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layout: Implement text-overflow: ellipsis per CSS-UI-3 § 6.2.

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Only the one-value syntax is supported for now.
This commit is contained in:
Patrick Walton 2015-01-09 07:25:49 -08:00
parent aba5c16091
commit 0f8e436745
10 changed files with 195 additions and 56 deletions
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12
components/layout/text.rs
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@ -194,16 +194,15 @@ impl TextRunScanner {
mem::replace(&mut self.clump, DList::new()).into_iter().enumerate() {
let range = *new_ranges.get(logical_offset);
if range.is_empty() {
debug!("Elided an `SpecificFragmentInfo::UnscannedText` because it was zero-length after \
compression; {:?}",
old_fragment);
debug!("Elided an `SpecificFragmentInfo::UnscannedText` because it was \
zero-length after compression");
continue
}
let text_size = old_fragment.border_box.size;
let &mut NewLinePositions(ref mut new_line_positions) =
new_line_positions.get_mut(logical_offset);
let new_text_fragment_info =
let mut new_text_fragment_info =
box ScannedTextFragmentInfo::new(run.clone(),
range,
mem::replace(new_line_positions, Vec::new()),
@ -211,7 +210,10 @@ impl TextRunScanner {
let new_metrics = new_text_fragment_info.run.metrics_for_range(&range);
let bounding_box_size = bounding_box_for_run_metrics(&new_metrics,
old_fragment.style.writing_mode);
let new_fragment = old_fragment.transform(bounding_box_size, new_text_fragment_info);
new_text_fragment_info.content_size = bounding_box_size;
let new_fragment =
old_fragment.transform(bounding_box_size,
SpecificFragmentInfo::ScannedText(new_text_fragment_info));
out_fragments.push(new_fragment)
}