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https://github.com/servo/servo.git
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aa15dc269f
http://www.robohornet.org gives a score of 101.36 on master, and 102.68 with this PR. The latter is slightly better, but probably within noise level. So it looks like this PR does not affect DOM performance. This is expected since `Box::new` is defined as: ```rust impl<T> Box<T> { #[inline(always)] pub fn new(x: T) -> Box<T> { box x } } ``` With inlining, it should compile to the same as box syntax.
206 lines
7.8 KiB
Rust
206 lines
7.8 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 cssparser::RGBA;
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use dom::attr::Attr;
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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::inheritance::Castable;
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use dom::bindings::root::{LayoutDom, DomRoot};
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use dom::bindings::str::DOMString;
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use dom::document::Document;
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use dom::element::{AttributeMutation, Element, RawLayoutElementHelpers};
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use dom::eventtarget::EventTarget;
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use dom::globalscope::GlobalScope;
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use dom::htmlelement::HTMLElement;
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use dom::node::{Node, document_from_node, window_from_node};
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use dom::virtualmethods::VirtualMethods;
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use dom_struct::dom_struct;
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use html5ever::{LocalName, Prefix};
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use script_traits::ScriptMsg;
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use servo_url::ServoUrl;
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use style::attr::AttrValue;
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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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}
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impl HTMLBodyElement {
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fn new_inherited(local_name: LocalName, prefix: Option<Prefix>, document: &Document)
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-> HTMLBodyElement {
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HTMLBodyElement {
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htmlelement: HTMLElement::new_inherited(local_name, prefix, document),
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}
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}
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#[allow(unrooted_must_root)]
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pub fn new(local_name: LocalName, prefix: Option<Prefix>, document: &Document)
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-> DomRoot<HTMLBodyElement> {
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Node::reflect_node(Box::new(HTMLBodyElement::new_inherited(local_name, prefix, document)),
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document,
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HTMLBodyElementBinding::Wrap)
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}
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/// https://drafts.csswg.org/cssom-view/#the-html-body-element
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pub fn is_the_html_body_element(&self) -> bool {
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let self_node = self.upcast::<Node>();
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let root_elem = self.upcast::<Element>().root_element();
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let root_node = root_elem.upcast::<Node>();
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root_node.is_parent_of(self_node) &&
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self_node.preceding_siblings().all(|n| !n.is::<HTMLBodyElement>())
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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_legacy_color_setter!(SetBgColor, "bgcolor");
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// https://html.spec.whatwg.org/multipage/#dom-body-text
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make_getter!(Text, "text");
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// https://html.spec.whatwg.org/multipage/#dom-body-text
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make_legacy_color_setter!(SetText, "text");
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// https://html.spec.whatwg.org/multipage/#dom-body-background
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make_getter!(Background, "background");
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// https://html.spec.whatwg.org/multipage/#dom-body-background
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fn SetBackground(&self, input: DOMString) {
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let value = AttrValue::from_resolved_url(
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&document_from_node(self).base_url(),
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input.into(),
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);
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self.upcast::<Element>().set_attribute(&local_name!("background"), value);
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}
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// https://html.spec.whatwg.org/multipage/#windoweventhandlers
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window_event_handlers!(ForwardToWindow);
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}
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pub trait HTMLBodyElementLayoutHelpers {
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fn get_background_color(&self) -> Option<RGBA>;
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fn get_color(&self) -> Option<RGBA>;
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fn get_background(&self) -> Option<ServoUrl>;
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}
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impl HTMLBodyElementLayoutHelpers for LayoutDom<HTMLBodyElement> {
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#[allow(unsafe_code)]
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fn get_background_color(&self) -> Option<RGBA> {
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unsafe {
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(*self.upcast::<Element>().unsafe_get())
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.get_attr_for_layout(&ns!(), &local_name!("bgcolor"))
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.and_then(AttrValue::as_color)
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.cloned()
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}
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}
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#[allow(unsafe_code)]
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fn get_color(&self) -> Option<RGBA> {
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unsafe {
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(*self.upcast::<Element>().unsafe_get())
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.get_attr_for_layout(&ns!(), &local_name!("text"))
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.and_then(AttrValue::as_color)
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.cloned()
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}
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}
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#[allow(unsafe_code)]
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fn get_background(&self) -> Option<ServoUrl> {
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unsafe {
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(*self.upcast::<Element>().unsafe_get())
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.get_attr_for_layout(&ns!(), &local_name!("background"))
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.and_then(AttrValue::as_resolved_url)
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.cloned()
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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(&self) -> Option<&VirtualMethods> {
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Some(self.upcast::<HTMLElement>() as &VirtualMethods)
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}
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fn attribute_affects_presentational_hints(&self, attr: &Attr) -> bool {
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if attr.local_name() == &local_name!("bgcolor") {
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return true;
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}
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self.super_type().unwrap().attribute_affects_presentational_hints(attr)
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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.Document();
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document.set_reflow_timeout(time::precise_time_ns() + INITIAL_REFLOW_DELAY);
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let event = ScriptMsg::HeadParsed;
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window.upcast::<GlobalScope>().script_to_constellation_chan().send(event).unwrap();
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}
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fn parse_plain_attribute(&self, name: &LocalName, value: DOMString) -> AttrValue {
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match *name {
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local_name!("bgcolor") |
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local_name!("text") => AttrValue::from_legacy_color(value.into()),
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local_name!("background") => {
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AttrValue::from_resolved_url(
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&document_from_node(self).base_url(),
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value.into(),
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)
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},
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_ => self.super_type().unwrap().parse_plain_attribute(name, value),
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}
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}
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fn attribute_mutated(&self, attr: &Attr, mutation: AttributeMutation) {
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let do_super_mutate = match (attr.local_name(), mutation) {
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(name, AttributeMutation::Set(_)) if name.starts_with("on") => {
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let window = window_from_node(self);
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// https://html.spec.whatwg.org/multipage/
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// #event-handlers-on-elements,-document-objects,-and-window-objects:event-handlers-3
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match name {
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&local_name!("onfocus") | &local_name!("onload") | &local_name!("onscroll") |
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&local_name!("onafterprint") | &local_name!("onbeforeprint") |
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&local_name!("onbeforeunload") | &local_name!("onhashchange") |
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&local_name!("onlanguagechange") | &local_name!("onmessage") |
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&local_name!("onoffline") | &local_name!("ononline") |
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&local_name!("onpagehide") | &local_name!("onpageshow") |
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&local_name!("onpopstate") | &local_name!("onstorage") |
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&local_name!("onresize") | &local_name!("onunload") | &local_name!("onerror")
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=> {
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let evtarget = window.upcast::<EventTarget>(); // forwarded event
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let source_line = 1; //TODO(#9604) obtain current JS execution line
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evtarget.set_event_handler_uncompiled(window.get_url(),
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source_line,
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&name[2..],
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DOMString::from((**attr.value()).to_owned()));
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false
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}
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_ => true, // HTMLElement::attribute_mutated will take care of this.
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}
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},
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_ => true,
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};
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if do_super_mutate {
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self.super_type().unwrap().attribute_mutated(attr, mutation);
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}
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}
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}
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