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LibWeb: Implement MessageEvent.initMessageEvent

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This fixes wpt/html/webappapis/scripting/events/messageevent-constructor.https.html
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Jamie Mansfield 2024-07-09 19:43:51 +01:00 • committed by Andreas Kling
commit ffb3a28684
Notes: sideshowbarker 2024-07-16 18:26:46 +09:00
3 changed files with 31 additions and 0 deletions
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27
Userland/Libraries/LibWeb/HTML/MessageEvent.cpp
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@ -1,5 +1,6 @@
/*
* Copyright (c) 2022, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2024, Jamie Mansfield <jmansfield@cadixdev.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
@ -75,4 +76,30 @@ JS::NonnullGCPtr<JS::Object> MessageEvent::ports() const
return *m_ports_array;
}
// https://html.spec.whatwg.org/multipage/comms.html#dom-messageevent-initmessageevent
void MessageEvent::init_message_event(String const& type, bool bubbles, bool cancelable, JS::Value data, String const& origin, String const& last_event_id, Optional<MessageEventSource> source, Vector<JS::Handle<MessagePort>> const& ports)
{
// The initMessageEvent(type, bubbles, cancelable, data, origin, lastEventId, source, ports) method must initialize the event in a
// manner analogous to the similarly-named initEvent() method.
// 1. If this’s dispatch flag is set, then return.
if (dispatched())
return;
// 2. Initialize this with type, bubbles, and cancelable.
initialize_event(type, bubbles, cancelable);
// Implementation Defined: Initialise other values.
m_data = data;
m_origin = origin;
m_last_event_id = last_event_id;
m_source = source;
m_ports.clear();
m_ports.ensure_capacity(ports.size());
for (auto const& port : ports) {
VERIFY(port);
m_ports.unchecked_append(static_cast<JS::Object&>(*port));
}
}
}