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style: More fine-grained viewport units invalidation

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This should speed up window resize significantly.

Differential Revision: https://phabricator.services.mozilla.com/D118878
This commit is contained in:
Emilio Cobos Álvarez 2023-05-22 10:01:09 +02:00 • committed by Oriol Brufau
parent 85b7a60a69
commit 25edb3c21b
6 changed files with 88 additions and 1 deletions
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19
components/style/data.rs
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@ -175,6 +175,25 @@ impl ElementStyles {
self.primary().get_box().clone_display().is_none()
}
/// Whether this element uses viewport units.
pub fn uses_viewport_units(&self) -> bool {
use crate::computed_value_flags::ComputedValueFlags;
if self.primary().flags.intersects(ComputedValueFlags::USES_VIEWPORT_UNITS) {
return true;
}
for pseudo_style in self.pseudos.as_array() {
if let Some(ref pseudo_style) = pseudo_style {
if pseudo_style.flags.intersects(ComputedValueFlags::USES_VIEWPORT_UNITS) {
return true;
}
}
}
false
}
#[cfg(feature = "gecko")]
fn size_of_excluding_cvs(&self, _ops: &mut MallocSizeOfOps) -> usize {
// As the method name suggests, we don't measures the ComputedValues