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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::attr::AttrMethods;
use dom::bindings::codegen::Bindings::HTMLObjectElementBinding;
use dom::bindings::codegen::InheritTypes::HTMLObjectElementDerived;
use dom::bindings::codegen::InheritTypes::{ElementCast, HTMLElementCast};
use dom::bindings::js::{JSRef, Temporary};
use dom::document::Document;
use dom::element::{Element, HTMLObjectElementTypeId};
use dom::element::AttributeHandlers;
use dom::eventtarget::{EventTarget, NodeTargetTypeId};
use dom::htmlelement::HTMLElement;
use dom::node::{Node, ElementNodeTypeId, NodeHelpers, window_from_node};
use dom::validitystate::ValidityState;
use dom::virtualmethods::VirtualMethods;
use servo_util::str::DOMString;
use servo_net::image_cache_task;
use servo_net::image_cache_task::ImageCacheTask;
use servo_util::url::parse_url;
use servo_util::namespace::Null;
use servo_util::url::is_image_data;
use url::Url;
#[deriving(Encodable)]
pub struct HTMLObjectElement {
pub htmlelement: HTMLElement,
}
impl HTMLObjectElementDerived for EventTarget {
fn is_htmlobjectelement(&self) -> bool {
self.type_id == NodeTargetTypeId(ElementNodeTypeId(HTMLObjectElementTypeId))
}
}
impl HTMLObjectElement {
pub fn new_inherited(localName: DOMString, document: &JSRef<Document>) -> HTMLObjectElement {
HTMLObjectElement {
htmlelement: HTMLElement::new_inherited(HTMLObjectElementTypeId, localName, document),
}
}
pub fn new(localName: DOMString, document: &JSRef<Document>) -> Temporary<HTMLObjectElement> {
let element = HTMLObjectElement::new_inherited(localName, document);
Node::reflect_node(box element, document, HTMLObjectElementBinding::Wrap)
}
}
trait ProcessDataURL {
fn process_data_url(&self, image_cache: ImageCacheTask, url: Option<Url>);
}
impl<'a> ProcessDataURL for JSRef<'a, HTMLObjectElement> {
// Makes the local `data` member match the status of the `data` attribute and starts
/// prefetching the image. This method must be called after `data` is changed.
fn process_data_url(&self, image_cache: ImageCacheTask, url: Option<Url>) {
let elem: &JSRef<Element> = ElementCast::from_ref(self);
// TODO: support other values
match (elem.get_attribute(Null, "type").map(|x| x.root().Value()),
elem.get_attribute(Null, "data").map(|x| x.root().Value())) {
(None, Some(uri)) => {
if is_image_data(uri.as_slice()) {
let data_url = parse_url(uri.as_slice(), url);
// Issue #84
image_cache.send(image_cache_task::Prefetch(data_url));
}
}
_ => { }
}
}
}
pub trait HTMLObjectElementMethods {
fn Validity(&self) -> Temporary<ValidityState>;
}
impl<'a> HTMLObjectElementMethods for JSRef<'a, HTMLObjectElement> {
fn Validity(&self) -> Temporary<ValidityState> {
let window = window_from_node(self).root();
ValidityState::new(&*window)
}
}
impl<'a> VirtualMethods for JSRef<'a, HTMLObjectElement> {
fn super_type<'a>(&'a mut self) -> Option<&'a mut VirtualMethods:> {
let htmlelement: &mut JSRef<HTMLElement> = HTMLElementCast::from_mut_ref(self);
Some(htmlelement as &mut VirtualMethods:)
}
fn after_set_attr(&mut self, name: DOMString, value: DOMString) {
match self.super_type() {
Some(ref mut s) => s.after_set_attr(name.clone(), value),
_ => (),
}
if "data" == name.as_slice() {
let window = window_from_node(self).root();
let url = Some(window.deref().get_url());
self.process_data_url(window.deref().image_cache_task.clone(), url);
}
}
}
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