add basic new chaining

packages/core/src/commands/focus.ts

@@ -1,8 +1,8 @@
-import { Editor } from '../Editor'
+import { Editor, Command } from '../Editor'
 import { TextSelection } from 'prosemirror-state'
 import minMax from '../utils/minMax'
 
-type FocusCommand = (position?: Position) => Editor
+type FocusCommand = (position?: Position) => Command
 
 declare module '../Editor' {
   interface Editor {
@@ -44,25 +44,45 @@ function resolveSelection(editor: Editor, position: Position = null): ResolvedSe
   }
 }
 
-export default (next: Function, editor: Editor) => (position = null) => {
-  const { view, state } = editor
+// export default (next: Function, editor: Editor) => (position = null) => {
+//   const { view, state } = editor
+
+//   if ((view.hasFocus() && position === null) || position === false) {
+//     next()
+//     return
+//   }
+
+//   const { from, to } = resolveSelection(editor, position)
+//   const { doc, tr } = state
+//   const resolvedFrom = minMax(from, 0, doc.content.size)
+//   const resolvedEnd = minMax(to, 0, doc.content.size)
+//   const selection = TextSelection.create(doc, resolvedFrom, resolvedEnd)
+//   const transaction = tr.setSelection(selection)
+
+//   view.dispatch(transaction)
+//   view.focus()
+//   //@ts-ignore
+//   // console.log(bla)
+//   // return 'FOCUS'
+//   next()
+// }
+
+
+export const focus: FocusCommand = (position = null) => ({ editor, tr }) => {
+  const { view } = editor
 
   if ((view.hasFocus() && position === null) || position === false) {
-    next()
-    return
+    return true
   }
 
   const { from, to } = resolveSelection(editor, position)
-  const { doc, tr } = state
+  const { doc } = tr
   const resolvedFrom = minMax(from, 0, doc.content.size)
   const resolvedEnd = minMax(to, 0, doc.content.size)
   const selection = TextSelection.create(doc, resolvedFrom, resolvedEnd)
-  const transaction = tr.setSelection(selection)
-
-  view.dispatch(transaction)
+  
+  tr.setSelection(selection)
   view.focus()
-  //@ts-ignore
-  // console.log(bla)
-  // return 'FOCUS'
-  next()
+
+  return true
 }