react-photoswipe-gallery/dist/helpers/get-slides-and-index-from-items-refs.js

React component wrapper around PhotoSwipe

import sortNodes from "./sort-nodes.js";
import ensureRefPassed from "./ensure-ref-passed.js";
import entryItemRefIsElement from "./entry-item-ref-is-element.js";
import itemToSlide from "./item-to-slide.js";
import { NoRefError } from "../no-ref-error.js";
const getSlidesAndIndexFromItemsRefs = (items, targetRef, targetId, itemIndex) => {
  const entries = Array.from(items.current);
  if (typeof itemIndex === 'number' && (entries[itemIndex] === undefined || !entryItemRefIsElement(entries[itemIndex]))) {
    throw new NoRefError(`Failed to open at index ${itemIndex}`);
  }
  const {
    slides,
    index
  } = entries.map(ensureRefPassed).sort(([{
    current: a
  }], [{
    current: b
  }]) => sortNodes(a, b)).reduce((acc, entry, i) => {
    const [ref, itemData] = entry;
    if (targetRef === ref || itemData.id !== undefined && String(itemData.id) === targetId) {
      acc.index = i;
    }
    acc.slides.push(itemToSlide(itemData, ref));
    return acc;
  }, {
    slides: [],
    index: itemIndex || null
  });
  return {
    slides,
    index
  };
};
export default getSlidesAndIndexFromItemsRefs;