servo/components/script/dom/htmlheadingelement.rs

/* 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 dom_struct::dom_struct;
use html5ever::{LocalName, Prefix};
use js::rust::HandleObject;

use crate::dom::bindings::root::DomRoot;
use crate::dom::document::Document;
use crate::dom::htmlelement::HTMLElement;
use crate::dom::node::Node;
use crate::script_runtime::CanGc;

#[derive(JSTraceable, MallocSizeOf)]
pub(crate) enum HeadingLevel {
    Heading1,
    Heading2,
    Heading3,
    Heading4,
    Heading5,
    Heading6,
}

#[dom_struct]
pub(crate) struct HTMLHeadingElement {
    htmlelement: HTMLElement,
    level: HeadingLevel,
}

impl HTMLHeadingElement {
    fn new_inherited(
        local_name: LocalName,
        prefix: Option<Prefix>,
        document: &Document,
        level: HeadingLevel,
    ) -> HTMLHeadingElement {
        HTMLHeadingElement {
            htmlelement: HTMLElement::new_inherited(local_name, prefix, document),
            level,
        }
    }

    #[cfg_attr(crown, allow(crown::unrooted_must_root))]
    pub(crate) fn new(
        local_name: LocalName,
        prefix: Option<Prefix>,
        document: &Document,
        proto: Option<HandleObject>,
        level: HeadingLevel,
        can_gc: CanGc,
    ) -> DomRoot<HTMLHeadingElement> {
        Node::reflect_node_with_proto(
            Box::new(HTMLHeadingElement::new_inherited(
                local_name, prefix, document, level,
            )),
            document,
            proto,
            can_gc,
        )
    }
}