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script: delay Mutation initialization (#35291)

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Signed-off-by: Euclid Ye <yezhizhenjiakang@gmail.com>
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Euclid Ye 2025-02-05 14:28:10 +08:00 • committed by GitHub
parent 503bb10c5b
commit 789736590b
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5 changed files with 31 additions and 23 deletions
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10
components/script/dom/element.rs
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@ -5,7 +5,7 @@
//! Element nodes.
use std::borrow::Cow;
use std::cell::Cell;
use std::cell::{Cell, LazyCell};
use std::default::Default;
use std::ops::Deref;
use std::rc::Rc;
@ -1557,11 +1557,11 @@ impl Element {
pub(crate) fn push_attribute(&self, attr: &Attr) {
let name = attr.local_name().clone();
let namespace = attr.namespace().clone();
let mutation = Mutation::Attribute {
let mutation = LazyCell::new(|| Mutation::Attribute {
name: name.clone(),
namespace: namespace.clone(),
old_value: None,
};
});
MutationObserver::queue_a_mutation_record(&self.node, mutation);
@ -1749,11 +1749,11 @@ impl Element {
let name = attr.local_name().clone();
let namespace = attr.namespace().clone();
let old_value = DOMString::from(&**attr.value());
let mutation = Mutation::Attribute {
let mutation = LazyCell::new(|| Mutation::Attribute {
name: name.clone(),
namespace: namespace.clone(),
old_value: Some(old_value.clone()),
};
});
MutationObserver::queue_a_mutation_record(&self.node, mutation);