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ed9c0c1e09
NavigationObserver register itself in Navigable from constructor and unregister itself from `finalize()`. The problem is that `finalize()` won't be invoked for as long as NavigationObserver is visited by Navigable, leading to GC leaks.
39 lines
1 KiB
C++
39 lines
1 KiB
C++
/*
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* Copyright (c) 2024, Tim Flynn <trflynn89@ladybird.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 <LibGC/Function.h>
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#include <LibGC/Ptr.h>
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#include <LibWeb/Bindings/PlatformObject.h>
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#include <LibWeb/Export.h>
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#include <LibWeb/Forward.h>
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namespace Web::HTML {
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class WEB_API NavigationObserver final : public Bindings::PlatformObject {
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WEB_PLATFORM_OBJECT(NavigationObserver, Bindings::PlatformObject);
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GC_DECLARE_ALLOCATOR(NavigationObserver);
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public:
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[[nodiscard]] GC::Ptr<GC::Function<void()>> navigation_complete() const { return m_navigation_complete; }
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void set_navigation_complete(Function<void()>);
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private:
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NavigationObserver(JS::Realm&, Navigable&);
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virtual void visit_edges(Cell::Visitor&) override;
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virtual void finalize() override;
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IntrusiveListNode<NavigationObserver> m_list_node;
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GC::Ref<Navigable> m_navigable;
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GC::Ptr<GC::Function<void()>> m_navigation_complete;
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public:
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using NavigationObserversList = IntrusiveList<&NavigationObserver::m_list_node>;
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};
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}
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