268b9c5d90
This removes a set of complex reference cycles between DOM, layout tree and browsing context. It also makes lifetimes much easier to reason about, as the DOM and layout trees are now free to keep each other alive.
69 lines
2.1 KiB
C++
69 lines
2.1 KiB
C++
/*
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* Copyright (c) 2020, Andreas Kling <kling@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 <LibCore/Forward.h>
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#include <LibGfx/Forward.h>
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#include <LibWeb/HTML/BrowsingContextContainer.h>
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#include <LibWeb/HTML/FormAssociatedElement.h>
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#include <LibWeb/HTML/HTMLElement.h>
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#include <LibWeb/Loader/ImageLoader.h>
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namespace Web::HTML {
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class HTMLObjectElement final
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: public BrowsingContextContainer
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, public FormAssociatedElement
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, public ResourceClient {
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WEB_PLATFORM_OBJECT(HTMLObjectElement, BrowsingContextContainer)
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FORM_ASSOCIATED_ELEMENT(BrowsingContextContainer, HTMLObjectElement)
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enum class Representation {
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Unknown,
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Image,
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NestedBrowsingContext,
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Children,
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};
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public:
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virtual ~HTMLObjectElement() override;
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virtual void parse_attribute(FlyString const& name, String const& value) override;
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String data() const;
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void set_data(String const& data) { set_attribute(HTML::AttributeNames::data, data); }
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String type() const { return attribute(HTML::AttributeNames::type); }
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// ^FormAssociatedElement
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// https://html.spec.whatwg.org/multipage/forms.html#category-listed
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virtual bool is_listed() const override { return true; }
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private:
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HTMLObjectElement(DOM::Document&, DOM::QualifiedName);
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virtual JS::GCPtr<Layout::Node> create_layout_node(NonnullRefPtr<CSS::StyleProperties>) override;
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bool has_ancestor_media_element_or_object_element_not_showing_fallback_content() const;
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void queue_element_task_to_run_object_representation_steps();
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void run_object_representation_handler_steps(Optional<String> resource_type);
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void run_object_representation_completed_steps(Representation);
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void run_object_representation_fallback_steps();
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void convert_resource_to_image();
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void update_layout_and_child_objects(Representation);
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// ^ResourceClient
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virtual void resource_did_load() override;
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virtual void resource_did_fail() override;
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Representation m_representation { Representation::Unknown };
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Optional<ImageLoader> m_image_loader;
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};
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}
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