2bf1f41805
Move CSS animation values into a mutable overlay on computed properties and make base computed style data immutable after construction. Base style mutation now goes through a builder that is consumed on publish, so installed styles no longer expose mutation APIs. Build new base style data for inherited style updates instead of cloning and mutating installed computed properties. Element-specific computed style adjustments now run before publication, while animation and transition updates continue to mutate only the animated overlay.
107 lines
3.5 KiB
C++
107 lines
3.5 KiB
C++
/*
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* Copyright (c) 2020, Andreas Kling <andreas@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 <LibCore/Forward.h>
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#include <LibGfx/Forward.h>
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#include <LibWeb/HTML/NavigableContainer.h>
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#include <LibWeb/Layout/ImageProvider.h>
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namespace Web::HTML {
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class HTMLObjectElement final
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: public NavigableContainer
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, public Layout::ImageProvider {
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WEB_PLATFORM_OBJECT(HTMLObjectElement, NavigableContainer)
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GC_DECLARE_ALLOCATOR(HTMLObjectElement);
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enum class Representation {
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Unknown,
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Image,
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ContentNavigable,
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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 form_associated_element_attribute_changed(FlyString const& name, Optional<String> const& old_value, Optional<String> const& value, Optional<FlyString> const& namespace_) override;
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virtual void form_associated_element_was_removed(DOM::Node*) override;
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String data() const;
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void set_data(String const& data);
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String type() const { return get_attribute_value(HTML::AttributeNames::type); }
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// ^FormAssociatedElement
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virtual bool is_form_associated_element() const override { return true; }
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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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// ^EventTarget
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virtual bool is_focusable() const override
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{
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return meets_focusable_area_rendering_requirements();
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}
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virtual void visit_edges(Cell::Visitor&) override;
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virtual void adopted_from(DOM::Document&) override;
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private:
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HTMLObjectElement(DOM::Document&, DOM::QualifiedName);
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virtual bool is_html_object_element() const override { return true; }
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virtual void initialize(JS::Realm&) override;
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virtual bool is_presentational_hint(FlyString const&) const override;
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virtual void apply_presentational_hints(Vector<CSS::StyleProperty>&) const override;
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virtual RefPtr<Layout::Node> create_layout_node(CSS::ComputedProperties const&) override;
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virtual void adjust_computed_style(CSS::ComputedProperties::Builder&) 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(Fetch::Infrastructure::Response const&, MimeSniff::MimeType const&, ReadonlyBytes);
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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 load_image();
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void update_layout_and_child_objects(Representation);
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void resource_did_load(Fetch::Infrastructure::Response const&, ReadonlyBytes);
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void resource_did_fail();
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// ^DOM::Element
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virtual i32 default_tab_index_value() const override;
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// ^Layout::ImageProvider
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virtual GC::Ptr<DecodedImageData> decoded_image_data() const override { return image_data(); }
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GC::Ptr<DecodedImageData> image_data() const;
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Representation m_representation { Representation::Unknown };
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GC::Ptr<SharedResourceRequest> m_resource_request;
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GC::Ptr<DOM::DocumentObserver> m_document_observer;
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Vector<DOM::DocumentLoadEventDelayer> m_document_load_event_delayer_for_object_representation_task;
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Vector<DOM::DocumentLoadEventDelayer> m_document_load_event_delayer_for_resource_load;
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};
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}
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namespace Web::DOM {
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template<>
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inline bool Node::fast_is<HTML::HTMLObjectElement>() const { return is_html_object_element(); }
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}
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