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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::attr::Attr;
use dom::bindings::codegen::Bindings::HTMLOptGroupElementBinding;
use dom::bindings::codegen::Bindings::HTMLOptGroupElementBinding::HTMLOptGroupElementMethods;
use dom::bindings::inheritance::Castable;
use dom::bindings::js::Root;
use dom::document::Document;
use dom::element::{AttributeMutation, Element};
use dom::htmlelement::HTMLElement;
use dom::htmloptionelement::HTMLOptionElement;
use dom::node::Node;
use dom::virtualmethods::VirtualMethods;
use selectors::states::*;
use util::str::DOMString;
#[dom_struct]
pub struct HTMLOptGroupElement {
htmlelement: HTMLElement
}
impl HTMLOptGroupElement {
fn new_inherited(localName: DOMString,
prefix: Option<DOMString>,
document: &Document) -> HTMLOptGroupElement {
HTMLOptGroupElement {
htmlelement:
HTMLElement::new_inherited_with_state(IN_ENABLED_STATE,
localName, prefix, document)
}
}
#[allow(unrooted_must_root)]
pub fn new(localName: DOMString,
prefix: Option<DOMString>,
document: &Document) -> Root<HTMLOptGroupElement> {
let element = HTMLOptGroupElement::new_inherited(localName, prefix, document);
Node::reflect_node(box element, document, HTMLOptGroupElementBinding::Wrap)
}
}
impl HTMLOptGroupElementMethods for HTMLOptGroupElement {
// https://html.spec.whatwg.org/multipage/#dom-optgroup-disabled
make_bool_getter!(Disabled, "disabled");
// https://html.spec.whatwg.org/multipage/#dom-optgroup-disabled
make_bool_setter!(SetDisabled, "disabled");
}
impl VirtualMethods for HTMLOptGroupElement {
fn super_type(&self) -> Option<&VirtualMethods> {
Some(self.upcast::<HTMLElement>() as &VirtualMethods)
}
fn attribute_mutated(&self, attr: &Attr, mutation: AttributeMutation) {
self.super_type().unwrap().attribute_mutated(attr, mutation);
match attr.local_name() {
&atom!("disabled") => {
let disabled_state = match mutation {
AttributeMutation::Set(None) => true,
AttributeMutation::Set(Some(_)) => {
// Option group was already disabled.
return;
},
AttributeMutation::Removed => false,
};
let el = self.upcast::<Element>();
el.set_disabled_state(disabled_state);
el.set_enabled_state(!disabled_state);
let options = el.upcast::<Node>().children().filter(|child| {
child.is::<HTMLOptionElement>()
}).map(|child| Root::from_ref(child.downcast::<HTMLOptionElement>().unwrap()));
if disabled_state {
for option in options {
let el = option.upcast::<Element>();
el.set_disabled_state(true);
el.set_enabled_state(false);
}
} else {
for option in options {
let el = option.upcast::<Element>();
el.check_disabled_attribute();
}
}
},
_ => {},
}
}
}
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