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LibWeb: Introduce Mutation{Record,Observer} and observer microtasks

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Luke Wilde 2022-07-11 16:37:51 +01:00 • committed by Andreas Kling
parent 116a7b74fe
commit c9ba5531e0
15 changed files with 531 additions and 0 deletions
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12
Userland/Libraries/LibWeb/Bindings/MainThreadVM.h
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@ -7,9 +7,11 @@
#pragma once
#include <AK/NonnullRefPtrVector.h>
#include <LibJS/Forward.h>
#include <LibJS/Runtime/JobCallback.h>
#include <LibJS/Runtime/VM.h>
#include <LibWeb/DOM/MutationObserver.h>
#include <LibWeb/HTML/EventLoop/EventLoop.h>
namespace Web::Bindings {
@ -18,6 +20,15 @@ struct WebEngineCustomData final : public JS::VM::CustomData {
virtual ~WebEngineCustomData() override = default;
HTML::EventLoop event_loop;
// FIXME: These should only be on similar-origin window agents, but we don't currently differentiate agent types.
// https://dom.spec.whatwg.org/#mutation-observer-compound-microtask-queued-flag
bool mutation_observer_microtask_queued { false };
// https://dom.spec.whatwg.org/#mutation-observer-list
// FIXME: This should be a set.
NonnullRefPtrVector<DOM::MutationObserver> mutation_observers;
};
struct WebEngineCustomJobCallbackData final : public JS::JobCallback::CustomData {
@ -35,5 +46,6 @@ struct WebEngineCustomJobCallbackData final : public JS::JobCallback::CustomData
HTML::ClassicScript* active_script();
JS::VM& main_thread_vm();
void queue_mutation_observer_microtask(DOM::Document&);
}