move commands again

packages/core/src/commands/insertHTML.ts

@@ -0,0 +1,31 @@
+import { DOMParser } from 'prosemirror-model'
+import { Selection, Transaction } from 'prosemirror-state'
+import { ReplaceStep, ReplaceAroundStep } from 'prosemirror-transform'
+import elementFromString from '../utils/elementFromString'
+import { Command } from '../Editor'
+
+// TODO: move to utils
+// https://github.com/ProseMirror/prosemirror-state/blob/master/src/selection.js#L466
+function selectionToInsertionEnd(tr: Transaction, startLen: number, bias: number) {
+  const last = tr.steps.length - 1
+  if (last < startLen) return
+  const step = tr.steps[last]
+  if (!(step instanceof ReplaceStep || step instanceof ReplaceAroundStep)) return
+  const map = tr.mapping.maps[last]
+  let end = 0
+  map.forEach((_from, _to, _newFrom, newTo) => { if (end === 0) end = newTo })
+  tr.setSelection(Selection.near(tr.doc.resolve(end as unknown as number), bias))
+}
+
+export default (value: string): Command => ({ tr, state, dispatch }) => {
+  const { selection } = tr
+  const element = elementFromString(value)
+  const slice = DOMParser.fromSchema(state.schema).parseSlice(element)
+
+  if (dispatch) {
+    tr.insert(selection.anchor, slice.content)
+    selectionToInsertionEnd(tr, tr.steps.length - 1, -1)
+  }
+
+  return true
+}