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https://github.com/LadybirdBrowser/ladybird.git
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de14978046
Route BroadcastChannel messages over IPC so matching channels can receive them across WebContent and WebWorker processes, rather than only within a single process. Each channel now serializes its payload, sends it upward over IPC, and receiving processes deliver it locally after matching by storage key and channel name.
58 lines
1.5 KiB
C++
58 lines
1.5 KiB
C++
/*
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* Copyright (c) 2024, Jamie Mansfield <jmansfield@cadixdev.org>
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* Copyright (c) 2024-2026, Shannon Booth <shannon@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <LibWeb/DOM/EventTarget.h>
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namespace Web::HTML {
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class BroadcastChannelRepository;
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class BroadcastChannel final : public DOM::EventTarget {
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WEB_PLATFORM_OBJECT(BroadcastChannel, DOM::EventTarget);
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GC_DECLARE_ALLOCATOR(BroadcastChannel);
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public:
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static constexpr bool OVERRIDES_FINALIZE = true;
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[[nodiscard]] static GC::Ref<BroadcastChannel> construct_impl(JS::Realm&, FlyString const& name);
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// https://html.spec.whatwg.org/multipage/web-messaging.html#dom-broadcastchannel-name
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FlyString const& name() const
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{
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// The name getter steps are to return this's channel name.
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return m_channel_name;
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}
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WebIDL::ExceptionOr<void> post_message(JS::Value message);
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void close();
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void set_onmessage(GC::Ptr<WebIDL::CallbackType>);
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GC::Ptr<WebIDL::CallbackType> onmessage();
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void set_onmessageerror(GC::Ptr<WebIDL::CallbackType>);
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GC::Ptr<WebIDL::CallbackType> onmessageerror();
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static WEB_API void deliver_message_locally(BroadcastChannelMessage const&);
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private:
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friend class BroadcastChannelRepository;
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BroadcastChannel(JS::Realm&, FlyString const& name);
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virtual void initialize(JS::Realm&) override;
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virtual void finalize() override;
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bool is_eligible_for_messaging() const;
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FlyString m_channel_name;
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u64 m_channel_id { 0 };
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bool m_closed_flag { false };
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};
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}
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