@atlaskit/editor-plugin-paste/dist/es2019/pm-plugins/clipboard-parser.js

Paste plugin for @atlaskit/editor-core

import { DOMParser as PMDOMParser } from '@atlaskit/editor-prosemirror/model';
import { expValEquals } from '@atlaskit/tmp-editor-statsig/exp-val-equals';

/**
 * Builds additional parseDOM rules to inject into the clipboard parser.
 *
 * Adding a rule with a higher priority than the default schema rules, allows
 * specific HTML patterns to be parsed as a different node type than the schema
 * would normally choose.
 */
function buildAdditionalClipboardParseRules(schema) {
  var _panel$spec$parseDOM, _panel$spec$parseDOM$;
  const rules = [];

  // This means that panels with tables inside always stay as panel_c1,
  // but panels without tables retain standard behaviour
  // of choosing between panel_c1 and panel depending on the context.
  // e.g. panel with table pasted in expand gets lifted out, panel with normal text gets pasted inside expand
  const {
    panel_c1,
    panel
  } = schema.nodes;
  if (!panel_c1 || !panel) {
    return rules;
  }
  const panelGetAttrs = (_panel$spec$parseDOM = panel.spec.parseDOM) === null || _panel$spec$parseDOM === void 0 ? void 0 : (_panel$spec$parseDOM$ = _panel$spec$parseDOM[0]) === null || _panel$spec$parseDOM$ === void 0 ? void 0 : _panel$spec$parseDOM$.getAttrs;
  rules.push({
    tag: 'div[data-panel-type]',
    priority: 60,
    node: panel_c1.name,
    getAttrs: dom => {
      const hasTable = dom.querySelector('[data-prosemirror-node-name="table"]') !== null;
      if (!hasTable) {
        return false; // fall through to standard panel rule
      }
      return panelGetAttrs ? panelGetAttrs(dom) : null;
    }
  });
  return rules;
}

/**
 * Creates a ProseMirror plugin with a custom `clipboardParser` that extends the
 * schema's default parser with additional rules for handling specific paste scenarios.
 */
export function createClipboardParser(schema) {
  if (!expValEquals('platform_editor_nest_table_in_panel', 'isEnabled', true)) {
    return undefined;
  }
  const additionalRules = buildAdditionalClipboardParseRules(schema);
  const baseParser = PMDOMParser.fromSchema(schema);
  const customParser = new PMDOMParser(schema, [...additionalRules, ...baseParser.rules]);
  return customParser;
}