tdesign-mobile-vue/lib/shared/useScrollParent/index.js

tdesign-mobile-vue

/**
 * tdesign v1.7.0
 * (c) 2024 TDesign Group
 * @license MIT
 */

import { ref, onMounted } from 'vue';
import { isBrowser } from '../util.js';
import '@babel/runtime/helpers/slicedToArray';
import 'lodash/isNumber';
import '../../config.js';

var overflowScrollReg = /scroll|auto/i;
var defaultRoot = isBrowser ? window : void 0;
function isElement(node) {
  var ELEMENT_NODE_TYPE = 1;
  return node.tagName !== "HTML" && node.tagName !== "BODY" && node.nodeType === ELEMENT_NODE_TYPE;
}
function getScrollParent(el) {
  var root = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : defaultRoot;
  var node = el;
  while (node && node !== root && isElement(node)) {
    var _window$getComputedSt = window.getComputedStyle(node),
      overflowY = _window$getComputedSt.overflowY;
    if (overflowScrollReg.test(overflowY)) {
      return node;
    }
    node = node.parentNode;
  }
  return root;
}
function useScrollParent(el) {
  var root = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : defaultRoot;
  var scrollParent = ref();
  onMounted(function () {
    if (el.value) {
      scrollParent.value = getScrollParent(el.value, root);
    }
  });
  return scrollParent;
}

export { getScrollParent, useScrollParent };
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