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layout: Don't count lines that consist solely of hypothetical boxes when

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determining the baseline offset of the last line.

Improves Twitter by placing the favorite icon in the right place
vertically.
This commit is contained in:
Patrick Walton 2016-09-27 18:26:40 -07:00
parent 3a56cc7f2f
commit 0803ef98e3
4 changed files with 46 additions and 5 deletions
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13
components/layout/inline.rs
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@ -1262,13 +1262,16 @@ impl InlineFlow {
}
pub fn baseline_offset_of_last_line(&self) -> Option<Au> {
match self.lines.last() {
None => None,
Some(ref last_line) => {
Some(last_line.bounds.start.b + last_line.bounds.size.block -
last_line.inline_metrics.depth_below_baseline)
// Find the last line that doesn't consist entirely of hypothetical boxes.
for line in self.lines.iter().rev() {
if (line.range.begin().get()..line.range.end().get()).any(|index| {
!self.fragments.fragments[index as usize].is_hypothetical()
}) {
return Some(line.bounds.start.b + line.bounds.size.block -
line.inline_metrics.depth_below_baseline)
}
}
None
}
}