@atlaskit/editor-plugin-focus/dist/es2019/pm-plugins/main.js

Focus plugin for @atlaskit/editor-core

import { SafePlugin } from '@atlaskit/editor-common/safe-plugin';
import { PluginKey } from '@atlaskit/editor-prosemirror/state';
export const key = new PluginKey('focusPluginHandler');
export const createPlugin = () => new SafePlugin({
  key,
  state: {
    init() {
      return {
        hasFocus: false
      };
    },
    apply(tr, oldPluginState) {
      const meta = tr.getMeta(key);
      if (typeof meta === 'boolean') {
        if (meta !== oldPluginState.hasFocus) {
          return {
            hasFocus: meta
          };
        }
      }
      return oldPluginState;
    }
  },
  props: {
    handleDOMEvents: {
      focus: view => {
        const focusState = key.getState(view.state);
        if (!(focusState !== null && focusState !== void 0 && focusState.hasFocus)) {
          view.dispatch(view.state.tr.setMeta(key, true));
        }
        return false;
      },
      blur: view => {
        const focusState = key.getState(view.state);
        if (focusState !== null && focusState !== void 0 && focusState.hasFocus) {
          view.dispatch(view.state.tr.setMeta(key, false));
        }
        return false;
      }
    }
  }
});