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"use strict";
const { SVG_NS } = require("../namespaces");
// https://svgwg.org/svg2-draft/render.html#TermNeverRenderedElement
const neverRenderedElements = new Set([
"clipPath",
"defs",
"desc",
"linearGradient",
"marker",
"mask",
"metadata",
"pattern",
"radialGradient",
"script",
"style",
"title",
"symbol"
]);
// https://svgwg.org/svg2-draft/render.html#Rendered-vs-NonRendered
exports.isRenderedElement = elImpl => {
if (neverRenderedElements.has(elImpl._localName)) {
return false;
}
// This does not check for elements excluded because of conditional processing attributes or ‘switch’ structures,
// because conditional processing is not implemented.
// https://svgwg.org/svg2-draft/struct.html#ConditionalProcessing
// This does not check for computed style of display being none, since that is not yet implemented for HTML
// focusability either (and there are no tests yet).
if (!elImpl.isConnected) {
return false;
}
// The spec is unclear about how to deal with non-SVG parents, so we only perform this check for SVG-namespace
// parents.
if (elImpl.parentElement && elImpl.parentElement._namespaceURI === SVG_NS &&
!exports.isRenderedElement(elImpl.parentNode)) {
return false;
}
return true;
};
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