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style: Lazily tweak the traversal root to account for sibling invalidations.

Browse source 
Bug: 1403078
Reviewed-by: heycam
MozReview-Commit-ID: Ij3nMOKu5FO
Signed-off-by: Emilio Cobos Álvarez <emilio@crisal.io>
This commit is contained in:
Emilio Cobos Álvarez 2017-09-26 07:25:06 +02:00
parent 1282e0d808
commit 07d55a4bf8
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GPG key ID: 056B727BB9C1027C
5 changed files with 69 additions and 63 deletions
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17
components/style/gecko/wrapper.rs
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@ -488,23 +488,6 @@ impl<'le> GeckoElement<'le> {
self.flags() & (NODE_NEEDS_FRAME as u32) != 0
}
/// Returns true if a traversal starting from this element requires a post-traversal.
pub fn needs_post_traversal(&self) -> bool {
debug!("needs_post_traversal: dd={}, aodd={}, lfcd={}, lfc={}, data={:?}",
self.has_dirty_descendants(),
self.has_animation_only_dirty_descendants(),
self.descendants_need_frames(),
self.needs_frame(),
self.borrow_data().unwrap());
let has_flag =
self.flags() & (ELEMENT_HAS_DIRTY_DESCENDANTS_FOR_SERVO as u32 |
ELEMENT_HAS_ANIMATION_ONLY_DIRTY_DESCENDANTS_FOR_SERVO as u32 |
NODE_DESCENDANTS_NEED_FRAMES as u32 |
NODE_NEEDS_FRAME as u32) != 0;
has_flag || self.borrow_data().unwrap().contains_restyle_data()
}
/// Returns true if this element has a shadow root.
fn has_shadow_root(&self) -> bool {
self.get_extended_slots().map_or(false, |slots| !slots.mShadowRoot.mRawPtr.is_null())