servo/components/script/dom/htmldetailselement.rs
2018-11-08 09:28:00 +01:00

90 lines
3 KiB
Rust

/* 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 crate::dom::attr::Attr;
use crate::dom::bindings::codegen::Bindings::HTMLDetailsElementBinding;
use crate::dom::bindings::codegen::Bindings::HTMLDetailsElementBinding::HTMLDetailsElementMethods;
use crate::dom::bindings::inheritance::Castable;
use crate::dom::bindings::refcounted::Trusted;
use crate::dom::bindings::root::DomRoot;
use crate::dom::document::Document;
use crate::dom::element::AttributeMutation;
use crate::dom::eventtarget::EventTarget;
use crate::dom::htmlelement::HTMLElement;
use crate::dom::node::{window_from_node, Node};
use crate::dom::virtualmethods::VirtualMethods;
use crate::task_source::TaskSource;
use dom_struct::dom_struct;
use html5ever::{LocalName, Prefix};
use std::cell::Cell;
#[dom_struct]
pub struct HTMLDetailsElement {
htmlelement: HTMLElement,
toggle_counter: Cell<u32>,
}
impl HTMLDetailsElement {
fn new_inherited(
local_name: LocalName,
prefix: Option<Prefix>,
document: &Document,
) -> HTMLDetailsElement {
HTMLDetailsElement {
htmlelement: HTMLElement::new_inherited(local_name, prefix, document),
toggle_counter: Cell::new(0),
}
}
#[allow(unrooted_must_root)]
pub fn new(
local_name: LocalName,
prefix: Option<Prefix>,
document: &Document,
) -> DomRoot<HTMLDetailsElement> {
Node::reflect_node(
Box::new(HTMLDetailsElement::new_inherited(
local_name, prefix, document,
)),
document,
HTMLDetailsElementBinding::Wrap,
)
}
}
impl HTMLDetailsElementMethods for HTMLDetailsElement {
// https://html.spec.whatwg.org/multipage/#dom-details-open
make_bool_getter!(Open, "open");
// https://html.spec.whatwg.org/multipage/#dom-details-open
make_bool_setter!(SetOpen, "open");
}
impl VirtualMethods for HTMLDetailsElement {
fn super_type(&self) -> Option<&dyn VirtualMethods> {
Some(self.upcast::<HTMLElement>() as &dyn VirtualMethods)
}
fn attribute_mutated(&self, attr: &Attr, mutation: AttributeMutation) {
self.super_type().unwrap().attribute_mutated(attr, mutation);
if attr.local_name() == &local_name!("open") {
let counter = self.toggle_counter.get() + 1;
self.toggle_counter.set(counter);
let window = window_from_node(self);
let this = Trusted::new(self);
// FIXME(nox): Why are errors silenced here?
let _ = window.dom_manipulation_task_source().queue(
task!(details_notification_task_steps: move || {
let this = this.root();
if counter == this.toggle_counter.get() {
this.upcast::<EventTarget>().fire_event(atom!("toggle"));
}
}),
window.upcast(),
);
}
}
}