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 http://mozilla.org/MPL/2.0/. */

use dom::bindings::codegen::Bindings::HTMLHeadingElementBinding;
use dom::bindings::codegen::InheritTypes::HTMLHeadingElementDerived;
use dom::bindings::js::{JSRef, Temporary};
use dom::bindings::utils::{Reflectable, Reflector};
use dom::document::Document;
use dom::element::HTMLHeadingElementTypeId;
use dom::eventtarget::{EventTarget, NodeTargetTypeId};
use dom::htmlelement::HTMLElement;
use dom::node::{Node, ElementNodeTypeId};
use servo_util::str::DOMString;

#[jstraceable]
pub enum HeadingLevel {
    Heading1,
    Heading2,
    Heading3,
    Heading4,
    Heading5,
    Heading6,
}

#[jstraceable]
#[must_root]
pub struct HTMLHeadingElement {
    pub htmlelement: HTMLElement,
    pub level: HeadingLevel,
}

impl HTMLHeadingElementDerived for EventTarget {
    fn is_htmlheadingelement(&self) -> bool {
        self.type_id == NodeTargetTypeId(ElementNodeTypeId(HTMLHeadingElementTypeId))
    }
}

impl HTMLHeadingElement {
    fn new_inherited(localName: DOMString, prefix: Option<DOMString>, document: JSRef<Document>, level: HeadingLevel) -> HTMLHeadingElement {
        HTMLHeadingElement {
            htmlelement: HTMLElement::new_inherited(HTMLHeadingElementTypeId, localName, prefix, document),
            level: level,
        }
    }

    #[allow(unrooted_must_root)]
    pub fn new(localName: DOMString, prefix: Option<DOMString>, document: JSRef<Document>, level: HeadingLevel) -> Temporary<HTMLHeadingElement> {
        let element = HTMLHeadingElement::new_inherited(localName, prefix, document, level);
        Node::reflect_node(box element, document, HTMLHeadingElementBinding::Wrap)
    }
}

impl Reflectable for HTMLHeadingElement {
    fn reflector<'a>(&'a self) -> &'a Reflector {
        self.htmlelement.reflector()
    }
}