@gechiui/block-editor/build-module/utils/pre-parse-patterns.js

Generic block editor.

/**
 * GeChiUI dependencies
 */
import { useSelect, select } from '@gechiui/data';
import { useEffect } from '@gechiui/element';
/**
 * Internal dependencies
 */

import { store as blockEditorStore } from '../store';

const requestIdleCallback = (() => {
  if (typeof window === 'undefined') {
    return callback => {
      setTimeout(() => callback(Date.now()), 0);
    };
  }

  return window.requestIdleCallback || window.requestAnimationFrame;
})();

const cancelIdleCallback = (() => {
  if (typeof window === 'undefined') {
    return clearTimeout;
  }

  return window.cancelIdleCallback || window.cancelAnimationFrame;
})();

export function usePreParsePatterns() {
  const patterns = useSelect(_select => _select(blockEditorStore).getSettings().__experimentalBlockPatterns, []);
  useEffect(() => {
    if (!(patterns !== null && patterns !== void 0 && patterns.length)) {
      return;
    }

    let handle;
    let index = -1;

    const callback = () => {
      index++;

      if (index >= patterns.length) {
        return;
      }

      select(blockEditorStore).__experimentalGetParsedPattern(patterns[index].name);

      handle = requestIdleCallback(callback);
    };

    handle = requestIdleCallback(callback);
    return () => cancelIdleCallback(handle);
  }, [patterns]);
  return null;
}
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