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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.
116 lines
4.1 KiB
Rust
116 lines
4.1 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::abstractworker::SimpleWorkerErrorHandler;
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use dom::bindings::cell::DomRefCell;
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use dom::bindings::codegen::Bindings::ServiceWorkerBinding::{ServiceWorkerMethods, ServiceWorkerState, Wrap};
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use dom::bindings::error::{ErrorResult, Error};
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use dom::bindings::inheritance::Castable;
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use dom::bindings::refcounted::Trusted;
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use dom::bindings::reflector::{DomObject, reflect_dom_object};
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use dom::bindings::root::DomRoot;
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use dom::bindings::str::USVString;
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use dom::bindings::structuredclone::StructuredCloneData;
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use dom::eventtarget::EventTarget;
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use dom::globalscope::GlobalScope;
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use dom_struct::dom_struct;
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use js::jsapi::{HandleValue, JSContext};
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use script_traits::{ScriptMsg, DOMMessage};
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use servo_url::ServoUrl;
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use std::cell::Cell;
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use task::TaskOnce;
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pub type TrustedServiceWorkerAddress = Trusted<ServiceWorker>;
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#[dom_struct]
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pub struct ServiceWorker {
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eventtarget: EventTarget,
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script_url: DomRefCell<String>,
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scope_url: ServoUrl,
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state: Cell<ServiceWorkerState>,
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skip_waiting: Cell<bool>
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}
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impl ServiceWorker {
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fn new_inherited(script_url: &str,
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skip_waiting: bool,
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scope_url: ServoUrl) -> ServiceWorker {
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ServiceWorker {
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eventtarget: EventTarget::new_inherited(),
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script_url: DomRefCell::new(String::from(script_url)),
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state: Cell::new(ServiceWorkerState::Installing),
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scope_url: scope_url,
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skip_waiting: Cell::new(skip_waiting)
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}
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}
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pub fn install_serviceworker(global: &GlobalScope,
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script_url: ServoUrl,
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scope_url: ServoUrl,
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skip_waiting: bool) -> DomRoot<ServiceWorker> {
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reflect_dom_object(
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Box::new(ServiceWorker::new_inherited(
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script_url.as_str(), skip_waiting, scope_url
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)),
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global,
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Wrap
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)
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}
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pub fn dispatch_simple_error(address: TrustedServiceWorkerAddress) {
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let service_worker = address.root();
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service_worker.upcast().fire_event(atom!("error"));
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}
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pub fn set_transition_state(&self, state: ServiceWorkerState) {
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self.state.set(state);
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self.upcast::<EventTarget>().fire_event(atom!("statechange"));
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}
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pub fn get_script_url(&self) -> ServoUrl {
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ServoUrl::parse(&self.script_url.borrow().clone()).unwrap()
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}
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}
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impl ServiceWorkerMethods for ServiceWorker {
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// https://w3c.github.io/ServiceWorker/#service-worker-state-attribute
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fn State(&self) -> ServiceWorkerState {
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self.state.get()
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}
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// https://w3c.github.io/ServiceWorker/#service-worker-url-attribute
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fn ScriptURL(&self) -> USVString {
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USVString(self.script_url.borrow().clone())
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}
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#[allow(unsafe_code)]
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// https://w3c.github.io/ServiceWorker/#service-worker-postmessage
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unsafe fn PostMessage(&self, cx: *mut JSContext, message: HandleValue) -> ErrorResult {
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// Step 1
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if let ServiceWorkerState::Redundant = self.state.get() {
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return Err(Error::InvalidState);
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}
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// Step 7
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let data = StructuredCloneData::write(cx, message)?;
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let msg_vec = DOMMessage(data.move_to_arraybuffer());
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let _ =
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self.global()
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.script_to_constellation_chan()
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.send(ScriptMsg::ForwardDOMMessage(msg_vec, self.scope_url.clone()));
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Ok(())
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}
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// https://w3c.github.io/ServiceWorker/#service-worker-container-onerror-attribute
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event_handler!(error, GetOnerror, SetOnerror);
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// https://w3c.github.io/ServiceWorker/#ref-for-service-worker-onstatechange-attribute-1
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event_handler!(statechange, GetOnstatechange, SetOnstatechange);
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}
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impl TaskOnce for SimpleWorkerErrorHandler<ServiceWorker> {
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#[allow(unrooted_must_root)]
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fn run_once(self) {
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ServiceWorker::dispatch_simple_error(self.addr);
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}
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}
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