servo-script 0.2.0

A component of the servo web-engine.
Documentation 
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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 dom_struct::dom_struct;
use html5ever::{LocalName, Prefix};
use js::context::JSContext;
use js::rust::HandleObject;

use crate::dom::bindings::inheritance::Castable;
use crate::dom::bindings::root::DomRoot;
use crate::dom::document::Document;
use crate::dom::html::htmlelement::HTMLElement;
use crate::dom::node::{BindContext, Node};
use crate::dom::userscripts::load_script;
use crate::dom::virtualmethods::VirtualMethods;

#[dom_struct]
pub(crate) struct HTMLHeadElement {
    htmlelement: HTMLElement,
}

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

    pub(crate) fn new(
        cx: &mut js::context::JSContext,
        local_name: LocalName,
        prefix: Option<Prefix>,
        document: &Document,
        proto: Option<HandleObject>,
    ) -> DomRoot<HTMLHeadElement> {
        let n = Node::reflect_node_with_proto(
            cx,
            Box::new(HTMLHeadElement::new_inherited(local_name, prefix, document)),
            document,
            proto,
        );

        n.upcast::<Node>().set_weird_parser_insertion_mode();
        n
    }
}

impl VirtualMethods for HTMLHeadElement {
    fn super_type(&self) -> Option<&dyn VirtualMethods> {
        Some(self.upcast::<HTMLElement>() as &dyn VirtualMethods)
    }
    fn bind_to_tree(&self, cx: &mut JSContext, context: &BindContext) {
        if let Some(s) = self.super_type() {
            s.bind_to_tree(cx, context);
        }
        load_script(self);
    }
}