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layout: Take the white-space property into account when computing

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intrinsic sizes of inline flows.

Improves Amazon.
This commit is contained in:
Patrick Walton 2015-04-22 17:07:06 -07:00
parent f9a50c9be0
commit f8b9b31680
5 changed files with 154 additions and 7 deletions
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45
components/layout/inline.rs
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@ -1133,12 +1133,49 @@ impl Flow for InlineFlow {
flow::mut_base(kid).floats = Floats::new(writing_mode);
}
let mut computation = IntrinsicISizesContribution::new();
let mut intrinsic_sizes_for_flow = IntrinsicISizesContribution::new();
let mut intrinsic_sizes_for_inline_run = IntrinsicISizesContribution::new();
let mut intrinsic_sizes_for_nonbroken_run = IntrinsicISizesContribution::new();
for fragment in self.fragments.fragments.iter_mut() {
debug!("Flow: measuring {:?}", *fragment);
computation.union_inline(&fragment.compute_intrinsic_inline_sizes().finish())
let intrinsic_sizes_for_fragment = fragment.compute_intrinsic_inline_sizes().finish();
match fragment.style.get_inheritedtext().white_space {
white_space::T::nowrap => {
intrinsic_sizes_for_nonbroken_run.union_nonbreaking_inline(
&intrinsic_sizes_for_fragment)
}
white_space::T::pre => {
intrinsic_sizes_for_nonbroken_run.union_nonbreaking_inline(
&intrinsic_sizes_for_fragment);
// Flush the intrinsic sizes we've been gathering up in order to handle the
// line break, if necessary.
if fragment.requires_line_break_afterward_if_wrapping_on_newlines() {
intrinsic_sizes_for_inline_run.union_inline(
&intrinsic_sizes_for_nonbroken_run.finish());
intrinsic_sizes_for_nonbroken_run = IntrinsicISizesContribution::new();
intrinsic_sizes_for_flow.union_block(
&intrinsic_sizes_for_inline_run.finish());
intrinsic_sizes_for_inline_run = IntrinsicISizesContribution::new();
}
}
white_space::T::normal => {
// Flush the intrinsic sizes we were gathering up for the nonbroken run, if
// necessary.
intrinsic_sizes_for_inline_run.union_inline(
&intrinsic_sizes_for_nonbroken_run.finish());
intrinsic_sizes_for_nonbroken_run = IntrinsicISizesContribution::new();
intrinsic_sizes_for_nonbroken_run.union_inline(&intrinsic_sizes_for_fragment)
}
}
}
self.base.intrinsic_inline_sizes = computation.finish()
// Flush any remaining nonbroken-run and inline-run intrinsic sizes.
intrinsic_sizes_for_inline_run.union_inline(&intrinsic_sizes_for_nonbroken_run.finish());
intrinsic_sizes_for_flow.union_block(&intrinsic_sizes_for_inline_run.finish());
// Finish up the computation.
self.base.intrinsic_inline_sizes = intrinsic_sizes_for_flow.finish()
}
/// Recursively (top-down) determines the actual inline-size of child contexts and fragments.