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.
This commit is contained in:
Anthony Ramine 2015-07-18 14:45:52 +02:00
parent 389a9ff643
commit 7b40cc9fd7
7 changed files with 194 additions and 180 deletions

View file

@ -27,7 +27,8 @@ use dom::eventtarget::{EventTarget, EventTargetTypeId};
use dom::event::{Event, EventBubbles, EventCancelable, EventHelpers};
use dom::element::ElementTypeId;
use dom::htmlelement::{HTMLElement, HTMLElementTypeId};
use dom::node::{Node, NodeHelpers, NodeTypeId, document_from_node, window_from_node, CloneChildrenFlag};
use dom::node::{ChildrenMutation, CloneChildrenFlag, Node, NodeHelpers};
use dom::node::{NodeTypeId, document_from_node, window_from_node};
use dom::servohtmlparser::ServoHTMLParserHelpers;
use dom::virtualmethods::VirtualMethods;
use dom::window::{WindowHelpers, ScriptHelpers};
@ -564,9 +565,9 @@ impl<'a> VirtualMethods for &'a HTMLScriptElement {
}
}
fn child_inserted(&self, child: &Node) {
fn children_changed(&self, mutation: &ChildrenMutation) {
if let Some(ref s) = self.super_type() {
s.child_inserted(child);
s.children_changed(mutation);
}
let node = NodeCast::from_ref(*self);
if !self.parser_inserted.get() && node.is_in_doc() {