move commands again

packages/core/src/commands/setContent.ts

@@ -0,0 +1,17 @@
+import { TextSelection } from 'prosemirror-state'
+import { Command } from '../Editor'
+
+export default (content: string, emitUpdate: Boolean = false, parseOptions = {}): Command => ({ tr, editor, dispatch }) => {
+  const { createDocument } = editor
+  const { doc } = tr
+  const document = createDocument(content, parseOptions)
+  const selection = TextSelection.create(doc, 0, doc.content.size)
+
+  if (dispatch) {
+    tr.setSelection(selection)
+      .replaceSelectionWith(document, false)
+      .setMeta('preventUpdate', !emitUpdate)
+  }
+
+  return true
+}