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834202aeb9
This needs to happen before prototype/constructor intitialization can be made lazy. Otherwise, GC could run during the C++ constructor and try to collect the object currently being created.
39 lines
1.1 KiB
C++
39 lines
1.1 KiB
C++
/*
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* Copyright (c) 2021, Tim Flynn <trflynn89@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 <LibJS/Heap/Handle.h>
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#include <LibWeb/Bindings/PlatformObject.h>
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namespace Web::IntersectionObserver {
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struct IntersectionObserverInit {
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Optional<Variant<JS::Handle<DOM::Element>, JS::Handle<DOM::Document>>> root;
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DeprecatedString root_margin { "0px"sv };
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Variant<double, Vector<double>> threshold { 0 };
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};
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// https://w3c.github.io/IntersectionObserver/#intersection-observer-interface
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class IntersectionObserver : public Bindings::PlatformObject {
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WEB_PLATFORM_OBJECT(IntersectionObserver, Bindings::PlatformObject);
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public:
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static JS::NonnullGCPtr<IntersectionObserver> construct_impl(JS::Realm&, WebIDL::CallbackType* callback, IntersectionObserverInit const& options = {});
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virtual ~IntersectionObserver() override;
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void observe(DOM::Element& target);
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void unobserve(DOM::Element& target);
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void disconnect();
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private:
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explicit IntersectionObserver(JS::Realm&);
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virtual void initialize(JS::Realm&) override;
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};
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}
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