servo/components/constellation/serviceworker.rs
Martin Robinson 6031a12fd1
Move ScriptToConstellationMsg to constellation_traits (#36364)
This is the last big change necessary to create the
`constellation_traits` crate. This moves the data structure for messages
that originate from the `ScriptThread` and are sent to the
`Contellation` to `constellation_traits`, effectively splitting
`script_traits` in half. Before, `script_traits` was responsible for
exposing the API of both the `ScriptThread` and the `Constellation` to
the rest of Servo.

- Data structures that are used by `ScriptToConstellationMsg` are moved
  to `constellation_traits`. The dependency graph looks a bit like this:
  `script_layout_interface` depends on `script_traits` depends on
  `constellation_traits` depends on `embedder_traits`.
- Data structures that are used in the embedding layer
  (`UntrustedNodeAddress`, `CompositorHitTestResult`, `TouchEventResult`
  and `AnimationState`) are moved to embedder_traits, to avoid a
  dependency cycle between `webrender_traits` and
  `constellation_traits`.
- Types dealing with MessagePorts and serialization are moved to
  `constellation_traits::message_port`.

Testing: This is covered by existing tests as it just moves types
around.
Signed-off-by: Martin Robinson <mrobinson@igalia.com>

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
2025-04-05 22:13:29 +00:00

63 lines
1.9 KiB
Rust

/* 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 constellation_traits::{SWManagerSenders, ServiceWorkerManagerFactory};
use ipc_channel::Error;
use ipc_channel::ipc::IpcSender;
use serde::{Deserialize, Serialize};
use servo_config::opts::{self, Opts};
use servo_config::prefs;
use servo_config::prefs::Preferences;
use servo_url::ImmutableOrigin;
use crate::process_manager::Process;
use crate::sandboxing::{UnprivilegedContent, spawn_multiprocess};
/// Conceptually, this is glue to start an agent-cluster for a service worker agent.
/// <https://html.spec.whatwg.org/multipage/#obtain-a-service-worker-agent>
#[derive(Deserialize, Serialize)]
pub struct ServiceWorkerUnprivilegedContent {
opts: Opts,
prefs: Box<Preferences>,
senders: SWManagerSenders,
origin: ImmutableOrigin,
lifeline_sender: Option<IpcSender<()>>,
}
impl ServiceWorkerUnprivilegedContent {
pub fn new(
senders: SWManagerSenders,
origin: ImmutableOrigin,
lifeline_sender: Option<IpcSender<()>>,
) -> ServiceWorkerUnprivilegedContent {
ServiceWorkerUnprivilegedContent {
opts: (*opts::get()).clone(),
prefs: Box::new(prefs::get().clone()),
senders,
origin,
lifeline_sender,
}
}
/// Start the agent-cluster.
pub fn start<SWF>(self)
where
SWF: ServiceWorkerManagerFactory,
{
SWF::create(self.senders, self.origin);
}
/// Start the agent-cluster in it's own process.
pub fn spawn_multiprocess(self) -> Result<Process, Error> {
spawn_multiprocess(UnprivilegedContent::ServiceWorker(self))
}
pub fn opts(&self) -> Opts {
self.opts.clone()
}
pub fn prefs(&self) -> &Preferences {
&self.prefs
}
}