servo/src/components/script/dom/htmlelement.rs
2014-06-02 19:48:42 +02:00

87 lines
3.1 KiB
Rust

/* 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::EventHandlerBinding::EventHandlerNonNull;
use dom::bindings::codegen::Bindings::HTMLElementBinding;
use dom::bindings::codegen::InheritTypes::{ElementCast, HTMLFrameSetElementDerived};
use dom::bindings::codegen::InheritTypes::EventTargetCast;
use dom::bindings::codegen::InheritTypes::{HTMLElementDerived, HTMLBodyElementDerived};
use dom::bindings::js::{JSRef, Temporary};
use dom::document::Document;
use dom::element::{Element, ElementTypeId, HTMLElementTypeId};
use dom::eventtarget::{EventTarget, NodeTargetTypeId};
use dom::node::{Node, ElementNodeTypeId, window_from_node};
use dom::virtualmethods::VirtualMethods;
use dom::window::WindowMethods;
use servo_util::namespace;
use servo_util::str::DOMString;
#[deriving(Encodable)]
pub struct HTMLElement {
pub element: Element
}
impl HTMLElementDerived for EventTarget {
fn is_htmlelement(&self) -> bool {
match self.type_id {
NodeTargetTypeId(ElementNodeTypeId(ElementTypeId)) => false,
NodeTargetTypeId(ElementNodeTypeId(_)) => true,
_ => false
}
}
}
impl HTMLElement {
pub fn new_inherited(type_id: ElementTypeId, tag_name: DOMString, document: &JSRef<Document>) -> HTMLElement {
HTMLElement {
element: Element::new_inherited(type_id, tag_name, namespace::HTML, None, document)
}
}
pub fn new(localName: DOMString, document: &JSRef<Document>) -> Temporary<HTMLElement> {
let element = HTMLElement::new_inherited(HTMLElementTypeId, localName, document);
Node::reflect_node(box element, document, HTMLElementBinding::Wrap)
}
}
trait PrivateHTMLElementHelpers {
fn is_body_or_frameset(&self) -> bool;
}
impl<'a> PrivateHTMLElementHelpers for JSRef<'a, HTMLElement> {
fn is_body_or_frameset(&self) -> bool {
let eventtarget: &JSRef<EventTarget> = EventTargetCast::from_ref(self);
eventtarget.is_htmlbodyelement() || eventtarget.is_htmlframesetelement()
}
}
pub trait HTMLElementMethods {
fn GetOnload(&self) -> Option<EventHandlerNonNull>;
fn SetOnload(&mut self, listener: Option<EventHandlerNonNull>);
}
impl<'a> HTMLElementMethods for JSRef<'a, HTMLElement> {
fn GetOnload(&self) -> Option<EventHandlerNonNull> {
if self.is_body_or_frameset() {
let win = window_from_node(self).root();
win.deref().GetOnload()
} else {
None
}
}
fn SetOnload(&mut self, listener: Option<EventHandlerNonNull>) {
if self.is_body_or_frameset() {
let mut win = window_from_node(self).root();
win.SetOnload(listener)
}
}
}
impl<'a> VirtualMethods for JSRef<'a, HTMLElement> {
fn super_type<'a>(&'a mut self) -> Option<&'a mut VirtualMethods:> {
let element: &mut JSRef<Element> = ElementCast::from_mut_ref(self);
Some(element as &mut VirtualMethods:)
}
}