ant-design-vue/es/vc-virtual-list/Filler.js

An enterprise-class UI design language and Vue-based implementation

import { isVNode as _isVNode, createVNode as _createVNode } from "vue";

function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }

function _extends() { _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }

import classNames from '../_util/classNames';
import ResizeObserver from '../vc-resize-observer';

function _isSlot(s) {
  return typeof s === 'function' || Object.prototype.toString.call(s) === '[object Object]' && !_isVNode(s);
}

var Filter = function Filter(_ref, _ref2) {
  var _slot;

  var height = _ref.height,
      offset = _ref.offset,
      prefixCls = _ref.prefixCls,
      onInnerResize = _ref.onInnerResize;
  var slots = _ref2.slots;

  var _a;

  var outerStyle = {};
  var innerStyle = {
    display: 'flex',
    flexDirection: 'column'
  };

  if (offset !== undefined) {
    outerStyle = {
      height: "".concat(height, "px"),
      position: 'relative',
      overflow: 'hidden'
    };
    innerStyle = _extends(_extends({}, innerStyle), {
      transform: "translateY(".concat(offset, "px)"),
      position: 'absolute',
      left: 0,
      right: 0,
      top: 0
    });
  }

  return _createVNode("div", {
    "style": outerStyle
  }, [_createVNode(ResizeObserver, {
    "onResize": function onResize(_ref3) {
      var offsetHeight = _ref3.offsetHeight;

      if (offsetHeight && onInnerResize) {
        onInnerResize();
      }
    }
  }, _isSlot(_slot = _createVNode("div", {
    "style": innerStyle,
    "class": classNames(_defineProperty({}, "".concat(prefixCls, "-holder-inner"), prefixCls))
  }, [(_a = slots.default) === null || _a === void 0 ? void 0 : _a.call(slots)])) ? _slot : {
    default: function _default() {
      return [_slot];
    }
  })]);
};

Filter.displayName = 'Filter';
Filter.inheritAttrs = false;
Filter.props = {
  prefixCls: String,

  /** Virtual filler height. Should be `count * itemMinHeight` */
  height: Number,

  /** Set offset of visible items. Should be the top of start item position */
  offset: Number,
  onInnerResize: Function
};
export default Filter;