ladybird/Userland/Libraries/LibWeb/HTML/HTMLObjectElement.h
Timothy Flynn 45a47cb32b LibWeb: Generalize ImageBox and ImagePaintable for any ImageProvider
They currently assume the DOM node is an HTMLImageElement with respect
to handling the alt attribute. The HTMLInputElement will require the
same behavior.
2024-02-19 11:07:30 +01:00

97 lines
3.1 KiB
C++

/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibCore/Forward.h>
#include <LibGfx/Forward.h>
#include <LibWeb/HTML/FormAssociatedElement.h>
#include <LibWeb/HTML/HTMLElement.h>
#include <LibWeb/HTML/NavigableContainer.h>
#include <LibWeb/Layout/ImageProvider.h>
#include <LibWeb/Loader/Resource.h>
namespace Web::HTML {
class HTMLObjectElement final
: public NavigableContainer
, public FormAssociatedElement
, public ResourceClient
, public Layout::ImageProvider {
WEB_PLATFORM_OBJECT(HTMLObjectElement, NavigableContainer)
JS_DECLARE_ALLOCATOR(HTMLObjectElement);
FORM_ASSOCIATED_ELEMENT(NavigableContainer, HTMLObjectElement)
enum class Representation {
Unknown,
Image,
NestedBrowsingContext,
Children,
};
public:
virtual ~HTMLObjectElement() override;
virtual void form_associated_element_attribute_changed(FlyString const& name, Optional<String> const& value) override;
String data() const;
void set_data(String const& data) { MUST(set_attribute(HTML::AttributeNames::data, data)); }
String type() const { return get_attribute_value(HTML::AttributeNames::type); }
// ^FormAssociatedElement
// https://html.spec.whatwg.org/multipage/forms.html#category-listed
virtual bool is_listed() const override { return true; }
virtual void visit_edges(Cell::Visitor&) override;
private:
HTMLObjectElement(DOM::Document&, DOM::QualifiedName);
virtual bool is_html_object_element() const override { return true; }
virtual void initialize(JS::Realm&) override;
virtual JS::GCPtr<Layout::Node> create_layout_node(NonnullRefPtr<CSS::StyleProperties>) override;
bool has_ancestor_media_element_or_object_element_not_showing_fallback_content() const;
void queue_element_task_to_run_object_representation_steps();
void run_object_representation_handler_steps(Optional<ByteString> resource_type);
void run_object_representation_completed_steps(Representation);
void run_object_representation_fallback_steps();
void load_image();
void update_layout_and_child_objects(Representation);
// ^ResourceClient
virtual void resource_did_load() override;
virtual void resource_did_fail() override;
// ^DOM::Element
virtual i32 default_tab_index_value() const override;
// ^Layout::ImageProvider
virtual bool is_image_available() const override;
virtual Optional<CSSPixels> intrinsic_width() const override;
virtual Optional<CSSPixels> intrinsic_height() const override;
virtual Optional<CSSPixelFraction> intrinsic_aspect_ratio() const override;
virtual RefPtr<Gfx::ImmutableBitmap> current_image_bitmap(Gfx::IntSize = {}) const override;
virtual void set_visible_in_viewport(bool) override;
Representation m_representation { Representation::Unknown };
JS::GCPtr<DecodedImageData> image_data() const;
JS::GCPtr<SharedImageRequest> m_image_request;
};
}
namespace Web::DOM {
template<>
inline bool Node::fast_is<HTML::HTMLObjectElement>() const { return is_html_object_element(); }
}