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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 cssparser::Parser as CssParser;
use dom::bindings::codegen::Bindings::HTMLStyleElementBinding;
use dom::bindings::codegen::Bindings::NodeBinding::NodeMethods;
use dom::bindings::conversions::Castable;
use dom::bindings::js::Root;
use dom::document::Document;
use dom::element::Element;
use dom::htmlelement::HTMLElement;
use dom::node::{ChildrenMutation, Node, window_from_node};
use dom::virtualmethods::VirtualMethods;
use layout_interface::{LayoutChan, Msg};
use style::media_queries::parse_media_query_list;
use style::stylesheets::{Origin, Stylesheet};
use util::str::DOMString;
#[dom_struct]
pub struct HTMLStyleElement {
htmlelement: HTMLElement,
}
impl HTMLStyleElement {
fn new_inherited(localName: DOMString,
prefix: Option<DOMString>,
document: &Document) -> HTMLStyleElement {
HTMLStyleElement {
htmlelement: HTMLElement::new_inherited(localName, prefix, document)
}
}
#[allow(unrooted_must_root)]
pub fn new(localName: DOMString,
prefix: Option<DOMString>,
document: &Document) -> Root<HTMLStyleElement> {
let element = HTMLStyleElement::new_inherited(localName, prefix, document);
Node::reflect_node(box element, document, HTMLStyleElementBinding::Wrap)
}
pub fn parse_own_css(&self) {
let node = self.upcast::<Node>();
let element = self.upcast::<Element>();
assert!(node.is_in_doc());
let win = window_from_node(node);
let win = win.r();
let url = win.get_url();
let mq_attribute = element.get_attribute(&ns!(""), &atom!("media"));
let mq_str = match mq_attribute {
Some(a) => String::from(&**a.r().value()),
None => String::new(),
};
let mut css_parser = CssParser::new(&mq_str);
let media = parse_media_query_list(&mut css_parser);
let data = node.GetTextContent().expect("Element.textContent must be a string");
let sheet = Stylesheet::from_str(&data, url, Origin::Author);
let LayoutChan(ref layout_chan) = win.layout_chan();
layout_chan.send(Msg::AddStylesheet(sheet, media)).unwrap();
}
}
impl VirtualMethods for HTMLStyleElement {
fn super_type(&self) -> Option<&VirtualMethods> {
let htmlelement: &HTMLElement = self.upcast::<HTMLElement>();
Some(htmlelement as &VirtualMethods)
}
fn children_changed(&self, mutation: &ChildrenMutation) {
if let Some(ref s) = self.super_type() {
s.children_changed(mutation);
}
let node = self.upcast::<Node>();
if node.is_in_doc() {
self.parse_own_css();
}
}
fn bind_to_tree(&self, tree_in_doc: bool) {
if let Some(ref s) = self.super_type() {
s.bind_to_tree(tree_in_doc);
}
if tree_in_doc {
self.parse_own_css();
}
}
}
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