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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 https://mozilla.org/MPL/2.0/. */
use crate::dom::abstractworker::SimpleWorkerErrorHandler;
use crate::dom::bindings::cell::DomRefCell;
use crate::dom::bindings::codegen::Bindings::ServiceWorkerBinding::{
ServiceWorkerMethods, ServiceWorkerState, Wrap,
};
use crate::dom::bindings::error::{Error, ErrorResult};
use crate::dom::bindings::inheritance::Castable;
use crate::dom::bindings::refcounted::Trusted;
use crate::dom::bindings::reflector::{reflect_dom_object, DomObject};
use crate::dom::bindings::root::DomRoot;
use crate::dom::bindings::str::USVString;
use crate::dom::bindings::structuredclone::StructuredCloneData;
use crate::dom::eventtarget::EventTarget;
use crate::dom::globalscope::GlobalScope;
use crate::task::TaskOnce;
use dom_struct::dom_struct;
use js::jsapi::JSContext;
use js::rust::HandleValue;
use script_traits::{DOMMessage, ScriptMsg};
use servo_url::ServoUrl;
use std::cell::Cell;
pub type TrustedServiceWorkerAddress = Trusted<ServiceWorker>;
#[dom_struct]
pub struct ServiceWorker {
eventtarget: EventTarget,
script_url: DomRefCell<String>,
scope_url: ServoUrl,
state: Cell<ServiceWorkerState>,
skip_waiting: Cell<bool>,
}
impl ServiceWorker {
fn new_inherited(script_url: &str, skip_waiting: bool, scope_url: ServoUrl) -> ServiceWorker {
ServiceWorker {
eventtarget: EventTarget::new_inherited(),
script_url: DomRefCell::new(String::from(script_url)),
state: Cell::new(ServiceWorkerState::Installing),
scope_url: scope_url,
skip_waiting: Cell::new(skip_waiting),
}
}
pub fn install_serviceworker(
global: &GlobalScope,
script_url: ServoUrl,
scope_url: ServoUrl,
skip_waiting: bool,
) -> DomRoot<ServiceWorker> {
reflect_dom_object(
Box::new(ServiceWorker::new_inherited(
script_url.as_str(),
skip_waiting,
scope_url,
)),
global,
Wrap,
)
}
pub fn dispatch_simple_error(address: TrustedServiceWorkerAddress) {
let service_worker = address.root();
service_worker.upcast().fire_event(atom!("error"));
}
pub fn set_transition_state(&self, state: ServiceWorkerState) {
self.state.set(state);
self.upcast::<EventTarget>()
.fire_event(atom!("statechange"));
}
pub fn get_script_url(&self) -> ServoUrl {
ServoUrl::parse(&self.script_url.borrow().clone()).unwrap()
}
}
impl ServiceWorkerMethods for ServiceWorker {
// https://w3c.github.io/ServiceWorker/#service-worker-state-attribute
fn State(&self) -> ServiceWorkerState {
self.state.get()
}
// https://w3c.github.io/ServiceWorker/#service-worker-url-attribute
fn ScriptURL(&self) -> USVString {
USVString(self.script_url.borrow().clone())
}
#[allow(unsafe_code)]
// https://w3c.github.io/ServiceWorker/#service-worker-postmessage
unsafe fn PostMessage(&self, cx: *mut JSContext, message: HandleValue) -> ErrorResult {
// Step 1
if let ServiceWorkerState::Redundant = self.state.get() {
return Err(Error::InvalidState);
}
// Step 7
let data = StructuredCloneData::write(cx, message)?;
let msg_vec = DOMMessage(data.move_to_arraybuffer());
let _ = self
.global()
.script_to_constellation_chan()
.send(ScriptMsg::ForwardDOMMessage(
msg_vec,
self.scope_url.clone(),
));
Ok(())
}
// https://w3c.github.io/ServiceWorker/#service-worker-container-onerror-attribute
event_handler!(error, GetOnerror, SetOnerror);
// https://w3c.github.io/ServiceWorker/#ref-for-service-worker-onstatechange-attribute-1
event_handler!(statechange, GetOnstatechange, SetOnstatechange);
}
impl TaskOnce for SimpleWorkerErrorHandler<ServiceWorker> {
#[allow(unrooted_must_root)]
fn run_once(self) {
ServiceWorker::dispatch_simple_error(self.addr);
}
}
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