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Pass a LayoutContext to TextRun::layout in 2020
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parent
ea32495504
commit
1446756774
7 changed files with 94 additions and 23 deletions
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@ -4,6 +4,7 @@
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//! Flow layout, also known as block-and-inline layout.
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use crate::context::LayoutContext;
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use crate::flow::float::{FloatBox, FloatContext};
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use crate::flow::inline::InlineFormattingContext;
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use crate::fragments::{
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@ -67,6 +68,7 @@ struct CollapsibleWithParentStartMargin(bool);
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impl BlockFormattingContext {
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pub(super) fn layout<'a>(
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&'a self,
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layout_context: &LayoutContext,
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containing_block: &ContainingBlock,
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tree_rank: usize,
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absolutely_positioned_fragments: &mut Vec<AbsolutelyPositionedFragment<'a>>,
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@ -79,6 +81,7 @@ impl BlockFormattingContext {
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None
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};
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let mut flow_children = self.contents.layout(
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layout_context,
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containing_block,
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tree_rank,
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absolutely_positioned_fragments,
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@ -97,6 +100,7 @@ impl BlockFormattingContext {
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impl BlockContainer {
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fn layout<'a>(
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&'a self,
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layout_context: &LayoutContext,
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containing_block: &ContainingBlock,
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tree_rank: usize,
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absolutely_positioned_fragments: &mut Vec<AbsolutelyPositionedFragment<'a>>,
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@ -105,6 +109,7 @@ impl BlockContainer {
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) -> FlowChildren {
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match self {
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BlockContainer::BlockLevelBoxes(child_boxes) => layout_block_level_children(
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layout_context,
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child_boxes,
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containing_block,
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tree_rank,
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@ -112,14 +117,18 @@ impl BlockContainer {
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float_context,
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collapsible_with_parent_start_margin,
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),
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BlockContainer::InlineFormattingContext(ifc) => {
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ifc.layout(containing_block, tree_rank, absolutely_positioned_fragments)
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},
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BlockContainer::InlineFormattingContext(ifc) => ifc.layout(
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layout_context,
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containing_block,
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tree_rank,
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absolutely_positioned_fragments,
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),
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}
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}
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}
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fn layout_block_level_children<'a>(
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layout_context: &LayoutContext,
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child_boxes: &'a [Arc<BlockLevelBox>],
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containing_block: &ContainingBlock,
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tree_rank: usize,
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@ -201,6 +210,7 @@ fn layout_block_level_children<'a>(
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.enumerate()
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.map(|(tree_rank, box_)| {
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let mut fragment = box_.layout(
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layout_context,
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containing_block,
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tree_rank,
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absolutely_positioned_fragments,
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@ -218,6 +228,7 @@ fn layout_block_level_children<'a>(
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absolutely_positioned_fragments,
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|abspos_fragments, (tree_rank, box_)| {
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box_.layout(
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layout_context,
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containing_block,
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tree_rank,
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abspos_fragments,
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@ -255,6 +266,7 @@ fn layout_block_level_children<'a>(
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impl BlockLevelBox {
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fn layout<'a>(
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&'a self,
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layout_context: &LayoutContext,
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containing_block: &ContainingBlock,
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tree_rank: usize,
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absolutely_positioned_fragments: &mut Vec<AbsolutelyPositionedFragment<'a>>,
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@ -263,12 +275,14 @@ impl BlockLevelBox {
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match self {
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BlockLevelBox::SameFormattingContextBlock { style, contents } => {
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Fragment::Box(layout_in_flow_non_replaced_block_level(
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layout_context,
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containing_block,
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absolutely_positioned_fragments,
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style,
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BlockLevelKind::SameFormattingContextBlock,
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|containing_block, nested_abspos, collapsible_with_parent_start_margin| {
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contents.layout(
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layout_context,
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containing_block,
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tree_rank,
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nested_abspos,
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@ -284,12 +298,13 @@ impl BlockLevelBox {
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match *replaced {}
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},
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Err(contents) => Fragment::Box(layout_in_flow_non_replaced_block_level(
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layout_context,
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containing_block,
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absolutely_positioned_fragments,
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style,
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BlockLevelKind::EstablishesAnIndependentFormattingContext,
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|containing_block, nested_abspos, _| {
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contents.layout(containing_block, tree_rank, nested_abspos)
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contents.layout(layout_context, containing_block, tree_rank, nested_abspos)
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},
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)),
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},
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@ -314,6 +329,7 @@ enum BlockLevelKind {
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/// https://drafts.csswg.org/css2/visudet.html#blockwidth
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/// https://drafts.csswg.org/css2/visudet.html#normal-block
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fn layout_in_flow_non_replaced_block_level<'a>(
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layout_context: &LayoutContext,
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containing_block: &ContainingBlock,
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absolutely_positioned_fragments: &mut Vec<AbsolutelyPositionedFragment<'a>>,
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style: &Arc<ComputedValues>,
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@ -433,6 +449,7 @@ fn layout_in_flow_non_replaced_block_level<'a>(
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};
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if style.get_box().position == Position::Relative {
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AbsolutelyPositionedFragment::in_positioned_containing_block(
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layout_context,
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&nested_abspos,
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&mut flow_children.fragments,
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&content_rect.size,
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