add commands and utils packages

packages/tiptap-utils/src/utils/nodeIsActive.js

@@ -0,0 +1,12 @@
+import { findParentNode } from 'prosemirror-utils'
+
+export default function (state, type, attrs) {
+	const predicate = node => node.type === type
+	const parent = findParentNode(predicate)(state.selection)
+
+	if (attrs === {} || !parent) {
+		return !!parent
+	}
+
+	return parent.node.hasMarkup(type, attrs)
+}