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script: delay Mutation initialization (#35291)

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Signed-off-by: Euclid Ye <yezhizhenjiakang@gmail.com>
This commit is contained in:
Euclid Ye 2025-02-05 14:28:10 +08:00 • committed by GitHub
parent 503bb10c5b
commit 789736590b
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GPG key ID: B5690EEEBB952194
5 changed files with 31 additions and 23 deletions
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22
components/script/dom/node.rs
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@ -5,7 +5,7 @@
//! The core DOM types. Defines the basic DOM hierarchy as well as all the HTML elements.
use std::borrow::Cow;
use std::cell::{Cell, UnsafeCell};
use std::cell::{Cell, LazyCell, UnsafeCell};
use std::default::Default;
use std::ops::Range;
use std::slice::from_ref;
@ -2130,12 +2130,12 @@ impl Node {
// Step 5.
vtable_for(node).children_changed(&ChildrenMutation::replace_all(new_nodes.r(), &[]));
let mutation = Mutation::ChildList {
let mutation = LazyCell::new(|| Mutation::ChildList {
added: None,
removed: Some(new_nodes.r()),
prev: None,
next: None,
};
});
MutationObserver::queue_a_mutation_record(node, mutation);
new_nodes.r()
@ -2208,12 +2208,12 @@ impl Node {
child,
));
let mutation = Mutation::ChildList {
let mutation = LazyCell::new(|| Mutation::ChildList {
added: Some(new_nodes),
removed: None,
prev: previous_sibling.as_deref(),
next: child,
};
});
MutationObserver::queue_a_mutation_record(parent, mutation);
}
@ -2287,12 +2287,12 @@ impl Node {
));
if !removed_nodes.is_empty() || !added_nodes.is_empty() {
let mutation = Mutation::ChildList {
let mutation = LazyCell::new(|| Mutation::ChildList {
added: Some(added_nodes),
removed: Some(removed_nodes.r()),
prev: None,
next: None,
};
});
MutationObserver::queue_a_mutation_record(parent, mutation);
}
parent.owner_doc().remove_script_and_layout_blocker();
@ -2405,12 +2405,12 @@ impl Node {
));
let removed = [node];
let mutation = Mutation::ChildList {
let mutation = LazyCell::new(|| Mutation::ChildList {
added: None,
removed: Some(&removed),
prev: old_previous_sibling.as_deref(),
next: old_next_sibling.as_deref(),
};
});
MutationObserver::queue_a_mutation_record(parent, mutation);
}
parent.owner_doc().remove_script_and_layout_blocker();
@ -3072,12 +3072,12 @@ impl NodeMethods<crate::DomTypeHolder> for Node {
reference_child,
));
let removed = removed_child.map(|r| [r]);
let mutation = Mutation::ChildList {
let mutation = LazyCell::new(|| Mutation::ChildList {
added: Some(nodes),
removed: removed.as_ref().map(|r| &r[..]),
prev: previous_sibling.as_deref(),
next: reference_child,
};
});
MutationObserver::queue_a_mutation_record(self, mutation);