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eaf90c0b1c
Introduce VirtualMethods::attribute_mutated() <!-- Reviewable:start --> [<img src="https://reviewable.io/review_button.png" height=40 alt="Review on Reviewable"/>](https://reviewable.io/reviews/servo/servo/7452) <!-- Reviewable:end -->
165 lines
6.4 KiB
Rust
165 lines
6.4 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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use dom::attr::Attr;
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use dom::bindings::cell::DOMRefCell;
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use dom::bindings::codegen::Bindings::EventHandlerBinding::EventHandlerNonNull;
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use dom::bindings::codegen::Bindings::HTMLBodyElementBinding::{self, HTMLBodyElementMethods};
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use dom::bindings::codegen::Bindings::WindowBinding::WindowMethods;
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use dom::bindings::codegen::InheritTypes::{EventTargetCast};
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use dom::bindings::codegen::InheritTypes::{HTMLBodyElementDerived, HTMLElementCast};
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use dom::bindings::js::Root;
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use dom::bindings::utils::Reflectable;
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use dom::document::Document;
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use dom::element::{AttributeMutation, ElementTypeId};
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use dom::eventtarget::{EventTarget, EventTargetTypeId};
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use dom::htmlelement::{HTMLElement, HTMLElementTypeId};
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use dom::node::{Node, NodeTypeId, window_from_node, document_from_node};
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use dom::virtualmethods::VirtualMethods;
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use msg::constellation_msg::ConstellationChan;
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use msg::constellation_msg::Msg as ConstellationMsg;
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use cssparser::RGBA;
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use url::{Url, UrlParser};
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use util::str::{self, DOMString};
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use std::borrow::ToOwned;
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use std::cell::Cell;
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use std::rc::Rc;
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use time;
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/// How long we should wait before performing the initial reflow after `<body>` is parsed, in
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/// nanoseconds.
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const INITIAL_REFLOW_DELAY: u64 = 200_000_000;
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#[dom_struct]
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pub struct HTMLBodyElement {
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htmlelement: HTMLElement,
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background_color: Cell<Option<RGBA>>,
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background: DOMRefCell<Option<Url>>
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}
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impl HTMLBodyElementDerived for EventTarget {
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fn is_htmlbodyelement(&self) -> bool {
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*self.type_id() == EventTargetTypeId::Node(NodeTypeId::Element(ElementTypeId::HTMLElement(
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HTMLElementTypeId::HTMLBodyElement)))
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}
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}
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impl HTMLBodyElement {
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fn new_inherited(localName: DOMString, prefix: Option<DOMString>, document: &Document)
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-> HTMLBodyElement {
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HTMLBodyElement {
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htmlelement: HTMLElement::new_inherited(HTMLElementTypeId::HTMLBodyElement,
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localName,
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prefix,
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document),
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background_color: Cell::new(None),
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background: DOMRefCell::new(None)
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}
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}
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#[allow(unrooted_must_root)]
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pub fn new(localName: DOMString, prefix: Option<DOMString>, document: &Document)
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-> Root<HTMLBodyElement> {
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let element = HTMLBodyElement::new_inherited(localName, prefix, document);
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Node::reflect_node(box element, document, HTMLBodyElementBinding::Wrap)
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}
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}
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impl HTMLBodyElementMethods for HTMLBodyElement {
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// https://html.spec.whatwg.org/multipage#dom-body-bgcolor
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make_getter!(BgColor, "bgcolor");
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// https://html.spec.whatwg.org/multipage#dom-body-bgcolor
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make_setter!(SetBgColor, "bgcolor");
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// https://html.spec.whatwg.org/multipage/#the-body-element
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fn GetOnunload(&self) -> Option<Rc<EventHandlerNonNull>> {
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let win = window_from_node(self);
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win.r().GetOnunload()
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}
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// https://html.spec.whatwg.org/multipage/#the-body-element
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fn SetOnunload(&self, listener: Option<Rc<EventHandlerNonNull>>) {
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let win = window_from_node(self);
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win.r().SetOnunload(listener)
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}
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}
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impl HTMLBodyElement {
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pub fn get_background_color(&self) -> Option<RGBA> {
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self.background_color.get()
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}
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#[allow(unsafe_code)]
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pub fn get_background(&self) -> Option<Url> {
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unsafe {
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self.background.borrow_for_layout().clone()
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}
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}
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}
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impl VirtualMethods for HTMLBodyElement {
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fn super_type<'b>(&'b self) -> Option<&'b VirtualMethods> {
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let element: &HTMLElement = HTMLElementCast::from_ref(self);
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Some(element as &VirtualMethods)
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}
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fn bind_to_tree(&self, tree_in_doc: bool) {
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if let Some(ref s) = self.super_type() {
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s.bind_to_tree(tree_in_doc);
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}
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if !tree_in_doc {
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return
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}
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let window = window_from_node(self);
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let document = window.r().Document();
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document.r().set_reflow_timeout(time::precise_time_ns() + INITIAL_REFLOW_DELAY);
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let ConstellationChan(ref chan) = window.r().constellation_chan();
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let event = ConstellationMsg::HeadParsed;
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chan.send(event).unwrap();
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}
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fn attribute_mutated(&self, attr: &Attr, mutation: AttributeMutation) {
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self.super_type().unwrap().attribute_mutated(attr, mutation);
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match (attr.local_name(), mutation) {
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(&atom!(bgcolor), _) => {
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self.background_color.set(mutation.new_value(attr).and_then(|value| {
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str::parse_legacy_color(&value).ok()
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}));
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},
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(&atom!(background), _) => {
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*self.background.borrow_mut() = mutation.new_value(attr).and_then(|value| {
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let base = document_from_node(self).url();
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UrlParser::new().base_url(&base).parse(&value).ok()
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});
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},
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(name, AttributeMutation::Set(_)) if name.starts_with("on") => {
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static FORWARDED_EVENTS: &'static [&'static str] =
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&["onfocus", "onload", "onscroll", "onafterprint", "onbeforeprint",
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"onbeforeunload", "onhashchange", "onlanguagechange", "onmessage",
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"onoffline", "ononline", "onpagehide", "onpageshow", "onpopstate",
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"onstorage", "onresize", "onunload", "onerror"];
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let window = window_from_node(self);
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let (cx, url, reflector) = (window.get_cx(),
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window.get_url(),
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window.reflector().get_jsobject());
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let evtarget =
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if FORWARDED_EVENTS.iter().any(|&event| &**name == event) {
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EventTargetCast::from_ref(window.r())
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} else {
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EventTargetCast::from_ref(self)
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};
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evtarget.set_event_handler_uncompiled(cx, url, reflector,
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&name[2..],
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(**attr.value()).to_owned());
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},
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_ => {}
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}
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}
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}
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