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89ab368258
Properly propagate changes when range or trees are mutated Does the same thing as #6817, but storing Range instances directly in their start and end containers. Cc @dzbarsky <!-- Reviewable:start --> [<img src="https://reviewable.io/review_button.png" height=40 alt="Review on Reviewable"/>](https://reviewable.io/reviews/servo/servo/8506) <!-- Reviewable:end -->
84 lines
2.9 KiB
Rust
84 lines
2.9 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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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::Attr;
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use dom::bindings::codegen::Bindings::HTMLBaseElementBinding;
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use dom::bindings::inheritance::Castable;
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use dom::bindings::js::Root;
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use dom::document::Document;
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use dom::element::{AttributeMutation, Element};
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use dom::htmlelement::HTMLElement;
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use dom::node::{Node, UnbindContext, document_from_node};
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use dom::virtualmethods::VirtualMethods;
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use string_cache::Atom;
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use url::Url;
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use util::str::DOMString;
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#[dom_struct]
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pub struct HTMLBaseElement {
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htmlelement: HTMLElement
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}
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impl HTMLBaseElement {
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fn new_inherited(localName: Atom, prefix: Option<DOMString>, document: &Document) -> HTMLBaseElement {
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HTMLBaseElement {
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htmlelement: HTMLElement::new_inherited(localName, prefix, document)
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}
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}
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#[allow(unrooted_must_root)]
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pub fn new(localName: Atom,
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prefix: Option<DOMString>,
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document: &Document) -> Root<HTMLBaseElement> {
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let element = HTMLBaseElement::new_inherited(localName, prefix, document);
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Node::reflect_node(box element, document, HTMLBaseElementBinding::Wrap)
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}
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/// https://html.spec.whatwg.org/multipage/#frozen-base-url
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pub fn frozen_base_url(&self) -> Url {
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let href = self.upcast::<Element>().get_attribute(&ns!(), &atom!("href"))
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.expect("The frozen base url is only defined for base elements \
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that have a base url.");
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let document = document_from_node(self);
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let base = document.fallback_base_url();
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let parsed = base.join(&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 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 self.upcast::<Element>().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 VirtualMethods for HTMLBaseElement {
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fn super_type(&self) -> Option<&VirtualMethods> {
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Some(self.upcast::<HTMLElement>() as &VirtualMethods)
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}
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fn attribute_mutated(&self, attr: &Attr, mutation: AttributeMutation) {
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self.super_type().unwrap().attribute_mutated(attr, mutation);
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if *attr.local_name() == atom!("href") {
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document_from_node(self).refresh_base_element();
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}
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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, context: &UnbindContext) {
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self.super_type().unwrap().unbind_from_tree(context);
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self.bind_unbind(context.tree_in_doc);
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}
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}
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