mirror of
https://github.com/servo/servo.git
synced 2025-06-06 16:45:39 +00:00
9514f670d1
* Add `no_trace` option to JSTraceable derive * NoTrace wrapper * Port some types to no_trace schematics * Fixing my unsafe mistakes (not tracing traceables) * Add docs & safety guards for no_trace Safety guards (trait shenanigans) guarantees safety usage of `no_trace` * Port canvas_traits to no_trace * Port servo_media to no_trace * Port net_traits to no_trace * Port style to no_trace * Port webgpu to no_trace * Port script_traits to no_trace * Port canvas_traits, devtools_traits, embedder_traits, profile_traits to no_trace * unrooted_must_root lint in seperate file * Add trace_in_no_trace_lint as script_plugin * Composable types in must_not_have_traceable * Introduced HashMapTracedValues wrapper * `HashMap<NoTrace<K>,V>`->`HashMapTracedValues<K,V>` * Port rest of servo's types to no_trace * Port html5ever, euclid, mime and http to no_trace * Port remaining externals to no_trace * Port webxr and Arc<Mutex<_>> * Fix spelling in notrace doc
113 lines
3.5 KiB
Rust
113 lines
3.5 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 crate::dom::bindings::codegen::Bindings::BroadcastChannelBinding::BroadcastChannelMethods;
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use crate::dom::bindings::error::{Error, ErrorResult};
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use crate::dom::bindings::reflector::{reflect_dom_object_with_proto, DomObject};
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use crate::dom::bindings::root::DomRoot;
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use crate::dom::bindings::str::DOMString;
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use crate::dom::bindings::structuredclone;
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use crate::dom::eventtarget::EventTarget;
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use crate::dom::globalscope::GlobalScope;
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use crate::script_runtime::JSContext as SafeJSContext;
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use dom_struct::dom_struct;
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use js::rust::{HandleObject, HandleValue};
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use script_traits::BroadcastMsg;
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use std::cell::Cell;
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use uuid::Uuid;
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#[dom_struct]
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pub struct BroadcastChannel {
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eventtarget: EventTarget,
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name: DOMString,
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closed: Cell<bool>,
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#[no_trace]
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id: Uuid,
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}
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impl BroadcastChannel {
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/// <https://html.spec.whatwg.org/multipage/#broadcastchannel>
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#[allow(non_snake_case)]
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pub fn Constructor(
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global: &GlobalScope,
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proto: Option<HandleObject>,
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name: DOMString,
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) -> DomRoot<BroadcastChannel> {
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BroadcastChannel::new(global, proto, name)
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}
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fn new(
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global: &GlobalScope,
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proto: Option<HandleObject>,
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name: DOMString,
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) -> DomRoot<BroadcastChannel> {
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let channel = reflect_dom_object_with_proto(
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Box::new(BroadcastChannel::new_inherited(name)),
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global,
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proto,
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);
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global.track_broadcast_channel(&*channel);
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channel
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}
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pub fn new_inherited(name: DOMString) -> BroadcastChannel {
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BroadcastChannel {
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eventtarget: EventTarget::new_inherited(),
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name,
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closed: Default::default(),
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id: Uuid::new_v4(),
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}
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}
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/// The unique Id of this channel.
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/// Used for filtering out the sender from the local broadcast.
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pub fn id(&self) -> &Uuid {
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&self.id
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}
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/// Is this channel closed?
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pub fn closed(&self) -> bool {
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self.closed.get()
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}
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}
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impl BroadcastChannelMethods for BroadcastChannel {
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/// <https://html.spec.whatwg.org/multipage/#dom-messageport-postmessage>
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fn PostMessage(&self, cx: SafeJSContext, message: HandleValue) -> ErrorResult {
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// Step 3, if closed.
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if self.closed.get() {
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return Err(Error::InvalidState);
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}
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// Step 6, StructuredSerialize(message).
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let data = structuredclone::write(cx, message, None)?;
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let global = self.global();
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let msg = BroadcastMsg {
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origin: global.origin().immutable().clone(),
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channel_name: self.Name().to_string(),
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data,
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};
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global.schedule_broadcast(msg, &self.id);
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Ok(())
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}
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/// <https://html.spec.whatwg.org/multipage/#dom-broadcastchannel-name>
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fn Name(&self) -> DOMString {
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self.name.clone()
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}
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/// <https://html.spec.whatwg.org/multipage/#dom-broadcastchannel-close>
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fn Close(&self) {
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self.closed.set(true);
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}
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// <https://html.spec.whatwg.org/multipage/#handler-broadcastchannel-onmessageerror>
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event_handler!(messageerror, GetOnmessageerror, SetOnmessageerror);
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// <https://html.spec.whatwg.org/multipage/#handler-broadcastchannel-onmessage>
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event_handler!(message, GetOnmessage, SetOnmessage);
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}
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