add core extensions

packages/core/src/commands/focus.ts

@@ -1,61 +0,0 @@
-import { TextSelection } from 'prosemirror-state'
-import { Editor, Command } from '../Editor'
-import minMax from '../utils/minMax'
-
-type Position = 'start' | 'end' | number | boolean | null
-type FocusCommand = (position?: Position) => Command
-
-declare module '../Editor' {
-  interface Commands {
-    focus: FocusCommand
-  }
-}
-
-interface ResolvedSelection {
-  from: number,
-  to: number,
-}
-
-function resolveSelection(editor: Editor, position: Position = null): ResolvedSelection {
-  if (position === null) {
-    return editor.selection
-  }
-
-  if (position === 'start' || position === true) {
-    return {
-      from: 0,
-      to: 0,
-    }
-  }
-
-  if (position === 'end') {
-    const { size } = editor.state.doc.content
-
-    return {
-      from: size,
-      to: size - 1, // TODO: -1 only for nodes with content
-    }
-  }
-
-  return {
-    from: position as number,
-    to: position as number,
-  }
-}
-
-export const focus: FocusCommand = (position = null) => ({ editor, view, tr }) => {
-  if ((view.hasFocus() && position === null) || position === false) {
-    return true
-  }
-
-  const { from, to } = resolveSelection(editor, position)
-  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)
-
-  tr.setSelection(selection)
-  view.focus()
-
-  return true
-}