@wordpress/block-editor/build-module/components/block-navigation/appender.js

Generic block editor.

import { createElement } from "@wordpress/element";

/**
 * External dependencies
 */
import classnames from 'classnames';
/**
 * WordPress dependencies
 */

import { __experimentalTreeGridCell as TreeGridCell } from '@wordpress/components';
import { useInstanceId } from '@wordpress/compose';
import { __, sprintf } from '@wordpress/i18n';
import { useSelect } from '@wordpress/data';
/**
 * Internal dependencies
 */

import BlockNavigationLeaf from './leaf';
import Indentation from './indentation';
import Inserter from '../inserter';
import { store as blockEditorStore } from '../../store';
export default function BlockNavigationAppender({
  parentBlockClientId,
  position,
  level,
  rowCount,
  path
}) {
  const isDragging = useSelect(select => {
    const {
      isBlockBeingDragged,
      isAncestorBeingDragged
    } = select(blockEditorStore);
    return isBlockBeingDragged(parentBlockClientId) || isAncestorBeingDragged(parentBlockClientId);
  }, [parentBlockClientId]);
  const instanceId = useInstanceId(BlockNavigationAppender);
  const descriptionId = `block-navigation-appender-row__description_${instanceId}`;
  const appenderPositionDescription = sprintf(
  /* translators: 1: The numerical position of the block that will be inserted. 2: The level of nesting for the block that will be inserted. */
  __('Add block at position %1$d, Level %2$d'), position, level);
  return createElement(BlockNavigationLeaf, {
    className: classnames({
      'is-dragging': isDragging
    }),
    level: level,
    position: position,
    rowCount: rowCount,
    path: path
  }, createElement(TreeGridCell, {
    className: "block-editor-block-navigation-appender__cell",
    colSpan: "3"
  }, ({
    ref,
    tabIndex,
    onFocus
  }) => createElement("div", {
    className: "block-editor-block-navigation-appender__container"
  }, createElement(Indentation, {
    level: level
  }), createElement(Inserter, {
    rootClientId: parentBlockClientId,
    __experimentalIsQuick: true,
    "aria-describedby": descriptionId,
    toggleProps: {
      ref,
      tabIndex,
      onFocus
    }
  }), createElement("div", {
    className: "block-editor-block-navigation-appender__description",
    id: descriptionId
  }, appenderPositionDescription))));
}
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