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layout: Position and size list images properly in the block direction.

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Improves Wikipedia.
This commit is contained in:
Patrick Walton 2015-04-03 13:42:13 -07:00
parent 3fb666cf60
commit 7a08a6c1ab
4 changed files with 102 additions and 17 deletions
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44
components/layout/list_item.rs
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@ -15,6 +15,8 @@ use flow::{Flow, FlowClass};
use fragment::{CoordinateSystem, Fragment, FragmentBorderBoxIterator, GeneratedContentInfo};
use generated_content;
use incremental::RESOLVE_GENERATED_CONTENT;
use inline::InlineMetrics;
use text;
use wrapper::ThreadSafeLayoutNode;
use geom::{Point2D, Rect};
@ -84,30 +86,38 @@ impl Flow for ListItemFlow {
fn assign_inline_sizes(&mut self, layout_context: &LayoutContext) {
self.block_flow.assign_inline_sizes(layout_context);
match self.marker {
None => {}
Some(ref mut marker) => {
// Do this now. There's no need to do this in bubble-widths, since markers do not
// contribute to the inline size of this flow.
let intrinsic_inline_sizes = marker.compute_intrinsic_inline_sizes();
if let Some(ref mut marker) = self.marker {
let containing_block_inline_size = self.block_flow.base.block_container_inline_size;
marker.assign_replaced_inline_size_if_necessary(containing_block_inline_size);
marker.border_box.size.inline =
intrinsic_inline_sizes.content_intrinsic_sizes.preferred_inline_size;
marker.border_box.start.i = self.block_flow.fragment.border_box.start.i -
marker.border_box.size.inline;
}
// Do this now. There's no need to do this in bubble-widths, since markers do not
// contribute to the inline size of this flow.
let intrinsic_inline_sizes = marker.compute_intrinsic_inline_sizes();
marker.border_box.size.inline =
intrinsic_inline_sizes.content_intrinsic_sizes.preferred_inline_size;
marker.border_box.start.i = self.block_flow.fragment.border_box.start.i -
marker.border_box.size.inline;
}
}
fn assign_block_size<'a>(&mut self, layout_context: &'a LayoutContext<'a>) {
self.block_flow.assign_block_size(layout_context);
match self.marker {
None => {}
Some(ref mut marker) => {
marker.border_box.start.b = Au(0);
marker.border_box.size.block = marker.calculate_line_height(layout_context);
}
if let Some(ref mut marker) = self.marker {
let containing_block_block_size =
self.block_flow.base.block_container_explicit_block_size.unwrap_or(Au(0));
marker.assign_replaced_block_size_if_necessary(containing_block_block_size);
let font_metrics =
text::font_metrics_for_style(layout_context.font_context(),
marker.style.get_font_arc());
let line_height = text::line_height_from_style(&*marker.style, &font_metrics);
let item_inline_metrics = InlineMetrics::from_font_metrics(&font_metrics, line_height);
let marker_inline_metrics = marker.inline_metrics(layout_context);
marker.border_box.start.b = item_inline_metrics.block_size_above_baseline -
marker_inline_metrics.block_size_above_baseline;
marker.border_box.size.block = marker_inline_metrics.block_size_above_baseline;
}
}