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LibWeb: Add simple ad-hoc version of window.postMessage()

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This allows us to use the wpt.live copy of the ACID3 test, which is kept
updated, unlike the acidtests.org version.
This commit is contained in:
Andreas Kling 2022-02-26 17:21:40 +01:00
parent fc5e414596
commit f855cbac92
4 changed files with 29 additions and 0 deletions
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15
Userland/Libraries/LibWeb/DOM/Window.cpp
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@ -19,6 +19,7 @@
#include <LibWeb/DOM/Window.h>
#include <LibWeb/HTML/BrowsingContext.h>
#include <LibWeb/HTML/EventLoop/EventLoop.h>
#include <LibWeb/HTML/MessageEvent.h>
#include <LibWeb/HTML/PageTransitionEvent.h>
#include <LibWeb/HTML/Scripting/ExceptionReporter.h>
#include <LibWeb/HTML/Storage.h>
@ -476,4 +477,18 @@ Window* Window::parent()
return &current->active_document()->window();
}
// https://html.spec.whatwg.org/multipage/web-messaging.html#window-post-message-steps
DOM::ExceptionOr<void> Window::post_message(JS::Value message, String const&)
{
// FIXME: This is an ad-hoc hack implementation instead, since we don't currently
// have serialization and deserialization of messages.
HTML::queue_global_task(HTML::Task::Source::PostedMessage, *wrapper(), [strong_this = NonnullRefPtr(*this), message]() mutable {
HTML::MessageEventInit event_init {};
event_init.data = message;
event_init.origin = "<origin>";
strong_this->dispatch_event(HTML::MessageEvent::create(HTML::EventNames::message, event_init));
});
return {};
}
}