mirror of
https://github.com/servo/servo.git
synced 2025-08-06 22:15:33 +01:00
Introduce PositioningContext
This commit is contained in:
Simon Sapin
parent
06e3d13795
commit
b43a3de51d
5 changed files with 90 additions and 69 deletions
|
|
@ -9,7 +9,7 @@ use crate::formatting_contexts::IndependentFormattingContext;
|
|||
use crate::fragments::CollapsedBlockMargins;
|
||||
use crate::fragments::{AnonymousFragment, BoxFragment, Fragment, TextFragment};
|
||||
use crate::geom::flow_relative::{Rect, Sides, Vec2};
|
||||
use crate::positioned::{AbsolutelyPositionedBox, AbsolutelyPositionedFragment};
|
||||
use crate::positioned::{AbsolutelyPositionedBox, PositioningContext};
|
||||
use crate::sizing::ContentSizes;
|
||||
use crate::style_ext::{ComputedValuesExt, Display, DisplayGeneratingBox, DisplayOutside};
|
||||
use crate::{relative_adjustement, ContainingBlock};
|
||||
|
|
@ -68,9 +68,9 @@ struct PartialInlineBoxFragment<'box_tree> {
|
|||
parent_nesting_level: InlineNestingLevelState<'box_tree>,
|
||||
}
|
||||
|
||||
struct InlineFormattingContextState<'box_tree, 'a> {
|
||||
absolutely_positioned_fragments: &'a mut Vec<AbsolutelyPositionedFragment<'box_tree>>,
|
||||
containing_block: &'a ContainingBlock<'a>,
|
||||
struct InlineFormattingContextState<'box_tree, 'a, 'b> {
|
||||
positioning_context: &'a mut PositioningContext<'box_tree>,
|
||||
containing_block: &'b ContainingBlock<'b>,
|
||||
lines: Lines,
|
||||
inline_position: Length,
|
||||
partial_inline_boxes_stack: Vec<PartialInlineBoxFragment<'box_tree>>,
|
||||
|
|
@ -195,12 +195,12 @@ impl InlineFormattingContext {
|
|||
pub(super) fn layout<'a>(
|
||||
&'a self,
|
||||
layout_context: &LayoutContext,
|
||||
positioning_context: &mut PositioningContext<'a>,
|
||||
containing_block: &ContainingBlock,
|
||||
tree_rank: usize,
|
||||
absolutely_positioned_fragments: &mut Vec<AbsolutelyPositionedFragment<'a>>,
|
||||
) -> FlowLayout {
|
||||
let mut ifc = InlineFormattingContextState {
|
||||
absolutely_positioned_fragments,
|
||||
positioning_context,
|
||||
containing_block,
|
||||
partial_inline_boxes_stack: Vec::new(),
|
||||
lines: Lines {
|
||||
|
|
@ -244,7 +244,8 @@ impl InlineFormattingContext {
|
|||
panic!("display:none does not generate an abspos box")
|
||||
},
|
||||
};
|
||||
ifc.absolutely_positioned_fragments
|
||||
ifc.positioning_context
|
||||
.abspos
|
||||
.push(box_.layout(initial_start_corner, tree_rank));
|
||||
},
|
||||
InlineLevelBox::OutOfFlowFloatBox(_box_) => {
|
||||
|
|
@ -346,7 +347,7 @@ impl Lines {
|
|||
impl InlineBox {
|
||||
fn start_layout<'box_tree>(
|
||||
&'box_tree self,
|
||||
ifc: &mut InlineFormattingContextState<'box_tree, '_>,
|
||||
ifc: &mut InlineFormattingContextState<'box_tree, '_, '_>,
|
||||
) -> PartialInlineBoxFragment<'box_tree> {
|
||||
let style = self.style.clone();
|
||||
let cbis = ifc.containing_block.inline_size;
|
||||
|
|
@ -440,7 +441,7 @@ impl<'box_tree> PartialInlineBoxFragment<'box_tree> {
|
|||
|
||||
fn layout_atomic<'box_tree>(
|
||||
layout_context: &LayoutContext,
|
||||
ifc: &mut InlineFormattingContextState<'box_tree, '_>,
|
||||
ifc: &mut InlineFormattingContextState<'box_tree, '_, '_>,
|
||||
atomic: &'box_tree IndependentFormattingContext,
|
||||
) {
|
||||
let cbis = ifc.containing_block.inline_size;
|
||||
|
|
@ -521,9 +522,9 @@ fn layout_atomic<'box_tree>(
|
|||
// FIXME: Do we need to call `adjust_static_positions` somewhere near here?
|
||||
let independent_layout = non_replaced.layout(
|
||||
layout_context,
|
||||
ifc.positioning_context,
|
||||
&containing_block_for_children,
|
||||
dummy_tree_rank,
|
||||
ifc.absolutely_positioned_fragments,
|
||||
);
|
||||
|
||||
// https://drafts.csswg.org/css2/visudet.html#block-root-margin
|
||||
|
|
|
|||
|
|
@ -12,7 +12,7 @@ use crate::fragments::{AnonymousFragment, BoxFragment, Fragment};
|
|||
use crate::fragments::{CollapsedBlockMargins, CollapsedMargin};
|
||||
use crate::geom::flow_relative::{Rect, Sides, Vec2};
|
||||
use crate::positioned::adjust_static_positions;
|
||||
use crate::positioned::{AbsolutelyPositionedBox, AbsolutelyPositionedFragment};
|
||||
use crate::positioned::{AbsolutelyPositionedBox, PositioningContext};
|
||||
use crate::replaced::ReplacedContent;
|
||||
use crate::style_ext::ComputedValuesExt;
|
||||
use crate::{relative_adjustement, ContainingBlock};
|
||||
|
|
@ -67,9 +67,9 @@ impl BlockFormattingContext {
|
|||
pub(super) fn layout<'a>(
|
||||
&'a self,
|
||||
layout_context: &LayoutContext,
|
||||
positioning_context: &mut PositioningContext<'a>,
|
||||
containing_block: &ContainingBlock,
|
||||
tree_rank: usize,
|
||||
absolutely_positioned_fragments: &mut Vec<AbsolutelyPositionedFragment<'a>>,
|
||||
) -> IndependentLayout {
|
||||
let mut float_context;
|
||||
let float_context = if self.contains_floats {
|
||||
|
|
@ -80,9 +80,9 @@ impl BlockFormattingContext {
|
|||
};
|
||||
let flow_layout = self.contents.layout(
|
||||
layout_context,
|
||||
positioning_context,
|
||||
containing_block,
|
||||
tree_rank,
|
||||
absolutely_positioned_fragments,
|
||||
float_context,
|
||||
CollapsibleWithParentStartMargin(false),
|
||||
);
|
||||
|
|
@ -103,27 +103,27 @@ impl BlockContainer {
|
|||
fn layout<'a>(
|
||||
&'a self,
|
||||
layout_context: &LayoutContext,
|
||||
positioning_context: &mut PositioningContext<'a>,
|
||||
containing_block: &ContainingBlock,
|
||||
tree_rank: usize,
|
||||
absolutely_positioned_fragments: &mut Vec<AbsolutelyPositionedFragment<'a>>,
|
||||
float_context: Option<&mut FloatContext>,
|
||||
collapsible_with_parent_start_margin: CollapsibleWithParentStartMargin,
|
||||
) -> FlowLayout {
|
||||
match self {
|
||||
BlockContainer::BlockLevelBoxes(child_boxes) => layout_block_level_children(
|
||||
layout_context,
|
||||
positioning_context,
|
||||
child_boxes,
|
||||
containing_block,
|
||||
tree_rank,
|
||||
absolutely_positioned_fragments,
|
||||
float_context,
|
||||
collapsible_with_parent_start_margin,
|
||||
),
|
||||
BlockContainer::InlineFormattingContext(ifc) => ifc.layout(
|
||||
layout_context,
|
||||
positioning_context,
|
||||
containing_block,
|
||||
tree_rank,
|
||||
absolutely_positioned_fragments,
|
||||
),
|
||||
}
|
||||
}
|
||||
|
|
@ -131,10 +131,10 @@ impl BlockContainer {
|
|||
|
||||
fn layout_block_level_children<'a>(
|
||||
layout_context: &LayoutContext,
|
||||
positioning_context: &mut PositioningContext<'a>,
|
||||
child_boxes: &'a [Arc<BlockLevelBox>],
|
||||
containing_block: &ContainingBlock,
|
||||
tree_rank: usize,
|
||||
absolutely_positioned_fragments: &mut Vec<AbsolutelyPositionedFragment<'a>>,
|
||||
mut float_context: Option<&mut FloatContext>,
|
||||
collapsible_with_parent_start_margin: CollapsibleWithParentStartMargin,
|
||||
) -> FlowLayout {
|
||||
|
|
@ -194,7 +194,7 @@ fn layout_block_level_children<'a>(
|
|||
current_block_direction_position: Length,
|
||||
}
|
||||
|
||||
let abspos_so_far = absolutely_positioned_fragments.len();
|
||||
let abspos_so_far = positioning_context.abspos.len();
|
||||
let mut placement_state = PlacementState {
|
||||
next_in_flow_margin_collapses_with_parent_start_margin:
|
||||
collapsible_with_parent_start_margin.0,
|
||||
|
|
@ -213,9 +213,9 @@ fn layout_block_level_children<'a>(
|
|||
.map(|(tree_rank, box_)| {
|
||||
let mut fragment = box_.layout(
|
||||
layout_context,
|
||||
positioning_context,
|
||||
containing_block,
|
||||
tree_rank,
|
||||
absolutely_positioned_fragments,
|
||||
float_context.as_mut().map(|c| &mut **c),
|
||||
);
|
||||
place_block_level_fragment(&mut fragment, &mut placement_state);
|
||||
|
|
@ -227,19 +227,17 @@ fn layout_block_level_children<'a>(
|
|||
.par_iter()
|
||||
.enumerate()
|
||||
.mapfold_reduce_into(
|
||||
absolutely_positioned_fragments,
|
||||
|abspos_fragments, (tree_rank, box_)| {
|
||||
positioning_context,
|
||||
|positioning_context, (tree_rank, box_)| {
|
||||
box_.layout(
|
||||
layout_context,
|
||||
positioning_context,
|
||||
containing_block,
|
||||
tree_rank,
|
||||
abspos_fragments,
|
||||
/* float_context = */ None,
|
||||
)
|
||||
},
|
||||
|left_abspos_fragments, mut right_abspos_fragments| {
|
||||
left_abspos_fragments.append(&mut right_abspos_fragments);
|
||||
},
|
||||
|left, right| left.append(right),
|
||||
)
|
||||
.collect();
|
||||
for fragment in &mut fragments {
|
||||
|
|
@ -248,7 +246,7 @@ fn layout_block_level_children<'a>(
|
|||
}
|
||||
|
||||
adjust_static_positions(
|
||||
&mut absolutely_positioned_fragments[abspos_so_far..],
|
||||
&mut positioning_context.abspos[abspos_so_far..],
|
||||
&mut fragments,
|
||||
tree_rank,
|
||||
);
|
||||
|
|
@ -269,25 +267,27 @@ impl BlockLevelBox {
|
|||
fn layout<'a>(
|
||||
&'a self,
|
||||
layout_context: &LayoutContext,
|
||||
positioning_context: &mut PositioningContext<'a>,
|
||||
containing_block: &ContainingBlock,
|
||||
tree_rank: usize,
|
||||
absolutely_positioned_fragments: &mut Vec<AbsolutelyPositionedFragment<'a>>,
|
||||
float_context: Option<&mut FloatContext>,
|
||||
) -> Fragment {
|
||||
match self {
|
||||
BlockLevelBox::SameFormattingContextBlock { style, contents } => {
|
||||
Fragment::Box(layout_in_flow_non_replaced_block_level(
|
||||
layout_context,
|
||||
positioning_context,
|
||||
containing_block,
|
||||
absolutely_positioned_fragments,
|
||||
style,
|
||||
BlockLevelKind::SameFormattingContextBlock,
|
||||
|containing_block, nested_abspos, collapsible_with_parent_start_margin| {
|
||||
|positioning_context,
|
||||
containing_block,
|
||||
collapsible_with_parent_start_margin| {
|
||||
contents.layout(
|
||||
layout_context,
|
||||
positioning_context,
|
||||
containing_block,
|
||||
tree_rank,
|
||||
nested_abspos,
|
||||
float_context,
|
||||
collapsible_with_parent_start_margin,
|
||||
)
|
||||
|
|
@ -302,16 +302,16 @@ impl BlockLevelBox {
|
|||
)),
|
||||
Err(non_replaced) => Fragment::Box(layout_in_flow_non_replaced_block_level(
|
||||
layout_context,
|
||||
positioning_context,
|
||||
containing_block,
|
||||
absolutely_positioned_fragments,
|
||||
&contents.style,
|
||||
BlockLevelKind::EstablishesAnIndependentFormattingContext,
|
||||
|containing_block, nested_abspos, _| {
|
||||
|positioning_context, containing_block, _| {
|
||||
let independent_layout = non_replaced.layout(
|
||||
layout_context,
|
||||
positioning_context,
|
||||
containing_block,
|
||||
tree_rank,
|
||||
nested_abspos,
|
||||
);
|
||||
FlowLayout {
|
||||
fragments: independent_layout.fragments,
|
||||
|
|
@ -322,7 +322,9 @@ impl BlockLevelBox {
|
|||
)),
|
||||
},
|
||||
BlockLevelBox::OutOfFlowAbsolutelyPositionedBox(box_) => {
|
||||
absolutely_positioned_fragments.push(box_.layout(Vec2::zero(), tree_rank));
|
||||
positioning_context
|
||||
.abspos
|
||||
.push(box_.layout(Vec2::zero(), tree_rank));
|
||||
Fragment::Anonymous(AnonymousFragment::no_op(
|
||||
containing_block.style.writing_mode,
|
||||
))
|
||||
|
|
@ -347,13 +349,13 @@ enum BlockLevelKind {
|
|||
/// https://drafts.csswg.org/css2/visudet.html#normal-block
|
||||
fn layout_in_flow_non_replaced_block_level<'a>(
|
||||
layout_context: &LayoutContext,
|
||||
positioning_context: &mut PositioningContext<'a>,
|
||||
containing_block: &ContainingBlock,
|
||||
absolutely_positioned_fragments: &mut Vec<AbsolutelyPositionedFragment<'a>>,
|
||||
style: &Arc<ComputedValues>,
|
||||
block_level_kind: BlockLevelKind,
|
||||
layout_contents: impl FnOnce(
|
||||
&mut PositioningContext<'a>,
|
||||
&ContainingBlock,
|
||||
&mut Vec<AbsolutelyPositionedFragment<'a>>,
|
||||
CollapsibleWithParentStartMargin,
|
||||
) -> FlowLayout,
|
||||
) -> BoxFragment {
|
||||
|
|
@ -436,14 +438,14 @@ fn layout_in_flow_non_replaced_block_level<'a>(
|
|||
min_box_size.block == Length::zero() &&
|
||||
pb.block_end == Length::zero() &&
|
||||
block_level_kind == BlockLevelKind::SameFormattingContextBlock;
|
||||
let mut nested_abspos = vec![];
|
||||
let mut nested_positioning_context = PositioningContext { abspos: Vec::new() };
|
||||
let mut flow_layout = layout_contents(
|
||||
&containing_block_for_children,
|
||||
if style.get_box().position == Position::Relative {
|
||||
&mut nested_abspos
|
||||
&mut nested_positioning_context
|
||||
} else {
|
||||
absolutely_positioned_fragments
|
||||
positioning_context
|
||||
},
|
||||
&containing_block_for_children,
|
||||
this_start_margin_can_collapse_with_children,
|
||||
);
|
||||
let mut block_margins_collapsed_with_children = CollapsedBlockMargins::from_margin(&margin);
|
||||
|
|
@ -493,9 +495,8 @@ fn layout_in_flow_non_replaced_block_level<'a>(
|
|||
},
|
||||
};
|
||||
if style.get_box().position == Position::Relative {
|
||||
AbsolutelyPositionedFragment::in_positioned_containing_block(
|
||||
nested_positioning_context.layout_abspos(
|
||||
layout_context,
|
||||
&nested_abspos,
|
||||
&mut flow_layout.fragments,
|
||||
&content_rect.size,
|
||||
&padding,
|
||||
|
|
|
|||
|
|
@ -12,7 +12,8 @@ use crate::formatting_contexts::IndependentFormattingContext;
|
|||
use crate::fragments::Fragment;
|
||||
use crate::geom;
|
||||
use crate::geom::flow_relative::Vec2;
|
||||
use crate::positioned::{AbsolutelyPositionedBox, AbsolutelyPositionedFragment};
|
||||
use crate::positioned::PositioningContext;
|
||||
use crate::positioned::{AbsolutelyPositionedBox, CollectedAbsolutelyPositionedBox};
|
||||
use crate::replaced::ReplacedContent;
|
||||
use crate::sizing::ContentSizesRequest;
|
||||
use crate::style_ext::{Display, DisplayGeneratingBox, DisplayInside};
|
||||
|
|
@ -110,24 +111,25 @@ impl BoxTreeRoot {
|
|||
};
|
||||
|
||||
let dummy_tree_rank = 0;
|
||||
let mut absolutely_positioned_fragments = vec![];
|
||||
let mut positioning_context = PositioningContext { abspos: Vec::new() };
|
||||
let mut independent_layout = self.0.layout(
|
||||
layout_context,
|
||||
&mut positioning_context,
|
||||
&(&initial_containing_block).into(),
|
||||
dummy_tree_rank,
|
||||
&mut absolutely_positioned_fragments,
|
||||
);
|
||||
|
||||
let map =
|
||||
|a: &AbsolutelyPositionedFragment| a.layout(layout_context, &initial_containing_block);
|
||||
let map = |a: &CollectedAbsolutelyPositionedBox| {
|
||||
a.layout(layout_context, &initial_containing_block)
|
||||
};
|
||||
if layout_context.use_rayon {
|
||||
independent_layout
|
||||
.fragments
|
||||
.par_extend(absolutely_positioned_fragments.par_iter().map(map))
|
||||
.par_extend(positioning_context.abspos.par_iter().map(map))
|
||||
} else {
|
||||
independent_layout
|
||||
.fragments
|
||||
.extend(absolutely_positioned_fragments.iter().map(map))
|
||||
.extend(positioning_context.abspos.iter().map(map))
|
||||
}
|
||||
|
||||
FragmentTreeRoot(independent_layout.fragments)
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue