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85e8e7ec23
This allows SVG elements to refer to elements which are in other documents, such as https://www.neogaf.com/forums/gaming-discussion.2/ or on lemmy.ml Fixes: #141 Progress towards: #350
83 lines
2.4 KiB
C++
83 lines
2.4 KiB
C++
/*
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* Copyright (c) 2023, Preston Taylor <95388976+PrestonLTaylor@users.noreply.github.com>
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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 <AK/FlyString.h>
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#include <LibGfx/Path.h>
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#include <LibWeb/DOM/DocumentObserver.h>
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#include <LibWeb/SVG/SVGAnimatedLength.h>
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#include <LibWeb/SVG/SVGGraphicsElement.h>
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#include <LibWeb/SVG/SVGURIReference.h>
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namespace Web::SVG {
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class SVGUseElement final
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: public SVGGraphicsElement
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, public SVGURIReferenceMixin<SupportsXLinkHref::Yes> {
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WEB_PLATFORM_OBJECT(SVGUseElement, SVGGraphicsElement);
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JS_DECLARE_ALLOCATOR(SVGUseElement);
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public:
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virtual ~SVGUseElement() override = default;
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virtual void attribute_changed(FlyString const& name, Optional<String> const& old_value, Optional<String> const& value) override;
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virtual void inserted() override;
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void svg_element_changed(SVGElement&);
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void svg_element_removed(SVGElement&);
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JS::NonnullGCPtr<SVGAnimatedLength> x() const;
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JS::NonnullGCPtr<SVGAnimatedLength> y() const;
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JS::NonnullGCPtr<SVGAnimatedLength> width() const;
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JS::NonnullGCPtr<SVGAnimatedLength> height() const;
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JS::GCPtr<SVGElement> instance_root() const;
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JS::GCPtr<SVGElement> animated_instance_root() const;
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virtual Gfx::AffineTransform element_transform() const override;
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private:
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SVGUseElement(DOM::Document&, DOM::QualifiedName);
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virtual void initialize(JS::Realm&) override;
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virtual void visit_edges(Cell::Visitor&) override;
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virtual bool is_svg_use_element() const override { return true; }
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virtual JS::GCPtr<Layout::Node> create_layout_node(NonnullRefPtr<CSS::StyleProperties>) override;
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void process_the_url(Optional<String> const& href);
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static Optional<FlyString> parse_id_from_href(StringView);
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JS::GCPtr<DOM::Element> referenced_element();
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void fetch_the_document(URL::URL const& url);
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bool is_referrenced_element_same_document() const;
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void clone_element_tree_as_our_shadow_tree(Element* to_clone);
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bool is_valid_reference_element(Element const& reference_element) const;
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Optional<float> m_x;
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Optional<float> m_y;
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URL::URL m_href;
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JS::GCPtr<DOM::DocumentObserver> m_document_observer;
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JS::GCPtr<HTML::SharedImageRequest> m_image_request;
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Optional<DOM::DocumentLoadEventDelayer> m_load_event_delayer;
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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<SVG::SVGUseElement>() const { return is_svg_use_element(); }
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}
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