Function importShadowBody

src/shadow-embed.js:160–191

(shadowRoot, body, deep)

 * @return {!Element}
 */
export function importShadowBody(shadowRoot, body, deep) {
  const doc = shadowRoot.ownerDocument;
  let resultBody;
  if (isShadowCssSupported()) {
    resultBody = dev().assertElement(doc.importNode(body, deep));
  } else {
    resultBody = doc.createElement('amp-body');
    setInitialDisplay(resultBody, 'block');
    for (let i = 0; i < body.attributes.length; i++) {
      resultBody.setAttribute(
        body.attributes[0].name,
        body.attributes[0].value
      );
    }
    if (deep) {
      for (let n = body.firstChild; !!n; n = n.nextSibling) {
        resultBody.appendChild(doc.importNode(n, true));
      }
    }
  }
  setStyle(resultBody, 'position', 'relative');
  const oldBody = shadowRoot['body'];
  if (oldBody) {
    shadowRoot.removeChild(oldBody);
  }
  shadowRoot.appendChild(resultBody);
  Object.defineProperty(shadowRoot, 'body', {
    configurable: true,
    value: resultBody,
  });
  return resultBody;
}

/**
 * If necessary, transforms CSS to isolate AMP CSS within the shaodw root and