svgdom/src/dom/svg/SVGElement.js

Straightforward DOM implementation for SVG, HTML and XML

import { Element } from '../Element.js'
export class SVGElement extends Element {
  get ownerSVGElement () {
    let parent = this
    while ((parent = parent.parentNode)) {
      if ('svg' == parent.nodeName) {
        return parent
      }
    }
    return null
  }

  get viewportElement () {
    let parent = this
    while ((parent = parent.parentNode)) {
      // TODO: and others
      if ([ 'svg', 'symbol' ].includes(parent.nodeName)) {
        return parent
      }
    }
    return null
  }
}