@wordpress/block-editor/build/components/rich-text/use-undo-automatic-change.js

Generic block editor.

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.useUndoAutomaticChange = useUndoAutomaticChange;

var _data = require("@wordpress/data");

var _compose = require("@wordpress/compose");

var _keycodes = require("@wordpress/keycodes");

var _store = require("../../store");

/**
 * WordPress dependencies
 */

/**
 * Internal dependencies
 */
function useUndoAutomaticChange() {
  const {
    didAutomaticChange,
    getSettings
  } = (0, _data.useSelect)(_store.store);
  return (0, _compose.useRefEffect)(element => {
    function onKeyDown(event) {
      const {
        keyCode
      } = event;

      if (event.defaultPrevented) {
        return;
      }

      if (keyCode !== _keycodes.DELETE && keyCode !== _keycodes.BACKSPACE && keyCode !== _keycodes.ESCAPE) {
        return;
      }

      const {
        __experimentalUndo
      } = getSettings();

      if (!__experimentalUndo) {
        return;
      }

      if (!didAutomaticChange()) {
        return;
      }

      event.preventDefault();

      __experimentalUndo();
    }

    element.addEventListener('keydown', onKeyDown);
    return () => {
      element.removeEventListener('keydown', onKeyDown);
    };
  }, []);
}
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