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Cache the first base element with an href attribute on the Document.
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parent
bd31b51a87
commit
6951119f5e
2 changed files with 56 additions and 3 deletions
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@ -2,7 +2,7 @@
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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use dom::attr::AttrHelpers;
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use dom::attr::{Attr, AttrHelpers};
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use dom::bindings::codegen::Bindings::HTMLBaseElementBinding;
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use dom::bindings::codegen::InheritTypes::ElementCast;
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use dom::bindings::codegen::InheritTypes::HTMLBaseElementDerived;
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@ -55,10 +55,52 @@ impl HTMLBaseElement {
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let parsed = UrlParser::new().base_url(&base).parse(&href.value());
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parsed.unwrap_or(base)
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}
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/// Update the cached base element in response to adding or removing an
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/// attribute.
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pub fn add_remove_attr(&self, attr: &Attr) {
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if *attr.local_name() == atom!("href") {
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let document = document_from_node(self);
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document.refresh_base_element();
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}
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}
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/// Update the cached base element in response to binding or unbinding from
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/// a tree.
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pub fn bind_unbind(&self, tree_in_doc: bool) {
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if !tree_in_doc {
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return;
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}
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if ElementCast::from_ref(self).has_attribute(&atom!("href")) {
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let document = document_from_node(self);
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document.refresh_base_element();
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}
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}
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}
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impl<'a> VirtualMethods for &'a HTMLBaseElement {
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fn super_type<'b>(&'b self) -> Option<&'b VirtualMethods> {
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Some(HTMLElementCast::from_borrowed_ref(self) as &VirtualMethods)
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}
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fn after_set_attr(&self, attr: &Attr) {
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self.super_type().unwrap().after_set_attr(attr);
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self.add_remove_attr(attr);
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}
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fn before_remove_attr(&self, attr: &Attr) {
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self.super_type().unwrap().before_remove_attr(attr);
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self.add_remove_attr(attr);
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}
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fn bind_to_tree(&self, tree_in_doc: bool) {
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self.super_type().unwrap().bind_to_tree(tree_in_doc);
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self.bind_unbind(tree_in_doc);
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}
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fn unbind_from_tree(&self, tree_in_doc: bool) {
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self.super_type().unwrap().unbind_from_tree(tree_in_doc);
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self.bind_unbind(tree_in_doc);
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}
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}
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