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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 http://mozilla.org/MPL/2.0/. */
use dom::bindings::codegen::Bindings::HTMLStyleElementBinding;
use dom::bindings::codegen::Bindings::NodeBinding::NodeMethods;
use dom::bindings::codegen::InheritTypes::{HTMLElementCast, HTMLStyleElementDerived, NodeCast};
use dom::bindings::js::{JSRef, Temporary};
use dom::bindings::utils::{Reflectable, Reflector};
use dom::document::Document;
use dom::element::HTMLStyleElementTypeId;
use dom::eventtarget::{EventTarget, NodeTargetTypeId};
use dom::htmlelement::HTMLElement;
use dom::node::{Node, NodeHelpers, ElementNodeTypeId, window_from_node};
use dom::virtualmethods::VirtualMethods;
use layout_interface::{AddStylesheetMsg, LayoutChan};
use servo_util::str::DOMString;
use style::Stylesheet;
#[dom_struct]
pub struct HTMLStyleElement {
htmlelement: HTMLElement,
}
impl HTMLStyleElementDerived for EventTarget {
fn is_htmlstyleelement(&self) -> bool {
*self.type_id() == NodeTargetTypeId(ElementNodeTypeId(HTMLStyleElementTypeId))
}
}
impl HTMLStyleElement {
fn new_inherited(localName: DOMString, prefix: Option<DOMString>, document: JSRef<Document>) -> HTMLStyleElement {
HTMLStyleElement {
htmlelement: HTMLElement::new_inherited(HTMLStyleElementTypeId, localName, prefix, document)
}
}
#[allow(unrooted_must_root)]
pub fn new(localName: DOMString, prefix: Option<DOMString>, document: JSRef<Document>) -> Temporary<HTMLStyleElement> {
let element = HTMLStyleElement::new_inherited(localName, prefix, document);
Node::reflect_node(box element, document, HTMLStyleElementBinding::Wrap)
}
}
pub trait StyleElementHelpers {
fn parse_own_css(self);
}
impl<'a> StyleElementHelpers for JSRef<'a, HTMLStyleElement> {
fn parse_own_css(self) {
let node: JSRef<Node> = NodeCast::from_ref(self);
assert!(node.is_in_doc());
let win = window_from_node(node).root();
let url = win.page().get_url();
let data = node.GetTextContent().expect("Element.textContent must be a string");
let sheet = Stylesheet::from_str(data.as_slice(), url);
let LayoutChan(ref layout_chan) = win.page().layout_chan;
layout_chan.send(AddStylesheetMsg(sheet));
}
}
impl<'a> VirtualMethods for JSRef<'a, HTMLStyleElement> {
fn super_type<'a>(&'a self) -> Option<&'a VirtualMethods> {
let htmlelement: &JSRef<HTMLElement> = HTMLElementCast::from_borrowed_ref(self);
Some(htmlelement as &VirtualMethods)
}
fn child_inserted(&self, child: JSRef<Node>) {
match self.super_type() {
Some(ref s) => s.child_inserted(child),
_ => (),
}
let node: JSRef<Node> = NodeCast::from_ref(*self);
if node.is_in_doc() {
self.parse_own_css();
}
}
fn bind_to_tree(&self, tree_in_doc: bool) {
match self.super_type() {
Some(ref s) => s.bind_to_tree(tree_in_doc),
_ => ()
}
if tree_in_doc {
self.parse_own_css();
}
}
}
impl Reflectable for HTMLStyleElement {
fn reflector<'a>(&'a self) -> &'a Reflector {
self.htmlelement.reflector()
}
}
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