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Track the restyle root and use it to do less work during the traversal.
MozReview-Commit-ID: A8O3JOpsv4E
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parent
0534f72925
commit
d4aa8e3cef
9 changed files with 132 additions and 68 deletions
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@ -61,6 +61,7 @@ use gecko_bindings::structs::ELEMENT_HAS_DIRTY_DESCENDANTS_FOR_SERVO;
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use gecko_bindings::structs::ELEMENT_HAS_SNAPSHOT;
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use gecko_bindings::structs::EffectCompositor_CascadeLevel as CascadeLevel;
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use gecko_bindings::structs::NODE_DESCENDANTS_NEED_FRAMES;
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use gecko_bindings::structs::NODE_NEEDS_FRAME;
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use gecko_bindings::structs::nsChangeHint;
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use gecko_bindings::structs::nsIDocument_DocumentTheme as DocumentTheme;
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use gecko_bindings::structs::nsRestyleHint;
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@ -493,6 +494,33 @@ impl<'le> GeckoElement<'le> {
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unsafe { Gecko_UnsetNodeFlags(self.as_node().0, flags) }
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}
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/// Returns true if this element has descendants for lazy frame construction.
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pub fn descendants_need_frames(&self) -> bool {
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self.flags() & (NODE_DESCENDANTS_NEED_FRAMES as u32) != 0
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}
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/// Returns true if this element needs lazy frame construction.
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pub fn needs_frame(&self) -> bool {
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self.flags() & (NODE_NEEDS_FRAME as u32) != 0
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}
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/// Returns true if a traversal starting from this element requires a post-traversal.
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pub fn needs_post_traversal(&self) -> bool {
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debug!("needs_post_traversal: dd={}, aodd={}, lfcd={}, lfc={}, restyle={:?}",
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self.has_dirty_descendants(),
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self.has_animation_only_dirty_descendants(),
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self.descendants_need_frames(),
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self.needs_frame(),
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self.borrow_data().unwrap().restyle);
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let has_flag =
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self.flags() & (ELEMENT_HAS_DIRTY_DESCENDANTS_FOR_SERVO as u32 |
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ELEMENT_HAS_ANIMATION_ONLY_DIRTY_DESCENDANTS_FOR_SERVO as u32 |
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NODE_DESCENDANTS_NEED_FRAMES as u32 |
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NODE_NEEDS_FRAME as u32) != 0;
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has_flag || self.borrow_data().unwrap().restyle.contains_restyle_data()
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}
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/// Returns true if this element has a shadow root.
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fn has_shadow_root(&self) -> bool {
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self.get_extended_slots().map_or(false, |slots| !slots.mShadowRoot.mRawPtr.is_null())
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@ -1070,6 +1098,13 @@ impl<'le> TElement for GeckoElement<'le> {
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}
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#[inline]
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unsafe fn clear_dirty_bits(&self) {
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self.unset_flags(ELEMENT_HAS_DIRTY_DESCENDANTS_FOR_SERVO as u32 |
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ELEMENT_HAS_ANIMATION_ONLY_DIRTY_DESCENDANTS_FOR_SERVO as u32 |
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NODE_DESCENDANTS_NEED_FRAMES as u32 |
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NODE_NEEDS_FRAME as u32)
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}
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fn is_visited_link(&self) -> bool {
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use element_state::IN_VISITED_STATE;
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self.get_state().intersects(IN_VISITED_STATE)
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