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74 lines
3 KiB
C++
74 lines
3 KiB
C++
/*
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* Copyright (c) 2023-2024, 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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#include <LibWeb/Bindings/SVGScriptElementPrototype.h>
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#include <LibWeb/HTML/Scripting/ClassicScript.h>
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#include <LibWeb/Namespace.h>
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#include <LibWeb/SVG/AttributeNames.h>
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#include <LibWeb/SVG/SVGScriptElement.h>
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namespace Web::SVG {
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JS_DEFINE_ALLOCATOR(SVGScriptElement);
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SVGScriptElement::SVGScriptElement(DOM::Document& document, DOM::QualifiedName qualified_name)
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: SVGElement(document, move(qualified_name))
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{
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}
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void SVGScriptElement::initialize(JS::Realm& realm)
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{
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Base::initialize(realm);
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WEB_SET_PROTOTYPE_FOR_INTERFACE(SVGScriptElement);
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}
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void SVGScriptElement::visit_edges(Cell::Visitor& visitor)
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{
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Base::visit_edges(visitor);
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SVGURIReferenceMixin::visit_edges(visitor);
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visitor.visit(m_script);
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}
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// https://www.w3.org/TR/SVGMobile12/script.html#ScriptContentProcessing
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void SVGScriptElement::process_the_script_element()
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{
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// 1. If the 'script' element's "already processed" flag is true or if the element is not in the
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// document tree, then no action is performed and these steps are ended.
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if (m_already_processed || !in_a_document_tree())
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return;
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auto inline_script = child_text_content();
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// FIXME: 2. If the 'script' element references external script content, then the external script content
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// using the current value of the 'xlink:href' attribute is fetched. Further processing of the
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// 'script' element is dependent on the external script content, and will block here until the
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// resource has been fetched or is determined to be an invalid IRI reference.
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if (has_attribute(SVG::AttributeNames::href) || has_attribute_ns(Namespace::XLink.to_string(), SVG::AttributeNames::href)) {
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dbgln("FIXME: Unsupported external fetch of SVGScriptElement!");
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return;
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}
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// 3. The 'script' element's "already processed" flag is set to true.
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m_already_processed = true;
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// 4. If the script content is inline, or if it is external and was fetched successfully, then the
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// script is executed. Note that at this point, these steps may be re-entrant if the execution
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// of the script results in further 'script' elements being inserted into the document.
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// https://html.spec.whatwg.org/multipage/document-lifecycle.html#read-html
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// Before any script execution occurs, the user agent must wait for scripts may run for the newly-created document to be true for document.
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if (!m_document->ready_to_run_scripts())
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HTML::main_thread_event_loop().spin_until(JS::create_heap_function(heap(), [&] { return m_document->ready_to_run_scripts(); }));
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// FIXME: Support non-inline scripts.
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auto& settings_object = document().relevant_settings_object();
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auto base_url = document().base_url();
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m_script = HTML::ClassicScript::create(m_document->url().to_byte_string(), inline_script, settings_object, base_url, m_source_line_number);
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(void)m_script->run();
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}
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}
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