@atlaskit/renderer/dist/es2019/actions/selection.js

Renderer component

import { TextSelection } from '@atlaskit/editor-prosemirror/state';
import { getFragmentsFromSelection, getLocalIdsFromSelection } from '@atlaskit/editor-common/selection';
import { getPosFromRange, getStartPos, findParent } from '../steps';
export const getSelectionContext = ({
  doc,
  schema
}) => {
  if (!doc || !schema) {
    return null;
  }
  const selection = document.getSelection();
  if (!selection || selection.type !== 'Range' || selection.rangeCount !== 1) {
    return null;
  }
  const range = selection.getRangeAt(0);
  if (range.collapsed) {
    return null;
  }
  const startNode = findParent(range.startContainer);
  const endNode = findParent(range.endContainer);
  if (!startNode || !endNode) {
    return null;
  }
  const startPos = getStartPos(startNode);
  const endPos = getStartPos(endNode);
  if (startPos === null || endPos === null) {
    return null;
  }
  const pos = getPosFromRange(range);
  if (!pos) {
    return null;
  }
  const from = Math.min(pos.from, pos.to);
  const to = Math.max(pos.from, pos.to);
  if (from === to) {
    return null;
  }
  let pmSelection;
  try {
    pmSelection = TextSelection.create(doc, from, to);
  } catch {
    return null;
  }
  const startIndex = from - startPos;
  const endIndex = to - endPos;
  if (startIndex < 0 || endIndex < 0) {
    return null;
  }
  const selectionFragment = getFragmentsFromSelection(pmSelection);
  const localIds = getLocalIdsFromSelection(pmSelection);
  return {
    localIds,
    selectionFragment,
    selectionMarkdown: null,
    startIndex,
    endIndex
  };
};