@wordpress/blocks/build/api/raw-handling/is-inline-content.js

Block API for WordPress.

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = isInlineContent;
var _dom = require("@wordpress/dom");
/**
 * WordPress dependencies
 */

/**
 * Checks if the given node should be considered inline content, optionally
 * depending on a context tag.
 *
 * @param {Node}   node       Node name.
 * @param {string} contextTag Tag name.
 *
 * @return {boolean} True if the node is inline content, false if nohe.
 */
function isInline(node, contextTag) {
  if ((0, _dom.isTextContent)(node)) {
    return true;
  }
  if (!contextTag) {
    return false;
  }
  const tag = node.nodeName.toLowerCase();
  const inlineAllowedTagGroups = [['ul', 'li', 'ol'], ['h1', 'h2', 'h3', 'h4', 'h5', 'h6']];
  return inlineAllowedTagGroups.some(tagGroup => [tag, contextTag].filter(t => !tagGroup.includes(t)).length === 0);
}
function deepCheck(nodes, contextTag) {
  return nodes.every(node => isInline(node, contextTag) && deepCheck(Array.from(node.children), contextTag));
}
function isDoubleBR(node) {
  return node.nodeName === 'BR' && node.previousSibling && node.previousSibling.nodeName === 'BR';
}
function isInlineContent(HTML, contextTag) {
  const doc = document.implementation.createHTMLDocument('');
  doc.body.innerHTML = HTML;
  const nodes = Array.from(doc.body.children);
  return !nodes.some(isDoubleBR) && deepCheck(nodes, contextTag);
}
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