribution from the inline content size of the caption.
let padding = self
.style
.padding(writing_mode)
.percentages_relative_to(Au::zero());
let border = self.style.border_width(writing_mode);
caption_minimum_inline_size -= padding.inline_sum() + border.inline_sum();
table_content_sizes
.min_content
.max_assign(caption_minimum_inline_size);
table_content_sizes
.max_content
.max_assign(caption_minimum_inline_size);
}
InlineContentSizesResult {
sizes: table_content_sizes,
depends_on_block_constraints: false,
}
}
}
impl TableSlotCell {
fn effective_vertical_align(&self) -> VerticalAlignKeyword {
match self.base.style.clone_vertical_align() {
@ -2764,11 +2766,7 @@ impl TableSlotCell {
None, /* TODO: support preferred aspect ratios on non-replaced boxes */
);
self.base
.inline_content_sizes(&constraint_space, || {
self.contents
.contents
.inline_content_sizes(layout_context, &constraint_space)
})
.inline_content_sizes(layout_context, &constraint_space, &self.contents.contents)
.sizes
}

8
components/layout_2020/taffy/layout.rs
View file

@ -25,7 +25,7 @@ use crate::geom::{
SizeConstraint,
};
use crate::positioned::{AbsolutelyPositionedBox, PositioningContext, PositioningContextLength};
use crate::sizing::{ContentSizes, InlineContentSizesResult};
use crate::sizing::{ComputeInlineContentSizes, ContentSizes, InlineContentSizesResult};
use crate::style_ext::ComputedValuesExt;
use crate::{ConstraintSpace, ContainingBlock, ContainingBlockSize};
@ -307,8 +307,8 @@ impl taffy::LayoutGridContainer for TaffyContainerContext<'_> {
}
}
impl TaffyContainer {
pub fn inline_content_sizes(
impl ComputeInlineContentSizes for TaffyContainer {
fn compute_inline_content_sizes(
&self,
layout_context: &LayoutContext,
_constraint_space: &ConstraintSpace,
@ -382,7 +382,9 @@ impl TaffyContainer {
depends_on_block_constraints: true,
}
}
}
impl TaffyContainer {
/// <https://drafts.csswg.org/css-grid/#layout-algorithm>
pub(crate) fn layout(
&self,