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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, WorkerErrorHandler};
use dom::abstractworker::{WorkerScriptMsg, WorkerScriptLoadOrigin, SharedRt};
use dom::bindings::cell::DOMRefCell;
use dom::bindings::codegen::Bindings::EventHandlerBinding::EventHandlerNonNull;
use dom::bindings::codegen::Bindings::ServiceWorkerBinding::{ServiceWorkerMethods, ServiceWorkerState, Wrap};
use dom::bindings::global::GlobalRef;
use dom::bindings::inheritance::Castable;
use dom::bindings::js::Root;
use dom::bindings::refcounted::Trusted;
use dom::bindings::reflector::{Reflectable, reflect_dom_object};
use dom::bindings::str::{DOMString, USVString};
use dom::client::Client;
use dom::errorevent::ErrorEvent;
use dom::event::{Event, EventBubbles, EventCancelable};
use dom::eventtarget::EventTarget;
use dom::serviceworkerglobalscope::ServiceWorkerGlobalScope;
use dom::workerglobalscope::prepare_workerscope_init;
use ipc_channel::ipc;
use js::jsapi::RootedValue;
use js::jsval::UndefinedValue;
use script_thread::Runnable;
use std::cell::Cell;
use std::sync::atomic::{AtomicBool, Ordering};
use std::sync::mpsc::{Sender, channel};
use std::sync::{Arc, Mutex};
use url::Url;
pub type TrustedServiceWorkerAddress = Trusted<ServiceWorker>;
#[dom_struct]
pub struct ServiceWorker {
eventtarget: EventTarget,
script_url: DOMRefCell<String>,
state: Cell<ServiceWorkerState>,
closing: Arc<AtomicBool>,
#[ignore_heap_size_of = "Defined in std"]
sender: Sender<(TrustedServiceWorkerAddress, WorkerScriptMsg)>,
#[ignore_heap_size_of = "Defined in rust-mozjs"]
runtime: Arc<Mutex<Option<SharedRt>>>,
skip_waiting: Cell<bool>
}
impl ServiceWorker {
fn new_inherited(sender: Sender<(TrustedServiceWorkerAddress, WorkerScriptMsg)>,
closing: Arc<AtomicBool>,
script_url: &str,
skip_waiting: bool) -> ServiceWorker {
ServiceWorker {
eventtarget: EventTarget::new_inherited(),
closing: closing,
sender: sender,
script_url: DOMRefCell::new(String::from(script_url)),
state: Cell::new(ServiceWorkerState::Installing),
runtime: Arc::new(Mutex::new(None)),
skip_waiting: Cell::new(skip_waiting)
}
}
pub fn new(global: GlobalRef,
closing: Arc<AtomicBool>,
sender: Sender<(TrustedServiceWorkerAddress, WorkerScriptMsg)>,
script_url: &str,
skip_waiting: bool) -> Root<ServiceWorker> {
reflect_dom_object(box ServiceWorker::new_inherited(sender, closing, script_url, skip_waiting), global, Wrap)
}
pub fn dispatch_simple_error(address: TrustedServiceWorkerAddress) {
let service_worker = address.root();
service_worker.upcast().fire_simple_event("error");
}
pub fn is_closing(&self) -> bool {
self.closing.load(Ordering::SeqCst)
}
pub fn set_transition_state(&self, state: ServiceWorkerState) {
self.state.set(state);
self.upcast::<EventTarget>().fire_simple_event("statechange");
}
pub fn handle_error_message(address: TrustedServiceWorkerAddress, message: DOMString,
filename: DOMString, lineno: u32, colno: u32) {
let worker = address.root();
if worker.is_closing() {
return;
}
let global = worker.r().global();
let error = RootedValue::new(global.r().get_cx(), UndefinedValue());
let errorevent = ErrorEvent::new(global.r(), atom!("error"),
EventBubbles::Bubbles, EventCancelable::Cancelable,
message, filename, lineno, colno, error.handle());
errorevent.upcast::<Event>().fire(worker.upcast());
}
#[allow(unsafe_code)]
pub fn init_service_worker(global: GlobalRef,
script_url: Url,
skip_waiting: bool) -> Root<ServiceWorker> {
let (sender, receiver) = channel();
let closing = Arc::new(AtomicBool::new(false));
let worker = ServiceWorker::new(global,
closing.clone(),
sender.clone(),
script_url.as_str(),
skip_waiting);
let worker_ref = Trusted::new(worker.r());
let worker_load_origin = WorkerScriptLoadOrigin {
referrer_url: None,
referrer_policy: None,
request_source: global.request_source(),
pipeline_id: Some(global.pipeline())
};
let (devtools_sender, devtools_receiver) = ipc::channel().unwrap();
let init = prepare_workerscope_init(global,
"Service Worker".to_owned(),
script_url.clone(),
devtools_sender.clone(),
closing);
// represents a service worker client
let sw_client = Client::new(global.as_window());
let trusted_client = Trusted::new(&*sw_client);
ServiceWorkerGlobalScope::run_serviceworker_scope(
init, script_url, global.pipeline(), devtools_receiver, worker.runtime.clone(), worker_ref,
global.script_chan(), sender, receiver, trusted_client, worker_load_origin);
worker
}
}
impl ServiceWorkerMethods for ServiceWorker {
// https://slightlyoff.github.io/ServiceWorker/spec/service_worker/#service-worker-state-attribute
fn State(&self) -> ServiceWorkerState {
self.state.get()
}
// https://slightlyoff.github.io/ServiceWorker/spec/service_worker/#service-worker-url-attribute
fn ScriptURL(&self) -> USVString {
USVString(self.script_url.borrow().clone())
}
// https://slightlyoff.github.io/ServiceWorker/spec/service_worker/#service-worker-container-onerror-attribute
event_handler!(error, GetOnerror, SetOnerror);
// https://slightlyoff.github.io/ServiceWorker/spec/service_worker/#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);
}
}
impl Runnable for WorkerErrorHandler<ServiceWorker> {
#[allow(unrooted_must_root)]
fn handler(self: Box<WorkerErrorHandler<ServiceWorker>>) {
let this = *self;
ServiceWorker::handle_error_message(this.addr, this.msg, this.file_name, this.line_num, this.col_num);
}
}
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