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layout_2020: Tag fragments with their pseudo content type

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This will allow us to answer queries and properly handle animations in
the future for fragments generated for pseudo content.
This commit is contained in:
Martin Robinson 2020-06-05 12:06:25 +02:00
parent 7df4655b60
commit 89855afa4d
14 changed files with 271 additions and 265 deletions
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12
components/layout_2020/positioned.rs
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@ -4,7 +4,7 @@
use crate::cell::ArcRefCell;
use crate::context::LayoutContext;
use crate::dom_traversal::{Contents, NodeExt};
use crate::dom_traversal::{Contents, NodeAndStyleInfo, NodeExt};
use crate::formatting_contexts::IndependentFormattingContext;
use crate::fragments::{BoxFragment, CollapsedBlockMargins, Fragment};
use crate::geom::flow_relative::{Rect, Sides, Vec2};
@ -71,25 +71,23 @@ pub(crate) enum AbsoluteBoxOffsets {
impl AbsolutelyPositionedBox {
pub fn construct<'dom>(
context: &LayoutContext,
node: impl NodeExt<'dom>,
style: Arc<ComputedValues>,
node_info: &NodeAndStyleInfo<impl NodeExt<'dom>>,
display_inside: DisplayInside,
contents: Contents,
) -> Self {
// "Shrink-to-fit" in https://drafts.csswg.org/css2/visudet.html#abs-non-replaced-width
let content_sizes = ContentSizesRequest::inline_if(
// If inline-size is non-auto, that value is used without shrink-to-fit
!style.inline_size_is_length() &&
!node_info.style.inline_size_is_length() &&
// If it is, then the only case where shrink-to-fit is *not* used is
// if both offsets are non-auto, leaving inline-size as the only variable
// in the constraint equation.
!style.inline_box_offsets_are_both_non_auto(),
!node_info.style.inline_box_offsets_are_both_non_auto(),
);
Self {
contents: IndependentFormattingContext::construct(
context,
node,
style,
node_info,
display_inside,
contents,
content_sizes,