@atlaskit/editor-plugin-synced-block/dist/cjs/nodeviews/isEmptySourceSyncBlock.js

SyncedBlock plugin for @atlaskit/editor-core

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.isEmptySourceSyncBlock = void 0;
/**
 * A source synced block counts as "empty" when it holds exactly one paragraph and that paragraph
 * has no content. This is the only state in which the source placeholder should be shown.
 *
 * Emptiness is deliberately derived from the ProseMirror node rather than the rendered DOM.
 * ProseMirror and other plugins inject non-content children into the paragraph element — the
 * selection marker's cursor widget (`.ProseMirror-widget`), ProseMirror's `.ProseMirror-separator`
 * hack node, and the `.ProseMirror-trailingBreak` — so DOM shape is not a reliable signal of
 * whether the user has typed anything. See EDITOR-8327.
 */
var isEmptySourceSyncBlock = exports.isEmptySourceSyncBlock = function isEmptySourceSyncBlock(node) {
  if (node.childCount !== 1) {
    return false;
  }
  var firstChild = node.firstChild;
  return (firstChild === null || firstChild === void 0 ? void 0 : firstChild.type.name) === 'paragraph' && firstChild.content.size === 0;
};