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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 https://mozilla.org/MPL/2.0/. */
use std::cell::Cell;
use dom_struct::dom_struct;
use html5ever::{LocalName, Prefix};
use js::rust::HandleObject;
use crate::dom::bindings::codegen::Bindings::HTMLTitleElementBinding::HTMLTitleElementMethods;
use crate::dom::bindings::codegen::Bindings::NodeBinding::NodeMethods;
use crate::dom::bindings::inheritance::Castable;
use crate::dom::bindings::root::DomRoot;
use crate::dom::bindings::str::DOMString;
use crate::dom::document::Document;
use crate::dom::htmlelement::HTMLElement;
use crate::dom::node::{BindContext, ChildrenMutation, Node};
use crate::dom::virtualmethods::VirtualMethods;
use crate::script_runtime::CanGc;
#[dom_struct]
pub(crate) struct HTMLTitleElement {
htmlelement: HTMLElement,
popped: Cell<bool>,
}
impl HTMLTitleElement {
fn new_inherited(
local_name: LocalName,
prefix: Option<Prefix>,
document: &Document,
) -> HTMLTitleElement {
HTMLTitleElement {
htmlelement: HTMLElement::new_inherited(local_name, prefix, document),
popped: Cell::new(false),
}
}
#[cfg_attr(crown, allow(crown::unrooted_must_root))]
pub(crate) fn new(
local_name: LocalName,
prefix: Option<Prefix>,
document: &Document,
proto: Option<HandleObject>,
can_gc: CanGc,
) -> DomRoot<HTMLTitleElement> {
Node::reflect_node_with_proto(
Box::new(HTMLTitleElement::new_inherited(
local_name, prefix, document,
)),
document,
proto,
can_gc,
)
}
fn notify_title_changed(&self) {
let node = self.upcast::<Node>();
if node.is_in_a_document_tree() {
node.owner_doc().title_changed();
}
}
}
impl HTMLTitleElementMethods<crate::DomTypeHolder> for HTMLTitleElement {
// https://html.spec.whatwg.org/multipage/#dom-title-text
fn Text(&self) -> DOMString {
self.upcast::<Node>().child_text_content()
}
// https://html.spec.whatwg.org/multipage/#dom-title-text
fn SetText(&self, value: DOMString, can_gc: CanGc) {
self.upcast::<Node>().SetTextContent(Some(value), can_gc)
}
}
impl VirtualMethods for HTMLTitleElement {
fn super_type(&self) -> Option<&dyn VirtualMethods> {
Some(self.upcast::<HTMLElement>() as &dyn VirtualMethods)
}
fn children_changed(&self, mutation: &ChildrenMutation) {
if let Some(s) = self.super_type() {
s.children_changed(mutation);
}
// Notify of title changes only after the initial full parsing
// of the element.
if self.popped.get() {
self.notify_title_changed();
}
}
fn bind_to_tree(&self, context: &BindContext, can_gc: CanGc) {
if let Some(s) = self.super_type() {
s.bind_to_tree(context, can_gc);
}
let node = self.upcast::<Node>();
if context.tree_is_in_a_document_tree {
node.owner_doc().title_changed();
}
}
fn pop(&self) {
if let Some(s) = self.super_type() {
s.pop();
}
self.popped.set(true);
// Initial notification of title change, once the full text
// is available.
self.notify_title_changed();
}
}
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