add nodeIsActive

packages/tiptap-core/package.json

@@ -23,6 +23,7 @@
     "prosemirror-keymap": "^1.1.3",
     "prosemirror-model": "^1.9.1",
     "prosemirror-state": "^1.3.3",
+    "prosemirror-utils": "^0.9.6",
     "prosemirror-view": "^1.14.6"
   }
 }

packages/tiptap-core/src/utils/nodeIsActive.ts

@@ -0,0 +1,15 @@
+import { findParentNode, findSelectedNodeOfType } from 'prosemirror-utils'
+import { EditorState } from 'prosemirror-state'
+import { Node, NodeType } from 'prosemirror-model'
+
+export default function nodeIsActive(state: EditorState, type: NodeType, attrs = {}) {
+  const predicate = (node: Node) => node.type === type
+  const node = findSelectedNodeOfType(type)(state.selection)
+    || findParentNode(predicate)(state.selection)
+
+  if (!Object.keys(attrs).length || !node) {
+    return !!node
+  }
+
+  return node.node.hasMarkup(type, attrs)
+}