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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 http://mozilla.org/MPL/2.0/. */
use dom::abstractworker::SimpleWorkerErrorHandler;
use dom::bindings::cell::DOMRefCell;
use dom::bindings::codegen::Bindings::EventHandlerBinding::EventHandlerNonNull;
use dom::bindings::codegen::Bindings::ServiceWorkerBinding::{ServiceWorkerMethods, ServiceWorkerState, Wrap};
use dom::bindings::error::{ErrorResult, Error};
use dom::bindings::inheritance::Castable;
use dom::bindings::js::Root;
use dom::bindings::refcounted::Trusted;
use dom::bindings::reflector::{DomObject, reflect_dom_object};
use dom::bindings::str::USVString;
use dom::bindings::structuredclone::StructuredCloneData;
use dom::eventtarget::EventTarget;
use dom::globalscope::GlobalScope;
use js::jsapi::{HandleValue, JSContext};
use script_thread::Runnable;
use script_traits::{ScriptMsg, DOMMessage};
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) -> Root<ServiceWorker> {
reflect_dom_object(box 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 = try!(StructuredCloneData::write(cx, message));
let msg_vec = DOMMessage(data.move_to_arraybuffer());
let _ =
self.global()
.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 Runnable for SimpleWorkerErrorHandler<ServiceWorker> {
#[allow(unrooted_must_root)]
fn handler(self: Box<SimpleWorkerErrorHandler<ServiceWorker>>) {
let this = *self;
ServiceWorker::dispatch_simple_error(this.addr);
}
}
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