c648e24cff
We achieve this by adding a new Layout::ImageProvider class and having both HTMLImageElement and HTMLObjectElement inherit from it. The HTML spec is vague on how object image loading should work, which is why this first pass is focusing on image elements.
80 lines
2.5 KiB
C++
80 lines
2.5 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/FormAssociatedElement.h>
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#include <LibWeb/HTML/HTMLElement.h>
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#include <LibWeb/HTML/NavigableContainer.h>
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#include <LibWeb/Layout/ImageProvider.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 NavigableContainer
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, public FormAssociatedElement
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, public ResourceClient
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, public Layout::ImageProvider {
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WEB_PLATFORM_OBJECT(HTMLObjectElement, NavigableContainer)
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FORM_ASSOCIATED_ELEMENT(NavigableContainer, 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(DeprecatedFlyString const& name, DeprecatedString const& value) override;
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DeprecatedString data() const;
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void set_data(DeprecatedString const& data) { MUST(set_attribute(HTML::AttributeNames::data, data)); }
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DeprecatedString 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::ThrowCompletionOr<void> initialize(JS::Realm&) override;
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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<DeprecatedString> 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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// ^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 RefPtr<Gfx::Bitmap const> current_image_bitmap() const override;
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virtual void set_visible_in_viewport(bool) 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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