@atlaskit/editor-plugin-selection/dist/es2019/pm-plugins/mark-boundary-cursor-main.js

Selection plugin for @atlaskit/editor-core

import { SafePlugin } from '@atlaskit/editor-common/safe-plugin';
import { DecorationSet } from '@atlaskit/editor-prosemirror/view';
import { markBoundaryCursorPluginKey } from './mark-boundary-cursor-plugin-key';
import { createMarkBoundaryCursorDecoration } from './mark-boundary-cursor/ui/mark-boundary-cursor-decoration';
import { getActiveMarksSide } from './mark-boundary-cursor/utils/active-marks-side';
export const createMarkBoundaryCursorPlugin = () => {
  return new SafePlugin({
    key: markBoundaryCursorPluginKey,
    state: {
      init: () => ({
        decorations: DecorationSet.empty
      }),
      apply(tr, currentState) {
        const {
          selection,
          storedMarks,
          doc,
          selectionSet,
          storedMarksSet,
          docChanged
        } = tr;
        if (!selectionSet && !storedMarksSet && !docChanged) {
          return currentState;
        }
        const side = getActiveMarksSide({
          selection,
          storedMarks
        });
        if (!side) {
          return {
            decorations: DecorationSet.empty
          };
        }
        return {
          decorations: DecorationSet.create(doc, [createMarkBoundaryCursorDecoration(selection.head, side)])
        };
      }
    },
    props: {
      decorations: state => {
        var _markBoundaryCursorPl;
        return (_markBoundaryCursorPl = markBoundaryCursorPluginKey.getState(state)) === null || _markBoundaryCursorPl === void 0 ? void 0 : _markBoundaryCursorPl.decorations;
      }
    }
  });
};