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// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
use dom::bindings::codegen::Bindings::HTMLLegendElementBinding;
use dom::bindings::codegen::Bindings::HTMLLegendElementBinding::HTMLLegendElementMethods;
use dom::bindings::codegen::Bindings::NodeBinding::NodeMethods;
use dom::bindings::inheritance::Castable;
use dom::bindings::root::{DomRoot, MutNullableDom};
use dom::document::Document;
use dom::element::Element;
use dom::htmlelement::HTMLElement;
use dom::htmlfieldsetelement::HTMLFieldSetElement;
use dom::htmlformelement::{HTMLFormElement, FormControl};
use dom::node::{Node, UnbindContext};
use dom::virtualmethods::VirtualMethods;
use dom_struct::dom_struct;
use html5ever::{LocalName, Prefix};
#[dom_struct]
pub struct HTMLLegendElement {
htmlelement: HTMLElement,
form_owner: MutNullableDom<HTMLFormElement>,
}
impl HTMLLegendElement {
fn new_inherited(local_name: LocalName,
prefix: Option<Prefix>,
document: &Document)
-> HTMLLegendElement {
HTMLLegendElement {
htmlelement: HTMLElement::new_inherited(local_name, prefix, document),
form_owner: Default::default(),
}
}
#[allow(unrooted_must_root)]
pub fn new(local_name: LocalName,
prefix: Option<Prefix>,
document: &Document)
-> DomRoot<HTMLLegendElement> {
Node::reflect_node(Box::new(HTMLLegendElement::new_inherited(local_name, prefix, document)),
document,
HTMLLegendElementBinding::Wrap)
}
}
impl VirtualMethods for HTMLLegendElement {
fn super_type(&self) -> Option<&VirtualMethods> {
Some(self.upcast::<HTMLElement>() as &VirtualMethods)
}
fn bind_to_tree(&self, tree_in_doc: bool) {
if let Some(ref s) = self.super_type() {
s.bind_to_tree(tree_in_doc);
}
self.upcast::<Element>().check_ancestors_disabled_state_for_form_control();
}
fn unbind_from_tree(&self, context: &UnbindContext) {
self.super_type().unwrap().unbind_from_tree(context);
let node = self.upcast::<Node>();
let el = self.upcast::<Element>();
if node.ancestors().any(|ancestor| ancestor.is::<HTMLFieldSetElement>()) {
el.check_ancestors_disabled_state_for_form_control();
} else {
el.check_disabled_attribute();
}
}
}
impl HTMLLegendElementMethods for HTMLLegendElement {
// https://html.spec.whatwg.org/multipage/#dom-legend-form
fn GetForm(&self) -> Option<DomRoot<HTMLFormElement>> {
let parent = match self.upcast::<Node>().GetParentElement() {
Some(parent) => parent,
None => return None,
};
if parent.is::<HTMLFieldSetElement>() {
return self.form_owner();
}
None
}
}
impl FormControl for HTMLLegendElement {
fn form_owner(&self) -> Option<DomRoot<HTMLFormElement>> {
self.form_owner.get()
}
fn set_form_owner(&self, form: Option<&HTMLFormElement>) {
self.form_owner.set(form);
}
fn to_element<'a>(&'a self) -> &'a Element {
self.upcast::<Element>()
}
}
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