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Introduce VirtualMethods::children_changed()
This virtual method mimics the behaviour of mutation observers and make it more viable than the older child_inserted(), which didn't cover removed nodes and was called as many times as there were inserted nodes. A few other shortcomings where remove_child() was called directly instead of Node::remove() were also fixed while at it.
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7 changed files with 194 additions and 180 deletions
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@ -13,7 +13,7 @@ use dom::document::{Document, DocumentHelpers};
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use dom::eventtarget::{EventTarget, EventTargetTypeId};
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use dom::element::ElementTypeId;
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use dom::htmlelement::{HTMLElement, HTMLElementTypeId};
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use dom::node::{Node, NodeHelpers, NodeTypeId};
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use dom::node::{ChildrenMutation, Node, NodeHelpers, NodeTypeId};
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use dom::text::Text;
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use dom::virtualmethods::VirtualMethods;
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use util::str::DOMString;
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@ -75,15 +75,13 @@ impl<'a> VirtualMethods for &'a HTMLTitleElement {
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Some(htmlelement as &VirtualMethods)
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}
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fn child_inserted(&self, child: &Node) {
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fn children_changed(&self, mutation: &ChildrenMutation) {
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if let Some(ref s) = self.super_type() {
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s.child_inserted(child);
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s.children_changed(mutation);
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}
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let node = NodeCast::from_ref(*self);
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if node.is_in_doc() {
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let document = node.owner_doc();
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document.r().title_changed();
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node.owner_doc().title_changed();
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}
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}
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