mirror of
https://github.com/servo/servo.git
synced 2025-08-03 04:30:10 +01:00
Simplify ThreadSafeLayoutNodeChildrenIterator::next().
This commit is contained in:
parent
126f5ae8f0
commit
b3892b74f7
1 changed files with 40 additions and 35 deletions
|
@ -670,15 +670,6 @@ impl<'ln> ThreadSafeLayoutNode<'ln> {
|
|||
}
|
||||
}
|
||||
|
||||
/// Returns the next sibling of this node. Unsafe and private because this can lead to races.
|
||||
unsafe fn next_sibling(&self) -> Option<ThreadSafeLayoutNode<'ln>> {
|
||||
if self.pseudo.is_before() {
|
||||
return self.get_jsmanaged().first_child_ref().map(|node| self.new_with_this_lifetime(&node))
|
||||
}
|
||||
|
||||
self.get_jsmanaged().next_sibling_ref().map(|node| self.new_with_this_lifetime(&node))
|
||||
}
|
||||
|
||||
/// Returns an iterator over this node's children.
|
||||
pub fn children(&self) -> ThreadSafeLayoutNodeChildrenIterator<'ln> {
|
||||
ThreadSafeLayoutNodeChildrenIterator {
|
||||
|
@ -975,34 +966,48 @@ impl<'a> Iterator for ThreadSafeLayoutNodeChildrenIterator<'a> {
|
|||
fn next(&mut self) -> Option<ThreadSafeLayoutNode<'a>> {
|
||||
let node = self.current_node.clone();
|
||||
|
||||
match node {
|
||||
Some(ref node) => {
|
||||
if node.pseudo.is_after() {
|
||||
return None
|
||||
}
|
||||
|
||||
self.current_node = if self.parent_node.pseudo == PseudoElementType::Normal {
|
||||
self.current_node.clone().and_then(|node| {
|
||||
unsafe {
|
||||
node.next_sibling()
|
||||
if let Some(ref node) = node {
|
||||
self.current_node = match node.pseudo {
|
||||
PseudoElementType::Before(_) => {
|
||||
match unsafe { self.parent_node.get_jsmanaged().first_child_ref() } {
|
||||
Some(first) => {
|
||||
Some(unsafe {
|
||||
self.parent_node.new_with_this_lifetime(&first)
|
||||
})
|
||||
},
|
||||
None => {
|
||||
if self.parent_node.has_after_pseudo() {
|
||||
let pseudo = PseudoElementType::After(
|
||||
self.parent_node.get_after_display());
|
||||
Some(self.parent_node.with_pseudo(pseudo))
|
||||
} else {
|
||||
None
|
||||
}
|
||||
}
|
||||
})
|
||||
} else {
|
||||
}
|
||||
},
|
||||
PseudoElementType::Normal => {
|
||||
match unsafe { node.get_jsmanaged().next_sibling_ref() } {
|
||||
Some(next) => {
|
||||
Some(unsafe {
|
||||
self.parent_node.new_with_this_lifetime(&next)
|
||||
})
|
||||
},
|
||||
None => {
|
||||
if self.parent_node.has_after_pseudo() {
|
||||
let pseudo = PseudoElementType::After(
|
||||
self.parent_node.get_after_display());
|
||||
Some(self.parent_node.with_pseudo(pseudo))
|
||||
} else {
|
||||
None
|
||||
}
|
||||
}
|
||||
}
|
||||
},
|
||||
PseudoElementType::After(_) => {
|
||||
None
|
||||
};
|
||||
}
|
||||
None => {
|
||||
if self.parent_node.has_after_pseudo() {
|
||||
let pseudo_after_node = if self.parent_node.pseudo == PseudoElementType::Normal {
|
||||
let pseudo = PseudoElementType::After(self.parent_node.get_after_display());
|
||||
Some(self.parent_node.with_pseudo(pseudo))
|
||||
} else {
|
||||
None
|
||||
};
|
||||
self.current_node = pseudo_after_node;
|
||||
return self.current_node.clone()
|
||||
}
|
||||
}
|
||||
},
|
||||
};
|
||||
}
|
||||
|
||||
node
|
||||
|
|
Loading…
Add table
Add a link
Reference in a new issue