mirror of
https://github.com/LadybirdBrowser/ladybird
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53fa1b19f1
Replace the spin_until in SVGScriptElement::process_the_script_element with an async fetch that mirrors HTMLScriptElement's mark_as_ready pattern. External SVG scripts now fetch and execute asynchronously, matching Chromium's behavior. For HTML-embedded SVG scripts, the parser pauses via the existing schedule_resume_check infrastructure, extended to support SVG scripts through a new pending_parsing_blocking_svg_script slot on Document. For top-level XML/SVG documents, scripts execute when their fetch completes; the load event is delayed via DocumentLoadEventDelayer which the existing XMLDocumentBuilder::document_end already waits on.
70 lines
2.1 KiB
C++
70 lines
2.1 KiB
C++
/*
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* Copyright (c) 2023, Shannon Booth <shannon@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 <LibURL/URL.h>
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#include <LibWeb/DOM/DocumentLoadEventDelayer.h>
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#include <LibWeb/SVG/SVGElement.h>
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#include <LibWeb/SVG/SVGURIReference.h>
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namespace Web::SVG {
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// https://www.w3.org/TR/SVG/interact.html#InterfaceSVGScriptElement
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class SVGScriptElement
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: public SVGElement
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, public SVGURIReferenceMixin<SupportsXLinkHref::Yes> {
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WEB_PLATFORM_OBJECT(SVGScriptElement, SVGElement);
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GC_DECLARE_ALLOCATOR(SVGScriptElement);
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public:
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void process_the_script_element();
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bool is_parser_inserted() const { return m_parser_inserted; }
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void set_parser_inserted(Badge<HTML::HTMLParser>) { m_parser_inserted = true; }
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bool is_ready_to_be_parser_executed() const { return m_ready_to_be_parser_executed; }
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void execute_pending_parser_blocking_script(Badge<HTML::HTMLParser>);
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void set_source_line_number(Badge<HTML::HTMLParser>, size_t source_line_number) { m_source_line_number = source_line_number; }
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virtual void inserted() override;
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virtual void children_changed(ChildrenChangedMetadata const&) override;
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virtual void attribute_changed(FlyString const& name, Optional<String> const& old_value, Optional<String> const& value, Optional<FlyString> const& namespace_) override;
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protected:
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SVGScriptElement(DOM::Document&, DOM::QualifiedName);
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virtual void initialize(JS::Realm&) override;
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private:
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virtual bool is_svg_script_element() const final { return true; }
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virtual void visit_edges(Cell::Visitor&) override;
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void finish_external_script_fetch(URL::URL const& script_url, ByteBuffer const& body);
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void execute_script();
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bool m_already_processed { false };
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bool m_parser_inserted { false };
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bool m_ready_to_be_parser_executed { false };
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GC::Ptr<HTML::ClassicScript> m_script;
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Optional<DOM::DocumentLoadEventDelayer> m_document_load_event_delayer;
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size_t m_source_line_number { 1 };
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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::SVGScriptElement>() const { return is_svg_script_element(); }
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}
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