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LibWeb: Add support for inline SVG element scripts

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This commit is contained in:
Shannon Booth 2023-09-26 01:12:21 +13:00 • committed by Sam Atkins
parent c4efc0a5aa
commit 4821d284c6
6 changed files with 74 additions and 10 deletions
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42
Userland/Libraries/LibWeb/SVG/SVGScriptElement.cpp
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@ -4,6 +4,9 @@
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibWeb/HTML/Scripting/ClassicScript.h>
#include <LibWeb/Namespace.h>
#include <LibWeb/SVG/AttributeNames.h>
#include <LibWeb/SVG/SVGScriptElement.h>
namespace Web::SVG {
@ -19,4 +22,43 @@ void SVGScriptElement::initialize(JS::Realm& realm)
set_prototype(&Bindings::ensure_web_prototype<Bindings::SVGScriptElementPrototype>(realm, "SVGScriptElement"));
}
void SVGScriptElement::visit_edges(Cell::Visitor& visitor)
{
Base::visit_edges(visitor);
visitor.visit(m_script);
}
// https://www.w3.org/TR/SVGMobile12/script.html#ScriptContentProcessing
void SVGScriptElement::process_the_script_element()
{
// 1. If the 'script' element's "already processed" flag is true or if the element is not in the
// document tree, then no action is performed and these steps are ended.
if (m_already_processed || !in_a_document_tree())
return;
auto inline_script = child_text_content();
// FIXME: 2. If the 'script' element references external script content, then the external script content
// using the current value of the 'xlink:href' attribute is fetched. Further processing of the
// 'script' element is dependent on the external script content, and will block here until the
// resource has been fetched or is determined to be an invalid IRI reference.
if (has_attribute(SVG::AttributeNames::href) || has_attribute_ns(Namespace::XLink.to_string(), SVG::AttributeNames::href)) {
dbgln("FIXME: Unsupported external fetch of SVGScriptElement!");
return;
}
// 3. The 'script' element's "already processed" flag is set to true.
m_already_processed = true;
// 4. If the script content is inline, or if it is external and was fetched successfully, then the
// script is executed. Note that at this point, these steps may be re-entrant if the execution
// of the script results in further 'script' elements being inserted into the document.
// FIXME: Support non-inline scripts.
auto& settings_object = document().relevant_settings_object();
auto base_url = document().base_url();
m_script = HTML::ClassicScript::create(m_document->url().to_deprecated_string(), inline_script, settings_object, base_url, m_source_line_number);
(void)m_script->run();
}
}