Create passShadowDom

Author: anoblet

passShadowDom

@@ -0,0 +1,13 @@
+/**
+ * Takes a node, CSSResult and appends it
+ */
+export const applyStyle = (node: LitElement, style: CSSResult) => {
+  if ("adoptedStyleSheets" in document) {
+    const sheets = node.shadowRoot.adoptedStyleSheets;
+    node.shadowRoot.adoptedStyleSheets = [...sheets, style._styleSheet];
+  } else {
+    const styleNode = document.createElement("style");
+    styleNode.textContent = style.cssText;
+    node.shadowRoot.appendChild(styleNode);
+  }
+};