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Add initial support for table box tree construction (#30799)

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This is the first part of constructing the box tree for table layout. No
layout is actually done and the construction of tables is now hidden
behind a flag (in order to not regress WPT).  Notably, this does not
handle anonymous table part construction, when the DOM does not reflect
a fully-formed table. That's part two.

Progress toward #27459.

Co-authored-by: Oriol Brufau <obrufau@igalia.com>
Co-authored-by: Manish Goregaokar <manishsmail@gmail.com>
This commit is contained in:
Martin Robinson 2023-12-05 12:10:45 +01:00 • committed by GitHub
parent 63701b338c
commit f0b4162328
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12 changed files with 919 additions and 18 deletions
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20
components/layout_2020/formatting_contexts.rs
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@ -21,6 +21,7 @@ use crate::positioned::PositioningContext;
use crate::replaced::ReplacedContent;
use crate::sizing::{self, ContentSizes};
use crate::style_ext::DisplayInside;
use crate::table::Table;
use crate::ContainingBlock;
/// https://drafts.csswg.org/css-display/#independent-formatting-context
@ -54,6 +55,7 @@ pub(crate) struct ReplacedFormattingContext {
pub(crate) enum NonReplacedFormattingContextContents {
Flow(BlockFormattingContext),
Flex(FlexContainer),
Table(Table),
// Other layout modes go here
}
@ -73,7 +75,7 @@ impl IndependentFormattingContext {
propagated_text_decoration_line: TextDecorationLine,
) -> Self {
match contents.try_into() {
Ok(non_replaced) => {
Ok(non_replaced_contents) => {
let contents = match display_inside {
DisplayInside::Flow { is_list_item } |
DisplayInside::FlowRoot { is_list_item } => {
@ -81,7 +83,7 @@ impl IndependentFormattingContext {
BlockFormattingContext::construct(
context,
node_and_style_info,
non_replaced,
non_replaced_contents,
propagated_text_decoration_line,
is_list_item,
),
@ -91,7 +93,15 @@ impl IndependentFormattingContext {
NonReplacedFormattingContextContents::Flex(FlexContainer::construct(
context,
node_and_style_info,
non_replaced,
non_replaced_contents,
propagated_text_decoration_line,
))
},
DisplayInside::Table => {
NonReplacedFormattingContextContents::Table(Table::construct(
context,
node_and_style_info,
non_replaced_contents,
propagated_text_decoration_line,
))
},
@ -190,6 +200,9 @@ impl NonReplacedFormattingContext {
NonReplacedFormattingContextContents::Flex(fc) => {
fc.layout(layout_context, positioning_context, containing_block)
},
NonReplacedFormattingContextContents::Table(table) => {
table.layout(layout_context, positioning_context, containing_block)
},
}
}
@ -213,6 +226,7 @@ impl NonReplacedFormattingContextContents {
.contents
.inline_content_sizes(layout_context, writing_mode),
Self::Flex(inner) => inner.inline_content_sizes(),
Self::Table(table) => table.inline_content_sizes(),
}
}
}